Adjustable valve system for an internal combustion engine

Details Adjustable valve system for an internal combustion engine Adjustable valve system for an internal combustion engine

1992-06-30

1993-02-23

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9050, F01L 134, F01L 114

Patent

active

051880679

ABSTRACT:
An adjustable valve system for an engine includes an axially shiftable camshaft with a plurality of cam lobes for actuating engine valves, with at least one of the lobes having a profile which varies as a function of the axial position of the lobe and camshaft. A bucket tappet includes a camshaft contact button which is mounted to a cradle and pivot pad such that the contact button and cradle will be allowed to pivot in response to axial shifting of the camshaft.

REFERENCES:
patent: 3915129 (1975-10-01), Rust et al.
patent: 4517936 (1985-05-01), Burgio di Aragona
patent: 4693214 (1987-09-01), Titolo
patent: 4850311 (1989-07-01), Sohn

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