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US 10,590,830 B1Granted
Internal combustion engine including piston cooling jets
AssigneeGM Global Technology Operations LLC
InventorsGiorgio Candela, Fabio Numidi
Life of this patent
Estimating the term…
Abstract
An internal combustion engine (ICE) including an engine block including a plurality of cylinders, a piston arranged in each of the plurality of cylinders, and a piston cooling jet (PCJ) mounted to direct a flow of coolant at the piston in each of the plurality of cylinders. The PCJ includes an inlet, an outlet, and a controlled flow passage allowing a substantially continuous flow of coolant to pass from the inlet to the outlet.
Claims14
An internal combustion engine (ICE) comprising:
- an engine block including a plurality of cylinders;
- a piston arranged in each of the plurality of cylinders;
- and
- a piston cooling jet (PCJ) mounted to direct a flow of coolant at the piston in each of the plurality of cylinders, the PCJ including an inlet, an outlet, an actuator member shiftable between a closed configuration substantially blocking flow through the outlet and an open configuration allowing flow through the outlet, and a controlled flow passage provided at the actuator member, the controlled flow passage allowing a substantially continuous flow of coolant to pass from the inlet to the outlet when the actuator member is in each of the open configuration and the closed configuration.
1 more element
A method of cooling a piston in an internal combustion engine (ICE) comprising:
- activating a controller to shift an actuator member from a closed configuration to an open configuration to deliver a pulse of coolant to a piston cooling jet (PCJ);
- directing the pulse of coolant onto the piston;
- and
- passing a continuous flow of coolant to the piston through the PCJ when the actuator member is in the closed configuration.
1 more element
Dependencies are inferred from the claim text.