Internal-combustion engines – Particular piston and enclosing cylinder construction – Piston
Reexamination Certificate
2005-07-26
2005-07-26
McMahon, Marguerite (Department: 3747)
Internal-combustion engines
Particular piston and enclosing cylinder construction
Piston
C092S186000, C029S888040
Reexamination Certificate
active
06920860
ABSTRACT:
A cooling channel cover for a one-piece piston of an internal combustion engine, the piston having a closed cooling channel that runs around inside the piston crown, at the level of the piston ring band, and a ring-shaped recess provided between the piston ring band and the piston shaft. The piston shaft is connected with the piston hubs suspended on the piston crown. In such a piston, an easy to assemble cooling channel cover is achieved by a one-piece plastic/spring steel ring that is U-shaped in cross-section, having a ring bottom and an outer shank around the circumference, molded onto the ring bottom and angled off radially to the outside, and an inner shank around the circumference, angled off radially to the inside. The plastic ring has a first radial division having a mouth width and a second radial division, opposite the first division, which does not separate the radially angled outer shank that runs around the circumference, to form a film hinge for radial deflection of a ring shank formed by the film hinge.
REFERENCES:
patent: 4986167 (1991-01-01), Stratton et al.
patent: 5052280 (1991-10-01), Kopf et al.
patent: 5144923 (1992-09-01), Leites et al.
patent: 5261363 (1993-11-01), Kemnitz
patent: 5357920 (1994-10-01), Kemnitz et al.
patent: 5394819 (1995-03-01), Aarnio
patent: 5546896 (1996-08-01), Zaiser
patent: 5778533 (1998-07-01), Kemnitz
patent: 5778846 (1998-07-01), Mielke
patent: 6453797 (2002-09-01), Bauer
patent: 6659062 (2003-12-01), Issler
patent: 6722263 (2004-04-01), Keller et al.
patent: 252 638 (1987-12-01), None
patent: 41 34 530 (1992-05-01), None
patent: 40 39 751 (1992-06-01), None
patent: 42 08 037 (1998-03-01), None
patent: 0 561 871 (1995-11-01), None
patent: 0 799 373 (1999-01-01), None
International Standard ISO 1043-1 dated 1997.
Gabriel Dieter
Lapp Michael T.
Collard & Roe P.C.
Mahle GmbH
McMahon Marguerite
LandOfFree
Cooling channel cover for a one-piece piston of an internal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cooling channel cover for a one-piece piston of an internal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cooling channel cover for a one-piece piston of an internal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3381130