Direct acting hydraulic trip block with majority voting

Details Direct acting hydraulic trip block with majority voting Direct acting hydraulic trip block with majority voting

G - Physics

05

B

G05B 19/43 (2006.01) F01D 21/18 (2006.01)

Patent

CA 2662456

A direct acting hydraulic voting trip block defines three separate paths between an inlet and an outlet port. Each path is intersected by a valve cylinder. Valve pistons in each valve cylinder are configured, in the activated position, to block two of thee different paths. As long as at least two of the pistons are in the activated position, communication between the inlet and outlet ports is prevented, thus providing a hydraulic majority voting logic valve system.

Un bloc déclencheur hydraulique électif à action directe définit trois trajectoires distinctes entre un orifice d'entrée et un orifice de sortie. Chaque trajectoire est coupée par un cylindre de valve. Des pistons de valve dans chaque cylindre de valve sont configurés, dans la position active, pour bloquer deux des trois trajectoires différentes. Tant qu'au moins deux des pistons sont dans la position active, une communication entre les orifices d'entrée et de sortie est empêchée, fournissant ainsi un système de valve hydraulique à logique élective majoritaire.

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