Control means for secondary throttle

Details Control means for secondary throttle Control means for secondary throttle

1976-07-22

1977-10-11

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Systems

261 39B, 261 41C, F02M 1102

Patent

active

040535428

ABSTRACT:
A multiple stage carburetor has a linkage releasably connecting the secondary throttle for rotation with the primary throttle to open the second stage. A latch member for the linkage is movable between latched and unlatched positions and only when the latch member is in a latched position is the linkage connected for rotation of the secondary throttle. A diaphragm unit operated from a vacuum line to the intake manifold moves the latch member between latched and unlatched positions. A bimetallic element independent of the choke valve controls an air bleed to the vacuum line and is positioned to sense the normal operating temperature of the engine for movement of the latch member to latched position and subsequent opening of the second stage when such temperature is reached.

REFERENCES:
patent: 2328763 (1943-09-01), Winkler
patent: 3043572 (1962-07-01), Ott et al.
patent: 3059909 (1962-10-01), Wise
patent: 3575385 (1969-04-01), Szwargulski
patent: 3672342 (1972-06-01), Ojala
patent: 3726512 (1973-04-01), Herwig et al.
patent: 3740040 (1973-06-01), Brown
patent: 3791358 (1974-02-01), Masaki et al.
patent: 3857908 (1974-12-01), Brown et al.

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