Dashpot

Details Dashpot Dashpot

1976-12-27

1979-01-30

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

261DIG18, 261DIG19, 123103E, 123 97B, 261 65, F02D 1108

Patent

active

041366492

ABSTRACT:
A dashpot for impeding rapid closing of a throttle valve of a carburetor, especially for an automotive engine has an air passage that opens to the atmosphere, venting a dashpot chamber whose capacity increases when the dashpot operates. A delay device is provided in the air passage, and comprises an orifice and a nonreturn valve arranged in parallel, and in series therewith, a control valve that closes the air passage when an intake manifold vacuum exceeds a set value. The dashpot serves as a throttle positioner in the high engine rotation area, and as a regular dashpot in the low engine rotation area.

REFERENCES:
patent: 2059410 (1936-11-01), Straub
patent: 2424836 (1947-07-01), Mallory
patent: 2505292 (1950-04-01), Mallory
patent: 3327695 (1967-06-01), Rhodes
patent: 3486491 (1969-12-01), White
patent: 3623465 (1971-11-01), Wawrziniok
patent: 3805760 (1974-04-01), Yagi
patent: 3881685 (1975-05-01), Hase
patent: 3996904 (1976-12-01), Kobuki
patent: 3999524 (1976-12-01), Kobayashi

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