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公开(公告)号：US07140850B2
公开(公告)日：2006-11-28
申请号：US10627459
申请日：2003-07-25
Applicant: David R. Otis, Jr.
Inventor： David R. Otis, Jr.
IPC: F04B43/12
CPC classification number: F04B43/1292 , F04B43/1253 , F04B2201/1208
Abstract: A pump having a rotary portion which compels the movement of a fluid by peristaltic compression of resilient tubing containing the fluid includes a roller assembly having at least one roller mounted in the rotary portion of the pump for contact with the resilient tubing. The roller has a range of rotation in contact with the tubing during pump operation. A roller control mechanism is adapted and constructed to stop the roller at a single, predetermined location on the tubing when the pump operation is stopped.
Abstract translation: 一种具有旋转部分的泵，其通过蠕动压缩包含流体的弹性管的蠕动压缩来驱动流体的运动，包括具有安装在泵的旋转部分中的至少一个辊的辊组件，用于与弹性管接触。 在泵运行期间，辊具有与管道接触的旋转范围。 滚子控制机构被适配和构造成当泵操作停止时将滚子停在管道上的单个预定位置。
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公开(公告)号：US07102306B2
公开(公告)日：2006-09-05
申请号：US10546001
申请日：2004-03-08
Applicant: Koji Hamaoka , Hidehisa Tanaka , Tomonori Ouchiyama
Inventor： Koji Hamaoka , Hidehisa Tanaka , Tomonori Ouchiyama
IPC: H02P1/00
CPC classification number: F04B35/04 , F04B2201/1208 , H02P6/08
Abstract: A rectangular wave or a waveform similar to the rectangular wave is output with an conductive angle no less than 120° but no more than 150° during low-speed operation, but output a rectangular wave, a sine wave or a waveform similar to them with an conductive angle no less than 130° but under 180° by changing the frequency only while maintaining the PWM duty constant at high-speed operation, making it possible to realize high-efficiency and low-noise operation at low-speed operation, secure stable high speed, and prevent peak current of effective current because the current waveform also comes closer to sine wave.
Abstract translation: 在低速运转时，矩形波或与矩形波相似的波形输出导通角度不小于120°但不超过150°，但是输出矩形波或正弦波或类似波形的波形 通过仅在高速运行时保持PWM占空比常数来改变频率，导通角度不小于130°但在180°以下，可以在低速运行时实现高效率，低噪音运行，保证稳定 高速，防止有效电流的峰值电流，因为电流波形也接近正弦波。
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公开(公告)号：US07052246B1
公开(公告)日：2006-05-30
申请号：US09000008
申请日：1996-07-04
Applicant: Ole Ploug , Jakob Bøgh Schubert , Christian Peter Enggaard
Inventor： Ole Ploug , Jakob Bøgh Schubert , Christian Peter Enggaard
CPC classification number: F04B1/2014 , F04B1/20 , F04B1/34 , F04B19/006 , F04B2201/1208
Abstract: An axial piston micropump is disclosed, having a cylinder drum, in which several cylinders are provided a swash plate, with respect to which the cylinder drum is rotatable. It is desirable for such a micropump to have a small displacement combined with a long service life and in which the displacement or delivery volume can be achieved with great accuracy. For that purpose, at least two cylinders are provided, of which at least one is in the form of a working cylinder which has an associated working piston, while at least one other cylinder is in the form of a balance cylinder and has an associated balance piston.
Abstract translation: 公开了一种具有气缸滚筒的轴向活塞微型泵，其中多个气缸设置有旋转斜盘，气缸滚筒可相对于其旋转。 这种微型泵希望具有小的位移，并且具有长的使用寿命，并且可以以高精度实现排量或输送量。 为此目的，提供至少两个气缸，其中至少一个是具有相关联的工作活塞的工作气缸的形式，而至少一个其它气缸呈平衡气缸的形式并且具有相关平衡 活塞。
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公开(公告)号：US20050260085A1
公开(公告)日：2005-11-24
申请号：US11130609
申请日：2005-05-17
Applicant: Armin Conrad , Wolfang Losch
Inventor： Armin Conrad , Wolfang Losch
Abstract: A dry-running reciprocating vacuum pump includes at least one pump stage located in the housing and including a cylinder having at least one gas inlet, a gas outlet, and a piston reciprocating in the cylinder and controlling the at least one inlet, a drive system for driving the piston-driving shaft, which is connected by a crank gear mechanism with the piston, and including a plurality of permanent magnets arranged on the shaft and stationary electrical coils surrounding the permanent magnets for producing a rotatable magnetic field, and a control electronics located in the pump housing for operating the coils.
Abstract translation: 干运行的往复式真空泵包括位于壳体中的至少一个泵级，并且包括具有至少一个气体入口，气体出口和在气缸中往复运动并且控制至少一个入口的活塞的气缸，驱动系统 用于驱动通过曲柄齿轮机构与活塞连接的活塞驱动轴，并且包括布置在轴上的多个永磁体和围绕永磁体的固定电线圈以产生可旋转的磁场，以及控制电子装置 位于泵壳体中用于操作线圈。
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公开(公告)号：US5944495A
公开(公告)日：1999-08-31
申请号：US803871
申请日：1997-02-24
Applicant: Stephen C. Jacobsen , Clark C. Davis
Inventor： Stephen C. Jacobsen , Clark C. Davis
IPC: F04B17/04 , A61M5/142 , F04B3/00 , F04B7/00 , F04B9/02 , F04B9/04 , F04B17/00 , F04B17/03 , F04B49/12 , F04B53/02 , F04B53/16 , F16K41/12 , H01F7/02
CPC classification number: A61M5/142 , F04B17/00 , F04B17/03 , F04B49/12 , F04B53/02 , F04B53/164 , F04B7/0015 , F04B9/02 , F04B9/045 , F16K41/12 , F04B2201/1208 , F04B2205/05 , F05C2225/04 , Y10T137/791 , Y10T137/86228 , Y10T137/86799 , Y10T137/86879 , Y10T137/87708
Abstract: A volumetric pump for administering intravenous fluids to a patient comprises a housing having an elongate cavity therein with an open and a closed end. A resilient sheet of material having a centrally-located aperture covers the open end, and a pump shaft is slidably disposed through the aperture to form a sphincter seal therebetween. An inlet conduit leading from a fluid source (an IV bag) passes through the housing into the cavity near the open end thereof, and an outlet conduit leading to a fluid sink (the patient) passes through the housing from the cavity near the closed end thereof. The shaft is driven back and forth in reciprocating motion inwardly and outwardly of the cavity to produce, respectively, a positive pressure forcing fluid out of the outlet conduit to the fluid sink, and a negative pressure forcing fluid from the fluid source through the inlet conduit.
Abstract translation: 用于向患者施用静脉内流体的体积泵包括其中具有开口和封闭端的细长腔的壳体。 具有中心定位的孔的弹性片材覆盖开口端，并且泵轴可滑动地设置穿过该孔，以在它们之间形成括约肌密封。 从流体源（IV袋）引出的入口导管通过壳体在其开口端附近进入腔体，并且通向流体槽（患者）的出口导管从闭合端附近的空腔穿过壳体 其中。 轴以向内和向外的空腔往复运动来回驱动，分别产生一个正向压力，迫使流体从出口导管流到流体槽，以及一个负压迫使流体从流体源通过入口导管 。
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Patent Agency Ranking
公开(公告)号：US5664937A
公开(公告)日：1997-09-09
申请号：US382741
申请日：1995-02-02
Applicant: Kenichiro Takahashi , Hironori Kaji , Kaoru Hagiya
Inventor： Kenichiro Takahashi , Hironori Kaji , Kaoru Hagiya
CPC classification number: G05D16/2066 , F04B11/0058 , F04B11/0075 , F04B49/065 , G01N30/32 , G05D13/32 , F04B2201/0201 , F04B2201/1208 , F04B2205/05 , G01N2030/326
Abstract: In a pump in which dual plunger is reciprocated with cams attached to the rotating shaft of a motor, the delivery pressure of liquid is measured during a certain period in each cycle of the pump. By setting the pressure during the certain period as a standard pressure value, the motor is controlled so that the delivery pressure during the remaining period in each cycle approaches to the standard pressure value. In this pump, rotating-speed-priority control and pressure-priority control are alternatingly performed to decrease pulsation during delivering liquid.
Abstract translation: 在其中双柱塞与凸轮附接到电动机的旋转轴的往复运动的泵中，在泵的每个循环中的一定周期内测量液体的输送压力。 通过将一定时间段内的压力设定为标准压力值，控制电动机，使得在每个循环的剩余时间段内的输送压力接近标准压力值。 在该泵中，交替地进行旋转速度优先控制和压力优先控制，以减少输送液体期间的脉动。
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公开(公告)号：US5647575A
公开(公告)日：1997-07-15
申请号：US470034
申请日：1995-06-06
Applicant: Stephen C. Jacobsen , Clark C. Davis
Inventor： Stephen C. Jacobsen , Clark C. Davis
IPC: F04B17/04 , A61M5/142 , F04B3/00 , F04B7/00 , F04B9/02 , F04B9/04 , F04B17/00 , F04B17/03 , F04B49/12 , F04B53/02 , F04B53/16 , F16K41/12 , H01F7/02 , F16K3/26
CPC classification number: A61M5/142 , F04B17/00 , F04B17/03 , F04B49/12 , F04B53/02 , F04B53/164 , F04B7/0015 , F04B9/02 , F04B9/045 , F16K41/12 , F04B2201/1208 , F04B2205/05 , F05C2225/04 , Y10T137/791 , Y10T137/86228 , Y10T137/86799 , Y10T137/86879 , Y10T137/87708
Abstract: A valve which may be used with a pump which includes a housing having an interior cavity therein with an inlet and an outlet leading through the housing into the cavity. A resilient sheet of material with an aperture formed therein is disposed in the cavity dividing it into first and second compartments with the inlet leading into the first compartment and the outlet leading from the second compartment. An elongated shaft adapted for reciprocating movement is disposed within and aligned with the cavity and extends through the aperture in the sheet of resilient material. An interior passage extends lengthwise in the shaft and includes first and second openings in the passage which may be positioned so that the first opening is located in the first compartment and the second opening is located in the second compartment, providing a fluid communication between the two compartments.
Abstract translation: 可以与泵一起使用的阀，该泵包括其内部具有腔室的壳体，入口和出口通过壳体进入空腔。 在其中形成有孔的弹性材料片设置在空腔中，将其分成第一和第二隔室，入口进入第一隔室并且从第二隔室引出。 适于往复运动的细长轴设置在空腔内并与空腔对齐并延伸穿过弹性材料片中的孔。 内部通道在轴中纵向延伸并且包括通道中的第一和第二开口，其可以被定位成使得第一开口位于第一隔室中，并且第二开口位于第二隔室中，从而提供两者之间的流体连通 隔间
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公开(公告)号：US5618163A
公开(公告)日：1997-04-08
申请号：US467032
申请日：1995-06-06
Applicant: Stephen C. Jacobsen , Clark C. Davis
Inventor： Stephen C. Jacobsen , Clark C. Davis
IPC: F04B17/04 , A61M5/142 , F04B3/00 , F04B7/00 , F04B9/02 , F04B9/04 , F04B17/00 , F04B17/03 , F04B49/12 , F04B53/02 , F04B53/16 , F16K41/12 , H01F7/02 , F04B49/00
CPC classification number: A61M5/142 , F04B17/00 , F04B17/03 , F04B49/12 , F04B53/02 , F04B53/164 , F04B7/0015 , F04B9/02 , F04B9/045 , F16K41/12 , F04B2201/1208 , F04B2205/05 , F05C2225/04 , Y10T137/791 , Y10T137/86228 , Y10T137/86799 , Y10T137/86879 , Y10T137/87708
Abstract: A bottoming detector for detecting the movement of a pump shaft beyond a pre-determined distance within a cylinder is disclosed. The pump has a housing defining an elongate cavity filled with fluid, a resilient sheet with an aperture in alignment with the cavity which divides the cavity into first and second compartments, and an elongate shaft disposed within the first compartment of the cavity such that it may be moved into and out of the aperture in the sheet to cause pressure fluctuations in the second compartment. There is also a chamber in fluid communication with the second compartment. In the chamber there is actuating means responsive to excessive pressure in the chamber, that actuates a switch to indicate that the shaft has reached a certain distance into the second compartment.
Abstract translation: 公开了一种用于检测泵轴的运动超过气缸内预定距离的底部检测器。 泵具有限定填充有流体的细长空腔的壳体，具有与空腔对准的孔的弹性片，空腔将空腔分成第一和第二隔室，以及设置在腔的第一隔室内的细长轴， 被移入和移出纸张中的孔，以引起第二隔室中的压力波动。 还有一个与第二隔间流体连通的室。 在腔室中存在响应于腔室中的过大压力的致动装置，其致动开关以指示轴已经到达第二隔室中的一定距离。
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公开(公告)号：US20240026876A1
公开(公告)日：2024-01-25
申请号：US17813573
申请日：2022-07-19
Applicant: Caterpillar Inc.
Inventor： Lucas J. PETERSON , David Alexandru VOICULESCU , Andy PUBLES , Mark Francis GRIMES
CPC classification number: F04B49/103 , F04B9/02 , F04B23/06 , F04B49/065 , F04B2201/1201 , F04B2201/1241 , F04B2201/1208 , F04B2203/0207 , F04B2203/0209 , F04B2205/06 , E21B43/2607
Abstract: In some implementations, a controller may obtain a set of measurement values associated with the dual-pump single-power source system, wherein the set of measurement values includes at least one of one or more speed measurements associated with a clutch that is coupled to a power source and a first pump of the dual-pump single-power source system, a measurement value indicating an output speed of the power source, or a first crank angle associated with the first pump and a second crank angle associated with a second pump of the dual-pump single-power source system. The controller may detect that the clutch is experiencing slippage based on comparing at least two measurement values of the set of measurement values. The controller may perform an action to cause the clutch to disengage a mechanical connection between the first pump and the power source while the power source is running and is mechanically connected to the second pump.
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公开(公告)号：US20170298924A1
公开(公告)日：2017-10-19
申请号：US14900010
申请日：2014-06-27
Applicant: EATON CORPORATION
Inventor： Yilun CHEN , Xiaomeng CHENG
CPC classification number: F04B49/06 , F04B17/03 , F04B49/065 , F04B49/08 , F04B49/103 , F04B49/20 , F04B2201/1208 , F04B2203/0201 , F04B2203/0209 , F04B2205/05 , F04B2205/13 , F04C14/08 , F04C15/008 , F04C2270/095
Abstract: An anti-ripple injection method for injecting an anti-ripple signal into a control system of a pump is disclosed. The control system controls an electric motor via an electric motor drive, and the electric motor drives the pump. The anti-ripple signal causes pressure ripples in the pump output to be at least partially cancelled. The anti-ripple injection method comprises: injecting an anti-ripple signal of any waveform into the control system, the anti-ripple signal being represented by the following equation: f(θ)=ΣmAmcos(mθ+θm), wherein θ is the rotation angle of the motor shaft, m is the order of a signal harmonic in the anti-ripple signal, Am and θm are parameters with respect to the mth signal harmonic. A control system of a pump including the anti-ripple injection apparatus, and a pump system including the control system are also disclosed.
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