Dynamic engine oil pickup system
AssigneeGM Global Technology Operations LLC
InventorsBryan K. Pryor, David R. Staley, Bryce E. Mazzola
Life of this patent
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Abstract
A dynamic engine oil pickup system is disclosed. The dynamic engine oil pickup system includes a scavenge pump and a pickup tube assembly in fluid communication with the scavenge pump. The pickup tube assembly includes at least two oil pickup portions operable to pickup engine oil from at least two different oil pickup locations and a flow control operable to control a flow of engine oil between the at least two different oil pickup locations and the scavenge pump. The flow control includes a suction valve, and movement of the suction valve is controlled by selectively applying a high pressure oil to a head of the suction valve.
Claims17
A dynamic engine oil pickup system comprising:
- a scavenge pump;
- a dynamic engine oil pickup tube assembly in fluid communication with the scavenge pump, wherein the dynamic engine oil pickup tube assembly includes a scavenging manifold section in fluid communication with the scavenge pump, and at least a first oil pickup portion and a second oil pickup portion each extending outward from the scavenging manifold section;
- wherein the first oil pickup portion is operable to pickup engine oil from only a first oil pickup location;
- wherein the second oil pickup portion is operable to pickup engine oil from only a second oil pickup location that is different from the first oil pickup location;
- and
- a suction valve disposed within the scavenging manifold section and moveable from a first position to only a second position, wherein movement of the suction valve is controlled by selectively applying a high pressure oil to a head of the suction valve;
- wherein the first oil pickup portion is not disposed in fluid communication with the second oil pickup portion;
- wherein the first oil pickup portion is not disposed in fluid communication with the second oil pickup portion when the suction valve is disposed in the first position;
- wherein the second oil pickup portion is not disposed in fluid communication with the first oil pickup portion when the suction valve is disposed in the second position.
A dynamic engine oil pickup tube assembly comprising:
- a scavenging manifold section;
- a first oil pickup portion extending outward from the scavenging manifold section and operable to pickup engine oil from only a first oil pickup location;
- a second oil pickup portion extending outward from the scavenging manifold section and operable to pickup engine oil from only a second oil pickup location that is different from the first oil pickup location;
- and
- a suction valve disposed within the scavenging manifold section and moveable from a first position to only a second position, wherein movement of the suction valve is controlled by selectively applying a high pressure oil to a head of the suction valve;
- wherein the first oil pickup portion is not disposed in fluid communication with the second oil pickup portion;
- wherein the first oil pickup portion is not disposed in fluid communication with the second oil pickup portion when the suction valve is disposed in the first position;
- wherein the second oil pickup portion is not disposed in fluid communication with the first oil pickup portion when the suction valve is disposed in the second position.
An internal combustion engine including a dynamic engine oil pickup system, the dynamic engine oil pickup system comprising:
- a scavenge pump;
- a dynamic engine oil pickup tube assembly in fluid communication with the scavenge pump, wherein the dynamic engine oil pickup tube assembly includes a scavenging manifold section in fluid communication with the scavenge pump, and at least a first oil pickup portion and a second oil pickup portion each extending outward from the scavenging manifold section;
- wherein the first oil pickup portion is operable to pickup engine oil from only a first oil pickup location;
- wherein the second oil pickup portion is operable to pickup engine oil from only a second oil pickup location that is different from the first oil pickup location;
- and
- a suction valve disposed within the scavenging manifold section and moveable from a first position to only a second position, wherein movement of the suction valve is controlled by selectively applying a high pressure oil to a head of the suction valve;
- wherein the first oil pickup portion is not disposed in fluid communication with the second oil pickup portion;
- wherein the first oil pickup portion is not disposed in fluid communication with the second oil pickup portion when the suction valve is disposed in the first position;
- wherein the second oil pickup portion is not disposed in fluid communication with the first oil pickup portion when the suction valve is disposed in the second position.
Dependencies are inferred from the claim text.