FR2259637A1 - Indication of dirtiness of filter - implied from press. difference, with a restriction placed upstream of filter - Google Patents

Indication of dirtiness of filter - implied from press. difference, with a restriction placed upstream of filter

Info

Publication number
FR2259637A1
FR2259637A1 FR7503029A FR7503029A FR2259637A1 FR 2259637 A1 FR2259637 A1 FR 2259637A1 FR 7503029 A FR7503029 A FR 7503029A FR 7503029 A FR7503029 A FR 7503029A FR 2259637 A1 FR2259637 A1 FR 2259637A1
Authority
FR
France
Prior art keywords
filter
press
diaphragm
dirtiness
placed upstream
Prior art date
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
FR7503029A
Other languages
English (en)
Other versions
FR2259637B1 (fr
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.)
Ecolab Engineering GmbH
Original Assignee
Lang Apparatebau GmbH
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.)
Filing date
Publication date
Application filed by Lang Apparatebau GmbH filed Critical Lang Apparatebau GmbH
Publication of FR2259637A1 publication Critical patent/FR2259637A1/fr
Application granted granted Critical
Publication of FR2259637B1 publication Critical patent/FR2259637B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/04—Controlling the filtration
    • B01D37/046—Controlling the filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
FR7503029A 1974-01-31 1975-01-31 Indication of dirtiness of filter - implied from press. difference, with a restriction placed upstream of filter Granted FR2259637A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742404452 DE2404452C2 (de) 1974-01-31 1974-01-31 Anzeigegerät für den Verschmutzungsgrad eines Filters

Publications (2)

Publication Number Publication Date
FR2259637A1 true FR2259637A1 (en) 1975-08-29
FR2259637B1 FR2259637B1 (fr) 1977-04-15

Family

ID=5906108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503029A Granted FR2259637A1 (en) 1974-01-31 1975-01-31 Indication of dirtiness of filter - implied from press. difference, with a restriction placed upstream of filter

Country Status (3)

Country Link
AT (1) AT339342B (fr)
DE (1) DE2404452C2 (fr)
FR (1) FR2259637A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705734A1 (fr) * 1993-05-25 1994-12-02 Snecma Procédé et dispositif pour améliorer la sécurité des filtres à fluide.
FR2770788A1 (fr) * 1997-11-12 1999-05-14 Valeo Climatisation Dispositif de mesure du degre de colmatage d'un filtre d'une installation de ventilation, chauffage et/ou climatisation
WO2006079067A1 (fr) * 2005-01-21 2006-07-27 Engineered Products Co. Indicateur de restriction de flux de fluide
US7562579B2 (en) 2006-06-16 2009-07-21 Engineered Products Company Dial-type flow-restriction gauges

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515690A (en) * 1982-08-06 1985-05-07 Nissan Motor Company, Limited Fuel supply system for diesel engines
JPS6030990A (ja) * 1983-08-01 1985-02-16 Hitachi Ltd 異物除去装置の運転方法及び装置
US4818385A (en) * 1987-08-31 1989-04-04 Medley Iii Frank W Filter with high pressure indicator
DE3835672A1 (de) * 1988-10-20 1990-04-26 Bayerische Motoren Werke Ag Verfahren und vorrichtung zur ueberwachung des verschmutzungsgrades von filtern
DE4117422C1 (en) * 1991-05-28 1992-11-12 Willi Prof. Dr.-Ing. 7432 Bad Urach De Dettinger Monitoring contamination level of filter, partic. for hydraulic fluids - in which signal is produced which correlates with quotient of two pressure differences and evaluating device produces signal to change filter when quotient reaches given value
DE19506452A1 (de) * 1995-02-24 1996-08-29 Mann & Hummel Filter Anzeigevorrichtung zur Anzeige des Unterdrucks
SE9603612D0 (sv) * 1996-10-03 1996-10-03 Siemens Elema Ab Metod för funktionskontroll av filter
DE19716979A1 (de) * 1997-04-23 1998-10-29 Porsche Ag Kraftstoffördersystem für Fahrzeuge mit Filterüberwachung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776056A (en) * 1949-03-16 1957-01-01 Oilgear Co Apparatus for filtering liquid
US3325010A (en) * 1963-10-09 1967-06-13 Cleveland Technical Ct Inc Filter clogging indicator
FR1409910A (fr) * 1964-07-23 1965-09-03 Herfilco Indicateur de colmatage pour filtres
US3482696A (en) * 1967-04-03 1969-12-09 Gen Motors Corp Oil filter indicating system
DE2049172C3 (de) * 1970-10-07 1978-10-12 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Einrichtung für die Anzeige der Verstopfung eines Druckflüssigkeitsfilters
DE2123755C3 (de) * 1971-05-13 1979-10-11 Vereinigte Flugtechnische Werkefokker Gmbh, 2800 Bremen Anordnung zur Anzeige des Verschmutzungsgrades für Hydraulikfilter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705734A1 (fr) * 1993-05-25 1994-12-02 Snecma Procédé et dispositif pour améliorer la sécurité des filtres à fluide.
US5477731A (en) * 1993-05-25 1995-12-26 Societe Nationale D'etude Et De Construction De Moteurs D'aviation (S.N.E.C.M.A.). Method and apparatus for detecting a fouled fluid filter
FR2770788A1 (fr) * 1997-11-12 1999-05-14 Valeo Climatisation Dispositif de mesure du degre de colmatage d'un filtre d'une installation de ventilation, chauffage et/ou climatisation
WO2006079067A1 (fr) * 2005-01-21 2006-07-27 Engineered Products Co. Indicateur de restriction de flux de fluide
US7470360B2 (en) 2005-01-21 2008-12-30 Engineered Products Company Fluid flow restriction indicator
US7562579B2 (en) 2006-06-16 2009-07-21 Engineered Products Company Dial-type flow-restriction gauges
US7921720B2 (en) 2006-06-16 2011-04-12 Engineered Products Company Dial-type flow-restriction gauges

Also Published As

Publication number Publication date
AT339342B (de) 1977-10-10
ATA66375A (de) 1977-02-15
DE2404452A1 (de) 1975-08-07
FR2259637B1 (fr) 1977-04-15
DE2404452C2 (de) 1984-09-06

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse