公开(公告)号：US20030146402A1

公开(公告)日：2003-08-07

申请号：US10308211

申请日：2002-12-02

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Tokumi Tsugawa ,  Katsumi Koyama ,  Toshiyuki Shiota ,  Yuusuke Inoue

IPC分类号： F16K031/02

CPC分类号： F25B41/062 ,  F16K1/123 ,  F16K3/265 ,  F16K31/0651 ,  F16K31/0655 ,  F16K31/0668 ,  F25B2341/061 ,  F25B2341/065 ,  Y02B30/72

摘要： To provide a small-sized and low-cost proportional solenoid valve which is capable of controlling a bidirectional fluid flow. A core is fixed in a pipe, and a hollow shaft having an extreme end thereof closed by a valve seat and a portion adjacent thereto formed with valve holes is fixed in the core. Within the pipe, there are arranged a hollow cylindrical valve element axially movable using the shaft as a guide and urged in a direction away from the core by a spring, for opening and closing the valve holes, and a plunger, while outside the pipe, there is arranged a solenoid coil. The proportional solenoid valve has a body formed by the pipe, and the component parts for opening and closing the valve are arranged within the pipe, so that it is possible to reduce the size of the proportional solenoid valve, the number of component parts, and machining costs and material costs, which contributes to reduction of costs of the valve. Further, since the operation of the hollow cylindrical valve element for opening and closing the valve holes is not adversely affected by the direction of the fluid flow, it is possible to control a bidirectional flow of fluid.

摘要翻译： 提供能够控制双向流体流动的小型和低成本比例电磁阀。 芯部固定在管中，并且具有由阀座封闭的前端的空心轴和与阀孔相邻的部分固定在芯中。 在管内设有一个中空的圆柱形阀元件，该中空圆柱形阀元件可以使用该轴作为引导件而轴向移动，并且通过弹簧沿远离该芯的方向被推动，用于打开和关闭该阀孔以及一个柱塞， 设置有螺线管线圈。 比例电磁阀具有由管形成的本体，并且用于打开和关闭阀的部件布置在管内，使得可以减小比例电磁阀的尺寸，部件的数量和 加工成本和材料成本，这有助于降低阀门的成本。 此外，由于用于打开和关闭阀孔的中空圆柱形阀元件的操作不会受到流体流动的方向的不利影响，因此可以控制流体的双向流动。

公开(公告)号：US20030079493A1

公开(公告)日：2003-05-01

申请号：US10279503

申请日：2002-10-24

申请人： TGK Co. Ltd.

发明人： Hisatoshi Hirota ,  Takeshi Kaneko

IPC分类号： F25B043/00 ,  G05D027/00

CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2500/05

摘要： To provide a low-cost block-type expansion valve containing a strainer. A block-type expansion valve is configured such that a hollow cylindrical strainer is arranged in a space for introducing high-pressure liquid refrigerant, in a manner surrounding a valve element, and the refrigerant introduced into a refrigerant pipe-connecting hole is permitted to flow into a space on the upstream side of the valve element 17 via the strainer. Therefore, since the shape of a body is not substantially changed, it is possible to provide the expansion valve at low costs by suppressing an increase in the manufacturing costs to the cost of the strainer.

摘要翻译： 提供一种含有过滤器的低成本块式膨胀阀。 块状膨胀阀构成为以围绕阀体的方式在中空圆筒形过滤器配置在用于引入高压液体制冷剂的空间中，并且允许引入制冷剂管连接孔的制冷剂流动 通过过滤器进入阀元件17的上游侧的空间。 因此，由于本体的形状基本上不变化，可以通过抑制制造成本增加到过滤器的成本来以低成本提供膨胀阀。

公开(公告)号：US20020005436A1

公开(公告)日：2002-01-17

申请号：US09875801

申请日：2001-06-06

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Yuusuke Inoue

IPC分类号： G05D027/00

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住。 阀座与主体一体地形成在制冷剂通路中，制冷剂通过过滤器流过制冷剂通道，阀元件以与阀座相对的方式布置，并且由制冷剂通道的下游侧的弹簧推压， 安装在阀座上，由此构成差压调节阀。 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：US20040086391A1

公开(公告)日：2004-05-06

申请号：US10686481

申请日：2003-10-16

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota ,  Morimitsu Kajiwara

IPC分类号： F04B001/26

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

摘要： The object of the present invention is to provide a control valve for a variable displacement compressor, which is capable of controlling the variable displacement compressor to the minimum capacity without using an electromagnetic clutch, and can be constructed without accommodating a solenoid in a pressure chamber. A plunger of a solenoid is formed by a first plunger and a second plunger, and a diaphragm is disposed between them, for sensing suction pressure Ps, such that the first plunger controls a valve element via a shaft, with component elements of the solenoid except for the first plunger being disposed on a side of the diaphragm where the atmospheric pressure is received. Further, when the solenoid is not energized, the high suction pressure Ps urges the second plunger toward the core via the diaphragm, and a spring causes the first plunger to urge the valve element to the fully open position, which enables the variable displacement compressor to be controlled to the minimum capacity.

摘要翻译： 本发明的目的是提供一种用于可变排量压缩机的控制阀，其能够在不使用电磁离合器的情况下将可变排量压缩机控制到最小容量，并且可以在不在电压室中容纳螺线管的情况下构造。 螺线管的柱塞由第一柱塞和第二柱塞形成，并且隔膜设置在它们之间，用于感测吸入压力Ps，使得第一柱塞经由轴控制阀元件，螺线管的构成元件除了 第一柱塞设置在接收大气压的隔膜的一侧。 此外，当螺线管未通电时，高吸入压力Ps通过隔膜向第二柱塞推动第二柱塞，并且弹簧使第一柱塞将阀元件推动到完全打开位置，这使得可变排量压缩机 被控制到最小容量。

公开(公告)号：US20040046140A1

公开(公告)日：2004-03-11

申请号：US10653233

申请日：2003-09-03

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota

IPC分类号： F16K031/02

CPC分类号： F25B41/062 ,  F25B2341/065 ,  F25B2600/2505 ,  G05D16/2013 ,  Y02B30/72

摘要： The object of the present invention is to provide a proportional valve which does not open or close by itself and is free of internal leakage. A valve element is formed integrally with a piston having a cross-sectional area equal to that of a valve hole constituting a valve seat, and a diaphragm having an outer peripheral portion secured to a body by a holder is disposed in contact with a pressure-receiving end face of the piston. The diaphragm is mounted in a displaced state such that when the valve element is seated on the valve seat, the pressure receiving area of the diaphragm is at a maximum and is equal to that of the valve element. Change in the pressure receiving area of the valve element corresponding to the lift amount thereof is canceled out by change in the pressure receiving area of the diaphragm corresponding to the amount of displacement thereof, thus preventing the valve from opening or closing by itself due to the difference between the pressure receiving areas. Also, a sliding portion of the piston is shut off by the diaphragm, whereby internal leakage can be completely prevented.

摘要翻译： 本发明的目的是提供一种比例阀，其不会自身打开或关闭并且没有内部泄漏。 阀元件与具有与构成阀座的阀孔的截面积相等的截面积的活塞一体地形成，并且具有通过保持件固定到主体的外周部分的隔膜设置成与压力传感器接触， 接收活塞的端面。 隔膜安装在移动状态，使得当阀元件就座在阀座上时，隔膜的受压面积最大并且等于阀元件的受压面积。 与其升程量对应的阀元件的压力接收面积的变化通过与其位移量对应的隔膜的受压面积的变化而被抵消，从而防止阀门因其自身的打开或闭合 受压区域之间的差异。 此外，活塞的滑动部分被隔膜切断，从而可以完全防止内部泄漏。

公开(公告)号：US20030223884A1

公开(公告)日：2003-12-04

申请号：US10452243

申请日：2003-06-03

申请人： TGK CO., LTD.,

发明人： Hisatoshi Hirota

IPC分类号： F04B001/26

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

摘要： The object of the present invention is to provide a capacity control valve for a variable displacement compressor, which is not adversely affected by pressure from a pressure-regulating chamber in actual operation. Assuming that the cross-sectional area of a valve hole of a high pressure-side valve seat for introducing discharge pressure Pd of a variable displacement compressor into a pressure-regulating chamber is represented by A, the cross-sectional area of a valve hole of a low pressure-side valve seat for introducing pressure Pc1 (nullPc2) of the pressure-regulating chamber into a suction chamber by B, and the average cross-sectional area of a refrigerant passage assumed when a low-pressure valve element is open during most of control time of actual operation by b, the areas A and B are set such that A

摘要翻译： 本发明的目的是提供一种用于可变排量压缩机的容量控制阀，其在实际操作中不受来自压力调节室的压力的不利影响。 假设用于将可变排量压缩机的排出压力Pd引入压力调节室的高压侧阀座的阀孔的截面积由A表示，阀孔的截面面积 用于将压力调节室的压力Pc1（= Pc2）引入吸入室B的低压侧阀座和当低压阀元件打开时假定的制冷剂通道的平均截面积 大部分通过b的实际操作的控制时间，区域A和B被设置为使得A

公开(公告)号：US20040091369A1

公开(公告)日：2004-05-13

申请号：US10700462

申请日：2003-11-05

申请人： TGK CO., LTD

发明人： Hisatoshi Hirota ,  Tomokazu Nakazawa

IPC分类号： F04B001/26

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1854 ,  F04B2027/1895

摘要： An object of the invention is to provide a variable displacement compressor which is capable of using a solenoid control valve which does not require a large solenoid force. The compressor is configured such that an electromagnetic proportional flow rate control valve is arranged in a refrigerant passage leading from a discharge chamber to a condenser, that a differential pressure regulating valve is arranged in a refrigerant passage leading from the discharge chamber to a crank chamber, and that a fixed orifice is arranged in a refrigerant passage leading from the crank chamber to a suction chamber, whereby the differential pressure regulating valve senses a differential pressure Pd, Pdnull generated across the electromagnetic proportional flow rate control valve, for control of pressure introduced into the crank chamber. Due to this configuration, the differential pressure regulating valve controls pressure Pc in the crank chamber such that the difference of pressure of refrigerant before and after passing through a restriction having openness set by the electromagnetic proportional flow rate control valve becomes constant, which makes the flow rate Qd of discharged refrigerant constant irrespective of changes in the engine rotational speed, etc. Since the differential pressure can be controlled by a small solenoid force, the variable displacement compressor can be made compact in size.

摘要翻译： 本发明的目的是提供一种能够使用不需要大的螺线管力的电磁控制阀的可变排量压缩机。 压缩机构成为使电磁比例流量控制阀配置在从排出室向冷凝器通过的制冷剂通路中，差压调节阀配置在从排出室向曲轴室通过的制冷剂通路中， 并且在从曲柄室引导到吸入室的制冷剂通路中设置固定孔，由此差压调节阀感测跨越电磁比例流量控制阀产生的压差Pd，Pd'，用于控制所引入的压力 进入曲柄室。 由于该构造，差压调节阀控制曲柄室内的压力Pc，使得在通过电磁比例流量控制阀所设定的开度的限制之前和之后的制冷剂的压力差变得恒定，这使得流动 排出的制冷剂的速率Qd与发动机转速等的变化无关。由于压差可以通过小的电磁力来控制，所以可变排量压缩机的尺寸可以小型化。

公开(公告)号：US20030213516A1

公开(公告)日：2003-11-20

申请号：US10428107

申请日：2003-05-02

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota ,  Tokumi Tsugawa

IPC分类号： G05D011/00

CPC分类号： F25B41/04 ,  B60H1/00978 ,  B60H1/3225 ,  F25B41/003 ,  F28F2265/16 ,  Y10T137/2584 ,  Y10T137/87362

摘要： To provide an outflow prevention device which is capable of preventing refrigerant from flowing out into a vehicle compartment even when an evaporator has ruptured. The outflow prevention device comprises a shut valve arranged in a passage via which refrigerant introduced into a shut valve inlet from an expansion device is allowed to flow to the evaporator, and a check valve arranged in a passage via which refrigerant returned from the evaporator is allowed to flow to an accumulator. A chamber behind a piston fixed to a plug holding a valve sheet and a chamber on a downstream side of the check valve are communicated with each other via a bypass passage, so that differential pressure generated across the check valve by flow of refrigerant through the same can be applied to the shut valve to open and close the same. The valve sheet and the piston are formed to have the same diameters so as to prevent the shut valve from being influenced by introduced pressure, thereby enabling the shut valve to be operated only by the differential pressure generated across the check valve.

摘要翻译： 为了提供即使在蒸发器破裂时也能够防止制冷剂流入车厢的流出防止装置。 流出防止装置包括：关闭阀，其配置在允许从膨胀装置引入到关闭阀入口的制冷剂流入蒸发器的通路中，以及设置在允许从蒸发器返回的制冷剂的通路中的止回阀 流入累加器。 固定在保持阀片的塞子上的活塞和在止回阀的下游侧的腔室之间的腔室经由旁通通路彼此连通，从而通过制冷剂流过该止回阀而产生的差压 可以将其应用于关闭阀门打开和关闭。 阀片和活塞形成为具有相同的直径，以防止截止阀受到引入的压力的影响，从而使截止阀仅通过止回阀上产生的压差来操作。

公开(公告)号：US20030210988A1

公开(公告)日：2003-11-13

申请号：US10429025

申请日：2003-05-05

申请人： TGK CO., LTD.

发明人： Hisatoshi Hirota

IPC分类号： F04B001/26

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

摘要： The object of the present invention is to provide a capacity control valve for a variable displacement compressor, which is not adversely affected by pressure from a pressure-regulating chamber. A three-way valve structure is formed in which a high-pressure valve element and a low-pressure valve element are integrally formed at both ends, and valve seats with valve holes having the same diameter are arranged in a manner opposed to the respective valve elements. A discharges pressure is supplied from the upstream side of the valve seat, and a suction pressure is supplied from the downstream side of the valve seat. Pressures from a pressure-regulating chamber are received at the downstream side of the high-pressure valve element and the upstream side of the low-pressure valve element. Further, a solenoid is included for applying a load corresponding to a differential pressure at which the variable displacement compressor starts capacity control, to the high-pressure valve element and the low-pressure valve element, by a shaft via a valve hole of the valve seat. The valve holes are formed to have the same diameter, whereby it is possible to cancel out the pressures from the pressure-regulating chamber and perform capacity control only in response to the differential pressure between the discharge pressure a and the suction pressure.

摘要翻译： 本发明的目的是提供一种用于可变排量压缩机的容量控制阀，其不受来自压力调节室的压力的不利影响。 形成三通阀结构，其中高压阀元件和低压阀元件在两端一体地形成，并且具有相同直径的阀孔的阀座以与各个阀相对的方式布置 元素。 从阀座的上游侧供给排出压力，从阀座的下游侧供给吸入压力。 来自压力调节室的压力被接收在高压阀元件的下游侧和低压阀元件的上游侧。 此外，包括螺线管，用于通过阀经由阀的阀孔将可变排量压缩机开始容量控制的压差与负荷相对应地施加到高压阀元件和低压阀元件 座位。 阀孔形成为具有相同的直径，由此可以抵消来自压力调节室的压力，并且仅根据排出压力a和吸入压力之间的压差来执行容量控制。

公开(公告)号：US20030066303A1

公开(公告)日：2003-04-10

申请号：US10263915

申请日：2002-10-03

申请人： TGK Co., Ltd.

发明人： Hisatoshi Hirota ,  Takeshi Kaneko

IPC分类号： F25B041/04 ,  F25B041/06

CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2700/191

摘要： The object of the present Invention is to provide an expansion valve including a pressure sensor which enables reduction of parts cost. A pressure sensor is screwed into an opening of a body block, which communicates with a space accommodating a valve element and a compression coil spring for urging the valve element toward a valve seat. A set value for an expansion valve is adjusted by changing the amount of screwing of the pressure sensor to thereby change the load of the compression coil spring. An adjusting screw for adjusting the set value for the expansion valve can be dispensed with, which makes it possible to reduce the manufacturing costs of the expansion valve.

摘要翻译： 本发明的目的是提供一种包括能够降低部件成本的压力传感器的膨胀阀。 压力传感器被拧入体块的开口中，该体块与容纳阀元件的空间和用于将阀元件推向阀座的压缩螺旋弹簧连通。 通过改变压力传感器的拧紧量来调节膨胀阀的设定值，从而改变压缩螺旋弹簧的负荷。 可以省略用于调节膨胀阀的设定值的调节螺钉，这样可以降低膨胀阀的制造成本。