Granted Patent B2

US 12,650,137 · App. 18/579,527 · Granted Jun 9, 2026

Inventor: Jose Antonio Veliz Gonzalez (Nuevo Leon, MX)

F15B19/00B62D5/18F15B21/008

Abstract

Claims (19)

1 . A method and application for eliminating a gaseous cavitation where a noise, vibrations, gases, and a fluid degradation are present in a hydraulic steering system in heavy duty vehicles with a dual hydraulic steering gearbox, comprising the steps of:

measuring and establishing a current operating conditions of the hydraulic steering system; a hydraulic fluid, a maximum RPM of a hydraulic pump (Max RPM Test (1)) and a maximum operating temperature of a fluid in the hydraulic system pump (Max Temp Test (1)),

wherein the required functionality of the hydraulic system is established, a period of time that the hydraulic steering system is kept in operation for each test is predetermined and device for detecting gaseous cavitation during the tests are established, for which tests N, T and M are initiated, Max RPM Test (N), where the first N is equal to one (N=1), Max Temp Test (T), where the first T is equal to one (T=1), and Min RPM Test (M), where the first M is equal to one (M=1), and in which a depuration of the system is performed, draining in its entirety the hydraulic fluid and the system is supplied in its entirety with new fluid,

wherein the system in operation is increased to its maximum RPM (Max RPM Test (N)) of the hydraulic pump; wherein it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)), where the hydraulic system is kept in operation for a predetermined period of time, where it is evaluated if there is presence of gaseous cavitation,

wherein if the presence of gaseous cavitation is confirmed, the test is stopped, and a new N is determined, equal to N plus one (N=N+1), and a new maximum RPM of the hydraulic pump is determined (Max RPM Test (N)); where the new maximum RPM will always be lower than the maximum operation of the previous test (Max RPM Test (N−1)); to then proceed to the next test,

where this test is repeated until there is no presence of gaseous cavitation, once it is established that the system operates permanently without gaseous cavitation and also detected that the development of the hydraulic system does not meet the required functionality, the test is stopped to evaluate the temperature and a new T is established, equal to T plus one (T=T+1); and a temperature reduction technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Max Temp Test (T)),

wherein the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Max Temp Test (T−1)),

where the hydraulic pump RPM test is restarted (Max RPM Test (N)), with N equal to one (N=1), where the tests are repeated; Max RPM Test (N) and Max Temp Test (T) until there is no presence of gaseous cavitation and the development of the hydraulic system meets the required functionality, by then and with the fulfillment of the previous step, the test is stopped and it is established that the development of the hydraulic system meets the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum RPM (Max RPM Test (N)) and with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)),

determining the range of compliance of the development of the hydraulic system for the required functionality,

wherein the test is called Min RPM Test (M), which begins with M equal to one (M=1), being Min RPM Test (1) equal to the Max RPM Test (N);

wherein the system in operation is increased to its maximum RPM (Min RPM Test (M)) of the hydraulic pump, where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)) and the hydraulic system is kept in operation for a predetermined period of time, so if it is confirmed that the evolution of the hydraulic system meets the required functionality, the test is stopped and a new M is established, equal to M plus one (M=M+1); and a new maximum RPM of the hydraulic pump is predetermined (Min RPM Test (M));

where the new maximum RPM will always be lower than the maximum operation of the previous test (Min RPM Test (M−1)), where the test will be repeated until the development of the hydraulic system does not comply with the required functionality, where if it does not comply with the required functionality; the test is stopped and it is established that the development of the hydraulic system complies with the required functionality and the hydraulic pump operates in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, in a maximum range of RPM (Max RPM Test (N)) and minimum RPM (Min RPM Test (M−1)) and with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)),

wherein based on the results obtained from the method, a maximum value of RPM of the pump in the hydraulic system is determined and the technical modifications are implemented in the pump to comply with the RPM, using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9;

wherein based on the results obtained from the method a new maximum value of fluid operating temperature in the hydraulic system pump is determined, then the selected temperature decrease technique is implemented.

2 . The method according to claim 1 , wherein a Min Temp Test (G), the first G being equal to one (G=1), and in which a depuration of the system is performed, draining in its entirety the hydraulic fluid and the system is supplied in its entirety with new fluid, where the system in operation is increased to its maximum RPM (Max RPM Test (N)) of the hydraulic pump, wherein it is confirmed that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)), wherein the hydraulic system is maintained in operation for a predetermined period of time, wherein it is evaluated whether the presence of gaseous cavitation is confirmed; wherein, if the presence of gaseous cavitation is confirmed, the test is stopped and a new T is established, equal to T plus one (T=T+1) is determined; and a temperature reduction technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Max Temp Test (T)) where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operating temperature of the previous test (Max Temp Test (T−1)); to then proceed to the next test, where this test is repeated until there is no presence of gaseous cavitation, once it is established that the system is operating permanently without gaseous cavitation and it is also established that the evolution of the hydraulic system does not meet the required functionality, the test is stopped to evaluate the revolutions per minute of the hydraulic pump and a new N is established, equal to N plus one (N=N+1), and a new maximum RPM of the hydraulic pump is predetermined (Max RPM Test (N)), the new maximum RPM always being lower than the maximum operation of the previous test (Max RPM Test (N−1)), the test for the maximum operating temperature of the fluid in the pump of the hydraulic system is restarted (Max Temp Test (T)), T being equal to one (T=1), the tests being repeated; Max Temp Test (T) and Max RPM Test (N) until there is no presence of gaseous cavitation and the evolution of the hydraulic system meets the required functionality, where once it is established that the system is operating permanently without gaseous cavitation and the evolution of the hydraulic system meets the required functionality, we proceed to determine whether or not it is technically possible and necessary to reduce the temperature, if it is technically possible and it is considered necessary to reduce the temperature, we proceed to establish the temperature range with the test; Min Temp Test (G), which starts with G equal to one (G=1), being Min Temp Test (1) equal to Max Temp Test (T); wherein, the system in operation is increased to its maximum RPM (Max RPM Test (N)) of the hydraulic pump, wherein it is verified that the fluid in the hydraulic system pump is at its maximum operating temperature (Min Temp Test (G)), and the hydraulic system is maintained in operation for a predetermined period of time, wherein, if the evolution of the hydraulic system is in accordance with the required functionality, and if it is technically possible and considered necessary to reduce the temperature, the test is stopped and a new G is determined, equal to G plus one (G=G+1), and a temperature reduction technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Min Temp Test (G)); the new maximum operating temperature of the fluid in the pump of the hydraulic system always being lower than the maximum operating temperature of the previous test (Min Temp Test (G−1)), the test being repeated until the development of the hydraulic system does not meet the required functionality and it is not technically possible and it is not considered necessary to reduce the temperature, where, if any of the above conditions is not met, the test is stopped and it is determined that the hydraulic system development meets the required functionality and the hydraulic pump can operate continuously in the hydraulic system without gaseous cavitation with the hydraulic fluid determined, with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)) and a minimum operating temperature of the fluid in the hydraulic system pump (Min Temp Test (G−1)) and with a maximum RPM (Max RPM Test (N)) of the hydraulic pump in the hydraulic system; where, and based on the results obtained from this method, a maximum operating temperature value of the fluid in the hydraulic system pump is determined and the selected temperature reduction technique is implemented; if, based on the results obtained from this method, a new maximum RPM value of the pump in the hydraulic system is determined, then the technical modifications are implemented in the pump to comply with the RPM, the above using the motion ratio transmission formulas, for which a reduction of the RPM is determined in a ratio of 2 to a range of 0.5 to 1.9; if the development of the hydraulic system meets the required functionality, but it is not technically possible and it is not considered necessary to reduce the temperature, the test is stopped and it is determined that the development of the hydraulic system meets the required functionality and the hydraulic pump can operate permanently in the hydraulic system without gaseous cavitation with the determined hydraulic fluid, with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)) and with a maximum RPM of the pump in the hydraulic system (Max RPM Test (N)); where, and based on the results obtained from this method, a maximum value of the operating temperature of the fluid in the hydraulic system pump is determined and the selected temperature reduction technique is implemented; if, based on of the results obtained from this method, a new maximum RPM value of the of the pump in the hydraulic system is determined, then the technical modifications are implemented in the pump in order to comply with the RPM, the above using the motion ratio transmission formulas, for which a reduction of the RPM is determined in a ratio of 2 to a range of 0.5 to 1.9.

3 . The method according to claim 1 , wherein a Min Flow Test (B), where the first B is equal to one (B=1), and in which a depuration of the system is performed, draining in its entirety the hydraulic fluid and the system is supplied in its entirety with new fluid, where the system in operation is increased to its maximum flow rate of the hydraulic pump (Max Flow Test (A)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)), where the hydraulic system is kept in operation for a predetermined period of time, where it is evaluated if there is presence of gaseous cavitation; If the presence of gaseous cavitation is confirmed, the test is stopped and a new A is established, equal to A plus one (A=A+1); and a new maximum flow rate of the hydraulic pump is predetermined (Max Flow Test (A)), through the decrease of RPM of the hydraulic pump, where the new maximum flow rate will always be less than the maximum operation of the previous test (Max Flow Test (A−1)), to then proceed to the next test, where this test is repeated until there is no presence of gaseous cavitation, once it is established that the system operates permanently without gaseous cavitation and it is also detected that the development of the hydraulic system does not meet the required functionality, the test is stopped to evaluate the temperature and a new T is established, equal to T plus one (T=T+1); and a temperature decrease technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Max Temp Test (T)), where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Max Temp Test (T−1)), where the hydraulic pump flow rate test is restarted (Max Flow Test (A)), with A equal to one (A=1), where the tests are repeated; Max Flow Test (A) and Max Temp Test (T) until there is no presence of gaseous cavitation and the development of the hydraulic system complies with the required functionality, by then and with the compliance of the previous step, the test is stopped and it is established that the development of the hydraulic system complies with the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum flow rate (Max Flow Test (A)) and with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)), therefore we proceed to determine the range of compliance of the development of the hydraulic system for the required functionality, where the test is called Min Flow Test (B), which begins with B equal to one (B=1), being Min Flow Test (1) equal to the Max Flow Test (A); where the system in operation is increased to its maximum flow rate of the hydraulic pump (Min Flow Test (B)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)) and the hydraulic system is kept in operation for a predetermined period of time, so if it is confirmed that the development of the hydraulic system meets the required functionality, the test is stopped and a new B is established, equal to B plus one (B=B+1); and a new maximum flow rate of the hydraulic pump is predetermined (Min Flow Test (B)), through the decrease of RPM of the hydraulic pump; where the new maximum flow rate will always be less than the maximum operation of the previous test (Min Flow Test (B−1)); where the test will be repeated until the development of the hydraulic system does not comply with the required functionality, where when it does not comply with the required functionality the test is stopped and it is established that the development of the hydraulic system complies with the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, in a maximum flow rate range (Max Flow Test (A)) and minimum flow rate range (Min Flow Test (B−1)) and with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)); where and based on the results obtained from this method, a maximum value of flow rate of the pump in the hydraulic system is determined and the technical modifications are implemented in the pump to comply with the determined flow rate, through the decrease of RPM of the hydraulic pump, the above using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9; if, based on the results obtained from this method a new maximum operating temperature value of the fluid in the hydraulic system pump is determined, then the selected temperature decrease technique is implemented.

4 . The method according to claim 1 , further including the step of: establishing a required functionality of the hydraulic system, the period of time that the hydraulic system will be kept in operation for each test is predetermined and the means to detect gaseous cavitation during the tests are established, for which tests A, T and G are initiated, called; Max Flow Test (A), where the first A is equal to one (A=1), Max Temp Test (T), where the first T is equal to one (T=1), and Min Temp Test (G), where the first G is equal to one (G=1), and in which a depuration of the system is performed, draining in its entirety the hydraulic fluid and the system is supplied in its entirety with new fluid, where the system in operation is increased to its maximum flow rate of the hydraulic pump (Max Flow Test (A)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)), where the hydraulic system is kept in operation for a predetermined period of time, where it is evaluated if there is presence of gaseous cavitation; whereby, if the presence of gaseous cavitation is confirmed, the test is stopped and a new T is established, equal to T plus one (T=T+1); and a temperature decrease technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Max Temp Test (T)); where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Max Temp Test (T−1)); to then proceed to the next test, where this test is repeated until there is no presence of gaseous cavitation, once established that the system operates permanently without gaseous cavitation and also detected that the development of the hydraulic system does not meet the required functionality, the test is stopped to evaluate the flow rate of the hydraulic pump and a new A is established, equal to A plus one (A=A+1); and a new maximum flow rate of the hydraulic pump is predetermined (Max Flow Test (A)), through the reduction of RPM of the hydraulic pump, where the new maximum flow rate will always be less than the maximum operation of the previous test (Max Flow Test (A−1)), where the test of maximum operating temperature of the fluid in the hydraulic system pump is restarted (Max Temp Test (T)), with T being equal to one (T=1), where the tests are repeated; Max Temp Test (T) and Max Flow Test (A) until there is no presence of gaseous cavitation and the development of the hydraulic system meets the required functionality, where once established that the system operates permanently without gaseous cavitation and the development of the hydraulic system meets the required functionality, we proceed to determine whether or not it is technically possible and necessary to decrease the temperature, if it is technically possible and it is considered necessary to decrease the temperature, we proceed to establish the temperature range with the test; Min Temp Test (G), which starts with G equal to one (G=1), being Min Temp Test (1) equal to Max Temp Test (T); where the system in operation is increased to its maximum flow rate of the hydraulic pump (Max Flow Test (A)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Min Temp Test (G)), and the hydraulic system is kept in operation for a predetermined period of time, where if the development of the hydraulic system complies with the required functionality, and if it is technically possible and it is considered necessary to decrease the temperature, the test is stopped and a new G is established, equal to G plus one (G=G+1); and a temperature decrease technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Min Temp Test (G)), where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Min Temp Test (G−1)), where the test will be repeated until the development of the hydraulic system does not meet the required functionality and it is not technically possible and it is not considered necessary to decrease the temperature, for which upon failure to comply with any of the above, the test is stopped and it is established that the development of the hydraulic system meets the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)) and a minimum operating temperature of the fluid in the hydraulic system pump (Min Temp Test (G−1)), and with a maximum flow rate (Max Flow Test (A)) of the hydraulic pump in the hydraulic system; where and based on the results obtained from this method, a maximum operating temperature value of the fluid in the hydraulic system pump is determined and the selected temperature decrease technique is implemented; if based on the results obtained from this method, a new maximum value of flow rate of the pump in the hydraulic system is determined, then the technical modifications are implemented in the pump to comply with the determined flow rate, through the decrease of RPM of the hydraulic pump, the above using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9; if the development of the hydraulic system meets the required functionality but it is not technically possible and it is not considered necessary to decrease the temperature, the test is stopped and it is established that the development of the hydraulic system meets the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)) and with a maximum flow rate (Max Flow Test (A)) of the hydraulic pump in the hydraulic system; where and based on the results obtained from this method, a maximum value of the operating temperature of the fluid in the hydraulic system pump is determined and the selected temperature decrease technique is implemented; if based on the results obtained from this method, a new maximum value of flow rate of the pump in the hydraulic system is determined, then the technical modifications are implemented in the pump to comply with the determined flow rate, through the decrease of RPM of the hydraulic pump, the above using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9.

5 . The method cording to claim 1 , wherein a maximum differential pressure of the hydraulic pump (Max DP Test (1)) and the maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (1)), where the required functionality of the hydraulic system is established, the period of time that the hydraulic system will be kept in operation for each test is predetermined and the means to detect gaseous cavitation during the tests are established, for which tests K, T and L are initiated, called; Max DP Test (K), where the first K is equal to one (K=1), Max Temp Test (T), where the first T is equal to one (T=1), and Min DP Test (L), where the first L is equal to one (L=1), and in which a depuration of the system is performed, draining in its entirety the hydraulic fluid and the system is supplied in its entirety with new fluid, where the system in operation is increased to its maximum differential pressure of the hydraulic pump (Max DP Test (K)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)), where the hydraulic system is kept in operation for a predetermined period of time, where it is evaluated if there is presence of gaseous cavitation; whereby, if the presence of gaseous cavitation is confirmed, the test is stopped and a new K is established, equal to K plus one (K=K+1) and a new maximum Differential Pressure of the hydraulic pump is predetermined (Max DP Test (K)), through the decrease of RPM of the hydraulic pump; where the new maximum Differential Pressure will always be lower than the maximum operation of the previous test (Max DP Test (K−1)); to then proceed to the next test, where this test is repeated until there is no presence of gaseous cavitation, once established that the system operates permanently without gaseous cavitation and also detected that the development of the hydraulic system does not meet the required functionality, the test is stopped to evaluate the temperature and a new T is established, equal to T plus one (T=T+1); and a temperature decrease technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Max Temp Test (T)), where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Max Temp Test (T−1)), where the Differential Pressure test of the hydraulic pump is restarted (Max DP Test (K)), with K equal to one (K=1), where the tests are repeated; Max DP Test (K) and Max Temp Test (T) until there is no presence of gaseous cavitation and the development of the hydraulic system complies with the required functionality, by then and with the fulfillment of the previous step, the test is stopped and it is established that the development of the hydraulic system complies with the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum Differential Pressure (Max DP Test (K)) and with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)), therefore we proceed to determine the range of compliance of the development of the hydraulic system for the required functionality, where the test is called Min DP Test (L), which begins with L equal to one (L=1), being Min DP Test (1) equal to the Max DP Test (K); where the system in operation is increased to its maximum Differential Pressure of the hydraulic pump (Min DP Test (L)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)) and the hydraulic system is kept in operation for a predetermined period of time, so if it is confirmed that the development of the hydraulic system meets the required functionality, the test is stopped and a new L is established, equal to L plus one (L=L+1); and a new maximum Differential Pressure of the hydraulic pump is predetermined (Min DP Test (L)), through the decrease of RPM of the hydraulic pump; where the new maximum Differential Pressure will always be lower than the maximum operation of the previous test (Min DP Test (L−1)); where the test will be repeated until the development of the hydraulic system does not comply with the required functionality, where when it does not comply with the required functionality the test is stopped and it is established that the development of the hydraulic system complies with the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, in a maximum range of Differential Pressure (Max DP Test (K)) and minimum of Differential Pressure (Min DP Test (L−1)) and with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)); where and based on the results obtained from this method, a maximum value of Differential Pressure of the pump in the hydraulic system is determined and the technical modifications are implemented in the pump to comply with the Differential Pressure determined, through the decrease of RPM of the hydraulic pump, the above using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9; if, based on the results obtained from this method a new maximum operating temperature value of the fluid in the hydraulic system pump is determined, then the selected temperature decrease technique is implemented.

6 . The method according to claim 1 , wherein a required functionality of the hydraulic system is established and the period of time that the hydraulic system will be kept in operation for each test is predetermined and the means to detect gaseous cavitation during the tests are established, for which tests K, T and G are initiated, called; Max DP Test (K), where the first K is equal to one (K=1), Max Temp Test (T), where the first T is equal to one (T=1), and Min Temp Test (G), where the first G is equal to one (G=1), and in which a depuration of the system is performed, draining in its entirety the hydraulic fluid and the system is supplied in its entirety with new fluid, where the system in operation is increased to its maximum differential pressure of the hydraulic pump (Max DP Test (K)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Max Temp Test (T)), where the hydraulic system is kept in operation for a predetermined period of time, where it is evaluated if there is presence of gaseous cavitation; whereby, if the presence of gaseous cavitation is confirmed, the test is stopped and a new T is established, equal to T plus one (T=T+1); and a temperature decrease technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Max Temp Test (T)); where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Max Temp Test (T−1)); to then proceed to the next test, where this test is repeated until there is no presence of gaseous cavitation, once established that the system operates permanently without gaseous cavitation and also detected that the development of the hydraulic system does not meet the required functionality, the test is stopped to evaluate the differential pressure of the hydraulic pump and a new K is established, equal to K plus one (K=K+1); and a new maximum Differential Pressure of the hydraulic pump is predetermined (Max DP Test (K)), through the decrease of RPM of the hydraulic pump, where the new maximum Differential Pressure will always be lower than the maximum operation of the previous test (Max DP Test (K−1)); where the maximum operating temperature test of the fluid in the hydraulic system pump is restarted (Max Temp Test (T)), with T equal to one (T=1), where the tests are repeated; Max Temp Test (T) and Max DP Test (K) until there is no presence of gaseous cavitation and the development of the hydraulic system meets the required functionality, where once established that the system operates permanently without gaseous cavitation and the development of the hydraulic system meets the required functionality, we proceed to determine whether or not it is technically possible and necessary to decrease the temperature, if it is technically possible and it is considered necessary to decrease the temperature, we proceed to establish the temperature range with the test; Min Temp Test (G), which starts with G equal to one (G=1), being Min Temp Test (1) equal to Max Temp Test (T); where the system in operation is increased to its maximum Differential Pressure of the hydraulic pump (Max DP Test (K)), where it is validated that the fluid in the hydraulic system pump is at its maximum operating temperature (Min Temp Test (G)), and the hydraulic system is kept in operation for a predetermined period of time, where if the development of the hydraulic system complies with the required functionality, and if it is technically possible and it is considered necessary to decrease the temperature, the test is stopped and a new G is established, equal to G plus one (G=G+1); and a temperature decrease technique is selected, implemented and a new maximum operating temperature of the fluid in the hydraulic system pump is predetermined (Min Temp Test (G)), where the new maximum operating temperature of the fluid in the hydraulic system pump will always be lower than the maximum operation of the previous test (Min Temp Test (G−1)), where the test will be repeated until the development of the hydraulic system does not meet the required functionality and it is not technically possible and it is not considered necessary to decrease the temperature, for which upon failure to comply with any of the above, the test is stopped and it is established that the development of the hydraulic system meets the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)) and a minimum operating temperature of the fluid in the hydraulic system pump (Min Temp Test (G−1)), and with a maximum Differential Pressure (Max DP Test (K)) of the hydraulic pump in the hydraulic system; where and based on the results obtained from this method, a maximum value of the operating temperature of the fluid in the hydraulic system pump is determined and the selected temperature reduction technique is implemented; if based on the results obtained from this method, a new maximum value of Differential Pressure of the pump in the hydraulic system is determined, then the technical modifications are implemented in the pump to comply with the determined Differential Pressure, through the decrease of RPM of the hydraulic pump, the above using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9; if the development of the hydraulic system meets the required functionality but it is not technically possible and it is not considered necessary to decrease the temperature, the test is stopped and it is established that the development of the hydraulic system meets the required functionality and the hydraulic pump can operate in the hydraulic system permanently without gaseous cavitation with the established hydraulic fluid, with a maximum operating temperature of the fluid in the hydraulic system pump (Max Temp Test (T)) and with a maximum Differential Pressure (Max DP Test (K)) of the hydraulic pump in the hydraulic system; where and based on the results obtained from this method, a maximum value of the operating temperature of the fluid in the hydraulic system pump is determined and the selected temperature reduction technique is implemented; if based on the results obtained from this method, a new maximum value of Differential Pressure of the pump in the hydraulic system is determined, then the technical modifications are implemented in the pump to comply with the determined Differential Pressure, through the decrease of RPM of the hydraulic pump, the above using the formulas of transmission of motion ratio, for which a reduction of the RPM is established in a ratio of 2 to a range of 0.5 to 1.9.

Priority Claims (1)

Continuity (1)

References Cited (18)