Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Motive fluid bypass to or from assembly
Patent
1979-04-09
1980-09-30
Freeh, William L.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Motive fluid bypass to or from assembly
91489, F01B 1304
Patent
active
042248590
ABSTRACT:
The axial piston machine, such as an engine or a pump, comprises a radial hydrostatic bearing for the drive shaft in the form of an oil gap between a conical shaft portion and a corresponding conical boring in a bearing block. The gap has a plurality of bearing pockets normally supplied with high-pressure oil via throttling means communicating with the high-pressure oil. An auxiliary axial hydrostatic bearing in the form of a bearing gap defined between the face of the bearing block near the tapering end of the bearing body and a radial extension of the drive shaft is supplied with an auxiliary low-pressure oil having an approximately constant pressure. A self-adjustable pressure chamber is provided in a plane parallel to the axial hydrostatic bearing gap and is defined by a collar supported on the drive shaft opposite the first radial extension and communicating with the axial bearing gap via a conduit. The pump for the auxiliary low pressure communicates with the pump for the operative high pressure via non-return valves so as to prevent return flow when the auxiliary pressure fluid has a higher pressure than the operational pressure fluid.
REFERENCES:
patent: 1817063 (1931-08-01), Carrie et al.
patent: 2155455 (1939-04-01), Thoma
patent: 3721161 (1973-03-01), Bobst
patent: 3789740 (1974-02-01), Boyer
patent: 3862588 (1975-01-01), Bahrle et al.
Eisenmann Siegfried
Hancke Dieter
Freeh William L.
Fuerstlich Hohenzollernsche Huettenverwaltung, Lauchertal
Striker Michael J.
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