Patent ID: 6808371
Filing Date: 2004-10-26
Classification: F04D

Abstract:
An ultra-thin pump comprising:a ring-shaped impeller including a plurality of vanes at an outer region of said impeller, and a rotor magnet at an inner region of said impeller; a motor stator provided in a space encircled by an inner peripheral surface of said impeller; and a pump casing for housing said impeller, said pump casing including a suction port, a discharge port and a cylinder disposed between said motor stator and said rotor magnet, wherein the dimension of said pump casing in a direction of a rotation axis of said impeller is at least 3 mm and at most 15 mm and the dimension of said pump casing in a radial direction of said impeller is at least 10 mm and at most 70 mm, and said impeller is rotatably supported by said cylinder.