GB1349218A – Rotors for screw compressors
– Google Patents
GB1349218A – Rotors for screw compressors
– Google Patents
Rotors for screw compressors
Info
Publication number
GB1349218A
GB1349218A
GB3348572A
GB3348572A
GB1349218A
GB 1349218 A
GB1349218 A
GB 1349218A
GB 3348572 A
GB3348572 A
GB 3348572A
GB 3348572 A
GB3348572 A
GB 3348572A
GB 1349218 A
GB1349218 A
GB 1349218A
Authority
GB
United Kingdom
Prior art keywords
portions
rotors
constant pitches
screw compressors
compressor
Prior art date
1971-08-02
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
GB3348572A
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.)
Davey Compressor Co
Original Assignee
Davey Compressor Co
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.)
1971-08-02
Filing date
1972-07-18
Publication date
1974-04-03
1972-07-18
Application filed by Davey Compressor Co
filed
Critical
Davey Compressor Co
1974-04-03
Publication of GB1349218A
publication
Critical
patent/GB1349218A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F04C18/082—Details specially related to intermeshing engagement type pumps
F04C18/084—Toothed wheels
Abstract
1349218 Rotary positive-displacement compressors DAVEY COMPRESSOR CO 18 July 1972 [2 Aug 1971] 33485/72 Heading F1F A screw compressor 10 comprises male and female rotors 22, 24 each having two portions A, B and C, D respectively, wherein the portions A and C have constant pitches which are greater than the constant pitches of portions B and D. Each rotor can be constructed with the larger pitch portion 56, Fig. 5, integral with the shaft 52, the smaller pitch portion 58 having a bore which receives shaft portion 62. Portions 56, 58 are connected by screws 64, perfect mating of the respective helical land and groove portions being effected by locating dowel pins 72.
GB3348572A
1971-08-02
1972-07-18
Rotors for screw compressors
Expired
GB1349218A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US16802371A
1971-08-02
1971-08-02
Publications (1)
Publication Number
Publication Date
GB1349218A
true
GB1349218A
(en)
1974-04-03
Family
ID=22609768
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3348572A
Expired
GB1349218A
(en)
1971-08-02
1972-07-18
Rotors for screw compressors
Country Status (5)
Country
Link
JP
(2)
JPS4825206A
(en)
DE
(1)
DE2234405A1
(en)
FR
(1)
FR2149781A5
(en)
GB
(1)
GB1349218A
(en)
SE
(1)
SE385232B
(en)
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2299832A
(en)
*
1995-04-13
1996-10-16
Ingersoll Dresser Pump Co
Screw pump
GB2440661A
(en)
*
2006-08-01
2008-02-06
Grasso Gmbh
High Pressure Screw Compressors
WO2017075555A1
(en)
*
2015-10-30
2017-05-04
Gardner Denver, Inc.
Complex screw rotors
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4714418A
(en)
*
1984-04-11
1987-12-22
Hitachi, Ltd.
Screw type vacuum pump
JP2619468B2
(en)
*
1988-04-06
1997-06-11
株式会社日立製作所
Oil-free screw fluid machine
SE8803595L
(en)
*
1988-10-11
1990-04-12
Svenska Rotor Maskiner Ab
MACHINE CONTAINS A GAS MEDIUM
JP2004346864A
(en)
*
2003-05-23
2004-12-09
Taiko Kikai Industries Co Ltd
Expansion engine for recovering waste heat
JP5542382B2
(en)
*
2009-07-27
2014-07-09
株式会社日立産機システム
Screw compressor
JP2021060003A
(en)
*
2019-10-07
2021-04-15
株式会社日立産機システム
Screw compressor
JP2022147299A
(en)
*
2021-03-23
2022-10-06
株式会社日立産機システム
multistage screw compressor
1972
1972-07-13
DE
DE19722234405
patent/DE2234405A1/en
active
Pending
1972-07-18
GB
GB3348572A
patent/GB1349218A/en
not_active
Expired
1972-07-24
FR
FR7226582A
patent/FR2149781A5/fr
not_active
Expired
1972-08-01
SE
SE1000372D
patent/SE385232B/en
unknown
1972-08-02
JP
JP7699372A
patent/JPS4825206A/ja
active
Pending
1977
1977-04-18
JP
JP4885177U
patent/JPS52142217U/ja
active
Pending
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2299832A
(en)
*
1995-04-13
1996-10-16
Ingersoll Dresser Pump Co
Screw pump
GB2440661A
(en)
*
2006-08-01
2008-02-06
Grasso Gmbh
High Pressure Screw Compressors
GB2440661B
(en)
*
2006-08-01
2011-05-18
Grasso Gmbh Refrigeration Technology
High pressure screw compressors
WO2017075555A1
(en)
*
2015-10-30
2017-05-04
Gardner Denver, Inc.
Complex screw rotors
US10975867B2
(en)
2015-10-30
2021-04-13
Gardner Denver, Inc.
Complex screw rotors
US11644034B2
(en)
2015-10-30
2023-05-09
Gardner Denver, Inc.
Complex screw rotors
Also Published As
Publication number
Publication date
DE2234405A1
(en)
1973-02-22
JPS52142217U
(en)
1977-10-28
SE385232B
(en)
1976-06-14
FR2149781A5
(en)
1973-03-30
JPS4825206A
(en)
1973-04-02
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(en)
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Legal Events
Date
Code
Title
Description
1974-08-14
PS
Patent sealed
1983-02-23
PCNP
Patent ceased through non-payment of renewal fee
