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

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 41/24 (2006.01) B63H 20/14 (2006.01) F16H 61/64 (2006.01)

Patent

CA 2590068

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.

Transmission hydraulique verticale comprenant un vilebrequin vertical de moteur, un arbre de sortie vertical et un convertisseur de couple vertical placé entre le vilebrequin et l'arbre de sortie. Un passage d'alimentation en huile est relié à une des extrémités du circuit de circulation du convertisseur de couple vertical et oriente une huile tirée d'un réservoir de stockage et expulsée par une pompe à huile. Un passage de retour d'huile est relié à l'autre extrémité du circuit de circulation et mène au réservoir d'huile. Une soupape sensible à la pression, normalement fermée, est placée dans le passage de retour d'huile. La soupape sensible à la pression s'ouvre sous l'effet d'une pression en amont. Le réservoir d'huile de fonctionnement du convertisseur de couple est séparé du convertisseur de couple, ce qui réduit l'espace occupé par ce dernier. L'huile de fonctionnement circule entre le réservoir d'huile et le circuit de circulation du convertisseur de couple, facilitant le refroidissement de l'huile de fonctionnement.

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