ENGINE PROVIDED WITH ALUMINUM ALLOY MADE CYLINDER BLOCK

Title:

ENGINE PROVIDED WITH ALUMINUM ALLOY MADE CYLINDER BLOCK

Document Type and Number:

Japanese Patent JPH10274092

Kind Code:

A

Abstract:

To ensure sufficient seizing resistance performance and low frictional resistance with assembly of a piston without iron plating while providing with abrasion resistance performance to sliding of a piston ring.

In a bore sliding part of an aluminum alloy made cylinder block 1, a nickel chrome metal porous body 11 is compounded with an aluminum alloy 12, and a piston 2 formed of aluminum alloy for a normal piston is slidably fitted. Nitride (GN) layer is formed on an outer peripheral surface of a steel made (SUS) piston ring 3 which is fitted to a ring groove 21 arranged on the piston 2 as a substrate layer 4 for covering the whole thereof, and a ceramic particle dispersion nickel-phosphorus-cobalt(CPN) plating layer 5 is formed on a surface which is brought into sliding-contact with the bore sliding part, namely, with nickel-chrome metal porous body 11.

Inventors:

SUGIMOTO YUKIHIRO
SAKATE NOBUO
NOMURA SEIJI
ODA NOBUYUKI

Application Number:

JP9273297A

Publication Date:

October 13, 1998

Filing Date:

March 28, 1997

Export Citation:

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Assignee:

MAZDA MOTOR

International Classes:

F02F1/00; C23C28/00; C23C30/00; F02F3/10; F02F5/00; F16J1/01; F16J10/00; (IPC1-7): F02F1/00; C23C28/00; C23C30/00; F02F3/10; F02F5/00; F16J1/01; F16J10/00

Attorney, Agent or Firm:

Shoichi Kuruki

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