GB1255971A - Improvements in or relating to intermeshing screw compressors - Google Patents
Improvements in or relating to intermeshing screw compressorsInfo
- Publication number
- GB1255971A GB1255971A GB008/69A GB10869A GB1255971A GB 1255971 A GB1255971 A GB 1255971A GB 008/69 A GB008/69 A GB 008/69A GB 10869 A GB10869 A GB 10869A GB 1255971 A GB1255971 A GB 1255971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- relating
- rotors
- jan
- cylinder
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary-Type Compressors (AREA)
- Rotary Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
1,255,971. Rotary positive-displacement machines. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Jan.1, 1969 [Jan.3, 1968], No.108/69. Heading F1F. An externally-meshing-screw-type compressor has an axially-movable member 7 abutting a pair of rotors to vary the output, a piston 10 being provided to balance the axial thrust on the member 7 due to the pressure differential between the ends of the rotors. Pressure at an inlet opening 1 is applied to the farthest side of the piston through a hollow rod 8 and bores 15. A cylinder 11 for the piston is detachable and has a cover 12, carrying means 13 to operate a screw 14, which displaces the piston and the member 7. When the cover 12 is removed the piston and said member can be withdrawn through the cylinder. Each rotor has bearings 5, 6.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1628274 | 1968-01-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1255971A true GB1255971A (en) | 1971-12-08 |
Family
ID=5683150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB008/69A Expired GB1255971A (en) | 1968-01-03 | 1969-01-01 | Improvements in or relating to intermeshing screw compressors |
Country Status (5)
Country | Link |
---|---|
US (1) | US3549280A (en) |
JP (1) | JPS4925734B1 (en) |
FR (1) | FR1600014A (en) |
GB (1) | GB1255971A (en) |
SE (1) | SE351267B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3869227A (en) * | 1974-03-08 | 1975-03-04 | Vilter Manufacturing Corp | Variable capacity rotary screw compressor having variable high pressure suction fluid inlets |
CH657506A5 (en) * | 1981-12-10 | 1986-09-15 | Hollymatic Ag | PORTIONING MACHINE FOR FILLING CAVES WITH DEFORMABLE MATERIAL AND USE THEREOF. |
DE3403690A1 (en) * | 1984-02-03 | 1985-08-14 | Hans-Joachim 3036 Bomlitz Cohrs | Screw compressor heat pump controlled by a slide valve and driven by a wind energy converter. |
US4678406A (en) * | 1986-04-25 | 1987-07-07 | Frick Company | Variable volume ratio screw compressor with step control |
EP3165770A1 (en) | 2009-03-26 | 2017-05-10 | Johnson Controls Technology Company | Compressor with a bypass port |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2331127A (en) * | 1943-10-05 | Fluid pressure apparatus | ||
US1922639A (en) * | 1931-03-13 | 1933-08-15 | Worthington Pump & Mach Corp | Unloading mechanism for rotary compressors |
US1948907A (en) * | 1931-04-18 | 1934-02-27 | Egli Eugen | Compressor |
US2079375A (en) * | 1936-06-09 | 1937-05-04 | Orla H Mccollum | Pump |
US2477003A (en) * | 1942-07-25 | 1949-07-26 | Joy Mfg Co | Rotary helical gear air pump with discharge pressure regulator |
BE576047A (en) * | 1958-02-27 | 1959-08-24 | Svenska Rotor Maskiner Ab | Rotary machine for compression or expansion of a fluid, and its applications in particular to a refrigerator |
NO117317B (en) * | 1964-03-20 | 1969-07-28 | Svenska Rotor Maskiner Ab | |
GB1171291A (en) * | 1965-10-12 | 1969-11-19 | Svenska Rotor Maskiner Ab | Screw Rotor Machines |
-
1968
- 1968-12-26 JP JP43095056A patent/JPS4925734B1/ja active Pending
- 1968-12-27 FR FR1600014D patent/FR1600014A/fr not_active Expired
-
1969
- 1969-01-01 GB GB008/69A patent/GB1255971A/en not_active Expired
- 1969-01-02 SE SE00008/69A patent/SE351267B/xx unknown
- 1969-01-02 US US788511A patent/US3549280A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3549280A (en) | 1970-12-22 |
FR1600014A (en) | 1970-07-20 |
JPS4925734B1 (en) | 1974-07-03 |
SE351267B (en) | 1972-11-20 |
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