Patent ID: 6942447
Filing Date: 2005-09-13
Classification: F04D,F05B

Abstract:
1. An impeller pump for a fluid, comprising: a rotary impeller; a pump housing defining a first main flow channel and a second main flow channel, wherein the rotary impeller is disposed within a space defined in the pump housing and opposes to the first main flow channel and the second main flow channel, respectively, so that a first pump chamber and a second pump chamber are defined on both sides of the impeller; a first inlet channel and a second inlet channel defined in the pump housing, wherein the first inlet channel communicates with one end of the first main flow channel and the second inlet channel communicates with one end of the second main flow channel, respectively; so that the fluid is drawn into the first pump chamber and the second pump chamber via the first inlet channel and the second inlet channel, respectively, and a first outlet channel and a second outlet channel defined in the pump housing, wherein the first outlet channel communicates with the other end of the first main flow channel and the second outlet channel communicates with the other end of the second main flow channel.