GB1433021A - Meshing screw rotary positive-displacement machine - Google Patents

Meshing screw rotary positive-displacement machine

Info

Publication number
GB1433021A
GB1433021A GB2072573A GB2072573A GB1433021A GB 1433021 A GB1433021 A GB 1433021A GB 2072573 A GB2072573 A GB 2072573A GB 2072573 A GB2072573 A GB 2072573A GB 1433021 A GB1433021 A GB 1433021A
Authority
GB
United Kingdom
Prior art keywords
thread
crest
generated
flank
trailing
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
GB2072573A
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.)
Hokuetsu Industries Co Ltd
Original Assignee
Hokuetsu Industries 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
Priority claimed from JP47042635A external-priority patent/JPS5143604B2/ja
Priority claimed from JP7917272A external-priority patent/JPS5617522B2/ja
Priority claimed from JP8185172A external-priority patent/JPS5618761B2/ja
Application filed by Hokuetsu Industries Co Ltd filed Critical Hokuetsu Industries Co Ltd
Publication of GB1433021A publication Critical patent/GB1433021A/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
    • 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
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines 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
    • F01C1/16—Rotary-piston machines or engines 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1433021 Rotary positive-displacement-fluidmachines HOKUETSU KOGYO CO Ltd 1 May 1973 [1 May 1972 9 Aug 1972 and 17 Aug 1972] 20725/73 Heading F1F In a meshing-screw machine such as a compressor or expander, having male and female rotors 12, 14 each male-rotor tooth, or "thread", 13 has a crest of substantial breadth a and uniform radius R from the rotor axis O, the trailing flank of the thread being generated by the sharp leading edge 16 of the crest of a female-rotor thread 15, and the leading flank of each thread 15 being generated by the trailing edge 17 of the crest of a thread 13. The leading and trailing flanks 20, 21 of the threads 13, 15 are shaped to produce a minimal space 24 between meshing threads. The rootportion 23 of the flank 20 (of each thread 13) is generated by the trailing edge 22 of the crest of a thread 15. Sealing strips may be incorporated in the crests of the teeth 13 either centrally or at the edges 16, 17, Figs. 10 to 12 (not shown).
GB2072573A 1972-05-01 1973-05-01 Meshing screw rotary positive-displacement machine Expired GB1433021A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP47042635A JPS5143604B2 (en) 1972-05-01 1972-05-01
JP7917272A JPS5617522B2 (en) 1972-08-09 1972-08-09
JP8185172A JPS5618761B2 (en) 1972-08-17 1972-08-17

Publications (1)

Publication Number Publication Date
GB1433021A true GB1433021A (en) 1976-04-22

Family

ID=27291283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2072573A Expired GB1433021A (en) 1972-05-01 1973-05-01 Meshing screw rotary positive-displacement machine

Country Status (7)

Country Link
AU (1) AU449879B2 (en)
CA (1) CA1012115A (en)
DE (1) DE2321833A1 (en)
FR (1) FR2183481A5 (en)
GB (1) GB1433021A (en)
IT (1) IT1050368B (en)
MY (1) MY7700086A (en)

Also Published As

Publication number Publication date
IT1050368B (en) 1981-03-10
DE2321833A1 (en) 1973-11-08
MY7700086A (en) 1977-12-31
FR2183481A5 (en) 1973-12-14
AU449879B2 (en) 1974-06-27
CA1012115A (en) 1977-06-14
AU5499273A (en) 1974-06-27

Similar Documents

Publication Publication Date Title
US4412796A (en) Helical screw rotor profiles
GB1197432A (en) Improvements in and relating to Rotary Positive Displacement Machines of the Intermeshing Screw Type and Rotors therefor
GB1242192A (en) Improvements in or relating to rotary positive-displacement machines
GB1503488A (en) Meshing screw rotor fluid maching
IE820254L (en) Meshing screw rotary machine
ES342045A1 (en) Screw rotor machines and profiles
GB1085821A (en) Helically threaded rotors for screw type pumps, compressors and similar devices
SE8006399L (en) BOLT CUTTER
GB1407058A (en) Helical rotor mechanisms
JPS6445989A (en) Screw fluid machine
GB1323588A (en) Intermeshing screw rotor machines such as compressors and screw rotors therefor
GB1513081A (en) Rotary positive-displacement unit
GB1483833A (en) Shearing using a helical shear blade
GB1388376A (en) Meshing screw pumps
GB1404782A (en) Seal member for a rotary piston engine
GB1142156A (en) Improvements in or relating to rotary fluid pressure pumps and motors of the internally meshing n and n+1 tooth type
GB1433021A (en) Meshing screw rotary positive-displacement machine
GB1388537A (en) Rotary positive-displacement machines for compression or expansion of a fluid
GB1349218A (en) Rotors for screw compressors
GB1378539A (en) Meshing screw-type compressors and motors
GB1443505A (en) Rotors for a screw rotor fluid machine
GB1438225A (en) Meshing screw rotor fluid-machine rotor
GB1345057A (en)
GB753772A (en) Improvements in rotary compressors
GB527339A (en) Improvements in screw pumps or screw motors

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930430