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Patent Searching and Data


Title:
MULTISTAGE CENTRIFUGAL FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/049398
Kind Code:
A1
Abstract:
Provided is a multistage centrifugal fluid machine with which the work of assembling an inner casing to a high-pressure-side head flange can be carried out efficiently. The multistage centrifugal fluid machine 100 comprises a rotor 3 to which a plurality of impellers (41–81) are attached in the axial direction, a cylindrical outer casing 2, and an inner bundle 1 that fits together with the outer casing 2 to form a flow path for an operating gas. The inner bundle 1 has a high-pressure-side head flange 11, a low-pressure-side head flange 12, and an inner casing 5 arranged between the high-pressure-side head flange 11 and the low-pressure-side head flange 12. The high-pressure-side head flange 11 and the inner casing 5 are fastened to each other with an elastic body 144 therebetween by means of a first bolt 142.

Inventors:
KUNISHI Hayato (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
NARUSE Tomohiro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
KAZAMA Takeshi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
TAKEDA Kazuo (603. Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
YOSHIMURA Hiroaki (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2018/008242
Publication Date:
March 14, 2019
Filing Date:
March 05, 2018
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
International Classes:
F04D29/42; F04D1/08; F04D17/12
Foreign References:
JP2003269390A2003-09-25
JPH0683988U1994-12-02
JPS5875994U1983-05-23
JPS51325B11976-01-07
JP2014206132A2014-10-30
JPS6067797A1985-04-18
US4961260A1990-10-09
Attorney, Agent or Firm:
POLAIRE I.P.C. (13-11, Nihonbashikayabacho 2-chome Chuo-k, Tokyo 25, 〒1030025, JP)
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