Title:
DRAIN STRUCTURE OF SMALL PUMP
Document Type and Number:
Japanese Patent JP3547228
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To integrally form a drain passage by die casting.
SOLUTION: This structure is furnished with a drive shaft 9 axially supported through a shaft hole 17 formed on a body 1, a suction port hole 11 formed in a direction orthogonal with the drive shaft 9 and communicating the suction side of a pump and the outside to each other, an oil seal 18 arranged on an end part of the shaft hole 17 from which the drive shaft 9 is projected outside, a drain groove 50 arranged in an inner periphery of the shaft hole 17 between the end part of the shaft hole 17 and at least an extension of the suction port hole 11 and in parallel with an axis of the drive shaft 9 and a drain passage 51 rectilinearly extended on the extension of the suction port hole 11 and communicating the suction port hole 11 and the drain groove 50 to each other.
Inventors:
Tetsuji Hayashi
Kenichi Hisaya
Kenichi Hisaya
Application Number:
JP22262695A
Publication Date:
July 28, 2004
Filing Date:
August 08, 1995
Export Citation:
Assignee:
Kayaba Industry Co., Ltd.
International Classes:
F04C15/00; F04C2/344; (IPC1-7): F04C15/00; F04C2/344
Domestic Patent References:
| JP50021001B1 | ||||
| JP63167089A | ||||
| JP1023675B2 |
Attorney, Agent or Firm:
Masaki Goto
Yoshio Matsuda
Yoshio Matsuda
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