Title:
MULTISTAGE PUMP
Document Type and Number:
Japanese Patent JP3589775
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a multistage pump which decreases a number of part items, eliminates necessity for a time in assembly and prevents even generation of crevice corrosion and stress corrosion, with a life characteristic excellent further with manufacture inexpensively capable.
SOLUTION: An intermediate casing 8 provided between a suction casing and a delivery casing is constituted by a sheet metal-made casing main unit 20 integrally having a cylindrical peripheral wall 21 and its continued partitioning wall 22 and a synthetic resin-made guide vane part 30 fixed to the casing main unit 20 also to have a guide water passage 34 provided with a guide vane 33 and to integrally have a bush part 37 and a liner ring part 35 into slide contact with an impeller.
Inventors:
Toshiya Nakamura
Satoru Shinbo
Masayuki Abe
Satoru Shinbo
Masayuki Abe
Application Number:
JP3219496A
Publication Date:
November 17, 2004
Filing Date:
February 20, 1996
Export Citation:
Assignee:
Kawamoto Manufacturing Co., Ltd.
International Classes:
F04D1/08; F04D13/08; F04D29/44; (IPC1-7): F04D1/08; F04D13/08; F04D29/44
Domestic Patent References:
| JP524998U |
Attorney, Agent or Firm:
Takehiko Suzue
Previous Patent: METHOD FOR MEASURING SHAPE OF HIGHLY ACCURATE PLANE
Next Patent: INTERNAL COMBUSTION TYPE GAS LIGHTER
Next Patent: INTERNAL COMBUSTION TYPE GAS LIGHTER