FLUID COUPLING COMPRISING SHAFT SEALING DEVICE FOR PREVENTING LEAKAGE OF LUBRICATING OIL

WIPO Patent Application WO/2017/110239

A1

The present invention relates to a shaft sealing device for a fluid coupling. A fluid coupling is provided with: a casing (8) for accommodating an impeller (1) and a runner (2); a drive shaft (11) having the impeller (1) fixed thereto; an output shaft (12) that has the runner (2) fixed thereto and that extends through the casing (8); and an output shaft sealing device (65) that prevents the leakage of lubricating oil from a gap between the casing (8) and the output shaft (12). The output shaft sealing device comprises: a shaft seal (68) surrounding the outer circumferential surface of the output shaft; an output shaft sealing cover (66) that covers the shaft seal; an ejector (60); and an output shaft oil return pipe (67) that extends from the output shaft sealing cover to the ejector. Lubricating oil supplied to at least one bearing rotatably supporting each of the drive shaft and the output shaft is used by the ejector as a driving fluid.

JPS612919	DAMPER FOR FLUID-TYPE DRIVE DEVICE
JPH10274315	MOLDING METHOD OF CORNER PART BY PRESS
WO/2017/082879	TORQUE CONVERTER HAVING CONTROLLABLE DUAL CLUTCHES

OGATA HIROSHI (JP)
KATAYA YOSHINORI (JP)
KASAI HIDETOSHI (JP)
IKEDA HAYATO (JP)

PCT/JP2016/081800

June 29, 2017

October 27, 2016

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EBARA CORP (JP)

F16H41/24; F16D33/18; F16H41/30; F16H57/021; F16H57/029; F16H57/04; F16J15/447

JPS54142752U	1979-10-03
JPH10196686A	1998-07-31
JPS5625861U	1981-03-10
JPS6386468U	1988-06-06
JPS6191625U	1986-06-13

WATANABE, Isamu et al. (JP)

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