公开(公告)号：US5143513A

公开(公告)日：1992-09-01

申请号：US612800

申请日：1990-11-14

申请人： David I. Ellingson ,  Herbert E. Scott ,  James E. Sparks

发明人： David I. Ellingson ,  Herbert E. Scott ,  James E. Sparks

IPC分类号： F04D13/14 ,  F04D29/22 ,  F04D29/42 ,  F04D29/44 ,  F04D29/66

CPC分类号： F04D13/14 ,  F04D29/2216 ,  F04D29/426 ,  F04D29/448 ,  F04D29/669

摘要： The present invention is directed to a two chamber dishwasher pump wherein the pumping noise associated with recirculation is substantially lowered by reducing the intake area to the recirculation impeller thereby interrupting air pockets formed in the fluid while recirculating. In addition the noise associated with fluid drainage is minimized by an aperture between the drain chamber inlet and the drain outlet which allows fluid to flow from the inlet to the outlet thereby interrupting air pockets in the drain line which create the noise. In addition, fluid flows through the aperture in an opposite direction to that described above in order to relieve excessive pressure in the drain line during recirculation.

摘要翻译： 本发明涉及一种双室洗碗机泵，其中与再循环相关联的泵送噪声通过减小对再循环叶轮的进气面积而基本上降低，从而在再循环期间中断形成在流体中的气泡。 此外，与流体排放相关联的噪声通过排水室入口和排水出口之间的孔被最小化，这允许流体从入口流出到出口，从而中断产生噪声的排水管线中的气穴。 此外，流体沿着与上述相反的方向流过孔，以便在再循环期间减轻排水管线中的过大压力。