US20050092376A1 - Three port -two way solenoid valve - Google Patents
Three port -two way solenoid valve Download PDFInfo
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- US20050092376A1 US20050092376A1 US11/004,125 US412504A US2005092376A1 US 20050092376 A1 US20050092376 A1 US 20050092376A1 US 412504 A US412504 A US 412504A US 2005092376 A1 US2005092376 A1 US 2005092376A1
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- port
- channels
- plunger
- opening
- valve assembly
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- 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
- F16K31/0665—Lift valves with valve member being at least partially ball-shaped
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- 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
- Y10T137/87169—Supply and exhaust
- Y10T137/87217—Motor
Definitions
- the present invention relates to control valves and more particularly, to an apparatus and method for providing a three port-two way normally closed solenoid valve.
- a solenoid valve assembly typically comprises at least the following elements: a cylindrical coil, a ferromagnetic frame or structure, a ferromagnetic plunger and if necessary a stationary magnetic pole or travel stop.
- a magnetic field is generated in the solenoid by passing an electrical current through the coil.
- the frame or structure surrounding the coil, the plunger and the stationary magnetic pole provide a flux path or focus the magnetic field.
- the plunger reacts to the magnetic field and is attracted to the stationary pole, wherein the movement of the plunger is used to cause a desired effect, for example the opening and closing of a valve by manipulating a member or device for the desired effect.
- Solenoid valves or solenoid control valves are used in many applications and as these applications vary so do the constraints associated therewith.
- selecting or designing a solenoid actuated valve assembly many factors are considered such as, size constraint, durability, expected life and as well as others. As the required operation of the valve assembly becomes more complex, the number of moving parts requiring specific tolerances and alignment also increases.
- a three port-two way solenoid valve assembly wherein the configuration of the valve actuating assembly is configured to provide a durable device with larger tolerance as compared to other three port-two way valve assemblies.
- a valve assembly for use with a solenoid having a plunger being actuatable from a first position to a second position comprising: a housing, comprising a first port, a second port and a third port and a central opening being defined by a plurality of first channels, a plurality of second channels and a reduced opening disposed between the plurality of first channels and the plurality of second channels; a movable element disposed within the central opening, the movable element being moved when the plunger moves from the first position to the second position; wherein the first port is in fluid communication with the second port via the plurality of first channels when the plunger is in the first position; and wherein the first port is in fluid communication with the third port via the plurality of second channels, the reduced opening and the plurality of first channels when the plunger is in the second position.
- a three port-two way valve assembly comprising: a solenoid for actuating a plunger between a first position and a second position wherein movement of the plunger from the first position to the second position manipulates an element of the valve assembly wherein movement of the element closes a first fluid path and opens a second fluid path, the first fluid path being defined by; a first port in the valve assembly, a plurality of first openings in fluid communication with the first port, the plurality of first openings defining a race for a portion of the element to move within, and a second port in fluid communication with the plurality of first openings when the plunger is in the first position; and the second fluid path being defined by; a third port in the valve assembly, a plurality of second openings in fluid communication with the third port, the plurality of second openings defining a race for a sealing member movably disposed in the race, and an opening in fluid communication with the plurality of first openings and the plurality of second openings when the plunger is in the second position.
- a method for actuating a three port-two way valve assembly having a plunger being actuatable from a first position to a second position by a solenoid comprising: moving the plunger from a first position to a second position wherein movement of the plunger from the first position to the second position manipulates an element of the valve assembly along the same axis as the plunger and the element closes a first fluid path defined by; a first port in the valve assembly, a plurality of first openings in fluid communication with the first port, the plurality of first openings defining a race for a portion of the element to move within and a second port in fluid communication with the plurality of first openings, and the element opens a second fluid path defined by; a third port is the valve assembly, a plurality of second openings in fluid communication with the third port, the plurality of second openings defining a race for a sealing member movably disposed in the race, and an opening in fluid communication with the plurality of first openings and the plurality of second openings;
- FIG. 1 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a first normally closed position;
- FIG. 2 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a second open position;
- FIG. 3 is a view along lines 3 - 3 of FIG. 1 ;
- FIG. 4 is a view along lines 4 - 4 of FIG. 1 ;
- FIG. 5 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a first normally closed position
- FIG. 6 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a second open position.
- valve assembly 10 a three port-two way normally closed solenoid valve assembly 10 is illustrated. Although the present disclosure will describe the valve assembly as being normally closed it is of course, contemplated that the valve assembly of the present disclosure may be configured to be normally open.
- An example of an intended use of the present disclosure is in the hydraulic control system of hydraulic transmissions for a vehicle wherein a controller provides a signal to the valve assembly to actuate the plunger in order to facilitate the shifting of the transmission.
- a controller provides a signal to the valve assembly to actuate the plunger in order to facilitate the shifting of the transmission.
- the present disclosure is not intended to be limited to this particular use, as the applications of the valve assembly of the present disclosure are numerous.
- the valve assembly 10 comprises a magnetic package or assembly 12 and a hydraulic or valve assembly 14 each of which are disposed at least partially within a frame 16 of the valve assembly 10 .
- Magnetic assembly 12 further comprises at least one coil 18 wound about a spool or bobbin 20 .
- Bobbin 20 is formed out of a non-ferromagnetic material such as plastic or non-ferromagnetic metals and is configured to have an area 22 for receiving the coil.
- the bobbin also defines a central opening 24 configured for slidably receiving a plunger element 26 therein.
- plunger 26 is slidably received within a central opening that preferably comprises a low friction material such as plastic or non-ferromagnetic metals.
- central opening 24 is open at a first end 28 and is closed at a second end 30 .
- first spring 32 Disposed between second end 30 and one end of plunger 26 is a first spring 32 , which in the assembled state of the valve assembly makes contact with second end 30 and a receiving area 34 disposed within one end of plunger 26 .
- plunger 26 is configured to have a flat surface with no receiving area 34 .
- Magnetic package 12 also comprises a stationary magnetic pole or primary plate 36 .
- Primary plate 36 is disposed between the bobbin and valve assembly 14 when valve assembly 10 is completely assembled.
- Primary plate 36 is also configured to have a central opening 38 .
- frame 16 , plunger 26 and primary plate or stationary magnetic pole 36 are constructed out of ferromagnetic materials, or equivalents thereof, which will cause plunger 26 to be actuated to the position illustrated in FIG. 2 when the coils are energized.
- Valve assembly 14 comprises a housing 40 having a flange portion 42 which is received within frame 16 and is positioned adjacent to primary plate 36 in the completed valve assembly. Housing 40 also comprises a central through opening 44 having a poppet rod opening 46 in fluid communication with a supply port opening 48 via a reduced opening 50 disposed therebetween.
- a poppet rod element or movable element 52 is configured to be slidably received within central through opening 44 .
- Poppet rod element 52 is configured to be moved, actuated or slid from the position illustrated in FIG. 1 to the position illustrated in FIG. 2 by plunger 26 .
- Poppet rod element 52 further comprises a head portion 54 , a body portion 56 and an actuating tip 58 .
- poppet rod 52 is formed out of stainless steel. Of course, other equivalent materials or materials of equivalent characteristics are contemplated for poppet rod 52 , such as non-ferromagnetic materials.
- poppet rod element 52 comprises a reduced or conically shaped area between actuating tip 58 and body portion 56 , which has a similar configuration to the walls comprising reduced opening 50 at the poppet rod element and reduced opening interface.
- actuating tip 58 and body portion 56 are contemplated to be within the scope of the present disclosure. This configuration and the length of actuating tip 58 provides a portion of the fluid path illustrated in FIGS. 2 and 6 .
- a means for sealing supply port opening 48 from reduced opening 50 is disposed within supply port opening 48 .
- the means for sealing supply port opening 48 comprises a ball or sphere 60 , a biasing spring 62 and a spring retainer 64 .
- Ball or sphere 60 is configured to be moved, actuated, rolled or slid from the position illustrated in FIG. 1 to the position illustrated in FIG. 2 .
- ball 60 is inserted first, then spring 62 and then spring retainer 64 , which may be press fitted therein to retain ball 60 and spring 62 into supply port 66 .
- biasing spring 62 and/or spring 32 can be eliminated.
- Housing 40 also has a supply port 66 , a pair of control ports 68 and a pair of exhaust ports 70 (illustrated in phantom) as they are normal to the plane illustrated by FIGS. 1 and 2 . It is, of course, contemplated that in accordance with alternative exemplary embodiments housing 40 may have at least one supply port and/or at least one control port or alternatively more than two supply ports and/or more than two control ports.
- control ports 68 are in fluid communication with exhaust ports 70 , wherein the movement of the poppet rod element from the position in FIG. 1 to the position in FIG. 2 causes the exhaust ports 70 to be sealed and control ports 68 are now in fluid communication with supply port 66 .
- poppet rod opening 46 is configured to have a plurality of fluted openings 72 disposed about the periphery of poppet rod opening 46 .
- Openings 72 provide a means for fluid communication between exhaust ports 70 and control ports 68 when the poppet rod element is in the position illustrated by FIG. 1 .
- Openings or channels 72 may have any configuration sufficient to enable fluid transfer between ports 68 and ports 70 .
- the path of fluid communication is illustrated by the arrows in FIG. 5 , wherein the numerous reference numerals of FIG. 1 are removed for clarity.
- fluid may travel into control ports 68 , then through fluted openings 72 into the area defined between head portion 54 and flange portion 42 of housing 40 and then ultimately into exhaust ports 70 , when the assembly is in the position illustrated in FIGS. 1 and 5 .
- the flow of the fluid may be opposite to the directions shown in FIG. 5 .
- opening 46 and flutted openings 72 define an inner race for allowing body portion 56 of poppet rod 52 to be slidably received therein while also maintaining the fluid path illustrated in FIG. 5 .
- This inner race allows the poppet rod to be slid therein while also allowing fluid communication around body portion 56 .
- body portion 56 is slightly smaller than the inner race.
- opening 46 does not have any fluted openings and body portion 56 of poppet rod element is configured to have fluted openings or channels disposed on an exterior surface thereof to allow for the fluid to pass therethrough.
- both the body portion 56 and opening 46 are configured to have openings.
- the openings should have different configurations or sizes to allow for fluid transfer as well as movement of the poppet rod element within the opening.
- supply port opening 48 is also configured to have a plurality of fluted openings 74 disposed about the periphery of supply port opening 48 .
- Openings 74 provide a means for fluid communication between supply port opening 48 and control ports 68 through reduced opening 50 when the poppet rod element is in the position illustrated by FIG. 2 .
- Openings or channels 74 may have any configuration sufficient to enable fluid transfer between port 66 and port 68 .
- the path of fluid communication is illustrated by the arrows in FIG. 6 wherein the numerous reference numerals of FIG. 2 are removed for clarity.
- fluid may travel into the supply port opening 48 , through fluted openings 74 and into control ports 68 , when the assembly is in the position illustrated in FIGS. 2 and 6 .
- the spring retainer is also configured to allow fluid therethrough by for example, openings disposed therein or alternatively being press fitted into the inner race defined by openings 74 wherein openings 74 are disposed about the periphery of spring retainer 64 .
- spring retainer is a filter, which may comprise a mesh material adapted to filter the fluid passing through the supply port.
- the spring retainer or filter is secured by any know securement means including but not limited to the following: press fitting, interference fit, welding (ultrasonically or otherwise) and chemical (e.g., adhesive).
- valve assembly of the present disclosure is illustrated in its normally closed position wherein the ball positioned within supply port opening is biased into the illustrated position by either spring 62 or a hydrostatic or hydrodynamic pressure from the fluids in communication with port 66 or alternatively both, which will keep the ball in the position illustrated, wherein opening 50 is sealed by ball 60 .
- the surface area surrounding opening 50 on the supply port side is chamfered or angled to facilitate the closing or sealing of reduced opening 50 by ball 60 .
- openings 74 terminate before opening 50 so that ball 60 provides an effective means for sealing of the same.
- actuating tip 58 makes contact with ball 60 and passes through reduced opening 50 in order to move ball 60 to the position illustrated in FIG. 2 .
- actuating tip 58 is smaller than opening 50 and is of a sufficient length to move ball 60 to a position wherein fluid from supply port 66 may travel through openings 74 , through opening 50 into opening 72 and ultimately to ports 68 .
- exhaust ports 70 are effectively sealed off by head portion 54 of poppet rod element 52 .
- head portion 54 which has an outer diameter large enough to cover openings 72 by engaging a surface of head portion 54 with the surface of flange portion 42 comprising openings 72 .
- opening 38 is of a sufficient size to allow head portion 54 to be inserted therein.
- head portion 54 is also configured to be inserted therein by plunger 26 .
- the poppet rod element provides the dual function of opening or fluidly connecting supply port 66 with control ports 68 while sealing exhaust ports 70 from opening 72 .
- a single element e.g., poppet rod element
- the path of movement of the poppet rod element required for such an operation is, in accordance with the present disclosure, along the same path, axis or line of movement of the plunger element which will provide the least amount of side loads on the plunger or in other words the load (e.g., movement of the poppet rod element) is in line with the path of travel of the plunger, which is illustrated in the Figures as well as arrows 76 .
- plunger 26 and head portion 54 are arranged to merely make contact with each other (e.g., there is no press fit or securement of the poppet rod to the plunger).
- the plunger and the head portion are the only two portions that make contact with each other in order to actuate the poppet rod and thus the valve assembly, there can be a larger tolerance for mis-alignment both perpendicularly and concentrically between the plunger and the poppet rod element, as this is the only interface between the plunger and the poppet rod element and the interface is not a fixed point of securement between the two. Therefore, the present disclosure provides a valve assembly having a configuration that provides a reduced tolerance stack.
- the plunger be actuatable to move the poppet rod the pre-determined distance required to make the head portion contact the flange portion and effectively seal off exhaust ports 70 by blocking openings 72 .
- the major forces applied or stress induced upon poppet rod element 52 are at the surface of head portion making contact with the surface of the flange portion to close openings 72 , which effectively is a surface mating with another surface wherein the mating surfaces are larger in area than the contact point or contact line between the ball and the actuating tip of the poppet rod element.
- the flat surface of head portion 54 is equipped with a washer or grommet 78 , which provides a means for sealing openings 72 when the poppet rod element is manipulated to the position illustrated in FIGS. 2 and 6 .
- actuating tip 58 pushes ball 60 so that supply port 66 is in fluid communication with control ports 68 via openings 72 , 74 and 50 .
- actuating tip 58 only pushes ball 60 so that this fluid path between port 66 and ports 68 is enabled.
- actuating tip only encounters forces necessary to move ball 60 (e.g., the biasing force of spring 62 and the pressure of the fluid in communication with supply port 66 ).
- actuating tip 58 can have relatively small cross section enabling it to pass through reduced opening 50 while still allowing fluids to pass therethrough.
- the area of the poppet rod element that comprises the body portion to actuating tip interface does not make contact with the walls comprising opening 50 in order to maintain the fluid path between supply port 66 and control ports 68 .
- the outer configuration of the housing may be varied for insertion of the same into a fluid containing reservoir wherein O-rings 80 are received with grooves 82 in order to provide an appropriate seal between the housing and any aperture it may be inserted into.
- the configuration of the housing and the number of O-rings may vary.
Abstract
A valve assembly for use with a solenoid having a plunger being actuatable from a first position to a second position, comprising: a housing, comprising a first port, a second port and a third port and a central opening being defined by a plurality of first channels, a plurality of second channels and a reduced opening disposed between the plurality of first channels and the plurality of second channels; a movable element disposed within the central opening, the movable element being moved when the plunger moves from the first position to the second position; wherein the first port is in fluid communication with the second port via the plurality of first channels when the plunger is in the first position; and wherein the first port is in fluid communication with the third port via the plurality of second channels, the reduced opening and the plurality of first channels when the plunger is in the second position.
Description
- The present invention relates to control valves and more particularly, to an apparatus and method for providing a three port-two way normally closed solenoid valve.
- A solenoid valve assembly typically comprises at least the following elements: a cylindrical coil, a ferromagnetic frame or structure, a ferromagnetic plunger and if necessary a stationary magnetic pole or travel stop. As is known in the related arts a magnetic field is generated in the solenoid by passing an electrical current through the coil. The frame or structure surrounding the coil, the plunger and the stationary magnetic pole provide a flux path or focus the magnetic field. The plunger reacts to the magnetic field and is attracted to the stationary pole, wherein the movement of the plunger is used to cause a desired effect, for example the opening and closing of a valve by manipulating a member or device for the desired effect.
- Solenoid valves or solenoid control valves are used in many applications and as these applications vary so do the constraints associated therewith. When selecting or designing a solenoid actuated valve assembly many factors are considered such as, size constraint, durability, expected life and as well as others. As the required operation of the valve assembly becomes more complex, the number of moving parts requiring specific tolerances and alignment also increases.
- A three port-two way solenoid valve assembly wherein the configuration of the valve actuating assembly is configured to provide a durable device with larger tolerance as compared to other three port-two way valve assemblies.
- A valve assembly for use with a solenoid having a plunger being actuatable from a first position to a second position, comprising: a housing, comprising a first port, a second port and a third port and a central opening being defined by a plurality of first channels, a plurality of second channels and a reduced opening disposed between the plurality of first channels and the plurality of second channels; a movable element disposed within the central opening, the movable element being moved when the plunger moves from the first position to the second position; wherein the first port is in fluid communication with the second port via the plurality of first channels when the plunger is in the first position; and wherein the first port is in fluid communication with the third port via the plurality of second channels, the reduced opening and the plurality of first channels when the plunger is in the second position.
- A three port-two way valve assembly, comprising: a solenoid for actuating a plunger between a first position and a second position wherein movement of the plunger from the first position to the second position manipulates an element of the valve assembly wherein movement of the element closes a first fluid path and opens a second fluid path, the first fluid path being defined by; a first port in the valve assembly, a plurality of first openings in fluid communication with the first port, the plurality of first openings defining a race for a portion of the element to move within, and a second port in fluid communication with the plurality of first openings when the plunger is in the first position; and the second fluid path being defined by; a third port in the valve assembly, a plurality of second openings in fluid communication with the third port, the plurality of second openings defining a race for a sealing member movably disposed in the race, and an opening in fluid communication with the plurality of first openings and the plurality of second openings when the plunger is in the second position.
- A method for actuating a three port-two way valve assembly having a plunger being actuatable from a first position to a second position by a solenoid, comprising: moving the plunger from a first position to a second position wherein movement of the plunger from the first position to the second position manipulates an element of the valve assembly along the same axis as the plunger and the element closes a first fluid path defined by; a first port in the valve assembly, a plurality of first openings in fluid communication with the first port, the plurality of first openings defining a race for a portion of the element to move within and a second port in fluid communication with the plurality of first openings, and the element opens a second fluid path defined by; a third port is the valve assembly, a plurality of second openings in fluid communication with the third port, the plurality of second openings defining a race for a sealing member movably disposed in the race, and an opening in fluid communication with the plurality of first openings and the plurality of second openings; wherein the element comprises a head portion, a main body portion and an actuating tip, wherein the head portion seals the plurality of first openings from the second port when the plunger is in the second position and the actuating tip enables fluid communication between the plurality of first openings and the plurality of second openings by moving the sealing member of the opening away from a sealing position, the sealing member being biased into the sealing position.
- The above-described and other features and advantages of the present invention will be appreciated and understood by those skilled in the art from the following detailed description, drawings, and appended claims.
-
FIG. 1 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a first normally closed position; -
FIG. 2 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a second open position; -
FIG. 3 is a view along lines 3-3 ofFIG. 1 ; -
FIG. 4 is a view along lines 4-4 ofFIG. 1 ; -
FIG. 5 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a first normally closed position; and -
FIG. 6 is a cross-sectional view of a normally closed three port-two way solenoid actuated valve of the present disclosure in a second open position. - Referring now to
FIGS. 1 and 2 , a three port-two way normally closedsolenoid valve assembly 10 is illustrated. Although the present disclosure will describe the valve assembly as being normally closed it is of course, contemplated that the valve assembly of the present disclosure may be configured to be normally open. - An example of an intended use of the present disclosure is in the hydraulic control system of hydraulic transmissions for a vehicle wherein a controller provides a signal to the valve assembly to actuate the plunger in order to facilitate the shifting of the transmission. Of course, the present disclosure is not intended to be limited to this particular use, as the applications of the valve assembly of the present disclosure are numerous.
- The
valve assembly 10 comprises a magnetic package orassembly 12 and a hydraulic orvalve assembly 14 each of which are disposed at least partially within aframe 16 of thevalve assembly 10.Magnetic assembly 12 further comprises at least onecoil 18 wound about a spool orbobbin 20. Bobbin 20 is formed out of a non-ferromagnetic material such as plastic or non-ferromagnetic metals and is configured to have anarea 22 for receiving the coil. In addition, the bobbin also defines acentral opening 24 configured for slidably receiving aplunger element 26 therein. Thus,plunger 26 is slidably received within a central opening that preferably comprises a low friction material such as plastic or non-ferromagnetic metals. - In accordance with an exemplary embodiment
central opening 24 is open at afirst end 28 and is closed at asecond end 30. Disposed betweensecond end 30 and one end ofplunger 26 is afirst spring 32, which in the assembled state of the valve assembly makes contact withsecond end 30 and areceiving area 34 disposed within one end ofplunger 26. As an alternative,plunger 26 is configured to have a flat surface with noreceiving area 34. -
Magnetic package 12 also comprises a stationary magnetic pole orprimary plate 36.Primary plate 36 is disposed between the bobbin andvalve assembly 14 whenvalve assembly 10 is completely assembled.Primary plate 36 is also configured to have acentral opening 38. In an exemplary embodiment,frame 16,plunger 26 and primary plate or stationarymagnetic pole 36 are constructed out of ferromagnetic materials, or equivalents thereof, which will causeplunger 26 to be actuated to the position illustrated inFIG. 2 when the coils are energized. -
Valve assembly 14 comprises ahousing 40 having aflange portion 42 which is received withinframe 16 and is positioned adjacent toprimary plate 36 in the completed valve assembly.Housing 40 also comprises a central through opening 44 having a poppet rod opening 46 in fluid communication with a supply port opening 48 via a reducedopening 50 disposed therebetween. - A poppet rod element or
movable element 52 is configured to be slidably received within central through opening 44.Poppet rod element 52 is configured to be moved, actuated or slid from the position illustrated inFIG. 1 to the position illustrated inFIG. 2 byplunger 26.Poppet rod element 52 further comprises ahead portion 54, abody portion 56 and an actuatingtip 58. In an exemplary embodiment,poppet rod 52 is formed out of stainless steel. Of course, other equivalent materials or materials of equivalent characteristics are contemplated forpoppet rod 52, such as non-ferromagnetic materials. Also,poppet rod element 52 comprises a reduced or conically shaped area between actuatingtip 58 andbody portion 56, which has a similar configuration to the walls comprising reducedopening 50 at the poppet rod element and reduced opening interface. Of course, other configurations for the area between the actuatingtip 58 andbody portion 56 are contemplated to be within the scope of the present disclosure. This configuration and the length of actuatingtip 58 provides a portion of the fluid path illustrated inFIGS. 2 and 6 . - A means for sealing supply port opening 48 from reduced
opening 50 is disposed within supply port opening 48. In an exemplary embodiment the means for sealing supply port opening 48 comprises a ball orsphere 60, a biasingspring 62 and aspring retainer 64. Ball orsphere 60 is configured to be moved, actuated, rolled or slid from the position illustrated inFIG. 1 to the position illustrated inFIG. 2 . In an exemplary embodiment,ball 60 is inserted first, thenspring 62 and thenspring retainer 64, which may be press fitted therein to retainball 60 andspring 62 intosupply port 66. - In an alternative embodiment, wherein the valve assembly is used in environments having large supply pressures or designs allowing for large leakage tolerances at the supply port (e.g., low pressure environments) biasing
spring 62 and/orspring 32 can be eliminated. -
Housing 40 also has asupply port 66, a pair ofcontrol ports 68 and a pair of exhaust ports 70 (illustrated in phantom) as they are normal to the plane illustrated byFIGS. 1 and 2 . It is, of course, contemplated that in accordance with alternativeexemplary embodiments housing 40 may have at least one supply port and/or at least one control port or alternatively more than two supply ports and/or more than two control ports. - In accordance with an exemplary embodiment of the present disclosure, and in the normally closed position,
control ports 68 are in fluid communication withexhaust ports 70, wherein the movement of the poppet rod element from the position inFIG. 1 to the position inFIG. 2 causes theexhaust ports 70 to be sealed andcontrol ports 68 are now in fluid communication withsupply port 66. - Referring now to
FIGS. 1 and 3 poppet rod opening 46 is configured to have a plurality offluted openings 72 disposed about the periphery ofpoppet rod opening 46.Openings 72 provide a means for fluid communication betweenexhaust ports 70 andcontrol ports 68 when the poppet rod element is in the position illustrated byFIG. 1 . Openings orchannels 72 may have any configuration sufficient to enable fluid transfer betweenports 68 andports 70. The path of fluid communication is illustrated by the arrows inFIG. 5 , wherein the numerous reference numerals ofFIG. 1 are removed for clarity. Thus, and as illustrated inFIG. 5 fluid may travel intocontrol ports 68, then throughfluted openings 72 into the area defined betweenhead portion 54 andflange portion 42 ofhousing 40 and then ultimately intoexhaust ports 70, when the assembly is in the position illustrated inFIGS. 1 and 5 . Of course, depending on the application and the pressure differential betweenport 70 andports 68 the flow of the fluid may be opposite to the directions shown inFIG. 5 . - Referring back now to
FIG. 3 , opening 46 and fluttedopenings 72 define an inner race for allowingbody portion 56 ofpoppet rod 52 to be slidably received therein while also maintaining the fluid path illustrated inFIG. 5 . This inner race allows the poppet rod to be slid therein while also allowing fluid communication aroundbody portion 56. Of course,body portion 56 is slightly smaller than the inner race. - As an alternative, and as illustrated by the dashed lines in
FIG. 3 , opening 46 does not have any fluted openings andbody portion 56 of poppet rod element is configured to have fluted openings or channels disposed on an exterior surface thereof to allow for the fluid to pass therethrough. In yet another alternative both thebody portion 56 andopening 46 are configured to have openings. Of course, in this embodiment the openings should have different configurations or sizes to allow for fluid transfer as well as movement of the poppet rod element within the opening. - Referring now to
FIGS. 1 and 4 ,supply port opening 48 is also configured to have a plurality offluted openings 74 disposed about the periphery ofsupply port opening 48.Openings 74 provide a means for fluid communication betweensupply port opening 48 andcontrol ports 68 through reducedopening 50 when the poppet rod element is in the position illustrated byFIG. 2 . Openings orchannels 74 may have any configuration sufficient to enable fluid transfer betweenport 66 andport 68. The path of fluid communication is illustrated by the arrows inFIG. 6 wherein the numerous reference numerals ofFIG. 2 are removed for clarity. - Thus, and as illustrated in
FIG. 6 fluid may travel into thesupply port opening 48, throughfluted openings 74 and intocontrol ports 68, when the assembly is in the position illustrated inFIGS. 2 and 6 . Of course, depending on the application and the pressure differential betweensupply port 66 andports 68 the flow of the fluid may be opposite to the directions shown inFIG. 6 . It is also noted that the spring retainer is also configured to allow fluid therethrough by for example, openings disposed therein or alternatively being press fitted into the inner race defined byopenings 74 whereinopenings 74 are disposed about the periphery ofspring retainer 64. In an alternative embodiment, spring retainer is a filter, which may comprise a mesh material adapted to filter the fluid passing through the supply port. - In any of the aforementioned embodiments, the spring retainer or filter is secured by any know securement means including but not limited to the following: press fitting, interference fit, welding (ultrasonically or otherwise) and chemical (e.g., adhesive).
- Referring back now to
FIGS. 1 and 2 , the valve assembly of the present disclosure is illustrated in its normally closed position wherein the ball positioned within supply port opening is biased into the illustrated position by eitherspring 62 or a hydrostatic or hydrodynamic pressure from the fluids in communication withport 66 or alternatively both, which will keep the ball in the position illustrated, whereinopening 50 is sealed byball 60. As illustrated, the surfacearea surrounding opening 50 on the supply port side is chamfered or angled to facilitate the closing or sealing of reducedopening 50 byball 60. Also noted is thatopenings 74 terminate before opening 50 so thatball 60 provides an effective means for sealing of the same. - Referring now to
FIG. 2 , as the coil is energized the plunger is attracted by the primary plate and makes contact withhead portion 54 thereby slidingpoppet rod element 52 to the position illustrated inFIG. 2 . As this occurs actuatingtip 58 makes contact withball 60 and passes through reducedopening 50 in order to moveball 60 to the position illustrated inFIG. 2 . As illustrated, actuatingtip 58 is smaller than opening 50 and is of a sufficient length to moveball 60 to a position wherein fluid fromsupply port 66 may travel throughopenings 74, through opening 50 intoopening 72 and ultimately toports 68. - It is also noted that in this
position exhaust ports 70 are effectively sealed off byhead portion 54 ofpoppet rod element 52. This is due to the configuration ofhead portion 54, which has an outer diameter large enough to coveropenings 72 by engaging a surface ofhead portion 54 with the surface offlange portion 42 comprisingopenings 72. In order to facilitate this closing operation, opening 38 is of a sufficient size to allowhead portion 54 to be inserted therein. In addition,head portion 54 is also configured to be inserted therein byplunger 26. - Accordingly, the poppet rod element provides the dual function of opening or fluidly connecting
supply port 66 withcontrol ports 68 while sealingexhaust ports 70 from opening 72. Thus, a single element (e.g., poppet rod element) provides a means for opening and closing two ports of a three port configuration having two discrete fluid paths. Therefore, movement of the poppet rod element performs the task of closing or opening of the ports and redirecting the flow path of the valve assembly. Accordingly, only two components need to be aligned with each other in order to actuate the three port-two way valve assembly of the present disclosure namely, the poppet rod element and the plunger, which acts upon the head portion of the poppet rod element. This is significantly less than the number of components requiring alignment with each other in order to provide a three port-two way valve assembly. - Also noted is that the path of movement of the poppet rod element required for such an operation is, in accordance with the present disclosure, along the same path, axis or line of movement of the plunger element which will provide the least amount of side loads on the plunger or in other words the load (e.g., movement of the poppet rod element) is in line with the path of travel of the plunger, which is illustrated in the Figures as well as
arrows 76. - In addition, and in accordance with an exemplary embodiment of the
present disclosure plunger 26 andhead portion 54 are arranged to merely make contact with each other (e.g., there is no press fit or securement of the poppet rod to the plunger). Moreover, and since the plunger and the head portion are the only two portions that make contact with each other in order to actuate the poppet rod and thus the valve assembly, there can be a larger tolerance for mis-alignment both perpendicularly and concentrically between the plunger and the poppet rod element, as this is the only interface between the plunger and the poppet rod element and the interface is not a fixed point of securement between the two. Therefore, the present disclosure provides a valve assembly having a configuration that provides a reduced tolerance stack. - Additionally and since there is no press fit between the poppet rod element and the plunger, there is no stress applied to the poppet rod element for securing the two items to each other. Also, and since there is no fixed point of attachment between the two elements, there is no need for pre-calibration of the assembly as in accordance with the present disclosure, the only requirement of the assembly of the present disclosure is that the plunger be actuatable to move the poppet rod the pre-determined distance required to make the head portion contact the flange portion and effectively seal off
exhaust ports 70 by blockingopenings 72. - In addition, and due to this configuration, the major forces applied or stress induced upon
poppet rod element 52 are at the surface of head portion making contact with the surface of the flange portion to closeopenings 72, which effectively is a surface mating with another surface wherein the mating surfaces are larger in area than the contact point or contact line between the ball and the actuating tip of the poppet rod element. In an alternative embodiment, the flat surface ofhead portion 54 is equipped with a washer orgrommet 78, which provides a means for sealingopenings 72 when the poppet rod element is manipulated to the position illustrated inFIGS. 2 and 6 . - Referring now to the forward end of the poppet rod element or actuating
tip 58 that slides through reducedopening 50 and makes contact withball 60, it is noted that in accordance with an exemplary embodiment, and aspoppet rod element 52 is slid to the position illustrated inFIGS. 2 and 6 , actuatingtip 58 pushesball 60 so thatsupply port 66 is in fluid communication withcontrol ports 68 viaopenings tip 58 only pushesball 60 so that this fluid path betweenport 66 andports 68 is enabled. Thus, actuating tip only encounters forces necessary to move ball 60 (e.g., the biasing force ofspring 62 and the pressure of the fluid in communication with supply port 66). There is no stopping force encountered by actuatingtip 58 as the poppet rod element reaches its point of maximum movement or actuation when the flat surface of the head portion contacts the flange portion and effectively sealsopenings 72, wherein the ball is only biased againstactuating tip 58 by the biasing force of the spring and the pressure of the supply port. Therefore, actuating tip can have relatively small cross section enabling it to pass through reducedopening 50 while still allowing fluids to pass therethrough. - It is also noted that the area of the poppet rod element that comprises the body portion to actuating tip interface does not make contact with the
walls comprising opening 50 in order to maintain the fluid path betweensupply port 66 andcontrol ports 68. - It is also noted that the outer configuration of the housing may be varied for insertion of the same into a fluid containing reservoir wherein O-
rings 80 are received withgrooves 82 in order to provide an appropriate seal between the housing and any aperture it may be inserted into. Of course, the configuration of the housing and the number of O-rings may vary. - While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Furthermore, no element, component, or method step in the present disclosure is intended to be dedicated to the public regardless of whether the element, component, or method step is explicitly recited in the claims.
Claims (6)
1. A valve assembly for use with a solenoid having a plunger being actuatable from a first position to a second position, comprising:
a housing, comprising a first port, a second port and a third port and a central opening being defined by a plurality of first channels, a plurality of second channels and a reduced opening disposed between said plurality of first channels and said plurality of second channels;
a movable element disposed within said central opening, said movable element being moved when the plunger moves from the first position to the second position;
wherein said plurality of first channels are disposed on either said housing or a portion of said movable element,
wherein an axis of said central opening is aligned with an axis of said movable element and an axis upon which the plunger moves,
wherein said first port is in fluid communication with said second port via said plurality of first channels when the plunger is in the first position; and
wherein said first port is in fluid communication with said third port via said plurality of second channels, said reduced opening and said plurality of first channels when the plunger is in the second position.
2. The valve assembly as in claim 1 , wherein said movable element comprises a head portion, a main body portion and an actuating tip, wherein said head portion seals said plurality of first channels from said second port when the plunger is in the second position and said actuating tip enables fluid communication between said plurality of first channels and said plurality of second channels.
3. The valve assembly as in claim 1 , wherein said first port comprises a pair of control ports, and said second port comprises a pair of exhaust ports, and said third port is a supply port.
4. (canceled)
5. The valve assembly as in claim 1 , wherein said first port comprises a pair of control ports orthogonally positioned with respect to said central opening and said second port comprises a pair of exhaust ports orthogonally positioned with respect to said pair of control ports, and said third port is a supply port.
6. (canceled)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/004,125 US20050092376A1 (en) | 2003-04-25 | 2004-12-03 | Three port -two way solenoid valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/423,310 US6827102B2 (en) | 2003-04-25 | 2003-04-25 | Three port-two way solenoid valve |
US11/004,125 US20050092376A1 (en) | 2003-04-25 | 2004-12-03 | Three port -two way solenoid valve |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/423,310 Continuation US6827102B2 (en) | 2003-04-25 | 2003-04-25 | Three port-two way solenoid valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050092376A1 true US20050092376A1 (en) | 2005-05-05 |
Family
ID=33299087
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/423,310 Expired - Fee Related US6827102B2 (en) | 2003-04-25 | 2003-04-25 | Three port-two way solenoid valve |
US11/004,125 Abandoned US20050092376A1 (en) | 2003-04-25 | 2004-12-03 | Three port -two way solenoid valve |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/423,310 Expired - Fee Related US6827102B2 (en) | 2003-04-25 | 2003-04-25 | Three port-two way solenoid valve |
Country Status (1)
Country | Link |
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US (2) | US6827102B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220221074A1 (en) * | 2021-01-11 | 2022-07-14 | Waters Technologies Corporation | Active check valve having a moving magnet actuator |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6827102B2 (en) * | 2003-04-25 | 2004-12-07 | Delphi Technologies, Inc. | Three port-two way solenoid valve |
US7240894B2 (en) * | 2003-05-30 | 2007-07-10 | Borgwarner Inc. | Pulse width modulated solenoid |
JP4141375B2 (en) * | 2003-11-07 | 2008-08-27 | 三菱電機株式会社 | 3-way bleed proportional solenoid valve |
DE10356645A1 (en) | 2003-12-01 | 2005-06-23 | Kendrion Binder Gmbh | Proportional valve has magnetic anchor which is closed by pressure or spring when no current flows through coil and opens against force of spring system , allowing proportional fluid flow |
EP1848648B1 (en) * | 2005-02-15 | 2009-05-13 | Reckitt Benckiser (UK) LIMITED | Seal assembly for a pressurised container |
US8127791B2 (en) | 2005-12-21 | 2012-03-06 | Saturn Electronics & Engineering, Inc. | Solenoid operated fluid control valve |
US8746279B2 (en) | 2011-09-14 | 2014-06-10 | Delphi Technologies, Inc. | Pressure control valve |
KR102440010B1 (en) * | 2018-03-21 | 2022-09-05 | 현대모비스 주식회사 | Pressure control valve for vehicle |
Citations (7)
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---|---|---|---|---|
US4949752A (en) * | 1989-05-12 | 1990-08-21 | Chrysler Corporation | Thermally compensated noise control device for a solenoid-actuated valve |
US4998559A (en) * | 1988-09-13 | 1991-03-12 | Coltec Industries Inc. | Solenoid operated pressure control valve |
US5606992A (en) * | 1994-05-18 | 1997-03-04 | Coltec Industries Inc. | Pulse width modulated solenoid |
US5651391A (en) * | 1996-05-06 | 1997-07-29 | Borg-Warner Automotive, Inc. | Three-way solenoid valve |
US5915416A (en) * | 1997-06-18 | 1999-06-29 | Mitsubishi Denki Kabushiki Kaisha | Three way electromagnetic valve |
US6578933B2 (en) * | 2001-04-24 | 2003-06-17 | Delphi Technologies, Inc. | Vehicle brake by wire actuator |
US6827102B2 (en) * | 2003-04-25 | 2004-12-07 | Delphi Technologies, Inc. | Three port-two way solenoid valve |
-
2003
- 2003-04-25 US US10/423,310 patent/US6827102B2/en not_active Expired - Fee Related
-
2004
- 2004-12-03 US US11/004,125 patent/US20050092376A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4998559A (en) * | 1988-09-13 | 1991-03-12 | Coltec Industries Inc. | Solenoid operated pressure control valve |
US4949752A (en) * | 1989-05-12 | 1990-08-21 | Chrysler Corporation | Thermally compensated noise control device for a solenoid-actuated valve |
US5606992A (en) * | 1994-05-18 | 1997-03-04 | Coltec Industries Inc. | Pulse width modulated solenoid |
US5651391A (en) * | 1996-05-06 | 1997-07-29 | Borg-Warner Automotive, Inc. | Three-way solenoid valve |
US5915416A (en) * | 1997-06-18 | 1999-06-29 | Mitsubishi Denki Kabushiki Kaisha | Three way electromagnetic valve |
US6578933B2 (en) * | 2001-04-24 | 2003-06-17 | Delphi Technologies, Inc. | Vehicle brake by wire actuator |
US6827102B2 (en) * | 2003-04-25 | 2004-12-07 | Delphi Technologies, Inc. | Three port-two way solenoid valve |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220221074A1 (en) * | 2021-01-11 | 2022-07-14 | Waters Technologies Corporation | Active check valve having a moving magnet actuator |
US11821530B2 (en) * | 2021-01-11 | 2023-11-21 | Waters Technologies Corporation | Active check valve having a moving magnet actuator |
Also Published As
Publication number | Publication date |
---|---|
US6827102B2 (en) | 2004-12-07 |
US20040211472A1 (en) | 2004-10-28 |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |