Title:
CAMSHAFT
Document Type and Number:
Japanese Patent JP3777079
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a camshaft with improved durability and reliability by forming plural cams different in mode of contacting a counter member to have characteristics according to the contact mode.
SOLUTION: This camshaft is provided with plural cams different in mode of contacting a counter member, and a first cam 3 brought into sliding contact with the counter members 5, 6 and a second cam 4 brought into rolling contact with the same. The first cam 3 is formed by conducting surface treatment for giving scuffing resistance for a pitching resisting sintered alloy, and the second cam 4 is formed by pitching resisting sintered alloy or pitching resisting steel subjected to quench-and-temper treatment.
Inventors:
Shuichi Tamaki
Takashi Kishitani
Ogawa Eiji
Takashi Kishitani
Ogawa Eiji
Application Number:
JP2000045071A
Publication Date:
May 24, 2006
Filing Date:
February 17, 2000
Export Citation:
Assignee:
Nippon Piston Ring Co., Ltd.
International Classes:
F01L1/04; F16H53/02; B22F3/24; B22F5/00; (IPC1-7): F16H53/02; B22F3/24; F01L1/04
Domestic Patent References:
| JP11229824A | ||||
| JP2277905A | ||||
| JP61063383A | ||||
| JP6101436A | ||||
| JP510340A | ||||
| JP2000144341A | ||||
| JP58191458U |
Attorney, Agent or Firm:
Yasuo Ishikawa