Rotary hydraulic machine and controls

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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Details

F04B 49/00 (2006.01) F04B 1/30 (2006.01)

Patent

CA 2554798

A variable capacity hydraulic machine has a rotating group located within a casing and a control housing secured to the casing to extend across and seal an opening in the casing. The control housing accommodates a control circuit and a pair of sensors to sense change in parameters associated with the rotating group. One of the sensors is positioned adjacent the barrel on the rotating group to sense rotational speed and the other senses displacement of the swashplate. The control housing accommodates a control valve and accumulator to supply fluid to the control valve.

La présente invention a trait à une machine hydraulique rotative à capacité variable comportant un bloc rotatif situé au sein d'un caisson et un boîtier de commande solidaire du caisson pour s'étendre sur une ouverture dans le caisson et l'obturer. Le boîtier de commande renferme un circuit de commande et une paire de capteurs pour la détection d'une modification de paramètres associés au bloc rotatif. Un des capteurs est positionné adjacent au cylindre sur le bloc rotatif pour détecter la vitesse de rotation et l'autre détecte le déplacement du plateau oscillant. Le boîtier de commande renferme un clapet de commande et un accumulateur pour alimenter en fluide le clapet de commande.

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