Positive displacement pump assembly with movable end plate for rotor face clearance control
A positive displacement pump and component technology, applied in the field of positive displacement pump components, can solve problems such as air leakage and inefficiency of positive displacement air pumps
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[0014] Referring to the drawings, wherein like reference numerals indicate like components throughout the views, figure 1 A positive displacement pump assembly 10 is shown. In this embodiment, the positive displacement pump assembly 10 is a supercharger assembly for an engine, but the positive displacement pump assembly 10 may be used for pumping other fluids and in other applications. The positive displacement pump assembly 10 has a first rotor 12 meshing with a second rotor 14 . Each rotor 12, 14 has a plurality of lobes. The first rotor 12 is mounted on and rotates with the first rotor shaft 16 . The second rotor 14 is mounted on and rotates with a second rotor shaft 18 , which is generally parallel to the first rotor shaft 16 .
[0015] The rotors 12 , 14 and rotor shafts 16 , 18 are housed within a multi-component positive displacement pump housing 20 . The housing 20 includes a front cover 22 , a middle portion 24 , which may be referred to as a rotor housing portion...
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