PULSE-FREE DEVICE FOR UNLOCKING OF SPACECRAFT MOVING ELEMENTS Russian patent published in 2014 - IPC B64G1/64 B64C1/14 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to space engineering. Proposed device comprises case with the main and auxiliary actuators composed of reciprocating cylinders and spring-loaded pawl with its pin. Discs of isolation material are fitted on said reciprocating cylinders and have cut-outs for winding of wire made of material with shape memory for voltage to be fed to wire ends locked at extreme discs of every cylinder. Note here that one of extreme discs is fixed relative to reciprocating cylinder while another one is fixed relative to the case. Return spring is fitted inside every reciprocating cylinder, its one end being secured to the case and opposite end interacting with reciprocating cylinder. Coaxial bores to accommodate balls are made in the case and yokes covering the case on both sides. Cut-outs are made in said cylinders and shifted relative to coaxial bores. Note here that rocker slides on spring-loaded pawl interacting by its ends with ledges made at said yokes. Spring is arranged between the case and yokes, on both sides.

EFFECT: ruled out impact pulse at operation of pyro-means.

10 dwg