Patent ID: 6988474

Claim:
A hydraulic cam follower for a valve train of an internal combustion engine, said cam follower being suitable for installation in driving relationship between at least one cam and a tappet push rod, said cam follower comprising a hollow cylindrical housing that is plugged together with an axially relatively displaceable pressure piston, one front end of the housing comprising a cam contacting element and an end face of the pressure piston oriented away from said front end comprising a support for the tappet push rod, the pressure piston comprising a reservoir for hydraulic medium, which reservoir serves to supply hydraulic medium to a high pressure chamber situated between a further end face of the pressure piston and said one front end of the housing, said reservoir being intersected by at least one passage for inlet of hydraulic medium, and the support comprising an axial passage for conveying hydraulic medium coming from the reservoir to the tappet push rod, wherein a) axially above the passage in the reservoir is arranged an oil distributing disk that is slightly displaceable in axial direction between an underside of the support and a stop of a bore of the reservoir; b) an annular gap is arranged between the bore and an edge of the oil distributing disk; c) on at least one of following elements: the underside of the support and at least an upper side of the oil distributing disk, are arranged projections that serve as spacers from an opposing one of said elements to permit a throttled transfer of hydraulic medium from the reservoir via the annular gap along the upper side of the oil distributing disk into the axial passage.