Automotive engine idle speed control device

Details Automotive engine idle speed control device Automotive engine idle speed control device

1986-12-10

1989-04-25

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123587, 251 3003, F02M 312

Patent

active

048237507

ABSTRACT:
Automotive engine idle speed control device meters the flow rate of air supplied to the engine bypassing an intake pipe thereof during engine idle operation to thereby control the engine idle speed. An actuating vacuum is produced in accordance with an electrical signal and acts on a diaphragm fixed to a valve movable with the diaphragm to meter the bypass air flow. To cancel any external force acting on the valve, adjusting means is provided to control the vacuum on the diaphragm independently of the electrical signal to displace the diaphragm in a direction opposite to the direction of action of the external force on the valve.

REFERENCES:
patent: 2694544 (1954-11-01), Hall
patent: 3030981 (1962-04-01), Chatham et al.
patent: 3512749 (1970-05-01), Noakes et al.
patent: 4355606 (1982-10-01), Casey
patent: 4356802 (1982-11-01), Kern et al.

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