公开(公告)号：US20040018097A1

公开(公告)日：2004-01-29

申请号：US10441236

申请日：2003-05-20

Inventor： Yoshiihiro Ochiai

IPC: F04B001/26

CPC classification number: F04B27/1804 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: A variable displacement compressor includes a plate having a variable inclination angle, and a piston engaging the plate. The piston reciprocates within a bore of the compressor in accordance with a rotation of the plate, and the piston has a stroke length which is determined by the inclination angle of the plate. The compressor also includes a sensor positioned adjacent to the piston. The sensor generates an output signal when a predetermined portion of the piston is aligned with the sensor. The compressor also includes a processing unit operationally coupled to the sensor. The processing unit estimates the inclination angle of the plate based on the output signal from the sensor.

Abstract translation: 可变排量压缩机包括具有可变倾斜角的板和与板接合的活塞。 活塞根据板的旋转而在压缩机的孔内往复运动，并且活塞具有由板的倾斜角确定的冲程长度。 压缩机还包括邻近活塞定位的传感器。 当活塞的预定部分与传感器对准时，传感器产生输出信号。 压缩机还包括可操作地耦合到传感器的处理单元。 处理单元基于来自传感器的输出信号估计板的倾斜角度。

公开(公告)号：US06609896B2

公开(公告)日：2003-08-26

申请号：US10055965

申请日：2002-01-28

Applicant: Scott G. Hix ,  John R. Walters, Jr. ,  David T. Monk ,  Tyrone S. Simerly

Inventor： Scott G. Hix ,  John R. Walters, Jr. ,  David T. Monk ,  Tyrone S. Simerly

IPC: F04B100

CPC classification number: F04B49/126 ,  F04B39/0094 ,  F04B2201/1202 ,  F04B2203/0207 ,  Y10S417/902

Abstract: The reliability of a compressor may be improved by affixing an inertia-increasing member to the drive shaft of the compressor in order to reduce the forces imposed on a mechanical coupling between the drive shaft and a compression member when the rotation of the drive shaft is initiated. A method of selecting the size and configuration of the inertia-increasing member is also provided.

Abstract translation: 压缩机的可靠性可以通过将惯性增加构件附接到压缩机的驱动轴来改善，以便当驱动轴的旋转开始时减小施加在驱动轴和压缩构件之间的机械联接的力 。 还提供了选择惯性增加构件的尺寸和构造的方法。

公开(公告)号：US20030143083A1

公开(公告)日：2003-07-31

申请号：US10055965

申请日：2002-01-28

Applicant: BRISTOL COMPRESSORS, INC.

Inventor： Scott G. Hix ,  John R. Walters JR. ,  David T. Monk ,  Tyrone S. Simerly

IPC: F04B001/06

CPC classification number: F04B49/126 ,  F04B39/0094 ,  F04B2201/1202 ,  F04B2203/0207 ,  Y10S417/902

Abstract: The reliability of a compressor may be improved by affixing an inertia-increasing member to the drive shaft of the compressor in order to reduce the forces imposed on a mechanical coupling between the drive shaft and a compression member when the rotation of the drive shaft is initiated. A method of selecting the size and configuration of the inertia-increasing member is also provided.

Abstract translation: 压缩机的可靠性可以通过将惯性增加构件附接到压缩机的驱动轴来改善，以便当驱动轴的旋转开始时减小施加在驱动轴和压缩构件之间的机械联接的力 。 还提供了选择惯性增加构件的尺寸和构造的方法。

公开(公告)号：US20020166330A1

公开(公告)日：2002-11-14

申请号：US10104865

申请日：2002-03-22

Inventor： Ryo Matsubara ,  Ken Suitou ,  Kazuya Kimura ,  Masahiro Kawaguchi

IPC: B60H001/32 ,  F25B001/00

CPC classification number: F04B27/1804 ,  B60H1/3208 ,  B60H1/3216 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/185 ,  F04B2201/1202

Abstract: An air conditioning apparatus includes a refrigerant circulation circuit that has a compressor. A driving status of the compressor is detected by first detector. A first calculator calculates a theoretical torque and a driving efficiency of the compressor based on information from the first detector. A second calculator calculates a necessary torque required for driving the compressor. The second calculator calculates the necessary torque based on the theoretical torque.

Abstract translation: 一种空气调节装置，包括具有压缩机的制冷剂循环回路。 第一检测器检测压缩机的驾驶状态。 第一计算器基于来自第一检测器的信息计算压缩机的理论转矩和驱动效率。 第二计算器计算驱动压缩机所需的必要扭矩。 第二计算器基于理论转矩计算必要的扭矩。

公开(公告)号：US20020114704A1

公开(公告)日：2002-08-22

申请号：US10059214

申请日：2002-01-31

Inventor： Kiyoshi Terauchi

IPC: F04B049/00

CPC classification number: F04B27/0895 ,  F04B2201/1202

Abstract: A compressor includes a front housing, a cylinder block, a cylinder head, and a torque transmission mechanism. The torque transmission mechanism includes a pulley, a plate-shaped elastic member connected to the pulley, a hub connected to the plate-shaped elastic member, a drive shaft connected to the hub, and a rotor connected to the drive shaft. The compressor also includes a reciprocating mechanism connected to the torque transmission mechanism. The compressor further includes torque determination means. The torque determination means includes a first marker affixed to the pulley and a second marker affixed to the hub. The torque determination means also includes a first sensor affixed to the front housing which generates a first timing signal when the first marker is positioned within substantially the same vertical plane as the first sensor. The torque determination means further includes a second sensor affixed to the front housing which generates a second timing signal when the second marker is positioned within substantially the same vertical plane as the second sensor. Further, there is a time differential between when the first marker is positioned within substantially the same vertical plane as the first sensor and when the second marker is positioned within substantially the same vertical plane as the second sensor. Moreover, the time differential corresponds to the angular offset and the torque of the compressor is determinable from the time differential.

Abstract translation: 压缩机包括前壳体，气缸体，气缸盖和扭矩传递机构。 扭矩传递机构包括滑轮，连接到滑轮的板状弹性构件，连接到板状弹性构件的轮毂，连接到轮毂的驱动轴和连接到驱动轴的转子。 压缩机还包括连接到扭矩传递机构的往复运动机构。 压缩机还包括扭矩确定装置。 扭矩确定装置包括固定到滑轮的第一标记和固定到轮毂的第二标记。 扭矩确定装置还包括固定到前壳体的第一传感器，当第一标记物位于与第一传感器基本上相同的垂直平面内时，产生第一定时信号。 扭矩确定装置还包括固定到前壳体的第二传感器，当第二标记物位于与第二传感器基本相同的垂直平面内时，产生第二定时信号。 此外，当第一标记位于与第一传感器基本相同的垂直平面内时，以及当第二标记位于与第二传感器基本上相同的垂直平面内时，存在时间差。 此外，时间差对应于角度偏移，并且压缩机的扭矩可以从时间差确定。

公开(公告)号：US5944492A

公开(公告)日：1999-08-31

申请号：US995514

申请日：1997-12-22

Applicant: Hideo Konishi ,  Makoto Samejima

Inventor： Hideo Konishi ,  Makoto Samejima

IPC: F15B11/02 ,  E02F9/22 ,  F04B49/06 ,  F04B49/08 ,  G05B13/02 ,  F04B1/26 ,  F16D31/02

CPC classification number: F04B49/065 ,  E02F9/2235 ,  F02D31/001 ,  F04B49/08 ,  F02D2250/24 ,  F04B2201/1202 ,  F04B2205/05 ,  F04B2205/06

Abstract: A hydraulic pump control system is shown that can control the absorbing torque of a hydraulic pump with respect to the engine power for driving the hydraulic pump in a well-balanced manner, and reduce a deviation of an actual revolution number from a target revolution number of the engine. A torque of hydraulic pumps during operation is estimated from a pump pressure and first and second line pressures. Based on the estimated torque, an output torque of the hydraulic pumps is controlled so that an error between a target revolution number and an actual revolution number of the engine becomes null.

Abstract translation: 液压泵控制系统能够以良好的平衡方式控制液压泵相对于用于驱动液压泵的发动机功率的吸收转矩，并且减少实际转数与目标转数之间的偏差 引擎。 在泵压力和第一和第二管路压力下估计操作期间液压泵的扭矩。 基于估计的扭矩，控制液压泵的输出转矩，使得目标转数与发动机的实际转数之间的误差为零。

公开(公告)号：US5697764A

公开(公告)日：1997-12-16

申请号：US416757

申请日：1995-04-13

Applicant: Yosuke Oda ,  Kiyoshi Shirai

Inventor： Yosuke Oda ,  Kiyoshi Shirai

IPC: F04B49/00 ,  F04B49/08

CPC classification number: F04B49/002 ,  F04B49/08 ,  F04B2201/1202 ,  F04B2205/05

Abstract: There is provided a displacement control system for a variable displacement hydraulic pump which has a displacement control piston assembly (6) having a large diameter chamber (7) for operating a displacement control member (5) of the variable displacement hydraulic pump selectively in a direction of smaller displacement and in a direction of larger displacement, first control valve (8) and second control valve (9) for selectively communicating the large diameter chamber of the displacement control piston assembly with a pump discharge line and a tank, the first control valve being placed at a supply position by the pump discharge pressure, and at a drain position by a spring associated with the displacement control piston assembly via a feedback lever, and the second control valve being placed at a first position by the pump discharge pressure for communicating the pump port and the large diameter chamber and at a second position by a load pressure for communicating the pump port and the large diameter chamber and at a second position by a load pressure for communicating the large diameter chamber to the first control valve, the flow path area is varied at the intermediate position of a fluid passage from the large diameter chamber to the pump discharge passage or to a tank. With the construction set forth above, supply speed and drain speed of the pump discharge pressure to and from the large diameter chamber of the displacement control piston assembly is varied by variation of cross-sectional flow area at the intermediate position of the fluid passage. By this, response characteristics in displacement control of the variable displacement hydraulic valve can be adjusted to improve operability of a work implement.

Abstract translation: PCT No.PCT / JP93 / 01577 Sec。 371日期1995年04月13日 102（e）日期1995年4月13日PCT提交1993年10月29日PCT公布。 第WO94 / 10447号公报 日期1994年5月11日提供了一种用于可变排量液压泵的排量控制系统，其具有位移控制活塞组件（6），其具有用于操作可变排量液压泵的位移控制构件（5）的大直径室（7） 选择性地沿较大排量的方向和位移较大的方向选择第一控制阀（8）和第二控制阀（9），用于选择性地将排量控制活塞组件的大直径室与泵排出管线和罐连通， 所述第一控制阀通过泵排出压力被放置在供给位置，并且通过与所述排量控制活塞组件相关联的弹簧经由反馈杆在排放位置处，并且所述第二控制阀被所述泵放置在第一位置 排出压力，用于使泵口和大直径室连通，并在第二位置通过用于连通t的负载压力 通过用于将大直径室连通到第一控制阀的负载压力，泵泵口和大直径室在第二位置处，流路面积在从大直径室到流体通道的流体通道的中间位置处变化 泵排出通道或罐。 通过上述结构，通过位移控制活塞组件的大直径室的泵排出压力的供给速度和排出速度由于流体通道的中间位置处的横截面积面积的变化而变化。 由此，能够调整变量液压阀的排量控制的响应特性，提高作业工具的操作性。

公开(公告)号：US5562424A

公开(公告)日：1996-10-08

申请号：US527134

申请日：1995-09-12

Applicant: Noah D. Manring

Inventor： Noah D. Manring

IPC: F04B49/08

CPC classification number: F04B49/08 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: A pump displacement control for a variable displacement pump includes a torque control valve serially disposed between a remotely controllable displacement control valve and a variable torque limiter in axial alignment within a common bore. A displacement control sleeve is disposed within the bore for normally controlling the fluid pressure in an actuating chamber of an actuator connected to a swashplate of the pump when the pump discharge pressure is below a predetermined high pressure. The torque control valve assumes control of pump displacement when the pump discharge pressure exceeds the predetermined high pressure and includes a sleeve and a valve spool movable relative to each other to establish a first condition communicating discharge pressure into the actuator chamber to move the swashplate toward a minimum displacement position or a second condition communicating the actuating chamber with an exhaust passage so that the swashplate is moved toward its maximum displacement position. A feedback piston continuously subjected to pump discharge pressure moves the valve spool in a direction to establish the first condition when discharge pressure exceeds the predetermined high pressure. The feedback piston is disposed in axial alignment with the valve spool within an insert disposed within the displacement control sleeve. The predetermined high pressure is varied by increasing or decreasing the level of a control pressure directed into a bore receiving a piston acting on the opposite end of the valve spool.

Abstract translation: 用于可变排量泵的泵排量控制器包括串联地设置在可控位移控制阀和在公共孔内轴向对准的可变扭矩限制器之间的扭矩控制阀。 位移控制套筒设置在孔内，用于当泵排出压力低于预定高压时，正常地控制连接到泵的斜盘的致动器的致动室中的流体压力。 当泵排出压力超过预定的高压时，转矩控制阀采取泵排量的控制，并且包括可相对于彼此移动的套筒和阀芯，以建立将排出压力连接到致动器室中的第一状态，以使斜盘朝向 最小位移位置或使致动室与排气通道相通的第二条件，使得斜盘向其最大位移位置移动。 连续经受泵排出压力的反馈活塞在排出压力超过预定高压时使阀芯沿一个方向移动以建立第一条件。 所述反馈活塞在位于所述位移控制套筒内的插入件内与所述阀芯轴向对准地设置。 预定的高压通过增加或减小引导到接收作用在阀芯的相对端上的活塞的孔中的控制压力的水平来改变。

公开(公告)号：US4798086A

公开(公告)日：1989-01-17

申请号：US29498

申请日：1987-03-23

Applicant: John Styfhoorn

Inventor： John Styfhoorn

IPC: F04B51/00 ,  F15B19/00

CPC classification number: F04B51/00 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2207/044

Abstract: Test benches are useful, for example, for testing the operation of new or repaired pumps and motors. Current test benches involve directly driving the test pump with an electric motor, the horsepower of which must at least equal the horsepower rating of the test pump. The subject test bench utilizes an electric motor to drive a variable displacement pressure compensated pump. The discharge fluid from the pump drives a variable displacement hydraulic motor which in turn drives the test pump. The discharge fluid from the test pump is also directed to the hydraulic motor to add additional driving energy thereto in a regenerative manner. Thus, pumps having a higher horsepower rating several times greater than the horsepower rating of the electric motor can be effectively tested at their maximum rated displacement and pressure settings. The electric motor also drives another variable displacement pressure compensated pump, the discharge flow of which is directed to a test motor. The test motor in turn drives the variable displacement motor which thus functions as a pump to direct pressurized fluid to the variable displacement pump, which in turn functions as a motor to add additional power to the variable displacement pump through the electric motor in a regenerative manner. Thus, motors having a higher horsepower rating than the horsepower of the electric motor can also be tested on the same test bench.

Abstract translation: 测试台是有用的，例如，用于测试新的或修理的泵和电机的操作。 当前的试验台包括用电动马达直接驱动试验泵，其马力必须至少等于试验泵的马力额定值。 主题测试台利用电动机驱动可变排量压力补偿泵。 来自泵的排出流体驱动可变排量的液压马达，该马达又驱动测试泵。 来自试验泵的排出流体也被引导到液压马达，以再生的方式向其中添加额外的驱动能量。 因此，可以在其最大额定位移和压力设置下有效地测试具有比电动马达的马力额定值高几倍的马力额定功率的泵。 电动机还驱动另一个可变排量压力补偿泵，其排放流量被引导到测试电动机。 测试电动机又驱动可变容积电动机，其作为泵，以将加压流体引导到可变排量泵，变量泵又作为电动机，以再生方式通过电动机向可变排量泵增加附加功率 。 因此，具有比马达的马力更高的马力功率的马达也可以在相同的测试台上进行测试。

公开(公告)号：US4637781A

公开(公告)日：1987-01-20

申请号：US717197

申请日：1985-03-28

Applicant: Teruo Akiyama ,  Katsuyuki Sasaki ,  Takaichi Saigo

Inventor： Teruo Akiyama ,  Katsuyuki Sasaki ,  Takaichi Saigo

IPC: F04B49/00 ,  F04B49/06 ,  F04B49/08

CPC classification number: F04B49/06 ,  F04B49/002 ,  F04B49/08 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2201/1204

Abstract: A fluid operated pump displacement control system is provided wherein a self pressure is defined as a first control signal, and characterized in that an arbitrary switchable second control signal different from the first control signal is added to the first control signal, and a displacement is adapted to be switched to a displacement corresponding to a value of the second control signal as added to the first control signal. Further, a fluid operated pump displacement control system is provided comprising a control circuit connected to respective displacement control devices of variable displacement pumps and adapted to be operated by discharge pressure fluid from a discrete control pump. A variable torque control valve has a proportional electromagnetic solenoid provided in a circuit connecting the control circuit with the control pump and is adapted to produce a pressure reduction by a discharge fluid pressure of the variable displacement pumps and a propelling force of the proportional electromagnetic solenoid. A detector detects set output conditions of a prime mover for driving the variable displacement pumps, and current is supplied to the proportional electromagnetic solenoid according to the difference between a set reference rotational speed in each of the set output conditions and an actual rotational speed of the prime mover.

Abstract translation: 提供了一种流体动力泵位移控制系统，其中自身压力被定义为第一控制信号，其特征在于，与第一控制信号不同的任意可切换的第二控制信号被加到第一控制信号上， 切换到与第一控制信号相加的对应于第二控制信号的值的位移。 此外，提供一种流体操作的泵排量控制系统，其包括连接到可变排量泵的各个排量控制装置并且适于由来自离散控制泵的排出压力流体操作的控制电路。 可变转矩控制阀具有比例电磁线圈，其设置在连接控制电路与控制泵的电路中，并且适于通过可变排量泵的排出流体压力和比例电磁螺线管的推进力产生减压。 检测器检测用于驱动可变排量泵的原动机的设定输出条件，并且根据设定的输出条件中的设定的基准转速与实际的转速之间的差异将电流提供给比例电磁螺线管 原动机。