Secondary air introducing apparatus for internal combustion engi

Details Secondary air introducing apparatus for internal combustion engi Secondary air introducing apparatus for internal combustion engi

1982-06-22

1984-02-28

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

F01N 330

Patent

active

044335415

ABSTRACT:
A secondary air introducing apparatus for introducing secondary air into the exhaust manifold of an internal combustion engine. The apparatus includes a secondary air introducing passage connected between the air cleaner and the exhaust manifold of the engine, a check valve in the passage arranged to operate in response to pulsation pressure in the exhaust manifold to supply clean secondary air thereto, a first expansion chamber interposed in the passage on an upstream side of the check valve, and a second expansion chamber interposed in the passage on an upstream side of the first chamber. At least the check valve and the first chamber are fixedly mounted on the intake manifold.

REFERENCES:
patent: 4162613 (1979-07-01), Tamura et al.
patent: 4319452 (1982-03-01), Morita

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