Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1978-12-12
1981-11-17
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Idle speed control
123352, 123360, 123585, F02M 306
Patent
active
043005012
ABSTRACT:
Apparatus for controlling the rotational speed of an I.C. engine in an idling operation comprises a constant pressure valve, a solenoid valve, and a control signal generator. A constant vacuum pressure produced by the constant pressure valve is modified by atmospheric pressure by means of the solenoid valve which is actuated by a pulsating signal produced in the control signal generator. The pulse width of the pulsating signal is variable in accordance with a detected engine speed. The modified vacuum pressure is coupled to a chamber of a main valve of a conventional boost controlled deceleration device to control the amount of air-fuel mixture supplied to the intake manifold of the engine.
REFERENCES:
patent: 3103128 (1963-09-01), Gordon
patent: 3304068 (1967-02-01), Thomas
patent: 3455260 (1969-07-01), Mennesson
patent: 3964457 (1976-06-01), Coscia
patent: 4008696 (1977-02-01), Hisatomi
patent: 4091777 (1978-05-01), Monpetit et al.
patent: 4108127 (1978-08-01), Chapin et al.
patent: 4138975 (1979-02-01), Hamelin et al.
patent: 4181104 (1980-01-01), Shinoda
Argenbright Tony M.
Nissan Motor Company Limited
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