Device of a pair of claw-type rotors having same profiles
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United States of America Patent
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Nov 18, 2014
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Mar 13, 2013
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Oct 15, 2012
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Abstract
The present invention is to provide a device of a pair of claw-type rotors having same profiles, the device includes a defined rotor and a conjugate rotor intermeshing with and conjugating to each other. The defined rotor includes a first claw having a cross-section profile having an epicycloid, a first arc, a second arc, a third arc, and a fourth arc all connected together in sequence in a counterclockwise direction. The first, second, third, and fourth arcs are connected with slope continuity, whereby locations of centers, values of radiuses and arc angles of the second and third arcs are capable of being defined in accordance with the slope continuity and geometric relations between the first and fourth arcs. The conjugate rotor has a first claw having a cross-section profile generated by utilizing a conjugate curve corresponding to the first claw of the defined rotor.
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