Outboard engine system

Details Outboard engine system Outboard engine system

2007-05-24

2009-08-25

Avila, Stephen (Department: 3617)

Marine propulsion

Screw propeller

Having transmission

Reexamination Certificate

active

07578713

ABSTRACT:
An outboard engine system includes a casing and an engine mounted in an upper part of the casing. The casing also contains a torque converter, and a vertically arranged output shaft connected to a crankshaft through the torque converter. In the torque converter, a turbine runner is arranged above a pump impeller and connected to the output shaft, and a transmission cover is connected to an outer periphery of the pump impeller so as to cover an upper surface of the turbine runner. A drive plate is secured at its central portion to a lower end of the crankshaft by a first bolt, and an outer peripheral portion of the drive plate is secured to the transmission cover by a second bolt. The torque converter is suspended from the crankshaft via the drive plate. Thus, it is possible to provide an outboard engine system which enables support of a torque converter without using any bearing exclusively for supporting the overall weight of the torque converter, thereby reducing the cost.

REFERENCES:
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patent: 4867641 (1989-09-01), Okuno et al.
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patent: 5310033 (1994-05-01), Shibayama
patent: 2004/0216555 (2004-11-01), Ide et al.
patent: 2006/0000682 (2006-01-01), Yamamoto et al.
patent: 1 619 415 (2006-01-01), None

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