GB968195A - Improvements in or relating to rotary engines and compressors - Google Patents

Improvements in or relating to rotary engines and compressors

Info

Publication number
GB968195A
GB968195A GB29920/60A GB2992060A GB968195A GB 968195 A GB968195 A GB 968195A GB 29920/60 A GB29920/60 A GB 29920/60A GB 2992060 A GB2992060 A GB 2992060A GB 968195 A GB968195 A GB 968195A
Authority
GB
United Kingdom
Prior art keywords
rotors
grooves
lobes
rotor
inlet
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
GB29920/60A
Inventor
Ian Alistair Maccoll
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 GB29920/60A priority Critical patent/GB968195A/en
Priority to US134447A priority patent/US3179330A/en
Priority to DE19611403534 priority patent/DE1403534A1/en
Publication of GB968195A publication Critical patent/GB968195A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2730/00—Internal-combustion engines with pistons rotating or oscillating with relation to the housing
    • F02B2730/05—Internal-combustion engines with pistons rotating or oscillating with relation to the housing with pistons intermeshing as gear wheels; with helicoidal rotors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Supercharger (AREA)

Abstract

968,195. Rotary pumps and motors. JAMES HOWDEN & CO. Ltd. Aug. 21, 1961 [Aug. 30, 1960], No. 29920/60. Heading F1F. In a rotary compressor or engine of the type comprising two or more rotors formed with intermeshing helical grooves and threads, the root and tip diameters of either or both rotors are gradually reduced from end to end of the rotor to provide tapered clearances, which compensates for the temperature gradient in use-so that, in operation, optimum working clearances for maximum efficiency are provided at all points along the length of the rotors. In Fig. 1 the tip diameter is gradually reduced from x at the inlet to x<SP>1</SP> at the outlet end and the root diameter similarly from y to y<SP>1</SP> to produce equal tapers t. Figs. 3 and 4 show female and male rotors having a 6 to 4 land combination, in which the full lines indicate the grooves and lobes at the inlet ends of the rotors and the chain-dotted lines the grooves and lobes at the outlet ends. The lobes of the male rotor and the grooves of the female rotor have the-same radii R which are constant along the lengths of the rotors but are on decreasing pitch circle diameters. In a modification (Figs. 5, 6, not shown) to provide the taper the radius of the male rotor lobes decreases going from inlet to outlet, and that of the female rotor grooves increases in the same direction. Specification 627,162 is referred to.
GB29920/60A 1960-08-30 1960-08-30 Improvements in or relating to rotary engines and compressors Expired GB968195A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB29920/60A GB968195A (en) 1960-08-30 1960-08-30 Improvements in or relating to rotary engines and compressors
US134447A US3179330A (en) 1960-08-30 1961-08-28 Rotary engines and compressors
DE19611403534 DE1403534A1 (en) 1960-08-30 1961-08-29 Rotary compressor or machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29920/60A GB968195A (en) 1960-08-30 1960-08-30 Improvements in or relating to rotary engines and compressors

Publications (1)

Publication Number Publication Date
GB968195A true GB968195A (en) 1964-08-26

Family

ID=10299344

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29920/60A Expired GB968195A (en) 1960-08-30 1960-08-30 Improvements in or relating to rotary engines and compressors

Country Status (3)

Country Link
US (1) US3179330A (en)
DE (1) DE1403534A1 (en)
GB (1) GB968195A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608630A (en) * 2021-07-08 2023-01-11 Leybold Gmbh Screw pump, screw rotor, method of manufacturing a screw rotor, and use of a screw pump or a screw rotor

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE303170B (en) * 1963-09-12 1968-08-19 Svenska Rotor Maskiner Ab
SE310751B (en) * 1963-12-23 1969-05-12 Svenska Rotor Maskiner Ab
US4089625A (en) * 1974-12-21 1978-05-16 Comprotek, S. A. Rotary gas machine
DE3220516A1 (en) * 1982-06-01 1983-12-01 Karl Prof.Dr.-Ing. 3000 Hannover Bammert DRYING SCREW MACHINE
EP0104265B1 (en) * 1982-09-24 1987-12-16 Hitachi, Ltd. Method for producing a pair of screw rotors of a screw compressor
US4475878A (en) * 1982-09-27 1984-10-09 Hitachi, Ltd. Screw rotor with tooth form produced by thermal deformation and gear backlash
DE3278039D1 (en) * 1982-10-25 1988-03-03 Hitachi Ltd Screw rotor machine
FR2538463B1 (en) * 1982-12-23 1985-06-21 Dba VOLUMETRIC CONICAL SCREW MACHINE
JPH06100082B2 (en) * 1986-10-24 1994-12-12 株式会社日立製作所 Skrillyu fluid machine
JP2619468B2 (en) * 1988-04-06 1997-06-11 株式会社日立製作所 Oil-free screw fluid machine
JP3906806B2 (en) * 2003-01-15 2007-04-18 株式会社日立プラントテクノロジー Screw compressor and method and apparatus for manufacturing the rotor
US7882826B2 (en) * 2007-05-21 2011-02-08 GM Global Technology Operations LLC Tapered rotor assemblies for a supercharger
WO2009072307A1 (en) * 2007-12-07 2009-06-11 Daikin Industries, Ltd. Single screw compressor
DE102012009103A1 (en) * 2012-05-08 2013-11-14 Ralf Steffens spindle compressor
CN106401947B (en) * 2016-11-16 2018-03-30 中国石油大学(华东) A kind of screw rotor of variable-pitch and variable back lash
CN113153742B (en) * 2021-02-24 2022-07-12 西安交通大学 Variable-line double-screw rotor and design method thereof
CN115853771A (en) * 2023-02-16 2023-03-28 冰轮环境技术股份有限公司 Low-temperature BOG double-screw compressor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1164546A (en) * 1913-04-29 1915-12-14 Alfons H Neuland Displacement apparatus.
US1677980A (en) * 1925-08-05 1928-07-24 Montelius Carl Oscar Josef Rotary pump, motor, meter, or the like
GB384355A (en) * 1931-08-05 1932-12-08 Frederick Charles Greenfield Improvements in and relating to rotary machines for the compression and propulsion of
NL44178C (en) * 1934-10-16
FR789211A (en) * 1935-04-24 1935-10-25 Cfcmug Rotary positive displacement motor or compressor
US2134153A (en) * 1936-02-05 1938-10-25 S H Johnston Gear pump
US2210152A (en) * 1939-05-22 1940-08-06 Nellie M Gottschalt Gear pump
US2294805A (en) * 1942-03-28 1942-09-01 Robert B Robinson Rotary engine construction
US2477797A (en) * 1945-08-06 1949-08-02 Nellie M Gottschalt Gear pump with wear compensating means
US2931308A (en) * 1957-03-29 1960-04-05 Improved Machinery Inc Plural intermeshing screw structures
US2922377A (en) * 1957-09-26 1960-01-26 Joseph E Whitfield Multiple arc generated rotors having diagonally directed fluid discharge flow
US2939745A (en) * 1958-07-02 1960-06-07 Improved Machinery Inc Discharge apparatus
US3072065A (en) * 1959-09-08 1963-01-08 Leland A Borden Fluid means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2608630A (en) * 2021-07-08 2023-01-11 Leybold Gmbh Screw pump, screw rotor, method of manufacturing a screw rotor, and use of a screw pump or a screw rotor

Also Published As

Publication number Publication date
US3179330A (en) 1965-04-20
DE1403534A1 (en) 1969-01-30

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