Patent ID: 6959677

Claim:
A hydraulic support element for a valve train of an internal combustion engine, said support element comprising a hollow cylindrical housing that can be installed with an outer peripheral surface in a reception of a cylinder head of the internal combustion engine and receives an axially displaceable pressure piston in a bore, a head of said pressure piston extending beyond an edge of the housing, a high-pressure chamber for a hydraulic medium being formed between a front end of the pressure piston oriented away from the head and an underside of the housing, which high-pressure chamber can be closed by a one-way valve that is fixed on said front end and opens in direction of the high-pressure chamber that is supplied with hydraulic medium through the one-way valve from a reservoir enclosed by the pressure piston, said housing comprising at least one radial opening for the hydraulic medium from the cylinder head, said radial opening being in fluid communication radially inwards with at least one passage to the reservoir in the pressure piston, said passage being situated axially above the radial opening of the housing, wherein, a) on the one hand, a fractional quantity of hydraulic medium situated at least directly in front of the one-way valve is separated by a separating means from hydraulic medium entering through the passage, and, b) on the other hand, the pressure piston comprises at least one vent bore situated axially above the passage but within the housing.