Throttle control system

Details Throttle control system Throttle control system

1976-10-08

1978-02-14

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123103E, 123DIG11, 251 614, 92165PR, F02D 1108

Patent

active

040732720

ABSTRACT:
A throttle control system comprising a throttle member movable with the throttle and yieldingly urged toward a throttle closed position and a vacuum controlled positioning assembly including a housing, a diaphragm within the housing dividing the housing into two chambers. A stem is mounted on the diaphragm and extends from the housing through an opening. The plunger has a first cylindrical portion and a second portion including opposed parallel flat surfaces connected by arcuate cylindrical portions having the same diameter as the first cylindrical portion. The opening has longitudinally spaced portions. One portion is cylindrical and generally complementary to said first cylindrical portion of the plunger and the other portion has the same configuration as the second portion of the plunger. A spring yieldingly urges the diaphragm in a direction to retract the plunger inwardly of the housing. The outer edge of the plunger is adapted to engage the throttle member to retard the movement thereof against the action of the spring when vacuum is applied to the second chamber of the housing.

REFERENCES:
patent: 2956549 (1960-10-01), Malpass
patent: 3603297 (1971-09-01), Sherwin et al.
patent: 3741177 (1973-06-01), Schultz
patent: 3847131 (1974-11-01), Hisatomi

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