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Patent Searching and Data


Title:
CYLINDER LINER
Document Type and Number:
Japanese Patent JPS5517760
Kind Code:
A
Abstract:
PURPOSE:To prevent the damage of a sliding surface, by mechanically romoving at least a crystal layer out of a chemical synthesis layer formed at an inner circumference surface of a cylinder liner, and by leaving the chemical synthesis layer at the inside of an etching pocket provided as a result of a phosphate treatment. CONSTITUTION:When a cylinder liner 1 is immersed in a phosphate solution, a reaction of a formula I is performed, and a surface of the cylinder liner is soluted as hydrogen is produced. Simultaneously a crystalline nucleus of iron phosphate is produced, and crystalline particles are formed as a result of the uncleus gradually growing and being combined. The reaction system forms a porous chemical synthesis layer at the inside of and at the surroundings of an etching pocket 2. And thus, a crystalline layer 4 containing the crystalline particles 3 in the chemical synthesis layer 6, which may damage a piston, is previously removed from the inner circumferential surface of the cylinder liner, and as a result the outer circumferential surface of the piston, the liner sliding surface, and the inner circumferential surface of the cylinder liner can be previously prevented from being damaged.

Inventors:
MURATA KATSUHIRO
ARIGA KAZUYOSHI
HARAYAMA AKIRA
KAWASAKI YOSHITOMO
ITOU MITSUSACHI
Application Number:
JP9038278A
Publication Date:
February 07, 1980
Filing Date:
July 26, 1978
Export Citation:
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Assignee:
TEIKOKU PISTON RING CO LTD
International Classes:
F02F1/00; F02F1/18; F16J10/04; (IPC1-7): F02F1/18; F16J10/04
Domestic Patent References:
JPS51136313U1976-11-04