Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1980-06-10
1981-12-08
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Idle speed control
123DIG11, 123198D, 123198DB, F02B 7700, F02D 1108, F02D 104
Patent
active
043042015
ABSTRACT:
A multi-stage latching device for a carburetor which controls the idle speed by defining various throttle plate positions according to deceleration sensor switch, air conditioning switch and ignition switch states. The mechanism which moves the throttle plate consists of a primary force coil which energizes an armature against spring return and the position of the armature coupled through a shaft establishes the idle speed. The throttle position is determined by any one of three adjustably disposed latch coils which when energized, magnetically couple to a casing to define a stop. A circuit control associated with each latch deenergizes the primary force coil while maintaining the magnetic coupling of the stop. With primary force off, the return spring forces the armature back against the energized stop and hence establishes the throttle position and idle speed.
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CTS Corporation
Nelli Raymond A.
Palguta Larry J.
Young John A.
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