EP1510765A2 - Verbesserungen an oder bei Pumpen - Google Patents

Verbesserungen an oder bei Pumpen Download PDF

Info

Publication number: EP1510765A2
Authority: EP; European Patent Office
Prior art keywords: pump assembly; pump; reservoir; fluid; elbow
Prior art date: 2001-12-04
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.): Granted

Application number

EP04106143A

Other languages

English (en)

French (fr)

Other versions

EP1510765A3 (de

EP1510765B1 (de

Inventor

Bernard Leach

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.)

Aspen Pumps Ltd

Original Assignee

Aspen Pumps 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.)

2001-12-04

Filing date

2002-12-04

Publication date

2005-03-02

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26246834&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1510765(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2001-12-04 Priority claimed from GBGB0129096.4A external-priority patent/GB0129096D0/en

2002-12-04 Application filed by Aspen Pumps Ltd filed Critical Aspen Pumps Ltd

2002-12-04 Priority to SI200230690T priority Critical patent/SI1510765T1/sl

2005-03-02 Publication of EP1510765A2 publication Critical patent/EP1510765A2/de

2005-08-31 Publication of EP1510765A3 publication Critical patent/EP1510765A3/de

2008-02-20 Application granted granted Critical

2008-02-20 Publication of EP1510765B1 publication Critical patent/EP1510765B1/de

2008-05-06 Priority to CY20081100479T priority patent/CY1107933T1/el

2022-12-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

Definitions

the present invention relates to improvements in or relating to pumps, in particular to pumps in air conditioning installations.
a conduit elbow having a first opening and a second opening and integrally housing within it a pump assembly comprising a pump and a reservoir; wherein the pump assembly comprises a pump assembly inlet and a pump assembly outlet, and wherein the pump assembly inlet is in fluid communication with the reservoir, said reservoir having a reservoir inlet in fluid communication with a first fluid-carrying pipe of an air-conditioning installation; wherein the pump assembly outlet is in fluid communication with a second fluid-carrying pipe of an air-conditioning installation.
the pump assembly includes a float switch arrangement adapted to cause actuation of the pump when a level of fluid within the reservoir exceeds a first predetermined level. More preferably, the float switch is adapted to cause actuation of an alarm when the level of fluid within the reservoir exceeds a second predetermined level, said second predetermined level being greater than the first predetermined level.
the float switch arrangement comprises a sensor housing projecting into the reservoir, housing at least one sensor, suitably of the Hall-effect semiconductor type, at a position defining said first predetermined level and a magnetic float free to move axially about the sensor housing.
the elbow further includes at least one channel for receipt, in use, of cables and/or further pipework.
a non-return valve is provided between the pump assembly inlet orientated at 90° to the pump assembly outlet.
the pump assembly inlet is orientated at 90° to the pump assembly outlet.
the elbow comprises a housing 11 having a first opening 12 and a second opening 13 defined between a base element 14 and a cover 15.
a pump assembly 20 mounted within the channel element 14 is a pump assembly 20.
the pump assembly has an inlet 21 and an outlet 22 orientated at 90° to the inlet 21.
Pump assembly 20 incorporates an electrically operated pump and is supplied by means of an electrical power supply 23.
the pump 20 also includes an alarm switch (not shown) which, by means of a cable 24, actuates an alarm and may be also switch off the air-conditioning unit in the event of pump failure.
elbow 10 is used in combination with additional conventional elongate conduit channel 30 and cover 31 elements connected at each opening 12,13.
the elbow is designed with a rectangular section to match the rectangular section of the conduit with which the elbow is being used. It will be appreciated that many designs of conduit with widely varying dimensions are available. The design of the elbow housing 11 will be adapted accordingly to match.
Figure 2 illustrates the elbow 10 of Figure 1 in a typical installation in which the inlet 21 of the pump assembly 20 is in operative connection with the tray 32 of an evaporator unit 33.
the elbow housing 11 further includes a channel to allow for the routing of additional cables, breather tubes and additional pipework 34.
channel 40 is formed by provision of a dividing wall 41 projecting from the rear wall of the base element 14, dividing a channel 40 from an area of the base element housing the pump assembly 20.
Pump assembly 20 includes a pump in a pump housing 51 and having a pump inlet 52 and a pump outlet 53.
Pump inlet 52 is in fluid communication with a reservoir 54 formed, in the embodiment shown, integrally with the pump assembly 20.
the reservoir has an inlet forming the pump assembly inlet 21.
the pump assembly 20 includes a float switch arrangement to cause actuation of the pump when the level of fluid within the reservoir reaches a certain level.
the float switch is adapted to trigger an alarm and/or prevent continued operation of the air conditioning system if the fluid level reaches a second, higher level, which may, for example, indicate a blockage in the system.
a typical float switch arrangement is illustrated in which a housing in the form of a sealed finger 55 depends from pump housing 51 into reservoir 54.
Mounted within finger 55 are three axially spaced sensors (not shown) each responsive to a magnetic field induced by a magnetic float 56 around finger 55 and constrained to move axially with respect thereto.
magnetic float 56 includes a disc-shaped magnet supported upon an foamed plastics float material, such as expanded polystyrene.
the sensors are of the Hall-effect semi conductor type.
the lowermost sensor acts, as the fluid level in the reservoir falls, to turn off the pump.
the intermediate sensor acts, as the fluid level begins to rise, to actuate the pump.
the uppermost sensor acts when the fluid level reaches a height indicating that the capacity of the pump is being reached, perhaps indicating a blockage in the air-conditioning pipework. Typically, this sensor will trigger actuation of an alarm
the pump is capable of pumping about 14 litres of water per hour at zero head.
the pump assembly and conduit elbow of the present invention offer a number of advantages over existing arrangements.
the conduit enables the pump assembly to be mounted such that the reservoir is horizontal in both left handed and right handed orientations.
a typical problem with existing arrangements arises when the pump is not active. Condensate in the pipework and the conventional reservoir in the evaporator, which tends to be some distance from the pump, tends to siphon through the pump, which is usually at an elevated position, to the drain. This leads to difficulties priming the pump upon restarting and even if pumping can be restarted, it is associated with considerable noise as a large amount of air is drawn through the pump.
the pump assembly by inclusion of an integral reservoir enables sufficient condensate to remain in the reservoir such that the pump inlet 52 remains covered, thereby avoiding difficulties and noise associated with priming of the pump. Additionally, a non-return valve can be incorporated between the pump inlet and pump outlet to prevent siphoning. Furthermore, the compact nature of the design of the pump assembly means that it can easily be accommodated within the elbow of air-conditioning conduit, whilst leaving sufficient room for other cabling and pipework.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Control Of Positive-Displacement Pumps (AREA)
Jet Pumps And Other Pumps (AREA)
Details Of Reciprocating Pumps (AREA)
Saccharide Compounds (AREA)
Air Conditioning Control Device (AREA)
Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Compressor (AREA)

EP04106143A 2001-12-04 2002-12-04 Verbesserungen an oder bei Pumpen Expired - Lifetime EP1510765B1 (de)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
SI200230690T SI1510765T1 (sl)	2001-12-04	2002-12-04	IzboljĹˇave na ali pri ÄŤrpalkah
CY20081100479T CY1107933T1 (el)	2001-12-04	2008-05-06	Βελτιωσεις σε αντλιες ή βελτιωσεις που σχετιζονται με αντλιες

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
GBGB0129096.4A GB0129096D0 (en)	2001-12-04	2001-12-04	Improvements in or relating to pumps
GB0129096		2001-12-04
GB0217378A GB2382843B (en)	2001-12-04	2002-07-26	Improvements in or relating to pumps
GB0217378		2002-07-26
EP02258380A EP1318361B1 (de)	2001-12-04	2002-12-04	Verbesserungen an oder bei Pumpen

Related Parent Applications (2)

Application Number	Title	Priority Date	Filing Date
EP02258380.1 Division		2002-12-04
EP02258380A Division EP1318361B1 (de)	2001-12-04	2002-12-04	Verbesserungen an oder bei Pumpen

Publications (3)

Publication Number	Publication Date
EP1510765A2 true EP1510765A2 (de)	2005-03-02
EP1510765A3 EP1510765A3 (de)	2005-08-31
EP1510765B1 EP1510765B1 (de)	2008-02-20

Family

ID=26246834

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP02258380A Expired - Lifetime EP1318361B1 (de)	2001-12-04	2002-12-04	Verbesserungen an oder bei Pumpen
EP04106143A Expired - Lifetime EP1510765B1 (de)	2001-12-04	2002-12-04	Verbesserungen an oder bei Pumpen

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
EP02258380A Expired - Lifetime EP1318361B1 (de)	2001-12-04	2002-12-04	Verbesserungen an oder bei Pumpen

Country Status (7)

Country	Link
EP (2)	EP1318361B1 (de)
AT (2)	ATE308725T1 (de)
CY (1)	CY1105323T1 (de)
DE (1)	DE60207033T2 (de)
DK (2)	DK1318361T3 (de)
ES (2)	ES2299799T3 (de)
SI (1)	SI1318361T1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8683821B2 (en)	2010-04-15	2014-04-01	Franklin Electric Company, Inc.	Sediment trap system and method
WO2020138706A1 (ko)	2018-12-24	2020-07-02	성신하스코 주식회사	배수펌프의 물통이 노출된 덕트

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0801063D0 (en) *	2008-01-21	2008-02-27	Charles Austen Pumps Ltd	Conduit for a condensate removal pump
WO2012012604A1 (en)	2010-07-21	2012-01-26	Itt Manufacturing Enterprises, Inc.	Pump designed for installation conversion
KR102091877B1 (ko) *	2019-09-09	2020-03-20	성신하스코 주식회사	배수펌프의 물통이 노출된 덕트
KR102046060B1 (ko) *	2018-12-24	2019-11-19	성신하스코 주식회사	배수펌프의 물통이 노출된 덕트
KR102046066B1 (ko) *	2019-01-30	2019-11-19	성신하스코 주식회사	배수펌프의 물통이 부분적으로 노출된 덕트
GB2630588A (en) *	2023-05-30	2024-12-04	Aspen Pumps Ltd	Condensate pump assembly
DE102023117175A1 (de)	2023-06-29	2025-01-02	Stiebel Eltron Gmbh & Co. Kg	Lüftergehäuse zum Einbau in ein Lüftungsgerät und Lüftungsgerät

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH02176327A (ja) *	1988-12-27	1990-07-09	Taisei Corp	空調機の凝縮水の処理方法
JPH08200726A (ja) *	1994-11-21	1996-08-06	Nikon Corp	空調機のドレン水の排水装置
JPH09112959A (ja) *	1995-10-20	1997-05-02	Tochigi Nikon:Kk	天吊り型空調機
JPH09203536A (ja) *	1995-11-20	1997-08-05	Mirai Ind Co Ltd	エアコン用冷媒管保護カバー
JPH10288384A (ja) *	1997-04-15	1998-10-27	Nikon Corp	空調機のドレン水排水装置及びドレン水排水装置を備えた空調システム
JPH11182420A (ja) *	1997-12-15	1999-07-06	You Can Kk	自動排液装置
JP2000266278A (ja) *	1999-03-11	2000-09-26	Mirai Ind Co Ltd	冷媒管およびドレン管の、保護カバー並びに仕切部材

2002
- 2002-12-04 AT AT02258380T patent/ATE308725T1/de active
- 2002-12-04 EP EP02258380A patent/EP1318361B1/de not_active Expired - Lifetime
- 2002-12-04 ES ES04106143T patent/ES2299799T3/es not_active Expired - Lifetime
- 2002-12-04 AT AT04106143T patent/ATE386911T1/de active
- 2002-12-04 DE DE60207033T patent/DE60207033T2/de not_active Expired - Lifetime
- 2002-12-04 DK DK02258380T patent/DK1318361T3/da active
- 2002-12-04 EP EP04106143A patent/EP1510765B1/de not_active Expired - Lifetime
- 2002-12-04 SI SI200230257T patent/SI1318361T1/sl unknown
- 2002-12-04 ES ES02258380T patent/ES2252399T3/es not_active Expired - Lifetime
- 2002-12-04 DK DK04106143T patent/DK1510765T3/da active
2006
- 2006-02-01 CY CY20061100131T patent/CY1105323T1/el unknown

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH02176327A (ja) *	1988-12-27	1990-07-09	Taisei Corp	空調機の凝縮水の処理方法
JPH08200726A (ja) *	1994-11-21	1996-08-06	Nikon Corp	空調機のドレン水の排水装置
JPH09112959A (ja) *	1995-10-20	1997-05-02	Tochigi Nikon:Kk	天吊り型空調機
JPH09203536A (ja) *	1995-11-20	1997-08-05	Mirai Ind Co Ltd	エアコン用冷媒管保護カバー
JPH10288384A (ja) *	1997-04-15	1998-10-27	Nikon Corp	空調機のドレン水排水装置及びドレン水排水装置を備えた空調システム
JPH11182420A (ja) *	1997-12-15	1999-07-06	You Can Kk	自動排液装置
JP2000266278A (ja) *	1999-03-11	2000-09-26	Mirai Ind Co Ltd	冷媒管およびドレン管の、保護カバー並びに仕切部材

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 447 (M-1029), 25 September 1990 (1990-09-25) -& JP 02 176327 A (TAISEI CORP), 9 July 1990 (1990-07-09) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12, 26 December 1996 (1996-12-26) -& JP 08 200726 A (NIKON CORP; TOCHIGI NIKON:KK), 6 August 1996 (1996-08-06) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09, 30 September 1997 (1997-09-30) -& JP 09 112959 A (TOCHIGI NIKON:KK;NIKON CORP), 2 May 1997 (1997-05-02) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 12, 25 December 1997 (1997-12-25) -& JP 09 203536 A (MIRAI IND CO LTD), 5 August 1997 (1997-08-05) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01, 29 January 1999 (1999-01-29) -& JP 10 288384 A (NIKON CORP;TOCHIGI NIKON:KK), 27 October 1998 (1998-10-27) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12, 29 October 1999 (1999-10-29) -& JP 11 182420 A (YOU CAN KK), 6 July 1999 (1999-07-06) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12, 3 January 2001 (2001-01-03) -& JP 2000 266278 A (MIRAI IND CO LTD), 26 September 2000 (2000-09-26) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8683821B2 (en)	2010-04-15	2014-04-01	Franklin Electric Company, Inc.	Sediment trap system and method
WO2020138706A1 (ko)	2018-12-24	2020-07-02	성신하스코 주식회사	배수펌프의 물통이 노출된 덕트
US11674715B2 (en)	2018-12-24	2023-06-13	Sungshin Hasco Limited	Duct exposing reservoir of drain pump

Also Published As

Publication number	Publication date
ES2299799T3 (es)	2008-06-01
EP1318361A1 (de)	2003-06-11
ATE308725T1 (de)	2005-11-15
DK1318361T3 (da)	2006-03-20
DK1510765T3 (da)	2008-06-02
EP1510765A3 (de)	2005-08-31
CY1105323T1 (el)	2010-03-03
EP1510765B1 (de)	2008-02-20
DE60207033D1 (de)	2005-12-08
DE60207033T2 (de)	2006-08-03
ATE386911T1 (de)	2008-03-15
SI1318361T1 (sl)	2006-06-30
EP1318361B1 (de)	2005-11-02
ES2252399T3 (es)	2006-05-16

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US6442955B1 (en)	2002-09-03	Condensate overflow safety switch
US6817194B1 (en)	2004-11-16	Pumps
US6322326B1 (en)	2001-11-27	Modular condensate pump assembly
EP1510765B1 (de)	2008-02-20	Verbesserungen an oder bei Pumpen
US7826725B2 (en)	2010-11-02	Water level sensor for steam humidifier
EP1913316A2 (de)	2008-04-23	Kondensatentfernungsvorrichtung und -verfahren
US5518371A (en)	1996-05-21	Automatic fluid pressure maintaining system from a well
US4919343A (en)	1990-04-24	Anti-flooding sewage grinder pump liquid level control system in separately mounted canister
US10260770B2 (en)	2019-04-16	Condensate collection device
US5069042A (en)	1991-12-03	Cleanable condensate trap
US20050050621A1 (en)	2005-03-10	Toilet ventilation system and method
GB2382843A (en)	2003-06-11	Pump assembly with integral reservoir for use in air conditioning systems
US4693091A (en)	1987-09-15	Condensate disposal system
US20050166613A1 (en)	2005-08-04	Drain pan overflow safety switch
US11320172B1 (en)	2022-05-03	Air conditioner shut-off system and method to prevent drainage overflow
US6552284B1 (en)	2003-04-22	Water pump low pressure cutoff switch
US20030201898A1 (en)	2003-10-30	Blockage detector with separate alarm and shut-off functions
WO2003006892A1 (en)	2003-01-23	Vacuum collection system
US6563064B2 (en)	2003-05-13	Fluid flow switch sensing device having a test button
JP5101333B2 (ja)	2012-12-19	空気調和機の室外ユニット
EP1910755A1 (de)	2008-04-16	Kondensatablaufschlauchanordnung für eine verdampfereinheit
US3571823A (en)	1971-03-23	Toilet ventilation system
KR200434652Y1 (ko)	2006-12-26	에어컨 배수 자동 펌프
US20090197519A1 (en)	2009-08-06	Radon vent fan system
JP2001330283A (ja)	2001-11-30	加湿器

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