US3665963A - Magnetic valve - Google Patents

Magnetic valve Download PDF

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Publication number
US3665963A
US3665963A US10761A US3665963DA US3665963A US 3665963 A US3665963 A US 3665963A US 10761 A US10761 A US 10761A US 3665963D A US3665963D A US 3665963DA US 3665963 A US3665963 A US 3665963A
Authority
US
United States
Prior art keywords
valve spool
piston valve
cylindrical
bore
magnetic
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 - Lifetime
Application number
US10761A
Other languages
English (en)
Inventor
Heinrich Dick
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.)
Voith Getriebe KG
Original Assignee
Voith Getriebe KG
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 Voith Getriebe KG filed Critical Voith Getriebe KG
Application granted granted Critical
Publication of US3665963A publication Critical patent/US3665963A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0613—Sliding valves with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/24—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an electromagnetically-operated valve, e.g. for washing machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86879—Reciprocating valve unit

Definitions

  • the present invention relates to a magnetic valve with a coil arranged within an iron mantle or casing for producing a magnetic flux in said casing, and with a magnetic core which is axially movable in the interior of the coil and is adapted by said magnetic flux to be displaced from a rest position into a working position.
  • the present invention concerns a magnetic valve of the type mentioned above which is provided with a valve housing associated with said iron casing and provided with a bore extending in'the direction of the magnetic corefor the valve spool and is furthermore provided with a valve spool movably arranged in said bore and associated with the magnetic core.
  • the magnetic valve according to the present invention is characterized primarily in that the valve housing consists together with the iron casing of a magnetically homogeneous piece while the magnetic core with the valve spool consists of a single piece of magnetic material.
  • the magnetic valve according to the invention is furthermore characterized in that the iron casing and the valve housing with the bore for the valve spool on one hand and the magnetic core and valve spool on the other hand are designed in such a manner that, when the magnetic core is attracted into its working position, the magnetic flux is guided from the iron casing and the valve housing into the valve spool and the magnetic core while passing through the cylindrical gap between the bore for the valve spool and the valve spool.
  • the magnetic valve becomes particularly simple.
  • the iron casing and the valve housing on one hand and the valve spool and magnetic core on the other hand may be designed as one piece whereby a considerable simplification will be obtained with regard to the construction and manufacture of such pieces, and furthermore a considerable saving in costs will be realized with regard to the assembly, stock keeping and servicing of such valves.
  • the magnetic flux will be distributed uniformly as fast as possible over all valve spool webs, and in order to prevent a concentration of the magnetic flux on that valve spool web which is axially closest to the magnetic core, it is suggested that the plunger have a diameter which is as large as possible.
  • the magnetic valve illustrated therein comprises a valve cylinder means generally including a housing 1 of magnetizable material, for instance of cast iron in a single and magnetically uniform piece, with castin control edges 5 and 6 and with openings 4, 7 and 8 for the liquid flows to be controlled.
  • the magnetic valve according to the invention furthermore comprises a one-piece combined magnetic core-valve spool 2 with the magnetic core section 3 and the valve spool section 9.
  • the magnetic valve according to the invention furthermore comprises a magnetic coil 12 which is inserted into a bore 11 which latter is coaxial with the valve spool bore 10.
  • the iron casingfor the coil 12 is at the inlet end of bore 11 closed by a pole cover 13.
  • the magnetic core-valve spool 2 consists of magnetically well conducting soft iron.
  • the member 2 is at the sliding areas, i.e. at the cylindrical surfaces of the valve spool webs 17 and 18, case-hardened.
  • the valve spool section 9 has two spool webs 17 and 18 which at those end faces which face each other are provided each with a control edge 15, 16 cooperating with the control edges 5, 6 of the housing 1.
  • the webs 17 and 18 are separated from each other by the plunger 19 which has a relatively large cross-section.
  • the plunger 19 has a rather low magnetic resistance in view of its large cross-section and the material of which it is made.
  • a work air gap 20 is present between the movable magnetic core 3 and the pole cover 13. It is this gap 20 which has to be bridged when the magnetic core-valve spool 2 is attracted.
  • a return spring 23 is provided on that side of the magnetic core-valve spool 2 which faces away from the magnetic core 3 and the coil 12. This spring 23 rests against the valve spool through the intervention of a spring ring 21.
  • the magnetic valve is provided especially for such liquids which can flow around the coil 12 without damaging the same. Therefore, no sea] is provided on the magnetic core between the bore for the valve spool and the coil chamber 1 1.
  • the pole cover 13 is in a pressure-tight manner by means of an O-ring 25 and a four-cornered loose flange 26 screwed onto the end face of the housing 1 which has a four-cornered cross-section.
  • One end of the wire wound up in the coil is extended to a cable terminal 14 which is electrically insulated and connected to the pole cover 13.
  • the other end of said last mentioned wire is connected to the pole cover itself and is thus electrically connected to mass.
  • the coil is centered over the fixed pole cover 13 in the housing 1. This cover collects or gathers the magnetic flux lines in the coil core so that the lines will at the working gap 20 all extend in axial direction.
  • the magnetic flux lines When the coil is energized, a magnetic field is produced in the housing 1 the magnetic flux lines of which have their course determined primarily by the design of the housing.
  • the said magnetic flux lines have a course which is diagrammatically shown in the drawing and designated with the letter I
  • the said magnetic flux lines pass from the housing 1 through the fitting gap between the bore and the webs l7 and 18 into the valve spool and from there in part through the plunger 19 into the movable magnetic core 3.
  • the magnetic flux which passes axially through the working gap 20 has the tendency to attract the magnetic core-valve spool 2 against the force of the spring 23 and thereby to close the gap.
  • a magnetically actuated piston valve which includes: a housing of magnetizable material comprising a valve cylinder means having a cylindrical bore, a piston valve spool having a cylindrical surface area, the piston valve spool being reciprocable in said bore and guided by said cylindrical surface area in said cylindrical bore, at least two openings connected with said bore for a liquid flow to be controlled by said valve cylinder means and said piston valve spool, magnetic coil means arranged within said housing and defining a central passage aligned with and adjacent to said cylindrical bore, armature means reciprocable in said passage, said housing forming a single and magnetically uniform piece, said piston valve spool and said armature means also forming a single unitary magnetically uniform piece, said cylindrical bore of said valve cylinder means and the cylindrical surface area of said piston valve spool forming the only paired surfaces for guidance of said piston valve spool and armature means and simultaneously forming the only paired surfaces for transfer of magnetic flux from said housing to said armature means.
  • a magnetically actuated piston valve according to claim 4 in which only a thin peripheral layer of said cylindrical control sections is hardened.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Soft Magnetic Materials (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
US10761A 1969-02-21 1970-02-12 Magnetic valve Expired - Lifetime US3665963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691908659 DE1908659A1 (de) 1969-02-21 1969-02-21 Magnetventil

Publications (1)

Publication Number Publication Date
US3665963A true US3665963A (en) 1972-05-30

Family

ID=5725877

Family Applications (1)

Application Number Title Priority Date Filing Date
US10761A Expired - Lifetime US3665963A (en) 1969-02-21 1970-02-12 Magnetic valve

Country Status (5)

Country Link
US (1) US3665963A (enrdf_load_stackoverflow)
DE (1) DE1908659A1 (enrdf_load_stackoverflow)
FR (1) FR2032819A5 (enrdf_load_stackoverflow)
GB (1) GB1251016A (enrdf_load_stackoverflow)
SE (1) SE358224B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918312A (en) * 1973-06-08 1975-11-11 Bosch Gmbh Robert Hydraulically operated transmission system for automotive vehicles
US4511313A (en) * 1981-09-11 1985-04-16 Diesel Kiki Company, Ltd. Compression capacity control apparatus for swash plate compressor
EP1582791A1 (en) * 2004-03-30 2005-10-05 Toyoda Koki Kabushiki Kaisha Solenoid valve

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES480450A1 (es) * 1978-07-12 1979-12-16 Lucas Industries Ltd Valvula de control de fluidos accionable electromagneticamente.
JPS589307B2 (ja) * 1978-08-23 1983-02-19 株式会社日立製作所 比例形電磁弁
DE3212977A1 (de) * 1982-04-07 1983-10-13 Robert Bosch Gmbh, 7000 Stuttgart Magnetventil
JPH0368685U (enrdf_load_stackoverflow) * 1989-11-07 1991-07-05
US5251671A (en) * 1989-11-07 1993-10-12 Atsugi Unisia Corporation Pressure control valve assembly with feature of easy adjustment of set load

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765378A (en) * 1953-05-26 1956-10-02 Allis Chalmers Mfg Co Circuit breaker with hydraulic motor controlled by a hydraulically biased valve
US2853659A (en) * 1952-03-10 1958-09-23 Herion Erich Solenoid arrangements
US3166692A (en) * 1961-09-25 1965-01-19 Aero Flow Dynamics Inc Alternating current solenoid
US3245652A (en) * 1962-12-21 1966-04-12 Gabb Special Products Inc Valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853659A (en) * 1952-03-10 1958-09-23 Herion Erich Solenoid arrangements
US2765378A (en) * 1953-05-26 1956-10-02 Allis Chalmers Mfg Co Circuit breaker with hydraulic motor controlled by a hydraulically biased valve
US3166692A (en) * 1961-09-25 1965-01-19 Aero Flow Dynamics Inc Alternating current solenoid
US3245652A (en) * 1962-12-21 1966-04-12 Gabb Special Products Inc Valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918312A (en) * 1973-06-08 1975-11-11 Bosch Gmbh Robert Hydraulically operated transmission system for automotive vehicles
US4511313A (en) * 1981-09-11 1985-04-16 Diesel Kiki Company, Ltd. Compression capacity control apparatus for swash plate compressor
EP1582791A1 (en) * 2004-03-30 2005-10-05 Toyoda Koki Kabushiki Kaisha Solenoid valve
US20050217740A1 (en) * 2004-03-30 2005-10-06 Toyoda Koki Kabushiki Kaisha Solenoid valve
US7513272B2 (en) 2004-03-30 2009-04-07 Jtekt Corporation Solenoid valve

Also Published As

Publication number Publication date
DE1908659A1 (de) 1970-09-03
SE358224B (enrdf_load_stackoverflow) 1973-07-23
FR2032819A5 (enrdf_load_stackoverflow) 1970-11-27
GB1251016A (enrdf_load_stackoverflow) 1971-10-27

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