Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-07-01
1997-02-18
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277141, 277163, 92193, F16J 916, F16J 1532
Patent
active
056035128
ABSTRACT:
An oil control ring assembly having a sealing ring and a scraping is disposed within a groove in a piston. The scraping ring assembly has a scraping end portion and spaced apart ends defining a gap. The sealing ring has a sealing end portion and mated spaced apart radially stepped ends defining a stepped gap. The sealing end portion is connected to the scraping end portion and the stepped gap on the sealing ring is offset from the gap on the scraping ring. A spring applies a radial force to the scraping ring which urges the end portion of the scraping ring into engagement with the cylinder wall and a reaction force moment about the end portion forces the end portion of the of the seal ring into contact with an upper surface of the groove. The oil control ring assembly simultaneously provides for side and gap sealing.
REFERENCES:
patent: 2474493 (1949-06-01), Phillips
patent: 2594282 (1952-04-01), Bergeron
patent: 3295857 (1967-01-01), Lutz
patent: 4011030 (1977-03-01), Staebler et al.
patent: 4421328 (1983-12-01), Thurston et al.
patent: 4473232 (1984-09-01), Umeha et al.
patent: 4629200 (1986-12-01), Ruddy
patent: 4767123 (1988-08-01), Kiese
patent: 5039116 (1991-08-01), Maeda
patent: 5251915 (1993-10-01), Meernik
"Study of Transient Oil Consumption of Automotive Engine", Paper No. 892110, T. Inoue et al., Toyota Motor Corp, pp. 59-65 (no date available).
Lawrence Keith E.
Shyu Tsu P.
Waldman Donald J.
Wietharn Ross P.
Caterpillar Inc.
Charlton Diana L.
DePumpo Daniel G.
Hickman Alan J.
LandOfFree
Side and gap sealed oil ring does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Side and gap sealed oil ring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Side and gap sealed oil ring will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1597935