Vertical fluid power transmission and outboard engine system

Details Vertical fluid power transmission and outboard engine system Vertical fluid power transmission and outboard engine system

2007-05-23

2008-12-02

Avila, Stephen (Department: 3617)

Marine propulsion

Screw propeller

Having transmission

Reexamination Certificate

active

07458867

ABSTRACT:
A vertical fluid power transmission includes: a vertical crankshaft of an engine; a vertical output shaft; and a vertical torque converter disposed between the crankshaft and the output shaft. An oil supply passage is connected to one end of the circulation circuit of the vertical torque converter, and guides a stored oil that is drawn up from an oil tank and discharged by an oil pump. An oil return passage is connected to the other one end of the circulation circuit, and leads to the oil tank. A normally-closed pressure response valve is provided in the oil return passage. The pressure response valve is opened by an upstream pressure. Thus, the oil tank for storing a working oil of the torque converter is separated from the torque converter, thereby downsizing the torque converter, and the working oil is circulated between the oil tank and the circulation circuit of the torque converter, thereby promoting cooling of the working oil.

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patent: 2003/0073359 (2003-04-01), Kameoka
patent: 2003/0136221 (2003-07-01), Hori et al.
patent: 1 302 700 (1999-11-01), None
patent: 1 426 287 (2004-06-01), None
patent: 1019800 (1966-02-01), None

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