GB854624A - Rotary pumps or compressors - Google Patents
Rotary pumps or compressorsInfo
- Publication number
- GB854624A GB854624A GB29256/57A GB2925657A GB854624A GB 854624 A GB854624 A GB 854624A GB 29256/57 A GB29256/57 A GB 29256/57A GB 2925657 A GB2925657 A GB 2925657A GB 854624 A GB854624 A GB 854624A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- guide
- blade ring
- pump
- parts
- 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
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps 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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
854,624. Centrifugal pumps and compressors. SULZER FRERES S.A. Sept. 17, 1957 [Oct. 12, 1956], No. 29256/57. Class 110(1). In a rotary pump or compressor in which there is a guide-blade ring associated with each impeller, a chamber is provided between a guide-blade ring and a part adjoining it in the axial direction, the chamber communicating with a point at lower pressure than that of the medium flowing through the guide-blade ring, and the parts forming the chamber are sealed against each other in a manner permitting axial play. The reduced pressure in the chamber reduces the forces imposed on the pump or compressor housing by the pressure differentials acting on stator parts. In the double-flow pump shown, a chamber 12 is formed between a guide-blade ring 10 and an axially adjoining part, and chamber 15 and 16 are formed between a guide-blade ring 9 and axially adjacent parts on either side of it. The chambers are vented to atmosphere through passages 17, 18 and 19. Packing is provided between the parts forming each chamber, in a manner permitting axial play so that axial forces acting on one part are not transmitted to the other part. A similar construction is provided on the right-hand side of the pump, but an alternative arrangement, whereby passage 19<SP>1</SP> leads to the inlet 2 instead of to atmosphere is shown. In a modification, chambers 15 and 16 are omitted and chamber 12 is vented to the outlet side of the first stage. The pump may be of single-flow type.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH854624X | 1956-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB854624A true GB854624A (en) | 1960-11-23 |
Family
ID=4542568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29256/57A Expired GB854624A (en) | 1956-10-12 | 1957-09-17 | Rotary pumps or compressors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB854624A (en) |
-
1957
- 1957-09-17 GB GB29256/57A patent/GB854624A/en not_active Expired
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