Exhaust apparatus for internal combustion engine

Details Exhaust apparatus for internal combustion engine Exhaust apparatus for internal combustion engine

1976-03-15

1977-09-27

Tomsky, Stephen J.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181228, 181268, F01N 112, F01N 100

Patent

active

040505391

ABSTRACT:
An exhaust apparatus for internal combustion engines comprises an outer pipe having an enlarged intermediate portion and at least one end portion having nearly the same diameter as the exhaust pipe from the engine for connection thereto, an inner pipe of approximately the same diameter as the exhaust pipe, a plurality of helical passages provided between the inner and outer pipes and sets of fins arranged inside the inner pipe at each end to impart vortical flow of gases passing through the inner pipe and to accelerate the gases through the helical passages and absorb them from the engine, the end portion of the outer pipe being connected with the exhaust pipe by means of an encircling clamping ring.

REFERENCES:
patent: 2557687 (1951-06-01), Rainville
patent: 3235003 (1966-02-01), Smith
patent: 3805495 (1974-04-01), Steel
patent: 3913703 (1975-10-01), Parker

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