Variable phase drive coupling

Details Variable phase drive coupling Variable phase drive coupling

2006-10-19

2008-11-04

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C464S160000

Reexamination Certificate

active

07444968

ABSTRACT:
A variable phase drive coupling is described for providing drive from an engine crankshaft to two sets of cams. The drive coupling comprising a drive member12connectable for rotation with the engine crankshaft and two driven members18, 20each connectable with a respective one of the two sets of cams. In the invention, the angular relationship of each of the driven members18, 20is independently variable relative to the drive member12under the action of camshaft torque reversals.

REFERENCES:
patent: 5002023 (1991-03-01), Butterfield et al.
patent: 6725817 (2004-04-01), Methley et al.
patent: 7000580 (2006-02-01), Smith et al.

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