US 9,708,940 B2Granted

Internal combustion engine with a camshaft phaser

AssigneeDelphi Technologies, Inc.

InventorsPascal David, Pierre Kimus, Sebastien Mafrica

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Abstract

An internal combustion engine includes a crankshaft rotatable about a crankshaft axis; a camshaft rotatable by the crankshaft about a camshaft axis; an engine cover defining an engine cover volume within the internal combustion engine; a drive member disposed within the engine cover volume which transfers rotational motion from the crankshaft to the camshaft; a camshaft phaser disposed within the engine cover volume which controllably varies the phase relationship between the crankshaft and the camshaft; an actuator which operates the camshaft phaser; and an actuator mount within the engine cover volume which mounts the actuator structurally independent of the engine cover, thereby allowing removal of the engine cover independently of the actuator.

Claims17

Dependent claims

An internal combustion engine having a crankshaft rotatable about a crankshaft axis and a camshaft rotatable by said crankshaft about a camshaft axis, said internal combustion engine comprising:

an engine cover defining an engine cover volume within said internal combustion engine;
a drive member disposed within said engine cover volume which transfers rotational motion from said crankshaft to said camshaft;
a camshaft phaser disposed within said engine cover volume which controllably varies the phase relationship between said crankshaft and said camshaft;
an actuator which operates said camshaft phaser;
and
an actuator mount within said engine cover volume which mounts said actuator structurally independent of said engine cover, thereby allowing removal of said engine cover independently of said actuator;
wherein said actuator is located partially within said engine cover volume;
and
wherein said engine cover includes an engine cover aperture extending through a wall of said engine cover such that said actuator extends through said engine cover aperture outside of said engine cover volume.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/813,381Filed 30 Jul 2015 · us provisional application
Priority: 31 Jul 2014
Published: US 2016/0032790 A14 Feb 2016
Granted: 18 Jul 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

F01L 1/348
Changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear: by means acting on timing belts or chains
F01L 1/047
By means of cams, camshafts, cam discs, eccentrics or the like: camshafts
F01L 9/20
Valve-gear or valve arrangements actuated non-mechanically: by electric means
F02B 77/02
Component parts, details or accessories, not otherwise provided for: surface coverings of combustion-gas-swept parts