公开(公告)号：US07451741B1

公开(公告)日：2008-11-18

申请号：US11981109

申请日：2007-10-31

申请人： Bradley E. Bartley ,  Scott F. Shafer ,  Steven Y. Tian ,  Timur T. Trubnikov ,  Christopher R. Jones ,  Haithem Algousi

发明人： Bradley E. Bartley ,  Scott F. Shafer ,  Steven Y. Tian ,  Timur T. Trubnikov ,  Christopher R. Jones ,  Haithem Algousi

IPC分类号： F02M37/04 ,  F02M69/04 ,  F04B39/00

CPC分类号： F02M59/466 ,  F02M59/102 ,  F02M59/368 ,  F02M63/0225 ,  F04B1/0448 ,  F04B1/0452 ,  F04B1/0456

摘要： The pump described herein provides a potentially lower cost alternative to conventional high-pressure pumps by providing a head, a plunger, and a control valve assembly. The head defines a valve bore having a first diameter, a plunger bore having a second diameter, and an intermediate chamber having a third diameter. The plunger is configured to reciprocate within the plunger bore. The plunger, the plunger bore, and the intermediate chamber at least partially define a pumping chamber. The control valve assembly is coupled to the head and includes an actuator moveable in response to an input signal and a valve element coupled to the actuator. The valve element is received within the valve bore and moveable between an open and a closed position. The valve element includes a body having a fourth diameter and a valve head having a fifth diameter. The first diameter is no larger than the second diameter.

摘要翻译： 本文所述的泵通过提供头部，柱塞和控制阀组件提供了传统高压泵的潜在的较低成本的替代方案。 头部限定具有第一直径的阀孔，具有第二直径的柱塞孔和具有第三直径的中间室。 柱塞构造成在柱塞孔内往复运动。 柱塞，柱塞孔和中间室至少部分地限定泵送室。 控制阀组件联接到头部并且包括响应于输入信号而可移动的致动器和联接到致动器的阀元件。 阀元件容纳在阀孔内并在打开和关闭位置之间移动。 阀元件包括具有第四直径的主体和具有第五直径的阀头。 第一直径不大于第二直径。