Title:
MANUFACTURE OF CERAMIC PISTON PIN
Document Type and Number:
Japanese Patent JP2678349
Kind Code:
B2
Abstract:
PURPOSE: To provide a piston pin which is lightweight and highly strong and reliable in the practical use at a low cost by fitting a non-sintered rib to a non-sintered piston pin body, and sintering the fitted one in manufacturing a ceramic piston pin wherein a rib is provided in the radial direction of an inner wall of the piston pin body.
CONSTITUTION: A ceramic piston pin 1 is provided with a rib 4 to support the stress which is radially exerted on the position corresponding to an edge 12 of a boss part of a piston 9 and an edge 13 of a small end part of a connecting rod. In manufacturing this piston pin 1, a non-sintered rib 4 is fitted to a non-sintered piston pin body, and then sintered. A plate body 5 which supports a circumferential wall 3 from the inside, is provided with an air hole 6 to discharge the air during the sintering, and is approximately as large in diameter as an inner wall of the piston pin 1 is fitted to the position opposite to the rib 4. In this piston pin 1, the thickness corresponding to the edge 12 of the boss part of the piston 9 and the edge 13 of the small end part of the connecting rod is larger than that of other parts.
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Inventors:
Takio Kojima
Application Number:
JP30324094A
Publication Date:
November 17, 1997
Filing Date:
November 10, 1994
Export Citation:
Assignee:
Nippon Special Ceramics Co., Ltd.
International Classes:
F02F3/00; F16J1/16; (IPC1-7): F16J1/16; F02F3/00
Domestic Patent References:
| JP61215861A | ||||
| JP5842864A |