Exhaust brake apparatus of sliding type

Details Exhaust brake apparatus of sliding type Exhaust brake apparatus of sliding type

1984-07-13

1985-11-19

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Combined with mechanism retarded by brake

123323, 188154, F02D 906

Patent

active

045536481

ABSTRACT:
An exhaust brake apparatus of sliding type is provided including a main valve which is adapted to open or close an exhaust gas passage. The main valve is formed with a vent hole which provides a communication thereacross through the exhaust gas passage. A sub-valve which operates to open or close the vent hole is connected through an operating rod to an actuator. When the exhaust gas passage is to be closed, the sub-valve is caused to close the vent hole before the main valve is operated while when the exhaust gas passage is to be opened, the sub-valve is moved out of its position closing the vent hole before the main valve is operated. In accordance with the invention, the main valve is formed with a plurality of vent holes, which are individually opened or closed by a plurality of sub-valves mounted on the operating rod. In this manner, an increased area of flow path through the vent holes is achieved without increasing the stroke of the operating rod or increasing the size of the sub-valves.

REFERENCES:
patent: 3947073 (1976-03-01), Cattaneo et al.
patent: 4061215 (1977-12-01), Ishikawa
patent: 4205704 (1980-06-01), Benson
patent: 4211312 (1980-07-01), Nogami et al.
patent: 4380971 (1983-04-01), Thulen et al.
patent: 4408627 (1983-10-01), Harris

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