公开(公告)号：US6010309A

公开(公告)日：2000-01-04

申请号：US16601

申请日：1998-01-30

Applicant: Fujitoshi Takamura ,  Seiichi Fuchita ,  Junichi Tanaka

Inventor： Fujitoshi Takamura ,  Seiichi Fuchita ,  Junichi Tanaka

IPC: F02D29/04 ,  E02F9/22 ,  F04B49/06 ,  F04B49/08

CPC classification number: E02F9/2235 ,  F04B49/08 ,  F04B2201/12041 ,  F04B2203/0209

Abstract: A controller, for a variable capacity pump, prevents engine stalls due to rapid changes in operating load by increasing the pump absorption torque when the engine speed is high so as to increase the work amount and by reducing the pump absorption torque when the engine speed is low. The controller receives a signal from an engine speed sensor for detecting engine speed. A pump absorption torque curve is pre-set so as to be consecutively stepped with respect to engine speed so as to intersect at an engine rated point. The pump absorption torque is then calculated in accordance with increases or decreases in engine speed. The pump absorption torque is then set to prescribe values based on the results of these calculations and an instruction is outputted to a control valve in such a manner as to regulate a regulator of the variable capacity pump.

Abstract translation: 用于可变容量泵的控制器通过在发动机转速高时增加泵的吸收转矩来防止由于操作负载的快速变化引起的发动机失速，从而增加工作量，并且当发动机转速为 低。 控制器接收来自用于检测发动机转速的发动机转速传感器的信号。 泵吸收扭矩曲线被预先设定为相对于发动机转速连续地阶梯，以便在发动机额定点处相交。 然后根据发动机转速的增加或减少来计算泵吸收扭矩。 然后将泵吸收扭矩设定为基于这些计算的结果规定值，并且以调节可变容量泵的调节器的方式将指令输出到控制阀。

公开(公告)号：US5554007A

公开(公告)日：1996-09-10

申请号：US324199

申请日：1994-10-17

Applicant: Thomas A. Watts

Inventor： Thomas A. Watts

IPC: F04B49/06 ,  F04B1/32 ,  F04B27/08 ,  F04B1/30

CPC classification number: F04B1/324 ,  F04B2201/1201 ,  F04B2201/12041 ,  F04B2205/05

Abstract: A variable displacement axial piston hydraulic unit includes first and second control pockets individually disposed between first and second arcuate shaped fluid passages, a first electrohydraulic valve for controlling fluid flow between the first control pocket and the first fluid passage and a second electrohydraulic valve for controlling fluid flow between the second passage and the second control pocket. A controller outputs first and second control signals to the first and second electrohydraulic valves in response to receiving a command signal so that the tilt angle of a swashplate is controlled to obtain a desired operating parameter. An angle detector, a pressure detector, and a speed detector provide feedback signals to the controller for determining when the desired operating parameter has been obtained.

Abstract translation: 可变位移轴向柱塞液压单元包括分别设置在第一和第二弧形流体通道之间的第一和第二控制腔，用于控制第一控制腔和第一流体通道之间的流体流动的第一电动液压阀和用于控制流体的第二电动液压阀 在第二通道和第二控制口袋之间流动。 响应于接收到命令信号，控制器将第一和第二控制信号输出到第一和第二电液阀，从而控制斜盘的倾斜角以获得期望的操作参数。 角度检测器，压力检测器和速度检测器向控制器提供反馈信号，以确定何时已获得期望的操作参数。

公开(公告)号：US5046927A

公开(公告)日：1991-09-10

申请号：US518655

申请日：1990-05-03

Applicant: Junichi Ohno ,  Chuichi Kawamura ,  Kazuya Kimura

Inventor： Junichi Ohno ,  Chuichi Kawamura ,  Kazuya Kimura

IPC: F04B39/00 ,  F04B27/10 ,  F04B27/14 ,  F04B27/18 ,  F04B49/06

CPC classification number: F04B27/1804 ,  F04B27/1036 ,  F04B49/06 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1854 ,  F04B2027/1895 ,  F04B2201/12041

Abstract: A variable capacity wobble plate type compressor having a non-rotatory wobble plate supported on a magnetic material support member to non-rotatively wobble to move compressing pistons in cylinder bores, a steel drive shaft driven by a drive source via a solenoid-operated clutch and causing the non-rotative wobble of the wobble plate at a given angle of inclination that is changed to vary the capacity of the compressor, and a capacity detecting unit provided with a permanent magnet attached to an outer periphery of the wobble plate, a magnetic sensor fixedly attached to the crankcase of the outer casing, for sensing an approach and departure of the permanent magnet of the wobble plate. The magnetic sensor generates electric signals indicating the approach and departure of the permanent magnet of the wobble plate, and a binary circuit electrically connected to the magnetic sensor converts the electric signals of the magnetic sensor into electric binary signals by which the capacity of the compressor is determined. The capacity detecting unit is also provided with an arrangement wherein a magnetic flux delivered from the permanent magnet flows in a direction opposite to that of a magnetic flux leaking from the solenoid-operated clutch through the drive shaft and the support member to prevent erroneous electric binary signals when the permanent magnet attached to the wobble plate is close to the magnetic sensor.

Abstract translation: 一种可变容量摇摆板式压缩机，其具有支撑在磁性材料支撑构件上的非旋转摆动板，以不旋转地摆动以在气缸孔中压缩活塞，由驱动源通过电磁离合器驱动的钢驱动轴， 导致摆动板的非旋转摆动在给定的倾斜角度改变以改变压缩机的容量，并且容量检测单元设置有安装在摆盘的外周的永磁体，磁传感器 固定地附接到外壳的曲轴箱，用于感测摆盘的永磁体的接近和离开。 磁传感器产生指示摆动板的永久磁铁的接近和离开的电信号，并且电连接到磁传感器的二进制电路将磁传感器的电信号转换成电二进制信号，通过该二进制信号将压缩机的容量 决心。 容量检测单元还具有这样一种装置，其中从永磁体输送的磁通量通过驱动轴和支撑构件沿与从电磁离合器泄漏的磁通相反的方向流动，以防止错误的电二进制 附着在摆盘上的永磁体靠近磁传感器时的信号。

公开(公告)号：US4867648A

公开(公告)日：1989-09-19

申请号：US146107

申请日：1988-01-20

Applicant: Koji Murayama

Inventor： Koji Murayama

IPC: F04B27/14 ,  F04B27/18

CPC classification number: F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1854 ,  F04B2027/1859 ,  F04B2201/12041 ,  F04B2205/02 ,  F04B2207/03

Abstract: A wobble plate type compressor is equipped with a device which can be selectively activated in a manner to induce the wobble plate to assume a position wherein the displacement of the compressor is reduced to zero and thus obviate the need for a clutch for such purposes. The device further includes an arrangement which biases the wobble plate toward a position wherein a positive displacement of the compressor will occur when in a non-activated state. The strength of this bias is insufficient to interfere with the control of the wobble plate inclination by the pressure prevailing in the chamber in which the plate is disposed.

Abstract translation: 摇摆板式压缩机配备有能够以使诱导摆动盘呈现其中压缩机的位移减小到零的方式被选择性地启动的装置，从而避免需要用于这种目的的离合器。 该装置还包括一种将摇摆板偏压到当处于非激活状态时压缩机的正位移将发生的位置的装置。 该偏压的强度不足以通过其中设置板的室中的压力来干扰摆盘倾斜的控制。

公开(公告)号：US4533299A

公开(公告)日：1985-08-06

申请号：US608566

申请日：1984-05-09

Applicant: James C. Swain ,  David L. Thomas

Inventor： James C. Swain ,  David L. Thomas

IPC: F04B27/14 ,  F04B25/04 ,  F04B27/10 ,  F04B27/18 ,  F04B1/26

CPC classification number: F04B27/1072 ,  F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1854 ,  F04B2027/1895 ,  F04B2201/12041

Abstract: A wobble plate compressor which is adapted to vary the angularity of the wobble plate during rotation in response to the difference between the resultant reaction force exerted by the pistons on their compression and suction strokes and the pressure in the crankcase. The compressor has a passage with an orifice communicating a lower pressure space therein with the interior of the crankcase, a communication passage communicating a higher pressure space therein with the interior of the crankcase, and a control valve means for controlling the opening of the communication passage. Preferably, the cross-sectional area of the above orifice passage is set at such a value as to permit blow-by gas leaking from the cylinders into the crankcase to escape from the crankcase into the lower pressure space at a flow rate at least equal to the maximum possible flow rate at which the blow-by gas leaks from the cylinders into the crankcase.

Abstract translation: 一种摆盘式压缩机，其适于在旋转期间响应于由活塞在其压缩和吸入冲程上产生的反作用力与曲轴箱中的压力之间的差异来改变摆盘的角度。 压缩机具有通道，其通孔与其内部的压力空间连通，曲轴箱的内部，连通通道，其中较高的压力空间与曲轴箱的内部连通;控制阀装置，用于控制连通通道的开口 。 优选地，上述孔通道的横截面面积被设定为允许从气缸泄漏到曲轴箱中的窜气以至少等于或等于的流量从曲轴箱逸出到下压力空间 窜漏气体从气缸泄漏到曲轴箱中的最大可能流速。