EP1233184A2 - Pompe à piston filtrant - Google Patents

Pompe à piston filtrant Download PDF

Info

Publication number: EP1233184A2
Authority: EP; European Patent Office
Prior art keywords: piston; outlet valve; filter; fluid; pump
Prior art date: 2001-02-14
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

EP02405064A

Other languages

German (de)

English (en)

Other versions

EP1233184A3 (fr

EP1233184B1 (fr

Inventor

Rory Britz

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.)

Hilti AG

Original Assignee

Hilti AG

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.)

2001-02-14

Filing date

2002-02-01

Publication date

2002-08-21

2002-02-01 Application filed by Hilti AG filed Critical Hilti AG

2002-08-21 Publication of EP1233184A2 publication Critical patent/EP1233184A2/fr

2003-12-17 Publication of EP1233184A3 publication Critical patent/EP1233184A3/fr

2005-02-16 Application granted granted Critical

2005-02-16 Publication of EP1233184B1 publication Critical patent/EP1233184B1/fr

2022-02-01 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
- F04B53/127—Disc valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/20—Filtering

Definitions

the invention relates to a preferably designed as a drilling water pump Piston pump with a reciprocating piston in a cylinder and one integrated filter piston.
Pseudo-continuous piston pumps take over in a first work cycle resiliently biased inlet valve a fluid in a pump chamber to this finally compress in a second cycle and via an outlet valve issue.
Drilling water pumps take drilling water heavily mixed with solids at low Pressure on and provide both filtered drilling water and separate outputs at Solids concentrated drilling water available at higher pressures.
By the strong solid content in the drilling water is a regular backwashing of the filter required to avoid permanent clogging.
a piston pump includes one for cleaning the fluid executed filter, which is immovably fixed in the cylinder. A backwash of the filter is not possible.
a multi-cascaded, reciprocating piston is one Piston pump designed as a filter piston made of porous metal, which compresses at the same time and cleans. Such a construction is unsuitable for heavily contaminated fluids. Of further backwashing of the filter is not possible.
the object of the invention is to implement a filtering piston pump for strong fluids containing solids.
the piston pump essentially has one, in a cylinder one self-closing inlet valve to a pump room, sealing back and forth piston moved a resiliently biased, axially limited sealing moving upstream filter piston, which with the piston an independent closes outlet valve.
the piston increases the axial movement Pump chamber, which creates a vacuum when the outlet valve is closed, which the Fluid containing solids enters the pump chamber via the inlet valve that is opened can flow in.
its axial movement reduces its size the pump chamber and the fluid mixed with solids is compressed, whereby the upstream filter piston is moved towards the piston against the preload and that Exhaust valve opens, which is filtered by the filter piston and by the piston compressed compressed fluid can flow out. That collects in the pump room Solids concentrated fluid.
the pump function is also used in a small space combined with a filter function.
the piston pump advantageously has an automatically closing concentrate outlet valve to the pump room, which occurs when the filter is clogged Overpressure in the pump room which releases fluid concentrated with solids. So with the piston pump also heavily mixed with solids and with respect to the Fluctuating fluids can be cleaned.
the self-closing outlet valve is also advantageously end-controlled closing, whereby axially at a shortly before the bottom dead center of the Her movement Cylinder-striking filter piston closed the exhaust valve, a backflow of the cleaned fluid caused by the filter piston in the pump chamber and thus in the pump chamber an overpressure is built up, which in a third cycle that with solids Concentrated fluid discharges through the concentrate outlet valve. So the piston pump quasi-continuous self-cleaning.
the outlet valve which closes at the end and is closed, is advantageous Exhaust valve spring biased over a tie rod, making it structurally simple can be produced.
the pump chamber 4 is reduced in size during the forth movement and that with solids offset fluid 9 is compressed, whereby the upstream filter piston 7 against the Bias of the axially biasing filter springs 6 is moved towards the piston 5 and the outlet valve 8 opens, which is filtered by the filter piston 7 and by the Piston 5 compressed compressed fluid 9 can flow out. This collects in the pump room 4 fluid 9 concentrated with solids.
the piston pump 1 has an automatically closing Concentrate outlet valve 10 to the pump chamber 4, which in the event of an overpressure Pump chamber 4 which releases fluid 9 concentrated with solids. That independently Closing outlet valve 8 is end-controlled closing with a Exhaust valve spring 11 biased via a tie rod 12, which at a short before Bottom dead center of the forth movement arranged axial stop 13 of the filter piston 7 Exhaust valve 8 closes and thus a backflow of the cleaned fluid 9 through the Filter piston 7 forces into the pump chamber 4, causing an overpressure in the pump chamber 4 is built up, which is concentrated with the solids fluid 9 via the Concentrate outlet valve 10 leaves.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Reciprocating Pumps (AREA)
Details Of Reciprocating Pumps (AREA)

EP02405064A 2001-02-14 2002-02-01 Pompe à piston filtrant Expired - Lifetime EP1233184B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE10106758A DE10106758A1 (de)	2001-02-14	2001-02-14	Kolbenpumpe mit Filterpumpe
DE10106758		2001-02-14

Publications (3)

Publication Number	Publication Date
EP1233184A2 true EP1233184A2 (fr)	2002-08-21
EP1233184A3 EP1233184A3 (fr)	2003-12-17
EP1233184B1 EP1233184B1 (fr)	2005-02-16

Family

ID=7673963

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP02405064A Expired - Lifetime EP1233184B1 (fr)	2001-02-14	2002-02-01	Pompe à piston filtrant

Country Status (3)

Country	Link
US (1)	US6634869B2 (fr)
EP (1)	EP1233184B1 (fr)
DE (2)	DE10106758A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
RU2008116677A (ru) *	2005-09-28	2009-11-10	Конинклейке Филипс Электроникс Н.В. (Nl)	Управляемое вручную устройство для очистки воды
TWI308615B (en) *	2006-06-20	2009-04-11	Ind Tech Res Inst	Micro-pump and micro-pump system
US8657588B2 (en) *	2006-11-08	2014-02-25	Us Airflow	Compression apparatus
US8281937B2 (en) *	2007-02-16	2012-10-09	Nephros, Inc.	Compact fluid purification device with manual pumping mechanism
NL1037070C2 (nl) *	2009-06-24	2010-12-27	Holland Novochem B V	Multifunctionele scheidingspomp met daarin opgesteld absorbens.
US8313644B2 (en) *	2010-01-13	2012-11-20	OZOlab	Bottle with an integrated filtration assembly that is manually operated using a plunger
US9333447B2 (en) *	2012-10-19	2016-05-10	Warsaw Orthopedic, Inc.	Filtration device
US12128334B2 (en) *	2018-09-05	2024-10-29	Kin Mun Chin	Filter press with threadably advanced filtrate receiving plunger
MY195849A (en) *	2018-09-05	2023-02-23	Kin Mun Chin	Device for Filtering
CN116792284B (zh) *	2023-06-20	2026-02-27	珠海格力电器股份有限公司	活塞组件及压缩机
CN117052881A (zh) *	2023-08-31	2023-11-14	苏州市职业大学（苏州开放大学）	一种集成式减速器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE673894C (de) *	1935-02-22	1939-04-01	Alfred Achilles	Transportables Trinkwasserfilter
GB1346940A (en) *	1972-10-31	1974-02-13	Skinner E A	Pump
US4718893A (en) *	1986-02-03	1988-01-12	University Of Minnesota	Pressure regulated implantable infusion pump
US4961846A (en) *	1989-06-21	1990-10-09	Allied-Signal Inc.	Collapsible filter for a fluid power apparatus
US5797452A (en) *	1996-12-12	1998-08-25	Martin; John Kaal	Double-acting, deep-well fluid extraction pump
DE19925250A1 (de) *	1999-06-01	2000-12-07	Continental Teves Ag & Co Ohg	Kolbenpumpe

2001
- 2001-02-14 DE DE10106758A patent/DE10106758A1/de not_active Withdrawn
2002
- 2002-02-01 EP EP02405064A patent/EP1233184B1/fr not_active Expired - Lifetime
- 2002-02-01 DE DE50202256T patent/DE50202256D1/de not_active Expired - Fee Related
- 2002-02-13 US US10/075,497 patent/US6634869B2/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US20020110464A1 (en)	2002-08-15
EP1233184A3 (fr)	2003-12-17
DE50202256D1 (de)	2005-03-24
EP1233184B1 (fr)	2005-02-16
US6634869B2 (en)	2003-10-21
DE10106758A1 (de)	2002-08-29

Legal Events

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2002-07-05	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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2004-07-27	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2004-08-18	17P	Request for examination filed	Effective date: 20040617
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