Support structure for camshaft on cylinder head of internal combustion engine
By designing radially staggered recesses and mirror-symmetrical through holes on the camshaft, the complexity of camshaft installation was solved, the installation process was simplified, and the weight and cost of the cylinder head cover were reduced.
CN115917123BActive Publication Date: 2026-07-03MERCEDES BENZ GRP
Patent Information
- Application Number
- CN202180038685.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-06-02
- Filing Date
- 2021-05-19
- Publication Date
- 2026-07-03
- Estimated Expiration
- 2041-05-19
AI Technical Summary
Technical Problem
The existing camshaft support structure on the cylinder head of an internal combustion engine is complicated to install, resulting in weakened cylinder head cover strength and increased weight.
Method used
The camshaft is fixed by using recesses instead of double flat surfaces. The recesses are arranged radially offset, and the wall thickness and height are designed differently according to the load. The through holes of the cylinder head cover are also designed to be small and mirror symmetrical to avoid excessive weakening of the cylinder head cover.
Benefits of technology
It simplifies the installation process, reduces the weight and structural space requirements of the cylinder head cover, and lowers costs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115917123B_ABST
Abstract
The present invention relates to a camshaft (12, 14) for an internal combustion engine having a recess (20) formed in the circumferential surface (18) on the outer periphery of the camshaft (12, 14) and which is itself open to the outside in the radial direction of the camshaft (12, 14). A tool can be inserted into the recess and thereby placed in a form-locking interaction with the camshaft (12, 14), thereby the camshaft (12, 14) can be fixed in a rotation-resistant manner by means of the tool. The recess (20) is arranged radially offset from the center (M) of the camshaft (12, 14).
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Citation Information
Patent Citations
Camshaft and associated camshaft
DE102010024721A1
Marking device for cooperation with at least one camshaft of an internal combustion engine, cover for storing the marking device on the internal combustion engine and use of the marking device when setting a control drive
DE202015008502U1
Device for installing and positioning a camshaft of an engine
DE202015105757U1