IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0458660
(2003-06-10)
|
발명자
/ 주소 |
- Gnadinger, Errin Whitney
- Kappler, Jerrod Aaron
- Broniak, Jay Andrew
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
6 |
초록
▼
The present invention comprises a diaphragm type solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow. The valve assembly has a housing, a solenoid, and a magnetized cylindrical armature engagingly coupled to the solenoid and residing within the hollow cent
The present invention comprises a diaphragm type solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow. The valve assembly has a housing, a solenoid, and a magnetized cylindrical armature engagingly coupled to the solenoid and residing within the hollow center of the solenoid. The armature further has a spring affixed to one end of the armature and affixed to the end of the solenoid, wherein the spring and armature are capable of linear motion within the fluid chamber of the valve housing and within the cylindrical plunger guide of the solenoid. The linear motion is controlled by the magnetic field of the solenoid and the spring so as to enable the magnetized armature to abut against the orifice fluid exit of the orifice plate to prevent fluid flow there-through. The valve assembly further comprises a solenoid driver adapted to generate a pulse width modulated signal having two voltage levels other than zero volts, so as to control valve operation, wherein the first voltage level is to initiate movement of the magnetized armature, and the second voltage level is to hold the magnetized armature in the energized position.
대표청구항
▼
1. A diaphragm type solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow, said valve assembly having a housing a solenoid, a solenoid end, said valve assembly comprising:a magnetized cylindrical armature engagingly coupled to said solenoid and residing with
1. A diaphragm type solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow, said valve assembly having a housing a solenoid, a solenoid end, said valve assembly comprising:a magnetized cylindrical armature engagingly coupled to said solenoid and residing within the hollow center of said solenoid, said armature comprising a rare earth magnet and further having a spring between said armature and an end of said solenoid, wherein said spring and armature are capable of linear motion within the fluid chamber of said valve housing and within the cylindrical plunger guide of said solenoid, said linear motion being controlled by the magnetic field of said solenoid and said spring so as to enable said magnetized armature to abut against the orifice fluid exit of the orifice plate to prevent fluid flow there-through; and a solenoid driver adapted to generate a pulse width modulated signal having two voltage levels other than zero volts, so as to control valve operation, wherein the first voltage level is to initiate movement of the magnetized armature, and wherein the second voltage level is to hold the magnetized armature in the energized position. 2. The solenoid assembly as recited in claim 1, wherein said magnetized armature is metal plated.3. The solenoid assembly, as recited in claim 1, wherein said magnetized armature has hysterises that enables the required holding voltage of said solenoid to be less than the required pull in voltage.4. The solenoid assembly as recited in claim 1, wherein said spring constant is predetermined so that the resonant frequency of the spring, armature, system is in a range from about 50 to about 150 hertz.5. The solenoid assembly as recited in claim 4, wherein said predetermined spring constant is about 19.1 grams/cm.6. A solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow, comprising:a valve housing having a housing fluid inlet fluidly coupled to a fluid chamber therein, said valve housing also having a fluid outlet, fluidly coupled to said fluid chamber and having a seal surface within said fluid chamber so as to prevent fluid from traveling from said fluid inlet to said fluid outlet; a diaphragm having at least one diaphragm fluid inlet hole and having a seat and having a fluid channel, said diaphragm engagingly coupled to said valve housing, wherein said seat is further adapted to form a fluid tight seal with said seal surface, thereby enabling said diaphragm to prevent fluid from traveling from said fluid inlet to said fluid outlet; an orifice plate having an orifice fluid inlet and an orifice fluid exit, wherein said orifice is coupled to said diaphragm such that fluid flows within said diaphragm through said orifice fluid inlet and out of said diaphragm through said orifice fluid exit; a solenoid having a cylindrical plunger guide and having an end, said solenoid mechanically coupled to said valve housing; and a magnetized cylindrical armature engagingly coupled to said solenoid and residing within the hollow center of said solenoid, said armature comprising a rare earth magnet and further having a spring affixed to one end of said armature and affixed to the end of said solenoid, wherein said spring and armature are capable of linear motion within the fluid chamber of said valve housing and within the cylindrical plunger guide of said solenoid, said linear motion being controlled by the magnetic field of said solenoid and said spring so as to enable said magnetized armature to abut against the orifice fluid exit of the orifice plate to prevent fluid flow therethrough; wherein said solenoid requires a pull in voltage so as to initiate movement of said magnetized armature from a stationary position and wherein said solenoid requires a holding voltage so as to hold said magnetized armature at a position after the initial movement. 7. The solenoid assembly as recited in claim 6, wherein said magnetized armature is metal plated.8. The solenoid assembly, as recited in claim 6, wherein said magnetized armature has hysterises that enables the required holding voltage of said solenoid to be less than the required pull in voltage.9. The solenoid assembly, as recited in claim 6, wherein said spring constant is predetermined so that the resonant frequency of the spring, armature, system is in a range from about 50 to about 150 hertz.10. The solenoid assembly as recited in claim 9, wherein said predetermined spring constant is about 19.1 grams/cm.11. A diaphragm type solenoid fluid valve assembly of the class used in the on/off control of pressurized fluid flow, said valve assembly having a housing a solenoid, a solenoid end, said valve assembly comprising:a magnetized cylindrical armature engagingly coupled to said solenoid and residing within the hollow center of said solenoid, said armature comprising a rare earth magnet and further having a spring between said armature and an end of said solenoid, wherein said spring and armature are capable of linear motion within the fluid chamber of said valve housing and within the cylindrical plunger guide of said solenoid, said linear motion being controlled by the magnetic field of said solenoid and said spring so as to enable said magnetized armature to abut against the orifice fluid exit of the orifice plate to prevent fluid flow there-through; and a solenoid driver adapted to generate a pulse width modulated signal having two voltage levels other than zero volts, so as to control valve operation, wherein the first voltage level is to initiate movement of the magnetized armature, the second voltage level is to hold the magnetized armature in the energized position, and said spring has a spring constant that is predetermined so the resonant frequency of the spring, armature, system is in a range from about 50 to about 150 hertz.
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