Camshaft phase shifting mechanism

Details Camshaft phase shifting mechanism Camshaft phase shifting mechanism

2006-05-30

2006-05-30

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090110, C123S090120

Reexamination Certificate

active

07051688

ABSTRACT:
A hydraulic phase shifting mechanism is described for an engine camshaft subjected to torque fluctuations during operation. The mechanism employs a magnetorheological fluid as a hydraulic pressure medium and is controlled by selective application of a magnetic field to vary the flow properties of the magnetorheological fluid.

REFERENCES:
patent: 4920929 (1990-05-01), Bishop
patent: 5056477 (1991-10-01), Linder et al.
patent: 6439181 (2002-08-01), Fujiwaki et al.

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