Hydrostatic radial pocket bearing for a servo cylinder

Details Hydrostatic radial pocket bearing for a servo cylinder Hydrostatic radial pocket bearing for a servo cylinder

1994-06-09

1995-02-21

Footland, Lenard A.

Bearings

Linear bearing

Fluid bearing

384118, 384119, F16C 3206

Patent

active

053910028

ABSTRACT:
A hydrostatic radial pocket bearing for a servo cylinder is described, particularly for a high performance testing cylinder, of the kind as used, for example, in test rig or simulation technology. The radial pocket bearing is suitable for the highly precise regulation of the piston and for receiving large transverse forces acting on the piston rod. An even number of bearing pockets is uniformly distributed over the bearing periphery and fed from a source of pressure fluid by way of associated preliminary throttles connected to pressure supply conduits and by way of an associated connecting conduit. The preliminary throttles are formed by the bearing gap between a supply orifice and at least one outlet groove in an opposite bearing pocket, the bearing pocket being in the form of a reentrant depression either in the fixed or in the moving bearing portion. To reduce loss energy caused by leakage and at the same time increase the force carrying capacity of the bearing, the pressure drop of the pressure fluid flow axially away from the bearing pocket is different on both sides.

REFERENCES:
patent: 2054055 (1936-09-01), Klahn
patent: 2449297 (1948-09-01), Hoffer
patent: 3640590 (1972-02-01), Beisemann
patent: 4232913 (1980-11-01), Nilsson
patent: 4351574 (1982-09-01), Furukawa et al.
patent: 4685813 (1987-08-01), Moog
patent: 4710035 (1987-12-01), Vaughn
Carl Schenck AG, Hydropuls-Langszylinder PL, Hydropuls-Spezifikation 1 PL 8707 (English translation and statement of relevancy attached), (no date).

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