A solenoid valve includes a housing defining an interior cavity and at least a first and second port coupled to the housing and having associated passages configured to be in fluid communication with the interior cavity. The solenoid valve further includes a valve seat disposed about an opening betw
A solenoid valve includes a housing defining an interior cavity and at least a first and second port coupled to the housing and having associated passages configured to be in fluid communication with the interior cavity. The solenoid valve further includes a valve seat disposed about an opening between the first and second ports and interior cavity. The valve seat is integrally formed with the housing, such that the housing and valve seat are a single unitary structure. The solenoid valve further includes a bobbin supporting a coil and an armature and seal movably disposed within the bobbin and relative to the coil. The armature and seal are moveable between an open position and a closed position relative to the valve seat, wherein, in the closed position, the seal sealingly engages with the valve seat.
대표청구항▼
1. A solenoid valve comprising: a housing defining an interior cavity and at least one valve seat;a first valve body configured to be secured to said housing, said first valve body comprising a first port;a second valve body configured to be secured to said housing, said second valve body comprising
1. A solenoid valve comprising: a housing defining an interior cavity and at least one valve seat;a first valve body configured to be secured to said housing, said first valve body comprising a first port;a second valve body configured to be secured to said housing, said second valve body comprising at least a second port, wherein said first and said second port each include an associated passage configured to be in fluid communication with said interior cavity of said housing through said at least one valve seat;a bobbin disposed within said interior cavity of said housing, said bobbin supporting a coil;an armature having a seal coupled to a portion thereof and disposed within said bobbin and relative to said coil, said armature and seal configured to move from a first position, unsealed with an opening of said valve seat, to a second position sealingly engaged with said opening of said valve seat when said coil is energized; anda bracket configured to retain said bobbin, said coil, said armature, and said armature seal within said internal cavity of said housing, wherein said bracket is further configured to complete a magnetic circuit and contact said armature only when said solenoid valve is energized. 2. The solenoid valve of claim 1, wherein: when in said first position, said associated passages of said first and second ports are in fluid communication with one another and said interior cavity of said housing; andwhen in said second position, said associated passages of said first and second ports are not in fluid communication with one another. 3. The solenoid valve of claim 1, further comprising an electrical connector configured to receive signals from an electrical control unit (ECU), wherein at least one of said signals energizes said coil and causes said armature and seal to move to said second position. 4. The solenoid valve of claim 1, wherein said housing and said at least one valve seat are a unitary structure. 5. The solenoid valve of claim 1, wherein said housing and said at least one valve seat comprise the same material. 6. The solenoid valve of claim 5, wherein said housing and said at least one valve seat comprise a polymeric material. 7. The solenoid valve of claim 1, wherein said housing and said at least one valve seat comprises different materials. 8. A system comprising: a wastegate; anda solenoid valve coupled to said wastegate and configured to provide vacuum or pressure to an actuator of said wastegate to control operation of said wastegate, said solenoid valve comprising: a housing defining an interior cavity and at least one valve seat;a first valve body configured to be secured to said housing, said first valve body comprising a first port;a second valve body configured to be secured to said housing, said second valve body comprising at least a second port, wherein said first and said second port each include an associated passage configured to be in fluid communication with said interior cavity of said housing through said at least one valve seat;a bobbin disposed within said interior cavity of said housing, said bobbin supporting a coil;an armature having a seal coupled to a portion thereof and disposed within said bobbin and relative to said coil, said armature and seal configured to move from a first position, unsealed with an opening of said valve seat, to a second position sealingly engaged with said opening of said valve seat when said coil is energized; anda bracket configured to retain said bobbin, said coil, said armature, and said armature seal within said internal cavity of said housing, wherein said bracket is further configured to complete a magnetic circuit and contact said armature only when said solenoid valve is energized. 9. The system of claim 8, wherein: when in said first position, said associated passages of said first and second ports are in fluid communication with one another and said interior cavity of said housing; andwhen in said second position, said associated passages of said first and second ports are not in fluid communication with one another. 10. The system of claim 8, wherein one of said first and second ports is coupled to said wastegate and configured to provide vacuum or pressure to said actuator of said wastegate based on said position of said armature and seal relative to said at least one valve seat. 11. The system of claim 10, wherein said wastegate is coupled to a turbocharger and configured to regulate maximum boost pressure output by said turbocharger based on vacuum or pressure received from said solenoid valve. 12. The system of claim 8, further comprising an electrical control unit (ECU) configured to cause said coil to be energized and to cause said armature and said seal to move to said second position. 13. The system of claim 8, wherein said housing and said at least one valve seat are a unitary structure. 14. The solenoid valve of claim 1, wherein said bracket is further configured to complete said magnetic circuit only when said armature seal is in sealing engagement with said valve seat. 15. The solenoid valve of claim 1, wherein said bracket is at least partially disposed about a perimeter of said valve seat. 16. The solenoid valve of claim 15, wherein said bracket extends above an opening in said valve seat. 17. The solenoid valve of claim 15, wherein said bracket at least partially surrounds said valve seat. 18. A system comprising: a turbocharger;a wastegate coupled to said turbocharger and configured to regulate maximum boost pressure output by said turbocharger;a solenoid valve coupled to said wastegate and configured to provide vacuum or pressure to an actuator of said wastegate to control operation of said wastegate, said solenoid valve comprising: a housing defining an interior cavity and at least one valve seat;a first valve body configured to be secured to said housing, said first valve body comprising a first port;a second valve body configured to be secured to said housing, said second valve body comprising at least a second port, wherein said first and said second port each include an associated passage configured to be in fluid communication with said interior cavity of said housing through said at least one valve seat;a bobbin disposed within said interior cavity of said housing, said bobbin supporting a coil;an armature having a seal coupled to a portion thereof and disposed within said bobbin and relative to said coil, said armature and seal configured to move from a first position, unsealed with an opening of said valve seat, to a second position sealingly engaged with said opening of said valve seat when said coil is energized; anda bracket configured to retain said bobbin, said coil, said armature, and said armature seal within said internal cavity of said housing, wherein said bracket is further configured to complete a magnetic circuit and contact said armature only when said solenoid valve is energized; andan electrical control unit (ECU) configured to control movement of said armature and seal relative to said valve seat based on one or more operational parameters of said system. 19. The system of claim 18, wherein: when in said first position, said associated passages of said first and second ports are in fluid communication with one another and said interior cavity of said housing; andwhen in said second position, said associated passages of said first and second ports are not in fluid communication with one another. 20. The system of claim 18, wherein said housing and said at least one valve seat are a unitary structure.
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이 특허에 인용된 특허 (10)
Deckard Mitchel R. ; Frohberg David L. ; Houtz Phillip J. ; Kocian Charles J. ; Lantz Kevin A. ; Maddock James B. ; Uhland Gregg W., Apparatus and method for utilizing a learned wastegate control signal for controlling turbocharger operation.
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