GB891017A - Improvements in roots blowers - Google Patents
Improvements in roots blowersInfo
- Publication number
- GB891017A GB891017A GB3273559A GB3273559A GB891017A GB 891017 A GB891017 A GB 891017A GB 3273559 A GB3273559 A GB 3273559A GB 3273559 A GB3273559 A GB 3273559A GB 891017 A GB891017 A GB 891017A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coated
- flanks
- rotor
- rotors
- fibres
- 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/90—Improving properties of machine parts
- F04C2230/91—Coating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
891,017. Roots blowers. WADE ENGINEERING Ltd. Dec. 28, 1960 [Sept. 25, 1959], No. 32735/59. Class 110 (2). In a Roots blower, the seal 23 between the rotors is formed by successive pairs of flanks 12, one flank of each pair being coated with fibres 22 perpendicular to the surface, and the other flank of each pair being uncoated. In the drawing, all the coated flanks are on rotor 2, though as an alternative, half the flanks on each rotor may be coated, so that only metal-tocoating contact occurs, that is, all the trailing flanks, or all the leading flanks of both rotors may be coated. In the embodiment, the tips 14 of one rotor do not touch the valleys 16 of the other rotor, and so coating is not needed there. The cylindrical surfaces 24, and end faces of the housing 18 may also be coated. The fibres which form the coating are preferably applied by electrostatic deposition. Specification 687,442 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3273559A GB891017A (en) | 1959-09-25 | 1959-09-25 | Improvements in roots blowers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3273559A GB891017A (en) | 1959-09-25 | 1959-09-25 | Improvements in roots blowers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB891017A true GB891017A (en) | 1962-03-07 |
Family
ID=10343242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3273559A Expired GB891017A (en) | 1959-09-25 | 1959-09-25 | Improvements in roots blowers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB891017A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3640650A (en) * | 1968-07-18 | 1972-02-08 | Maag Zahnraeder & Maschinen Ag | Gear tooth system for gear pumps |
GB2125485A (en) * | 1982-08-10 | 1984-03-07 | Paul William Nachtrieb | Rotary positive-displacement fluid-machines |
EP1835127A1 (en) | 2006-03-14 | 2007-09-19 | Scroll Giken LLC | Positive-displacement fluid machine |
WO2013167605A3 (en) * | 2012-05-08 | 2014-01-03 | Ralf Steffens | Spindle compressor |
-
1959
- 1959-09-25 GB GB3273559A patent/GB891017A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3640650A (en) * | 1968-07-18 | 1972-02-08 | Maag Zahnraeder & Maschinen Ag | Gear tooth system for gear pumps |
GB2125485A (en) * | 1982-08-10 | 1984-03-07 | Paul William Nachtrieb | Rotary positive-displacement fluid-machines |
EP1835127A1 (en) | 2006-03-14 | 2007-09-19 | Scroll Giken LLC | Positive-displacement fluid machine |
WO2013167605A3 (en) * | 2012-05-08 | 2014-01-03 | Ralf Steffens | Spindle compressor |
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