Electronic throttle

Details Electronic throttle Electronic throttle

2008-03-27

2009-02-17

Solis, Erick (Department: 3747)

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

C123S397000, C123S361000

Reexamination Certificate

active

07490590

ABSTRACT:
A throttle having: a housing having an airflow passage therein; a throttle plate rotatably mounted to the housing and disposed within the passage; a motor disposed outside the passage for rotating the throttle plate within the passage between an open position and a closed position in accordance with demanded torque signals; a spring coupled to the throttle plate for urging the throttle plate to a closed position in the absence of a demanded torque signal; and, an actuator assembly operative to place a stop, disposed outside the passage, in a position to limit rotation of the throttle plate to a predetermined minimum closed position in the absence of a demanded torque signal and for removing the stop when the motor receives a demanded torque signal.

REFERENCES:
patent: 4951772 (1990-08-01), Peter et al.
patent: 5076231 (1991-12-01), Buchl
patent: 5297522 (1994-03-01), Buchl
patent: 6029513 (2000-02-01), Kikori et al.
patent: 6253732 (2001-07-01), Semeyn et al.
patent: 6286481 (2001-09-01), Bos et al.

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