GB798480A - Improvements in or relating to centrifugal compressors - Google Patents
Improvements in or relating to centrifugal compressorsInfo
- Publication number
- GB798480A GB798480A GB1931355A GB1931355A GB798480A GB 798480 A GB798480 A GB 798480A GB 1931355 A GB1931355 A GB 1931355A GB 1931355 A GB1931355 A GB 1931355A GB 798480 A GB798480 A GB 798480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- hub
- inducer
- impeller
- shroud
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
- F02C3/10—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with another turbine driving an output shaft but not driving the compressor
- F02C3/103—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with another turbine driving an output shaft but not driving the compressor the compressor being of the centrifugal type
-
- 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
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- 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
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
- F04D29/285—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
798,480. Centrifugal compressors. CHRYSLER CORPORATION. July 4, 1955, No. 19313/55. Class 110 (1). A centrifugal compressor comprises blades extending generally radially from an impeller hub and supported thereby against axial and rotational movement relative to the hub but supported against radial movement only by an annular shroud closely encircling the radially outer ends of the blades. A compressor comprises an impeller hub 61, Fig. 1A, and an inducer hub 17, held together and to the rotor 35 of the driving turbine by means of a tie-rod 44 screwed into the hub 17 at 65. The inducer shroud 58 is supported at 55 by the impeller shroud 48, the connection being by brazing or a force fit. Inducer blades 72, 73 may be attached to the hub 17 by means of integral portions 70 which fit into slots in the hub. Preferably, the slots are formed so that the chordal lines of blades 72 are nearer the axial direction than those of blades 73, and the exit angle of blades 72 may be substantially equal to the entrance angle of the impeller blades 45. The chord length of the inducer blades is substantially proportional to the radial distance from the impeller axis. The inducer blades may be of plastics material and of aerofoil or laminar section. In the embodiment shown in Fig. 2, inducer blades 156, 172, 173 are carried by hubs 155, 161, 165 respectively, the hubs being secured to the shaft 44 by a key 175 and a nut 167. The impeller 112 is fixed to the shaft 44 by pins 152 and a flanged member 153. The blades 156 form continuations of the impeller blades 145 and may be cast integral with the inducer shroud 158 and hub 155 or welded thereto. The blades 172, 173 are supported by pins 174 engaging holes in the shroud 158 and by root portions which engage slots in the hubs 161, 165 and respectively abut against an axial extension 164 of the hub 165 and against the nut 167. In a further embodiment, the inducer blades are formed with roots 271, Fig. 5A, which fit into slots in the respective hubs, axial displacement being prevented by engagement of the roots against the adjacent hubs or hub-securing nut. As before, the blades may be supported at their outer ends by pins engaging the inducer shroud.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1931355A GB798480A (en) | 1955-07-04 | 1955-07-04 | Improvements in or relating to centrifugal compressors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1931355A GB798480A (en) | 1955-07-04 | 1955-07-04 | Improvements in or relating to centrifugal compressors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB798480A true GB798480A (en) | 1958-07-23 |
Family
ID=10127309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1931355A Expired GB798480A (en) | 1955-07-04 | 1955-07-04 | Improvements in or relating to centrifugal compressors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB798480A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994002742A1 (en) * | 1992-07-20 | 1994-02-03 | Allied-Signal Inc. | Rotary compressor with stepped cover contour |
EP0593797A1 (en) * | 1992-10-17 | 1994-04-27 | Asea Brown Boveri Ag | Stabilizing device for the increase of the surge margin of a compressor |
WO2004104422A1 (en) * | 2003-05-15 | 2004-12-02 | Robert Bosch Gmbh | Device for the compression of combustion air |
US9574562B2 (en) | 2013-08-07 | 2017-02-21 | General Electric Company | System and apparatus for pumping a multiphase fluid |
US10018205B2 (en) | 2012-11-28 | 2018-07-10 | Napier Turbochargers Limited | Impeller shaft |
CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
-
1955
- 1955-07-04 GB GB1931355A patent/GB798480A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994002742A1 (en) * | 1992-07-20 | 1994-02-03 | Allied-Signal Inc. | Rotary compressor with stepped cover contour |
US5304033A (en) * | 1992-07-20 | 1994-04-19 | Allied-Signal Inc. | Rotary compressor with stepped cover contour |
EP0593797A1 (en) * | 1992-10-17 | 1994-04-27 | Asea Brown Boveri Ag | Stabilizing device for the increase of the surge margin of a compressor |
US5403149A (en) * | 1992-10-17 | 1995-04-04 | Asea Brown Boveri Ltd. | Stabailization device for extending the characteristic map of a compressor |
WO2004104422A1 (en) * | 2003-05-15 | 2004-12-02 | Robert Bosch Gmbh | Device for the compression of combustion air |
US10018205B2 (en) | 2012-11-28 | 2018-07-10 | Napier Turbochargers Limited | Impeller shaft |
US9574562B2 (en) | 2013-08-07 | 2017-02-21 | General Electric Company | System and apparatus for pumping a multiphase fluid |
CN110307164A (en) * | 2019-07-25 | 2019-10-08 | 中国船舶重工集团公司第七0四研究所 | Condensate pump flow passage components structure with inducer |
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