Fluid dispensing unit having a circulation system and a method for circulating a fluid in a fluid dispensing unit
View Patent ↗A dispensing unit is provided having a circulation system for circulating a fluid in the dispensing unit. The circulation system includes a circulation circuit and a mechanism for circulating the fluid in the circulation circuit. By circulating the fluid, the fluid is counteracted from crystallizing. A method for circulating a fluid in a dispensing unit is also provided.
1. A dispensing unit having a circulation system circulating a fluid in the dispensing unit, the circulation system comprising:
a circulation circuit comprising a hose having a coaxially installed fluid channel, and a gauge block configured to control the fluid when the fluid is circulating through the hose and the fluid channel; and
a mechanism configured to circulate the fluid in the circulation circuit, such that the fluid is counteracted from crystallizing.
2. The dispensing unit according to claim 1 , wherein the circulation system further comprises a heating element configured to heat the fluid.
3. The dispensing unit according to claim 1 , wherein the circulation system further comprises a valve configured to control the fluid when the fluid is circulating through the hose and the fluid channel.
4. The dispensing unit according to claim 1 , wherein the circulation circuit comprises a hose, a nozzle, and a nozzle boot.
5. The dispensing unit according to claim 4 , wherein the nozzle is configured to attain a leak proof connection for fluid communication with the nozzle boot when inserted in the nozzle boot.
6. The dispensing unit according to claim 4 , wherein the circulation circuit further comprises a tube connected to the nozzle boot.
7. The dispensing unit according to claim 1 , wherein the circulation system further comprises a reservoir configured to hold the fluid, wherein the reservoir is connected to the circulation circuit.
8. The dispensing unit according to claim 1 , wherein the circulation system further comprises a temperature sensor connected to a control unit configured to control the mechanism configured to circulate the fluid.
9. The dispensing unit according to claim 2 , further comprising a control unit configured to control:
the mechanism configured to circulate the fluid; and
the heating element.
10. The dispensing unit according to claim 1 , wherein the circulation system further comprises a measurement device configured to measure the amount of circulated fluid.
11. The dispensing unit according to claim 1 , wherein the fluid is aqueous urea solution.
12. A method for circulating a fluid in a dispensing unit having a circulation system, the method comprising circulating the fluid in a circulation circuit of the circulation system with a pump such that the fluid is counteracted from crystallizing, wherein the circulation circuit comprises a hose having a coaxially installed fluid channel, and a gauge block configured to control the fluid when the fluid is circulated through the hose and the fluid channel.
13. The method according to claim 12 , further comprising heating the fluid with a heating element in the circulation system.
14. A dispensing unit having a circulation system for circulating a fluid in the dispensing unit, the circulation system comprising:
a circulation circuit comprising a hose, a nozzle, and a nozzle boot, wherein the nozzle is configured to attain a leak proof connection for fluid communication with the nozzle boot when inserted in the nozzle boot; and
a mechanism configured to circulate the fluid in the circulation circuit, such that the fluid is counteracted from crystallizing.
15. The dispensing unit according to claim 14 , wherein the circulation system further comprises a heating element configured to heat the fluid.
16. The dispensing unit according to claim 14 , wherein the circulation circuit comprises a hose having a coaxially installed fluid channel.
17. The dispensing unit according to claim 14 , wherein the circulation system further comprises a valve configured to control the fluid when the fluid is circulating through the hose and the fluid channel.
18. The dispensing unit according to claim 14 , wherein the circulation circuit further comprises a tube connected to the nozzle boot.
19. The dispensing unit according to claim 14 , wherein the circulation system further comprises a reservoir configured to hold the fluid, wherein the reservoir is connected to the circulation circuit.
20. The dispensing unit according to claim 14 , wherein the circulation system further comprises a temperature sensor connected to a control unit configured to control the mechanism configured to circulate the fluid.
21. The dispensing unit according to claim 14 , further comprising a control unit configured to control:
the mechanism configured to circulate the fluid; and
the heating element.
22. The dispensing unit according to claim 14 , wherein the circulation system further comprises a measurement device configured to measure the amount of circulated fluid.
23. The dispensing unit according to claim 14 , wherein the fluid is aqueous urea solution.
24. A method for circulating a fluid in a dispensing unit having a circulation system, the method comprising:
circulating the fluid in a circulation circuit of the circulation system with a pump such that the fluid is counteracted from crystallizing, wherein the circulation circuit comprises a hose, a nozzle, and a nozzle boot, and wherein the nozzle is configured to attain a leak proof connection for fluid communication with the nozzle boot when inserted in the nozzle boot.
25. The method according to claim 24 , further comprising heating the fluid with a heating element in the circulation system.