| 摘要 |
A reversible, self-priming rotary pump has a housing with a stator (21) of elastomeric material which is softer than the elastomeric material of the rotor (18) on a cam (42) on shaft (43). The inlet and exhaust ports (23, 24) are separated by a lobe (19) received in a recess (20) in the stator (21). As the shaft (43) is rotated, the rotor (18) orbits within the stator (21) to pump the fluid between the inlet and exhaust ports (23, 24), the stator (21) being at least partially compressed along the line of contact with the rotor (18) to form an efficient seal therebetween. |
