2019-6-13 · Further, Patent Literature 3 describes a method for forming a surface coating which includes a heat resistant resin containing a copper powder on the side face of a piston ring. In Patent Literature 3, the wear resistance is imparted to the surface coating formed on the surface of the piston ring by addition of the copper powder, and accordingly the lubricity due to the heat resistant resin can be exerted over
This invention relates generally to piston rings for internal combustion engines and more particularly to a piston ring having an improved bearing surface and a method of forming the same. Plating the bearing surface of a piston ring with hard chromium is known to offer several advantages.
2017-5-22 · This problem is solved by a piston ring according to the invention, the outer running face of which is divided into regions which extend around in the circumferential direction over different axial height regions of the running face: an upper running face region on the combustion chamber side, a lower running face region on the crankcase side, and a middle running face region between the upper and
The present invention relates to a piston ring and particularly to an oil-control ring for an internal combustion engine or compressor which comprises pistons reciprocating in an associated cylinder. Oil-control or oil scraper rings, as they are otherwise known, are used on pistons in engines to prevent or limit the passage of oil into the combustion chamber and so prevent excessive oil consumption.
The invention having thus been described, I claim: A piston ring comprising an annular member having an axis, the cross section of said member having a radial dimension on the order of twice its axial dimension, said member having an external face entirely out of parallel with the axis and having inwardly converging upper and lower sides, the angular relationship between said face and said sides being nearer to perpendicular at the upper side than at the lower side
2020-4-28 · LSU ME Professor Receives Patent on Piston Ring Friction Reduction. April 28, 2020. BATON ROUGE, LA LSU Mechanical Engineering Professor and LSU Center for Rotating Machinery Director Michael Khonsari recently received approval on a patent that will reduce the friction of piston rings, therefore, increasing energy savings.
Recently, Yizheng Shuanghuan another process technology "a piston ring surface of the multi-layer composite hard PVD coating, piston rings and the preparation process" was awarded the national invention patents, authorized patent number: ZL201410043806.9.
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circular piston ring wo uld conform t o a var ying degree to bore surface as a problem of ph ysical scale, wh ich is also affected b y ring elasticity, r ing tension and g as pressure .
2019-6-13 · 1. A piston for an internal combustion engine, comprising: a piston head and a piston skirt together defining a reciprocating axis; the piston head including a piston crown, an encircling fire land, an encircling ring belt including a plurality of ring grooves, and an encircling cooling duct disposed radially inwards from the encircling ring belt with respect to the reciprocating axis, the
C.T.I. Traffic Industries Co., Ltd, established in 1973, is an innovative and creative Engine Parts Manufacturer headquartered in Taiwan. It produces Piston Rings, Oil Rings, Installers of Piston Rings, and also supplies Piston kits, Engine Valves, Oil Seals, Valve Seals, Engine Gasket components, and Automotive Timing Kits in the global vehicle aftermarket.