Internal combustion engine

Details Internal combustion engine Internal combustion engine

1976-04-23

1978-03-21

Myhre, Charles J.

Internal-combustion engines

Cooling

Air-cooled

123 4177, 123 4185, 123188GC, 123188M, 123188S, F01P 904

Patent

active

040797040

ABSTRACT:
An internal combustion engine has a cylinder head formed with a cooling liquid passageway and an air space. The cylinder head has a combustion chamber cooled by cooling liquid flowing through the passageway and an exhaust valve and exhaust port passage cooled by cooling air conducted by the air space. An insulating air space surrounds an exhaust port passage extending from the exhaust valve. As a result cooling effect by the cooling air on exhaust gas flowing through the exhaust port passage is reduced.

REFERENCES:
patent: 2593769 (1952-04-01), Kollsman
patent: 2696810 (1954-12-01), Kuepfer
patent: 3102381 (1963-09-01), Tryhorn

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