Exhaust brake unit equipped with a pair of swing flap valves

Details Exhaust brake unit equipped with a pair of swing flap valves Exhaust brake unit equipped with a pair of swing flap valves

1988-07-01

1990-01-16

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Combined with mechanism retarded by brake

123323, 137601, F02D 906, F22B 2100

Patent

active

048936987

ABSTRACT:
An exhaust brake unit comprises a case to be inserted into an exhaust gas line, a valve seat located inside the case so as to encircle an exhaust gas passage, a pair of cavities formed on opposite side walls along the exhaust gas passage, a pair of shafts mounted in the respective cavities, and a pair or swing flaps mounted on the respective shafts. Facing flaps open and close the exhaust gas passage through the action of being engaged with the valve seat and disengaged from it. The flaps are connected to an actuating means by way of a linking mechanism which can be variously modified. The flaps may have unequal areas and/or have a time lag between their opening movements to reduce the force and time required to open the flaps.

REFERENCES:
patent: 1577466 (1926-03-01), Hyre
patent: 3331394 (1967-07-01), Hefler et al.
patent: 4369623 (1983-01-01), Johnson
patent: 4377181 (1983-03-01), Chan
patent: 4408627 (1983-10-01), Harris
patent: 4633900 (1987-01-01), Suzuki
patent: 4658857 (1987-04-01), Ayres

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