| 摘要 |
A multi-channel, rotary, progressing cavity pump, said multi-channel, rotary, progressing cavity pump comprising: a hollow housing having an outer wall defined by a plurality of overlapping cylindrical chambers, a first end wall defining an inlet port, and a second end wall defining an outlet port, said inlet port and said outlet port communicating with each of said overlapping cylindrical chambers of said hollow housing; a plurality of meshed, lobed rotors disposed within said hollow housing, wherein each rotor comprises a plurality of lobes, each lobe having first and second axially-facing end surfaces, said first and second axially-facing end surfaces defining a twist angle, and each lobe defining a helix angle. |
