Engine construction

Details Engine construction Engine construction

1997-12-16

2000-06-13

McMahon, Marguerite

Internal-combustion engines

Multiple cylinder

Cylinders radiating

1231933, F02F 700

Patent

active

060735953

ABSTRACT:
An in-line opposed cylinder engine constructed of a pair of half blocks which when combined form a pair of spaced cylinder heads and an intermediate crankcase and in which the cylinder heads and the intermediate crankcase are tied together by a plurality of spaced elongated through bolts which extend through the cylinder heads and through the half blocks. Each cylinder head is integral with the remainder of the half block and is preferably of a composite construction with a core of steel or the like which forms the cylinder bore, the firing deck, the exhaust ports and the valve guide as well as the main bearing supports. A matrix structure of lighter material such as aluminum is cast around the core and forms the induction air passages to the intake ports, the coolant passages, oil passages, and the main bearing bosses.

REFERENCES:
patent: 2700964 (1955-02-01), Nallinger
patent: 2769438 (1956-11-01), Witzky
patent: 3316688 (1967-05-01), Bachle
patent: 3744462 (1973-07-01), Herschmann et al.
patent: 4387678 (1983-06-01), Tholen
patent: 4630345 (1986-12-01), Lutz
patent: 4977864 (1990-12-01), Grant
patent: 5579729 (1996-12-01), Batzill et al.

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