|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/014; 137/59617; 137/62526|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 6|
A solenoid operated exhaust bleed type pressure control valve assembly providing a proportional pressure control signal over the full range of solenoid operating current. A poppet valve member is connected to the solenoid armature and closes against a valve seat in the control signal port pressure chamber to prevent flow through the valve seat to the exhaust (bleed) ports. This results in very low or reduced leakage at minimum pressures. The poppet valve contacts a projection on a spool valve for effecting concurrent movement therewith for valving a supp...
1. A solenoid operated valve assembly for variable pressure bleed proportional control comprising:(a) a valve body having a valving bore with a valving spool moveably disposed therein and an inlet port communicating with said bore and a control pressure outlet port communicating with said bore and axially spaced from said inlet port, said bore having an end wall with an aperture therethrough and a valve seat formed about said aperture on the side of said wail opposite said bore; (b) an exhaust port communicating with said valve seat; (c) a solenoid coil ...