Water-cooled engine

Details Water-cooled engine Water-cooled engine

1998-02-03

1999-11-02

Kamen, Noah P.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

440 89, 440900, F02F 136

Patent

active

059750332

ABSTRACT:
Each of combustion chambers 37 in a cylinder head 8 and an opening 45 in a cylinder block/cylinder head coupling surface 36 are connected to each other by a pair of exhaust passages 42. A cooling water passage 94 is defined within a partition wall 44 partitioning both the exhaust passages 42, and constitutes a portion of a cooling water jacket for cooling portions near the exhaust passages 42. The cooling water passage 94 extends within the partition wall 44 to near each of the combustion chamber 37 and moreover, communicates with a cooling water jacket in a cylinder block through openings 83 and 87. Thus, the cooling performance for the water-cooled engine including the pair of exhaust passage for each of the combustion chambers can be enhanced.

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