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Fluid valves suitable for manufacture as a miniature poppet valve assembly. The valves include an upper pole piece, a lower pole piece and an armature, all formed of magnetic material. The upper and lower pole pieces are permanently joined such as by a press fit to entrap an electromagnetic actuator

Fluid valves suitable for manufacture as a miniature poppet valve assembly. The valves include an upper pole piece, a lower pole piece and an armature, all formed of magnetic material. The upper and lower pole pieces are permanently joined such as by a press fit to entrap an electromagnetic actuator coil and form the magnetic circuit for a moveable armature assembled therein. A valve seat member is molded to, presses, snaps or barbs onto the lower pole piece entrapping the armature and armature return spring to complete the assembly. Use of intended permanent assemblies and use of the parts of the magnetic circuit as the valve outer housing or case allows realization of valves in relatively smaller sizes and capable of relatively higher speeds and frequencies of operation than could be practically provided using valves of other designs or using other assembly techniques.

대표청구항 ▼

Fluid valves suitable for manufacture as a miniature poppet valve assembly. The valves include an upper pole piece, a lower pole piece and an armature, all formed of magnetic material. The upper and lower pole pieces are permanently joined such as by a press fit to entrap an electromagnetic actuator

Fluid valves suitable for manufacture as a miniature poppet valve assembly. The valves include an upper pole piece, a lower pole piece and an armature, all formed of magnetic material. The upper and lower pole pieces are permanently joined such as by a press fit to entrap an electromagnetic actuator coil and form the magnetic circuit for a moveable armature assembled therein. A valve seat member is molded to, presses, snaps or barbs onto the lower pole piece entrapping the armature and armature return spring to complete the assembly. Use of intended permanent assemblies and use of the parts of the magnetic circuit as the valve outer housing or case allows realization of valves in relatively smaller sizes and capable of relatively higher speeds and frequencies of operation than could be practically provided using valves of other designs or using other assembly techniques. 428/317.5; US-4307203, 19811200, Blount, 521/136; US-4377646, 19830300, Blount, 521/154; US-4395453, 19830700, Lines et al., 428/215; US-4401707, 19830800, Bailey et al., 428/166; US-4671471, 19870600, Patmont, 244/123; US-4692477, 19870900, Jacobina, 264/046.4; US-4693926, 19870900, Kowalski et al., 428/204; US-4774794, 19881000, Grieb, 052/309.12; US-4791148, 19881200, Riley et al., 521/159; US-4804425, 19890200, Hoffmann et al., 156/324; US-5057545, 19911000, Muhl et al., 521/103; US-5251849, 19931000, Torres, 244/117.R; US-5604266, 19970200, Mushovic, 521/122; US-5711492, 19980100, Cheladze, 241/220; US-5985362, 19991100, Specht et al., 264/046.4; US-6030559, 20000200, Barry et al., 264/257; US-6167624, 20010100, Lanahan et al., 264/142; US-RE37095, 20010300, Glorioso et al., 264/045.3