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US 2016/0102642 A1Published application
System and method for lubricating a fuel pump
AssigneeFord Global Technologies, LLC
InventorsGopichandra Surnilla, Joseph Basmaji, Ross Dykstra Pursifull, Larry Dean Elie, Richard E. Soltis, David Karl Bidner
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Abstract
Systems and methods for diagnosing and operating an engine with a fuel pump that supplies fuel to a fuel injector that may be temporarily deactivated are described. In one example, injection of fuel may commence in response to a level of lubrication of a fuel pump. The system and methods may extend fuel pump life in systems where fuel injection may be deactivated.
Claims20
A method for operating a pump in a system, comprising:
- solely mechanically driving a movable structural component of the pump for supplying a fluid;
- displacing the fluid from the pump from a stationary structural component of the fuel pump housing the movable structural component;
- diagnosing operation of the pump in response to an electrical property between the movable structural component and the stationary structural component via measurement of the electrical property by a controller;
- and
- adjusting an actuator of the system in response to the diagnosed operation.
2 more elements
A method for operating a fuel pump, comprising:
- reducing flow through the fuel pump in response to an engine operating condition;
- and
- increasing flow through the fuel pump via adjusting a position of a valve external to the fuel pump, the fuel flow increased in response to an electrical property between a motive force component of the fuel pump and a second component of the fuel pump.
A fuel system, comprising:
- an engine;
- a first fuel pump driven via the engine, the first fuel pump including a motive force component and a second component;
- a second fuel pump;
- and
- a controller, the controller including instructions for controlling flow through the first fuel pump responsive to an electrical property between the motive force component and the second component, the controller including further instructions for adjusting a fuel amount supplied to the engine via the second fuel pump responsive to an amount of fuel supplied to the engine via the first fuel pump.
2 more elements
Dependencies are inferred from the claim text.