Title:
BEARING STRUCTURE OF PUMP SHAFT FOR ENGINE
Document Type and Number:
Japanese Patent JP3319214
Kind Code:
B2
Abstract:
PURPOSE: To improve durability of an oil seal in the bearing structure of a pump shaft for an engine by surety preventing a pressure rise in the void between the oil seal and the bush.
CONSTITUTION: This bearing structure on the water pump 18 side is provided with a bush 8 fitted to a crankcase 6a and rotatably supporting a pump shaft 4, and an oil seal 10 built in a crankcase 6b on the outward of the bush 8 and sealing the outer circumferential face of the shaft 4. A nearly annular void 12 is formed around the pump shaft 4 between the oil seal 10 and the bush 8. The crankcase 6b is provided with a bypass hole 16 communicating together a gear chamber 14 and the void 12.
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Inventors:
Atsushi Ikeya
Shoichi Akita
Hiroyuki Maeshima
Shoichi Akita
Hiroyuki Maeshima
Application Number:
JP9348495A
Publication Date:
August 26, 2002
Filing Date:
April 19, 1995
Export Citation:
Assignee:
Suzuki Motor Corporation
International Classes:
F01M1/06; F01M1/02; F01P5/12; F02B67/00; (IPC1-7): F01M1/02; F01P5/12; F02B67/00
Domestic Patent References:
| JP63191236U | ||||
| JP3129708U |
Attorney, Agent or Firm:
Eisuke Fujimoto (1 person outside)
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