Intake system for four-cycle engines

Details Intake system for four-cycle engines Intake system for four-cycle engines

1982-05-13

1984-12-18

Feinberg, Craig R.

Internal-combustion engines

Multiple cylinder

123306, 123 73A, 123 52MF, F02B 2900, F02B 3100

Patent

active

044885199

ABSTRACT:
An induction system for a four-cycle internal combustion engine that improves charging efficiency, power and torque at idle and low speed. A check valve is provided in the intake passage for precluding reverse flow under these running conditions. In addition, a plenum chamber is provided that communicates with the intake passage downstream of the check valve for improving power and torque throughout the entire load and speed range of the engine.

REFERENCES:
patent: 3687118 (1972-08-01), Nomura
patent: 4240387 (1980-12-01), Motosugi et al.
patent: 4356798 (1982-11-01), Sakaoka et al.

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