Title:
【発明の名称】内燃機関のシリンダスリーブとピストンの組合せ
Document Type and Number:
Japanese Patent JP2552523
Kind Code:
B2
Abstract:
PURPOSE:To obtain an internal combustion engine excellent in durability by providing a cylinder sleeve made of a sintered aluminum alloy having specific composition excellent in heat resistance and wear and abrasion resistance and a piston made of aluminum alloy comprising the external peripheral surface of the skirt thereof coated with specific heat resistant resin. CONSTITUTION:The cylinder sleeve fittedly secured to the cylinder block of an internal combustion engine shall be made of a sintered aluminum alloy. This aluminum alloy is made by press-molding powder comprising aluminum alloy powder composed of primary Si whose grain diameter is 20mum or less, Si, Cu, Mg, and Fe compounded at a specific rate respectively, aluminum and inevitable impurity mixed with aluminum oxide powder of 1 through 5 weight % composed of spherical particles of 1 through 10mum in average particle diameter uniformly and then sintering or hot working it. On the other hand, the piston made of an aluminum alloy and fittedly secured to this sleeve is constituted with the external peripheral surface coated with heat resistant resin in which at least one kind of powder out of MoS2 powder, thermosetting fluorocarbon resin and others dispersedly added.
Inventors:
KOYA EITARO
SUZUKI TATSUO
SUZUKI TATSUO
Application Number:
JP7825288A
Publication Date:
November 13, 1996
Filing Date:
April 01, 1988
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F02F1/00; C22C1/05; C22C21/02; F02F3/00; F02F7/00; F16J1/02; F16J10/04; (IPC1-7): F02F3/00; C22C1/05; F02F1/00; F16J1/02; F16J10/04
Attorney, Agent or Firm:
Nozomu Ehara (1 person outside)