Combustion engine with at least one camshaft which can be shifte

Details Combustion engine with at least one camshaft which can be shifte Combustion engine with at least one camshaft which can be shifte

1993-07-09

1994-03-01

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9018, 74568R, F01L 134

Patent

active

052898067

ABSTRACT:
To permit axial shifting of a camshaft dependent on its angle of rotation, a shifting device is used which includes a shifting profile made up of two guide grooves which are configured as oppositely oriented helixes and end in ring-shaped idling grooves, and further includes an engaging element which may be introduced into the guide grooves by an activating element.

REFERENCES:
patent: 3112739 (1963-12-01), Peras
patent: 3730150 (1973-05-01), Codner, Jr.
patent: 4352344 (1982-10-01), Aoyama et al.
patent: 4516542 (1985-05-01), Aoyama et al.
patent: 4570581 (1986-02-01), Titolo
patent: 4643141 (1987-02-01), Bledsoe
patent: 4753198 (1988-06-01), Heath

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