Piston for an internal combustion engine

Details Piston for an internal combustion engine Piston for an internal combustion engine

2006-12-26

2006-12-26

McMahon, Marguerite (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Piston

Reexamination Certificate

active

07152567

ABSTRACT:
The invention relates to a piston for an internal combustion engine comprising piston-pin bores, into which lubrication grooves that run around the nadir and equator zones of said bores are machined. The aim of the invention, is to simplify the production of the piston-pin bores provided with said lubrication grooves. To achieve this, each of the lubrication grooves has a central region, whose groove base has a depth of less than 100 μm. Said central region is flanked by groove areas facing towards the interior and exterior of the piston. The bases of said grooves are inclined towards the longitudinal axis, each forming an acute angle with the longitudinal axis of the piston-pin bore.

REFERENCES:
patent: 1923597 (1933-08-01), Walker
patent: 3023060 (1962-02-01), Pachernegg
patent: 4297975 (1981-11-01), Galli
patent: 4550647 (1985-11-01), Coulin
patent: 6491013 (2002-12-01), Gaiser et al.
patent: 6513477 (2003-02-01), Gaiser et al.
patent: 6923153 (2005-08-01), Rein et al.
patent: 2002/0061146 (2002-05-01), Ono et al.
patent: 198069 (1958-06-01), None
patent: 476204 (1969-09-01), None
patent: 512364 (1930-10-01), None
patent: 1725611 (1956-07-01), None
patent: 1979948 (1968-02-01), None
patent: 2333031 (1975-01-01), None
patent: 3518721 (1986-11-01), None
patent: 3740820 (1989-01-01), None
patent: 3830 033 (1989-06-01), None
patent: 0095951 (1986-03-01), None
patent: 1239739 (1960-08-01), None
patent: 521632 (1940-05-01), None

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