DE3278039D1 - Screw rotor machine - Google Patents

Screw rotor machine

Info

Publication number
DE3278039D1
DE3278039D1 DE8282109850T DE3278039T DE3278039D1 DE 3278039 D1 DE3278039 D1 DE 3278039D1 DE 8282109850 T DE8282109850 T DE 8282109850T DE 3278039 T DE3278039 T DE 3278039T DE 3278039 D1 DE3278039 D1 DE 3278039D1
Authority
DE
Germany
Prior art keywords
rotor
female
tooth form
screw rotor
rotor machine
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
DE8282109850T
Other languages
German (de)
Inventor
Katsuhiko Kasuya
Hidetomo Mori
Mitsuru Fujiwara
Tetsuzo Matsunaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3278039D1 publication Critical patent/DE3278039D1/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary-Type Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

The pair of screw rotors comprise a female rotor (1) and a male rotor (2) rotating about parallel axes, the female rotor having a rotor tooth form produced in normal temp. conditions. The male rotor is formed by generating loci of a flank of each of two surfaces of the female rotor, the surfaces being a surface of advance and a surface of retrocession. The male rotor tooth form is produced from the female tooth form when in an elevated temp. situation, e.g. during normal rotor operation. The surface of advance has two flanks (7,8) while the surface of retrocession has three (9,10,11).
DE8282109850T 1982-10-25 1982-10-25 Screw rotor machine Expired DE3278039D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82109850A EP0106912B1 (en) 1982-10-25 1982-10-25 Screw rotor machine

Publications (1)

Publication Number Publication Date
DE3278039D1 true DE3278039D1 (en) 1988-03-03

Family

ID=8189308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282109850T Expired DE3278039D1 (en) 1982-10-25 1982-10-25 Screw rotor machine

Country Status (2)

Country Link
EP (1) EP0106912B1 (en)
DE (1) DE3278039D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8413619D0 (en) * 1984-05-29 1984-07-04 Compair Ind Ltd Screw rotor machines
JPS61201894A (en) * 1985-03-04 1986-09-06 Hitachi Ltd Screw rotor tooth form

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB968195A (en) * 1960-08-30 1964-08-26 Howden James & Co Ltd Improvements in or relating to rotary engines and compressors
DE2361068A1 (en) * 1973-12-07 1975-06-19 Demag Ag ROTARY LISTON COMPRESSORS, IN PARTICULAR DRY OR FLOODED SCREW COMPRESSORS
US4140445A (en) * 1974-03-06 1979-02-20 Svenka Rotor Haskiner Aktiebolag Screw-rotor machine with straight flank sections
JPS6042359B2 (en) * 1979-09-14 1985-09-21 株式会社日立製作所 screw rotor
JPS5793602A (en) * 1980-12-03 1982-06-10 Hitachi Ltd Screw rotor
EP0104265B1 (en) * 1982-09-24 1987-12-16 Hitachi, Ltd. Method for producing a pair of screw rotors of a screw compressor

Also Published As

Publication number Publication date
EP0106912A1 (en) 1984-05-02
EP0106912B1 (en) 1988-01-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition