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US 7,255,078 B2Granted
Resin cylinder head cover
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazuya Yoshijima, Akihiro Osaki, Hidemi Kato
Life of this patent
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Abstract
A resin cylinder head cover for an internal combustion engine includes a resin cover main body and a resin oil passage that is integrated with the cover main body. As a result, the problems of increase in the number of components and deterioration of the oil sealing performance in a resin cylinder head cover are solved.
Claims15
A resin cylinder head cover for an internal combustion engine, comprising:
- a resin cover main body;
- and
- a resin oil passage that is integrated with the cover main body, wherein at least part of the oil passage is delineated by and extends within a projecting portion of a planar surface of the cover main body, the projecting portion protruding from the planar surface, and the projecting portion and the oil passage extend along a portion of the planar surface in a direction parallel to the portion of the planar surface along which the projecting portion and the oil passage extend.
A resin cylinder head cover for an internal combustion engine, comprising:
- a resin cover main body;
- and
- a resin main oil passage that is integrated with the cover main body, wherein at least part of the oil passage is delineated by and extends within a projecting portion of a planar surface of the cover main body, the projecting portion protruding from the planar surface, and the projecting portion and the oil passage extend along a portion of the planar surface in a direction parallel to the portion of the planar surface along which the the projecting portion and the oil passage extend, and wherein
- an oil control valve is attached to the cover, the control valve controls hydraulic pressure supplied to a variable valve actuation mechanism of the internal combustion engine;
- and
- pressurized oil is supplied to the oil control valve through the main oil passage, the main oil passage being connected to a connector oil passage in a hydraulic connector projecting from an inner surface of the cover main body, the connector oil passage being connected to a hydraulic pressure supplying portion provided in a cylinder head of the engine.
3 more elements
Dependencies are inferred from the claim text.