GB952870A - Improvements in or relating to variable-pitch control devices for bladed impellers and diffusers of blowers, compressors or like machines - Google Patents
Improvements in or relating to variable-pitch control devices for bladed impellers and diffusers of blowers, compressors or like machinesInfo
- Publication number
- GB952870A GB952870A GB1148160A GB1148160A GB952870A GB 952870 A GB952870 A GB 952870A GB 1148160 A GB1148160 A GB 1148160A GB 1148160 A GB1148160 A GB 1148160A GB 952870 A GB952870 A GB 952870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- impeller
- gear
- bevel
- motor
- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting 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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/322—Blade mountings
- F04D29/323—Blade mountings adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
952,870. Axial-flow blowers and compressors. L. R. CORVISIER. March 31, 1960, No. 11481/60. Heading F1C. In an axial-flow blower, compressor or the like, impeller blades 4 and diffuser blades 6 are adjusted in pitch, simultaneously or separately, by means of an electric motor 59. The motor 59 drives a shaft 45 through either of two sets of double-reduction worm gearing 60 or 601, the latter providing a more rapid adjustment for emergency use; the set of gearing to be used is coupled to the shaft 45 by a dog clutch 50 actuated by a servomotor 54. Shaft 45 is connected through bevel gearing 421 and splines to a vertical shaft which can be moved axially by means of a servomotor 104, 105 to engage a dog clutch connecting it to a shaft 261 whereby the pitch-adjusting pinions 71 of the diffuser blades 6 are rotated by a common gear ring 69. To adjust the impeller blades 4, a bevel gear 24 concentric with the impeller shaft is brought up to the speed of the impeller shaft by means of a motor 41 connected through bevel gears 39, 39a, to the planet carrier 44a of a differential gear 44, a sun gear 47 of which is connected through bevel gears 42, 37, shaft 26 and bevel gear 25 to the bevel gear 24. Bevel gear 24 is then coupled by a servomotor-actuated dog clutch 88 to a gear wheel 19 carried by the impeller. Motor 59 is then started in the required direction to drive shaft 45 which rotates the other sun gear 48 of the differential gear 44 to vary the speed of gear wheel 19 to a value above or below that of the impeller shaft, whereby the gear wheel 19 is caused to rotate relative to the impeller, thereby causing the pitch-adjusting pinion 14 of each impeller blade 4 to rotate relative to the impeller. Shafts 26 and 261 may be arranged to be moved axially to bring bevel gears 24, 25 and 241, 251 into or out of mesh, the associated dog clutches then being omitted. The electric motors may be replaced by fluid-actuated motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1148160A GB952870A (en) | 1960-03-31 | 1960-03-31 | Improvements in or relating to variable-pitch control devices for bladed impellers and diffusers of blowers, compressors or like machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1148160A GB952870A (en) | 1960-03-31 | 1960-03-31 | Improvements in or relating to variable-pitch control devices for bladed impellers and diffusers of blowers, compressors or like machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB952870A true GB952870A (en) | 1964-03-18 |
Family
ID=9987057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1148160A Expired GB952870A (en) | 1960-03-31 | 1960-03-31 | Improvements in or relating to variable-pitch control devices for bladed impellers and diffusers of blowers, compressors or like machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB952870A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2362070A1 (en) * | 2010-02-19 | 2011-08-31 | Siemens Aktiengesellschaft | Drive device for pivoting adjustable vanes of a turbomachine |
| EP2362071A1 (en) * | 2010-02-19 | 2011-08-31 | Siemens Aktiengesellschaft | Drive device for pivoting adjustable vanes of a turbomachine |
| CN111207094A (en) * | 2020-02-24 | 2020-05-29 | 曹天远 | Axial flow fan of wide region regulation blade angle |
-
1960
- 1960-03-31 GB GB1148160A patent/GB952870A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2362070A1 (en) * | 2010-02-19 | 2011-08-31 | Siemens Aktiengesellschaft | Drive device for pivoting adjustable vanes of a turbomachine |
| EP2362071A1 (en) * | 2010-02-19 | 2011-08-31 | Siemens Aktiengesellschaft | Drive device for pivoting adjustable vanes of a turbomachine |
| CN102762818A (en) * | 2010-02-19 | 2012-10-31 | 西门子公司 | Drive device for pivoting adjustable blades of a turbomachine |
| CN111207094A (en) * | 2020-02-24 | 2020-05-29 | 曹天远 | Axial flow fan of wide region regulation blade angle |
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