Variable valve timing control system oil passage and timing cover for automobile engine
A technology of automobile engine and timing cover, which is applied in the directions of engine components, machines/engines, non-mechanically actuated valves, etc., can solve the difficulty of casting the cylinder block of the engine and increase the difficulty of machining, and increase the difficulty of casting the cylinder head. Difficulty, the overall volume of the engine and other problems, to reduce the risk of design and development, reduce the difficulty of machining, compact structure
Active Publication Date: 2013-10-30
HAIMA AUTOMOBILE CO LTD +2
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Problems solved by technology
[0005] If the above-mentioned method 1 is adopted, the number of components to be assembled will be large, resulting in the overall volume of the engine being too large, the structure not compact, and the process complicated;
[0006] If the above method 2 is adopted, the difficulty of casting and machining of the cylinder block of the engine will increase, and the setting of the OCV on the cylinder head will also increase the difficulty of casting and machining of the cylinder head
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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0032] In the present invention, the VVT main oil passage of the VVT oil passage is neither an independent structure nor an integrally formed structure with the cylinder block, but is integrally cast with the timing cover of the engine; at the same time, the OCV is neither connected through an external It is not installed on the cylinder head, but on the timing cover.
[0033] see first figure 1 , the timing case 3 has a case body 30 and a VVT main oil passage 40 integrally cast with the case body 30 . The VVT main oil passage 40 is attached to the outer surface 31 of the casing body 30 and extends, and the inner surface 32 of the casing body 30 faces the cylinder head 2 and the cylinder block 1 assembled up and down, and is used to realize the c...
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The invention discloses a variable valve timing (VVT) control system oil passage for an automobile engine and a timing cover integrated with the VVT control system oil passage for the automobile engine. In the invention, the VVT control system oil passage comprises a VVT main oil gallery integrally and an oil pressure control valve; the VVT main oil gallery is cast with the timing cover and stretched by being attached on an outer surface of the timing cover; one end of the VVT main oil gallery is bent towards the timing cover and communicated with an oil supply passage oil outlet of a cylinder after being penetrated to an inner surface of the timing cover, and the other end of the VVT main oil gallery is bent towards the timing cover and communicated to a mounting hole arranged on a side surface of the timing cover; and the oil pressure control valve is mounted in the mounting hole and communicated with the other end of the VVT main oil gallery, a VVT inlet oil supply passage and a decompression slot of a cylinder cover and a VVT outlet oil supply passage and a decompression slot of the cylinder cover, so that the oil pressure in the VVT inlet oil supply passage and the oil pressure in the VVT outlet oil supply passage are controlled.
Description
technical field [0001] The invention relates to a variable valve timing control system (VVT) technology of an automobile engine, in particular to a VVT oil passage of an automobile engine and a timing cover of an automobile engine integrally formed with the VVT oil passage. Background technique [0002] The VVT oil circuit in the prior art is usually set in the following two ways: [0003] Method 1, set up an independent VVT main oil passage structure, and connect the oil pressure control valve (OCV) and the independent VVT main oil passage structure to the engine cylinder in an external manner; [0004] Mode 2, the VVT main oil passage and the cylinder block of the engine are integrally cast, and the OCV is set on the cylinder head of the engine. [0005] If the above-mentioned method 1 is adopted, the number of components to be assembled will be large, resulting in the overall volume of the engine being too large, the structure not compact, and the process complicat...
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IPC IPC(8): F01L9/02F01L1/34F02F7/00
Inventor 景柱李伟韬张会文闵聃谌晓华邱鹏颜景操
Owner HAIMA AUTOMOBILE CO LTD