Improved core design for electromagnetically actuated valve

Details Improved core design for electromagnetically actuated valve Improved core design for electromagnetically actuated valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/06 (2006.01) F01L 9/04 (2006.01) F01L 25/08 (2006.01)

Patent

CA 2165468

An improved electromagnetically actuated valve (10) is disclosed. The improved valve design includes a layer of structurally stable, non-magnetic material (52), preferably Kapton or Chrome, disposed intermediate the core element (16) and the electromagnetic element (32, 34) of the valve, and a core element and electromag- netic element fabricated from a high electrical resistive iron material. The layer of non-magnetic structurally stable material and high resistance core element serve to eliminate the hysteresis effect in the magnetic force of the valve. The core element may also include ra- dially extending (50) or axially extending (48) perfo- rations through the core element. The axial and radial perforations serve to reduce the weight of the core de- sign and the axial perforations serve to reduce the effect of the air spring created in the gap as the core element approaches the electromagnetic element during opera- tion of the valve.

Une vanne électromagnétique améliorée (10) est décrite. Ce modéle de vanne amélioré comprend une couche d'un matériau non magnétique (52) de structure stable, de préférence du Kapton ou du chrome, disposée entre l'élément central (16) et l'élément électromagnétique (32, 34) de la vanne, ainsi qu'un élément central et un élément électromagnétique fabriqués à partir de fer à résistance électrique élevée. La couche de matériau non magnétique de structure stable et l'élément central à resistance élevée permettent de supprimer l'effet d'hystérésis de la force magnétique de la vanne. L'élément central peut également être traversé par des perforations radiales (50) ou axiales (50). Ces perforations axiales et radiales permettent de réduire le poids de l'élément central, et les perforations axiales permettent de réduire l'effet de ressort pneumatique crée dans la fente tandis que l'élément central s'approche de l'élément électromagnétique au cours du fonctionnement de la vanne.

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