DE2967131D1 - Two stage liquid ring pump - Google Patents

Two stage liquid ring pump

Info

Publication number: DE2967131D1
Authority: DE; Germany
Prior art keywords: liquid ring; ring pump; stage liquid; stage; pump
Prior art date: 1979-08-09
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

DE7979901584T

Other languages

German (de)

Inventor

Harold K Haavik

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.)

Nash Engineering Co

Original Assignee

Nash Engineering Co

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.)

1979-08-09

Filing date

1979-08-09

Publication date

1984-08-30

1979-08-09 Application filed by Nash Engineering Co filed Critical Nash Engineering Co

1984-08-30 Application granted granted Critical

1984-08-30 Publication of DE2967131D1 publication Critical patent/DE2967131D1/en

Status Expired 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
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply

Landscapes

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

DE7979901584T 1979-08-09 1979-08-09 Two stage liquid ring pump Expired DE2967131D1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US1979/000586 WO1981000438A1 (en)	1979-08-09	1979-08-09	Two stage liquid ring pump

Publications (1)

Publication Number	Publication Date
DE2967131D1 true DE2967131D1 (en)	1984-08-30

Family

ID=22147658

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE7979901584T Expired DE2967131D1 (en)	1979-08-09	1979-08-09	Two stage liquid ring pump

Country Status (4)

Country	Link
EP (1)	EP0033726B1 (en)
BR (1)	BR7909020A (en)
DE (1)	DE2967131D1 (en)
WO (1)	WO1981000438A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5366348A (en) *	1993-09-24	1994-11-22	Graham Manufacturing Co., Inc.	Method and apparatus for selectively varying the flow rate of service liquid through a two stage liquid ring vacuum pump
DE19758340A1 (en)	1997-12-22	1999-07-08	Gardner Denver Wittig Gmbh	Multi-flow liquid ring pump
DE19932632A1 (en) *	1999-07-13	2001-02-01	Siemens Ag	Two-stage fluid ring machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE617521C (en) *	1934-03-29	1935-08-20	Siemens Schuckertwerke Akt Ges	Compressor with rotating liquid ring
GB691425A (en) *	1950-06-03	1953-05-13	Otto Siemen	Improvements in or relating to two stage liquid-ring air-pumps
US3108738A (en) *	1958-12-30	1963-10-29	Siemen & Hinsch Gmbh	Liquid-ring gas pumps
US3217975A (en) *	1964-12-17	1965-11-16	Nash Engineering Co	Pump device
DE1503605B2 (en) *	1965-04-28	1971-05-27	Siemens AG, 1000 Berlin u 8000 München	CHECK VALVE FOR A LIQUID RING GAS PUMP
GB1284473A (en) *	1969-04-26	1972-08-09	Siemens Ag	Improvements in or relating to liquid ring pumps
US4132504A (en) *	1976-04-07	1979-01-02	General Signal Corporation	Liquid ring pump
US4083658A (en) *	1976-09-08	1978-04-11	Siemens Aktiengesellschaft	Liquid ring compressor including a calibrated gas input opening

1979
- 1979-08-09 WO PCT/US1979/000586 patent/WO1981000438A1/en not_active Ceased
- 1979-08-09 BR BR7909020A patent/BR7909020A/en not_active IP Right Cessation
- 1979-08-09 DE DE7979901584T patent/DE2967131D1/en not_active Expired
1981
- 1981-02-24 EP EP79901584A patent/EP0033726B1/en not_active Expired

Also Published As

Publication number	Publication date
EP0033726A4 (en)	1981-06-23
BR7909020A (en)	1981-06-09
EP0033726A1 (en)	1981-08-19
WO1981000438A1 (en)	1981-02-19
EP0033726B1 (en)	1984-07-25

Publication	Publication Date	Title
GB2060787B (en)	1983-07-13	Fluid pump
GB2053371B (en)	1983-06-22	Liquid helium pump
GB2066373B (en)	1983-08-03	Pump arrangement
GB2061755B (en)	1983-06-22	Deaerating liquid
JPS569683A (en)	1981-01-31	Pump
DE2964174D1 (en)	1983-01-05	Liquid ring pump
AU552788B2 (en)	1986-06-19	Liquid ring pump
DE3065981D1 (en)	1984-02-02	Fluid pump
DE3469780D1 (en)	1988-04-14	Liquid ring pump
EP0274272A3 (en)	1989-02-01	Two stage liquid ring pump
JPS5612083A (en)	1981-02-05	Fluid pump
JPS55153889A (en)	1980-12-01	Fluid pump
JPS56596A (en)	1981-01-07	Liquid recirculation type centrifugal pump
GB2107786B (en)	1985-05-15	Liquid ring pumps
JPS5644498A (en)	1981-04-23	Pump
JPS5629083A (en)	1981-03-23	Pump
GB2054748B (en)	1983-03-23	Pump impeller
GB2147050B (en)	1987-05-07	Liquid ring pumps
GB2045344B (en)	1983-04-20	Pump
DE2967131D1 (en)	1984-08-30	Two stage liquid ring pump
AU524905B2 (en)	1982-10-07	Liquid ring pump
JPS52122907A (en)	1977-10-15	Liquid ring pumps
GB1545334A (en)	1979-05-10	Liquid ring pumps
AU500424B2 (en)	1979-05-24	Liquid ring pump arrangement
JPS5620791A (en)	1981-02-26	Pump

Legal Events

Date	Code	Title	Description
1988-07-28	8365	Fully valid after opposition proceedings
1994-08-11	8339	Ceased/non-payment of the annual fee