Cylinder head with desmodromic valve operation, for internal com

Details Cylinder head with desmodromic valve operation, for internal com Cylinder head with desmodromic valve operation, for internal com

1987-04-02

1988-11-15

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Valve driven closed

123 9039, F01L 130

Patent

active

047840943

ABSTRACT:
In a cylinder head with desmodromic valve operation for internal combustion engines, where the operation is implemented by two rockers for each valve which control its closure and opening respectively and which act on the valve stem by way of calibrated registers.
The rocker for opening the valve is mounted with two degrees of freedom on its pin. One of these degrees of freedom relates to its ability to rotate about the pin and the other to its ability to translate along the pin. By utilizing this second degree of freedom, the rocker can be moved onto and off the valve.

REFERENCES:
patent: 1349089 (1920-08-01), Ohet
patent: 1633882 (1927-06-01), Ballot
patent: 2298981 (1942-10-01), Smith
patent: 2814283 (1957-11-01), Gassmann et al.
patent: 2908262 (1959-10-01), Gropp
patent: 2982274 (1961-05-01), Brown
patent: 3150648 (1964-09-01), Gropp
patent: 4086887 (1978-05-01), Schoonover et al.
patent: 4401064 (1983-08-01), Nakamura et al.
patent: 4402284 (1983-09-01), Honma
patent: 4488520 (1984-12-01), Hmor

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