公开(公告)号：US06890156B2

公开(公告)日：2005-05-10

申请号：US10286180

申请日：2002-11-01

Applicant: Jeff Watson ,  Ramesh Aggarwal ,  Hari Upadhyay

Inventor： Jeff Watson ,  Ramesh Aggarwal ,  Hari Upadhyay

IPC: F04B47/02 ,  F04B49/06

CPC classification number: F04B47/022 ,  F04B49/065 ,  F04B2201/0202 ,  F04B2201/1201 ,  F04B2203/0204 ,  F04B2203/0207 ,  F04B2203/0209

Abstract: A pumpjack speed control system includes a user interface, a controller and a variable speed drive. The user interface includes a mathematical representation of the pumpjack geometry which permits the conversion of rod speed profiles to crank speed profiles.

Abstract translation: 一个泵车速度控制系统包括用户界面，控制器和变速驱动器。 用户界面包括允许将杆速度曲线转换为曲轴速度曲线的泵夹几何的数学表示。

公开(公告)号：US20030136359A1

公开(公告)日：2003-07-24

申请号：US10275629

申请日：2002-11-06

Inventor： Werner Brosch ,  Raimund Roth

IPC: F02B075/18

CPC classification number: F04B23/106 ,  F04B1/126 ,  F04B1/2014 ,  F04B2201/1201

Abstract: The invention relates to an axial piston engine (1) with a housing (2), inside the housing interior (4) of which a drive shaft (7) and a cylinder drum (16), arranged axially adjacent to said shaft, are rotatably mounted. The longitudinal mid-axes (9a, 9b) of the driveshaft (7) and the cylinder drum (17) run inclined to each other at an angle (W). Several piston bores (18) are arranged in he cylinder drum (16), running roughly parallel to the mid-axis thereof and in which pistons (21) may run axially up and down. The ends of said pistons, facing the driveshaft (7), are universally pivoted.

Abstract translation: 本发明涉及一种具有壳体（2）的轴向活塞发动机（1），其在壳体内部（4）的内部，驱动轴（7）和与所述轴轴向相邻布置的气缸滚筒（16）可旋转 安装。 驱动轴（7）和气缸鼓（17）的纵向中轴（9a，9b）以一定角度（W）彼此倾斜。 几个活塞孔（18）布置在气缸滚筒（16）中，大致平行于其中轴线，并且活塞（21）可以轴向上下运行。 所述活塞的面向驱动轴（7）的端部是普遍枢转的。

公开(公告)号：US20020150482A1

公开(公告)日：2002-10-17

申请号：US10167205

申请日：2002-06-11

Inventor： James A. Thomas

IPC: F04B017/00

CPC classification number: F04D13/022 ,  F04B49/035 ,  F04B49/20 ,  F04B2201/1201 ,  F04D15/0066 ,  Y10T137/86035

Abstract: A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The fluid pump also provides fluid outflow when the rotational direction of the input drive is reversed.

Abstract translation: 提供流体泵，其产生不与输入驱动器的速度成比例的流体流出。 因此，无论输入驱动器的速度如何，可以调节流体泵以提供基本恒定的流体流出。 当输入驱动器的旋转方向相反时，流体泵还提供流体流出。

公开(公告)号：US6152702A

公开(公告)日：2000-11-28

申请号：US275300

申请日：1999-03-24

Applicant: George Codina ,  Donna J. Murr

Inventor： George Codina ,  Donna J. Murr

IPC: F04B1/32 ,  F04B49/06 ,  F04B49/00

CPC classification number: F04B1/32 ,  F04B49/065 ,  F04B2201/1201 ,  F04B2205/04 ,  F04B2205/09

Abstract: An apparatus and method for sensing a parameter of a hydraulic pump. The hydraulic pump includes a housing and an input shaft. The shaft is rotationally driven relative to the housing and electrically coupled to the housing. The hydraulic pump forms a variable capacitor. The apparatus includes an electrode portion positioned adjacent to the input shaft and is electrically isolated from the housing and input shaft. The electrode portion and the input shaft form a fixed capacitor. The fixed capacitor and the variable capacitor are coupled. The apparatus supplies electrical energy to the electrode portion and produces a capacitive signal indicative of the capacitance value of the variable capacitor. The apparatus further applies a filter to the capacitive signal and produces a filtered capacitive signal. The parameter of the hydraulic pump is determined as a function of the filtered capacitive signal.

Abstract translation: 一种感应液压泵参数的装置和方法。 液压泵包括壳体和输入轴。 轴相对于壳体旋转地驱动并且电耦合到壳体。 液压泵形成可变电容器。 该装置包括邻近输入轴定位并与外壳和输入轴电隔离的电极部分。 电极部分和输入轴形成固定电容器。 固定电容器和可变电容器耦合。 该装置向电极部提供电能，并产生表示可变电容器的电容值的电容信号。 该装置还对电容信号施加滤波器并产生经滤波的电容信号。 液压泵的参数被确定为滤波电容信号的函数。

公开(公告)号：US6106249A

公开(公告)日：2000-08-22

申请号：US30988

申请日：1998-02-26

Applicant: Swi Barak

Inventor： Swi Barak

IPC: F04B43/12 ,  A61M5/142 ,  F04B43/08 ,  F04B49/10 ,  F03B13/00

CPC classification number: A61M5/14228 ,  F04B43/082 ,  F04B43/088 ,  F04B49/106 ,  F04B2201/1201 ,  F04B2201/12041 ,  F04B2205/503 ,  F04B2207/01

Abstract: A peristaltic pump for propelling liquid through a flexible tube segment. The pump has a cam shaft which carries a plurality of cams each having a driving surface. The driving surfaces of adjacent cams are spaced at an angle to each other about the cam shaft. The pump also has a plurality of cam followers which are each reciprocal in a common direction perpendicular to the axis of the cam shaft. Each cam follower has a cam surface riding on the driving surface of a cam and a tube engaging surface for engaging the flexible tube segment. At least one of the cam followers is a restriction cam follower of which the tube engaging surface engages the flexible tube segment for a longer period than that of the other cam followers. The pump also has a motor for rotating the cam shaft whereby the cams cause the cam followers to each engage and occlude the flexible tube segment to form a propagating depression wave in the flexible tube segment for propelling liquid. The restriction cam followers prevent back flow of the liquid.

Abstract translation: 用于通过柔性管段推动液体的蠕动泵。 泵具有带有多个凸轮的凸轮轴，每个凸轮具有驱动表面。 相邻凸轮的驱动表面相对于凸轮轴彼此成一定角度。 泵还具有多个凸轮从动件，每个凸轮从动件在垂直于凸轮轴的轴线的共同方向上往复运动。 每个凸轮从动件具有骑在凸轮的驱动表面上的凸轮表面和用于接合柔性管段的管接合表面。 凸轮从动件中的至少一个是限制凸轮从动件，其中管接合表面与柔性管段接合比其它凸轮从动件更长的周期。 泵还具有用于使凸轮轴旋转的马达，由此凸轮引起凸轮从动件各自接合并闭塞柔性管段，以在柔性管段中形成传播的凹陷波，用于推动液体。 限制凸轮从动件防止液体反向流动。

公开(公告)号：US5888051A

公开(公告)日：1999-03-30

申请号：US692598

申请日：1996-08-06

Applicant: John E. McLoughlin ,  Neocles G. Athanasiades

Inventor： John E. McLoughlin ,  Neocles G. Athanasiades

IPC: F04B49/06 ,  F04D15/00 ,  F04D15/02 ,  F04B49/00

CPC classification number: F04D15/0209 ,  F04B49/065 ,  F04D15/0066 ,  F04B2201/0601 ,  F04B2201/1201 ,  F04B2205/05 ,  F04B2207/70

Abstract: A system for controlling the pressure output of an engine-driven centrifugal fire pump includes a discharge pressure sensor mounted in the discharge line of the pump. A governor varies the RPM of the engine in response to pressure changes detected by the discharge pressure sensor. An electronically controlled hydraulic relief valve responsive to the discharge pressure sensor operates simultaneously with the governor to provide improved pressure control in overpressure situations.

Abstract translation: 用于控制发动机驱动的离心式消防泵的压力输出的系统包括安装在泵的排出管线中的排出压力传感器。 调速器响应于排气压力传感器检测到的压力变化而改变发动机的转速。 响应于排出压力传感器的电子控制液压释放阀与调速器同时操作，以在超压情况下提供改进的压力控制。

公开(公告)号：US5554007A

公开(公告)日：1996-09-10

申请号：US324199

申请日：1994-10-17

Applicant: Thomas A. Watts

Inventor： Thomas A. Watts

IPC: F04B49/06 ,  F04B1/32 ,  F04B27/08 ,  F04B1/30

CPC classification number: F04B1/324 ,  F04B2201/1201 ,  F04B2201/12041 ,  F04B2205/05

Abstract: A variable displacement axial piston hydraulic unit includes first and second control pockets individually disposed between first and second arcuate shaped fluid passages, a first electrohydraulic valve for controlling fluid flow between the first control pocket and the first fluid passage and a second electrohydraulic valve for controlling fluid flow between the second passage and the second control pocket. A controller outputs first and second control signals to the first and second electrohydraulic valves in response to receiving a command signal so that the tilt angle of a swashplate is controlled to obtain a desired operating parameter. An angle detector, a pressure detector, and a speed detector provide feedback signals to the controller for determining when the desired operating parameter has been obtained.

Abstract translation: 可变位移轴向柱塞液压单元包括分别设置在第一和第二弧形流体通道之间的第一和第二控制腔，用于控制第一控制腔和第一流体通道之间的流体流动的第一电动液压阀和用于控制流体的第二电动液压阀 在第二通道和第二控制口袋之间流动。 响应于接收到命令信号，控制器将第一和第二控制信号输出到第一和第二电液阀，从而控制斜盘的倾斜角以获得期望的操作参数。 角度检测器，压力检测器和速度检测器向控制器提供反馈信号，以确定何时已获得期望的操作参数。

公开(公告)号：US5397054A

公开(公告)日：1995-03-14

申请号：US109726

申请日：1993-08-20

Applicant: Carsten Ziegs

Inventor： Carsten Ziegs

IPC: B08B3/02 ,  F04B17/05 ,  F04B49/035 ,  F04B49/20

CPC classification number: F04B49/035 ,  B05B9/0403 ,  B08B3/026 ,  B08B3/028 ,  F04B17/05 ,  F04B49/20 ,  B05B9/01 ,  B08B2203/0205 ,  B08B2203/0241 ,  B08B2203/027 ,  F04B2201/1201

Abstract: A pressure jet cleaning appliance having a pressure pump (10) driven by a drive (11). The appliance includes a conduit having a primary line (14) for directing fluid into a spray gun (15) and a bypass line (19) for recycling fluid through the conduit when the spray gun is turned off. A control valve (18) has a reciprocal piston (28) responsive to fluid pressure within the primary line such that the piston moves into a closed position thereby directing fluid through the bypass line when the spray gun is turned off. The piston is directly connected to a control element (22) in the drive such that movement of the piston is translated into displacement of the control element. With this configuration, the piston actuates the control element to reduce the speed of the drive when the piston is in the closed position and to increase the speed of the drive when the piston is in the open position.

Abstract translation: 一种具有由驱动器（11）驱动的压力泵（10）的压力喷射清洁器具。 该器具包括导管，其具有用于将流体引导到喷枪（15）中的主线（14）和用于当喷枪关闭时通过导管再循环流体的旁路管线（19）。 控制阀（18）具有响应主线内的流体压力的往复活塞（28），使得活塞移动到关闭位置，从而当喷枪关闭时将流体引导通过旁路管线。 活塞直接连接到驱动器中的控制元件（22），使得活塞的移动转换成控制元件的位移。 利用该构造，当活塞处于关闭位置时，活塞致动控制元件以降低驱动器的速度，并且当活塞处于打开位置时增加驱动器的速度。

公开(公告)号：US5073091A

公开(公告)日：1991-12-17

申请号：US412211

申请日：1989-09-25

Applicant: Roy T. Burgess ,  Rajamouli Gunda ,  Frank Herta ,  Robert C. Hodges ,  James A. Kessler ,  Richard S. Leemhuis ,  Michael R. McCarty ,  Robert W. Stephens

Inventor： Roy T. Burgess ,  Rajamouli Gunda ,  Frank Herta ,  Robert C. Hodges ,  James A. Kessler ,  Richard S. Leemhuis ,  Michael R. McCarty ,  Robert W. Stephens

IPC: F04B49/00 ,  F04B1/26 ,  F04B49/06 ,  G05D16/20

CPC classification number: G05D16/2066 ,  F04B49/065 ,  F04B2201/1201 ,  F04B2201/12051 ,  F04B2205/05 ,  F04B2207/01 ,  F04B2207/0422

Abstract: A rotary hydraulic machine which includes a housing having a shaft mounted for rotation within the housing about a shaft axis. A cylidner block is coupled to the shaft for co-rotation with the shaft within the housing and includes a plurality of cylinders disposed in a circumferential array parallel to and surrounding the shaft axis. A piston is disposed to reciprocate within each of the cylinders and is coupled to a yoke for determining displacement of the pistons within the cylinders. A valve plate is mounted on a valve block and includes kidney-shaped slots for registering with the cylinders as the cylinder block rotates, and thereby connecting the cylinders to pump input and output ports. A microprocessor-based controller is externally mounted on the pump valve block and includes internal memory having various remotely-selectable control programs prestored therein. Sensors responsive to pump operating conditions are connected to the pump control electronics, and include a first sensor responsive to yoke position, a pressure sensor responsive to pump output pressure and a speed sensor responsive to angular velocity of shaft rotation. All of the electronic components are mounted on the valve block.

公开(公告)号：US4894999A

公开(公告)日：1990-01-23

申请号：US330550

申请日：1989-03-30

Applicant: Masaki Kaiju ,  Toshimitsu Nose ,  Hideyuki Sakamoto ,  Ikuo Kiminami

Inventor： Masaki Kaiju ,  Toshimitsu Nose ,  Hideyuki Sakamoto ,  Ikuo Kiminami

IPC: B60H1/32 ,  F04B27/18 ,  F04B49/06 ,  F25B49/02

CPC classification number: B60H1/321 ,  F04B27/1804 ,  F04B49/065 ,  F25B49/022 ,  B60H2001/3241 ,  B60H2001/325 ,  B60H2001/3261 ,  B60H2001/3264 ,  B60H2001/3266 ,  B60H2001/327 ,  B60H2001/3282 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1854 ,  F04B2027/1859 ,  F04B2201/1201 ,  F04B2205/02 ,  F04B2207/03

Abstract: An automatic air conditioning system for automotive vehicles with a variable displacement compressor comprises a sensor for detecting an intake air temperature of air flowing through the evaporator placed just behind the evaporator, a control valve for the compressor essentially changing the discharge of said compressor on the basis of the difference between the intake air temperature and its target value, and a CPU for changing the target value of the intake air temperature. When the CPU does not receive a signal indicative of a requirement for quick-cooling, the target value is set to a freezing start possible temperature defined by an intake air temperature such that the freezing of the evaporator starts, and when the CPU receives the signal indicative of a requirement for quick-cooling, the target value is set to a predetermined temperature lower than the freezing start possible temperature. Thus, the automatic air conditioning system is capable of maintaining a high displacement of refrigerant in spite of the lowering of suction pressure of the compressor, related to the dropping of the intake air temperature, when the quick-cooling is required.

Abstract translation: 一种用于具有可变排量压缩机的汽车的自动空调系统，包括用于检测流过蒸发器正后方的蒸发器的空气的进气温度的传感器，用于压缩机的控制阀基本上改变了所述压缩机的排放 的进气温度和目标值之间的差异，以及用于改变进气温度的目标值的CPU。 当CPU没有接收到指示快速冷却要求的信号时，将目标值设定为由进气温度限定的冷冻开始可能温度，使得蒸发器的冻结开始，并且当CPU接收到信号时 指示快速冷却的要求，将目标值设定为比冷冻开始可能温度低的预定温度。 因此，当需要快速冷却时，尽管与进气温度的降低有关，压缩机的吸入压力降低，但是自动空调系统能够保持制冷剂的高排量。