Back to results
US 10,208,687 B2Granted
System and method for operating an engine oil pump
AssigneeFord Global Technologies, LLC
InventorsKaren Willard, John Eric Rollinger, Robert Milton, Jeremy L. Russell
Life of this patent
Estimating the term…
Abstract
Systems and methods for operating an engine with an oil pump that supplies engine oil to various oil consumers in an engine are presented. In one example, a displacement of a variable displacement engine oil pump is adjusted to provide sufficient oil pressure throughout the engine, but low enough to conserve fuel.
Claims17
A method for operating an engine, comprising:
- receiving engine operating conditions to a controller;
- adjusting oil flow through piston cooling jets to provide a static pressure increase via the controller in response to a maximum value of a plurality of minimum oil gallery pressures to operate a plurality of engine oil consumers and a request to deactivate one or more engine poppet valves;
- and
- adjusting the oil flow through the piston cooling jets to provide a dynamic pressure increase in response to the request to deactivate the one or more engine poppet valves.
1 more element
A method for operating an engine, comprising:
- increasing oil pressure supplied to an oil gallery via control of piston cooling jets in response to a request to deactivate one or more engine poppet valves;
- and
- decreasing oil pressure supplied to the oil gallery via control of the piston cooling jets in response to the one or more engine poppet valves being deactivated.
A vehicle system, comprising:
- an engine including one or more deactivating cylinder poppet valves and an oil pressure control device;
- and
- a controller including non-transitory executable instructions, which when executed by the controller, cause the controller to increase oil pressure supplied to an oil gallery via the oil pressure control device in response to a request to deactivate the one or more deactivating cylinder poppet valves, and cause the controller to decrease oil pressure supplied to the oil gallery via the oil pressure control device in response to the one or more deactivating cylinder poppet valves being deactivated, where the oil pressure control device is a piston cooling jet.
Dependencies are inferred from the claim text.