Linear valve actuator

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 31/02 (2006.01) F16K 31/04 (2006.01)

Patent

CA 2450459

In a preferred embodiment, a linear actuator including: a rotary electric motor; a shaft (46) extending into a rotor (44) of the rotary electric motor and extendable into a body extension (30) of the valve; the shaft (46) having an externally threaded portion (36) extending into the rotor (44) and in engagement with a complimentary threaded internal surface of the rotor (44); and the shaft (46) having an externally splined portion (34) extendable into the body extension (30) of the valve and engageable with a complementary splined internal surface (110) of the extension (30) of the valve.

Dans un mode de réalisation préféré, la présente invention concerne un actionneur linéaire comportant: un moteur électrique rotatif; un arbre (46) disposé à l'intérieur d'un rotor (44) du moteur électrique rotatif et susceptible de se déployer à l'intérieur d'un prolongement du corps (30) de la vanne. L'arbre (46) possède une partie de filetage externe (36) s'étendant à l'intérieur du rotor (44) et en contact avec une surface interne filetée complémentaire du rotor (44), de même qu'il possède une partie cannelée externe (34) susceptible de se déployer dans le prolongement du corps (30) de la vanne et d'entrer en contact avec une surface interne cannelée complémentaire (110) du prolongement (30) de la vanne.

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