Abstract: Various embodiments of systems and methods related to controlling oil injection for piston cooling in an engine are disclosed. In one embodiment, a method includes during an engine cold start event, enabling oil injection onto a piston of an engine, disabling oil injection after the engine cold start event, and re-enabling oil injection after the engine cold start event based on a first operating parameter.

Abstract: An engine cooling system and method for operating the engine cooling system is disclosed. In one example, engine oil is sprayed on to a piston via piston cooling jets. The approach judges whether or not to operate the piston cooling jets based on a benefit assessment. The approaches may be suitable for systems that include a variable oil pump.

Abstract: Various embodiments of systems and methods related to controlling oil injection for piston cooling in an engine are disclosed. In one embodiment, a method includes during an engine cold start event, enabling oil injection onto a piston of an engine, disabling oil injection after the engine cold start event, and re-enabling oil injection after the engine cold start event based on a first operating parameter.

Abstract: Various embodiments of systems and methods related to controlling oil injection for piston cooling in an engine are disclosed. In one embodiment, a method includes during an engine cold start event, enabling oil injection onto a piston of an engine, disabling oil injection after the engine cold start event, and re-enabling oil injection after the engine cold start event based on a first operating parameter.

Abstract: An engine cooling system and method for operating the engine cooling system is disclosed. In one example, engine oil is sprayed on to a piston via piston cooling jets. The approach judges whether or not to operate the piston cooling jets based on a benefit assessment.

Abstract: Various embodiments of systems and methods related to controlling oil injection for piston cooling in an engine are disclosed. In one embodiment, a method includes during an engine cold start event, enabling oil injection onto a piston of an engine, disabling oil injection after the engine cold start event, and re-enabling oil injection after the engine cold start event based on a first operating parameter.

Abstract: A system in an engine is provided. The system includes a piston spraying conduit including an inlet in fluidic communication with an oil reservoir, a nozzle in fluidic communication with the piston spraying conduit, the nozzle directing an oil spray toward an exterior surface of a piston positioned within a combustion chamber, and a heat pipe transferring heat from an evaporator section to the condenser section, the evaporator section coupled to the piston spraying conduit. In this way, more effective piston cooling is provided while maintaining lubrication effectiveness.

Abstract: Systems and methods for delivering oil to an engine are provided herein. According to one embodiment, the oil delivery system includes an oil supply, a feeder passage fluidically coupled to the oil supply and a cylinder head, the feeder passage coupled to a pump and a filter positioned downstream from the pump. The oil delivery system further includes a squirter passage in fluidic communication with a plurality of piston squirters and the feeder passage at a position between the pump and the filter. In this way, less-filtered oil is selectively routed through a cooling circuit to reduce engine warm-up time.

Abstract: Systems and methods for delivering oil to an engine are provided herein. According to one embodiment, the oil delivery system includes an oil supply, a feeder passage fluidically coupled to the oil supply and a cylinder head, the feeder passage coupled to a pump and a filter positioned downstream from the pump. The oil delivery system further includes a squirter passage in fluidic communication with a plurality of piston squirters and the feeder passage at a position between the pump and the filter. In this way, less-filtered oil is selectively routed through a cooling circuit to reduce engine warm-up time.

Abstract: The present invention comprises an oil system for supplying and controlling oil flow in an internal combustion engine having a variable camshaft timing (VCT) device, comprising a pressurized oil supply providing lubricating oil to the engine and the variable cam timing device and an oil circuit connecting the oil pump with the VCT and a main oil gallery of the engine via a valve apparatus. The valve apparatus responds to oil pressure near the outlet of the oil pump so that oil flows to the main oil gallery when oil pressure is above a predetermined pressure. When the VCT requests oil flow, oil pressure in the system drops. If the pressure drops below the predetermined pressure, the valve apparatus causes a reduction in flow to the main gallery.

Abstract: The present invention comprises an oil system for supplying and controlling oil flow in an internal combustion engine having a variable camshaft timing (VCT) device, comprising a pressurized oil supply providing lubricating oil to the engine and the variable cam timing device and an oil circuit connecting the oil pump with the VCT and a main oil gallery of the engine via a valve apparatus. The valve apparatus responds to oil pressure near the outlet of the oil pump so that oil flows to the main oil gallery when oil pressure is above a predetermined pressure. When the VCT requests oil flow, oil pressure in the system drops. If the pressure drops below the predetermined pressure, the valve apparatus causes a reduction in flow to the main gallery.