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GB1030458A - Improvements in or relating to rotary fluid compressors - Google Patents

Improvements in or relating to rotary fluid compressors

Info

Publication number
GB1030458A
GB1030458A GB14266/65A GB1426665A GB1030458A GB 1030458 A GB1030458 A GB 1030458A GB 14266/65 A GB14266/65 A GB 14266/65A GB 1426665 A GB1426665 A GB 1426665A GB 1030458 A GB1030458 A GB 1030458A
Authority
GB
United Kingdom
Prior art keywords
diameter
rolling
rotors
profile
rotor
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
GB14266/65A
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.)
Midland Ross Corp
Original Assignee
Midland Ross Corp
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 Midland Ross Corp filed Critical Midland Ross Corp
Publication of GB1030458A publication Critical patent/GB1030458A/en
Expired legal-status Critical Current

Links

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
    • F04C18/12—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
    • F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • 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
    • F01C1/126—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 elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

1,030,458. Rotary compressors. MIDLANDROSS CORPORATION. April 5, 1965 [April 6, 1964], No. 14266/65. Heading F1F. A rotary fluid compressor of the "Roots" blower type in which a pair of lobed rotors disposed within a chamber on spaced parallel axes are rotatable in unison in opposite directions comprises rotors wherein each lobe profile is epicycloidal and generated by a point on the circumference of a rolling circle of diameter not greater than A, Fig. 3, rolling on a portion of the exterior of a base circle of diameter B and each recess profile is hypocycloidal and generated by a rolling circle of a diameter not less than A rolling on an inside adjacent portion of the same base circle and wherein A=B/2N where N is equal to the number of lobes, usually two, and in which the spacing between the rotor axes equals B. To permit of a satisfactory working clearance between the rotors and between a rotor and the casing, which is of circular profile and of a diameter D=B+B/N the diameter of the lobe rolling circle equals A-C and the diameter of the recess rolling circle equals A+C where C is of the order of 0À001B. The rotors can be accurately manufactured in dies from sintered metal powders. To ensure accuracy, the rotor profile is produced 100 times actual size on plywood and reduced to actual size by a pantograph to produce a template for the die-maker. Longitudinal cooling fins are provided on the casing body and transverse cooling fins on an end cover.
GB14266/65A 1964-04-06 1965-04-05 Improvements in or relating to rotary fluid compressors Expired GB1030458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US357561A US3275225A (en) 1964-04-06 1964-04-06 Fluid compressor

Publications (1)

Publication Number Publication Date
GB1030458A true GB1030458A (en) 1966-05-25

Family

ID=23406111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14266/65A Expired GB1030458A (en) 1964-04-06 1965-04-05 Improvements in or relating to rotary fluid compressors

Country Status (3)

Country Link
US (1) US3275225A (en)
DE (1) DE1503579C3 (en)
GB (1) GB1030458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999063228A1 (en) * 1998-05-29 1999-12-09 Ballard Power Systems Inc. Rotary piston blower

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703849B1 (en) * 1968-07-18 1971-07-29 Maag Zahnraeder & Maschinen Ag Toothing for gear pump with auxiliary gear
US4595349A (en) * 1983-06-20 1986-06-17 Eaton Corp. Supercharger rotor, shaft, and gear arrangement
JPS6075793A (en) * 1983-09-30 1985-04-30 Aisin Seiki Co Ltd Root's blower
JPH0121192Y2 (en) * 1985-06-07 1989-06-23
JPH0623753Y2 (en) * 1985-07-26 1994-06-22 トヨタ自動車株式会社 Roots pump
CH667492A5 (en) * 1985-08-31 1988-10-14 Wankel Felix INNER AXIS ROTARY PISTON.
US4797078A (en) * 1986-06-11 1989-01-10 Wankel Gmbh Bearing arrangement of an external-axial rotary piston blower
JP2761233B2 (en) * 1989-02-17 1998-06-04 富士重工業株式会社 Roots type blower
EP0472751B1 (en) * 1990-08-27 1994-05-18 Leybold Aktiengesellschaft Rotor for a lobe rotor type vacuum pump
US5228837A (en) * 1992-09-30 1993-07-20 The United States Of America As Represented By The Secretary Of The Navy High pressure pump for electro-rheological fluids
JPH10152509A (en) * 1996-05-14 1998-06-09 Mitsui Chem Inc Vapor-phase polymerization and vapor-phase polymerization apparatus and blower therefor
JPH10266982A (en) * 1997-03-21 1998-10-06 Tochigi Fuji Ind Co Ltd Roots type fluid machine
US6138646A (en) 1997-07-18 2000-10-31 Hansen; Craig N. Rotary fluid mover
JP4613811B2 (en) * 2005-12-09 2011-01-19 株式会社豊田自動織機 Roots fluid machinery
JP2018168714A (en) * 2017-03-29 2018-11-01 株式会社豊田自動織機 Hydrogen circulation pump for fuel cells
CN108153937A (en) * 2017-12-03 2018-06-12 长春黄金研究院 The design of shape line and processing method of a kind of two blade profiles rotor profile
JP7213423B2 (en) * 2019-07-24 2023-01-27 株式会社豊田自動織機 electric roots pump
US11085298B1 (en) * 2020-12-03 2021-08-10 Marlin Harold Thompson Rotary internal combustion engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US166295A (en) * 1875-08-03 Improvement in rotary pressure-blowers
US2547392A (en) * 1946-04-02 1951-04-03 Myron F Hill Continuous contact internal rotor for engines
US2666336A (en) * 1950-06-10 1954-01-19 Hill Myron Francis Internal gear teeth
US2994277A (en) * 1957-02-11 1961-08-01 Merritt Henry Edward Form and methods of manufacture of rotors for fluid pumps
US2965039A (en) * 1957-03-31 1960-12-20 Morita Yoshinori Gear pump
US2988065A (en) * 1958-03-11 1961-06-13 Nsu Motorenwerke Ag Rotary internal combustion engine
US3089638A (en) * 1958-12-01 1963-05-14 Dresser Ind Impellers for fluid handling apparatus of the rotary positive displacement type
US3106166A (en) * 1960-01-20 1963-10-08 Waterous Co Pretimed three-lobed rotary pump
US3105634A (en) * 1960-12-27 1963-10-01 Polysius Gmbh Rotary piston for a roots blower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999063228A1 (en) * 1998-05-29 1999-12-09 Ballard Power Systems Inc. Rotary piston blower
US6284397B1 (en) 1998-05-29 2001-09-04 Ballard Power Systems Inc. Rotary piston blower for supplying an oxidant stream to a fuel cell

Also Published As

Publication number Publication date
DE1503579C3 (en) 1975-02-20
US3275225A (en) 1966-09-27
DE1503579A1 (en) 1970-03-19
DE1503579B2 (en) 1974-07-04

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