| 摘要 |
<p>The problem of noise levels in a hydraulic gear pump is overcome by adopting a system designed to exert a radial force on the two shafts (5, 6) with which the two gears (3, 4) are associated, having direction and strength such as will combine with the resultant of the pressure forces and gear tooth contact forces to eliminate backlash between the teeth. The system can be mechanical or hydraulic, and is incorporated either into the pump body (2), or into pressure-balanced bearing blocks (18, 19). <MATH> <MATH></p> |
