Pump assembly for internal combustion engine
In one exemplary embodiment of the invention, an assembly for an internal combustion engine includes a crankshaft, a drive mechanism coupled to the crankshaft and an oil pump actuated by the drive mechanism. The engine also includes a vacuum pump actuated by the drive mechanism, wherein the drive mechanism, oil pump and vacuum pump are disposed in an oil pan and a housing disposed between the oil pump and vacuum pump configured to enclose at least a portion the drive mechanism and restrict a flow of oil from the oil pan into the housing to reduce aeration of the oil during operation of the internal combustion engine.
1. An assembly for an internal combustion engine, comprising:
a crankshaft;
a drive mechanism coupled to the crankshaft;
an oil pump actuated by the drive mechanism;
a vacuum pump actuated by the drive mechanism, wherein the drive mechanism, oil pump and vacuum pump are disposed in an oil pan; and
a housing disposed between the oil pump and vacuum pump configured to enclose at least a portion the drive mechanism and restrict a flow of oil from the oil pan into the housing to reduce aeration of the oil by the drive mechanism during operation of the internal combustion engine, the housing including a radial outer wall coupled to the radial outer wall and one of the vacuum pump and the oil pump and a lateral wall coupled to the other of the vacuum pump and the oil pump.
2. The assembly of claim 1 , wherein the drive mechanism comprises a driving gear and a driven gear, wherein the driven gear actuates the vacuum pump and the oil pump.
3. The assembly of claim 1 , wherein the drive mechanism, oil pump and vacuum pump are disposed in the oil pan arranged at a lower portion of the internal combustion engine.
4. The assembly of claim 1 , wherein the housing encloses a lower portion of the drive mechanism to restrict the flow of oil from the oil pan into the mechanism.
5. The assembly of claim 1 , comprising an oil distribution housing coupled to the oil pump configured to direct a pressurized oil to selected locations in the internal combustion engine.
6. The assembly of claim 1 , wherein the assembly is configured to be placed in a spark ignition gasoline engine.
7. The assembly of claim 1 , wherein the radial outer wall coupled with the vacuum pump and the lateral wall coupled with the oil pump.
8. A pump assembly for an internal combustion engine, comprising:
a gear mechanism;
an oil pump actuated by the gear mechanism;
a vacuum pump actuated by the gear mechanism, wherein the gear mechanism, oil pump and vacuum pump are disposed beneath the internal combustion engine; and
a housing disposed between the oil pump and vacuum pump configured to enclose a portion the drive mechanism and restrict a flow of oil into the housing to reduce aeration of the oil during operation of the internal combustion engine, the housing including a radial outer wall coupled to one of the vacuum pump and the oil pump and a lateral wall coupled to the radial outer wall and the other of the vacuum pump and the oil pump.
9. The assembly of claim 8 , wherein the gear mechanism comprises a driving gear and a driven gear, wherein the driven gear actuates the vacuum pump and the oil pump.
10. The assembly of claim 8 , wherein the gear mechanism, oil pump and vacuum pump are disposed in an oil pan arranged at a lower portion of the internal combustion engine.
11. The assembly of claim 8 , wherein the housing encloses a lower portion of the drive mechanism to restrict the flow of oil from an oil pan into the mechanism.
12. The assembly of claim 8 , comprising an oil distribution housing coupled to the oil pump configured to direct a pressurized oil to selected locations in the internal combustion engine.
13. The assembly of claim 8 , wherein the assembly is configured to be placed in a spark ignition gasoline engine.
14. The assembly of claim 8 , wherein the radial outer wall coupled with the vacuum pump and the lateral wall coupled with the oil pump.
15. An internal combustion engine, comprising:
a crankshaft;
a drive mechanism coupled to the crankshaft;
an oil pump actuated by the drive mechanism;
a vacuum pump actuated by the drive mechanism; and
a housing disposed adjacent to the oil pump configured to enclose at least a portion the drive mechanism and restrict a flow of oil from the oil pan into the housing to reduce aeration of the oil during operation of the internal combustion engine, the housing including a radial outer wall and coupled to one of the vacuum pump the oil pump and a lateral wall coupled to the radial outer wall and the other of the vacuum pump and oil pump.
16. The engine of claim 15 , wherein the housing and drive mechanism are disposed between the oil pump and vacuum pump.
17. The engine of claim 15 , wherein the radial outer wall coupled with the vacuum pump and the lateral wall coupled with the oil pump.