公开(公告)号：USRE39733E1

公开(公告)日：2007-07-17

申请号：US10884825

申请日：2004-07-02

申请人： R. David Morris ,  John Boyer ,  Curtis Ulm ,  George Tomlinson

发明人： R. David Morris ,  John Boyer ,  Curtis Ulm ,  George Tomlinson

IPC分类号： F01D11/00

CPC分类号： F04D29/167

摘要： A cooling water pump for internal combustion engine includes a base and an outer cover forming a water input chamber, an impeller supported on a shaft within said chamber, fed shaft includes a bearing/seal unit mounted within the base and the shaft extended outwardly for connection to the engine. A one-piece, fully enclosed and double shrouded impeller is secured to the shaft. Impeller has a central hub with an outer peripheral concave surface, a bottom convex end wall, vanes are secured to the central portion of the concave wall in the bottom wall and project outwardly therefrom with an outer top shroud. The base has a recess within which the bearing/seal unit is mounted. The recess extends outwardly beyond the outer edge convex wall of the hub from a cooling chamber. The vanes direct a portion of the water flowing through the passageway into the recess for cooling purposes and then back into the radially outer portion of the passageway for discharge with the flowing water into the outlet passageway. The radially inner end of the shroud and outer convex wall overlap each other to form a controlled entrance into the outlet passageway to divert part of the flow into the recess. The invention pertains to a cooling water pump for an internal combustion engine. The pump has a base and a cover that form a water chamber. The chamber includes a one-piece, shrouded impeller secured to a drive shaft driven by the engine. The impeller has a central hub with vanes that project outwardly along with its integral shroud to form a flow passageway to a discharge opening. The base has a recess within which a bearing/seal unit is mounted. The recess extends outwardly beyond the hub to form a cooling passageway to the recess. A portion of the water flowing through the flow passageway is directed into the recess to cool the seal unit, and then back to the flow passageway for discharge. The shroud and hub can overlap to help control the flow to the recess.

公开(公告)号：US06413039B1

公开(公告)日：2002-07-02

申请号：US09585163

申请日：2000-06-01

申请人： R. David Morris ,  John Boyer ,  Curtis Ulm ,  George Tomlinson

发明人： R. David Morris ,  John Boyer ,  Curtis Ulm ,  George Tomlinson

IPC分类号： F01D1100

CPC分类号： F04D29/167

摘要： A cooling water pump for internal combustion engine includes a base and an outer cover forming a water input chamber, an impeller supported on a shaft within said chamber, fed shaft includes a bearing/seal unit mounted within the base and the shaft extended outwardly for connection to the engine. A one-piece, fully enclosed and double shrouded impeller is secured to the shaft. Impeller has a central hub with an outer peripheral concave surface, a bottom convex end wall, vanes are secured to the central portion of the concave wall in the bottom wall and project outwardly therefrom with an outer top shroud. The base has a recess within which the bearing/seal unit is mounted. The recess extends outwardly beyond the outer edge convex wall of the hub from a cooling chamber. The vanes direct a portion of the water flowing through the passageway into the recess for cooling purposes and then back into the radially outer portion of the passageway for discharge with the flowing water into the outlet passageway. The radially inner end of the shroud and outer convex wall overlap each other to form a controlled entrance into the outlet passageway to divert part of the flow into the recess.

摘要翻译： 用于内燃机的冷却水泵包括基座和形成水输入室的外盖，支撑在所述腔室内的轴上的叶轮，进给轴包括安装在基座内的轴承/密封单元，并且轴向外延伸用于连接 到发动机。 一体式全封闭双层叶轮固定在轴上。 叶轮具有具有外周凹表面的中心毂，底部凸出端壁，叶片固定到底壁中的凹壁的中心部分并且从外部向外突出有外顶盖。 基座有一个凹槽，轴承/密封单元安装在该凹槽内。 凹部从冷却室向外延伸超过毂的外边缘凸壁。 叶片将流过通道的水的一部分引导到用于冷却目的的凹部中，然后返回到通道的径向外部，以便将流出的水排放到出口通道中。 护罩和外凸壁的径向内端彼此重叠以形成到出口通道中的受控入口，以将部分流体转入凹槽。