Method of making a rolled metal piston ring

Details Method of making a rolled metal piston ring Method of making a rolled metal piston ring

B - Operations, Transporting

23

P

26/152

B23P 15/06 (2006.01) F16J 9/06 (2006.01) F16J 9/20 (2006.01)

Patent

CA 1056139

METHOD OF MAKING A ROLLED METAL PISTON RING ABSTRACT OF THE DISCLOSURE A rolled steel oil control piston ring for internal combustion engines is of generally U-shaped cross section with a pair of opposed rigid sidewalls projecting inwardly of the ring from a central peripheral wall thereof. A pair of flat-faced solid scraper rims formed by closed pleats rolled from the peripheral wall extend outwardly of the ring. The ring is made by rolling flat strip steel stock through a series of profiled rollers by guiding the edges of the stock without deforming the same, while taking up dimensional variations of the stock by displacement of the central portion of the strip. Pleats are formed in the central portion by the profiled rollers and the pleats are closed on themselves to provide the solid scraper rims. An extrusion-like profile-reducing rolling step provides dimensional accuracy to the finished strip which is then punched to provide the vent openings in the peripheral wall, and coiled and cut to form individual piston rings.

274923

Affiliated with

Also associated with

Rating

Method of making a rolled metal piston 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 Method of making a rolled metal piston ring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a rolled metal piston ring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-355848