| 摘要 |
A lift pump having a longitudinal axis and comprising first and second housing components defining an operational volume, a brushless direct current motor assembly, and a pump assembly disposed in said volume. The brushless direct current motor assembly has a motor axis eccentric with the longitudinal axis, a rotor, and a stator disposed diametrically inwardly of the rotor. The rotor further comprises a plurality of magnetic poles of alternating opposite polarity. The pump assembly has a pump annulus and a pump element. The pump annulus is disposed intermediate said first and second housing components and coaxial with the longitudinal axis. The pump element is coaxial with said motor axis, and comprises a generally cylindrical hub defining a motor assembly cavity sized to diametrically receive said motor assembly. |
