Cartridge with hard material plates for ganged control valves

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

Patent

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Details

F16K 11/04 (2006.01) F16K 11/078 (2006.01)

Patent

CA 2123301

A cartridge which uses as control members hard material plates (19, 23), and intended for a single-control faucet of the type where both the water inlets and outlets are positioned at the bottom (6) of the cartridge. This cartridge comprises a water-tight shell (1-2) and sealing means (26, 28) interposed between the internal space (0) of the cartridge and the operating members (30, 32) of the cartridge, which are intended to project outside the faucet; and includes communication means (33, 33') that link the internal space (0) of the cartridge with a passage (12) constituting the outlet for mixed water or the intake for the eater to be mixed. In this cartridge, the internal space (0) always receives a pressure equal to the counter-pressure at delivery or, respectively, to the intake pressure, and this pressure is applied in all directions to the movable plate (23) of the cartridge, thus avoiding the disadvantages usually deriving from the modification, due to the counter-pressure at delivery or the intake pressure, of the pressure present between the fixed plate (19) and the movable plate (23) of the cartridge, modification that gives rise to the possible separation of these two plates.

A B R ? G ? Une cartouche faisant emploi, comme organes de réglage, de plaques en matériau dur (19, 23), et destinée à un robinet monocommande du type dans lequel soit les arrivées, soit les sorties pour l'eau, sont disposées en correspondance du fond (6) de la cartouche. Cette cartouche comporte une enveloppe étanche (1- 2), elle comporte des moyens d'étanchéité (26, 28) interposés entre l'espace intérieur (0) de la cartouche et les organes de manoeuvre (30-32) de la cartouche, qui sont prévus pour faire saillie à l'extérieur du robinet, et comporte des moyens de communication (33, 33') qui font communiquer l'espace intérieur (0) de la cartouche avec un passage (12) constituant la sortie pour l'eau mélangée ou bien l'arrivée pour l'eau à mélanger. Dans cette cartouche l'espace intérieur (0) prend toujours une pression égale à la contrepression de débit ou, respectivement, à la pression d'alimentation, et cette pression est appliquée en toutes directions à la plaque mobile (23) de la cartouche, ainsi évitant les inconvénients qui se vérifient d'habitude du fait que la contrepression de débit, ou la pression d'alimentation, modifie la pression existante entre la plaque fixe (19) et la plaque mobile (23) de la cartouche, avec la possibilité d'une séparation entre ces deux plaques.

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