Friction Characteristics of Piston and Piston Rings

Yutaro Wakuri, Tatsumi Kitahara, Toshiro Hamatake, Mitsuhiro Soejima, Shinichi Ide

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In internal combustion engines, one of the most important issues is to clarify the complicated friction characteristics of piston and piston rings because of the demand for improved fuel economy through the reduction in friction loss. In the present study, the floating liner method, in which the cylinder liner was supported by means of hydrostatic bearings, was developed to measure the friction force of piston and piston rings in an operating diesel engine. The decreases in either the number or the width of piston rings, the piston skirt area, and the lubricating oil viscosity were effective in reducing total friction loss, but these increased the boundary friction at the beginning of the power stroke. The boundary friction could be reduced by either a surface treatment on the piston and the piston ring or a friction modifier in the lubricating oil. The reduction in total friction loss was more significant when decreasing the total piston ring tension rather than changing the piston specification.

Original languageEnglish
Pages (from-to)676-682
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Volume64
Issue number618
DOIs
Publication statusPublished - Jan 1 1998
Externally publishedYes

Fingerprint

Piston rings
Pistons
Friction
Lubricating oils
Hydrostatic bearings
Fuel economy
Engine cylinders
Internal combustion engines
Diesel engines
Surface treatment
Viscosity
Specifications

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Friction Characteristics of Piston and Piston Rings. / Wakuri, Yutaro; Kitahara, Tatsumi; Hamatake, Toshiro; Soejima, Mitsuhiro; Ide, Shinichi.

In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Vol. 64, No. 618, 01.01.1998, p. 676-682.

Research output: Contribution to journalArticle

Wakuri, Yutaro ; Kitahara, Tatsumi ; Hamatake, Toshiro ; Soejima, Mitsuhiro ; Ide, Shinichi. / Friction Characteristics of Piston and Piston Rings. In: Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C. 1998 ; Vol. 64, No. 618. pp. 676-682.
@article{3b1eec26f0cf4047a691682f45561552,
title = "Friction Characteristics of Piston and Piston Rings",
abstract = "In internal combustion engines, one of the most important issues is to clarify the complicated friction characteristics of piston and piston rings because of the demand for improved fuel economy through the reduction in friction loss. In the present study, the floating liner method, in which the cylinder liner was supported by means of hydrostatic bearings, was developed to measure the friction force of piston and piston rings in an operating diesel engine. The decreases in either the number or the width of piston rings, the piston skirt area, and the lubricating oil viscosity were effective in reducing total friction loss, but these increased the boundary friction at the beginning of the power stroke. The boundary friction could be reduced by either a surface treatment on the piston and the piston ring or a friction modifier in the lubricating oil. The reduction in total friction loss was more significant when decreasing the total piston ring tension rather than changing the piston specification.",
author = "Yutaro Wakuri and Tatsumi Kitahara and Toshiro Hamatake and Mitsuhiro Soejima and Shinichi Ide",
year = "1998",
month = "1",
day = "1",
doi = "10.1299/kikaic.64.676",
language = "English",
volume = "64",
pages = "676--682",
journal = "Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C",
issn = "0387-5024",
publisher = "The Japan Society of Mechanical Engineers",
number = "618",

}

TY - JOUR

T1 - Friction Characteristics of Piston and Piston Rings

AU - Wakuri, Yutaro

AU - Kitahara, Tatsumi

AU - Hamatake, Toshiro

AU - Soejima, Mitsuhiro

AU - Ide, Shinichi

PY - 1998/1/1

Y1 - 1998/1/1

N2 - In internal combustion engines, one of the most important issues is to clarify the complicated friction characteristics of piston and piston rings because of the demand for improved fuel economy through the reduction in friction loss. In the present study, the floating liner method, in which the cylinder liner was supported by means of hydrostatic bearings, was developed to measure the friction force of piston and piston rings in an operating diesel engine. The decreases in either the number or the width of piston rings, the piston skirt area, and the lubricating oil viscosity were effective in reducing total friction loss, but these increased the boundary friction at the beginning of the power stroke. The boundary friction could be reduced by either a surface treatment on the piston and the piston ring or a friction modifier in the lubricating oil. The reduction in total friction loss was more significant when decreasing the total piston ring tension rather than changing the piston specification.

AB - In internal combustion engines, one of the most important issues is to clarify the complicated friction characteristics of piston and piston rings because of the demand for improved fuel economy through the reduction in friction loss. In the present study, the floating liner method, in which the cylinder liner was supported by means of hydrostatic bearings, was developed to measure the friction force of piston and piston rings in an operating diesel engine. The decreases in either the number or the width of piston rings, the piston skirt area, and the lubricating oil viscosity were effective in reducing total friction loss, but these increased the boundary friction at the beginning of the power stroke. The boundary friction could be reduced by either a surface treatment on the piston and the piston ring or a friction modifier in the lubricating oil. The reduction in total friction loss was more significant when decreasing the total piston ring tension rather than changing the piston specification.

UR - http://www.scopus.com/inward/record.url?scp=0012609136&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0012609136&partnerID=8YFLogxK

U2 - 10.1299/kikaic.64.676

DO - 10.1299/kikaic.64.676

M3 - Article

VL - 64

SP - 676

EP - 682

JO - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 618

ER -