Patent ID: 7594323
Filing Date: 2009-09-29
Classification: F04C,Y10T

Abstract:
1. A method for designing single-lobe or double-lobe rotors which enable a defined rotor and a conjugate rotor intermeshing and conjugating to each other and by parameterized sets to generate curve portions of half two lobes of the defined rotor including a curve E, an arc A, an arc B, an arc F, an arc C, an arc G and a line Y, and further symmetrically imaging the curve portions to form the defined rotor with single-lobe or double-lobe, a conjugate rotor with single-lobe or double-lobe which is formed through a conjugate curve that profiled respectively by each arc and curve of the single-lobe or double-lobe of the defined rotor, wherein a method of the curve portions of half two lobes of the defined rotor comprising: designating a maximum radius R of the defined rotor and a width D of the defined rotor, a pitch circle radius Rp of the defined rotor and the conjugate rotor, a first center t defining a reference horizontal line h designating a second point P defining a second line h defining an arc B by drawing around the second center t defining an arc F by drawing around the first center t defining a third line h defining an arc C by drawing around the fourth center t  in which r defining a horizontal line Y by connecting the third point P