| 摘要 |
A variable displacement apparatus includes a pair of axially adjustable housing parts sealingly joined together to form a unitary pumping chamber. A pair of meshing elongated vanes or gears having a plurality of teeth disposed within the chamber in a meshing overlapping relationship for positive displacement pumping purposes. The gears are mounted adjustably within the chamber to move axially therein as the housing parts are adjusted axially relative to one another.
|
