WO2016130871A1 - Électro-aimant à course augmentée - Google Patents

Électro-aimant à course augmentée Download PDF

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Publication number
WO2016130871A1
WO2016130871A1 PCT/US2016/017648 US2016017648W WO2016130871A1 WO 2016130871 A1 WO2016130871 A1 WO 2016130871A1 US 2016017648 W US2016017648 W US 2016017648W WO 2016130871 A1 WO2016130871 A1 WO 2016130871A1
Authority
WO
WIPO (PCT)
Prior art keywords
armature
sliding arm
valve
electromagnetic signal
assembly
Prior art date
Application number
PCT/US2016/017648
Other languages
English (en)
Inventor
Raymond Mclauchlan
Original Assignee
Eaton Corporation
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 Eaton Corporation filed Critical Eaton Corporation
Priority to DE112016000398.6T priority Critical patent/DE112016000398T5/de
Priority to CN201680017780.8A priority patent/CN107407435A/zh
Publication of WO2016130871A1 publication Critical patent/WO2016130871A1/fr
Priority to US15/430,458 priority patent/US20180012692A9/en

Links

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
    • 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
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated 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
    • F16K31/0655—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
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor

Definitions

  • This application relates to solenoid assemblies. More specifically, the application provides a mechanism for amplifying the stroke of a solenoid armature.
  • Solenoid assemblies apply an electromagnetic signal to an armature to move the armature up or down.
  • the distance that the armature travels is the stroke.
  • To get a large distance stroke it is necessary to use a longer solenoid assembly and to give up some of the force of the armature's motion, or it is necessary to use a larger supply of electromagnetic force. This increases the cost and size of the solenoid assembly.
  • a solenoid assembly comprises a pole piece.
  • the pole piece comprises an inner chamber and inner grooves in the inner chamber, wherein the inner grooves are spaced to interface with a gear.
  • the solenoid assembly comprises an
  • a valve assembly comprises a flow path through a housing, at least one valve configured to selectively open and close the flow path, and a solenoid assembly.
  • the solenoid assembly comprises a pole piece.
  • the pole piece comprises an inner chamber and inner grooves in the inner chamber. The inner grooves are spaced to interface with a gear.
  • the solenoid assembly further comprises an electromagnetic signal source surrounding the pole piece and an armature configured to move in the inner chamber when an electromagnetic signal is transmitted by the electromagnetic signal source.
  • a solenoid assembly comprises a pole piece.
  • the pole piece comprises an inner chamber and an inner surface on the inner chamber. The inner surface contacts a roller.
  • the solenoid assembly further comprises an electromagnetic signal source surrounding the pole piece and an armature configured to move in the inner chamber when an electromagnetic signal is transmitted by the electromagnetic signal source.
  • a valve assembly comprises a flow path through a housing, at least one valve configured to selectively open and close the flow path, and a solenoid assembly.
  • the solenoid assembly comprises a pole piece.
  • the pole piece comprises an inner chamber and an inner surface on the inner chamber. The inner surface contacts a roller.
  • the solenoid assembly further comprises an electromagnetic signal source surrounding the pole piece and an armature configured to move in the inner chamber when an electromagnetic signal is transmitted by the electromagnetic signal source.
  • Figure 1 is cross-sectional of a pole piece assembly with an armature and a sliding arm.
  • Figure 2A is a view of a solenoid assembly in a casing.
  • Figure 2B is an exploded view of a solenoid assembly.
  • Figure 3 is a cross-sectional view of an electromagnetic signal source around a pole piece, the pole piece having an inner chamber for movement of an armature therein.
  • Figure 4 is a cross-sectional view of a fuel valve assembly comprising a solenoid assembly.
  • Figure 5 is a cross-sectional view of a pole piece assembly with balls instead of gears.
  • Figure 6A is a cross-sectional view of a rotating member arrangement.
  • Figures 6B-6C are cross-sectional views of rotating members.
  • Figure 1 shows a cross-sectional view of a pole piece assembly 100 with an armature 102 and a sliding arm 103.
  • the armature 102 is located in an inner chamber 141 of the pole piece 101 .
  • the armature 102 can move along axis A toward and away from the back wall 146 of the inner chamber 141 .
  • At least one gear 120 can be seated on the armature 102.
  • the gear 120 has teeth 122 that interface with inner grooves 1 10 in the inner chamber 141 .
  • a second gear 121 can also be seated on the armature 102.
  • the second gear 121 can also have teeth 122 that interface with a second set of inner groves 1 1 1 in the inner chamber 141 .
  • the gears 120, 121 are seated on the armature 102 in such a way that they do not move along axis A on the armature 102.
  • the gears 120, 121 can rotate, thereby allowing armature 102 to move toward and away from back wall 146.
  • the gears 120, 121 can include a bearing that rotates around a shaft or dowel 123.
  • the armature 102 can be a single unit or it can include a first portion 144 connected to a second portion 145.
  • the first portion 144 can be a dowel, pin, or shaft press-fit or snap fit into the second portion 145.
  • An end 150 of the first portion 144 can extend into a hollow portion 142 of the pole piece 101 .
  • the first portion 144 can be slip- fit into a passageway 151 connecting the hollow portion 142 to the inner chamber 141.
  • This arrangement allows the armature 102 to move axially within the pole piece 101 while reducing movement or vibrations in directions away from axis A. This arrangement helps to keep the pole piece 101 aligned along axis A with the armature 102 and the sliding arm 103.
  • the sliding arm 103 is located in a hollow portion 140 in the armature 102.
  • the sliding arm 103 can move along axis A towards and away from the back wall 143 of the hollow portion 140.
  • the sliding arm 103 has grooves 130 spaced apart to interface with the teeth 122 of the gear 120 seated on the armature 102.
  • the sliding arm can have multiple sets of grooves 130, 131 configured to interface with both gears 120, 121 .
  • sliding arm is moving along axis A at a rate R s relative to the armature 102 while the armature 102 is also moving along axis A at a rate R a relative to the pole piece 101 , which is not moving along axis A
  • the sliding arm 103 is moving at a rate of R s + R a along axis A relative to the stationary pole piece 101 .
  • the spacing of gear teeth 122, the spacing of inner groves 1 10, 1 1 1 , and the spacing of grooves 130, 131 can be set to determine the axial movement, or stroke, of the armature 102 and sliding arm 101 .
  • the depth of the hollow portion 142 and the inner chamber 141 can be selected to meet the needs of the solenoid assembly 100. For example, these areas can be made deeper to allow the armature 102 more room to move a greater distance along axis A. Likewise, hollow portion 140 can be made deeper to allow the sliding arm 103 to move a greater distance along axis A. This axial movement can be called a stroke. Thus, length of the stroke of the sliding arm 103 is longer than the stroke of the armature 102. Also, less magnetic force needs to be applied to move the sliding arm 103 and armature 102.
  • Figure 2A is a view of an assembled solenoid assembly 200.
  • Figure 2A includes an upper flux collector 201 , a casing 202, an electrical input port 209, a lower flux collector 208, and a pole piece 207.
  • An exploded view of the solenoid assembly 200 is shown in Figure 2B.
  • the solenoid assembly includes an upper flux collector 201 , casing 202, magnet wire 203, terminal 204, bobbin 205, diode 206, pole piece 207, and lower flux collector 208.
  • Figure 3 is a cross-sectional view of a solenoid assembly 300.
  • Solenoid assembly 300 includes a pole piece 301 surrounded by magnetic wire 313.
  • armature 302 is located in the pole piece 301 and a sliding arm 303 is located in the armature 302.
  • the pole piece 301 , armature 302, and sliding arm 303 are aligned along axis A.
  • Figure 3 shows a solenoid assembly 300 with the sliding arm 303 in a lifted position.
  • the original position of the top 348 of the sliding arm is marked as P2. This is the position where the sliding arm 303 is completely lifted, marking its upper boundary along axis A.
  • Position P6 marks the position of the top 348 of the sliding arm
  • D2 is the distance between P2 and P6, or in other words, D2 is equal to the distance that the sliding arm 303 traveled from its original position P2 to an extended position P6. D2 can be called the distance of the stroke of the sliding arm 303 in the extended position.
  • D2 is greater than D.
  • D is the distance that the armature 302 traveled from the original position P1 of the top 347 of the armature 302 to an extended position P5 of the top 347 of the armature 302.
  • the stroke of the sliding arm 303 is longer than the stroke of the armature 302 at the extended position.
  • N a factor which equals a number greater than 1
  • FIG. 6A shows a gear 620 having a first side 696 with a distance of n from the center C of the gear 620 to the first pitch surface 693 and a second side 697 with a distance of r 2 from the center C of the gear 620 to the second pitch surface 694. Because n is greater than r 2 , the rotational speed of gear 620 at the first pitch surface 693 is greater than the rotational speed at the second pitch surface 694.
  • the sliding arm 603 moves faster than the armature 602. This means the sliding arm 603 also has a longer stroke than the armature 602.
  • N 2
  • Figure 5 shows such an arrangement.
  • the sliding arm 503 moves twice as fast as the armature 502.
  • the sliding arm 503 can have a stroke twice as long as the stroke of armature 502.
  • Both rollers and gears are rotating members that can be used to amplify the stroke of a sliding arm.
  • Figure 6B shows an example of a toothed gear 620 with first teeth 622a on first side 696 and second teeth 622b on second side 697.
  • the rotating member need not be a roller or toothed gear.
  • rotating member 620C can amplify the stroke of a sliding arm.
  • rotating member 620C has a textured surface, for example, with bumps 624a and bumps 624b.
  • Rotating member 620C need not have a textured surface. Frictional forces can be sufficient when sides 696, 697 are smooth.
  • Rotating member 620C can contact the outer surface of a sliding arm in a similar way as rotating gear 620 contacts the sliding arm 603 in Figure 6A except that rotating member 620C does not have teeth that engage with grooves in the sliding arm.
  • Rotating member 620C can also contact the outer surface of a pole piece like the rotating gear 620 of Figure 6A contacts pole piece 601 except that rotating member 620C does not have teeth that engage with grooves in the pole piece.
  • Rotating member 620C has a first side 696 with a distance di away from the center C of rotating member 620C and a second side 697 with a distance of d 2 away from the center C of rotating member 620C. Because di is greater than d 2 , rotating member 620C amplifies the stroke of a sliding arm. One can adjust di and d 2 to achieve the desired amplification. [037] The amplified stroke is advantageous in many applications. One example application is fuel valve actuation, where a solenoid assists with fluid pressure control.
  • Figure 4 shows a valve assembly 400 with a solenoid assembly 460 in the extended position, where the armature 302 has moved a distance of D from its original position P1 and the sliding arm 403 has traveled a distance of D2 from its original position P2.
  • Figure 3 shows the sliding arm 303 and the armature 302 in a lifted position, where both the sliding arm 303 and the armature 302 have moved away from the extended position towards back wall 341 of the inner chamber 341 .
  • the distance between the original position P1 of the armature 302 and the lifted position P3 of the armature 302 is D4.
  • the distance between the original position P2 of the sliding arm 303 and the lifted position P4 of the sliding arm 303 is D3.
  • D3 is less than D4. This means that the distance between the top 348 of the sliding arm 303 and its original position P2 is less than the distance between the top 347 of the armature 302 and its original position P1 .
  • the sliding arm 303 when in the extended position, has a longer stroke than the armature 302, the sliding arm 303 can move closer to its original position P2 than the armature 302 can move to its original position P1 when in the lifted position.
  • gears 120, 121 allow the sliding arm 303 to move at a faster rate.
  • gears 120, 121 push the sliding arm 303 downward away from the armature 302, thereby causing the sliding arm 303 to move downward faster than the armature 302.
  • gears 120, 121 pull the sliding arm 303 upward toward the armature 302, thereby causing the sliding arm 303 to move upward faster than the armature 302.
  • Figure 4 shows a cross-sectional of a valve assembly 400 with a solenoid assembly 460.
  • the valve assembly 400 has a first flow path 471 in the housing 490 of the valve assembly 400 that can be connected to second flow path 472. Together, first flow path 471 and second flow path 472 can be a single flow path when connected. Fluid can flow from first flow path 471 to second flow path 472 or from second flow path 472 to first flow path 471 .
  • a check valve 480 or other valve can be connected to either first flow path 471 or second flow path 472.
  • Check valve 480 as shown in Figure 4, can serve to regulate fluid pressure, for example, opening when the pressure in flow path 471 reaches a certain threshold, thereby allowing fluid to flow from first flow path 471 to second flow path 472.
  • Valve 404 can allow or prevent a fluid from flowing between first flow path 471 and second flow path 472.
  • Valve 404 can be a poppet valve surrounded by an outer valve 405. When in the lifted position, valve 404 allows fluid to flow either from flow path 471 to flow path 472 or from flow path 472 to flow path 417. The flow can occur even when outer valve 405 is closed when valve 404 is in the lifted position.
  • Figure 4 shows an arrangement where both valve 404 and outer valve 405 are closed.
  • Pressure in second flow path 472 can build to a point where it raises outer valve 405, allowing fluid to flow from second flow path 472 to first flow path 471 .
  • the pressure in flow path 472 must overcome the force exerted by spring 406, which biases outer valve 405 toward the closed position.
  • the sliding arm 403 can be linked to valve 404.
  • valve 404 moves along axis A as the sliding arm 403 moves along axis A.
  • valve 404 is closed, as show in Figure 4.
  • valve 404 is open, thereby allowing fluid to flow from first flow path 471 to second flow path 472.
  • Valve 404 is lifted when an electric signal or current runs through the magnetic wire 413.
  • the magnetic wire 413 is an electromagnetic signal source.
  • An electricity source for example, an alternator, battery, generator, or other electric current source 493 can provide the electrical current.
  • the current can be controlled by a control system 492, for example, a computer or microcomputer.
  • a control system 492 for example, a computer or microcomputer.
  • the magnetic wire 413 transmits an electromagnetic signal and a magnetic field is created. This creates a magnetic force, which can attract metallic or other ferromagnetic materials.
  • the armature 402 can comprise metallic or ferromagnetic materials.
  • first portion 445 can be made of metal.
  • the electromagnetic signal created by current passing through the magnetic wire attracts the first portion 445 of the armature 402.
  • the magnetic force of the electromagnetic signal can pull first portion 445 upward toward back wall 449 of the hollow portion 442 of the pole piece 401 .
  • the magnetic force can also push first portion 445 downward away from back wall 449, for example, when first portion 445 is made of a permanent magnet.
  • the sliding arm can be made of a nonmetallic or nonferromagnetic material.
  • sliding arm 403 need not be affected by the magnetic force.
  • the sliding arm 403 and the second portion 444 of the armature can be made of a plastic or other lightweight moldable material.
  • the amount of magnetic force depends on the amount of current flowing through the magnetic wire 413.
  • the magnetic force also depends on the number of coils of wire.
  • the force can enter the solenoid assembly 460 through terminal 491 .
  • Terminal 491 can be connected to an electric current source 493 and a control system 492, for example, a microcomputer or other control system 492.
  • the control system 492 can be programmed to send a selected amount of electrical current at a selected time, thereby controlling when valve 404 is opened or closed.
  • a spring can bias valve 404 to remain in the closed position until valve 404 is lifted by the solenoid assembly. Gravity and fluid pressure can also bias valve 404 to remain in the closed position. The magnetic force, therefore, must be large enough to overcome the force exerted by any biasing force.
  • Figure 5 shows a cross-sectional of a pole piece assembly 500 comprising rollers 520 instead of gears.
  • the pole piece assembly 500 of Figure 5 can amplify the stroke of sliding arm 503.
  • rollers 520 can rotate thereby pushing sliding arm 503 downward when armature 502 moves downward.
  • rollers 520 can rotate pushing sliding arm 503 upward when armature 502 moves upward.
  • the outer surface 540 of rollers 520 engages the outer surface 530 of sliding arm 503. The engagement is maintained by frictional forces, thereby preventing rollers 520 and sliding arm 503 from slipping relative to each other.
  • the outer surface 540 of rollers 520 engages the surface 550 of inner chamber 541 .
  • Rollers 520, sliding arm 503, and pole piece 501 can be made of an anti- slip material to increase the friction forces where rollers 520 contact sliding arm 503 and where rollers 520 contact the inner chamber 541 of pole piece 501 .
  • Rollers 520, sliding arm 503, and pole piece 501 can also be coated with an anti-slip material to increase the friction forces.
  • Rollers 520 can be balls, cylinders, or other shapes.
  • Rotating members for example, the rotating member shown in Figure 6C, can be made of anti- slip material or coated with anti-slip material.
  • Texture for example bumps, knurls, or ridges, can be added to the surfaces of the rollers, gears, rotating members, sliding arm, and pole piece to increase the frictional forces, thereby preventing slip.
  • These parts can comprise the same anti-slip material or comprise different anti-slip materials.

Abstract

Un ensemble d'électro-aimant comprend une pièce polaire. La pièce polaire comprend une chambre interne et des rainures internes dans la chambre interne, les rainures internes étant espacées de manière à coopérer avec une roue dentée. L'ensemble d'électro-aimant comprend une source de signal électromagnétique entourant la pièce polaire, et une armature conçue pour se déplacer dans la chambre intérieure lorsqu'un signal électromagnétique est transmis par la source de signal électromagnétique.
PCT/US2016/017648 2015-02-12 2016-02-12 Électro-aimant à course augmentée WO2016130871A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112016000398.6T DE112016000398T5 (de) 2015-02-12 2016-02-12 Zylinderspule mit verstärktem Hub
CN201680017780.8A CN107407435A (zh) 2015-02-12 2016-02-12 具有放大行程的螺线管
US15/430,458 US20180012692A9 (en) 2015-02-12 2017-02-11 Multi-piece armature and solenoid with amplified stroke

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562115620P 2015-02-12 2015-02-12
US62/115,620 2015-02-12
US201562141718P 2015-04-01 2015-04-01
US62/141,718 2015-04-01

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/430,458 Continuation-In-Part US20180012692A9 (en) 2015-02-12 2017-02-11 Multi-piece armature and solenoid with amplified stroke

Publications (1)

Publication Number Publication Date
WO2016130871A1 true WO2016130871A1 (fr) 2016-08-18

Family

ID=56614911

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/017648 WO2016130871A1 (fr) 2015-02-12 2016-02-12 Électro-aimant à course augmentée

Country Status (3)

Country Link
CN (1) CN107407435A (fr)
DE (1) DE112016000398T5 (fr)
WO (1) WO2016130871A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10371278B2 (en) 2016-03-07 2019-08-06 Husco Automotive Holdings Llc Systems and methods for an electromagnetic actuator having a unitary pole piece

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6092784A (en) * 1997-12-30 2000-07-25 Dana Corporation Coil assembly useful in solenoid valves
KR200204737Y1 (ko) * 2000-06-17 2000-12-01 정태환 내장형 솔레노이드로 개폐되는 전기밸브
US20030201414A1 (en) * 1999-02-19 2003-10-30 Asco Controls, L.P. Extended range proportional valve
US6737946B2 (en) * 2000-02-22 2004-05-18 Joseph B. Seale Solenoid for efficient pull-in and quick landing
US20100108922A1 (en) * 2008-08-14 2010-05-06 Leonid Foshansky Multi-stable actuation apparatus and methods for making and using the same
US8272399B2 (en) * 2008-06-13 2012-09-25 Woodward, Inc. Fluid admission system for providing a pressure-balanced valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001229548A1 (en) * 2000-02-18 2001-08-27 Asco Controls, L.P. Extended range proportional valve
JP2002181222A (ja) * 2000-10-04 2002-06-26 Denso Corp 電磁弁装置およびその製造方法
JP5581973B2 (ja) * 2010-10-28 2014-09-03 株式会社デンソー 電磁ソレノイド
JP5533634B2 (ja) * 2010-12-21 2014-06-25 トヨタ車体株式会社 歯車の回転ロック機構
JP5962575B2 (ja) * 2013-04-23 2016-08-03 株式会社デンソー スタータ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6092784A (en) * 1997-12-30 2000-07-25 Dana Corporation Coil assembly useful in solenoid valves
US20030201414A1 (en) * 1999-02-19 2003-10-30 Asco Controls, L.P. Extended range proportional valve
US6737946B2 (en) * 2000-02-22 2004-05-18 Joseph B. Seale Solenoid for efficient pull-in and quick landing
KR200204737Y1 (ko) * 2000-06-17 2000-12-01 정태환 내장형 솔레노이드로 개폐되는 전기밸브
US8272399B2 (en) * 2008-06-13 2012-09-25 Woodward, Inc. Fluid admission system for providing a pressure-balanced valve
US20100108922A1 (en) * 2008-08-14 2010-05-06 Leonid Foshansky Multi-stable actuation apparatus and methods for making and using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10371278B2 (en) 2016-03-07 2019-08-06 Husco Automotive Holdings Llc Systems and methods for an electromagnetic actuator having a unitary pole piece

Also Published As

Publication number Publication date
CN107407435A (zh) 2017-11-28
DE112016000398T5 (de) 2017-10-26

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