JPS55161992A - Device for reducing thrust of shaft of centrifugal fluid machine - Google Patents

Device for reducing thrust of shaft of centrifugal fluid machine

Info

Publication number
JPS55161992A
JPS55161992A JP6896679A JP6896679A JPS55161992A JP S55161992 A JPS55161992 A JP S55161992A JP 6896679 A JP6896679 A JP 6896679A JP 6896679 A JP6896679 A JP 6896679A JP S55161992 A JPS55161992 A JP S55161992A
Authority
JP
Japan
Prior art keywords
blades
static
impeller
casing
dynamic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6896679A
Other languages
Japanese (ja)
Inventor
Teiji Tanaka
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6896679A priority Critical patent/JPS55161992A/en
Publication of JPS55161992A publication Critical patent/JPS55161992A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simply reduce the thrust of a shaft, by providing back blades which comprise dynamic back blades on the side wall of an impeller and static back blades on a casing and are placed on at least one of the obverse and reverse sides of the impeller to regulate the distribution of static pressure.
CONSTITUTION: Dynamic back blades 11 are provided on the outer part of the back wall 1C of an impeller 1. Static back blades 12 are provided on a casing 4 near the inner part of the back wall 1C. In the gap defined by the dynamic back blades 11 and the casing 4, static pressure falls inwards in the radial direction due to a swirl caused by the dynamic back blades 11, as shown by a one-dot chain line in Fig. In the gas defined by the casing 4 and the static back blades 12, a static pressure fall is reduced because a swirl is suppressed by the static back blades 12, as shown by a two-dot chain line in Fig. Near the bottm of the impeller, the static pressure is higher than that in a case without static back blades.
COPYRIGHT: (C)1980,JPO&Japio
JP6896679A 1979-06-04 1979-06-04 Device for reducing thrust of shaft of centrifugal fluid machine Pending JPS55161992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6896679A JPS55161992A (en) 1979-06-04 1979-06-04 Device for reducing thrust of shaft of centrifugal fluid machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6896679A JPS55161992A (en) 1979-06-04 1979-06-04 Device for reducing thrust of shaft of centrifugal fluid machine

Publications (1)

Publication Number Publication Date
JPS55161992A true JPS55161992A (en) 1980-12-16

Family

ID=13388916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6896679A Pending JPS55161992A (en) 1979-06-04 1979-06-04 Device for reducing thrust of shaft of centrifugal fluid machine

Country Status (1)

Country Link
JP (1) JPS55161992A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113599A (en) * 1981-12-28 1983-07-06 Hitachi Ltd Centrifugal blower
JPS636366A (en) * 1986-06-25 1988-01-12 Hitachi Ltd Receiver for refrigerator
JPS6352991U (en) * 1986-09-25 1988-04-09
WO2018190239A1 (en) * 2017-04-10 2018-10-18 日本電産サンキョー株式会社 Pump device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134561A (en) * 1974-09-17 1976-03-24 Amano Pharma Co Ltd JOKAZAI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5134561A (en) * 1974-09-17 1976-03-24 Amano Pharma Co Ltd JOKAZAI

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113599A (en) * 1981-12-28 1983-07-06 Hitachi Ltd Centrifugal blower
JPS636366A (en) * 1986-06-25 1988-01-12 Hitachi Ltd Receiver for refrigerator
JPS6352991U (en) * 1986-09-25 1988-04-09
WO2018190239A1 (en) * 2017-04-10 2018-10-18 日本電産サンキョー株式会社 Pump device
KR20180123706A (en) * 2017-04-10 2018-11-19 니혼 덴산 산쿄 가부시키가이샤 Pump device
CN109196229A (en) * 2017-04-10 2019-01-11 日本电产三协株式会社 Pump installation

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