Device for adjusting the phase angle of a camshaft

Details Device for adjusting the phase angle of a camshaft Device for adjusting the phase angle of a camshaft

1998-10-21

2000-10-31

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 74568R, 464 2, F01L 1344

Patent

active

061386235

ABSTRACT:
A device for adjusting the phase angle of a camshaft of an internal combustion engine relative to the camshaft driving gear includes a hydraulic adjusting element which is connected with both a member supporting the drive gear and a member rigidly connected to the camshaft. Simple and reliable adjustment of the camshaft phase is obtained by providing the hydraulic adjusting element with a hydraulic pumping member which is driven by the drive gear, and a driving member connected to the camshaft, which is hydraulically driven by the pumping member, the outlet end of the pumping member being flow-connected to the inlet end of the driving member and the flow volume and/or pressure of the working fluid delivered from the pumping member to the driving member being regulated.

REFERENCES:
patent: 3103209 (1963-09-01), Bekkala et al.
patent: 4091776 (1978-05-01), Clemens et al.
patent: 4627825 (1986-12-01), Bruss et al.
patent: 5189999 (1993-03-01), Thoma
patent: 5247914 (1993-09-01), Imai et al.
patent: 5293845 (1994-03-01), Yamazaki et al.
patent: 5329890 (1994-07-01), Mueller

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