WO2005012697B1 - Electromagnetic valve system - Google Patents

Electromagnetic valve system

Info

Publication number
WO2005012697B1
WO2005012697B1 PCT/US2004/023685 US2004023685W WO2005012697B1 WO 2005012697 B1 WO2005012697 B1 WO 2005012697B1 US 2004023685 W US2004023685 W US 2004023685W WO 2005012697 B1 WO2005012697 B1 WO 2005012697B1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve system
spring
assembly
valve assembly
Prior art date
Application number
PCT/US2004/023685
Other languages
French (fr)
Other versions
WO2005012697A3 (en
WO2005012697A2 (en
Inventor
David Moyer
George Schwartz
Kevin Morrison
Original Assignee
Social Profit Network
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
Priority claimed from US10/674,743 external-priority patent/US20040113731A1/en
Application filed by Social Profit Network filed Critical Social Profit Network
Publication of WO2005012697A2 publication Critical patent/WO2005012697A2/en
Publication of WO2005012697A3 publication Critical patent/WO2005012697A3/en
Publication of WO2005012697B1 publication Critical patent/WO2005012697B1/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
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • 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
    • F16K31/0686—Braking, pressure equilibration, shock absorbing
    • F16K31/0689—Braking of the valve element
    • 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
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2146—Latching means
    • F01L2009/2148—Latching means using permanent magnet

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Systems are provided for electromagnetic actuation of a valve mechanism. A valve (12) is linearly moveable between a first closed position and a second open position. A first spring (30) is compressed when the valve is in the first closed position, and a second valve spring (28) is compressed when the valve is in the second open position. An electromagnetic actuation assembly (50) and a permanent magnet (42) is combined with the valve, such that the valve is latchable in either a closed or open position, and is readily movable between positions through application of energy to the electromagnetic circuitry. The electromagnetic circuitry is controllable to increase or decrease the local magnetic flux, such as to promote movement of the valve, or to provide a soft landing of the valve at either end of movement. Some system embodiments provide energy recovery, feed back, and/or feed forward sensing and control. The electromagnetic valve system can be implemented for a wide variety of engines, valves and actuators, such as for variable valve timing, valve disablement, and/or hybrid engine and energy storage applications.

Claims

AMENDED CLAIMS [Received by the International Bureau on 14 April 2005 (14.04.2005): original claims 1-50 replaced by amended claims 1-3, 10-14 and 25-31 ; claims 4-9, 15- 24 and 32-50 remain unchanged] What is claimed is:
1. A valve system, comprising: a valve assembly linearly movable between a first closed position and a second open position; a spring assembly in communication with the valve assembly having a first spring assembly position when the valve assembly is in the first closed position and a second spring assembly position when the valve assembly is in the second open position; at least one first electromagnet; at least one permanent magnet having a magnetic field; a clapper affixed to the valve assembly; and means for providing energy to each of at least one of the electromagnets for any of attracting the clapper and repelling the clapper; wherein the magnetic field from at least one of the permanent magnets provides an attractive latching force to the clapper when the valve assembly is in any of the closed position and the open position; and wherein the energy means provides energy to decrease a local magnetic flux to repel the clapper and provide a soft landing at any of the closed position and the open position.
2. The valve system of Claim 1 , wherein the at least one permanent magnet is located on the clapper.
3. The valve system of Claim 1 , wherein the clapper is magnetically conductive.
4. The valve system of Claim 3, further comprising: magnetically conductive material in contact with the permanent magnet, whereby the magnetically conductive clapper latches to the magnetically conductive material when the valve assembly is in any of the first closed position and the second open position.
55
5. The valve system of Claim 1 , wherein the a spring assembly comprises a first spring and a second spring, wherein the first spring is compressed by the valve assembly when the valve assembly is located in the second position, and is uncompressed when the valve assembly is located in the first position; and wherein the second spring is compressed by the valve assembly when the valve assembly is located in the first position, and is uncompressed when the valve assembly is located in the second position.
6. The valve system of Claim 5, wherein said first spring is isolated from the valve assembly at the first closed position, and wherein said second spring is isolated from the valve assembly at the second open position.
7. The valve system of Claim 5, wherein the first spring and the second spring each have a different rate of compression.
8. The valve system of Claim 5, wherein the first spring and the second spring have different lengths.
9. The valve system of Claim 5, wherein the first spring and the second spring have different masses.
10. The valve system of Claim 1 , wherein the means for providing energy to at least one of the electromagnets is controllable to increase a local magnetic field.
11. The valve system of Claim 1 , wherein the means for providing energy to at least one of the electromagnets is controllable to decrease a local magnetic field.
12. The valve system of Claim 1 , wherein the energy means is controllable to provide energy to a single of the electromagnets for both attracting the valve assembly and repelling the valve assembly during a single movement toward any of the closed position and the open position.
56
13. The valve system of Claim 1 , wherein the energy means is controllable to provide energy to at least one of the electromagnets to repel the valve assembly.
14. The valve system of Claim 1 , wherein the energy means is controllable to repel and attract the valve assembly to allow the valve assembly to be opened and/or closed more quickly than a natural frequency of the spring assembly would perform while still obtaining a soft landing.
15. The valve system of Claim 1 , further comprising: means for feedback control of valve assembly motion.
16. The valve system of Claim 15, wherein the feedback control compensates for any of friction forces and pressure forces.
17. The valve system of Claim 1 , further comprising: means for energy recovery during deceleration of said valve assembly.
18. The valve system of Claim 1 , wherein the attractive latching force is sufficient to hold the valve assembly in any of the first closed position and the second open position, such that no external power is required to hold the valve assembly in any of the first closed position and the second open position.
19. The valve system of Claim 1 , further comprising: means for storing energy recovered from at least one of the electromagnets.
20. The valve system of Claim 1, wherein at least one of the permanent magnets comprises any of neodymium and samarium cobalt.
57
21. The valve system of Claim 1 , wherein both a north pole and a south pole of at least one of the permanent magnets are used to attract or repel the valve assembly.
22. The valve system of Claim 1 , further comprising: an electromagnetic assembly core which extends from the electromagnet.
23. The valve system of Claim 22, wherein the electromagnetic assembly core comprises any of a solid material and a laminated material.
24. The valve system of Claim 22, wherein the electromagnetic assembly core comprises a laminated material, and wherein the valve assembly comprises a clapper fixedly attached to the valve assembly, the clapper comprising a laminated material.
25. A valve system, comprising: a valve assembly linearly movable between a closed position and an open position; a spring assembly associated with the valve assembly having a first spring assembly position when the valve is in the first closed position and a second spring assembly position when the valve is in the second open position; at least one electromagnet; at least one permanent magnet having a magnetic field; a clapper affixed to the valve assembly and movable in relation to the electromagnet; and means for providing energy to each of at least one of the electromagnets for any of attracting the clapper and repelling the clapper; wherein the magnetic field from at least one of the permanent magnets provides an attractive latching force to the clapper when the valve assembly is in any of the closed position and the open position; and
58 wherein the energy means provides energy to decrease a local magnetic flux to repel the clapper and provide a soft landing at any of the closed position and the open position.
26. The valve system of Claim 25, wherein the means for providing energy to at least one of the electromagnets is controllable to increase a local magnetic field.
27. The valve system of Claim 25, wherein the means for providing energy to at least one of the electromagnets is controllable to decrease a local magnetic field.
28. The valve system of Claim 25, is controllable means is controllable to provide energy to a single of the electromagnets for both attracting the clapper and repelling the clapper during a single movement toward any of the closed position and the open position.
29. The valve system of Claim 25, wherein the at least one permanent magnet is located on the clapper.
30. The valve system of Claim 25, wherein the at least one permanent magnet is integrated with the clapper.
31. The valve system of Claim 25, wherein the energy means is controllable to repel and attract the valve assembly to allow the valve assembly to be opened and/or closed more quickly than a natural frequency of the spring assembly would perform while still obtaining a soft landing.
32. The valve system of Claim 25, further comprising: means for feedback control of valve assembly motion.
33. The valve system of Claim 32, wherein the feedback control compensates for any of friction forces and pressure forces.
34. The valve system of Claim 25, further comprising: means for energy recovery during deceleration of said valve assembly.
35. The valve system of Claim 25, wherein the attractive latching force is sufficient to hold the valve assembly in any of the first closed position and the second open position, such that no external power is required to hold the valve assembly in any of the first closed position and the second open position.
36. The valve system of Claim 25, further comprising: means for storing energy recovered from at least one of the electromagnets.
37. The valve system of Claim 25, wherein the permanent magnet latches comprises any of neodymium and samarium cobalt.
38. The valve system of Claim 25, wherein the a spring assembly comprises a first spring and a second spring, wherein the first spring is compressed by the valve assembly when the valve assembly is located in the second position, and is uncompressed when the valve assembly is located in the first position; and wherein the second spring is compressed by the valve assembly when the valve assembly is located in the first position, and is uncompressed when the valve assembly is located in the second position.
39. The valve system of Claim 38, wherein the first spring is isolated from the valve assembly at the closed position, and wherein the second spring is isolated from the valve assembly at the open position.
40. The valve system of Claim 38, wherein the first spring and the second spring each have a different rate of compression.
41. The valve system of Claim 38, wherein the first spring and the second spring have different lengths.
42. The valve system of Claim 38, wherein the first spring and the second spring have different masses.
43. The valve system of Claim 25, wherein energy is returned to a power source by use of regenerative breaking of the clapper.
44. The valve system of Claim 25, wherein both a north pole and a south pole of at least one of the permanent magnet latches are used to attract or repel the clapper.
45. The valve system of Claim 25, further comprising: a software module for at least partially controlling a soft landing and optionally for reducing power consumption.
46. The valve system of Claim 25, further comprising: means to open the valve partially and close the valve again.
47. The valve system of Claim 25, further comprising: an electromagnetic core.
48. The valve system of Claim 47, wherein the electromagnetic core is formed as a laminated structure.
49. The valve system of Claim 25, wherein the clapper is formed as a spiral laminate structure.
50. The valve system of Claim 25, wherein the clapper comprises at least one permanent magnet which provides at least a portion of the magnetic field for the permanent magnetic latches.
61
PCT/US2004/023685 2003-07-25 2004-07-23 Electromagnetic valve system WO2005012697A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US49019503P 2003-07-25 2003-07-25
US60/490,195 2003-07-25
US10/674,743 US20040113731A1 (en) 2002-10-09 2003-09-29 Electromagnetic valve system
US10/674,743 2003-09-29
US10/897,875 2004-07-22
US10/897,875 US20050046531A1 (en) 2002-10-09 2004-07-22 Electromagnetic valve system

Publications (3)

Publication Number Publication Date
WO2005012697A2 WO2005012697A2 (en) 2005-02-10
WO2005012697A3 WO2005012697A3 (en) 2005-04-07
WO2005012697B1 true WO2005012697B1 (en) 2005-06-02

Family

ID=34119795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/023685 WO2005012697A2 (en) 2003-07-25 2004-07-23 Electromagnetic valve system

Country Status (2)

Country Link
US (1) US20050046531A1 (en)
WO (1) WO2005012697A2 (en)

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US20140015596A1 (en) * 2012-04-20 2014-01-16 Bryan A. Martin Magnetic field switches
EP2700807A1 (en) * 2012-08-23 2014-02-26 Continental Automotive GmbH Valve assembly for an injection valve and injection valve
US9435462B2 (en) * 2013-05-22 2016-09-06 Precision Engine Control Corporation Valve with latching return spring
US10613553B2 (en) * 2013-07-09 2020-04-07 Deka Products Limited Partnership Modular valve apparatus and system
US9518677B2 (en) 2013-11-06 2016-12-13 Ford Global Technologies, Llc Method and system for adjusting a fuel tank isolation valve
EP3034853B1 (en) * 2014-12-15 2018-05-23 Continental Automotive GmbH Coil assembly and fluid injection valve
US9777678B2 (en) 2015-02-02 2017-10-03 Ford Global Technologies, Llc Latchable valve and method for operation of the latchable valve
US9709006B2 (en) 2015-04-08 2017-07-18 Ford Global Technologies, Llc Systems and methods for depressurizing a fuel tank
US20170241380A1 (en) * 2016-02-22 2017-08-24 Donald Joseph Stoddard Liquid fuel based engine system using high velocity fuel vapor injectors
EP3244425A1 (en) * 2016-02-23 2017-11-15 Rausch und Pausch GmbH Pole tube for solenoids and magnetic valves, and method and device for producing the same
GB201801704D0 (en) * 2018-02-02 2018-03-21 Rolls Royce Plc Fuel flow valve
CN108374926A (en) * 2018-03-30 2018-08-07 浙江三泉智能科技有限公司 Impulse electromagnetic valve valve head and bathroom flushometer
SE542805C2 (en) * 2018-07-31 2020-07-14 Hedman Ericsson Patent Ab Electrically actuated valve actuator for an internal combustion engine
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Also Published As

Publication number Publication date
US20050046531A1 (en) 2005-03-03
WO2005012697A3 (en) 2005-04-07
WO2005012697A2 (en) 2005-02-10

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