Roller cam follower

A technology of roller cams and moving parts, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as cost, and achieve the effects of reducing grinding work, fast passing time, and economical manufacturing
CN102588026AInactive Publication Date: 2012-07-18SCHAEFFLER TECH AG & CO KG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SCHAEFFLER TECH AG & CO KG
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The roller cam follower (1) comprises a hydraulic support unit (3) and a down or lateral cam shaft of an internal combustion engine. The roller cam follower is assembled from a roller shaft (2) for the stroke operation of a piston of a fuel high pressure pump and the hydraulic support unit. An independent claim is also included for a roller shaft has a support unit which is received in sections in a recess.
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Description

Technical field

[0001] The invention relates to a roller cam follower for reciprocating a rocker arm in an overhead valve mechanism of an internal combustion engine. The overhead valve mechanism has a camshaft located below or laterally above. Background technique

[0002] This roller cam follower is made by DE 36 38 202 figure 1 Shown in. This roller cam follower has a relatively large mass, which disadvantageously becomes a vibrating valve train mass. The cam roller is accommodated in the recess of the housing and thus determines its radial extension over almost the entire height of the housing. Since the housing is nearly extended over the entire axial extension of the roller cam follower, its outer peripheral surface must be completely finely ground, which is costly. In addition, it has been confirmed that the construction / manufacturing of the roller cam follower, especially in small batches, is very costly, and it is usually necessary to redesign the roller cam follower fo...

Claims

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