GB1046261A - Improvements in or relating to screw air compressors - Google Patents

Improvements in or relating to screw air compressors

Info

Publication number
GB1046261A
GB1046261A GB7372/63A GB737263A GB1046261A GB 1046261 A GB1046261 A GB 1046261A GB 7372/63 A GB7372/63 A GB 7372/63A GB 737263 A GB737263 A GB 737263A GB 1046261 A GB1046261 A GB 1046261A
Authority
GB
United Kingdom
Prior art keywords
stage
rotors
female
rotor
male
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
Application number
GB7372/63A
Inventor
Hans Borje Vagenius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
James Howden and Co Ltd
Original Assignee
James Howden and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by James Howden and Co Ltd filed Critical James Howden and Co Ltd
Priority to GB7372/63A priority Critical patent/GB1046261A/en
Priority to US346275A priority patent/US3279682A/en
Priority to DE19641428125 priority patent/DE1428125A1/en
Priority to CH222164A priority patent/CH431795A/en
Publication of GB1046261A publication Critical patent/GB1046261A/en
Expired legal-status Critical Current

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
    • 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
    • F04C18/12—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 of other than internal-axis type
    • F04C18/14—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 of other than internal-axis type with toothed rotary pistons
    • F04C18/16—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 of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Abstract

1,046,261. Rotary compressors. JAMES HOWDEN & CO. Ltd. Feb. 17, 1964 [Feb. 23, 1963], No. 7372/63. Heading F1F. In a two-stage, intermeshing screw air compressor, comprising in each stage a male and female rotor, one rotor from each stage is mounted on a common shaft supported on only two bearings located at each end of the first stage. As shown in Figs. 1 and 2, an oilinjected air compressor 10 having first and second stages 15, 16 includes parallel shafts 11, 12 mounting respectively first and second stage male rotors 13, 14, and first and second stage female rotors 19, 20, with the helixes of the second stage rotors of opposite hand to those of the first stage rotors so that the outlet 37 from the first stage is adjacent the outlet 39 of the second stage to enable axial thrust loads on the two shafts to be substantially cancelled out and so permit the use of only two bearings 30, 31 on each shaft and the shorter second stage rotors 14, 20 to overhang with respect to the bearings 31. In the embodiment shown, the diameters of the rotors of the second stage are identical with those of the first stage. In another embodiment, in which the diameters of the second stage rotors are less than those of the first stage rotors, only one shaft is common to a rotor in each stage, the female rotors being mounted on separate shafts bearingly supported at either end. The male and female rotors of the second stage may be transposed so that instead of carrying two male rotors or two female rotors, the common shaft carries a male rotor and a female rotor. The female rotor of the second stage instead of being keyed to its shaft may rotate freely on bearings on a stationary shaft.
GB7372/63A 1963-02-23 1963-02-23 Improvements in or relating to screw air compressors Expired GB1046261A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB7372/63A GB1046261A (en) 1963-02-23 1963-02-23 Improvements in or relating to screw air compressors
US346275A US3279682A (en) 1963-02-23 1964-02-20 Screw air compressors
DE19641428125 DE1428125A1 (en) 1963-02-23 1964-02-20 Screw air compressor
CH222164A CH431795A (en) 1963-02-23 1964-02-24 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7372/63A GB1046261A (en) 1963-02-23 1963-02-23 Improvements in or relating to screw air compressors

Publications (1)

Publication Number Publication Date
GB1046261A true GB1046261A (en) 1966-10-19

Family

ID=9831879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7372/63A Expired GB1046261A (en) 1963-02-23 1963-02-23 Improvements in or relating to screw air compressors

Country Status (4)

Country Link
US (1) US3279682A (en)
CH (1) CH431795A (en)
DE (1) DE1428125A1 (en)
GB (1) GB1046261A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1220054A (en) * 1967-02-06 1971-01-20 Svenska Rotor Maskiner Ab Two-stage compressor of the meshing screw rotor type
GB1248031A (en) * 1967-09-21 1971-09-29 Edwards High Vacuum Int Ltd Two-stage rotary vacuum pumps
US3481532A (en) * 1967-12-20 1969-12-02 Ingersoll Rand Co Compressor
US4068984A (en) * 1974-12-03 1978-01-17 H & H Licensing Corporation Multi-stage screw-compressor with different tooth profiles
US4089625A (en) * 1974-12-21 1978-05-16 Comprotek, S. A. Rotary gas machine
US4792294A (en) * 1986-04-11 1988-12-20 Mowli John C Two-stage screw auger pumping apparatus
US4944657A (en) * 1989-03-01 1990-07-31 Mowli John C Two-stage pumping apparatus with low shear first stage
US5267837A (en) * 1992-09-23 1993-12-07 Mowli John C Two-stage pumping apparatus with non-meshing first stage augers
DE19519247C2 (en) * 1995-05-25 2000-08-31 Guenter Kirsten Screw compressor
CN103511249A (en) * 2013-09-27 2014-01-15 天津市瑞德螺杆泵制造技术有限公司 Immersed side-wall-mounted single-suction two-screw pump
CN205937114U (en) * 2016-08-02 2017-02-08 江森自控空调冷冻设备(无锡)有限公司 Male rotor symmetrical arrangement's helical -lobe compressor
CN113417851A (en) * 2021-08-12 2021-09-21 珠海格力节能环保制冷技术研究中心有限公司 Screw compressor and air conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009137A (en) * 1932-04-12 1935-07-23 Webster Electric Co Inc Multistage pump and pumping system
NL44178C (en) * 1934-10-16
US2533320A (en) * 1949-01-04 1950-12-12 Du Pont Rotary gear-type metering pump
US2847157A (en) * 1953-10-27 1958-08-12 Svenska Rotor Maskiner Ab Rotary device
AT211945B (en) * 1958-02-27 1960-11-10 Svenska Rotor Maskiner Ab Helical gear machine
US3084851A (en) * 1960-02-29 1963-04-09 Svenska Rotor Maskiner Ab Rotary machine

Also Published As

Publication number Publication date
US3279682A (en) 1966-10-18
DE1428125A1 (en) 1968-11-28
CH431795A (en) 1967-03-15

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