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公开(公告)号：US20170047881A1
公开(公告)日：2017-02-16
申请号：US15216355
申请日：2016-07-21
CPC分类号： H02P29/50 , F04B35/04 , F04B49/065 , F04B2203/0211 , F04C28/00 , F04C2240/403 , F04C2270/13 , H02M1/44 , H02M5/458 , H02M5/4585 , H02M2001/123 , H02P27/08
摘要： A conduction noise filtering circuit configured to inhibit conduction noise is provided. The conduction noise filtering circuit includes a first coil part configured to be supplied with alternating current (AC) power, a second coil part configured to be connected to the first coil part in series, a detector configured to detect common mode noise from at least one selected from the first coil part and the second coil part, and a capacitor configured to supply a current offsetting common mode noise between power lines connecting the first coil part and the second coil part in series, based on an output signal of the
摘要翻译： 提供了一种被配置为抑制传导噪声的传导噪声滤波电路。 导通噪声滤波电路包括被配置为提供交流（AC）功率的第一线圈部分，被配置为串联连接到第一线圈部分的第二线圈部分，被配置为从至少一个 从所述第一线圈部分和所述第二线圈部分选择的电容器，以及电容器，被配置为基于所述第一线圈部分和所述第二线圈部分的输出信号，在连接所述第一线圈部分和所述第二线圈部分的电力线之间提供电流偏移共模噪声
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公开(公告)号：US11754084B2
公开(公告)日：2023-09-12
申请号：US16805975
申请日：2020-03-02
申请人： MINEBEA MITSUMI Inc.
发明人： Masato Aoki , Yuji Omura , Takahiro Suzuki
CPC分类号： F04D27/004 , F04D25/06 , H02P29/045 , F04B49/065 , F04B2203/0201 , F04B2203/0209 , F04B2203/0211 , F04D29/66
摘要： A motor drive control device has a control circuit that generates a drive control signal for controlling a rotational speed of a motor based on a speed command signal indicating a target rotational speed of the motor, and a motor driving unit that drives the motor based on the drive control signal. The control circuit performs speed feedback control for generating the drive control signal so that the rotational speed of the motor coincides with the target rotational speed when the target rotational speed is lower than a rotational speed threshold value, and generates the drive control signal based on a relationship between current flowing through the motor and a reference current value when the target rotational speed is higher than the rotational speed threshold value.
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公开(公告)号：US20170030342A1
公开(公告)日：2017-02-02
申请号：US14811324
申请日：2015-07-28
申请人： Caterpillar Inc.
发明人： Cory A. Brown , Robert M. Campion
CPC分类号： F04B15/08 , F04B53/18 , F04B2015/081 , F04B2203/0211 , F17C7/02 , F17C2201/0109 , F17C2201/054 , F17C2205/0332 , F17C2221/033 , F17C2221/035 , F17C2223/0153 , F17C2223/0161 , F17C2223/033 , F17C2225/0115 , F17C2227/0142 , F17C2227/015 , F17C2227/0164 , F17C2227/0178 , F17C2227/0304 , F17C2227/0316 , F17C2227/0332 , F17C2227/0397 , F17C2250/032 , F17C2265/066 , F17C2270/0173
摘要： A pump for pumping a cryogenic fluid includes an activation portion that includes at least one actuator. The activation portion contains oil that may be cooled by the cryogenic fluid. The pump further includes a pumping portion that includes at least one pumping element, the at least one pumping element being operated by the at least one actuator, and a heater associated with the activation portion and configured to, when the heater is active, transfer heat energy to the activation portion such that the oil contained in the activation portion is warmed.
摘要翻译： 用于泵送低温流体的泵包括包括至少一个致动器的致动部分。 活化部分含有可被低温流体冷却的油。 所述泵还包括泵送部分，所述泵送部分包括至少一个泵送元件，所述至少一个泵送元件由所述至少一个致动器操作，以及与所述致动部分相关联的加热器，并且被构造成当所述加热器处于活动状态时，传递热量 激活部分的能量，使得包含在激活部分中的油被加热。
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公开(公告)号：US20100284838A1
公开(公告)日：2010-11-11
申请号：US12442844
申请日：2008-09-25
申请人： Yuki Ichise , Takayuki Watanabe , Takashi Nakagami , Koji Nakano
发明人： Yuki Ichise , Takayuki Watanabe , Takashi Nakagami , Koji Nakano
IPC分类号： F04B17/03
CPC分类号： H02K5/225 , F04B35/04 , F04B2203/0203 , F04B2203/0211 , H02K11/01 , H02K11/02 , H02K11/33
摘要： An inverter-integrated vehicle-air-conditioner electric compressor capable of eliminating malfunctions or the like due to electromagnetic noise interference and improving the reliability is provided. In a vehicle-air-conditioner electric compressor with which an inverter unit is integrated, lead-out positions of low-voltage cables and connectors for supplying a low voltage from a low-voltage power supply to a circuit on a low-voltage ground LV are provided either in a side surface opposite to a mounting position of high-voltage components and high-voltage cables for supplying a high voltage from a high-voltage power supply to a power system circuit on a high-voltage system ground HV; or at an end farthest away from the mounting position of the high-voltage cables and the high-voltage components in an adjacent side surface or the same side surface.
摘要翻译： 提供一种能够消除由于电磁噪声干扰引起的故障等而提高可靠性的逆变器一体型车用空调电动压缩机。 在整合了逆变器单元的车用空气调节器电动压缩机中，低压电缆的导出位置以及从低电压电源向低电压接地LV的电路供给低电压的连接器 设置在与高压部件的安装位置相对的侧表面和用于从高压电源向高压系统地面HV上的电力系统电路提供高电压的高压电缆; 或者在相邻的侧表面或相同侧表面处的高压电缆和高压部件的安装位置最远的一端。
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公开(公告)号：US20190044421A1
公开(公告)日：2019-02-07
申请号：US15793099
申请日：2017-10-25
CPC分类号： H02K11/40 , F04B17/03 , F04B49/06 , F04B2203/0202 , F04B2203/0211 , F04B2203/0213 , H02K5/16 , H02P27/04
摘要： A common mode line-to-ground filter is disclosed which includes but is not limited to a resistor, capacitor and a ground. The common mode line to ground filter is connected on a high side of a step-up transformer. A low side of the step-up transformer is connected to a variable frequency drive that provides a semi-sinusoidal voltage waveform. The common mode line to ground filter generates a filtered sinusoidal waveform from the output of the step-up transformer. The filtered sinusoidal voltage waveform is supplied via an electrical cable to an electrically submersible pump deployed downhole.
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公开(公告)号：US08408883B2
公开(公告)日：2013-04-02
申请号：US12442844
申请日：2008-09-25
申请人： Yuki Ichise , Takayuki Watanabe , Takashi Nakagami , Koji Nakano
发明人： Yuki Ichise , Takayuki Watanabe , Takashi Nakagami , Koji Nakano
IPC分类号： F04B39/06
CPC分类号： H02K5/225 , F04B35/04 , F04B2203/0203 , F04B2203/0211 , H02K11/01 , H02K11/02 , H02K11/33
摘要： An inverter-integrated vehicle-air-conditioner electric compressor capable of eliminating malfunctions or the like due to electromagnetic noise interference and improving the reliability is provided. In a vehicle-air-conditioner electric compressor with which an inverter unit is integrated, lead-out positions of low-voltage cables and connectors for supplying a low voltage from a low-voltage power supply to a circuit on a low-voltage ground LV are provided either in a side surface opposite to a mounting position of high-voltage components and high-voltage cables for supplying a high voltage from a high-voltage power supply to a power system circuit on a high-voltage system ground HV; or at an end farthest away from the mounting position of the high-voltage cables and the high-voltage components in an adjacent side surface or the same side surface.
摘要翻译： 提供一种能够消除由于电磁噪声干扰引起的故障等而提高可靠性的逆变器一体型车用空调电动压缩机。 在整合了逆变器单元的车用空气调节器电动压缩机中，低压电缆的导出位置以及从低电压电源向低电压接地LV的电路供给低电压的连接器 设置在与高压部件的安装位置相对的侧表面和用于从高压电源向高压系统地面HV上的电力系统电路提供高电压的高压电缆; 或者在相邻的侧表面或相同侧表面处的高压电缆和高压部件的安装位置最远的一端。
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公开(公告)号：US11719231B2
公开(公告)日：2023-08-08
申请号：US16463602
申请日：2017-11-10
申请人： Leybold GmbH
CPC分类号： F04B37/14 , F04B35/04 , F04B49/065 , F04B49/20 , F04C25/02 , F04C28/08 , F04C28/24 , F04B2201/021 , F04B2201/0601 , F04B2201/0604 , F04B2203/0201 , F04B2203/0209 , F04B2203/0211
摘要： A processing chamber is connected to a lock chamber. For evacuating the lock chamber and/or the processing chamber a vacuum pump system is provided. The latter comprises a vacuum pump equipment having at least one vacuum pump. Further, the vacuum pump system comprises a valve device for connection to the lock chamber as well as a controller. For noise reduction, a cyclically occurring operating parameter is determined by means of the controller. From said parameter it is determined at which point in time the valve is opened such that temporally before the opening of the valve the rotational speed of at least one of the vacuum pumps can be reduced. This results in a considerable noise reduction at continuing good pump-out times.
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8.发明授权Method for determining the closing point of a pump piston relative to a transverse bore in the pump cylinder 失效用于确定泵活塞相对于泵缸中的横向孔的闭合点的方法
公开(公告)号：US4665742A
公开(公告)日：1987-05-19
申请号：US763358
申请日：1985-08-07
申请人： Jurgen Abt , Heins Bollhagen , Dieter Handtmann , Ulrich Kuhn , Sybille Stumpf
发明人： Jurgen Abt , Heins Bollhagen , Dieter Handtmann , Ulrich Kuhn , Sybille Stumpf
CPC分类号： F02M65/002 , F04B51/00 , F04B2201/0201 , F04B2201/0804 , F04B2203/0209 , F04B2203/0211 , F04B2205/01 , F04B2205/08 , F04B2205/09 , F04B2205/13
摘要： A method for determining the closing point of a pump piston relative to a transverse bore in a corresponding pump cylinder, the method including the steps of providing compressed air to the cylinder via the transverse bore, axially sliding the pump piston near the closing point, consecutively measuring two flow values through a throttle cross-section defined by the pump piston and transverse bore, measuring the positions of the piston corresponding to the two flow values and extrapolating the pump piston unto the closing point from the flow values and piston positions.
摘要翻译： 一种用于确定泵活塞相对于相应泵缸中的横向孔的闭合点的方法，所述方法包括以下步骤：经由所述横向孔向所述气缸提供压缩空气，将泵活塞在闭合点附近轴向滑动 通过由泵活塞和横向孔限定的节流横截面测量两个流量值，测量对应于两个流量值的活塞的位置，并将泵活塞从流量值和活塞位置外推到关闭点。
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