Cylinder with hybrid bore surface

Details Cylinder with hybrid bore surface Cylinder with hybrid bore surface

1994-07-22

1997-12-30

Macy, Marguerite

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

C23F 1700

Patent

active

057018618

ABSTRACT:
An internal combustion engine cylinder bore has a hybrid surface to optimize both wear of the cylinder and oil consumption of the engine. The surface has a coarsely honed surface over at least one of a top portion and a bottom portion of the bore surface. A mid-portion disposed between the top portion and the bottom portion has a finely honed surface.

REFERENCES:
patent: 2809873 (1957-10-01), Cavileer
patent: 3620137 (1971-11-01), Prasse
patent: 3657078 (1972-04-01), Schweikher
patent: 3749072 (1973-07-01), Schweikher
patent: 3903951 (1975-09-01), Kaneko et al.
patent: 3932228 (1976-01-01), Sugiyama et al.
patent: 4044217 (1977-08-01), Otsuki et al.
patent: 4196547 (1980-04-01), Keske
patent: 5191864 (1993-03-01), Santi

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