Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Activation of one path disables second path
Patent
1993-12-08
1996-06-18
Lopez, F. Daniel
Motors: expansible chamber type
Fluid supply through diverse paths to single expansible chamber
Activation of one path disables second path
91376R, 91379, F15B 1304
Patent
active
055267297
ABSTRACT:
The present invention provides a booster of the gaseous pressure type. The booster of the gaseous pressure type comprises: a power piston dividing the inside of a shell between a constant pressure chamber the inside of which is maintained in an approximately constant pressure, and a variable pressure chamber into which an operation gas can be introduced, wherein the power piston comprises a valve body projecting to the outside of the shell and a movable partition means for dividing the inside of the shell, with the inner periphery of the partition means fixed to the valve body; a valve for introducing the operation gas into the variable pressure chamber through a communication passage, according to a movement relative to the valve body of an input shaft which is connected to a brake pedal, and provided in the valve body; a cover for supporting the valve body and for forming an operation gas chamber which can store the operation gas, together with the shell, provided outside the portion of the valve body projecting from the shell; a gas source generating the operation gas; and a path for supplying the operation gas from the gas source to the operation gas chamber.
REFERENCES:
patent: 3295419 (1967-01-01), Vielmo et al.
patent: 3780620 (1973-12-01), Garnder
patent: 4116218 (1978-09-01), Acre et al.
patent: 4800799 (1989-01-01), Nishii
patent: 5005465 (1991-04-01), Boehm et al.
Amari Yasuhiko
Ando Hiromi
Osaka Nobumaro
Lopez F. Daniel
Tokico Ltd.
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