Rotor for a vane pump, made of plastic material reinforced by metallic foil
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United States of America Patent
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-
Aug 21, 2012
Grant Date -
Apr 23, 2009
app pub date -
Apr 3, 2007
filing date -
Apr 11, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotor (1-3) molded of plastic material, intended for rotary installation in a cavity of a pump body and for reception of one or more vanes forming the pumping members, characterized in that at least a part of the surfaces thereof, intended to undergo sliding displacements against other pump members, is covered by at least one metallic foil (4) caused to adhere to the subjacent surface of plastic material. The metallic foil can consist of a steel sheet or an aluminum alloy sheet, intended for reducing the resistances to the sliding as well as for mechanically reinforcing the rotor. The metallic foil can be fastened to the plastic material body (1) of the rotor by a co-molding operation, or it can be mechanically fixed to the body (1) of the rotor molded of plastic material.
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