Internal combustion engine with siamesed cylinder bores and pist

Details Internal combustion engine with siamesed cylinder bores and pist Internal combustion engine with siamesed cylinder bores and pist

1997-12-22

1999-07-27

McMahon, Marguerite

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

1231936, 1231934, 92177, F16J 100

Patent

active

059272430

ABSTRACT:
A reciprocating internal combustion engine includes a siamesed piston bore having a configuration formed by the intersection of two circular cylindrical elements and a matching piston having a similar siamesed configuration. This cylinder configuration allows a four cylinder engine to be about 25% shorter with the same displacement as an engine having circular cylinders and the same stroke.

REFERENCES:
patent: 4256067 (1981-03-01), Fukui
patent: 4306730 (1981-12-01), Honda et al.
patent: 4362135 (1982-12-01), Irimajiri
patent: 4466400 (1984-08-01), Irimajiri et al.
patent: 4471730 (1984-09-01), Honda
patent: 4671219 (1987-06-01), Ooyama et al.
patent: 4671228 (1987-06-01), Tomita et al.
patent: 4756241 (1988-07-01), Sakurahara et al.
patent: 4951621 (1990-08-01), Tomita et al.
patent: 5211101 (1993-05-01), Letsch et al.

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