Patent ID: 11965522
Assignee: DELTA ELECTRONICS, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC B  F

Claim 20:
21. The impeller of claim 11, wherein the each of the blades further comprises an upper blade tip leading edge radius, an upper blade tip midpoint radius, an upper blade tip trailing edge radius, a lower blade tip trailing edge radius, a lower blade tip midpoint radius and a lower blade tip leading edge radius, and the lower blade tip trailing edge radius is greater than or equal to the upper blade tip trailing edge radius, the upper blade tip trailing edge radius is greater than or equal to the lower blade tip midpoint radius, the lower blade tip midpoint radius is greater than or equal to the upper blade tip midpoint radius, the upper blade tip midpoint radius is greater than or equal to the lower blade tip leading edge radius, and the lower blade tip leading edge radius is greater than or equal to the upper blade tip leading edge radius.