GB1388376A - Meshing screw pumps - Google Patents

Meshing screw pumps

Info

Publication number
GB1388376A
GB1388376A GB3304973A GB3304973A GB1388376A GB 1388376 A GB1388376 A GB 1388376A GB 3304973 A GB3304973 A GB 3304973A GB 3304973 A GB3304973 A GB 3304973A GB 1388376 A GB1388376 A GB 1388376A
Authority
GB
United Kingdom
Prior art keywords
tooth
main
involute
rotors
july
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
GB3304973A
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of GB1388376A publication Critical patent/GB1388376A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F15/00—Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00 - B23F13/00
    • B23F15/08—Making intermeshing rotors, e.g. of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/082—Details specially related to intermeshing engagement type machines or engines
    • F01C1/084—Toothed wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Rotary-Type Compressors (AREA)
  • Hydraulic Motors (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

1388376 Rotary positive displacement machines LINDE AG 11 July 1973 [14 July 1972] 33049/73 Heading F1F In a meshing screw pump comprising a housing with inlet and exhaust ports and main and secondary rotors M 1 , M 2 with helical tooth rows, the tooth profiles of the rotors are partly of involute form, the tooth flanks of the main rotor being essentially convex in cross-section and those of the secondary rotor concave. As shown, the involute sections 1-2 and 9-10 are in the root and tip zones respectively of the main and secondary rotors, the tooth profile being radiused at the root and tip respectively adjacent the involute parts. The involute toothing may be formed with profile displacement. Opposite flanks of a tooth may have different angles of engagement. The teeth may be formed by hobbing or by the divider head method using a thread-cutting rotating tool or side mills and end mills. The number of teeth on the main and secondary rotors may be in the ratio 4 to 6, as shown, or 4 to 7, Fig.3 (not shown).
GB3304973A 1972-07-14 1973-07-11 Meshing screw pumps Expired GB1388376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722234777 DE2234777C3 (en) 1972-07-14 1972-07-14 compressor

Publications (1)

Publication Number Publication Date
GB1388376A true GB1388376A (en) 1975-03-26

Family

ID=5850696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3304973A Expired GB1388376A (en) 1972-07-14 1973-07-11 Meshing screw pumps

Country Status (3)

Country Link
JP (1) JPS5712841B2 (en)
DE (1) DE2234777C3 (en)
GB (1) GB1388376A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365284C (en) * 2004-03-30 2008-01-30 肖文伟 Rotor tooth-profile for screw pump
ITBO20090442A1 (en) * 2009-07-09 2011-01-10 Bora S R L ROTORS FOR A ROTARY SCREW MACHINE
CN110056506A (en) * 2019-04-25 2019-07-26 余德林 A kind of dry type oil free screw molded line and the air compressor using the screw rod

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1027910A (en) * 1973-06-27 1978-03-14 Robert A. Ingalls Screw rotor machine rotors and method of making
JPS5525578A (en) * 1978-08-14 1980-02-23 Mitsubishi Heavy Ind Ltd Screw rotor
IN157732B (en) * 1981-02-06 1986-05-24 Svenska Rotor Maskiner Ab
DE8434596U1 (en) * 1983-12-14 1985-02-21 Boge Kompressoren Otto Boge Gmbh & Co Kg, 4800 Bielefeld TURNING PISTON COMPRESSORS
US4508496A (en) * 1984-01-16 1985-04-02 Ingersoll-Rand Co. Rotary, positive-displacement machine, of the helical-rotor type, and rotors therefor
DE19502323C2 (en) * 1995-01-26 1997-09-18 Guenter Kirsten Process for the manufacture of rotors of screw compressors
DE102014000911B4 (en) * 2014-01-28 2016-01-28 Klaus Union Gmbh & Co. Kg Feed screw as a runner or counter runner of a screw pair of a screw pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365284C (en) * 2004-03-30 2008-01-30 肖文伟 Rotor tooth-profile for screw pump
ITBO20090442A1 (en) * 2009-07-09 2011-01-10 Bora S R L ROTORS FOR A ROTARY SCREW MACHINE
WO2011004342A2 (en) 2009-07-09 2011-01-13 Bora S.R.L. Rotors for a rotary screw machine
WO2011004342A3 (en) * 2009-07-09 2011-05-12 Bora S.R.L. Rotors for a rotary screw machine
CN110056506A (en) * 2019-04-25 2019-07-26 余德林 A kind of dry type oil free screw molded line and the air compressor using the screw rod
CN110056506B (en) * 2019-04-25 2024-03-22 余德林 Dry-type oilless screw molded line and air compressor adopting same

Also Published As

Publication number Publication date
DE2234777A1 (en) 1974-02-14
DE2234777C3 (en) 1980-10-30
JPS5712841B2 (en) 1982-03-13
JPS4967211A (en) 1974-06-29
DE2234777B2 (en) 1980-03-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee