公开(公告)号：US06543672B2

公开(公告)日：2003-04-08

申请号：US09873472

申请日：2001-06-04

申请人： Hisatoshi Hirota ,  Shiniji Saeki ,  Kouji Habu

发明人： Hisatoshi Hirota ,  Shiniji Saeki ,  Kouji Habu

IPC分类号： B23P1500

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1859 ,  Y10T29/49236 ,  Y10T29/49256

摘要： A vacuum chamber-forming method for forming a vacuum chamber in a power element of a control valve for a variable capacity compressor through a reduced number of steps. A power element is assembled in the atmospheric air by arranging a disk, a diaphragm, a disk, a spring and an upper housing on a lower housing, caulking the periphery of the lower housing to the periphery of the upper housing, and then soldering the junction of the upper and lower housings. The assembled power element is placed in a vacuum container, and a small hole formed in the upper housing is subjected to spot welding in the vacuum atmosphere, whereby the small hole is sealed by a weld metal.

摘要翻译： 一种用于通过减少步数形成用于可变容量压缩机的控制阀的功率元件中的真空室的真空室形成方法。 功率元件通过在下壳体上布置盘，隔膜，盘，弹簧和上壳体而组装在大气中，将下壳体的周边铆接到上壳体的周边，然后焊接 上下壳体的连接处。 组装的功率元件放置在真空容器中，并且形成在上壳体中的小孔在真空气氛中进行点焊，由此小孔被焊接金属密封。

公开(公告)号：US06520419B2

公开(公告)日：2003-02-18

申请号：US09875801

申请日：2001-06-06

申请人： Hisatoshi Hirota ,  Yuusuke Inoue

发明人： Hisatoshi Hirota ,  Yuusuke Inoue

IPC分类号： G05D2700

CPC分类号： F25B41/06 ,  F25B31/004 ,  F25B2309/06 ,  F25B2341/063 ,  F25B2600/2505 ,  Y10T137/7848

摘要： A supercooling degree control type expansion valve which is capable of preventing seizure of a compressor when the compressor is at a low load condition. A valve seat is integrally formed with a body, in a refrigerant passage through which refrigerant flows via a strainer, and a valve element arranged in a manner opposed to the valve seat and urged by a spring from the downstream side of the refrigerant passage so as to be seated onto the valve seat, whereby a differential pressure regulating valve is constructed. A spring-receiving member is fitted in a downstream end of the body, and the spring-receiving member is formed with a restriction passage. The valve element has an oil passage formed therethrough, and even when the differential pressure regulating valve is closed during low load operation of the compressor, it is possible to cause the refrigerant to flow at the minimum flow rate required via the oil passage. This makes it possible to return oil contained in the refrigerant to the compressor, whereby the seizure of the compressor can be prevented.

摘要翻译： 一种过冷度控制型膨胀阀，其能够防止当压缩机处于低负载状态时压缩机的卡塞。一个阀座与制冷剂通道一体地形成在制冷剂通道中，制冷剂通过过滤器流过， 阀元件以与阀座相对的方式布置，并且通过来自制冷剂通道的下游侧的弹簧被推压以便被安置在阀座上，从而构成差压调节阀。 在本体的下游端安装有弹簧接收构件，弹簧接收构件形成有限制通道。 阀元件具有通过其形成的油路，并且即使当在压缩机的低负载运行期间压差调节阀关闭时，也可以使制冷剂以通过油路所需的最小流量流动。 这使得可以将包含在制冷剂中的油返回到压缩机，从而可以防止压缩机的卡住。

公开(公告)号：US06302656B1

公开(公告)日：2001-10-16

申请号：US09412144

申请日：1999-10-05

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F04B126

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1854 ,  F04B2027/1859

摘要： A solenoid controlled valve for controlling the displacement of a variable displacement compressor the moveable iron core and the valve driving rod actuating the valve responsible for the displacement of the compressor are provided between said valve and a pressure sensitive part which is actuated by the suction chamber pressure, so that with the solenoid de-energized the valve is kept open by the force of an operational spring while said differential pressure acting at said pressured sensitive part is hindered to act upon said valve. In a valve combinaton of a solenoid controlled valve and a valve for opening or closing a suction passage between a low-pressure refrigerant piping conduit and the suction chamber said valve is controlled directly by said solenoid controlled valve and by refrigerant pressure without a mechanical transmission mechanism.

摘要翻译： 用于控制可变排量压缩机的位移的电磁控制阀设置在所述阀和由吸入室压力驱动的压力敏感部件之间的可移动铁芯和致动负责压缩机排量的阀驱动杆 使得当螺线管断电时，通过操作弹簧的力将阀保持打开，同时作用在所述受压敏感部分上的所述压差被阻碍作用在所述阀上。 在电磁控制阀的阀组合和用于打开或关闭低压制冷剂管道导管和吸入室之间的吸入通道的阀门之间，所述阀门由所述电磁控制阀直接控制，并且在没有机械传动机构的情况下由制冷剂压力控制 。

公开(公告)号：US6145541A

公开(公告)日：2000-11-14

申请号：US224017

申请日：1998-12-31

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F16K11/07 ,  F16K11/044 ,  F16K11/16 ,  F25B41/04 ,  E03C1/00 ,  E03B1/00 ,  F17D3/03

CPC分类号： F25B41/046 ,  F16K11/044 ,  F16K11/166 ,  F16K11/168

摘要： A four-way selector valve comprises a valve case connected with a first pipe, a separate chamber communicating with a second pipe, a first valve seat ring in communicating path between a connecting portion of a third pipe and a space of said valve case, a second valve seat ring in a communicating path between a connecting portion of a fourth pipe and said space, a moveable valve element assembly for alternating co-operation with said first and second valve seat rings, and a valve drive means connected to said moveable valve element assembly to at least selectively interconnect said first pipe either with said third pipe or said fourth pipe and simultaneously the remaining one of said third or fourth pipes with said second pipe, wherein first and second valve disks are pressed essentially in the direction of the axis of the associated valve seat ring in closing direction by remanent forces onto said first and second valve seat rings, and first and second cylindrical and hollow valves are moveable substantially in the direction of the axis of the associated valve seat ring into respective lifting engagement with said valve disks to obtain different interconnecting states between the four pipes.

摘要翻译： 四通选择阀包括与第一管连接的阀壳，与第二管连通的分离室，在第三管的连接部分和所述阀壳的空间之间的连通路径中的第一阀座环， 第二阀座环，位于第四管和所述空间的连接部分之间的连通路径中，与所述第一和第二阀座环交替配合的可移动阀元件组件，以及连接到所述可动阀元件的阀驱动装置 组件，用于至少将所述第一管道与所述第三管道或所述第四管道选择性地互连，同时所述第三或第四管道中的剩余的管道与所述第二管道连通，其中第一和第二阀盘基本上沿着 相关的阀座环在关闭方向上通过剩余力在所述第一和第二阀座环上，以及第一和第二圆柱形和中空阀ar e基本上可以在相关联的阀座环的轴线方向上移动到与所述阀盘相应的提升接合中，以在四个管之间获得不同的互连状态。

公开(公告)号：US5702235A

公开(公告)日：1997-12-30

申请号：US629606

申请日：1996-04-09

申请人： Hisatoshi Hirota ,  Naoyuki Ito

发明人： Hisatoshi Hirota ,  Naoyuki Ito

IPC分类号： F04B27/18 ,  F04B1/26

CPC分类号： F04B27/1804

摘要： A capacity control device for variable-capacity compressors with a high-pressure valve portion 36 for opening or closing the communication between the discharge chamber 21 and the crank case 12; a low-pressure valve portion 41 for opening or closing the communication between the suction chamber 20 and the crank case 12; a valve open-close member 35 for opening or closing so as to reverse the open-close relationship between the high-pressure valve portion 36 and the low-pressure valve portion 41 by advancing or retreating; a pressurising chamber 53 for applying pressure to the valve open-close member 35 in a direction that opens the high-pressure valve portion 36 by a wider effective pressure-receiving area than that of the high-pressure valve portion 36. The device is driven with only small actuation forces by an electromagnetic solenoid 50 to open or close a communicating path between the discharge chamber 21 and the pressurising chamber 53 (FIG. 1).

摘要翻译： 一种用于可变容量压缩机的容量控制装置，具有用于打开或关闭排出室21和曲轴箱12之间的连通的高压阀部分36; 用于打开或关闭吸入室20和曲轴箱12之间的连通的低压阀部分41; 用于打开或关闭的阀开启构件35，以通过前进或后退来反转高压阀部分36和低压阀部分41之间的开 - 关关系; 加压室53，其通过比高压阀部36更宽的有效受压面积向打开高压阀部36的方向向阀开闭部件35施加压力。该装置被驱动 仅通过电磁螺线管50的小的致动力来打开或关闭排出室21和加压室53（图1）之间的连通路径。

公开(公告)号：US07316118B2

公开(公告)日：2008-01-08

申请号：US10890319

申请日：2004-07-14

申请人： Hisatoshi Hirota ,  Michio Matsumoto

发明人： Hisatoshi Hirota ,  Michio Matsumoto

IPC分类号： F25B41/04 ,  G05D27/00

CPC分类号： F25B41/062 ,  F25B2341/0683

摘要： To provide an expansion valve having a low-pressure passage that is bent at right angles therein, which is reduced in untoward noise and noise of the flow of refrigerant generated when the refrigerant passes through the low-pressure passage. In an intersecting portion of a low-pressure passage, the axis of a port for introducing refrigerant returned from an evaporator, and the axis of a port for guiding out refrigerant having passed through a body block to a compressor are orthogonal to each other. A hole is formed in the body block in a direction of insertion of a shaft that transmits a driving force from a power element to a valve element, and a holder for holding the shaft. When holes coaxial with the ports, respectively, are formed by drills having the same diameter as that of the hole, the holes are formed in a manner such that the tip of one drill does not extend beyond the hole formed by the other drill, to make inner walls on an outer peripheral side along which refrigerant flows at an increased speed, smoothly continuous, without forming any recess or edge portion having a boundary portion with an angle equal to or smaller than a right angle.

摘要翻译： 提供一种具有在其中成直角弯曲的低压通道的膨胀阀，这降低了当制冷剂通过低压通道时产生的制冷剂流动的不利噪声和噪音。 在低压通路的交叉部分中，用于引导从蒸发器返回的制冷剂的端口的轴线和用于将已经通过体块的制冷剂引导到压缩机的端口的轴线彼此正交。 在主体块中沿着将来自动力元件的驱动力传递到阀元件的轴的插入方向和用于保持轴的保持器形成孔。 当与端口同轴的孔由具有与孔的直径相同的直径的钻头形成时，孔以这样的方式形成，使得一个钻头的尖端不延伸超过由另一钻头形成的孔， 使制冷剂在外周侧以增加的速度流动的内壁，平滑地连续，而不形成具有等于或小于直角的角度的边界部分的任何凹部或边缘部分。

公开(公告)号：US20070264134A1

公开(公告)日：2007-11-15

申请号：US11826250

申请日：2007-07-13

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F04B1/26

CPC分类号： F04B27/1804 ,  F04B2027/1827 ,  F04B2027/1854

摘要： To provide a control valve for variable displacement compressor employing ON/OFF control, which is capable of taking measures for occurrence of an abnormally high pressure. When a solenoid is OFF, a spring causes a movable core to move a stopper in a direction away from a stationary core and to thereby separate a shaft fixed to the stopper from a valve seat, resulting in opening the control valve. When the solenoid is ON, the movable core is attracted by the stationary core by a stroke longer than that of the shaft, and a spring causes the shaft to seat on the valve seat, resulting in closing the control valve. If a discharge pressure Pd increases to an abnormally high pressure, a differential pressure between the discharge pressure Pd and a pressure Pc in a crankcase pushes the shaft while compressing the spring, so that the discharge pressure Pd flows out to the crankcase. Therefore, the pressure Pc in the crankcase increases and the variable displacement compressor shifts to operate at a minimum discharge capacity, resulting in decreasing the abnormally high pressure.

摘要翻译： 提供一种采用ON / OFF控制的可变排量压缩机的控制阀，其能够采取措施来发生异常高压。 当螺线管断开时，弹簧使可动芯沿远离固定铁芯的方向移动止动器，从而将固定在止动件上的轴与阀座分开，从而打开控制阀。 当螺线管接通时，可动铁芯被固定铁心吸引的行程长于轴的行程，弹簧使轴座位于阀座上，导致关闭控制阀。 如果排出压力Pd增加到异常高的压力，则排出压力Pd与曲轴箱内的压力Pc之间的压差在压缩弹簧的同时推动轴，使得排出压力Pd流出到曲轴箱。 因此，曲轴箱中的压力Pc增加，并且可变容积压缩机转变为以最小放电容量操作，导致异常高压降低。

公开(公告)号：US20070180854A1

公开(公告)日：2007-08-09

申请号：US11701497

申请日：2007-02-02

申请人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Masaaki Tonegawa ,  Ryosuke Satake

发明人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Masaaki Tonegawa ,  Ryosuke Satake

IPC分类号： F25B41/04 ,  F25B41/00 ,  F25B41/06

CPC分类号： F25B41/062 ,  F25B40/00 ,  F25B2309/061 ,  F25B2341/0683 ,  F25B2500/18 ,  F25B2600/2505

摘要： To provide an expansion device which controls high pressure-side pressure such that the pressure does not exceed a predetermined pressure in terms of absolute pressure, while operating in response to differential pressure between pressure at an inlet thereof and pressure at an outlet thereof. An expansion device comprises an orifice for expanding refrigerant, a valve element disposed on a downstream side of a valve hole and urged by a shape-memory alloy spring in a valve-opening direction, a shaft disposed to extend through the valve hole and having one end thereof rigidly fixed to the valve element, and a spring provided at the other end of the shaft, for receiving load generated by differential pressure between pressure of refrigerant at an inlet of the device and pressure of refrigerant at an outlet thereof, in a valve-opening direction. The shape-memory alloy spring senses the temperature of refrigerant on the downstream side to perform temperature-dependent correction of a set value of the differential pressure for opening the valve element. Therefore, pressure on an upstream side of the valve hole is controlled as if by absolute pressure. Further, when the pressure on the upstream side exceeds a predetermined pressure, the spring is bent to open the expansion valve, and hence the pressure is prevented from rising above the predetermined pressure.

摘要翻译： 提供一种膨胀装置，其控制高压侧压力，使得压力绝对压力不超过预定压力，同时响应于其入口处的压力和其出口处的压力之间的压差而操作。 膨胀装置包括用于膨胀制冷剂的孔口，设置在阀孔的下游侧并由形状记忆合金弹簧沿阀打开方向推动的阀元件，设置成延伸穿过阀孔并具有一个 其端部刚性地固定到阀元件，以及设置在轴的另一端的弹簧，用于接收在装置的入口处的制冷剂的压力与其出口处的制冷剂的压力之间的差压产生的负载 开放方向 形状记忆合金弹簧感测下游侧的制冷剂的温度，以进行用于打开阀元件的压差的设定值的温度校正。 因此，通过绝对压力控制阀孔的上游侧的压力。 此外，当上游侧的压力超过预定压力时，弹簧被弯曲以打开膨胀阀，因此防止压力升高到高于预定压力。

公开(公告)号：US20060218953A1

公开(公告)日：2006-10-05

申请号：US11389209

申请日：2006-03-27

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F25B49/00 ,  F16K31/02

CPC分类号： F04B27/1804 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1854

摘要： To enable a control valve for a variable displacement compressor, which operates by sensing a differential pressure between discharge pressure and suction pressure or between the discharge pressure and crankcase pressure, to enhance compression efficiency inside the compressor. In the control valve for a variable displacement compressor, according to the present invention, after a valve element on a high pressure side closes a valve hole, a valve element on a low pressure side opens a valve hole. Therefore, it is possible to eliminate a region in which both the valves on the high pressure side and the low pressure side are simultaneously open. This makes it possible to prevent refrigerant introduced into a crankcase from being immediately delivered, which makes it possible to obtain a sufficient compression efficient.

摘要翻译： 为了实现可变排量压缩机的控制阀，其通过感测排出压力和吸入压力之间或排出压力和曲轴箱压力之间的压差来操作，以提高压缩机内部的压缩效率。 在可变排量压缩机的控制阀中，根据本发明，在高压侧的阀元件关闭阀孔之后，低压侧的阀元件打开阀孔。 因此，能够消除高压侧和低压侧的两个阀同时打开的区域。 这使得可以防止被引入到曲轴箱中的制冷剂被立即输送，这使得可以获得足够的压缩效率。

公开(公告)号：US07036744B2

公开(公告)日：2006-05-02

申请号：US10658551

申请日：2003-09-10

申请人： Hisatoshi Hirota

发明人： Hisatoshi Hirota

IPC分类号： F25B41/04

CPC分类号： F25B41/062 ,  F25B5/02 ,  F25B2341/0683 ,  F25B2600/2519

摘要： The object of the present invention is to provide a solenoid valve-equipped expansion valve simplified in construction. A common valve element in which a valve element of an expansion valve and a valve element of a stop valve are integrally formed as a unitary member is disposed such that the common valve element can be axially movably guided by a shaft having the driving force of a power element transmitted thereto. A first core of a solenoid, holding the common valve element, is urged by a spring such that the common valve element is seated on a valve seat. When the solenoid is energized, the first core holding the common valve element is attracted by a second core rigidly fixed to the shaft such that the common valve element operates with the shaft in an interlocked fashion. As a result, when the solenoid is deenergized, the common valve element can function as a stop valve, whereas when the solenoid is energized, the common valve element can function as an expansion valve.

摘要翻译： 本发明的目的是提供一种简化结构的带电磁阀的膨胀阀。 一种普通的阀元件，其中膨胀阀的阀元件和截止阀的阀元件整体形成为整体构件，使得公共阀元件可以由具有驱动力的轴被轴向移动地引导 发送功率元件。 保持公共阀元件的螺线管的第一芯由弹簧推动，使得公共阀元件位于阀座上。 当螺线管通电时，保持公共阀元件的第一芯被被刚性地固定到轴的第二芯吸引，使得公共阀元件以互锁的方式与轴一起操作。 结果，当螺线管断电时，普通阀元件可用作截止阀，而当螺线管通电时，公共阀元件可用作膨胀阀。