| 摘要 |
<p>This internal gear pump is composed of an inner rotor with n teeth, and an outer rotor with n + 1 teeth. The tooth profile of the inner rotor delineates a trochoidal curve (T) according to the locus of fixed points separated only e from the center of a rolling circle (12) when the rolling circle (12) has rolled over a base circle (11) without slipping, and has a group of envelope curves of a trajectory circle (13) with a diameter C, which has a center on the trochoidal curve. The tooth profile of the outer rotor delineates a generating inner rotor wherein the diameter of the trajectory circle (13) is C', which is determined by the expression (C - t), the center (OI) of the generating inner rotor revolves once on a circle (S) of diameter 2e, which serves as the center of the center (OO) of the outer rotor, the generating inner rotor rotates (1/n) times therebetween, and has envelope curves of a group of tooth profile curves of the generating inner rotor in this case.</p> |
