Power plants – Pressure fluid source and motor – Pulsator
Patent
1984-08-30
1987-06-02
Scott, Samuel
Power plants
Pressure fluid source and motor
Pulsator
303 6C, 188349, B60T 1134
Patent
active
046692681
ABSTRACT:
A master cylinder-reducing valve assembly has a master cylinder and a reducing valve for transmitting output hydraulic pressure from the master cylinder to a rear wheel brake at a reduced level. The reducing valve includes a valve housing provided on the master cylinder and having an inlet communicating with the output port of the master cylinder and an outlet communicating with a rear wheel brake. A pressure receiving piston is slidably received in the valve housing to divide the interior of the housing into an input hydraulic chamber communicating with the inlet and an output hydraulic chamber communicating with the outlet. The pressure receiving piston has a communication bore connecting between the input and output hydraulic chambers. A valve member is disposed in the input hydraulic chamber to open and close the communication bore. A valve spring is received in the valve housing and biases the valve member toward the pressure receiving piston. A pressure regulatng spring is also received in the valve housing for biasing the pressure receiving piston away from the valve member. The valve housing comprises a first half part having the inlet and integral with the master cylinder, and a second half part having the outlet and screwed to the first half part. The second half part has a valve cylinder fitted into its opening adjacent the first half part. A valve cylinder houses the valve member and the valve spring loaded between the valve member and the valve cylinder.
REFERENCES:
patent: 2770948 (1956-11-01), Porter
patent: 3493270 (1970-02-01), Doerfler
patent: 3945686 (1976-03-01), Orzel
patent: 4170386 (1979-10-01), Shutt
patent: 4213655 (1980-07-01), Brademeyer
patent: 4433872 (1984-02-01), Parker et al.
patent: 4475339 (1984-10-01), Inove
patent: 4477122 (1984-10-01), Hayashida
Hachiro Nobuaki
Takeuchi Hiroo
Flanigan Allen J.
Nissin Kogyo Kabushiki Kaisha
Scott Samuel
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