GB1299861A - Improvements relating to fluid filters - Google Patents

Improvements relating to fluid filters

Info

Publication number
GB1299861A
GB1299861A GB2889/69A GB288969A GB1299861A GB 1299861 A GB1299861 A GB 1299861A GB 2889/69 A GB2889/69 A GB 2889/69A GB 288969 A GB288969 A GB 288969A GB 1299861 A GB1299861 A GB 1299861A
Authority
GB
United Kingdom
Prior art keywords
filter
valve
pass
valves
flow
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.)
Expired
Application number
GB2889/69A
Inventor
Anthony Frank Boot
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.)
Claverham Holdings Ltd
Original Assignee
Fairey Hydraulics 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.)
Filing date
Publication date
Application filed by Fairey Hydraulics Ltd filed Critical Fairey Hydraulics Ltd
Priority to GB2889/69A priority Critical patent/GB1299861A/en
Priority to FR7001528A priority patent/FR2028530A1/fr
Priority to DE19702001897 priority patent/DE2001897A1/en
Publication of GB1299861A publication Critical patent/GB1299861A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
    • 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
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic

Abstract

1299861 Valves FAIREY HYDRAULICS Ltd 13 Jan 1970 [17 Jan 1969] 2889/69 Heading F2V [Also in Division B1] An hydraulic or pneumatic system comprising a reversible pump (10) and motor (11) connected in a closed circuit (Fig. 1, not shown) has a filter 13 in each line, the filters having by-pass valves automatically opened on reversal of flow so that only the filter downstream of the pump and upstream of the motor filters, the other being bypassed to prevent accumulated solids being backwashed into the circuit. Fig. 2 shows a filter on forward flow, fluid passing inwards through the filter element then out through valve housing 15, through sleeve-like by-pass valve member 27 and past check valve disc 26. On flow reversal (Fig. 3, not shown), the pressure distribution allows valve disc 26 to descend under its spring 35 to close the end of valve sleeve 27, whereupon the pressure forces both valves down against spring 28 to expose by-pass apertures 33. End cap 22 of the filter housing completely encloses the valve housing 15 which screws into it at 21.
GB2889/69A 1969-01-17 1969-01-17 Improvements relating to fluid filters Expired GB1299861A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2889/69A GB1299861A (en) 1969-01-17 1969-01-17 Improvements relating to fluid filters
FR7001528A FR2028530A1 (en) 1969-01-17 1970-01-16
DE19702001897 DE2001897A1 (en) 1969-01-17 1970-01-16 Filter for fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2889/69A GB1299861A (en) 1969-01-17 1969-01-17 Improvements relating to fluid filters

Publications (1)

Publication Number Publication Date
GB1299861A true GB1299861A (en) 1972-12-13

Family

ID=9747927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2889/69A Expired GB1299861A (en) 1969-01-17 1969-01-17 Improvements relating to fluid filters

Country Status (3)

Country Link
DE (1) DE2001897A1 (en)
FR (1) FR2028530A1 (en)
GB (1) GB1299861A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009572A (en) * 1973-05-01 1977-03-01 Pall Corporation Hydrostat systems containing coaxial multidirectional flow control valves
AT386353B (en) * 1987-05-12 1988-08-10 Scheuch Alois Lufttech FILTERS, IN PARTICULAR HOSE FILTERS WITH PRESSURE RELEASE OPENINGS CLOSED BY Rupture Discs
GB2227953A (en) * 1989-01-13 1990-08-15 Gen Electric Fluid transfer device
US5382355A (en) * 1994-01-04 1995-01-17 Arlozynski; Daniel A. Engine coolant filter
US6224754B1 (en) * 1998-01-22 2001-05-01 Donaldson Company, Inc. Filter head and liquid filter assembly with valve arrangements
CN103148058A (en) * 2013-02-28 2013-06-12 中国矿业大学 Liquid-phase distribution self-cleaning device for emulsion liquid pumping plant
WO2017186789A1 (en) * 2016-04-29 2017-11-02 Poclain Hydraulics Industrie Filtration system for a hydraulic circuit comprising a bypass valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928201A (en) * 1974-08-08 1975-12-23 Caterpillar Tractor Co Filter mounting and bypass valve assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009572A (en) * 1973-05-01 1977-03-01 Pall Corporation Hydrostat systems containing coaxial multidirectional flow control valves
AT386353B (en) * 1987-05-12 1988-08-10 Scheuch Alois Lufttech FILTERS, IN PARTICULAR HOSE FILTERS WITH PRESSURE RELEASE OPENINGS CLOSED BY Rupture Discs
GB2227953A (en) * 1989-01-13 1990-08-15 Gen Electric Fluid transfer device
US5382355A (en) * 1994-01-04 1995-01-17 Arlozynski; Daniel A. Engine coolant filter
US6224754B1 (en) * 1998-01-22 2001-05-01 Donaldson Company, Inc. Filter head and liquid filter assembly with valve arrangements
CN103148058A (en) * 2013-02-28 2013-06-12 中国矿业大学 Liquid-phase distribution self-cleaning device for emulsion liquid pumping plant
CN103148058B (en) * 2013-02-28 2015-04-29 中国矿业大学 Liquid-phase distribution self-cleaning device for emulsion liquid pumping plant
WO2017186789A1 (en) * 2016-04-29 2017-11-02 Poclain Hydraulics Industrie Filtration system for a hydraulic circuit comprising a bypass valve
FR3050779A1 (en) * 2016-04-29 2017-11-03 Poclain Hydraulics Ind SYSTEM FOR FILTRATION OF A HYDRAULIC CIRCUIT COMPRISING A BYPASS VALVE

Also Published As

Publication number Publication date
DE2001897A1 (en) 1970-07-23
FR2028530A1 (en) 1970-10-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees