Power plants – Pressure fluid source and motor – Pulsator
Patent
1995-09-08
1996-10-08
Nguyen, Hoang
Power plants
Pressure fluid source and motor
Pulsator
60589, 92 133, B60T 1120, F01B 3114
Patent
active
055619800
ABSTRACT:
A tandem master cylinder having a small-diameter cylinder formed on the same axis as a cylinder bore in a floating piston, communicating with a primary fluid pressure chamber and a secondary fluid pressure chamber. A small-diameter piston is movably inserted in the small-diameter cylinder, dividing the primary fluid pressure chamber from the secondary fluid pressure chamber. A small-diameter piston spring is mounted in the small-diameter cylinder, pressing the small-diameter piston toward the secondary fluid pressure chamber. A stop is provided in the small-diameter cylinder to stop the forward movement of the small-diameter piston in the small-diameter cylinder. An elastic member is disposed in an unbiased state between the small-diameter piston and a cylinder front end wall. The elastic member has an elastic force in a direction of compression which is greater than that of the small-diameter piston spring. In case of a failure of the primary fluid pressure chamber, the tandem master cylinder immediately produces a fluid pressure in the secondary fluid pressure chamber while compressing the elastic member after making an ineffective stroke, equivalent to the discharge of the primary fluid pressure chamber, until it mechanically contacts the floating piston.
REFERENCES:
patent: 4078386 (1978-03-01), Ewald
patent: 4885910 (1989-12-01), Resch
patent: 4998950 (1991-03-01), Derrick
patent: 5018353 (1991-05-01), Pugh
patent: 5111661 (1992-05-01), Savidan et al.
patent: 5211019 (1993-05-01), Bauer
Miyako Jidosha Kogyo Kabushikigaisha
Nguyen Hoang
Topy Industries Limited
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