GB2238374A - A valve housing - Google Patents

A valve housing Download PDF

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Publication number
GB2238374A
GB2238374A GB9021561A GB9021561A GB2238374A GB 2238374 A GB2238374 A GB 2238374A GB 9021561 A GB9021561 A GB 9021561A GB 9021561 A GB9021561 A GB 9021561A GB 2238374 A GB2238374 A GB 2238374A
Authority
GB
United Kingdom
Prior art keywords
valve housing
valve
radial ports
sieve filter
sleeve
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.)
Withdrawn
Application number
GB9021561A
Other versions
GB9021561D0 (en
Inventor
Aydogan Cakmaz
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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.)
Filing date
Publication date
Application filed by Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Publication of GB9021561D0 publication Critical patent/GB9021561D0/en
Publication of GB2238374A publication Critical patent/GB2238374A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • 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
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/04Check valves with guided rigid valve members shaped as balls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Check Valves (AREA)
  • Valve Housings (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The valve body of a valve housing 12 for electromagnetically actuated valves which can be inserted into a control block is equipped on the circumference with a plurality of radial ports 36, 40, 44, 48. To ensure that particles contained in the medium to be controlled cannot impair the valve functioning, the medium is filtered. For this purpose, a sleeve-shaped sieve filter 58 is introduced into an injection mould prior to the moulding of the valve body 12 which consists of plastic. The sieve filter 58 preferably consists of a fabric consisting of plastic, especially polyester, with a filter fineness of 60 microns. <IMAGE>

Description

2! 2!;2 a ----R 77 cl- 1 A Valve Housing The invention relates to a valve
housing, insertable in a sealed off manner into a bore, receives a valve formed by at least one valve seat and a controllable valve member, has radial ports and a sleeve-shaped sieve filter provided between the valve and the radial ports.
A valve housing of this type is the subject of German Offenlegungsschrift 3,130,581. The sleeve-shaped sieve filter arranged in this between the valve and the radial ports is held with its end faces in plastic rings which bear in a sealed-off manner against the inner circumference of the housing body in the form of a shell and which are secured axially in this.
The sieve filter thus forms a valve-housing insert which consists altogether of three parts and which involves a correspondingly high outlay in production terms and has to be mounted in a special way or sealingly.
The present invention seeks, therefore, to improve a valve housing in such a way that there is no need for a production and assembly of the sieve-shaped sieve filter which involve a high outlay.
According to the invention, there is provided a valve housing, insertable in a sealed off manner into a bore, receives a valve formed by at least one valve seat and a controllable valve member, has radial ports and a sleeveshaped sieve filter provided between the valve and the radial ports, wherein the sleeve-shaped sieve filter is injection-moulded into the valve housing which comprises a plastics material.
The invention accordingly achieves this with a onepart sieve filter which simply has to be produced from a fabric blank before the injectionmoulding of the valve housing and introduced into the injection mould and thus, after the production of the valve housing, is integral t 2 with the latter.
Inasmuch as this valve housing is for electromechanically actuated valves, and has radial ports in front of or behind a valve seat, as seen in the direction of flow, a favourable construction is obtained if radial ports located on at least two circumferential lines pass through the valve housing, and the sieve filter extends at least over the axial region of the valve housing having these radial ports.
Preferably, the sleeve-shaped sieve filter is formed from a fabric consisting of a plastics material, preferably polyester filaments, which is insensitive to the temperatures occurring during the injectionmoulding of the valve housing.
Likewise advantageously, a sieve filter can also be used in a design as a wire fabric which is intrinsically dimensionally stable and which is correspondingly easy to handle in production terms.
An embodiment of the invention will now be described by way of example with reference to the drawing, in which: Figure 1 shows a valve housing of an electromagnetically actuable valve in longitudinal section along the line I-I of Figure 2. shows a cross-section of the valve housing, as seen along the line II-II of Figure 1, and Figure 3 shows a cross-section of the valve housing, as seen along the line III-III of Figure 1.
The drawing shows a valve housing 12 of an electromagnetically actuable valve which can be inserted sealed off into the housing of a control block not shown in detail. It is injection-moulded from plastic and is equipped on one end face with a fastening flange 14 having a central orifice 13. A housing insert 16 is inserted into its other end face.
Two valve seats 18 and 20 are arranged within the Figure; z r 11 . 1 1 3 valve housing 12 coaxially and at a distance from one another and are assigned a common spherical valve member 22.
The valve seat 18 is provided on an intermediate wall 26 which subdivides the valve housing 12 into two housing portions located axially in succession and through which a central orifice 24 passes, whilst the other valve seat 20 is arranged at the inner end of the housing insert 16 through which a central orifice 28 passes. A pressure feed P into the valve housing 12 takes place via the orifice 28.
The spherical valve member 22 is guided displaceably in the axial direction of the valve housing 12 in a radially permeable guide 30 formed, for example, onto the inner end of the housing insert 16 and can consequently be laid alternately down onto one of the two valve seats 18 or 20. The laying down onto the valve seat 18 is brought about by means of a medium, especially hydraulic fluid, conveyed to the orifice 28 by means of a pump, whilst the laying down onto the valve seat 20 is obtained by means of a valve tappet 32 which is represented by dot-and- dash lines, passes sealed off through a partition wall (not shown) receiving the fastening flange 14, is controllable by means of an electromagnet (not shown) and engages through the orifice 24 of the intermediate wall 26.
Radial ports 34, 36, 38 and 40, continued in the control block, are assigned, on the circumference of the valve housing 12, to the orifice 24 located in the intermediate wall 26 and forming a relief channel.
The orifice 28 provided in the housing insert 16 is assigned, on the circumference of the valve housing 12, radial ports 42, 44, 46 and 48, from which extend, in the control block, channels connected to follow-up elements, for example piston slides, to be controlled.
As shown in the drawing, the two groups of radial ports 34 to 40 and 42 to 48 are each located on a CI 4 circumferential line of the valve housing 12 and are each assigned to one of the two valve-housing portions formed by the partition wall 26.
To prevent impurities, for example fine flakes or dirt, present in the medium, for example hydraulic fluid, from floating via the valve into the elements to be controlled or into the valve housing 12, the axial and radial inlets and outlets are each equipped with a filter element.
The orifice 28 of the housing insert 16 opening into the valve seat.20 is preceded by an annular filter 50, the disc-shaped filter sieve 52 of which is injectionmoulded at the edge into a cylindrical plastic ring 54 inserted sealed off into an end orifice 56 which is located in the valve housing 12 and which also receives the housing insert 16.
The two groups of radial ports 34 to 40 and 42 to 48 are assigned a common sleeve-shaped sieve filter 58 which is preferably produced from a polyester fabric 60 with a filter fineness of especially 60 microns.
To form the two groups of radial ports 34 to 40 and 42 to 48, the valve housing 16 has shell portions 62, 64 and 66 provided at an axial distance from one another and connected to one another via radial webs 68, 70, 72 and 74. The radial webs are arranged at an angular distance from one another and are made both radially larger and, in the circumferential direction of the valve housing 12, narrower between the shell portions 62 and 64 than the remaining ones. The shell portions 62, 64 and 66 are each equipped with a circumferential groove 76 for receiving a sealing ring, the fastening flange 14 being formed on the shell portion 62.
The sleeve-shaped sieve filter 58 is injectionmoulded into the valve housing 12 in such a way that it passes both through the intermediate wall 26 and the radial webs 68 to 74. Moreover, it is injection-moulded firmly onto the inner circumference of shell portions 62 1 t 1 and 6 6.
After the conclusion of the injection-moulding operation for producing the valve housing 12, this is equipped at the same time with the sieve filter 58. Moreover, the valve housing 12 is characterized by a low dead weight as a result of the choice of material and especially also as a result of the special design of the radial ports 34 to 78.
C_.
6

Claims (6)

Claims
1. A valve housing, insertable in a sealed off manner into a bore, receives a valve formed by at least one valve seat and a controllable valve member, has radial ports and a sleeve-shaped sieve filter provided between the valve and the radial ports, wherein the sleeve-shaped sieve filter is injection-moulded into the valve housing which comprises a plastics material.
2. A valve housing according to Claim 1, wherein radial ports located on at least two circumferential lines pass through the valve housing, and the sieve filter extends at least over the axial region of the valve housing having these radial ports.
3. A valve housing according to Claim 1 or 2, wherein the sleeve-shaped sieve filter is formed from a fabric consisting of a plastics material.
4. A valve housing according to claim 3 wherein the filter is formed of polyester.
5. A valve housing, insertable in a sealed off manner into a bore, substantially as described herein, with reference to, and as illustrated in, the accompanying drawings.
published 1991 at The Patent Office. State House. 66/71 High Holbom. LA)ndonWClR47?. Further copies Tnay be obtained from Sales Branch. Unit
6. Nine Mile Point. Cwmifelinfach. Cross Keys. New?art. NPI 7HZ. Printed by Multiplex techniques lid. St Mary Cray, Kent.
GB9021561A 1989-10-19 1990-10-04 A valve housing Withdrawn GB2238374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3934806A DE3934806C1 (en) 1989-10-19 1989-10-19

Publications (2)

Publication Number Publication Date
GB9021561D0 GB9021561D0 (en) 1990-11-21
GB2238374A true GB2238374A (en) 1991-05-29

Family

ID=6391739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9021561A Withdrawn GB2238374A (en) 1989-10-19 1990-10-04 A valve housing

Country Status (4)

Country Link
DE (1) DE3934806C1 (en)
FR (1) FR2653521A1 (en)
GB (1) GB2238374A (en)
IT (1) IT1242079B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497685B1 (en) 2000-03-24 2002-12-24 Baxter International Inc. Integral intravenous chamber and filter
CN103133732A (en) * 2011-11-25 2013-06-05 罗伯特·博世有限公司 Hydraulic controlled storage chamber valve

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037952A1 (en) * 1990-11-29 1992-06-04 Bosch Gmbh Robert METHOD FOR MOUNTING A FILTER ON A VALVE AND VALVE
DE4328709C2 (en) * 1993-08-26 1996-04-04 Bosch Gmbh Robert Solenoid valve
DE4414583A1 (en) * 1994-04-27 1995-11-02 Teves Gmbh Alfred Valve
DE102007060208A1 (en) 2007-12-14 2009-06-18 Robert Bosch Gmbh Hydrostatic machine with a filter having a tubular jacket wall

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB741918A (en) * 1951-11-19
GB938518A (en) * 1961-01-03 1963-10-02 Rene Jaume Improvements in or relating to tubular filter elements
GB1379069A (en) * 1971-09-29 1975-01-02 Scovill Manufacturing Co Process for making self-supporting filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130581A1 (en) * 1981-08-01 1983-02-17 Robert Bosch Gmbh, 7000 Stuttgart Multi-position valve subassembly
US4821770A (en) * 1987-12-28 1989-04-18 General Motors Corporation Solenoid valve assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB741918A (en) * 1951-11-19
GB938518A (en) * 1961-01-03 1963-10-02 Rene Jaume Improvements in or relating to tubular filter elements
GB1379069A (en) * 1971-09-29 1975-01-02 Scovill Manufacturing Co Process for making self-supporting filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497685B1 (en) 2000-03-24 2002-12-24 Baxter International Inc. Integral intravenous chamber and filter
CN103133732A (en) * 2011-11-25 2013-06-05 罗伯特·博世有限公司 Hydraulic controlled storage chamber valve

Also Published As

Publication number Publication date
IT9048372A1 (en) 1992-04-16
GB9021561D0 (en) 1990-11-21
FR2653521A1 (en) 1991-04-26
IT1242079B (en) 1994-02-08
DE3934806C1 (en) 1991-06-06
IT9048372A0 (en) 1990-10-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)