Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Second path activated in response to pressure or flow in...
Patent
1979-07-02
1981-10-06
Halvosa, George E. A.
Motors: expansible chamber type
Fluid supply through diverse paths to single expansible chamber
Second path activated in response to pressure or flow in...
91422, 188349, 303 6C, F15B 13042
Patent
active
042928834
ABSTRACT:
A wheel cylinder includes a housing defining a bore. A piston is reciprocably received in the bore and cooperates with the housing to define a pressure chamber. The wheel cylinder comprises a passage for supplying pressurized fluid to the pressure chamber from a fluid pressure source. The supply passage includes a first portion defined by an annular groove on the piston and a blind axial bore in the piston which communicates with both the annular groove and with the pressure chamber. A valve apparatus is received in the blind bore and modulates the fluid pressure supplied to the pressure chamber as a function of the fluid pressure provided by the pressure source.
REFERENCES:
patent: 2207173 (1940-07-01), Goepfrich
patent: 2282556 (1942-05-01), Bowen
patent: 2858804 (1958-11-01), Banker
patent: 3707210 (1972-12-01), Nyunoya et al.
patent: 3866984 (1975-02-01), Seip
patent: 3904253 (1975-09-01), Riquart
patent: 4188073 (1980-02-01), Ishikawa et al.
Levrai Roland
Riquart Christian
Decker Ken C.
Halvosa George E. A.
Schoenle Paul David
Societe Anonyme DBA
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