Forced-air-cooled engine equipped with cooling air guide cover

Details Forced-air-cooled engine equipped with cooling air guide cover Forced-air-cooled engine equipped with cooling air guide cover

2006-10-18

2008-08-12

Kamen, Noah (Department: 3747)

Internal-combustion engines

Cooling

Air-cooled

C123S041560

Reexamination Certificate

active

07409931

ABSTRACT:
A forced-air-cooled engine has a main blow-out opening provided to a back plate of a cooling fan cover at a position facing a cylinder part for blowing out cooling air for cooling a cylinder part and a secondary blow-out opening provided to the back plate at a position opposite to the main blow-out opening in regard to the crankshaft center for cooling a part of a crankcase part, wherein a cooling air guide cover is equipped which is composed of a cylinder air-guide cover part which guides air blown out from the main blow-out opening to flow to cool the cylinder part and cylinder head, and a top cover part which guides air blown out from the secondary blow-out opening to flow along a side face of the crankcase part to cool there and then flow into midstream of the cooling air flow blown out from the main blow-out opening and cooling the cylinder part and cylinder head.

REFERENCES:
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patent: 2001-355561 (2001-12-01), None
patent: 2003-56408 (2003-02-01), None

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