Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1991-11-19
1993-03-23
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277141, 277216, 267 15, F16J 906
Patent
active
051957582
ABSTRACT:
A three-piece oil control ring includes a pair of radially split, generally flat annular rails which are supported in an axially spaced relationship by an annular spacer-expander. The expander defines alternating, axially symmetrical and generally U-shaped loops or corrugations. Each loop includes a pair of legs joined to a pad. The pad has a stepped configuration in radial cross section and includes a raised, outer, generally flat portion which supports a rail and a lowered central or intermediate portion. Each loop includes an axially extending lug or tab. The central portion is formed with a dimple or depression which provides sufficient material during the forming operation to configure the lug with a circumferentially extending, elongated rail contact surface. The legs of each of the corrugations are substantially vertical, having an angle from vertical within the range of zero to thirteen degrees. The total length of the surface of the lugs or tabs in contact with one of the rails is greater than 38 percent of the total circumferential length of the spacer-expander.
REFERENCES:
patent: 2656230 (1953-10-01), Phillips
patent: 2815996 (1957-12-01), Phillips
patent: 2904377 (1959-09-01), Endres et al.
patent: 2907101 (1959-10-01), Hamm
patent: 2970022 (1961-01-01), Anderson
patent: 3346264 (1967-10-01), Hamm
patent: 3442519 (1969-05-01), Hamm et al.
patent: 3663030 (1972-05-01), Miyamoto
patent: 3814444 (1974-06-01), Johnson et al.
patent: 4130288 (1978-12-01), Nisper
patent: 4194747 (1980-03-01), Nisper
patent: 4226430 (1980-10-01), Nisper
patent: 4429885 (1984-02-01), Chiba et al.
patent: 4585237 (1986-04-01), Koop
patent: 5052698 (1991-10-01), Kimura
patent: 5087055 (1992-02-01), Ono et al.
Catalog sheet entitled "RIK Piston Ring".
Cuchlinski Jr. William A.
Folker James K.
Hastings Manufacturing Company
LandOfFree
Three-piece oil control ring assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three-piece oil control ring assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-piece oil control ring assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1346978