公开(公告)号：US06591621B2

公开(公告)日：2003-07-15

申请号：US10140946

申请日：2002-05-09

Applicant: Joseph F. Loprete ,  Michael R Young ,  John W Tolbert, Jr. ,  David T Monk ,  Philip C Wagner ,  Joe T Hill ,  Larry Pippin ,  Robert B. Peters

Inventor： Joseph F. Loprete ,  Michael R Young ,  John W Tolbert, Jr. ,  David T Monk ,  Philip C Wagner ,  Joe T Hill ,  Larry Pippin ,  Robert B. Peters

IPC: F25B700

CPC classification number: F25B1/10 ,  F04B39/0005 ,  F04B39/0094 ,  F04B39/0246 ,  F04B49/06 ,  F04B49/126 ,  F04B2201/0206 ,  F04B2205/15 ,  F25B2400/074 ,  G11C16/08

Abstract: A two stage reciprocating compressor and associated HVAC systems and methods are disclosed. The reciprocating compressor includes a crankshaft having an eccentric crankpin, a reversible motor for rotating the crankshaft in a forward and a reverse direction, and an eccentric, two position cam rotatably mounted over the crankpin. The crankshaft and cam combine to cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. The cam and crankpin also include stabilization means to restrict the relative rotation of the cam about the crankpin. A lubrication system is provided to lubricate the engaging surfaces of the crankshaft and cam and between the cam and the bearing surface of the connecting rod. There is also provided a control for selectively operating the motor either in the forward direction at a first power load or in the reverse direction at a reduced second power load. A protector for the motor is also provided. In addition, the application of the reciprocating compressor to both air conditioning and heat pump systems is disclosed.

公开(公告)号：US20030035743A1

公开(公告)日：2003-02-20

申请号：US10035174

申请日：2002-01-04

Inventor： Hyeong Kook Lee ,  Jong Tae Heo

IPC: F04B017/04

CPC classification number: F04B35/045 ,  F04B2201/0206

Abstract: A gas compression apparatus for reciprocating compressor includes: a reciprocating motor generating a linear reciprocal driving force; a compressing cylinder positioned with a predetermined distance from the reciprocating motor; a position controlling cylinder positioned with a predetermined distance from the compressing cylinder; an initial position variable type piston inserted into the compressing cylinder and the position controlling cylinder, and being linearly and reciprocally moved within the compressing cylinder and the position controlling cylinder; and a pressure controlling valve controlling a pressure inside the position controlling cylinder with the pressure of the gas discharged from the discharge chamber. Therefore, the gas compression amount can be controlled by controlling the stroke distance of the initial position variable type piston according to the voltage control of the motor, and at the same time, by controlling the reference position of the initial position variable type piston for the stroke distance of the initial position variable type piston; since the top-clearance of the initial position variable type piston is constantly maintained, the refrigerant gas can be compressed as much as required, an efficiency of the system can be heightened by preventing a refrigerant gas compression loss; and since the dead volume is minimized, an efficiency of the compressor can be improved by preventing a re-expansion loss.

Abstract translation: 用于往复式压缩机的气体压缩装置包括：往复式电动机，其产生线性的往复驱动力; 定位在与往复运动电动机相距预定距离的压缩气缸; 位于与压缩缸相距预定距离的位置控制缸; 插入到压缩缸和位置控制缸中的初始位置可变型活塞，并且在压缩缸和位置控制缸内线性地往复运动; 以及压力控制阀，其利用从排出室排出的气体的压力来控制位置控制筒内的压力。 因此，可以通过根据电动机的电压控制来控制初始位置可变型活塞的行程距离来控制气体压缩量，同时通过控制初始位置可变型活塞的基准位置， 初始位置可变型活塞行程距离; 由于始终保持初始位置可变型活塞的顶部间隙，所以可以根据需要压缩制冷剂气体，通过防止制冷剂气体压缩损失来提高系统的效率; 并且由于死体积最小化，所以可以通过防止再膨胀损失来提高压缩机的效率。

公开(公告)号：US20020064464A1

公开(公告)日：2002-05-30

申请号：US09984158

申请日：2001-10-29

Inventor： Yin Young Hwang ,  Joon Hyung Park ,  Jin Koo Park ,  Yang Kyu Kim ,  Se Young Kim

IPC: F04B049/06

CPC classification number: F04B35/045 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0206 ,  F04B2203/0401 ,  F04B2203/0402 ,  F25B49/022 ,  F25B2400/073

Abstract: In an apparatus and a method for controlling operation of a linear compressor, operation of a linear compressor is controlled by finding each inflection point as a TDC (top dead center) is 0 by using a current and a displacement vector generated in the linear compressor, determining a duty ratio on the basis of the inflection point and generating a switching control signal according to the determined duty ratio.

Abstract translation: 在用于控制线性压缩机的操作的装置和方法中，通过使用在线性压缩机中产生的电流和位移矢量，通过找到TDC（上止点）为0的每个拐点来控制线性压缩机的操作， 根据拐点确定占空比，并根据确定的占空比产生开关控制信号。

公开(公告)号：US06289680B1

公开(公告)日：2001-09-18

申请号：US09433426

申请日：1999-11-04

Applicant: Ki Tae Oh ,  Joo Wan Kim

Inventor： Ki Tae Oh ,  Joo Wan Kim

IPC: F25B900

CPC classification number: F04B49/065 ,  F04B2201/0206 ,  F04B2203/0402

Abstract: An apparatus for controlling an operation of a linear compressor by which an instablel phenomenon caused due to a characteristics deviation of parts of a compressor is corrected to stabilize the operation of the system, thereby accomplishing an optimal operation. Also, when the tuning instability occurs due to the characteristic deviation and the assembly deviation of the mechanic unit of the compressor, and the parts deviation in the control circuit such as the sensorless stroke estimator, the compressor deviation is corrected by using a relative coordinate value. And, while the linear compressor is being operated with the stroke command value according to the cooling mode, in case that the current stroke is in an unstable state, the stroke command value is lowered down as much as a predetermined value, with which the linear compressor is operated for a predetermined time. Then, when a predetermined time lapses, it is operated with the original stroke command value, thereby evading the instablel state. In addition, the tuning instability region is searched for depending on the discharge side pressure and the suction side pressure of the compressor or the outer air temperature while the linear compressor is being operated, in order to avoid it, thereby accomplishing the optimal operation of the linear compressor.

Abstract translation: 一种用于控制线性压缩机的操作的装置，其中校正了由于压缩机的部件的特性偏差而引起的不稳定现象，以稳定系统的操作，从而实现最佳操作。 此外，当由于压缩机的机械单元的特性偏差和组装偏差以及诸如无传感器行程估计器之类的控制电路中的部件偏差而导致调谐不稳定时，通过使用相对坐标值来校正压缩机偏差 。 并且，在线性压缩机根据制冷模式以行程指令值进行动作的情况下，在当前行程处于不稳定状态的情况下，行程指令值下降到规定值以下， 压缩机运行预定时间。 然后，当预定时间过去时，以原始行程命令值操作，从而避免不稳定状态。 此外，为了避免线性压缩机的操作，根据压缩机的排出侧压力和吸入侧压力或外部空气温度来搜索调谐不稳定性区域，从而实现最佳的操作 线性压缩机

公开(公告)号：US20010002977A1

公开(公告)日：2001-06-07

申请号：US09740949

申请日：2000-12-21

Inventor： Ichiro Morita ,  Masanori Kobayashi ,  Koh Inagaki ,  Makoto Katayama

IPC: F04B017/04

CPC classification number: H02K33/16 ,  F04B35/045 ,  F04B39/0027 ,  F04B39/12 ,  F04B49/02 ,  F04B49/06 ,  F04B49/065 ,  F04B49/12 ,  F04B2201/0201 ,  F04B2201/0206 ,  F04B2203/0401 ,  F04B2203/0402 ,  F04B2205/05 ,  F04B2205/07 ,  F04B2205/10 ,  F04B2205/11 ,  F04B2205/18 ,  H02K1/12 ,  H02K1/20 ,  H02K7/14 ,  H02K33/02 ,  H02K33/06 ,  H02K33/10 ,  H02K33/14

Abstract: A tightly closed casing has an inside space for storing coolant gas. A block is accommodated in this casing. A motor includes a stator and a mover. A piston is connected to the mover of the motor. A movable element includes the mover of the motor and the piston. A stationary element includes the stator of the motor and the block. An elastic element has a portion fixed to the movable element and another portion fixed to the stationary element. A cylinder is shiftable in an axial direction with respect the block. A shifting device shifts the cylinder in the axial direction.

Abstract translation: 密封的外壳具有用于储存冷却剂气体的内部空间。 一个块被容纳在该壳体中。 电动机包括定子和动子。 活塞与马达的动子连接。 可移动元件包括马达和活塞的动子。 固定元件包括电机的定子和块体。 弹性元件具有固定到可移动元件的部分和固定到固定元件的另一部分。 圆筒可以相对于块在轴向方向上移动。 换档装置使气缸沿轴向移动。

公开(公告)号：US6155803A

公开(公告)日：2000-12-05

申请号：US288190

申请日：1999-04-08

Applicant: Alfred Ronald Curington ,  Floyd John Bradford, Jr.

Inventor： Alfred Ronald Curington ,  Floyd John Bradford, Jr.

IPC: F04B35/02 ,  F04B47/12 ,  F04B33/02

CPC classification number: F04B47/12 ,  F04B2201/0206

Abstract: A rodless pump is disclosed which is connected to a pressure source via a conduit. In a common oilfield application the pump would be connected to the bottom of a tubing string within the reservoir fluid to be produced. A pressure source such as a hydraulic pump would be connected at the surface to the tubing string so as to selectively apply pressure via fluid in the conduit to the pump, raising the plunger assembly in the pump drawing reservoir fluid into the pump. When pressure via the surface pressure source is released, a gas source in the pump urges the plunger assembly downward in the pump urging the reservoir fluid in the pump into the tubing and to the surface. Preferably, the pump includes dampening mechanisms at both the top and bottom of the plungers stroke so as to reduce metal to metal impact within the pump. This dampening mechanism may include but is not limited to elastomer barriers, springs, and other dampening mechanisms such as discussed further below.

Abstract translation: 公开了一种通过管道连接到压力源的无杆泵。 在常见的油田应用中，泵将连接到待生产的储存器流体内的油管柱的底部。 诸如液压泵的压力源将在表面处连接到油管柱，以便通过管道中的流体选择性地施加压力到泵，使泵中的柱塞组件将储存器流体提升到泵中。 当经由表面压力源的压力被释放时，泵中的气体源将泵中的柱塞组件向下推动，迫使泵中的储存器流体进入管道和表面。 优选地，泵包括位于柱塞行程的顶部和底部的阻尼机构，以便减少泵内的金属对金属的冲击。 该阻尼机构可以包括但不限于弹性体屏障，弹簧和其它阻尼机构，如下文进一步讨论的。

公开(公告)号：US5988994A

公开(公告)日：1999-11-23

申请号：US955081

申请日：1997-10-21

Applicant: David M. Berchowitz

Inventor： David M. Berchowitz

IPC: F04B1/02 ,  F02B75/04 ,  F04B35/01 ,  F04B35/04 ,  F04B49/12 ,  H02K7/075

CPC classification number: F02B75/044 ,  F02B75/048 ,  F04B35/04 ,  F04B49/12 ,  F04B2201/0206 ,  F04B2201/12041

Abstract: A pump or compressor wherein the volumetric displacement of a piston cylinder assembly is variable. The piston is connected to a crank slider or eccentric mechanical drive, the crankshaft of which oscillates alternately clockwise through a controllably variable angle .theta. and counterclockwise through substantially the same angle .theta., the angle .theta. being measured from the angular position of the crankshaft or eccentric at which separation between piston and the closed end of the bore is a minimum (Top Dead Center). The angle of crank oscillation controls the degree of volumetric displacement of the piston. The crank shaft is connected to a torsional spring so as to substantially resonate the rotational inertia of the moving parts. An oscillating electric motor supplies the oscillating torque to drive the mechanism at constant frequency but controllably variable angular amplitude.

Abstract translation: 一种泵或压缩机，其中活塞气缸组件的体积位移是可变的。 活塞连接到曲柄滑块或偏心机械驱动器，曲轴通过可控地可变的角度θ和逆时针方向交替地顺时针旋转通过基本上相同的角度θ，角度θ是从曲轴或偏心的角位置测量的 活塞与孔的封闭端之间的分离是最小的（上止点）。 曲柄摆动角度控制活塞的体积位移程度。 曲柄轴连接到扭转弹簧，以便使运动部件的旋转惯性基本上共振。 振荡电动机提供振荡扭矩，以恒定频率驱动机构，但是可控地可变的角振幅。

公开(公告)号：US5816778A

公开(公告)日：1998-10-06

申请号：US585699

申请日：1996-01-16

Applicant: Frederick T. Elsey, Jr. ,  Bryce R. Peppard

Inventor： Frederick T. Elsey, Jr. ,  Bryce R. Peppard

IPC: F04B49/00

CPC classification number: F04B43/0736 ,  F04B2201/0201 ,  F04B2201/0206

Abstract: A control system for controlling the stroke length of an axially reciprocating shaft in a double-diaphragm pump between a leftmost shaft position and a rightmost shaft position. In one embodiment, the control system includes a marker on the shaft of the pump. A sensor is positioned adjacent to the shaft and located along the longitudinal axis of the shaft with respect to the marker to sense a change in the position of the marker when the shaft is at the leftmost and rightmost positions. The sensor sends signals to a controller that in turn sends a response signal to a driver. The drive alternates directing pressurized air to a first air cell and a second air cell to selectively reciprocate the shaft in a desired direction between the leftmost and rightmost shaft positions.

Abstract translation: 一种控制系统，用于控制双隔膜泵在最左轴位置和最右轴位置之间的轴向往复轴的行程长度。 在一个实施例中，控制系统在泵的轴上包括标记。 传感器邻近轴定位并且相对于标记物沿着轴的纵向轴线定位，以感测当轴处于最左侧和最右侧位置时标记的位置的变化。 传感器向控制器发送信号，控制器又向驱动器发送响应信号。 驱动器交替地将加压空气引导到第一空气室和第二空气室，以在最左侧和最右侧的轴位置之间的期望方向上选择性地使轴往复运动。

公开(公告)号：US5443180A

公开(公告)日：1995-08-22

申请号：US265715

申请日：1994-06-24

Applicant: Christian Dussau

Inventor： Christian Dussau

IPC: A01K39/06 ,  B65B3/32 ,  B67B7/00

CPC classification number: A01K39/06 ,  B65B3/32 ,  F04B2201/0206 ,  F04B2205/03 ,  F04B2207/041

Abstract: Method and apparatus for apportionment includes compressing a paste in an apportioning chamber and thereafter delivering the paste towards a nipple after opening of a blocking element, the volume apportioning of the amount of paste to be distributed being undertaken by measuring the displacement of a piston in the apportioning chamber during delivery. The method and apparatus ensure that the apportioning chamber is placed under low pressure so as to facilitate introduction of the paste and delivery of the paste at a fast speed and then at a slow speed.

Abstract translation: 用于分配的方法和装置包括在分配室中压缩糊料，然后在打开阻塞元件之后将糊剂输送到奶嘴，通过测量活塞在活塞中的位移来进行待分配的浆料的量的分配 分娩室在分娩期间。 该方法和装置确保分配室被置于低压下，以便于以快速的速度，然后以慢的速度引入糊状物并输送浆料。

公开(公告)号：US5017854A

公开(公告)日：1991-05-21

申请号：US604293

申请日：1990-10-29

Applicant: Wilfred J. Gully ,  Charles A. Goodman

Inventor： Wilfred J. Gully ,  Charles A. Goodman

IPC: F04B35/04 ,  H02P7/29

CPC classification number: F04B35/045 ,  H02P7/29 ,  F04B2201/0206 ,  F04B2203/0402

Abstract: A control system for controlling a direct current powered motor in which the direct current voltage, which may not be constant, is reversibly commutated across the coil or winding of the motor during the predetermined commutation time intervals and chopped at high frequency during each commutation time interval by a variable duty cycle, pulse width modulated voltage, in which the width of each voltage pulse, determined by a reference voltage, is varied as an inverse function of the magnitude of the direct current voltage which exists during each voltage pulse interval.