JPS6098196A - Labyrinth seal device for centrifugal type impeller - Google Patents

Labyrinth seal device for centrifugal type impeller

Info

Publication number
JPS6098196A
JPS6098196A JP20477683A JP20477683A JPS6098196A JP S6098196 A JPS6098196 A JP S6098196A JP 20477683 A JP20477683 A JP 20477683A JP 20477683 A JP20477683 A JP 20477683A JP S6098196 A JPS6098196 A JP S6098196A
Authority
JP
Japan
Prior art keywords
labyrinth seal
discharge pressure
spring
gap
centrifugal type
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
JP20477683A
Other languages
Japanese (ja)
Inventor
Haruki Sakai
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 JP20477683A priority Critical patent/JPS6098196A/en
Publication of JPS6098196A publication Critical patent/JPS6098196A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the contact of a labyrinth seal section which is used for a centrifugal impeller in a fluid machine such as, for example, blowers, compressors, etc., due to vibration of a rotor shaft, by making the labyrinth seal section movable automatically in association with the discharge pressure so that the gap of the labyrinth seal section is made large upon starting.
CONSTITUTION: A labyrinth seal 18 having a surface 18a which is opposed to a surface 12 of a side plate 12 of an impeller 11 perpendicular to a rotor shaft 13 and is formed therein with sealing teeth, is formed in its intermediate section with a recess part 18b, and comprises a spring 21 disposed between itself and a projecting section 10a of a casing 10. On the side opposite to the surface 18a of the labyrinth seal 18 there is provided a pressure chamber 16 into which the discharge pressure in a scroll 15 is effected. Since the discharge pressure is low upon starting, the labyrinth seal 18 is moved by the spring 21 in the direction in which the gap of the labyrinth seal 18 increases. However, since the discharge pressure becomes high upon steady state operation, the labyrinth seal moves overcoming the spring 21 in the direction in which the gap decreases.
COPYRIGHT: (C)1985,JPO&Japio
JP20477683A 1983-11-02 1983-11-02 Labyrinth seal device for centrifugal type impeller Pending JPS6098196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20477683A JPS6098196A (en) 1983-11-02 1983-11-02 Labyrinth seal device for centrifugal type impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20477683A JPS6098196A (en) 1983-11-02 1983-11-02 Labyrinth seal device for centrifugal type impeller

Publications (1)

Publication Number Publication Date
JPS6098196A true JPS6098196A (en) 1985-06-01

Family

ID=16496156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20477683A Pending JPS6098196A (en) 1983-11-02 1983-11-02 Labyrinth seal device for centrifugal type impeller

Country Status (1)

Country Link
JP (1) JPS6098196A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398020A (en) * 2013-08-15 2013-11-20 长沙山水节能研究院有限公司 Water pump wear-ring sealing device and wear-ring thereof
JP2017141821A (en) * 2016-02-11 2017-08-17 ゼネラル・エレクトリック・カンパニイ Centrifugal compressor assembly for use in turbine engine and method of assembly thereof
KR20190008368A (en) 2016-06-22 2019-01-23 가부시키가이샤 고베 세이코쇼 Labyrinth seal
KR20190046970A (en) 2016-10-13 2019-05-07 가부시키가이샤 고베 세이코쇼 Labyrinth seal
KR20190046969A (en) 2016-10-13 2019-05-07 가부시키가이샤 고베 세이코쇼 Labyrinth seal

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398020A (en) * 2013-08-15 2013-11-20 长沙山水节能研究院有限公司 Water pump wear-ring sealing device and wear-ring thereof
JP2017141821A (en) * 2016-02-11 2017-08-17 ゼネラル・エレクトリック・カンパニイ Centrifugal compressor assembly for use in turbine engine and method of assembly thereof
CN107061344A (en) * 2016-02-11 2017-08-18 通用电气公司 Centrifugal compressor component and assemble method for turbogenerator
US10227879B2 (en) 2016-02-11 2019-03-12 General Electric Company Centrifugal compressor assembly for use in a turbine engine and method of assembly
KR20190008368A (en) 2016-06-22 2019-01-23 가부시키가이샤 고베 세이코쇼 Labyrinth seal
US11035472B2 (en) 2016-06-22 2021-06-15 Kobe Steel, Ltd. Labyrinth seal
KR20190046970A (en) 2016-10-13 2019-05-07 가부시키가이샤 고베 세이코쇼 Labyrinth seal
KR20190046969A (en) 2016-10-13 2019-05-07 가부시키가이샤 고베 세이코쇼 Labyrinth seal
US11002364B2 (en) 2016-10-13 2021-05-11 Kobe Steel, Ltd. Labyrinth seal
US11085541B2 (en) 2016-10-13 2021-08-10 Kobe Steel, Ltd. Labyrinth seal

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