Pressure medium sealing in a camshaft adjusting device

Details Pressure medium sealing in a camshaft adjusting device Pressure medium sealing in a camshaft adjusting device

1996-12-05

1998-03-17

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 123 9037, 74568R, 464 2, F01L 1344

Patent

active

057275084

ABSTRACT:
A device for the continuous variation of a relative angular position between a crankshaft and a camshaft of an internal combustion engine comprising a drive element (2) driven by the crankshaft of the internal combustion engine through a traction means, a sliding sleeve (7) which is positively locked by a first gearing (8, 9) to the drive element (2) and by a second gearing (10, 11) to a driven element (13), and an adjusting piston (6) which is fixed on the sliding sleeve (7) and guided in a housing (3) to axially delimit two pressure chambers (14, 15) which are sealed from each other by a sealing arrangement whereby a radially inward oriented sealing of the sliding sleeve (7), is achieved by providing a sealing disc (17) of continuous configuration which bears against an inner wall (19) of the sliding sleeve (7).

REFERENCES:
patent: 5090365 (1992-02-01), Hotta et al.
patent: 5201289 (1993-04-01), Imai
patent: 5309873 (1994-05-01), Suga et al.
patent: 5377639 (1995-01-01), Nakadouzono et al.
patent: 5588404 (1996-12-01), Lichti et al.

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