| 摘要 |
<p>A hydraulic demonstration (10) apparatus is disclosed having a hydraulic system (20) including a reservoir (22), an inlet line (24) and an outlet line. A valve (30) at the inlet line is included for introducing air so as to create aeration in the hydraulic system (20). A restricting valve (32) is provided at the inlet line for creating cavitation in the hydraulic system. A hydraulic pump (34) is provided having a clear cover (38) for observing the effects of aeration and cavitation inside the pump. A flow meter (36) having a clear housing is provided for observing the air in the system and the reduction of pump efficiency caused by aeration. The demonstration apparatus can be mounted on a movable cart (12).</p> |
