发明名称 |
SOLENOID OPERATED FLUID PRESSURE REGULATOR |
摘要 |
A fluid pressure regulating valve having a two-stage high and low flow rate control capability combined with a natural-LP gas control pressure changeover uses a spring biased pressure regulating diaphragm controlling a fluid through an orifice defined by a valve seat. A solenoid valve armature is attached to a spring providing the spring bias for the diaphragm and is arranged to be actuated by a selectively energizable solenoid coil. An extension of the armature is captured by a step regulator assembly which is threaded into a valve body containing the regulating diaphragm. The high fire and low fire adjustments in the step regulator assembly are on non-moving threaded members attached to the regulator assembly and bearing on the extension of the armature to vary the energized and deenergized position of the solenoid armature. A positive temperature coefficient material heated by an energizing current for the solenoid operating the valve is located in an energizing circuit of the solenoid coil to provide a change in the energization of the solenoid coil after a threshold temperature of the material is reached. The natural-LP gas pressure changeover utilizes a cam encircling the extension of the armature and a stop means resting on the cam while supporting the end of the armature extension. A screw driver slot is provided for varying the position of the stop member on the cam surface to provide stable natural and LP gas operating positions. |
申请公布号 |
EP0220570(B1) |
申请公布日期 |
1990.07.25 |
申请号 |
EP19860114028 |
申请日期 |
1986.10.09 |
申请人 |
HONEYWELL INC. |
发明人 |
DIETIKER, PAUL;NELSON, MARVIN D. |
分类号 |
G05D16/06;G05D16/20 |
主分类号 |
G05D16/06 |
代理机构 |
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