Hydrostatic machine with compensated sleeves

Details Hydrostatic machine with compensated sleeves Hydrostatic machine with compensated sleeves

2006-07-11

2006-07-11

Kershteyn, Igor (Department: 3745)

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Parallel cylinders

C092S144000, C092S154000, C092S169400, C091S046000

Reexamination Certificate

active

07073427

ABSTRACT:
A hydrostatic machine with a cylinder block (6), within which sleeve holes (28b) are arranged, in which sleeves (28) sit, surrounding piston bores (28a) in which pistons (29) are mounted, such as to be displaced back and forth and the pistons (29) extend into the cylinder block (5) such as to define cylinders (26) with the front ends thereof. According to the invention, the risk of piston seizure can be reduced, whereby the sleeves (28) comprise an axially-defined recess (41) in the outer surface thereof, in the region facing away from the cylinder and the region with the greatest piston radial force, pressing the pistons (29) against the wall of the piston bore.

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patent: 198 37 647 A 1 (2000-03-01), None
patent: 1 156 212 (2001-11-01), None
patent: 992230 (1965-05-01), None

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