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GB1172993A - Improvements in or relating to Rotary-Positive Displacement Machines - Google Patents

Improvements in or relating to Rotary-Positive Displacement Machines

Info

Publication number
GB1172993A
GB1172993A GB8032/66A GB803266A GB1172993A GB 1172993 A GB1172993 A GB 1172993A GB 8032/66 A GB8032/66 A GB 8032/66A GB 803266 A GB803266 A GB 803266A GB 1172993 A GB1172993 A GB 1172993A
Authority
GB
United Kingdom
Prior art keywords
rotors
compressor
rotary
injected
housing
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
GB8032/66A
Inventor
Stanley Berry Turner
Kenneth Ernest Challis
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.)
GE Healthcare UK Ltd
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey 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 GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Priority to GB8032/66A priority Critical patent/GB1172993A/en
Priority to US606172A priority patent/US3430848A/en
Priority to DE19671628348 priority patent/DE1628348A1/en
Priority to FR95979A priority patent/FR1512132A/en
Publication of GB1172993A publication Critical patent/GB1172993A/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
    • 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
    • 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
    • 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)

Abstract

1,172,993. Rotary compressors and motors. PLESSEY CO. Ltd. Dec.28, 1966 [Feb.23, 1966], No.8032/66. Heading F1F. A rotary positive-displacement compressor or motor having at least one rotor forming chambers whose volume changes between low and highpressure zones, wherein a jet of coolant fluid identical with the working fluid is injected into the low-pressure zone. As shown, a Roots' type compressor having identical rotors 2, 3 connected by phasing gears to rotate in the direction of the arrows, includes in the inlet line 8 an air-injection pipe 10 through which cooling air under pressure from a source 11 and controlled by means 12 is injected at the zone of intermesh of the two rotors in the operating condition of the compressor when little or no operating air is being passed through it to cool the rotors. The rotors and housing will thus be cooled substantially equally and thus avoid uneven expansion of the compressor parts and possible seizure and allow closer limits between the rotors and housing to be worked to. The invention may also be applied to a gear-pump when used with a compressible working fluid.
GB8032/66A 1966-02-23 1966-02-23 Improvements in or relating to Rotary-Positive Displacement Machines Expired GB1172993A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB8032/66A GB1172993A (en) 1966-02-23 1966-02-23 Improvements in or relating to Rotary-Positive Displacement Machines
US606172A US3430848A (en) 1966-02-23 1966-12-30 Rotary-displacement compressors
DE19671628348 DE1628348A1 (en) 1966-02-23 1967-02-22 Rotary displacement machines
FR95979A FR1512132A (en) 1966-02-23 1967-02-22 Rotary machine, such as compressor or rotary motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8032/66A GB1172993A (en) 1966-02-23 1966-02-23 Improvements in or relating to Rotary-Positive Displacement Machines

Publications (1)

Publication Number Publication Date
GB1172993A true GB1172993A (en) 1969-12-03

Family

ID=9844464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8032/66A Expired GB1172993A (en) 1966-02-23 1966-02-23 Improvements in or relating to Rotary-Positive Displacement Machines

Country Status (4)

Country Link
US (1) US3430848A (en)
DE (1) DE1628348A1 (en)
FR (1) FR1512132A (en)
GB (1) GB1172993A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6412092A (en) * 1987-07-01 1989-01-17 Kobe Steel Ltd Vacuum pump of screw type
US5131817A (en) * 1990-03-22 1992-07-21 The Nash Engineering Company Two-stage pumping system
DE20015744U1 (en) 2000-09-12 2001-01-25 Werner Rietschle GmbH + Co. KG, 79650 Schopfheim Pump with water feed
CN106391376B (en) * 2016-10-10 2019-05-21 重庆通用工业(集团)有限责任公司 A kind of injection apparatus for vapour compression machine fluid infusion
CN106762632A (en) * 2016-12-12 2017-05-31 无锡吴创环境科技有限公司 A kind of Roots Blower Impeller

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2489887A (en) * 1946-07-11 1949-11-29 Roots Connersville Blower Corp Rotary pump
US2721694A (en) * 1954-01-29 1955-10-25 New York Air Brake Co First stage mechanical pump for use in a two stage vacuum pumping system
GB838074A (en) * 1955-07-27 1960-06-22 Manfred Mathias Dunkel Improvements in or relating to rotary piston blowers
GB772350A (en) * 1955-09-13 1957-04-10 Hanomag Ag A method and a device to improve the volumetric efficiency of root's blowers
US3059396A (en) * 1958-01-07 1962-10-23 Leybold Anlagen Holding A G A device for drawing off gaseous components from a gas-vapour mixture

Also Published As

Publication number Publication date
US3430848A (en) 1969-03-04
FR1512132A (en) 1968-02-02
DE1628348A1 (en) 1971-06-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees