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1. 发明申请

US20060083625A1 Control valve for variable displacement compressor 审中-公开
标题翻译：变排量压缩机控制阀
公开(公告)号：US20060083625A1
公开(公告)日：2006-04-20
申请号：US11247257
申请日：2005-10-12
申请人： Katsumi Koyama , Morimitsu Kajiwara , Takeshi Kawaguchi
发明人： Katsumi Koyama , Morimitsu Kajiwara , Takeshi Kawaguchi
IPC分类号： F04B1/06 , F04B1/26
CPC分类号： F04B27/1804 , F04B2027/1813 , F04B2027/1827 , F04B2027/1854 , F04B2027/1859
摘要： To provide a control valve for a variable displacement compressor, which is improved in slidability of a shaft that transmits a change in suction pressure to a valve element, and enhanced in controllability. In a control valve for a variable displacement compressor in which a plunger of a solenoid is divided into two, i.e. a first plunger and a second plunger, and a diaphragm is disposed therebetween for sensing suction pressure, the second plunger is held by a spring urging the second plunger in a direction away from the diaphragm, and is caused to be simply in contact with a shaft that transmits a change in the suction pressure sensed by the diaphragm to a valve element. With this construction, even when an attractive force is generated by a solenoid to move the second plunger, no couple of forces act on the shaft, and hence the shaft is prevented from being spoiled in slidability, which makes it possible to enhance controllability.
摘要翻译：提供一种用于可变排量压缩机的控制阀，其提高了将吸入压力变化传递给阀元件的轴的滑动性，并提高了可控制性。在用于可变排量压缩机的控制阀中，其中螺线管的柱塞被分成两个，即第一柱塞和第二柱塞，并且隔膜设置在其间用于感测吸入压力，第二柱塞由弹簧推动所述第二柱塞沿远离所述隔膜的方向，并且被简单地与将所述隔膜感测的吸入压力的变化传递到阀元件的轴接触。通过这种结构，即使当螺线管产生吸引力来移动第二柱塞时，也不会有一对力作用在轴上，因此防止轴被滑动地损坏，这使得可以提高可控性。

2. 发明申请

US20050169768A1 Control valve for variable displacement compressor 有权
标题翻译：变排量压缩机控制阀
公开(公告)号：US20050169768A1
公开(公告)日：2005-08-04
申请号：US11041226
申请日：2005-01-25
申请人： Takeshi Kawaguchi , Morimitsu Kajiwara
发明人： Takeshi Kawaguchi , Morimitsu Kajiwara
IPC分类号： F04B49/00 , F04B1/26 , F04B7/00 , F04B27/14 , F04B27/18 , F04B39/00 , F16K31/06
CPC分类号： F04B27/1804 , F04B2027/1827 , F04B2027/1854 , F04B2027/1859
摘要： To provide a control valve for a variable displacement compressor, including a plunger divided into separate members, which is improved in the attractive force characteristic and reduced in manufacturing costs. In a control valve for a variable displacement compressor, a predetermined space is formed between a holder and a small-diameter portion of a second plunger inserted into the holder, so that it is possible to reduce an attractive force acting in the radial direction of the second plunger during energization of a solenoid. On the other hand, opposed surfaces and 41a axially opposed to each other are formed on a large-diameter portion of the second plunger and the holder, respectively, and when the solenoid is energized, a magnetic circuit is formed via the opposed surfaces. This arrangement makes it possible to increase an attractive force in the operating direction of the second plunger. As a result, when the solenoid is energized, it is possible to relatively increase an attractive force in the valve-closing direction of a valve element connected to the second plunger to thereby enhance the attractive force characteristic of the whole control valve for a variable displacement compressor.
摘要翻译：提供一种用于可变排量压缩机的控制阀，其包括被分成分离的构件的柱塞，其吸引力特性得到改善并且制造成本降低。在用于可变排量压缩机的控制阀中，在保持器和插入到保持器中的第二柱塞的小直径部分之间形成预定的空间，从而可以减小沿径向方向作用的吸引力在螺线管通电期间第二柱塞。另一方面，分别在第二柱塞和保持器的大直径部分上形成有相对的彼此相对的表面和41a，并且当螺线管通电时，经由相对的表面形成磁路。这种布置使得可以增加第二柱塞的操作方向上的吸引力。结果，当螺线管通电时，可以相对地增加连接到第二柱塞的阀元件的关闭方向上的吸引力，从而增强用于可变位移的整个控制阀的吸引力特性压缩机。

3. 发明授权

US07381031B2 Control valve for variable displacement compressor 有权
标题翻译：变排量压缩机控制阀
公开(公告)号：US07381031B2
公开(公告)日：2008-06-03
申请号：US11041226
申请日：2005-01-25
申请人： Takeshi Kawaguchi , Morimitsu Kajiwara
发明人： Takeshi Kawaguchi , Morimitsu Kajiwara
IPC分类号： F04B1/26
CPC分类号： F04B27/1804 , F04B2027/1827 , F04B2027/1854 , F04B2027/1859
摘要： A control valve for a variable displacement compressor that is mounted on the variable displacement compressor to control pressure within a hermetic crankcase to thereby change the discharging capacity of a refrigerant.
摘要翻译：一种用于可变排量压缩机的控制阀，其安装在可变排量压缩机上以控制密封曲轴箱内的压力，从而改变制冷剂的排放能力。

4. 发明申请

US20050053474A1 Capacity control valve for variable displacement compressor 审中-公开
标题翻译：变量压缩机容量调节阀
公开(公告)号：US20050053474A1
公开(公告)日：2005-03-10
申请号：US10918420
申请日：2004-08-16
申请人： Hisatoshi Hirota , Morimitsu Kajiwara , Ryosuke Yoshihiro
发明人： Hisatoshi Hirota , Morimitsu Kajiwara , Ryosuke Yoshihiro
IPC分类号： F04B49/00 , B60H1/32 , F04B27/18 , F04B49/06 , F04B1/26 , F04B1/12
CPC分类号： F04B27/1804 , F04B2027/1813 , F04B2027/1827 , F04B2027/1831 , F04B2027/1854 , F04B2027/1877
摘要： To provide a capacity control valve for a variable displacement compressor of a Pd-Ps differential pressure-controlled type, which suppresses overshooting of the differential pressure between the discharge pressure Pd and the suction pressure Ps which can occur when the differential pressure is changed in response to a stepwise change in the solenoid current. The capacity control valve includes a valve section having a Pd-Pc valve for control of the flow rate of refrigerant flowing from a discharge chamber to a crankcase and a Pc-Ps valve for control of the flow rate of refrigerant flowing from the crankcase to a suction chamber operating in a manner interlocked with the Pd-Pc valve. A spool valve element is provided on a valve element of the Pc-Ps valve, whereby in a stroke region where the Pd-Pc valve is toward the fully-closed position, refrigerant is allowed to pass through the clearance between the spool valve element and the valve hole of the Pc-Ps valve, to cause the Pc-Ps valve to have a characteristic that the opening area thereof does not change in response to a change in stroke. This makes it possible to suppress sharp changes in the pressure Pc in the crankcase due to the existence of the clearance, even if the solenoid current is stepwise sharply changed.
摘要翻译：为了提供用于Pd-Ps差压控制型的可变排量压缩机的容量控制阀，其抑制当压差响应变化时可能发生的排出压力Pd和吸入压力Ps之间的压差过大到螺线管电流的逐步变化。容量控制阀包括具有用于控制从排出室向曲轴箱流动的制冷剂的流量的Pd-Pc阀的阀部和用于控制从曲轴箱流向曲轴箱的制冷剂流量的Pc-Ps阀吸入室以与Pd-Pc阀互锁的方式操作。在Pc-Ps阀的阀元件上设置有滑阀元件，由此在Pd-Pc阀朝向完全关闭位置的行程区域中，允许制冷剂通过滑阀元件和 Pc-Ps阀的阀孔，以使Pc-Ps阀具有响应于行程变化而使其开口面积不变化的特性。这使得即使螺线管电流逐步急剧变化，也可以抑制由于存在间隙而导致的曲轴箱中的压力Pc的急剧变化。

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