SYMMETRICAL VANE PUMP APPARATUS AND METHOD
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United States of America Patent
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Issued Date -
Mar 7, 2013
app pub date -
May 24, 2012
filing date -
Nov 26, 2009
priority date (Note) -
Abandoned
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Abstract
The invention relates to a vane cell pump (1) comprising an electrical drive unit with an electric motor and a motor shaft (6), a pump chamber (2) that connects to the electrical drive unit and has a pump ring (3), and also a rotor (4) that is arranged concentric to the motor shaft (6) within the pump chamber (2) and is in active connection with the motor shaft (6), wherein the rotor (4) has a number of guide slots (40) that extend inward from the outer circumference of the rotor and in each of which a vane (5) is arranged in a moveable manner with two vane ends (50, 51) opposite each other. The vane ends (50, 51) of each vane (5) have a mirror-symmetric design relative to the transverse center plane of the vane.
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