| 摘要 |
<p>1,270,898. Valves. ROSS OPERATING VALVE CO. 14 Oct., 1970 [12 Nov., 1969], No. 48855/70. Heading F2V. Solenoid valve, comprises a C-shaped core 25 and a T-shaped armature 37, both being of laminated construction. A coil 24 adjacent the core surrounds at least part of the leg portion of the armature, the arms of the armature being disposed outside the ends of the core. Springs 52, 53 urge the arm end of the armature away from the core. Poppet type valves 42, 43 are arranged at opposite ends of the armature. As shown, the valve connects a working port 14 selectively with an inlet port 13 or exhaust port 15, the upper position of the armature being the energized condition. The valve may alternatively be arranged to be normally open, with port 15 as inlet and port 13 as exhaust, or as a two-way normally closed or open valve, respectively with port 15 blocked and port 13 as inlet, or with port 13 blocked and port 15 as inlet. The end of the core includes shading coils 38. The top valve member 43 may be supported by a spring 45, bore fast with the armature. The valve has an additional manual actuator comprising a rotatable shaft 58 having a cam flat engageable with the armature as shown.</p> |
