公开(公告)号：US06386322B1

公开(公告)日：2002-05-14

申请号：US09532923

申请日：2000-03-22

Applicant: James McCormick

Inventor： James McCormick

IPC: F16H2122

CPC classification number: E21B47/0008 ,  E21B43/127 ,  F03G3/06 ,  F04B47/022 ,  F04B2201/0203 ,  F04B2201/1211 ,  Y10T74/18182 ,  Y10T74/18936

Abstract: A walking beam pumping system is disclosed wherein the pumping system's prime mover is gravity. In one embodiment, the system comprises a walking beam pivotally coupled to a support structure at a pivot point substantially central along the length of the walking beam. A counterbalance weight is disposed along the length of the walking beam. A position device is provided for moving the counterbalance weight along at least a portion of the length of the walking beam. As the counterbalance weight moves along the length of the walking beam, the beam's center of gravity is modulated. By modulating the position of the counterbalance weight in an appropriate manner, the walking beam is caused to pivot back and forth with respect to the support structure. A pumping assembly, for example a sucker rod string, is attached to one end of the walking beam, such that as the walking beam pivots back and forth, the pumping system is actuated to pump fluid out of, for example, an oil well bore. In one embodiment, the positioning device for moving the counterbalance weight comprises a linear motor.

Abstract translation: 公开了一种步进梁泵送系统，其中泵送系统的原动机是重力。 在一个实施例中，系统包括在沿着步进梁的长度大致中心的枢转点处枢转地联接到支撑结构的步进梁。 平衡重量沿着步进梁的长度设置。 提供了一种位置装置，用于沿着步进梁的长度的至少一部分移动平衡重。 当平衡重量沿着步进梁的长度移动时，梁的重心被调制。 通过以适当的方式调节平衡重的位置，使步行梁相对于支撑结构来回枢转。 抽吸组件，例如抽油杆串，附接到步进梁的一端，使得当步进梁前后枢转时，泵送系统被致动以将流体泵出例如油井 。 在一个实施例中，用于移动平衡重的定位装置包括线性马达。

公开(公告)号：US06293756B1

公开(公告)日：2001-09-25

申请号：US09125920

申请日：1998-12-28

Applicant: Lars Andersson

Inventor： Lars Andersson

IPC: F04B4106

CPC classification number: F04B11/0058 ,  F04B49/06 ,  F04B2201/0203 ,  F04B2203/0209 ,  F04B2205/05 ,  F04B2205/13

Abstract: The invention relates to a pump system for providing and maintaining a controlled outflow, comprising a couple of piston pump units (1a, 1b), having at least two cylinders (2a, 2b, 2c, 2d) each with a piston (3a, 3b, 3c, 3d) slidably arranged in each cylinder. It further comprises devices for controllably moving the piston in each cylinder, namely by an eccentric wheel (15a, 15b, 15c, 15d) for each of the pistons, acting on one end thereof. There is also provided a control unit for dynamically changing the speed of movement of the devices for moving the piston, in response to pressure changes in the system on the pressure side, for maintaining a desired flow out of the pump. The pump system further comprises switching valves (10a, 10b) for proportioning solutions to be mixed according to a predetermined ratio, the valves being switchable between each source of solutions (A, B, A′, B′) and are controlled by a control unit having integrating method for integrating the flow during suction from a first source of solution to be mixed, and a method for switching to another source of solution when the integration corresponds to the predetermined proportion of the solution being sucked.

Abstract translation: 本发明涉及一种用于提供和保持受控流出的泵系统，包括一对活塞泵单元（1a，1b），其具有至少两个气缸（2a，2b，2c，2d），每个气缸具有活塞（3a，3b） ，3c，3d）可滑动地布置在每个气缸中。 它还包括用于在每个气缸中可控地移动活塞的装置，即用于每个活塞的偏心轮（15a，15b，15c，15d），作用在其一端。 还提供了一个控制单元，用于响应于系统在压力侧的压力变化而动态地改变用于移动活塞的装置的运动速度，以保持期望的流出泵。 泵系统还包括用于根据预定比例混合的配比溶液的切换阀（10a，10b），所述阀可在每个溶液源（A，B，A'，B'）之间切换并由控制器 单元，其具有用于将来自第一待溶液源的抽吸期间的流量积分的积分方法，以及当积分对应于所吸取的溶液的预定比例时切换到另一溶液源的方法。