JPS5564194A - Impeller - Google Patents

Impeller

Info

Publication number
JPS5564194A
JPS5564194A JP13789978A JP13789978A JPS5564194A JP S5564194 A JPS5564194 A JP S5564194A JP 13789978 A JP13789978 A JP 13789978A JP 13789978 A JP13789978 A JP 13789978A JP S5564194 A JPS5564194 A JP S5564194A
Authority
JP
Japan
Prior art keywords
boss
driving
impeller
extended
core plate
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
JP13789978A
Other languages
Japanese (ja)
Inventor
Takao Tomachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
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 JP13789978A priority Critical patent/JPS5564194A/en
Publication of JPS5564194A publication Critical patent/JPS5564194A/en
Pending legal-status Critical Current

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To improve transfer efficiency of a driving torque by utilizing centrifugal force of an impeller, for which the boss inner periphery is extended at driving side but shortened at driven side.
CONSTITUTION: An impeller 6 comprises a boss 3, a core plate 2 mounted on a rotary shaft 1 by way of the boss 3, a vane 4 arrayed in a given number on the core plate 2, and an annular side plate 5 mounted oppositely to the core plate 2 by way of the vane 4, each member being fixed through welding or integrated through casting. The inner periphery of the boss 3 is extended axially on the driving side A at its portion with a constant wall thickness but shortened axially on the driven side B working as a suction side. Namely, only a part of the thickness of a cylindrical portion is extended or shortened axially. When the impeller runs, a centrifugal force arises in the neighborhood of the end 3b of driven side, which intensifies a face pressure on the driving side to keep the shaft 1 and the boss 3 fitted in good condition, thus improving torque driving efficiency.
COPYRIGHT: (C)1980,JPO&Japio
JP13789978A 1978-11-10 1978-11-10 Impeller Pending JPS5564194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13789978A JPS5564194A (en) 1978-11-10 1978-11-10 Impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13789978A JPS5564194A (en) 1978-11-10 1978-11-10 Impeller

Publications (1)

Publication Number Publication Date
JPS5564194A true JPS5564194A (en) 1980-05-14

Family

ID=15209271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13789978A Pending JPS5564194A (en) 1978-11-10 1978-11-10 Impeller

Country Status (1)

Country Link
JP (1) JPS5564194A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7452187B2 (en) * 2005-08-09 2008-11-18 Praxair Technology, Inc. Compressor with large diameter shrouded three dimensional impeller
US7563074B2 (en) 2005-09-13 2009-07-21 Ingersoll-Rand Company Impeller for a centrifugal compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7452187B2 (en) * 2005-08-09 2008-11-18 Praxair Technology, Inc. Compressor with large diameter shrouded three dimensional impeller
US7563074B2 (en) 2005-09-13 2009-07-21 Ingersoll-Rand Company Impeller for a centrifugal compressor

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