ZA946809B - Check valve structures for liquid ring pumps. - Google Patents

Check valve structures for liquid ring pumps.

Info

Publication number: ZA946809B
Authority: ZA; South Africa
Prior art keywords: check valve; liquid ring; valve structures; ring pumps; pumps
Prior art date: 1993-09-29

Application number

ZA946809A

Other languages

English (en)

Inventor

Louis J Lengyel

Ramesh B Shenoi

Original Assignee

Nask Engineering Company

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.)

1993-09-29

Filing date

1994-09-05

Publication date

1995-04-20

1994-09-05 Application filed by Nask Engineering Company filed Critical Nask Engineering Company

1995-04-20 Publication of ZA946809B publication Critical patent/ZA946809B/xx

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- 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
- F04C19/005—Details concerning the admission or discharge
- F04C19/008—Port members in the form of conical or cylindrical pieces situated in the centre of the impeller

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Details Of Reciprocating Pumps (AREA)
Applications Or Details Of Rotary Compressors (AREA)
Details And Applications Of Rotary Liquid Pumps (AREA)
Rotary Pumps (AREA)

ZA946809A 1993-09-29 1994-09-05 Check valve structures for liquid ring pumps. ZA946809B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US08/128,877 US5356268A (en)	1993-09-29	1993-09-29	Check valve structures for liquid ring pumps

Publications (1)

Publication Number	Publication Date
ZA946809B true ZA946809B (en)	1995-04-20

Family

ID=22437421

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA946809A ZA946809B (en)	1993-09-29	1994-09-05	Check valve structures for liquid ring pumps.

Country Status (11)

Country	Link
US (1)	US5356268A (xx)
EP (1)	EP0645537B1 (xx)
JP (1)	JPH07151086A (xx)
KR (1)	KR100348944B1 (xx)
AU (1)	AU670713B2 (xx)
BR (1)	BR9403890A (xx)
CA (1)	CA2117622A1 (xx)
DE (1)	DE69418559T2 (xx)
FI (1)	FI944493L (xx)
GB (1)	GB2282413B (xx)
ZA (1)	ZA946809B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5580222A (en) *	1993-12-03	1996-12-03	Tuthill Corporation	Liquid ring vacuum pump and method of assembly
KR100308021B1 (ko) *	1998-10-21	2001-10-19	구자홍	세탁기의도어힌지장치
US6659711B2 (en)	2001-11-15	2003-12-09	General Electric Co.	Methods and apparatus for regulating turbine cooling airflow supply systems
US20120076671A1 (en)	2009-06-26	2012-03-29	Douglas Eric Bissell	Method of converting liquid ring pumps having sealing liquid vents
US20110194950A1 (en) *	2010-02-10	2011-08-11	Shenoi Ramesh B	Efficiency improvements for liquid ring pumps
US9689387B2 (en) *	2012-10-30	2017-06-27	Gardner Denver Nash, Llc	Port plate of a flat sided liquid ring pump having a gas scavenge passage therein
US9541086B2 (en) *	2013-10-01	2017-01-10	Gardner Denver Nash Llc	Liquid ring pump with modular construction, an inter-stage bypass and overload protection
EP3243004B1 (en) *	2015-01-08	2020-03-18	Gardner Denver Nash LLC	Low pressure sealing liquid entry area in a compressor type liquid ring pump
GB2571970B (en) *	2018-03-14	2020-09-16	Edwards Tech Vacuum Engineering (Qingdao) Co Ltd	A liquid ring pump manifold with integrated non-return valve

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB190511378A (en) *	1905-05-31	1906-04-12	James Atkinson	Improvements in Rotary Pumps and Motors.
US1180613A (en) *	1913-03-19	1916-04-25	Siemens Schuckertwerke Gmbh	Rotary pump.
US1278700A (en) *	1917-02-08	1918-09-10	George C Mcfarlane	Rotary compressor and vacuum-pump.
US2344396A (en) *	1940-01-22	1944-03-14	Dardelet Robert Leon	Compression or depression pump of the liquid ring type
US2453373A (en) *	1944-08-28	1948-11-09	Kollsman Paul	Compressor
DE1503605B2 (de) *	1965-04-28	1971-05-27	Siemens AG, 1000 Berlin u 8000 München	Rueckschlagventil fuer eine fluessigkeitsringgaspumpe
FR1594612A (xx) *	1968-03-07	1970-06-08
GB1284473A (en) *	1969-04-26	1972-08-09	Siemens Ag	Improvements in or relating to liquid ring pumps
DE2318538B2 (de) *	1973-04-12	1975-12-04	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Verteiler für einen Flüssigkeitsringgasverdichter
DE2704863A1 (de) *	1977-02-05	1978-08-10	Kloeckner Humboldt Deutz Ag	Rueckschlagventil fuer eine fluessigkeitsring-gaspumpe
JPS555428A (en) *	1978-06-22	1980-01-16	Nakamura Suikan:Kk	Water ring pump of side-air-port type
GB2064002A (en) *	1979-11-22	1981-06-10	Graham Precision Pumps Ltd	Liquid Ring Vacuum Pumps
US4498844A (en) *	1983-08-08	1985-02-12	The Nash Engineering Company	Liquid ring pump with conical or cylindrical port member
DE3337837A1 (de) *	1983-10-18	1985-04-25	Siemens AG, 1000 Berlin und 8000 München	Fluessigkeitsringpumpe
SU1239405A1 (ru) *	1984-12-28	1986-06-23	Предприятие П/Я А-3605	Жидкостно-кольцева машина
JPS61200392A (ja) *	1985-02-28	1986-09-04	Asahi Malleable Iron Co Ltd	回転ピストン形圧縮機
DE3935247C2 (de) *	1988-11-07	1994-08-11	Siemens Ag	Flüssigkeitsringpumpe
ATE82620T1 (de) *	1989-06-05	1992-12-15	Siemens Ag	Fluessigkeitsringverdichter.

1993
- 1993-09-29 US US08/128,877 patent/US5356268A/en not_active Expired - Lifetime
1994
- 1994-09-01 CA CA002117622A patent/CA2117622A1/en not_active Abandoned
- 1994-09-05 ZA ZA946809A patent/ZA946809B/xx unknown
- 1994-09-09 EP EP94306619A patent/EP0645537B1/en not_active Expired - Lifetime
- 1994-09-09 GB GB9418211A patent/GB2282413B/en not_active Expired - Lifetime
- 1994-09-09 DE DE69418559T patent/DE69418559T2/de not_active Expired - Lifetime
- 1994-09-16 AU AU73048/94A patent/AU670713B2/en not_active Expired
- 1994-09-23 KR KR1019940023952A patent/KR100348944B1/ko not_active Expired - Lifetime
- 1994-09-27 BR BR9403890A patent/BR9403890A/pt not_active IP Right Cessation
- 1994-09-28 FI FI944493A patent/FI944493L/fi unknown
- 1994-09-29 JP JP6235661A patent/JPH07151086A/ja active Pending

Also Published As

Publication number	Publication date
DE69418559D1 (de)	1999-06-24
DE69418559T2 (de)	2000-01-13
CA2117622A1 (en)	1995-03-30
KR100348944B1 (ko)	2002-11-04
FI944493A7 (fi)	1995-03-30
GB2282413A (en)	1995-04-05
GB9418211D0 (en)	1994-10-26
EP0645537B1 (en)	1999-05-19
US5356268A (en)	1994-10-18
FI944493L (fi)	1995-03-30
FI944493A0 (fi)	1994-09-28
GB2282413B (en)	1997-06-11
AU7304894A (en)	1995-04-13
KR950008986A (ko)	1995-04-21
BR9403890A (pt)	1995-06-06
EP0645537A1 (en)	1995-03-29
AU670713B2 (en)	1996-07-25
JPH07151086A (ja)	1995-06-13

Publication	Publication Date	Title
EP0648509A3 (en)	1995-06-28	Peristaltic pump.
GB2264161B (en)	1995-05-03	Fluid check valve
GB2233049B (en)	1992-12-09	Fluid dispenser valve assembly.
EP0746683A4 (en)	1996-10-17	FLUID BEARING PUMP
HUH3849A (hu)	1998-03-30	Szivattyú, főleg üzemanyag-szivattyú, valamint szivattyúház ilyen szivattyúhoz
EP0650443A4 (en)	1996-12-27	DISCHARGE SYSTEM FOR FLOWABLE MEDIA.
DE69300399D1 (de)	1995-09-28	Vordruckpumpe.
PH31366A (en)	1998-08-12	Liquid pumping container.
EP0669141A3 (en)	1996-03-27	Piston pump and exhalation valve.
EP0679099A4 (en)	1996-01-31	PERISTALTIC PUMP ARRANGEMENT.
AU1956295A (en)	1995-10-23	Fluid check valve
AU3000497A (en)	1997-11-26	Reciprocating liquid pump with disc check valve
EP0631054A3 (en)	1996-06-05	Diverter valve for high pressure cleaners.
EP0608144A3 (en)	1994-12-21	Axial piston pump.
EP0626684A3 (en)	1996-01-31	Hydrodynamic pump.
ZA931530B (en)	1993-09-27	Valve.
EP0654583A3 (en)	1995-10-18	Eccentric fluid displacement sleeve.
ZA946809B (en)	1995-04-20	Check valve structures for liquid ring pumps.
AU7162594A (en)	1995-03-30	Liquid ring gas pump
EP0661487A3 (en)	1995-09-13	Valve.
GR3016983T3 (en)	1995-11-30	One-way valve for fluids.
EP0666419A3 (en)	1995-10-18	Hydraulic pressure device with swash plate.
GB9800441D0 (en)	1998-03-04	Two-stage liquid ring pumps
DE69300314D1 (de)	1995-09-07	Druckprobepumpe.
AU1650492A (en)	1992-12-30	Multiple flow, liquid ring pump