Hydraulic cam follower

Details Hydraulic cam follower Hydraulic cam follower

2006-01-24

2006-01-24

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090390, C123S090160

Reexamination Certificate

active

06988474

ABSTRACT:
The invention proposes a cam follower (1) comprising a hydraulic clearance compensation device (27) from whose reservoir (8) a controlled and throttled supply of hydraulic medium to lubricating points of the abutting tappet push rod and the associated rocker arm is realized with the help of an oil distributing disk (12) that extends in the reservoir (8). Projections (19) configured, for example, as bulging formations (21), are arranged on an underside (13) of a support (7) for the tappet push rod. In the presence of hydraulic medium pressure, the oil distributing disk (12) is pressed against the projections (19) and enables a purposed and throttled transfer of hydraulic medium between its upper side (18) and the underside (13) into an axial passage (11) of the support (7).

REFERENCES:
patent: 6196175 (2001-03-01), Church
patent: 6497207 (2002-12-01), Spath et al.

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