KR840004218A - piston ring - Google Patents

Abstract

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Description

piston ring

As this is a public information case, the full text was not included.

1 is a plan view of a piston ring in accordance with the principles of the invention;

FIG. 2 is a partial vertical section along 2-2 of FIG.

3 is a partially enlarged view of the piston ring shown in FIG.

Claims (10)

A split annular metal body having axial sidewalls 24 and 26 and an outer circumferential surface 22 to be installed in a ring groove, extending partially around the outer circumferential surface, and partially formed by lands 40 and 42 axially disposed on the outer circumferential surface. The grooves to be determined, a band 38 in which the grooves are filled with abrasion-resistant material for sealing engagement with the cylinder wall, the planes 70, 52 extending radially and opposed to each other at an acute angle with the central plane of the ring. And lands facing and adjacent to the axial ends of the strips, respectively, the plane ends at one of the lands on the outer circumferential surface 22. Piston ring (20). 2. The piston ring (20) according to claim 1, having a portion (84) which functions as a piston compression ring of the reciprocating piston engine and indicates the direction of installation in the piston groove so that one of the lands faces the cylinder combustion chamber direction. 3. The piston ring (20) according to claim 2, wherein at the seam the plane (52, 70) ends at a radially inner end in the side wall away from one of the lands. 4. The groove according to claim 3, wherein the joint surfaces (52, 70) extend circumferentially from a corresponding end face defining one radial face of the ring gap to another corresponding end face defining another radially outer face of the ring gap. And said banded piston ring (20) extending along the entire circumferential direction along the circumferential surface and wherein the axially extending end end is exposed in the gap. The piston ring (20) according to claim 1, 2 or 4, wherein the outer circumferential surface has a curved surface such that the maximum outer diameter of the ring is within the outer wear surface of the metal. The piston ring (20) according to claim 1, 2 or 4, wherein one of the lands is wider than the other land. Piston ring (20) according to claim 1, 2 or 4, which is wedge shaped in cross section. 6. The piston ring (20) according to claim 5, wherein the center of the axial size of the land is shifted further away from one of the lands from the central surface of the ring body toward the ring side wall. A metal body having an outer circumferential surface and a cracked annular body, a wear-resistant metal band 38 sealingly coupled to the cylinder wall and extending circumferentially around the outer circumferential surface, extending in the radial direction of the ring cross section, and having a particularly large axial area of the outer circumferential surface. The overlapping structure at the split end of the ring, which consists of opposing planes 52, 70 ending at the land, and the band has an axial size smaller than the outer circumferential surface of the ring and from the center plane of the ring. A piston ring (20) for a reciprocating piston of an internal combustion engine, wherein the lands (40, 42) are shifted in the axial direction and have widths along both sides of the band (38) in the outer circumferential surface (22). 9. The piston ring (20) according to claim 8, wherein the outer circumferential surface is curved so that the maximum outer diameter of the outer circumferential surface is located at the center of the belt (38). ※ Note: The disclosure is based on the initial application.