Engine-driven work machine

Details Engine-driven work machine Engine-driven work machine

2008-07-15

2008-07-15

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Cooling

Air-cooled

C123S19800E, C290S00100C

Reexamination Certificate

active

11826035

ABSTRACT:
A duct member is disposed around outer peripheries of an engine and an engine-driven generator to define a continuous cooling-air passage between the duct member and the outer peripheries. A cooling fan is disposed in the cooling-air passage to generate a flow of cool air from one end of the cooling-air passage to the other end during operation of the engine. An exhaust muffler of the engine is disposed in the vicinity of the other end of the cooling-air passage. An air guide plate is connected to the duct member and is suspended from an upper portion of the duct member to cover an upper portion of one side face of the exhaust muffler which is opposite the cooling-air passage so that the air guide plate guides the cooling air flowing out of the cooling-air passage downward along the one side face of the exhaust muffler.

REFERENCES:
patent: 5174406 (1992-12-01), Lee
patent: 5207187 (1993-05-01), Kurohara et al.
patent: 5284115 (1994-02-01), Imanishi et al.
patent: 6026768 (2000-02-01), Spitler et al.
patent: 6502659 (2003-01-01), Akasaka
patent: 6655486 (2003-12-01), Oshikawa et al.
patent: 2007/0108767 (2007-05-01), Hirose et al.
patent: 2007/0176426 (2007-08-01), Hirose et al.
patent: 2005-30353 (2005-02-01), None

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