Fluid control valve device

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

Patent

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Details

F16K 47/04 (2006.01) F16K 3/24 (2006.01)

Patent

CA 2590017

Certain embodiments of a fluid control valve 100 include one or more ceramic components that operate substantially free of tensile stress concentrations along the control surfaces. In some embodiments, a fluid control valve 100 includes a ceramic plug 140 having a set of longitudinal grooves 142 milled in the cylindrical surface 141 of the plug to define control surfaces 143. The plug is disposed in an internal longitudinal cavity 120 of the valve body 110 such that the fluid flows over the plug's control surfaces in a direction substantially parallel to the control surfaces. The ceramic plug and other ceramic components may be manufactured using relatively simple machining techniques to reduce the overall production costs.

Certains modes de réalisation de vanne de régulation de fluide (100) comprennent un ou plusieurs composants céramiques qui fonctionnent pratiquement sans concentration d'effort de traction le long des surfaces de commande. Dans certains modes de réalisation, une vanne de régulation de fluide (100) comprend un bouchon céramique (140) comportant un ensemble de rainures longitudinales (142) fraisées dans la surface cylindrique (141) du bouchon pour définir des surfaces de commande (143). Le bouchon est disposé dans une cavité longitudinale interne (120) du corps de vanne (110) de sorte que le fluide s'écoule sur les surfaces de commande du bouchon dans une direction sensiblement parallèle aux surfaces de commande. On peut fabriquer le bouchon céramique et d'autres composants céramiques en utilisant des techniques d'usinage relativement simples pour réduire les coûts de production globaux.

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