Variable bandwidth striated charge for use in a rotary vane pumping machine
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United States of America Patent
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May 14, 2002
Grant Date -
N/A
app pub date -
Aug 2, 2000
filing date -
Aug 2, 2000
priority date (Note) -
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Abstract
A rotary vane combustion engine is provided that has a plurality of vane cells. This rotary vane combustion engine includes a rotor having a plurality of vanes; a stator enclosing the rotor to form a plurality of vane cells between the plurality of vanes; one or more intake ports for providing intake charge to the vane cells; one or more exhaust ports for removing exhaust gas from one of the vane cells; and a variable bandwidth fuel-air source connected to at least one of the intake ports for providing a discrete band of mixed fuel and air having a desired axial width to each of the plurality of vane cells. By providing a discrete band of fuel and air to each of the vane cells, this rotary vane combustion engine will allow the machine or engine to run at lower power without requiring it to run a vacuum to lower the density of mixed fuel and air. As a result, vacuum pumping losses can be substantially eliminated and the machine or engine can operate more efficiently.
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