Rotary machine with roller controlled vanes

Details Rotary machine with roller controlled vanes Rotary machine with roller controlled vanes

F - Mech Eng,Light,Heat,Weapons

01

C

F01C 1/344 (2006.01) F01C 21/08 (2006.01) F02B 53/02 (2006.01)

Patent

CA 2758851

A rotary machine comprising a stator forming a substantially oval-shaped chamber and a rotor rotatably mounted in the chamber on a central shaft and defining with the stator two cavities at opposite ends of the chamber. Radially slidable vanes are mounted in slots formed in the rotor and each vane has first and second primary rollers and first and second secondary rollers mounted thereon. The first rollers are mounted on a first side edge of the vane and the second rollers are mounted on an opposite side edge. Two roller cam devices are provided on sidewalls of the stator and these devices form primary and secondary camming surfaces for controlling radial movement of the vanes, these surfaces being formed inside the roller cam devices. The camming surfaces are offset from each other in an axial direction and in a radial direction relative to the axis of rotation.

L'invention porte sur une machine tournante comprenant un stator formant une chambre de forme sensiblement ovale, et un rotor monté à rotation dans la chambre sur un arbre central et définissant avec le stator deux cavités à des extrémités opposées de la chambre. Des aubes radialement coulissantes sont montées dans des fentes formées dans le rotor, et chaque aube a des premier et second rouleaux primaires et des premier et second rouleaux secondaires montés sur celle-ci. Les premiers rouleaux sont montés sur un premier bord latéral de l'aube et les seconds rouleaux sont montés sur un bord latéral opposé. Deux dispositifs de came à galet sont disposés sur des parois latérales du stator et ces dispositifs forment des surfaces de came primaires et secondaires pour commander le déplacement radial des aubes, ces surfaces étant formées à l'intérieur des dispositifs de came à galet. Les surfaces de came sont décalées les unes des autres dans une direction axiale et dans une direction radiale par rapport à l'axe de rotation.

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