Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – With means to control the working fluid to one working...
Patent
1982-11-02
1984-02-14
Michalsky, Gerald A.
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
With means to control the working fluid to one working...
91436, 91466, 137596, 13759613, 1375962, 13762569, 137884, F15B 1308
Patent
active
044309279
ABSTRACT:
A sectional hydraulic valve has clamped together an inlet section, an outlet section and at least one working section which can be integral with the inlet and/or outlet sections. Fluid supply and return passages are formed in the sections and are in register at each junction where there are formed contiguous planar sealing surfaces. A depressed area is provided in one of the surfaces surrounding the contiguous planar sealing surfaces of the supply and return passages and a groove containing a sealing ring is formed in one of surfaces around the depressed area. A drain passage leading to a low pressure region opens into the depressed area and should there be leakage between the sealing surfaces of the supply and return passages, particularly as a result of the presence of high pressure in said passages, the leaked fluid merely passes into the depressed area and flows through the drain passage to the low pressure region without subjecting the sealing ring to pressure and possible leakage there past. In addition to the supply and return passages there may also be through passages formed in the sections and separated from the supply and return passages by additional contiguous planar sealing surfaces within the confines of the depressed area, leakage between these last mentioned surfaces being likewise drained away without subjecting the sealing ring to pressure.
REFERENCES:
patent: 3133559 (1964-05-01), Tennis
patent: 3134402 (1964-05-01), Tennis
patent: 3151630 (1964-10-01), Tennis
patent: 3194265 (1965-07-01), Tennis
patent: 3464443 (1969-09-01), Tennis
patent: 3464444 (1969-09-01), Tennis
patent: 3465788 (1969-09-01), Tennis
patent: 3718159 (1973-02-01), Tennis
patent: 3722540 (1973-03-01), Mazur et al.
patent: 3881512 (1975-05-01), Wilke
patent: 3910311 (1975-10-01), Wilke
Michalsky Gerald A.
Rubery Owen (Hydraulics) Limited
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