CA2157421A1 - Fluid filter with integrated pressure regulator - Google Patents

Fluid filter with integrated pressure regulator

Info

Publication number
CA2157421A1
CA2157421A1 CA002157421A CA2157421A CA2157421A1 CA 2157421 A1 CA2157421 A1 CA 2157421A1 CA 002157421 A CA002157421 A CA 002157421A CA 2157421 A CA2157421 A CA 2157421A CA 2157421 A1 CA2157421 A1 CA 2157421A1
Authority
CA
Canada
Prior art keywords
filter
filter according
housing
pressure regulator
fluid space
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.)
Abandoned
Application number
CA002157421A
Other languages
French (fr)
Inventor
Bruno Sommer
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.)
Mann and Hummel GmbH
Original Assignee
Filterwerk Mann and Hummel 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 Filterwerk Mann and Hummel GmbH filed Critical Filterwerk Mann and Hummel GmbH
Publication of CA2157421A1 publication Critical patent/CA2157421A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering 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
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147Bypass or safety valves
    • B01D35/1475Pressure relief valves or pressure control valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/04Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/08Construction of the casing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/10Safety devices, e.g. by-passes
    • B01D27/103Bypass or safety valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D27/00Cartridge filters of the throw-away type
    • B01D27/10Safety devices, e.g. by-passes
    • B01D27/108Flow control valves; Damping or calibrated passages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering 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
    • B01D35/005Filters specially adapted for use in internal-combustion engine lubrication or fuel systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering 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
    • B01D35/30Filter housing constructions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/34Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/46Filters structurally associated with pressure regulators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/12Pleated filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/16Valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/46Several filtrate discharge conduits each connected to one filter element or group of filter elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A filter comprising a housing with an inlet and an outlet, and a pressure regulator integrated in the filter housing. In one embodiment the filter comprises a housing, a filter member disposed in said housing defining an unfiltered fluid space and a filtered fluid space, an inlet into the housing communicating with the unfiltered fluid space, an outlet in the housing communicating with the filtered fluid space, and a pressure regulator integrated into the filter housing. Having the pressure regulator integrated in the filter housing among other things, reduces the number of total parts and improves handling during installation and removal.

Description

21574~1 , FLUID FILTER WITH INTEGRATED PRESSURE REGULATOR
Backqround of the Invention This invention relates to a filter comprising an inlet and an outlet.
Filters of this type are known, for example, as fuel filters in internal-combustion-engine-driven vehicles of any type. Pressure regulators in a special-steel construction which limit the pressure in the fuel pipe and are mounted between the filter and the engine are also known. On the one hand, this known arrangement of the filter and the pressure regulating valve requires many parts and, on the other hand, the costs for several parts have a disadvantageous effect on the overall cost situation.

It is possible to examine the individual elements as well as the manufacturing processes with respect to saving cost. However, this requires a lot of time, which will not necessarily improve the cost situation, and different structural units would also still exist.

Summary of the Invention It is therefore one ~pect f the present invention to improve a filter of the aforementioned type in such a manner that an inexpensive multi-purpose module is created which is easy to install and use.
2s This and other ~pec~ of the invention are achieved by providing a filter comprising a housing, a filter member disposed in said housing defining an unfiltered fluid space and a filtered fluid space, an inlet into the housing - - 2157d~1 communicating with the unfiltered fluid space, an outlet in the housing communicating with the filtered fluid space, and a pressure regulator integrated into the filter housing.
In accordance with the invention, a pressure regulator is integrated in the filter housing. This reduces the number of total parts and therefore also the cost. By creating only one part, the handling will also be significantly improved during installation and removal.
An advantageous further embodiment of the invention provides that a return flow passage is arranged behind the pressure regulator. If the fuel line pressure becomes excessively high, this return flow passage conducts excess quantities of fuel from the pressure regulator back to a supply tank.
Furthermore, the pressure regulator may advantageously be arranged on the clean side (i.e. the filtered fluid side) of the filter member or on the unclean side (i.e. the unfiltered fluid side).
In accordance with an advantageous further embodiment the pressure regulator comprises a restoring mechanism made of plastic and/or of metal. Furthermore, the filter housing may advantageously be made of plastic and/or of metal. The use of more plastic has advantages with respect to weight and cost. Also, the demands on the recycling systems are lower the more that the proportions of material components are the same.
In accordance with an advantageous further embodiment, the filter insert has end caps made of metal and/or paper and/or cardboard. The more the material components of the overall filter are the same, the more advantageous the material-related reprocessing after the operating life of the filter.

Brief Description of the Drawings The invention will be described in further detail with reference to representative preferred embodiments ~157~2~
.

illustrated in the accompanying drawings in which:
Figure 1 is a longitudinal sectional view of a fuel filter with a plastic housing and a pressure regulator arranged on the clean side of the filter member;
5Figure 2 is a longitudinal sectional view of a fuel filter with a metal housing and a filter member having a self-supporting construction;
Figure 3 is a longitudinal sectional view of a fuel filter with a metal housing and a filter member supported by a support tube; and Figure 4 is a longitudinal sectional view of a fuel filter with a pressure regulator arrangement on the unclean side of the filter member.

Detailed Description of Preferred Embodiments The invention will be described hereinafter with respect to examples of fuel filters for an internal combustion engine. It should be understood, however, that the invention is not limited to fuel filters, but is applicable as well to other types of filters.
In each of the illustrated embodiments, the fuel filter comprises a housing 1 with an inlet 2 and an outlet 3. A
pressure regulator 4 is integrated in the filter housing.
The pressure regulator comprises a resilient restoring mechanism, such as a coil spring made of metal or plastic.
Alternatively, the restoring mechanism may comprise a plate spring or a compressible rubber block. At excessively high pressures, the pressure regulator 4 acts as a bypass and conducts excess quantities of fuel back into the supply tank by way of a return flow passage 5.
Figure 1 illustra'tes a filter with a housing 1 made of plastic. In the interior of the housing, a filter insert 6 is situated which consists of paper folded in a star shape.
Alternatively, the filter insert may be constructed as a web comprising a plurality of mechanically, adhesively or cohesively reinforced textile fiber layers. The filter ~1~i7421 insert divides the interior of the housing into an unfiltered fluid space and a filtered fluid space. In this embodiment, the pressure regulator 4 is arranged on the clean side of the filter member 6 (i.e. in communication with the filtered fluid space inside the filter housing).
The end caps 7 of the filter insert may consist of metal or, if the filter housing 1 is constructed of plastic (i.e.
synthetic resin), may be formed of paper and/or cardboard and contain no metal. In Figure 1, a support tube 8 is disposed inside the filter insert 6 for increasing its stability.
Figure 2 depicts a variant with a metal housing in which the pressure regulator 4 again is mounted on the clean side. The filter insert is constructed in a self-supporting manner, and no support tube is required.
Figure 3 shows an embodiment with a metal housing in which the pressure regulator 4 is again mounted on the filtered fluid side of the filter member 6. This embodiment differs from the embodiment of Figure 2 in that a support tube 8 is provided inside filter insert 6 to assist in preventing the filter insert from shifting or collapsing under pressure.
Figure 4 illustrates a variant in which the pressure regulator 4 is mounted on the unclean side; or in other words, in communication with the unfiltered fluid space of the filter housing 1. This arrangement is particularly advantageous to prevent rupture of the filter housing 1 if the filter member 6 becomes fouled or clogged.
The foregoing description and examples have been set forth merely to illustrate the invention and are not intended to be limiting. Since modifications of the described embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed broadly to include all variations falling within the scope of the appended claims and equivalents thereof.

Claims (17)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A filter comprising a housing, a filter member disposed in said housing defining an unfiltered fluid space and a filtered fluid space, an inlet into the housing communicating with the unfiltered fluid space, an outlet in the housing communicating with the filtered fluid space, and a pressure regulator integrated into the filter housing.
2. A filter according to claim 1, further comprising a return passage leading from the pressure regulator back to a supply tank.
3. A filter according to claim 1, wherein the pressure regulator is arranged in communication with the unfiltered fluid space.
4. A filter according to claim 1, wherein the pressure regulator is arranged in communication with the filtered fluid space.
5. A filter according to claim 1, wherein the pressure regulator comprises a resilient restoring mechanism.
6. A filter according to claim 5, wherein said restoring mechanism is manufactured of at least one material selected from the group consisting of plastic and metal.
7. A filter according to claim 1, wherein the housing is constructed of metal.
8. A filter according to claim 1, wherein the housing is constructed of a synthetic resin.
9. A filter according to claim 1, wherein the filter member comprises paper or a web comprising a plurality of mechanically, adhesively or cohesively reinforced textile fiber layers.
10. A filter according to claim 9, wherein the filter member is folded.
11. A filter according to claim 9, wherein the filter member further comprises end caps formed of a material selected from the group consisting of metal, paper and cardboard.
12. A filter according to claim 11, wherein the filter member has a self-supporting construction.
13. A filter according to claim 1, further comprising a support tube for the filter member.
14. A filter according to claim 5, wherein said restoring mechanism comprises a coil spring.
15. A filter according to claim 5, wherein said restoring mechanism comprises a plate spring.
16. A filter according to claim 5, wherein said restoring mechanism comprises a compressible rubber block.
17. A filter according to claim 1, wherein said filter is a fuel filter for an internal combustion engine.
CA002157421A 1994-09-06 1995-09-01 Fluid filter with integrated pressure regulator Abandoned CA2157421A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9414297U DE9414297U1 (en) 1994-09-06 1994-09-06 filter
DEG9414297.1 1994-09-06

Publications (1)

Publication Number Publication Date
CA2157421A1 true CA2157421A1 (en) 1996-03-07

Family

ID=6913247

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002157421A Abandoned CA2157421A1 (en) 1994-09-06 1995-09-01 Fluid filter with integrated pressure regulator

Country Status (8)

Country Link
EP (1) EP0701059A2 (en)
JP (1) JPH0874710A (en)
KR (1) KR960010044A (en)
BR (1) BR9504622A (en)
CA (1) CA2157421A1 (en)
CZ (1) CZ227695A3 (en)
DE (1) DE9414297U1 (en)
ZA (1) ZA956649B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989413A (en) * 1995-06-29 1999-11-23 Daimlerchrysler Ag Fuel filter with an integrated pressure regulating valve
US7708147B2 (en) 2004-11-15 2010-05-04 Purolator Filters Na Llc Fluid filter assembly with notched case

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430471A1 (en) * 1994-08-27 1996-02-29 Bosch Gmbh Robert Liquid filter with built-in pressure regulator
DE19536084A1 (en) * 1995-09-28 1997-04-03 Bosch Gmbh Robert Liquid filter with built-in pressure regulator
DE19736846A1 (en) * 1997-08-23 1999-03-04 Mannesmann Vdo Ag Pressure control arrangement
DE19737192A1 (en) * 1997-08-27 1999-03-04 Bosch Gmbh Robert Liquid filter for cleaning fuel
DE19840451A1 (en) * 1997-11-05 1999-05-20 Ford Motor Co Fuel supply system for an internal combustion engine
DE19754243A1 (en) * 1997-12-06 1999-06-10 Bosch Gmbh Robert Liquid filter with built-in pressure regulator
FR2786224B1 (en) * 1998-11-24 2001-12-07 Marwal Systems IMPROVED FILTERING MEANS FOR FUEL PUMP ASSEMBLY
DE19935504A1 (en) * 1999-07-28 2001-02-01 Mann & Hummel Filter Filter arrangement used as fuel filter contains pot, cylindrical filter insert supported on pot and containing filter medium, and housing closure
DE19960203A1 (en) * 1999-12-14 2001-06-28 Mann & Hummel Filter Oil filter, for IC motor, has non-return valve at inlet with direct connection to bypass valve
DE102006034943A1 (en) 2006-07-28 2008-01-31 Hydac Filtertechnik Gmbh Filter system for fluids
ATE531928T1 (en) * 2006-11-16 2011-11-15 Fiat Ricerche FUEL ADJUSTMENT AND FUEL FILTER DEVICE FOR A HIGH PRESSURE PUMP
EP2134440B1 (en) 2007-03-29 2011-05-18 Honda Motor Co., Ltd. Vehicle fuel supply device and fuel filter structure
EP1985839B1 (en) * 2007-04-24 2017-02-22 Delphi Technologies, Inc. Fuel Filter and Fuel Filter Housing
DE102009013070A1 (en) * 2009-03-13 2010-09-23 Hydac Filtertechnik Gmbh Filter device, in particular return-suction filter, and filter element for use in such a filter device
DE102015222416A1 (en) * 2015-11-13 2017-05-18 Mahle International Gmbh Spin-on replaceable filter for liquids

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707051A (en) * 1952-11-03 1955-04-26 Harold J Mailhot Pressure regulator-filter device
US4011848A (en) * 1975-08-15 1977-03-15 Chrysler Corporation Fuel filter and roll-over valve
DE3422979A1 (en) * 1984-06-22 1986-01-02 Robert Bosch Gmbh, 7000 Stuttgart FILTER FOR DIESEL FUEL
FR2580190B1 (en) * 1985-04-10 1988-11-25 Peugeot FUEL FILTER AND FUEL SUPPLY CIRCUIT PROVIDED WITH SUCH A FILTER
FR2618490A1 (en) * 1987-07-22 1989-01-27 Rivapompe Sa DEVICE FOR FILTERING AND DEGASSING A SUPPLY FUEL FOR INTERNAL COMBUSTION ENGINE
US5078167A (en) * 1990-12-18 1992-01-07 Parr Manufacturing, Inc. Fuel filter and pressure regulator system apparatus
DE4242242C2 (en) * 1992-12-15 2003-04-30 Bosch Gmbh Robert Device for supplying the internal combustion engine of a motor vehicle with fuel present in a storage tank
DE4430852A1 (en) * 1994-08-31 1995-04-27 Knecht Filterwerke Gmbh Pressure regulating valve for the fuel to be injected into the combustion chambers of an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989413A (en) * 1995-06-29 1999-11-23 Daimlerchrysler Ag Fuel filter with an integrated pressure regulating valve
US7708147B2 (en) 2004-11-15 2010-05-04 Purolator Filters Na Llc Fluid filter assembly with notched case

Also Published As

Publication number Publication date
BR9504622A (en) 1996-10-08
EP0701059A3 (en) 1996-04-10
KR960010044A (en) 1996-04-20
ZA956649B (en) 1996-03-19
JPH0874710A (en) 1996-03-19
EP0701059A2 (en) 1996-03-13
DE9414297U1 (en) 1994-10-27
CZ227695A3 (en) 1996-05-15

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