Means for supplying a secondary air in an internal combustion en

Details Means for supplying a secondary air in an internal combustion en Means for supplying a secondary air in an internal combustion en

1982-10-19

1985-08-13

Hart, Douglas

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

60280, 60290, 60293, F02B 3700

Patent

active

045341737

ABSTRACT:
An internal combustion engine having a supercharger utilizes a secondary air supply control system for purifying exhaust gas. A secondary air supply passage with a reservoir chamber is provided in the middle of an intake passage communicating with an exhaust gas passage. A check valve prevents the back flow of exhaust gas in the middle of the secondary air supply passage. The secondary air passage in another embodiment has the intake passage downstream of a compressor or reservoir chamber in communication with the exhaust passage. A suitable amount of air is supplied into the exhaust passage from the intake passage or reservoir, at high pressure via the secondary air passage and check valve.

REFERENCES:
patent: 3232044 (1966-02-01), Gratzmuller
patent: 4091620 (1978-05-01), Dorsch

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