Idle-adjusting device for an internal combustion engine

Details Idle-adjusting device for an internal combustion engine Idle-adjusting device for an internal combustion engine

1982-09-29

1984-05-22

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Idle speed control

123585, F02B 300, F02D 902, F02M 2506

Patent

active

044494980

ABSTRACT:
An idle-adjusting device for an engine having an air intake passage and a throttle valve disposed in the air intake passage, includes an auxiliary passage communicating with the air intake passage in such a manner as to bypass the throttle valve. A first variable restriction is provided in the auxiliary passage to adjustably reduce the local cross-sectional area of the auxiliary passage. A second variable restriction is provided in the auxiliary passage downstream of the first restriction to adjustably reduce the local cross-sectional area of the auxiliary passage. The first and second restrictions adjustably determine the effective cross-sectional area of the auxiliary passage.

REFERENCES:
patent: 3581852 (1971-06-01), Griffen
patent: 4281631 (1981-08-01), Yamaguchi
patent: 4354465 (1982-10-01), Takeuchi et al.
patent: 4378766 (1983-04-01), Yamozoe et al.
patent: 4378767 (1983-04-01), Kobashi et al.
patent: 4387682 (1983-06-01), Miyagi et al.
patent: 4389996 (1983-06-01), Yaegashi et al.
patent: 4401073 (1983-08-01), Furabushi

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