Axially centering means for fluid machines

Details Axially centering means for fluid machines Axially centering means for fluid machines

1974-06-14

1976-04-06

Husar, C. J.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Annular groove or recess completely encircles rotation axis

F01C 2116, F04C 1504

Patent

active

039485900

ABSTRACT:
A fluid machine, particularly a hydraulic pump, has a high pressure side and a low pressure side. A rotor or a pair of cooperating gears are mounted for rotation and have spaced end faces extending transversely of their respective axes of rotation. Walls define at each of these end faces at least one fluid compartment which is open to the respective end face and which communicates via a restricted outflow gap with the low pressure side of the machine, and via a conduit with the high pressure side of the machine. In each conduit a throttle is interposed, and the end faces are subjected from the respective compartments to fluid pressures which permanently tend to equalize with one another, and which therefore tend to axially center the rotor or gears in the event of axial displacement thereof.

REFERENCES:
patent: 2387761 (1945-10-01), Kendrick
patent: 2816511 (1957-12-01), Korkowski
patent: 3516767 (1970-06-01), Perkins
patent: 3695789 (1972-10-01), Jansson
patent: 3744942 (1973-07-01), Mount

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