EP0187645A3 - Centrifugal, inline, opposed balance gas blower - Google Patents

Centrifugal, inline, opposed balance gas blower Download PDF

Info

Publication number
EP0187645A3
EP0187645A3 EP86100069A EP86100069A EP0187645A3 EP 0187645 A3 EP0187645 A3 EP 0187645A3 EP 86100069 A EP86100069 A EP 86100069A EP 86100069 A EP86100069 A EP 86100069A EP 0187645 A3 EP0187645 A3 EP 0187645A3
Authority
EP
European Patent Office
Prior art keywords
blower
gas
shaft
centrifugal
chamber
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.)
Withdrawn
Application number
EP86100069A
Other languages
German (de)
French (fr)
Other versions
EP0187645A2 (en
Inventor
Alexander Greenspan
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0187645A2 publication Critical patent/EP0187645A2/en
Publication of EP0187645A3 publication Critical patent/EP0187645A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/424—Double entry casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/162—Double suction pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports

Abstract

A centrifugal blower for use in moving gas at relatively high flow rates through a shaft within the housing for rotation therein, the housing having a pair of axially spaced plenum chambers with opposed impellers mounted on the shaft in secured relation and disposed in the respective chamber, for rotation with respect thereto to pressurize the gas. The blower is capable of providing a vacuum up to 18 inches of mercury at its inlet. A gas inlet for supplying gas to the blower chamber and a gas outlet for exiting pressurized gas from the blower chamber is provided for each of the chambers, with the gas inlet and the gas outlet being disposed in line, crosswise of the shaft, whereby minimum thrust forces are applied to the blower during operation thereof, resulting in a relatively long service life for the blower and especially the shaft bearings. The blower con­ struction is such that the shaft bearings may be expeditiously replaced if that becomes desirable or necessary, without disassembly of the entire blower.
EP86100069A 1985-01-08 1986-01-03 Centrifugal, inline, opposed balance gas blower Withdrawn EP0187645A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68964285A 1985-01-08 1985-01-08
US689642 1985-01-08

Publications (2)

Publication Number Publication Date
EP0187645A2 EP0187645A2 (en) 1986-07-16
EP0187645A3 true EP0187645A3 (en) 1988-06-15

Family

ID=24769333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100069A Withdrawn EP0187645A3 (en) 1985-01-08 1986-01-03 Centrifugal, inline, opposed balance gas blower

Country Status (3)

Country Link
EP (1) EP0187645A3 (en)
JP (1) JPS61205394A (en)
IL (1) IL77481A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6532271B2 (en) * 2015-04-20 2019-06-19 株式会社マキタ Backed type air blower work machine
CN108131309A (en) * 2018-02-10 2018-06-08 江苏星宇户外休闲用品有限公司 A kind of bidirectional electric inflator pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191403626A (en) * 1914-02-12 1914-10-15 Percy William Allday Improvements in Centrifugal Fans.
GB191508156A (en) * 1914-06-06 1916-06-02 Oerlikon Maschf Multiple Stage Blower.
GB854127A (en) * 1957-06-28 1960-11-16 Power Jets Res & Dev Ltd Improvements in or relating to radial-flow compressors and turbines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191403626A (en) * 1914-02-12 1914-10-15 Percy William Allday Improvements in Centrifugal Fans.
GB191508156A (en) * 1914-06-06 1916-06-02 Oerlikon Maschf Multiple Stage Blower.
GB854127A (en) * 1957-06-28 1960-11-16 Power Jets Res & Dev Ltd Improvements in or relating to radial-flow compressors and turbines

Also Published As

Publication number Publication date
JPS61205394A (en) 1986-09-11
EP0187645A2 (en) 1986-07-16
IL77481A (en) 1991-06-30

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