公开(公告)号：US6017194A

公开(公告)日：2000-01-25

申请号：US224405

申请日：1998-12-31

Applicant: Howard L. North, Jr.

Inventor： Howard L. North, Jr.

IPC: F04B11/00 ,  F04B49/16 ,  G01N15/14 ,  F04B49/08

CPC classification number: F04B11/0033 ,  F04B49/16 ,  F04B2201/0808 ,  F04B2203/0201 ,  G01N15/1404

Abstract: A method for control of the drive means for a reciprocating piston pump delivering liquid to a spring loaded piston liquid accumulator providing high volume compliance whereby the accumulator liquid volume is controlled within narrow limits by continuous control of power to the pump drive motor. The accumulator achieves high volume compliance by arranging the kinematics of a main spring loading the accumulator piston to have a negative spring rate equal to the sum of all other positive spring rates produced by a second spring used to adjust the accumulator pressure, by the diaphragm (piston), and by a flexure support for a sensor lever. This sensor lever moves with the accumulator diaphragm to actuate an optical sensor producing an electric signal indicative of small changes in liquid volume in the accumulator. This signal in turn continuously modulates the power to the motor driving the pump so as to maintain the accumulator liquid volume close to a datum value during a large portion of the pump delivery cycle. This close control of liquid volume in a high compliance accumulator provides substantially constant pulse free pressure liquid delivery from a pulsatile pump. The second spring may be adjusted to modify this constant pressure without disturbing the balance between positive and negative spring rates. Adjustment may be manual or automatic in response to liquid temperature whereby liquid pressure is automatically increased with lower liquid temperatures to compensate for increased liquid viscosity to maintain liquid flow substantially constant through an apparatus such as flow cytometry used for particle analysis or particle sorting.

Abstract translation: 一种用于控制向往活塞泵的驱动装置的方法，该往复活塞泵将液体输送到弹簧加载的活塞液体蓄液器，其提供高体积顺从性，由此通过对泵驱动马达的功率的连续控制将储液器液体体积控制在狭窄的范围内。 蓄能器通过布置装载蓄能器活塞的主弹簧的运动学来实现高体积顺从性，其具有等于由用于调节蓄能器压力的第二弹簧产生的所有其它正弹簧刚度的总和的负弹簧速率， 活塞）和用于传感器杆的挠曲支撑件。 该传感器杆与蓄能器膜片一起移动以致动光学传感器，产生指示蓄液器中液体体积变化小的电信号。 该信号又连续地调节驱动泵的电动机的功率，以便在泵输送周期的大部分期间将蓄液器液体体积保持接近基准值。 在高顺应性蓄能器中液体体积的这种紧密控制提供了从脉动泵基本上恒定的无脉冲压力的液体输送。 可以调节第二弹簧以改变该恒定压力，而不会妨碍正和负弹簧速率之间的平衡。 调节可以是手动的或自动的，以响应于液体温度，由此随着液体温度的下降自动地增加液体压力，以补偿液体粘度的增加，以通过诸如用于颗粒分析或颗粒分选的流式细胞术的装置维持液体流动基本恒定。

公开(公告)号：US20140169998A1

公开(公告)日：2014-06-19

申请号：US14237315

申请日：2012-08-08

Applicant: Kenji Kinjo

Inventor： Kenji Kinjo

IPC: F04B7/04

CPC classification number: F04B7/04 ,  F04B39/0005 ,  F04B39/1066 ,  F04B2201/0808

Abstract: A sealed compressor of the present invention comprises an electric component (105); a compression component (107); and a sealed container (101) accommodating the electric component (105) and the compression component (107); wherein the compression component (107) includes: a cylinder block (115) defining a compression chamber (135); a piston (125); and a valve plate (133) having a suction hole (137) through which a refrigerant gas to be compressed in the interior of the compression chamber (135) flows, and a discharge hole (139) through which the refrigerant gas compressed in the interior of the compression chamber 8135) is discharged; wherein the piston (125) is provided with a projection (155) on a tip end surface (153) which faces the valve plate (133); and wherein the projection (155) is configured such that side surfaces thereof include at least one flat surface and a gradient α of the flat surface with respect to the tip end surface of the piston (125) is smaller than a gradient β of another side surface of the projection (155) with respect to the tip end surface of the piston (125).

Abstract translation: 本发明的密封压缩机包括电气部件（105）; 压缩部件（107）; 和容纳电气部件（105）和压缩部件（107）的密封容器（101）。 其中所述压缩部件（107）包括：限定压缩室（135）的气缸体（115）; 活塞（125）; 以及具有吸入孔（137）的阀板（133），压缩室（135）内部压缩的制冷剂气体通过所述吸入孔流过，以及排出孔（139），内部压缩的制冷剂气体 的压缩室8135）被排出; 其中，所述活塞（125）在与所述阀板（133）相对的前端面（153）上设置有突起（155）。 并且其中所述突起（155）被构造成使得其侧表面包括至少一个平坦表面，并且所述平坦表面相对于所述活塞（125）的末端表面的梯度α小于梯度＆amp; bgr; （155）的另一个侧表面相对于活塞（125）的顶端表面。

公开(公告)号：US5915925A

公开(公告)日：1999-06-29

申请号：US779505

申请日：1997-01-07

Applicant: Howard L. North, Jr.

Inventor： Howard L. North, Jr.

IPC: F04B11/00 ,  F04B49/16 ,  G01N15/14 ,  F04B49/06

CPC classification number: F04B11/0033 ,  F04B49/16 ,  F04B2201/0808 ,  F04B2203/0201 ,  G01N15/1404

Abstract: A liquid supply system for flow cytometry apparatus including a diaphragm pump, a novel liquid accumulator providing exceptionally high volume compliance, and a control of accumulator volume within narrow limits by continuous control of power to the pump motor. The accumulator achieves high volume compliance by arranging the kinematics of a main spring loading the accumulator to have a negative spring rate equal to the sum of all other positive spring rates produces by a second spring used to adjust the accumulator pressure, by the diaphragm, and by a flexure pivot support for a sensor lever. This sensor lever moves with the accumulator diaphragm to actuate an optical sensor producing an electric signal indicative of small changes in liquid volume in the accumulator. This signal in turn continuously modulates the power to the motor driving the pump so as to maintain the accumulator liquid volume close to a datum value even during a portion of the pump delivery cycle. This close control of liquid volume in a high compliance accumulator provides substantially pulse-free constant pressure liquid delivery from a pulsatile pump. The second spring may be adjusted to modify this constant pressure without disturbing the balance between positive and negative spring rates. Adjustment may be manual or automatic in response to a variable such as fluid temperature whereby liquid pressure is automatically increased with lower liquid temperatures to maintain liquid flow substantially constant through a flow cytometry apparatus used for particle analysis or particle sorting or the like.

Abstract translation: 一种用于流式细胞术装置的液体供应系统，包括隔膜泵，具有特别高体积顺应性的新型液体蓄液器，以及通过连续控制泵马达的功率来控制狭窄范围内的蓄能器体积。 蓄能器通过布置装载蓄能器的主弹簧的运动学来实现高体积顺从性，以使负弹簧速率等于由用于通过隔膜调节蓄能器压力的第二弹簧产生的所有其它正弹簧刚度的总和，以及 通过用于传感器杆的挠曲枢轴支撑。 该传感器杆与蓄能器膜片一起移动以致动光学传感器，产生指示蓄液器中液体体积变化小的电信号。 该信号又连续地调节驱动泵的电动机的功率，以便即使在泵输送循环的一部分期间也将蓄液器液体体积保持接近基准值。 在高顺应性蓄能器中对液体体积的这种紧密控制提供了来自脉动泵的基本上无脉冲的恒定压力的液体输送。 可以调节第二弹簧以改变该恒定压力，而不会妨碍正和负弹簧速率之间的平衡。 响应于诸如流体温度的变量，调节可以是手动的或自动的，由此随着液体温度的降低自动地增加液体压力，以通过用于粒子分析或粒子分选等的流式细胞仪来维持液体流动基本恒定。

公开(公告)号：US11841011B2

公开(公告)日：2023-12-12

申请号：US17260269

申请日：2018-12-20

Applicant: Gree Electric Appliances, Inc. of Zhuhai

Inventor： Yang Li ,  Xiaolin He ,  Wenbin Liu ,  Xiaona Zheng

IPC: F04B49/06 ,  F04B27/00 ,  F04B49/03 ,  F04B49/02 ,  F04B49/22 ,  F04B25/00 ,  F04B51/00 ,  F04B49/10 ,  F25B1/10 ,  F15B19/00

CPC classification number: F04B49/06 ,  F04B25/00 ,  F04B27/005 ,  F04B49/02 ,  F04B49/03 ,  F04B49/065 ,  F04B49/10 ,  F04B49/225 ,  F04B51/00 ,  F15B19/005 ,  F25B1/10 ,  F04B2201/0807 ,  F04B2201/0808 ,  F04B2207/703 ,  F25B2400/074

Abstract: The present disclosure provides a control method of a compressor and a refrigerant circulation system. The control method includes deciding whether a current working volume state of the compressor is matched with a control instruction after the compressor completes a change to a working volume according to the control instruction; determining that the compressor operates normally in a case where the current working volume state of the compressor is matched with the control instruction; and determining that the compressor operates in fault in a case where the current working volume state of the compressor is not matched with the control instruction.

公开(公告)号：US20180252241A1

公开(公告)日：2018-09-06

申请号：US15909076

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Jorgen P. Todsen ,  Jorgen Mads Clausen ,  Tom Tychsen

IPC: F15B3/00 ,  F15B15/20 ,  F04B9/113

CPC classification number: F15B3/00 ,  F04B7/0225 ,  F04B9/1056 ,  F04B9/113 ,  F04B2201/0808 ,  F04B2205/065 ,  F04B2205/16 ,  F15B15/202 ,  F15B2215/30

Abstract: A hydraulic pressure intensifier (1) is described comprising a housing (2) having a low pressure chamber (3) and a high pressure chamber (4), force transmitting means (5) between the low pressure chamber (3) and the high pressure chamber (4), and a switching valve (8) connecting the low pressure chamber (3) to a first pressure or to a second pressure different from the first pressure. It is intended to have a large volume on the high pressure side of the pressure intensifier. To this end the switching valve (8) is controlled by a pilot valve 18.

公开(公告)号：US09039387B2

公开(公告)日：2015-05-26

申请号：US12769370

申请日：2010-04-28

Applicant: Joerg Mellar

Inventor： Joerg Mellar

IPC: F04B49/16

CPC classification number: F04B49/16 ,  F04B2201/0808 ,  F04B2205/03

Abstract: A supercharged compressor and method of operating the compressor supplies a commercial vehicle with compressed air. The compressor includes a piston chamber, a dead space or clearance volume and a valve unit for switching the clearance volume. The valve element is configured such that the air volume supplied by the supercharged compressor can be reduced to a value that is different from zero by activating the clearance volume.

Abstract translation: 增压压缩机和操作压缩机的方法为商业车辆提供压缩空气。 压缩机包括活塞室，死空间或间隙容积以及用于切换间隙容积的阀单元。 阀元件构造成使得由增压压缩机提供的空气量可以通过启动间隙容积而减小到不同于零的值。

公开(公告)号：US5818131A

公开(公告)日：1998-10-06

申请号：US855437

申请日：1997-05-13

Applicant: Wei-Min Zhang

Inventor： Wei-Min Zhang

IPC: B63H11/08 ,  F04B35/04 ,  F04B39/00 ,  F04B39/06 ,  F04D3/00 ,  F04D13/06 ,  F04D29/04 ,  F04D29/046 ,  F04D29/048 ,  F04D29/049 ,  F04D29/18 ,  F16C39/06 ,  F25B31/02 ,  H01F7/17 ,  H02K7/08 ,  H02K7/09 ,  H02K7/14 ,  H02K9/19 ,  H02K11/00 ,  H02K16/00 ,  H02K33/16 ,  H02K33/12

CPC classification number: F04D29/048 ,  B63H11/08 ,  F04B35/045 ,  F04B39/0016 ,  F04B39/0027 ,  F04B39/06 ,  F04D13/0646 ,  F04D29/0465 ,  F04D29/049 ,  F04D29/181 ,  F04D3/00 ,  F16C32/0444 ,  H01F7/17 ,  H02K16/00 ,  H02K33/16 ,  H02K7/09 ,  H02K7/14 ,  H02K9/19 ,  F04B2201/0201 ,  F04B2201/0206 ,  F04B2201/0808 ,  F04B2203/0406 ,  F05B2240/51 ,  F05B2240/53 ,  F16C2360/44 ,  F25B31/02 ,  H02K11/00 ,  H02K7/08 ,  Y02T70/56 ,  Y10S128/03

Abstract: A compressor (10; 100; 200; 300; 500) with a build-in reciprocating motor, comprises a cylindrical housing (20; 120; 210; 510) with two ends thereof fitted with two opposing electromagnets (30; 130; 230; 530), each has a circular inner pole (36; 136) and a coaxial annular outer pole (34; 134). A free piston (50; 150; 250; 560; 600) is disposed in the housing between the two electromagnets, dividing the interior of the housing into two chambers (I, II). The piston carries permanent magnet (40; 140, 145; 561; 610), providing inner and outer poles (44, 46; 141, 146) which have conical surface portions (43, 49; 141, 146) complementary with the corresponding poles (34, 36; 134, 136) of the electromagnets. Sliding pole pieces (630 and 660) can be used to increase the stroke length and reduce the piston's total weight. Valves (61, 63, 65; 161, 165) are fitted to form one-way flow passage connecting the inlet and the outlet of the compressor. In operation, the complementary surfaces of the electromagnets and the permanent magnets form concentric forces which drive the free piston axially while keeping it magnetically suspended, so as to minimize the frictional resistance to the piston's movement and to reduce its wear to minimum. Buffer mechanisms, including air, spring and/or magnetic cushioning, are formed between the piston and each of the electromagnets to prevent direct physical impact between them. A movable support (280; 580) provides automatic adjustment of piston's stroke length in response to changes of output pressure. A circuit (285, 283, 212, 211, 221) is formed to circulate a lubricant for keeping the piston lubricated. Magnetic coupling arrangement (570, 545, 555) is made to further improve the compressor's energy efficiency. In application, a number of the compressors can be connected in series to build up a high pressure output.

公开(公告)号：US20180202431A1

公开(公告)日：2018-07-19

申请号：US15397289

申请日：2017-01-17

Applicant: General Electric Company

Inventor： Sebastian Walter FREUND

IPC: F04B49/06 ,  F04B49/02 ,  F04B49/20 ,  F04B51/00

CPC classification number: F04B49/065 ,  F04B25/00 ,  F04B49/02 ,  F04B49/16 ,  F04B49/20 ,  F04B51/00 ,  F04B2201/0808 ,  F04B2201/12 ,  F04B2205/00 ,  F04B2205/09 ,  F04B2207/01

Abstract: According to some embodiments, system and methods are provided, comprising providing a dual-mode model for a reciprocating compressor, wherein the model includes a measurement mode and a tuning mode; receiving one or more inputs to the model from an operating reciprocating compressor; and in response to receipt of the one or more inputs, executing the model in at least one of the measurement mode and the tuning mode, wherein: in a measurement mode, execution of the model further comprises calculating an actual flow rate of gas in the compressor based on the one or more inputs; and in a tuning mode, execution of the model further comprises calculating one of an unloader setting and a speed set point of a physical element of the compressor for a given flow rate of gas. Numerous other aspects are provided.

公开(公告)号：US20100269799A1

公开(公告)日：2010-10-28

申请号：US12769370

申请日：2010-04-28

Applicant: Joerg MELLAR

Inventor： Joerg MELLAR

IPC: F02B33/02 ,  F04B49/22 ,  F02B39/16

CPC classification number: F04B49/16 ,  F04B2201/0808 ,  F04B2205/03

Abstract: A supercharged compressor and method of operating the compressor supplies a commercial vehicle with compressed air. The compressor includes a piston chamber, a dead space or clearance volume and a valve unit for switching the clearance volume. The valve element is configured such that the air volume supplied by the supercharged compressor can be reduced to a value that is different from zero by activating the clearance volume.

Abstract translation: 增压压缩机和操作压缩机的方法为商业车辆提供压缩空气。 压缩机包括活塞室，死空间或间隙容积以及用于切换间隙容积的阀单元。 阀元件构造成使得由增压压缩机提供的空气量可以通过启动间隙容积而减小到不同于零的值。

公开(公告)号：US06200101B1

公开(公告)日：2001-03-13

申请号：US09348716

申请日：1999-07-06

Applicant: Howard L. North, Jr.

Inventor： Howard L. North, Jr.

IPC: F04B4908

CPC classification number: F04B11/0033 ,  F04B49/16 ,  F04B2201/0808 ,  F04B2203/0201 ,  G01N15/1404

Abstract: A method for control of the drive means for a reciprocating piston pump delivering liquid to a spring loaded piston liquid accumulator providing high volume compliance whereby the accumulator liquid volume is controlled within narrow limits by continuous control of power to the pump drive motor. The accumulator achieves high volume compliance by arranging the kinematics of a main spring loading the accumulator piston to have a negative spring rate equal to the sum of all other positive spring rates produced by a second spring used to adjust the accumulator pressure, by the diaphragm (piston), and by a flexure support for a sensor lever. This sensor lever moves with the accumulator diaphragm to actuate an optical sensor producing an electric signal indicative of small changes in liquid volume in the accumulator. This signal in turn continuously modulates the power to the motor driving the pump so as to maintain the accumulator liquid volume close to a datum value during a large portion of the pump delivery cycle. This close control of liquid volume in a high compliance accumulator provides substantially constant pulse free pressure liquid delivery from a pulsatile pump. The second spring may be adjusted to modify this constant pressure without disturbing the balance between positive and negative spring rates. Adjustment may be manual or automatic in response to liquid temperature whereby liquid pressure is automatically increased with lower liquid temperatures to compensate for increased liquid viscosity to maintain liquid flow substantially constant through an apparatus such as flow cytometry used for particle analysis or particle sorting.

Abstract translation: 一种用于控制向往活塞泵的驱动装置的方法，该往复活塞泵将液体输送到弹簧加载的活塞液体蓄液器，其提供高体积顺从性，由此通过对泵驱动马达的功率的连续控制将储液器液体体积控制在狭窄的范围内。 蓄能器通过布置装载蓄能器活塞的主弹簧的运动学来实现高体积顺从性，其具有等于由用于调节蓄能器压力的第二弹簧产生的所有其它正弹簧刚度的总和的负弹簧速率， 活塞）和用于传感器杆的挠曲支撑件。 该传感器杆与蓄能器膜片一起移动以致动光学传感器，产生指示蓄液器中液体体积变化小的电信号。 该信号又连续地调节驱动泵的电动机的功率，以便在泵输送周期的大部分期间将蓄液器液体体积保持接近基准值。 在高顺应性蓄能器中液体体积的这种紧密控制提供了从脉动泵基本上恒定的无脉冲压力的液体输送。 可以调节第二弹簧以改变该恒定压力，而不会妨碍正和负弹簧速率之间的平衡。 调节可以是手动的或自动的，以响应于液体温度，由此随着液体温度的下降自动地增加液体压力，以补偿液体粘度的增加，以通过诸如用于颗粒分析或颗粒分选的流式细胞术的装置维持液体流动基本恒定。