Device for positioning a rotatable element within a tube
AssigneeCompagnie de Raffinage et de Distribution Total France
InventorsDavid Freychet, Roben Loutaty
Life of this patent
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Abstract
The invention concerns a positioning device for a tube cleaning element rotatably driven by fluid passing through the tube. This is particularly useful for heat exchanger tubes. This device includes an open-frame support member (1) having one or more parts (8a, 8b) (preferably of generally cylindrical shape) for mounting on the outside on one end of said tube, and further includes a spindle (2) mounted for rotation with respect to said frame (1) along the axis of the end of said tube and adapted to be fastened to said rotatable element.
Claims13
A device mountable at the end of a tube of predetermined size and having a circular cross-section for rotatably positioning in the tube a movable element shaped to be driven in rotation within the tube by the action of a fluid flowing through said tube, comprising an open frame member having a base portion in the shape of a longitudinally split circular cylinder and adapted to be secured to the outside of a protruding end of said tube and an upper open support portion shaped to extend across the axis of said tube when mounted thereon without substantially impeding the flow of fluid past said open frame member relative to said tube, and a spindle rotatably mounted on said support portion for rotation along the axis of the end of said tube and adapted to be fastened to one end of said movable element positioned in said tube.
A device mountable at the end of a tube of predetermined size for rotatably positioning in the tube a movable element shaped to be driven in rotation within the tube by the action of a fluid flowing through said tube, comprising an open frame member having a base portion adapted to be secured to the outside of a protruding end of said tube and an upper open support portion shaped to extend across the axis of said tube when mounted thereon without substantially impeding the flow of fluid past said open frame member relative to said tube, and a spindle rotatably mounted on said support portion for rotation along the axis of the end of said tube and adapted to be fastened to one end of said movable element positioned in said tube, where said frame member has the shape of a stirrup forming a U with a central part and pair of parallelly extending arms, the ends of said arms being of segmented cylindrical shape and said central part having an orifice for holding the spindle.
Dependencies are inferred from the claim text.