Intake device for internal combustion engine

Details Intake device for internal combustion engine Intake device for internal combustion engine

1988-03-09

1989-09-05

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

123 52MC, F02B 7518

Patent

active

048628409

ABSTRACT:
An internal combustion engine intake device having a high-speed intake passage for high-speed operation and a low-speed intake passage for a low-speed operation of the engine. Each high- and low-speed intake passage is connected to an intake port and valve hole of each cylinder of the engine. An intake box is connected to the upstream ends of the high- and low-speed intake passages and has in inlet coupled to a throttle body having a throttle valve operable in response to throttle operation by the driver. Control valves are disposed in each high- and low-speed intake passage for individually controlling the flow passage areas and the valves are operated to provide the optimum intake air flow.

REFERENCES:
patent: 4232640 (1980-11-01), Matsumoto et al.
patent: 4627396 (1986-12-01), Yoshida
patent: 4643136 (1987-02-01), Ura et al.
patent: 4714063 (1987-12-01), Oda et al.
patent: 4725177 (1988-04-01), Koike

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