HALF THRUST BEARING
First Claim
1. A half thrust bearing for receiving an axial force of a crankshaft of an internal combustion engine, the half thrust bearing having a semi-annular shape and having a sliding surface for receiving the axial force and a back surface opposite to the sliding surface,wherein the sliding surface comprises a plurality of recesses, each recess having a recess surface,wherein the recess surface is recessed from the sliding surface toward the hack surface of the half thrust bearing and is convex toward the back surface of the half thrust bearing in cross-sectional view in a circumferential direction of the half thrust bearing, andwherein the recess surface comprises a plurality of circumferential grooves, the circumferential grooves being recessed from the recess surface toward the back surface of the half thrust bearing, and the circumferential grooves extending along the circumferential direction of the half thrust bearing so that smooth surfaces and the circumferential grooves are alternately arranged on the recess surface.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a semi-annular-shaped half thrust bearing having a sliding surface for receiving an axial force and a back surface opposite to the sliding surface. The sliding surface includes a plurality of recesses. Each recess has a recess surface recessed from the sliding surface toward the back surface of the half thrust bearing. The recess surface is convex toward the back surface of the half thrust bearing in cross-sectional view in a circumferential direction of the half thrust bearing. The recess surface includes a plurality of circumferential grooves recessed from the recess surface toward the back surface of the half thrust bearing. The circumferential grooves extend along the circumferential direction of the half thrust bearing, and smooth surfaces and the circumferential grooves are alternately arranged on the recess surface.
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Citations
10 Claims
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1. A half thrust bearing for receiving an axial force of a crankshaft of an internal combustion engine, the half thrust bearing having a semi-annular shape and having a sliding surface for receiving the axial force and a back surface opposite to the sliding surface,
wherein the sliding surface comprises a plurality of recesses, each recess having a recess surface, wherein the recess surface is recessed from the sliding surface toward the hack surface of the half thrust bearing and is convex toward the back surface of the half thrust bearing in cross-sectional view in a circumferential direction of the half thrust bearing, and wherein the recess surface comprises a plurality of circumferential grooves, the circumferential grooves being recessed from the recess surface toward the back surface of the half thrust bearing, and the circumferential grooves extending along the circumferential direction of the half thrust bearing so that smooth surfaces and the circumferential grooves are alternately arranged on the recess surface.
Specification