DE3871053D1 - Roots-drehkolbenmaschine. - Google Patents

Roots-drehkolbenmaschine.

Info

Publication number: DE3871053D1
Authority: DE; Germany
Prior art keywords: rotary piston; roots; roots rotary; piston; rotary
Prior art date: 1987-09-19
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

DE8888115237T

Other languages

English (en)

Inventor

Yasuhiro C O Ebara Cor Niimura

Ritsuo C O Ebara Corpor Kikuta

Katsuaki C O Ebara Corpor 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.)

1987-09-19

Filing date

1988-09-16

Publication date

1992-06-17

1988-09-16 Application filed by Ebara Corp filed Critical Ebara Corp

1992-06-17 Application granted granted Critical

1992-06-17 Publication of DE3871053D1 publication Critical patent/DE3871053D1/de

2008-09-17 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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)

DE8888115237T 1987-09-19 1988-09-16 Roots-drehkolbenmaschine. Expired - Lifetime DE3871053D1 (de)

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 (1)

Publication Number	Publication Date
DE3871053D1 true DE3871053D1 (de)	1992-06-17

Family

ID=16983670

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8888115237T Expired - Lifetime DE3871053D1 (de)	1987-09-19	1988-09-16	Roots-drehkolbenmaschine.

Country Status (5)

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

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 (de) *	2011-07-27	2013-01-30	Trimec Industries Pty. Ltd.	Verbesserter Verdrängungsdurchflussmesser
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
GB2018897A (en) *	1978-03-31	1979-10-24	Evro Johnson Pumps Ltd	Rotary positive-displacement pumps
JPS5829999B2 (ja) *	1978-03-31	1983-06-25	工業技術院長	固形燃料のガス化装置
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

1987
- 1987-09-19 JP JP62235274A patent/JPS6477782A/ja active Granted
1988
- 1988-09-16 EP EP88115237A patent/EP0308827B1/de not_active Expired - Lifetime
- 1988-09-16 DE DE8888115237T patent/DE3871053D1/de not_active Expired - Lifetime
- 1988-09-19 KR KR1019880012088A patent/KR970009957B1/ko not_active IP Right Cessation
1989
- 1989-12-15 US US07/449,420 patent/US4943214A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
JPS6477782A (en)	1989-03-23
EP0308827A3 (en)	1989-10-25
EP0308827A2 (de)	1989-03-29
US4943214A (en)	1990-07-24
EP0308827B1 (de)	1992-05-13
KR970009957B1 (ko)	1997-06-19
KR890005393A (ko)	1989-05-13
JPH0310040B2 (de)	1991-02-12

Publication	Publication Date	Title
IT1227481B (it)	1991-04-12	Valvola rotativa.
DE3871053D1 (de)	1992-06-17	Roots-drehkolbenmaschine.
DE3765919D1 (de)	1990-12-06	3-aryloxy-3-substituierte-propanamine.
IT8721099A0 (it)	1987-06-29	Valvola rotativa.
IT1227377B (it)	1991-04-08	Valvola rotativa.
DE69001833D1 (de)	1993-07-15	Hydraulische drehkolbenmaschine.
DE3679222D1 (de)	1991-06-20	Drehkolbenkompressor.
DE3769598D1 (de)	1991-05-29	Rotationskolbengeblaese.
IT1227495B (it)	1991-04-12	Valvola rotativa.
FI881445L (fi)	1988-09-29	Kombinationskolv.
NO874246L (no)	1989-04-13	Dreiehode.
DE69015874D1 (de)	1995-02-23	Rotationshydraulikpumpe.
ES2021612B3 (es)	1991-11-16	Cilindro.
DE3669753D1 (de)	1990-04-26	Roots-verdichter.
DE69000176D1 (de)	1992-08-13	Hydraulische drehkolbenmaschine.
DE3865031D1 (de)	1991-10-31	Drehkolbenmotor.
DE3677221D1 (de)	1991-02-28	Rotationskolbenmaschine.
DE3853249D1 (de)	1995-04-13	Drehpositionskodierer.
IT8821145A0 (it)	1988-06-28	Erpice ruotante.
DE69005881D1 (de)	1994-02-24	Rotationsmäher.
FI895680A0 (fi)	1989-11-28	Flercylindrisk kolvpump.
DE3862948D1 (de)	1991-07-04	Drehdichtung.
DE3765121D1 (de)	1990-10-25	Drehkolbenmaschine.
BR8804152A (pt)	1990-03-27	Arranjo de deslocamento de pistao rotativo
IT8983452A0 (it)	1989-07-07	Impaccatore rotante.

Legal Events

Date	Code	Title	Description
1993-06-09	8364	No opposition during term of opposition