US3738386A - Pressure-fluid electromagnetic valves - Google Patents

Pressure-fluid electromagnetic valves Download PDF

Info

Publication number
US3738386A
US3738386A US00239882A US3738386DA US3738386A US 3738386 A US3738386 A US 3738386A US 00239882 A US00239882 A US 00239882A US 3738386D A US3738386D A US 3738386DA US 3738386 A US3738386 A US 3738386A
Authority
US
United States
Prior art keywords
valve member
ball
duct
electromagnetic valve
supply duct
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
US00239882A
Other languages
English (en)
Inventor
P Quemerais
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.)
Renault SA
Original Assignee
Renault SA
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 Renault SA filed Critical Renault SA
Application granted granted Critical
Publication of US3738386A publication Critical patent/US3738386A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0651—One-way valve the fluid passing through the solenoid coil
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0672—One-way valve the valve member being a diaphragm
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
    • 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
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric

Definitions

  • monitored electromagnetic valves comprising two or more ways.
  • These electromagnetic valves comprise a sliding member or spool receiving on one face a counter pressure adapted to seat this sliding member in order to close the fluid flow passage.
  • this type of electromagnetic valve is objectionable in that this sliding member must be machined very accurately since it must be fitted with very close tolerances in bores permitting their frictionless movements.
  • Spring means must also be provided for returning the sliding member and since the masses thus controlled are relatively heavy, the response time is rather long.
  • an electromagnetic valve comprising a monitored ballvalve and adapted to control the passage of a fluid under pressure from an inlet duct to at least one outlet duct
  • this electromagnetic valve comprising, enclosed in a shielding case, a core surrounded by a coil winding and formed with an axial passage adapted in the energised condition of said coil winding to be closed by a rigid valve member responsive to the magnetic pull,
  • this electromagnetic valve being characterised in that the axial passage is connected to a chamber having a variable volume by having one of its walls made of a valve member of flexible material adapted to obturate a fluid flow orifice, said variable-volume chamber being connected to the fluid pressure supply duct.
  • the flexible valve member has formed therethrough an axial duct interconnecting the fluid inlet duct and the variable-volume chamber.
  • the rigid valve member responsive to the magnetic attraction comprises two balls, one ball being of relatively small diameter for closing the monitoring passage due to the pressure exerted by the other ball consisting of magnetic material.
  • the flexible valve member is adapted on the other hand to seal the orifice interconnecting said fluid inlet duct and an outlet duct; in this case, the electromagnetic valve is a two-way valve.
  • the flexible valve member carries a solid or hollow rod having secured to its outer end a ball valve adapted to be seatedagainst the edge of a communication orifice provided between the inlet duct and an outlet duct when the valve member is in its open position; in this case, the electromagnetic valve is a three-way one.
  • variable-volume chamber may also take place through an external passage or alternatively through a. hollow rod disposed through said flexible valve member and having an orifice communicating with the fluid inlet duct.
  • FIG. 1 is an axial section showing a two-way electromagnetic valve according to this invention, shown in its closed position;
  • FIG. 2 is a similar view showing a three-way valve in one of its two positions
  • FIG. 3 illustrates a modified form of embodiment of the three-way valve.
  • the electromagnetic valve shown in FIG. 1 comprises a shielding case 1 and a core 2 surrounded by a coil winding 3.
  • the core 2 comprises a central passage 4 of which the orifice 5 constitutes the seat of a small ball valve 6 co-acting with a larger ball valve 7 of magnetic material. These two balls are movable in a chamber 8 formed between the adjacent end of core 2 and the end cap 9 secured to the core.
  • This chamber comprises peripheral apertures 10 for discharging the fluid.
  • a flexible valve member 11 of plastic or rubber material has its base or flange 12 clamped along its peripheral edge between the shoulders 13 and 14 of a wall and the curved edges 15 and 16 of case 1.
  • This flexible valve member 11 comprises a central passage 17 in axial alignment with the passage 4 of core 2 and opens into a chamber 30; this passage 17 is reinforced in order to avoid any undesired distortion of its central portion and more particularly to keep its end orifice 31 duly open.
  • a pressure fluid supply duct 18 opens into the outlet duct 19 across an orifice 20 adapted to be closed by the flexible valve member 11.
  • This electromagnetic valve operates in two steps
  • the closed condition of the valve as illustrated in FIG. 1 is obtained by energising the coil winding 3.
  • the major ball valve 7 is thus attracted towards the core 2 and seats the minor ball valve 6 on its orifice 5.
  • From the supply duct 18 the fluid under pressure penetrates into the passage 17, flows through chamber 16 and passage 4, but cannot penetrate into chamber 8; under these conditions, a counter-pressure is created, notably in chamber 30, and acts against the base 12 of the flexible valve member of which the resulting distortion causes this base to engage and block the orifice 20.
  • This valve is opened by deenergising the winding 3.
  • the orifice 5 is uncovered by the minor ball 6 and the fluid under pressure drives the major ball 7 away, together with the minor ball 6, towardsthe bottom of chamber 8 and the fluid flows through the peripheral orifices 10 thus permitting the return of fluid to a colsure can flow freely from duct 18 to duct 19 in the di-- rection of the arrows f and f,.
  • FIG. 2 the component elements already found in the two-way valve of FIG. 1 are designated by the same reference numerals, but in the case of a three-way valve.
  • the fluid under pressure is supplied via duct 22 open ing into chamber 23.
  • the flexible valve member has an outer extension in the form of a rigid rod 24 carrying at its free or outer end a ball 25 adapted to close the orifice 26 of supply duct 22.
  • Another duct 28 interconnects the duct 22 and chamber 30. It may be noted that in the specific example illustrated the volume of chamber 30 has been increased by the interposition of a relatively thick gasket 29 between the edges and 16 of shielding case 1, on the one hand, and the peripheral edge of flange 12, on the other hand.
  • the rod 24 of flexible valve member 11 which may be solid or hollow, is replaced by a hollow rod 24' extending through the flexible valve member 11 so as to open into the duct 22.
  • This rod comprises a lateral orifice 32 providing a direct communication between said duct 22 and chamber 30, thus permitting of dispensing with the duct 28 of FIG. 2.
  • This three-way electromagnetic valve operates as follows, also in two steps During the first step corresponding to the energising of coil winding 3 and as a consequence of the closing of orifice 5 by the minor ball 6, as described hereinabove, the flexible valve 1 l responsive to the fluid pressure prevailing in chamber 30 closes the orifice 20.
  • Electromagnetic valve with monitored valve member adapted to control the flow of a fluid under pressure from a supply duct to at least one outlet duct, which comprises inside a shielding case a core surrounded by a coil winding, a monitoring passage formed through said core and adapted to be closed in the energised condition of said coil winding by a rigid valve member responsive to the magnetic pull, this electromagnetic valve being characterised in that the aforesaid monitoring core passage is connected to a variable-volume chamber of which one wall consists of a flexible valve member adapted to seal a fluid flow orifice, said variable-volume chamber being connected to said pressure fluid supply duct.
  • Electromagnetic valve according to claim 1 characterised in that said flexible valve member has formed therethrough an axial passage for connecting said supply duct to said variable-volume chamber.
  • Electromagnetic valve according to claim 1 characterised in that said rigid valve member comprises two ball valves, that is, a ball of relatively small diameter and another ball valve of relatively large diameter, the minor ball being adapted to stop the monitoring passage of said core under the thrust of said major ball, said major ball consisting of magnetic material.
  • Electromagnetic valve according to claim 1 characterised in that said flexible valve member carries a solid or hollow rod supporting in turn at its outer end a ball adapted to stop the orifice communicating said supply duct to an outlet duct when said flexible valve member is in its open position.
  • Electromagnetic valve according to claim 4 characterised in that said rod is solid and that a duct disposed externally of the valve structure connects said variable-volume chamber to said supply duct.
  • Electromagnetic valve according to claim 4 characterised in that said rod is hollow, extends through said flexible valve member and comprises a lateral orifice for connecting the supply duct to said variablevolume chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)
US00239882A 1971-04-09 1972-03-31 Pressure-fluid electromagnetic valves Expired - Lifetime US3738386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7112775A FR2133174A5 (enrdf_load_stackoverflow) 1971-04-09 1971-04-09

Publications (1)

Publication Number Publication Date
US3738386A true US3738386A (en) 1973-06-12

Family

ID=9075106

Family Applications (1)

Application Number Title Priority Date Filing Date
US00239882A Expired - Lifetime US3738386A (en) 1971-04-09 1972-03-31 Pressure-fluid electromagnetic valves

Country Status (5)

Country Link
US (1) US3738386A (enrdf_load_stackoverflow)
DE (2) DE2216774A1 (enrdf_load_stackoverflow)
FR (1) FR2133174A5 (enrdf_load_stackoverflow)
GB (1) GB1366200A (enrdf_load_stackoverflow)
IT (1) IT950978B (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231172C1 (de) * 1982-08-21 1984-03-01 Drägerwerk AG, 2400 Lübeck Elektromagnetisch betaetigtes Ventil fuer Druckmittel
GB2131917B (en) * 1982-12-14 1987-01-21 British Gas Corp Solenoid-operated valves
DE3544527C1 (de) * 1985-12-17 1987-07-16 Pierburg Gmbh & Co Kg Elektromagnetisches Steuerventil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016065A (en) * 1958-02-26 1962-01-09 Lucifer Sa Servo-valves
US3188148A (en) * 1964-11-16 1965-06-08 Girling Ltd Fluid flow control valve
US3395617A (en) * 1965-08-30 1968-08-06 Ford Motor Co Servo motor for positioning a valve as a function of engine load
US3434690A (en) * 1965-07-20 1969-03-25 Joseph D Troncale Sr Electrically operated fluid control valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016065A (en) * 1958-02-26 1962-01-09 Lucifer Sa Servo-valves
US3188148A (en) * 1964-11-16 1965-06-08 Girling Ltd Fluid flow control valve
US3434690A (en) * 1965-07-20 1969-03-25 Joseph D Troncale Sr Electrically operated fluid control valve
US3395617A (en) * 1965-08-30 1968-08-06 Ford Motor Co Servo motor for positioning a valve as a function of engine load

Also Published As

Publication number Publication date
DE2216774A1 (de) 1972-10-19
GB1366200A (en) 1974-09-11
IT950978B (it) 1973-06-20
FR2133174A5 (enrdf_load_stackoverflow) 1972-11-24
DE7213052U (de) 1976-01-15

Similar Documents

Publication Publication Date Title
US5474107A (en) Fail-open solenoid actuated valve
US6149124A (en) Pilot solenoid control valve with pressure responsive diaphragm
US3667722A (en) Proportional valve
US4746093A (en) Piloted valve
US2235304A (en) Valve
US2969088A (en) Pilot valve
US3627257A (en) Electromagnetically controlled fluid-operating valve
US4083380A (en) Fluid valve assembly
US5413308A (en) Fail-open solenoid actuated valve
US4620565A (en) Integrated three way and isolation solenoid valve
US3441246A (en) Electromagnetic valve
CA1229541A (en) Pressure regulator
US3219063A (en) Valve with increased flow area
JP2004504566A (ja) 比例圧力制御弁
US3760843A (en) Multi-way directional fluid flow control valve arrangement
EP2689141A2 (en) Electro-proportional pilot operated poppet valve with pressure compensation
US4150695A (en) Solenoid pilot operated change-over valve
US3797526A (en) Cage valve with pilot and mechanical operating means
JPH02286976A (ja) 圧力作動式逆止弁
US3324890A (en) Solenoid valve having controlled retardation of spool motion
US3324888A (en) Three-way, two-position valve
USRE29481E (en) Multi-way directional fluid flow control valve arrangement
US4541610A (en) Fluid flow control valve assemblies
US4234009A (en) Straight flow seat valve
CN108700202B (zh) 电磁阀和电磁阀的应用