公开(公告)号：US20230279856A1

公开(公告)日：2023-09-07

申请号：US18004610

申请日：2021-07-07

申请人： Project Phoenix, LLC

发明人： Thomas AFSHARI

IPC分类号： F04C14/00 ,  F04C2/08

CPC分类号： F04C14/00 ,  F04C2/084 ,  F04C2270/175

摘要： An apparatus includes a position adjustment circuit to receive a gap setpoint and a gap feedback signal corresponding to a gap width between a pair of meshing gear teeth of a first gear and a second gear. The position adjustment circuit outputs a gap adjustment signal corresponding to a difference between the gap setpoint and the gap feedback signal. The apparatus includes a motion control circuit to provide a first speed demand signal to the first motor that drives the first gear and a second demand signal to the second motor that drives the second gear, and dynamically synchronize position between the pair of meshing gear teeth such that the gap width between the pair of meshing gear teeth is within a predetermined range of the gap setpoint by adjusting at least one of the first speed demand signal or the second speed demand signal.

公开(公告)号：US11530700B2

公开(公告)日：2022-12-20

申请号：US16790770

申请日：2020-02-14

申请人： Nidec Tosok Corporation

发明人： Shigehiro Kataoka ,  Yoshiyuki Kobayashi

IPC分类号： F04C14/00 ,  F04C15/00 ,  H02K11/30 ,  H02K11/33 ,  H02K11/21

摘要： A board surface of a control board is disposed on an outward side of a motor in a radial direction in a posture along an axial direction. A rotation angle sensor is disposed on a rear side of a control board in the axial direction. A power supply input portion on the control board is disposed in an end portion on the rear side in the axial direction. A main body of a motor includes the control board and a wiring assembly electrically connecting a connector and the rotation angle sensor to each other. The wiring assembly includes a power supply input wiring, a sensor wiring, and a wiring holder holding the power supply input wiring and the sensor wiring.

公开(公告)号：US20220333597A1

公开(公告)日：2022-10-20

申请号：US17615963

申请日：2020-06-23

申请人： NIDEC GPM GMBH

发明人： Franz Pawellek

IPC分类号： F04C14/00 ,  F04C11/00 ,  F04C2/16 ,  F04C15/00 ,  F01P5/12

摘要： An electric screw coolant pump for integration into a temperature control circuit of an assembly of which the temperature is to be controlled. An accommodation housing includes a feeder line and a return line of the temperature control circuit, which open into a cavity. A part of the cavity surrounds a spindle housing and communicates with an outlet opening of the spindle housing as well as the feeder line. A sealing element, which provides a seal between a suction side and a pressure side, is arranged towards an end surface of the axial end of the inserted spindle housing.

公开(公告)号：US11421684B2

公开(公告)日：2022-08-23

申请号：US17226136

申请日：2021-04-09

申请人： Dana Motion Systems Italia S.R.L.

发明人： Federica Franzoni ,  Alessandro Sassi

IPC分类号： F04C2/08 ,  F04C14/00 ,  F04C14/08 ,  F04C15/06 ,  F04C2/14

摘要： The gear pump may have a casing, a main shaft and rotating means connected to one end of the main shaft and configured to rotate the main shaft. Housed by the casing, a toothed wheel and at least one other toothed element are intermeshed with the toothed wheel. The other end of the main shaft is connected to one of the toothed wheel and the casing. Rotating the main shaft relative to the rotating means rotates the toothed wheel and the at least one other toothed element relative to the casing, thereby generating the flow. The other one of the casing and the toothed wheel is configured to be rotated around an axis defined by the main shaft for varying a flow rate of the generated flow.

公开(公告)号：US20180200749A1

公开(公告)日：2018-07-19

申请号：US15743659

申请日：2016-08-02

申请人： NORDSON CORPORATION

发明人： Cutler CROWELL, III ,  Alan R. LEWIS

IPC分类号： B05C11/10 ,  F04C14/00 ,  F04C2/107 ,  B05D1/02 ,  B05C5/02

CPC分类号： B05C11/1013 ,  B05C5/0225 ,  B05C11/1034 ,  B05D1/02 ,  F04C2/107 ,  F04C13/001 ,  F04C14/00 ,  F04C2220/30 ,  F04C2270/185

摘要： A jetting dispensing system includes a dispenser body with a fluid chamber and a valve element, and a progressive cavity pump for feeding fluid into the fluid chamber. The progressive cavity pump propagates a plurality of separated cavities of fluid along an elongate length thereof to generate and maintain an incoming fluid pressure at a fluid inlet and the fluid chamber of the dispenser body. Accordingly, the droplets that are generated from operating the valve element in jetting dispensing cycles may define a volume of fluid, regardless of variations in fluid viscosity and variations in operational speed of the jetting dispensing system. Furthermore, the velocity profile of fluid exiting the dispenser body may be more constant to avoid causing changes in fluid velocity that can damage fluid particles and/or cause rotational tumbling or blossoming of the droplet while in flight towards the substrate.

公开(公告)号：US09518587B2

公开(公告)日：2016-12-13

申请号：US14130540

申请日：2012-08-28

申请人： Tomoyoshi Yokota ,  Seiichi Kodato ,  Hiroki Kitagawa ,  Kenichi Matsunaga ,  Masahiro Miura ,  Yoshimi Takahashi

发明人： Tomoyoshi Yokota ,  Seiichi Kodato ,  Hiroki Kitagawa ,  Kenichi Matsunaga ,  Masahiro Miura ,  Yoshimi Takahashi

IPC分类号： F04D25/06 ,  F04B49/08 ,  F04C14/00 ,  F04B41/02 ,  F04B49/06

CPC分类号： F04D25/06 ,  F04B41/02 ,  F04B49/065 ,  F04B49/08 ,  F04B2201/1201 ,  F04B2203/00 ,  F04B2203/0209 ,  F04B2205/00 ,  F04C14/00 ,  F04C2270/18 ,  F04C2270/21

摘要： An air compressor comprising: a tank (50), a compression mechanism (30), a motor (5) and a control circuit (7). The control circuit (7) includes a CPU (70) and a storing unit (74) which stores a control program, the compressor operation history and a plurality of operation modes. Each of the operation modes is defined by two setting values: a reference restart pressure value and a motor rotational speed value, at least one of these values being different from among the plurality of modes. The control circuit (7) executes one of the plurality of modes as a target mode in which the control unit controls the motor to restart by comparing the pressure in the tank with the reference restart pressure and rotates the motor at the rotational speed of the target mode. The control circuit changes the target mode from the one of the plurality of modes to another one of the plurality of modes based on the compressor operation history.

摘要翻译： 一种空气压缩机，包括：罐（50），压缩机构（30），电动机（5）和控制电路（7）。 控制电路（7）包括存储控制程序，压缩机运行历史和多个操作模式的CPU（70）和存储单元（74）。 每个操作模式由两个设置值定义：参考重启压力值和电动机转速值，这些值中的至少一个与多个模式不同。 控制电路（7）执行多种模式中的一种模式作为目标模式，其中控制单元通过将油箱中的压力与参考重启压力进行比较来控制马达重启，并以目标的转速旋转马达 模式。 控制电路基于压缩机运行历史将目标模式从多种模式中的一种模式改变为多种模式中的另一种模式。

公开(公告)号：US20160201694A1

公开(公告)日：2016-07-14

申请号：US14912758

申请日：2014-08-19

申请人： Purdue Research Foundation

发明人： Andrea VACCA ,  Gabriele ALTARE

IPC分类号： F15B7/00 ,  F15B15/18 ,  F04C15/06 ,  F04C14/00 ,  F04C2/18 ,  F04C15/00

CPC分类号： F15B7/006 ,  F01C21/02 ,  F04C2/18 ,  F04C14/00 ,  F04C14/04 ,  F04C15/0026 ,  F04C15/0034 ,  F04C15/0042 ,  F04C15/008 ,  F04C15/06 ,  F04C15/064 ,  F04C15/066 ,  F04C2240/56 ,  F15B15/18

摘要： Methods and apparatus pertaining to positive displacement pumps, and further to hydraulic actuation systems. In some embodiments the pumps are gear pumps with bi-directional operation. In some embodiments the actuation system includes a motor-driven, reversible operation gear pump providing fluid under pressure to a rod and cylinder.

摘要翻译： 与容积式泵相关的方法和装置，以及进一步到液压致动系统。 在一些实施例中，泵是具有双向操作的齿轮泵。 在一些实施例中，致动系统包括电动机驱动的可逆操作齿轮泵，其在压力下向杆和气缸提供流体。

公开(公告)号：US20050118033A1

公开(公告)日：2005-06-02

申请号：US10501531

申请日：2002-02-22

申请人： Willi Schneider

发明人： Willi Schneider

IPC分类号： F01M1/02 ,  F01M1/16 ,  F04B49/06 ,  F04C14/00 ,  F04B49/00 ,  F01M1/00

CPC分类号： F04C14/00 ,  F01M1/02 ,  F01M1/16 ,  F01M2001/0207 ,  F04B49/065 ,  F04B2203/06 ,  F04B2205/09 ,  F04C2270/052 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/20

摘要： The invention relates to a method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine involving the following method steps: operating the positive displacement pump; delivering the fluid to the consumption points in the internal combustion engine; determining at least one characteristic value of the internal combustion engine; forwarding this characteristic value as an actual value signal to a control device; comparing the actual value signal with a predetermined set-point value; preparing an actuating signal from the difference between the actual signal and the set-point value; feeding the actuating signal to an actuator; using the actuator to alter the volumetric flow of the positive displacement according to the actuating signal; repeating the method steps until the actual value signal is equal to the set-point value.

摘要翻译： 本发明涉及一种用于调节内燃机中的体积流量可变正排量泵的方法，包括以下方法步骤：操作容积式泵; 将流体输送到内燃机的消耗点; 确定所述内燃机的至少一个特性值; 将该特征值作为实际值信号转发到控制装置; 将实际值信号与预定的设定值进行比较; 根据实际信号和设定值之间的差来准备启动信号; 将致动信号馈送到致动器; 使用致动器根据致动信号改变正位移的体积流量; 重复方法步骤，直到实际值信号等于设定值。

公开(公告)号：US6082984A

公开(公告)日：2000-07-04

申请号：US236383

申请日：1999-01-25

申请人： Tatsuya Matsumoto ,  Motoya Ito ,  Fumihiro Nimura

发明人： Tatsuya Matsumoto ,  Motoya Ito ,  Fumihiro Nimura

IPC分类号： F02M37/00 ,  F02M37/04 ,  F04C2/10 ,  F04C14/00 ,  F04C15/00 ,  F04C15/06 ,  F01C1/10

CPC分类号： F02M37/041 ,  F04C15/0049 ,  F04C2/102

摘要： A fuel pump comprises a pump unit and a motor unit. The pump unit is a trochoid gear type having rotors in a pump chamber defined by a pair of side plates and a cylindrical housing. A disk plate is attached to the side plate to provide an arcuate-shaped pressure pulsation reducing passage jointly with the side plate. Protrusions or recesses are provided in the passage to cause turbulence in fuel flowing through the passage. This turbulence scatters pressure pulsation in the fuel thereby to reduce the pressure pulsation.

摘要翻译： 燃料泵包括泵单元和马达单元。 泵单元是在由一对侧板和圆柱形壳体限定的泵室中具有转子的倍摆轮齿轮型。 盘片安装在侧板上，与侧板一起提供弓形压力脉动减少通道。 在通道中设有突起或凹槽，以引起流过通道的燃料的湍流。 这种湍流散射燃料中的压力脉动，从而降低压力脉动。

公开(公告)号：US5333997A

公开(公告)日：1994-08-02

申请号：US25625

申请日：1993-03-02

申请人： Werner Hormann ,  Manfred Blum

发明人： Werner Hormann ,  Manfred Blum

IPC分类号： F04B49/00 ,  F04B49/08 ,  F04C11/00 ,  F04C14/00 ,  F04C14/02

CPC分类号： F04B49/002 ,  F04B49/08 ,  F04B2201/1203 ,  F04B2203/0208 ,  F04B2205/18

摘要： The invention relates to a power control device for two variable displacement pumps, each with an adjusting device which can be acted upon by adjusting pressure, a power control valve associated therewith, which is acted upon by a first control pressure corresponding with the operating pressure of the variable displacement pump to be adjusted against a pressure difference in the direction of the control position, in which the adjusting pressure loading is controlled in the direction of reduced displacement of the variable displacement pumps along a hyperbolic control curve, whereby the pressure difference results from a spring-arrangement backpressure counteracting the first control pressure and a second control pressure corresponding with the operating pressure of the other variable displacement pump and with increase of the same drops from a maximum value to a minimum value. In order to set the latter value with the device, it is provided in accordance with the invention that the spring arrangement comprises a first and a second pressure spring, the first pressure spring is set to a force corresponding with the minimum value (.DELTA.p.sub.min) and the second pressure spring is set to a force corresponding with the difference (.DELTA.p.sub.max -.DELTA.p.sub.min) between maximum value (.DELTA.p.sub.max) and minimum value (.DELTA.p.sub.min) of the pressure difference, and the first pressure spring with its setting force and the second pressure spring with a force decreasing with increasing second control pressure act upon the power control valve.

摘要翻译： 本发明涉及一种用于两个可变排量泵的动力控制装置，每个都具有调节装置，该调节装置可以通过调节压力而起作用，与之相关联的动力控制阀被作用在与第一控制压力相对应的第一控制压力 所述可变排量泵被调节成与所述控制位置方向上的压力差相对应，其中所述调节压力负荷沿着双曲线控制曲线沿所述可变排量泵的位移减小的方向被控制，由此所述压差由 抵消第一控制压力的弹簧布置背压和与另一个可变排量泵的操作压力相对应的第二控制压力，并且从最大值增加到最小值。 为了用装置设定后一个值，根据本发明，提供弹簧装置包括第一和第二压力弹簧，第一压力弹簧被设定为与最小值对应的力（DELTA pmin） 并且第二压力弹簧被设定为与压力差的最大值（DELTA pmax）和最小值（DELTA pmin）之间的差值（DELTA pmax-DELTA pmin）以及具有其设定力的第一压力弹簧和 具有随着第二控制压力增加而减小的力的第二压力弹簧作用在功率控制阀上。