GB1045219A - Centrifugal gas or liquid pump - Google Patents
Centrifugal gas or liquid pumpInfo
- Publication number
- GB1045219A GB1045219A GB45843/64A GB4584364A GB1045219A GB 1045219 A GB1045219 A GB 1045219A GB 45843/64 A GB45843/64 A GB 45843/64A GB 4584364 A GB4584364 A GB 4584364A GB 1045219 A GB1045219 A GB 1045219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impeller
- radial
- axial
- casing
- overlap
- 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.)
- Expired
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
- 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
- F04D17/165—Axial entry and discharge
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,045,219. Centrifugal gas and liquid pumps. K. D. McMAHAN. Nov. 10, 1964 [Dec. 20, 1963] No. 45843/64. Heading F1C. [Also in Division H2] In a centrifugal gas or liquid pump adjacent passages of a number of volute passages extending around and axially of the impeller have an axial overlap substantially greater than the radial overlap. A single stage blower is shown but the blower may be used in series to form a multi-stage assembly or have a number of stages mounted on a single shaft. The total area of radial overlap of adjacent volute passages 51, expressed as a percentage of the area of the cylindrical surface having the mean diameter and axial width of receiver 45, may be between zero and 15 to 25 %. The total area of axial overlap, expressed as a percentage of the circumferential area between the periphery of the impeller back plate 40 and the wall of the casing part 16, is preferably above 75 %. The addition of the percentage axial and radial overlaps must exceed 75 % and preferably should total 100 % or more, and the ratio of axial overlap to radial overlap must be greater than 2, preferably 4À5 or more. The dead space between radially outer wall 53 and the casing serves for accommodating variations in design. The radial clearance between cut-offs 50 and the discharge ends 43 of the impeller blades 42 is preferably 3 % of the impeller diameter. To reduce noise developed at the cutoffs 50 the angle # between the ends of the upstream edges of each cut off is at least 20 degrees and the ratio of the angle # to the angle # between adjacent impeller blades is at least 1 but preferably less than 2. Moreover, the ratio of the number of impeller blades (nineteen) to cut-offs (five) is a mixed number. The casing parts 16, 17, 18 may be moulded from plastics and are secured together by screws 27 passing through threaded spacers 28 to bosses on casing 17, and screws 56, 58 and vanes 52. The wall 53 of each passage 51 merges with the casing and an inner wall 55 merges with a housing 20 for the driving motor 11. An outlet elbow 60 of each passage 51 has an overextended outer bend 63 to counteract the tendency of the stream, due to centrifugal force, to crowd at the outer bend. A protuberance 62 on the inner bend 61 aids in preventing the stream from breaking away from the bend 61. The casing part 18 has a concentric protuberance 65 and an overextended elbow 64 associated with an overextended and optional guide vane 66, to direct the streams over a curved surface 67 to a common outlet 68. The elbow 64 may be dispensed with and the elbows 60 arranged to direct the streams at any angle between an axial and radial inward direction. Holes (not shown) in a motor support 22 permit free circulation of cooling air or gas around the motor windings 31. To permit manufacture of the blower with different performances, using the same housing and the same basic impeller, the outer diameter of the latter may be reduced in steps. The blower may be mounted in an aperture in a metal panel (not shown) to deliver in either axial direction, by a number of bolts carrying stout washers with tongues engaging the appropriate set of crescent-shaped recesses 77, 77a, or a continuous groove in casing parts 16, 17. In a modification, Fig. 9 (not shown), the impeller peripheral discharge is frustoconical and the cut-offs are inclined to provide constant radial clearance to the discharge ends of the impeller blades. Further, the motor housing has been eliminated to conserve radial space, reduce weight and provide maximum ventilation of the motor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US332087A US3243102A (en) | 1963-12-20 | 1963-12-20 | Centrifugal fluid pump |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1045219A true GB1045219A (en) | 1966-10-12 |
Family
ID=23296682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB45843/64A Expired GB1045219A (en) | 1963-12-20 | 1964-11-10 | Centrifugal gas or liquid pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US3243102A (en) |
JP (1) | JPS498961B1 (en) |
DE (1) | DE1428191A1 (en) |
GB (1) | GB1045219A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491159A1 (en) * | 1980-09-30 | 1982-04-02 | Kuehnle Kopp Kausch Ag | COMPRESSOR, ESPECIALLY FOR AN EXHAUST GAS TURBOCHARGER |
FR2612997A1 (en) * | 1987-03-03 | 1988-09-30 | Gebhardt Gmbh Wilhelm | VENTILATION UNIT AND METHOD FOR MANUFACTURING ITS GUIDE FINS |
GB2220706B (en) * | 1988-07-08 | 1992-10-07 | Caradon Mira Ltd | Regenerative pump. |
CN109356882A (en) * | 2018-11-28 | 2019-02-19 | 苏州弗来特金属制品有限公司 | A kind of movable vane wheel |
CN114922858A (en) * | 2022-07-21 | 2022-08-19 | 成都中科翼能科技有限公司 | Stator structure of low-pressure compressor of gas turbine and assembling method thereof |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3289923A (en) * | 1964-10-30 | 1966-12-06 | American Air Filter Co | Multi-stage pump |
JPS52104523A (en) * | 1976-02-28 | 1977-09-02 | Origuchi Masahiro | Production process and apparatus for secondary concrete products |
DE3923874A1 (en) * | 1989-07-19 | 1991-01-24 | Keller Lufttechnik Gmbh & Co Kg | Ventilator with motor driven bladed wheel - involves formation of axial flow channel to improve performance |
US5296769A (en) * | 1992-01-24 | 1994-03-22 | Electrolux Corporation | Air guide assembly for an electric motor and methods of making |
DE69329396T2 (en) * | 1992-04-14 | 2001-04-12 | Ebara Corp | Pump housing in sheet metal construction |
US5734214A (en) * | 1995-11-09 | 1998-03-31 | Ametek, Inc. | Molded through-flow motor assembly |
US5743710A (en) * | 1996-02-29 | 1998-04-28 | Bosch Automotive Motor Systems Corporation | Streamlined annular volute for centrifugal blower |
US5749704A (en) * | 1997-01-06 | 1998-05-12 | Wagner Spray Tech Corporation | Heat gun fan assembly |
NL1009759C2 (en) * | 1998-07-28 | 2000-02-01 | Vogel Willi Ag | Rotation device. |
WO2003038284A1 (en) * | 2001-11-01 | 2003-05-08 | Ishigaki Company Limited | Turbo pump |
US20070258824A1 (en) * | 2005-02-01 | 2007-11-08 | 1134934 Alberta Ltd. | Rotor for viscous or abrasive fluids |
US7476079B2 (en) * | 2005-08-18 | 2009-01-13 | Continental Automotive Systems Us, Inc. | Low-noise HVAC blower assembly |
JP5410963B2 (en) * | 2006-05-24 | 2014-02-05 | レスメド・モーター・テクノロジーズ・インコーポレーテッド | Compact and low noise efficient blower for CPAP equipment |
AU2008202487B2 (en) | 2007-06-05 | 2013-07-04 | Resmed Motor Technologies Inc. | Blower with Bearing Tube |
DE102007055507A1 (en) * | 2007-11-21 | 2009-06-04 | Georg Emanuel Koppenwallner | Bevel lip spiral |
EP3569277B1 (en) | 2009-08-11 | 2022-01-19 | ResMed Motor Technologies Inc. | Ventilator comprising a single stage, axial symmetric blower |
FR2958347A1 (en) * | 2010-04-01 | 2011-10-07 | Alstom Technology Ltd | CONCRETE VOLUME PUMP |
DE102011005138A1 (en) * | 2011-03-04 | 2012-09-06 | E.G.O. Elektro-Gerätebau GmbH | pump |
US9719525B2 (en) * | 2013-05-23 | 2017-08-01 | Jeffrey Butler Cunnane | Medallion fan |
US10774846B2 (en) * | 2016-06-16 | 2020-09-15 | Design West Technologies, Inc. | Portable, low-power air filtration system |
KR101896173B1 (en) * | 2017-02-01 | 2018-09-07 | 엘지전자 주식회사 | Fan Motor |
KR102333261B1 (en) * | 2017-08-01 | 2021-12-01 | 미쓰비시덴키 가부시키가이샤 | Rotary drive device, assembly method of rotary drive device, axial flow blower, axial flow blower assembly method and laser oscillation device |
JP7047554B2 (en) * | 2018-04-06 | 2022-04-05 | 株式会社Soken | Centrifugal blower |
CN109404305B (en) * | 2018-12-26 | 2023-11-21 | 浙江科贸智能机电股份有限公司 | Bionic blade volute-free centrifugal ventilator |
CN110966247A (en) * | 2019-12-11 | 2020-04-07 | 上海马陆日用友捷汽车电气有限公司 | High-speed impeller pump and impeller thereof |
USD946629S1 (en) | 2020-11-24 | 2022-03-22 | Aquastar Pool Products, Inc. | Centrifugal pump |
USD986289S1 (en) | 2020-11-24 | 2023-05-16 | Aquastar Pool Products, Inc. | Centrifugal pump |
US11193504B1 (en) * | 2020-11-24 | 2021-12-07 | Aquastar Pool Products, Inc. | Centrifugal pump having a housing and a volute casing wherein the volute casing has a tear-drop shaped inner wall defined by a circular body region and a converging apex with the inner wall comprising a blocker below at least one perimeter end of one diffuser blade |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1275672A (en) * | 1918-08-13 | William F M Goss | Locomotive-engine. | |
US2002907A (en) * | 1921-06-08 | 1935-05-28 | Menhorn Inc | Motor pump |
US2139112A (en) * | 1936-12-11 | 1938-12-06 | Lamson Co | Blower |
US2331299A (en) * | 1941-06-13 | 1943-10-12 | Byron Jackson Co | Centrifugal pump |
NL76847C (en) * | 1946-03-06 | |||
US2474611A (en) * | 1946-04-23 | 1949-06-28 | Wylie Thomas | Mounting of fan units in ventilating shafts |
US2476692A (en) * | 1947-12-18 | 1949-07-19 | Samuel M Bernstein | Fan |
US2868440A (en) * | 1953-02-03 | 1959-01-13 | Kenton D Mcmahan | Multi-stage centrifugal blowers, compressors and the like |
-
1963
- 1963-12-20 US US332087A patent/US3243102A/en not_active Expired - Lifetime
-
1964
- 1964-11-10 GB GB45843/64A patent/GB1045219A/en not_active Expired
- 1964-11-20 DE DE19641428191 patent/DE1428191A1/en active Pending
- 1964-12-04 JP JP39067896A patent/JPS498961B1/ja active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491159A1 (en) * | 1980-09-30 | 1982-04-02 | Kuehnle Kopp Kausch Ag | COMPRESSOR, ESPECIALLY FOR AN EXHAUST GAS TURBOCHARGER |
FR2612997A1 (en) * | 1987-03-03 | 1988-09-30 | Gebhardt Gmbh Wilhelm | VENTILATION UNIT AND METHOD FOR MANUFACTURING ITS GUIDE FINS |
GB2220706B (en) * | 1988-07-08 | 1992-10-07 | Caradon Mira Ltd | Regenerative pump. |
CN109356882A (en) * | 2018-11-28 | 2019-02-19 | 苏州弗来特金属制品有限公司 | A kind of movable vane wheel |
CN114922858A (en) * | 2022-07-21 | 2022-08-19 | 成都中科翼能科技有限公司 | Stator structure of low-pressure compressor of gas turbine and assembling method thereof |
CN114922858B (en) * | 2022-07-21 | 2022-09-30 | 成都中科翼能科技有限公司 | Stator structure of low-pressure compressor of gas turbine and assembling method thereof |
Also Published As
Publication number | Publication date |
---|---|
US3243102A (en) | 1966-03-29 |
DE1428191A1 (en) | 1968-11-28 |
JPS498961B1 (en) | 1974-03-01 |
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