Patent ID: 7434557

Claim:
A hydraulic reverse spring valve clearance compensation element (abbreviation: RSHVA) for a valve train of an internal combustion engine comprising: a housing, which has a blind bore, in which a piston is guided with a tight sealing clearance; the piston comprises a lower piston part with a lower piston head, which together with the blind bore defines a high-pressure chamber, whilst a low-pressure chamber is situated above the lower piston head; the pressure chambers are connected by means of a central axial bore in the lower piston head, which is controlled by a control valve arranged on the underside of the lower piston head; the control valve comprises a control valve ball, upon which a control valve spring acts in the opening direction and the lift of which is limited by a lift-limiting stop of a valve ball cap, wherein temperature-sensitive means influencing the closing time of the control valve are provided, which lead to a closing time of the control valve that is largely independent of the lubricating oil temperature of the internal combustion engine.