Valves and valve actuation – Electrically actuated valve – Solenoid having plural coils
Patent
1989-11-20
1990-08-28
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Solenoid having plural coils
25112916, 25112918, 335246, F16K 3106
Patent
active
049519166
ABSTRACT:
Herein disclosed a disc type electromagnetic valve which is disposed in the passage of a fluid represented by pressurized gases or air for controlling the flow of the fluid. In a casing at the back of a stator, there is formed a chamber in which a diaphragm is arranged. This diaphragm has its radially inner side connected to either a movable receiver of a spring for biasing an armature apart from the attracting surface of the stator or the armature. The chamber at the back of the diaphragm is caused to communicate with a communication passage of the pressurized fluid through a passage hole which extends through the armature and a valve member. When the pressure of the fluid exerted upon the valve member fluctuates, the diaphragm is moved to automatically adjust the seating force of the valve member against a valve seat.
REFERENCES:
patent: 4673163 (1987-06-01), Kushida et al.
patent: 4677327 (1987-06-01), Kishida et al.
patent: 4678160 (1989-07-01), Yamada et al.
Kanameda Yasumasa
Kushida Takeo
Diesel Kiki Co. Ltd.
Nields Henry C.
Rosenthal Arnold
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