Ignition timing control for internal combustion engine having a

Details Ignition timing control for internal combustion engine having a Ignition timing control for internal combustion engine having a

1977-12-12

1980-01-01

Cox, Ronald B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 75B, 123127, 123117R, 123 30C, F02P 504, F02M 1306

Patent

active

041811054

ABSTRACT:
Internal combustion engine having an intake port formed in cylinder head and a first and second intake passages both connected with said intake port. The intake passages are respectively provided with throttle valves and the throttle valve in the second intake passage is opened only under a heavy load operation. The ignition timing is advanced when the throttle valve in the second intake passage has been brought into operation.

REFERENCES:
patent: 2711162 (1955-06-01), Roberts
patent: 3171395 (1965-03-01), Bartholomew
patent: 3678905 (1972-07-01), Diehl
patent: 3727596 (1973-04-01), Panhard
patent: 3810452 (1974-05-01), Morris
patent: 3930474 (1976-01-01), Kawai

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