Anti-leak seal for pump motor

Details Anti-leak seal for pump motor Anti-leak seal for pump motor

1989-08-31

1991-07-16

Look, Edward K.

Expansible chamber devices

With removal conduit for liquid seepage from expansible chamber

277 3, 277 24, 91222, 91235, F01B 3100

Patent

active

050315099

ABSTRACT:
Method and apparatus for recovering leaked fluid or directing fluid flow or propagation through utilization of negative pressure pulses occurring in a pressurized fluid system. The invention has particular application in double acting hydraulic fluid motors where leakage of hydraulic fluid past the output shaft seal may be efficiently collected and redirected into the pressurized hydraulic fluid system through utilization of negative pressure pulses that are developed periodically by fluid direction changes during operation of the hydraulic fluid motor.

REFERENCES:
patent: 2348004 (1944-05-01), Gruetjen
patent: 2526236 (1950-10-01), Ingres
patent: 3293994 (1966-12-01), Napolitano
patent: 3584331 (1971-06-01), D'Hooge
patent: 3768371 (1973-10-01), Orme
patent: 3810634 (1974-05-01), Hakansson
patent: 3865015 (1975-02-01), Hakansson
patent: 3869963 (1975-03-01), Schindel
patent: 4245844 (1981-01-01), Pohl et al.
patent: 4249451 (1981-02-01), Le Moal
patent: 4417442 (1983-11-01), Ikenoya et al.

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