序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 带有空化调节的液环真空 CN201280061046.3 2012-12-12 CN104066994A 2014-09-24 海纳·克斯特斯; 马蒂亚斯·塔姆; 丹尼尔·许策
发明涉及用于运行液体环真空的方法,其中进行泵的振动测量并且将之与规定的空化阈值(26)进行比较。另外,进行代表被输送的气体内的液体成分的测量。将此测量与规定的阈值进行比较。如果已超过规定的空化阈值(26)且液体成分低于规定的阈值,则降低液体环真空泵的转速。如果已超过规定的空化阈值且液体成分高于规定的阈值,则升高液体环真空泵的转速。本发明还涉及为了实施该方法而设计的液体环真空泵。由于取决于根据本发明的泵的振荡而进行调节,所以可接近空化边界运行所述泵而无任何损坏的险。
2 电动压缩机 CN200780003544.1 2007-01-11 CN101375059A 2009-02-25 齐藤晓; 鸣田知和; 小山茂幸
一种变换器一体型或变换器分开设置型的电动压缩机,包括控制装置,该控制装置根据变换器的功率元件的温度来推定压缩机吸入压,或利用传感器来直接测定压缩机吸入压力,或根据压缩机吸入温度或者压缩机壳体温度来推定压缩机吸入压力,根据电动机转速以及电动机相电流和相电压来计算电动机转矩,根据压缩机吸入压力和电动机转矩来推定压缩机排出压力,并根据压缩机吸入压力和压缩机排出压力来推定压缩机排出温度。可实现具有代替以往的过热保护器的排出温度检测装置的电动压缩机。
3 带有空化调节的液环真空 CN201280061046.3 2012-12-12 CN104066994B 2016-09-21 海纳·克斯特斯; 马蒂亚斯·塔姆; 丹尼尔·许策
发明涉及用于运行液体环真空的方法,其中进行泵的振动测量并且将之与规定的空化阈值(26)进行比较。另外,进行代表被输送的气体内的液体成分的测量。将此测量与规定的阈值进行比较。如果已超过规定的空化阈值(26)且液体成分低于规定的阈值,则降低液体环真空泵的转速。如果已超过规定的空化阈值且液体成分高于规定的阈值,则升高液体环真空泵的转速。本发明还涉及为了实施该方法而设计的液体环真空泵。由于取决于根据本发明的泵的振荡而进行调节,所以可接近空化边界运行所述泵而无任何损坏的险。
4 螺杆压缩机 CN200710138474.2 2007-08-08 CN100547244C 2009-10-07 米本龙一郎; 饭冢泰成; 东条健司
发明提供一种螺杆压缩机,其要解决的技术问题是,作为螺杆冷却用的螺杆压缩机,能够效率良好的运转。本发明中,螺杆压缩机是螺杆冷却用,具有一对螺杆转子和收纳它的壳体、可对容积比进行改变的容量控制、驱动螺杆转子的达以及可对该马达的转速进行改变的逆变器。该螺杆压缩机与负荷相应,单独或者共用基于逆变器的转速控制构件和基于容量控制阀的机械容量控制构件进行控制,同时,将基于逆变器进行的单独容量控制情况下的最高效率点设定在比额定运转点低的转速一侧,比该最高效率点转速大的区域在从额定转速到高转速侧,仅通过逆变器进行控制。
5 螺杆压缩机 CN200710138474.2 2007-08-08 CN101122290A 2008-02-13 米本龙一郎; 饭冢泰成; 东条健司
发明要解决的技术问题是,作为螺杆冷却用的螺杆压缩机,能够效率良好的运转。本发明中,螺杆压缩机是螺杆冷却用,具有一对螺杆转子和收纳它的壳体、可对容积比进行改变的容量控制、驱动螺杆转子的达以及可对该马达的转速进行改变的逆变器。该螺杆压缩机与负荷相应,单独或者共用基于逆变器的转速控制构件和基于容量控制阀的机械容量控制构件进行控制,同时,将基于逆变器进行的单独容量控制情况下的最高效率点设定在比额定运转点低的转速一侧,比该最高效率点转速大的区域在从额定转速到高转速侧,仅通过逆变器进行控制。
6 控制流体压缩系统的方法和控制系统 CN95197359.2 1995-10-26 CN1176679A 1998-03-18 K·哈利凯仁
发明涉及控制流体压缩系统的方法,该压缩系统包括至少一种压缩流体介质的压缩装置(1)、把该压缩介质带到需求点(9)的装置和至少一种在需求点(9)之前控制该流体介质的装置。根据本方法,确定了在需求点(9)处用户管线压(P3)的允许最小值(P3min)和最大值(P3max),借助压力传感器(16)连续监控用户管线压力(P3),监控该压缩装置的工作压力(P2),监控该压缩装置(1)工作压力(P2)和在需求点(9)处的用户管线压力(P3)之间的压力差。监控输送给需求点(9)的流体介质的压力变化速率,并且基于至少一在此方法前述步骤中确定的监控参数借助于控制装置(12)控制至少一压缩装置(1)。
7 ANTI-DECOMPRESSION GEAR FUEL PUMP FOR BROKEN BUBBLES US15168230 2016-05-30 US20170342980A1 2017-11-30 DONG WANG
The present invention discloses an anti-decompression gear fuel pump for broken bubbles, characterized by comprising: a drive motor; and a pump body and a pump cover successively installed on the top end of the drive motor, wherein the pump body is provided with a groove, and a driving gear, a left driven gear and a right driven gear which are installed in the groove and are linked through a motor shaft of the drive motor; meanwhile, the driving gear is respectively internally engaged with the left driven gear and the right driven gear; the pump cover is provided with an A end of a fuel outlet, a D end of a circulating fuel outlet, a B end of a circulating fuel inlet, and a C end of a fuel inlet; and the A end of the fuel outlet, the D end of the circulating fuel outlet, the B end of the circulating fuel inlet, and the C end of the fuel inlet are penetrated into the groove of the pump body. The anti-decompression gear fuel pump for broken bubbles, designed in the present invention, not only solves a decompression problem generated because bubbles appear in a fuel pipeline, but also has scientific and reasonable structure.
8 Liquid Ring Vacuum Pump with Cavitation Regulation US14364083 2012-12-12 US20140377084A1 2014-12-25 Heiner Kösters; Matthias Tamm; Daniel Schütze
A method for operating a liquid ring vacuum pump employs taking vibration measurements of the pump and comparing the measurements with a prescribed cavitation threshold. In addition, a measurement representing the liquid content in the gas to be conveyed is taken. This measurement is compared with a prescribed threshold. The rotational speed of the liquid ring vacuum pump is reduced if the prescribed cavitation threshold has been exceeded and the liquid content is less than the prescribed threshold. The rotational speed is increased if the prescribed cavitation threshold has been exceeded and the liquid content is greater than the prescribed threshold. A liquid ring vacuum pump is designed for implementing the method. Due to the regulation depending on the oscillations of the pump, the pump can be operated near the cavitation boundary without any risk of damage.
9 COMPRESSOR SYSTEM INCLUDING A FLOW AND TEMPERATURE CONTROL DEVICE US13580292 2010-01-22 US20120321486A1 2012-12-20 Paul A. Scarpinato; Larry R. Stutts; Sudhir Sreedharan
A compressor system including a gas and a lubricant inlet. The compressor compresses a gas and discharges a mixed flow of compressed gas and lubricant. A valve housing includes a hot and a cooled lubricant inlet, and a lubricant outlet connected to the hot and cooled lubricant inlets. A sleeve is disposed within the valve housing and is movable between a first and a second position. The sleeve defines a mixing chamber and includes a first aperture with the hot lubricant inlet and a second aperture with the cooled lubricant inlet. The hot and cooled lubricant mix in the mixing chamber are directed to the lubricant inlet of the compressor. A thermal element is positioned to sense a temperature and moves the sleeve in response. The movement of the sleeve varys the amount of hot lubricant admitted through the first aperture and varys the amount of cooled lubricant admitted through the second aperture to control a lubricant temperature.
10 Electric compressor and control device for estimating compressor discharge temperature US12162302 2007-01-11 US08328525B2 2012-12-11 Satoru Saito; Tomokazu Naruta; Shigeyuki Koyama
An inverter-integrated electric compressor has a control device. The control device estimates a compressor suction pressure based on the temperature of the power element of the inverter, or directly measures the compressor suction pressure by a sensor, or estimates the compressor suction pressure based on a compressor suction temperature or on a compressor housing temperature. Further, the control device calculates a motor torque based on a motor rotational speed, a motor phase current, and a motor phase voltage, estimates a compressor discharge pressure based on the compressor suction pressure and the motor torque, and estimates a compressor discharge temperature based on the compressor suction pressure and the compressor discharge pressure. The electric compressor has a discharge temperature detection device in place of a conventional thermal protector.
11 Method of altering a fluid-borne contaminant US12902232 2010-10-12 US08142716B2 2012-03-27 James F. Garvey; John A. Lordi; Joseph Mollendorf; James D. Felske
An improved method of purifying a fluid having fluid-borne contaminants I including the steps of: providing a pump (21) having an inlet (22) and an outlet (23); connecting the pump inlet to a source (24) of contaminated fluid; operating the pump at. a pressure ratio of at least 2.0 so as to sufficiently elevate the temperature of the fluid and contaminants passing through the pump, or, alternatively, operating the pump so that the outlet temperature of the fluid and contaminants passing therethrough is at least about 200° C.; and controlling the time during which the temperature of the fluid and contaminants are elevated; thereby to alter or convert substantially all of the contaminants passing through the pump.
12 ELECTRIC COMPRESSOR US12162302 2007-01-11 US20090041598A1 2009-02-12 Satoru Saito; Tomokazu Naruta; Shigeyuki Koyama
An inverter-integrated or an inverter-separated electric compressor has a control device. The control device estimates a compressor suction pressure based on the temperature of the power element of the inverter, or directly measures the compressor suction pressure by a sensor, or estimates the compressor suction pressure based on a compressor suction temperature or on a compressor housing temperature. Further, the control device calculates a motor torque based on a motor rotational speed, a motor phase current, and a motor phase voltage, estimates a compressor discharge pressure based on the compressor suction pressure and the motor torque, and estimates a compressor discharge temperature based on the compressor suction pressure and the compressor discharge pressure. An electric compressor having a discharge temperature detection means in place of a conventional thermal protector can be realized.
13 SCREW COMPRESSOR US11836189 2007-08-09 US20080038127A1 2008-02-14 Ryuichiro Yonemoto; Yasuaki Iizuka; Kenji Tojo
A screw compressor is for use of a screw chiller, and comprises a pair of screw rotors and a casing housing the screw rotors, a capacity control valve for varying a ratio of volume, a motor for driving the screw rotors and an inverter for varying the rotational speed of the motor. The screw compressor is controlled using rotational speed control means by the inverter and mechanical capacity control means by the capacity control valve independently or combined together according to loads. The maximum efficient point in a capacity control performed solely by the inverter is set to a rotational speed side lower than the rated operation point. In a region where the rotational speed is higher than the maximum efficient point, the inverter solely takes control from a rated rotational speed to a high rotational speed side.
14 Refrigerating apparatus US09834640 2001-04-16 US20010023596A1 2001-09-27 Makoto Fujita; Yoshikazu Amo
A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus.
15 System for compressing air and extracting nitrogen from compressed air US269768 1994-07-01 US5496388A 1996-03-05 Nils E. Tellier
A system for extracting nitrogen from air to produce a flow of nitrogen includes a compressor for compressing air and an air separator connected to the compressor for producing nitrogen from the compressed air. The compressor is provided with a reducing device for reducing an effective length of the rotatable rotors which acts to compress air in order to cause the compressor to operate at less than full capacity. An internal pressure control regulator operatively associated with the compressor regulates the discharge pressure from the compressor and provides a signal air pressure when the compressor discharge pressure exceeds a predetermined pressure. An external input device allows an external signal indicative of a compressor operating level that is less than full capacity to be inputted and provides a signal air pressure based on the external signal. The reducing device is made operational either automatically on the basis of the signal air pressure from the internal pressure control regulator or manually on the basis of the signal air pressure from the external input control device. The system can also be designed to vary the operating level of the compressor when the purity of the nitrogen changes as a result of a change in the nitrogen flow demand.
16 METHOD FOR CONTROLLING A ROTARY SCREW COMPRESSOR US15950099 2018-04-10 US20180291902A1 2018-10-11 Ulrich Thomes
The invention relates to a method for controlling a rotary screw compressor, having at least a first and a second air-end, wherein both air-ends are driven separately from one another and speed controlled. According to the invention, the following steps are carried out: detection of a volume flow taken at the outlet of the second air-end; adjustment of the rotational speed of both air-ends, when the removed volume flow fluctuates in a range between a maximum value and a minimum value; opening of a pressure-relief valve, if the volume flow falls below the minimum value; and reduction of the rotational speed of at least the first air-end to a predetermined idling speed (V1L) to reduce the volumetric flow delivered by the first to the second air-end.
17 Gas Compressor US15761987 2015-11-13 US20180291901A1 2018-10-11 Toshiaki YABE; Tomoo SUZUKI; Yuuji ITOU; Kohei SAKAI
In order to reduce operation in a rotation-prohibited frequency range and to prevent resonance in a gas compressor wherein inverter control is performed, this gas compressor has: a compressor main body that compresses a gas; a motor that rotationally drives the compressor main body; an inverter that changes the rotational speed of the motor; a check valve arranged downstream from the compressor main body; a pressure detection means that detects load-side pressure downstream from the check valve; and a control device that, in accordance with the pressure detected by the pressure detection means, controls the frequency output by the inverter. The control device performs a control whereby compressed gas having a prescribed pressure is generated/maintained by increasing/decreasing the frequency, and when the frequency that generates the compressed gas having the prescribed pressure includes a specific frequency, the inverter's output frequency is increased or decreased when the pressure detected by the pressure detection means reaches a pressure corresponding to a frequency that has a more constant pressure width than the prescribed pressure and does not include the specific frequency.
18 Method of Altering A Fluid-Borne Contaminant US12902232 2010-10-12 US20110061538A1 2011-03-17 James F. Garvey; John A. Lordi; Joseph Mollendorf; James D. Felske
An improved method of purifying a fluid having fluid-borne contaminants I including the steps of: providing a pump (21) having an inlet (22) and an outlet (23); connecting the pump inlet to a source (24) of contaminated fluid; operating the pump at. a pressure ratio of at least 2.0 so as to sufficiently elevate the temperature of the fluid and contaminants passing through the pump, or, alternatively, operating the pump so that the outlet temperature of the fluid and contaminants passing therethrough is at least about 200° C.; and controlling the time during which the temperature of the fluid and contaminants are elevated; thereby to alter or convert substantially all of the contaminants passing through the pump.
19 Refrigerating apparatus US10447291 2002-09-11 US07246498B2 2007-07-24 Makoto Fujita; Yoshikazu Amo
A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus.
20 Refrigerating apparatus US10447291 2002-09-11 US20030196449A1 2003-10-23 Makoto Fujita; Yoshikazu Amo
A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus.
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