Force transmitting arrangement for a valve drive of an...

Details Force transmitting arrangement for a valve drive of an... Force transmitting arrangement for a valve drive of an...

2006-07-14

2009-11-03

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Tappet

C123S090520, C123S090590

Reexamination Certificate

active

07610886

ABSTRACT:
A force transmitting device (4) for a valve drive (1) of an internal combustion engine (2) with a hydraulic valve lash compensating device (6) is provided. The force transmitting device (4) has a hollow cylindrical compensating piston (13), which on one end defines a working chamber (35) of the valve lash compensating device (6) and on the other end encloses an internal hydraulic medium reservoir (15) used to supply the working chamber (35). This is connected to a hydraulic medium supply (16) of the internal combustion engine (2) and is protected from a return flow of hydraulic medium in the direction of the hydraulic medium supply (16) by means of a valve plate (26), which can be pressurized and which can move axially, in that the valve plate (26) interacts in a sealing way with an axial annular surface (28) of the compensating piston (13) for a non-pressurized hydraulic medium supply (16). Here, the valve plate (26) should have one or more openings (34), which connect the internal hydraulic medium reservoir (15) to an external hydraulic medium reservoir (31) for a non-pressurized hydraulic medium supply (16).

REFERENCES:
patent: 4231267 (1980-11-01), Van Slooten
patent: 4462364 (1984-07-01), Kodama
patent: 2002/0096136 (2002-07-01), Spath et al.
patent: 19754016 (1999-06-01), None
patent: 10342642 (2005-05-01), None

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