Intake system with supercharger for internal combustion engine

Details Intake system with supercharger for internal combustion engine Intake system with supercharger for internal combustion engine

1991-01-25

1993-04-20

Koczo, Michael

Internal-combustion engines

Charge forming device

Supercharger

F02B 3300

Patent

active

052033090

ABSTRACT:
An intake system has an intake passage provided with a throttle valve and a supercharger for delivering a supercharger pressure to intake air engine cylinders. A bypass passage is connected to the intake passage so as to allow an intake air flow to bypass the supercharger. The intake air flow in the bypass passage is controlled by a valve, disposed in the bypass passage, which operates to variably cause the intake air to flow in the bypass passage only with a negative pressure created in the intake passage upstream of the supercharger. A pressure is applied to the valve during closing so as to cancel the supercharger pressure acting on the valve in an opening direction.

REFERENCES:
patent: 4802456 (1989-02-01), Okane et al.
patent: 5022375 (1991-06-01), Goto et al.

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