JPH0310040B2 - - Google Patents

Info

Publication number
JPH0310040B2
JPH0310040B2 JP62235274A JP23527487A JPH0310040B2 JP H0310040 B2 JPH0310040 B2 JP H0310040B2 JP 62235274 A JP62235274 A JP 62235274A JP 23527487 A JP23527487 A JP 23527487A JP H0310040 B2 JPH0310040 B2 JP H0310040B2
Authority
JP
Japan
Prior art keywords
rotor
diameter
type
roots
involute
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 - Lifetime
Application number
JP62235274A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6477782A (en
Inventor
Yoshihiro Niimura
Ritsuo Kikuta
Katsuaki Usui
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.)
Ebara Corp
Original Assignee
Ebara 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 Ebara Corp filed Critical Ebara Corp
Priority to JP62235274A priority Critical patent/JPS6477782A/ja
Priority to EP88115237A priority patent/EP0308827B1/en
Priority to DE8888115237T priority patent/DE3871053D1/de
Priority to KR1019880012088A priority patent/KR970009957B1/ko
Publication of JPS6477782A publication Critical patent/JPS6477782A/ja
Priority to US07/449,420 priority patent/US4943214A/en
Publication of JPH0310040B2 publication Critical patent/JPH0310040B2/ja
Granted 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
    • 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
    • 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
    • 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
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
JP62235274A 1987-09-19 1987-09-19 Rotary machine of roots type Granted JPS6477782A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62235274A JPS6477782A (en) 1987-09-19 1987-09-19 Rotary machine of roots type
EP88115237A EP0308827B1 (en) 1987-09-19 1988-09-16 Roots type rotary machine
DE8888115237T DE3871053D1 (de) 1987-09-19 1988-09-16 Roots-drehkolbenmaschine.
KR1019880012088A KR970009957B1 (ko) 1987-09-19 1988-09-19 루우트 타입 회전기계
US07/449,420 US4943214A (en) 1987-09-19 1989-12-15 Two-shaft type rotary machine having a tip circle diameter to shaft diameter within a certain range

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235274A JPS6477782A (en) 1987-09-19 1987-09-19 Rotary machine of roots type

Publications (2)

Publication Number Publication Date
JPS6477782A JPS6477782A (en) 1989-03-23
JPH0310040B2 true JPH0310040B2 (en]) 1991-02-12

Family

ID=16983670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235274A Granted JPS6477782A (en) 1987-09-19 1987-09-19 Rotary machine of roots type

Country Status (5)

Country Link
US (1) US4943214A (en])
EP (1) EP0308827B1 (en])
JP (1) JPS6477782A (en])
KR (1) KR970009957B1 (en])
DE (1) DE3871053D1 (en])

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397134B (de) * 1991-02-19 1994-02-25 Hoerbiger Ventilwerke Ag Ventil
GB9200217D0 (en) * 1992-01-07 1992-02-26 Snell Michael J Water turbines
DE19849804C2 (de) * 1998-10-29 2001-10-04 Voith Turbo Kg Baureihe für Zahnradpumpen mit unterschiedlicher Förderleistung und Verfahren zur Herstellung der einzelnen Zahnradpumpen der Baureihe
US6644947B2 (en) * 2002-03-14 2003-11-11 Tuthill Corporation Wave tooth gears using identical non-circular conjugating pitch curves
CN100439716C (zh) * 2002-12-31 2008-12-03 北京依品非标准设备有限公司 一种用于无油真空泵的渐开线、直线爪型转子结构
GB0319344D0 (en) * 2003-08-18 2003-09-17 Boc Group Plc Reducing exhaust pulsation in dry pumps
US10487828B2 (en) * 2004-10-12 2019-11-26 Joe Dick Rector Self-priming positive displacement pump with sectioned dividing wall
JP4732833B2 (ja) * 2005-08-22 2011-07-27 樫山工業株式会社 スクリューロータおよび真空ポンプ
JP4767625B2 (ja) * 2005-08-24 2011-09-07 樫山工業株式会社 多段ルーツ式ポンプ
JP4613811B2 (ja) * 2005-12-09 2011-01-19 株式会社豊田自動織機 ルーツ式流体機械
TWI438342B (zh) * 2006-07-28 2014-05-21 Lot Vacuum Co Ltd 具有魯式與螺旋轉子之複合型乾式真空幫浦
DE102007023949A1 (de) * 2007-05-23 2008-11-27 Scepanik, Hans-Jürgen Kompressor mit Gleichströmung
EP2551649A1 (en) * 2011-07-27 2013-01-30 Trimec Industries Pty. Ltd. Improved positive displacement flow meter
JP5542873B2 (ja) * 2012-06-06 2014-07-09 太陽機械工業株式会社 歯車及び歯車設計方法
DE102013110091B3 (de) * 2013-09-13 2015-02-12 Pfeiffer Vacuum Gmbh Wälzkolbenpumpe mit zwei Rotoren
CN104963855A (zh) * 2015-04-14 2015-10-07 上海大学 输送多相流介质的螺旋式转子泵的型线生成方法
JP6120468B1 (ja) * 2016-06-29 2017-04-26 Ｏｓセミテック株式会社 真空ポンプ用気体移送体およびこれを用いた真空ポンプ
CN106194716B (zh) * 2016-09-18 2018-10-26 中国石油大学(华东) 一种三叶椭圆弧型凸轮转子
CN111197574B (zh) * 2018-11-20 2021-07-23 宿迁学院 一种泵用高性能的新抛物线转子
IT202100012836A1 (it) * 2021-05-18 2022-11-18 Roberto Manzini Pompa volumetrica a lobi
JP2024112393A (ja) 2023-02-08 2024-08-21 株式会社荏原製作所 真空ポンプおよびルーツロータの形状を決定する方法
JP2024113550A (ja) 2023-02-09 2024-08-22 株式会社荏原製作所 真空ポンプ

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1442018A (en) * 1921-05-13 1923-01-09 Wendell Evert Jansen Rotor for rotary pumps
US3089638A (en) * 1958-12-01 1963-05-14 Dresser Ind Impellers for fluid handling apparatus of the rotary positive displacement type
US3371856A (en) * 1966-03-24 1968-03-05 Fuller Co Modified cycloidal impeller
JPS52111007A (en) * 1976-03-13 1977-09-17 Ebara Corp Shaft stabilizing of rotary pump
US4210410A (en) * 1977-11-17 1980-07-01 Tokico Ltd. Volumetric type flowmeter having circular and involute tooth shape rotors
JPS5829999B2 (ja) * 1978-03-31 1983-06-25 工業技術院長 固形燃料のガス化装置
GB2018897A (en) * 1978-03-31 1979-10-24 Evro Johnson Pumps Ltd Rotary positive-displacement pumps
JPS5591786A (en) * 1978-12-29 1980-07-11 Ebara Corp Rotor for rotary piston pump
GB2088957B (en) * 1980-12-05 1984-12-12 Boc Ltd Rotary positive-displacement fluidmachines
GB2125109A (en) * 1982-08-10 1984-02-29 Paul William Nachtrieb Rotary positive-displacement fluid-machines
JPS6014945A (ja) * 1983-07-05 1985-01-25 イオニ−株式会社 精米装置
JPS61197793A (ja) * 1985-02-26 1986-09-02 Ebara Corp 多段複葉型真空ポンプにおける冷却方法
JPS62189388A (ja) * 1987-01-30 1987-08-19 Ebara Corp 多段ル−ツ型真空ポンプ

Also Published As

Publication number Publication date
EP0308827A2 (en) 1989-03-29
KR970009957B1 (ko) 1997-06-19
JPS6477782A (en) 1989-03-23
US4943214A (en) 1990-07-24
KR890005393A (ko) 1989-05-13
EP0308827B1 (en) 1992-05-13
EP0308827A3 (en) 1989-10-25
DE3871053D1 (de) 1992-06-17

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