Piston ring having wear coating consisting of Cr.sub.2 N or a mi

Details Piston ring having wear coating consisting of Cr.sub.2 N or a mi Piston ring having wear coating consisting of Cr.sub.2 N or a mi

1997-01-27

1998-10-13

Cummings, Scott

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

277443, 277444, 277477, F16J 926

Patent

active

058201319

ABSTRACT:
A Cr.sub.2 N film or a mixed Cr.sub.2 N and Cr film formed by physical vapor deposition on the outer circumferential surface of a piston ring which is in contact with the inner circumferential surface of a cylinder. The axial width of the outer circumferential surface of the piston ring is 0.6 mm or less. The nitrogen content of the film is 11 to 17 percent by weight. The Vicker's hardness of the film is in the range of HV1300 to HV2000. The thickness of the film is 3 .mu.m to 30 .mu.m.

REFERENCES:
patent: 5308089 (1994-05-01), Ishida
patent: 5582414 (1996-12-01), Miyazaki et al.
patent: 5601293 (1997-02-01), Fukutome et al.

Affiliated with

Also associated with

Rating

Piston ring having wear coating consisting of Cr.sub.2 N or a mi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piston ring having wear coating consisting of Cr.sub.2 N or a mi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piston ring having wear coating consisting of Cr.sub.2 N or a mi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-306002