| 摘要 |
<p>A fluid motor or pump eliminating the need for a separate drive between drive rotors (33) and seal rotors (34, 35) by providing constant meshing between spiral blades (44-48) on the drive rotors and spiral recesses (49-53) in the seal rotors, the drive rotors being fixed to a single drive shaft (36) and seal rotors being fixed on diametrically opposed shafts parallel to the drive shaft, the drive rotors being so fixed on the drive shaft that if they were all brought axially together without rotation relative to the drive shaft the blades would become contiguous and each set of contiguous blades would overlap the succeeding set (when viewed along the drive shaft). Compound expansion or compression or changed capacity can be achieved by combining different sizes or numbers of rotors on the various shafts.</p> |
