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：US06397628B1

公开(公告)日：2002-06-04

申请号：US09543706

申请日：2000-04-05

申请人： Kazuhiko Watanabe ,  Masamichi Yano

发明人： Kazuhiko Watanabe ,  Masamichi Yano

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F16K1/422 ,  F16K25/04 ,  F25B2341/0683 ,  F25B2500/01

摘要： An expansion valve comprises an orifice 30 formed in a valve body 10 and a valve member 9 fixed to a movable member 18. Movement of a diaphragm 4 is transmitted to an actuating rod 17 via a member 16, and the actuating rod 17 actuated the movable member 18 to control the opening amount of the path between the valve member 9 and the orifice 30. An orifice member 100 affixed to the orifice 30 is made of a material harder than the valve body 10, and free from erosion or other damage by a refrigerant, which will otherwise occur at the valve opening portion.

公开(公告)号：US06296194B1

公开(公告)日：2001-10-02

申请号：US09480278

申请日：2000-01-10

申请人： Hisatoshi Hirota ,  Shinji Saeki ,  Isao Sendo ,  Masaichi Kawahata ,  Toshiyuki Shiota ,  Takashi Kobayashi

发明人： Hisatoshi Hirota ,  Shinji Saeki ,  Isao Sendo ,  Masaichi Kawahata ,  Toshiyuki Shiota ,  Takashi Kobayashi

IPC分类号： G05D2700

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

摘要： An expansion valve adapted to achieve a stable operation in case of variations of the pressure of a high-pressure refrigerant is actuated by a power element transmitting an opening force to a valve body via a rod located between the power element and the power body by applying couple forces to the rod and generating a retarding force for the rod while the rod is guided in the direction of its shaft line

摘要翻译： 适于在高压制冷剂的压力变化的情况下实现稳定操作的膨胀阀由通过施加在功率元件和动力体之间的杆向阀体传递打开力的动力元件致动 当杆沿其轴线的方向被引导时，将杆耦合到杆上并产生用于杆的延迟力

公开(公告)号：US06289916B1

公开(公告)日：2001-09-18

申请号：US09647074

申请日：2000-11-29

申请人： Christian Romanek

发明人： Christian Romanek

IPC分类号： G05D2700

CPC分类号： B60K15/03519 ,  F16K17/36 ,  Y10T137/0753 ,  Y10T137/0874 ,  Y10T137/86324

摘要： The invention concerns a ventilating device for a motor vehicle fuel tank, wherein a valve (12) is provided with a counter-weight (22) which, when the vehicle is not running in a substantially horizontal position, causes the valve (12) to be closed, and which, when the vehicle is running, causes the valve (12) to open. The invention is characterised in that the counter-weight (22) is supported on the upper concave surface (24) of a spring retainer (20) whereof one lower surface comprises means for closing the valve (12), and when the counter-weight (22) is spaced from its stable equilibrium position by vibrations, it makes the spring retainer (20) tilt so as to cause the valve (12) to be opened.

摘要翻译： 本发明涉及一种用于机动车辆燃料箱的通风装置，其中阀（12）设置有配重（22），当车辆不在大致水平的位置运行时，阀（12） 关闭，当车辆行驶时，使阀（12）打开。 本发明的特征在于，配重（22）支撑在弹簧保持器（20）的上凹表面（24）上，其中一个下表面包括用于关闭阀（12）的装置，并且当配重 （22）通过振动与其稳定的平衡位置隔开，使得弹簧保持器（20）倾斜以使阀（12）打开。

公开(公告)号：US06532753B2

公开(公告)日：2003-03-18

申请号：US10119209

申请日：2002-04-10

申请人： Kazuhiko Watanabe ,  Hiroshi Hayashi

发明人： Kazuhiko Watanabe ,  Hiroshi Hayashi

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2500/01 ,  F25B2500/12

摘要： A valve body 30 of an expansion valve 10′ is equipped with a first passage 32′ formed by a cutting process through which a high-pressure refrigerant travels, and on the lower portion of the valve body 30 is formed a space 35a defining a valve chamber 35′ from the bottom portion of the valve body 30 along the axial direction by a passage 33. The passage 33 defining the space 35a and the first passage 32′ are formed so as to interfere with each other, and at the interference area is formed a throttle portion 323. That is, the diameter of the first passage 32′ is formed so that the cross-sectional area thereof is gradually reduced toward the direction of the valve chamber 35, and a throttle portion 323 is formed to the area of the first passage 32′ interfering with the passage 33 defining the valve chamber 35′. The throttle portion 323 is formed to have a cross-sectional area corresponding to a diameter of approximately 3 mm. By such structure, the bubbles mixed inside the liquid-phase refrigerant is fined, and refrigerant passage noise is reduced.

公开(公告)号：US06450413B2

公开(公告)日：2002-09-17

申请号：US09875178

申请日：2001-06-07

申请人： Masamichi Yano

发明人： Masamichi Yano

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F25B2341/0683 ,  F25B2500/01

摘要： A power element portion 36′ mounted on the upper portion of an expansion valve body comprises an upper cover 36d and a lower cover 36h, and is divided into an upper pressure chamber 36b and a lower pressure chamber 36c by a diaphragm 36a. A heat sensing drive shaft 101 is formed of a large radius portion 105 and a heat conducting shaft 103 integrally formed thereto. The stopper portion 104 contacting the lower surface of the diaphragm 36a is a member which is formed separately from the heat sensing drive shaft 101, and supported within the lower cover 36h. When the expansion valve is taken apart, the heat sensing drive shaft 101 is pulled out from the inside of the mounting seat 362 of the power element portion 36′, and the refrigerant remaining inside the upper pressure chamber 36b is taken out and collected from the side of the diaphragm.

摘要翻译： 安装在膨胀阀体的上部的动力元件部分36'包括上盖36d和下盖36h，并通过隔膜36a分成上压力室36b和下压力室36c。 热传感驱动轴101由与其一体形成的大径部105和导热轴103形成。 与隔膜36a的下表面接触的止动部104是与感热驱动轴101分开形成并支承在下罩36h内的部件。 当膨胀阀分离时，热传感驱动轴101从动力元件部分36'的安装座362的内部被拉出，并且从上压力室36b内残留的制冷剂从 隔膜的一侧

公开(公告)号：US06354509B1

公开(公告)日：2002-03-12

申请号：US09706780

申请日：2000-11-07

申请人： Eiji Fukuda ,  Kazuhiko Watanabe

发明人： Eiji Fukuda ,  Kazuhiko Watanabe

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F25B2341/0683

摘要： A thermal expansion valve 100 has a valve chamber in a valve body 110, and controls the flow rate of refrigerant from a condenser and a receiver, and the refrigerant travels to an evaporator through a passage 132. Refrigerant returning from the evaporator transmits the temperature of refrigerant to a heat sensing shaft connecting to a power element portion 36 while traveling through a passage 34. A cover 200 has a head portion 220 and a tapered portion 210, and is mounted to the top portion of the valve body 110. Tapered outer surfaces 212 of the tapered portion of the cover 200 and tapered surfaces 114 of the valve body 110 form approximately identical surfaces. A concave portion 221 of the head portion 220 covers the power element portion 36, and its peak portion forms a curved surface 222.

摘要翻译： 热膨胀阀100在阀体110中具有阀室，并且控制来自冷凝器和接收器的制冷剂的流量，并且制冷剂通过通道132行进到蒸发器。从蒸发器返回的制冷剂传递温度 制冷剂在通过通道34时连接到功率元件部分36的热传感轴。盖200具有头部220和锥形部分210，并且安装到阀体110的顶部。锥形外表面 盖子200的锥形部分212和阀体110的锥形表面114形成大致相同的表面。 头部220的凹部221覆盖功率元件部36，其峰部形成曲面222。

公开(公告)号：US06634567B2

公开(公告)日：2003-10-21

申请号：US10173078

申请日：2002-06-18

申请人： Teruyuki Hotta ,  Shigeki Ito ,  Yasushi Yamanaka ,  Ryo Matsuda ,  Kazuhiko Watanabe ,  Keiji Sasaki

发明人： Teruyuki Hotta ,  Shigeki Ito ,  Yasushi Yamanaka ,  Ryo Matsuda ,  Kazuhiko Watanabe ,  Keiji Sasaki

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F25B2341/063 ,  F25B2600/2513

摘要： An expansion valve unit having a pressure detecting function includes a supercooling control expansion valve disposed in a flow path of a refrigerant sent into an evaporator of a refrigeration system constituting a refrigerating cycle to control the flow rate of the refrigerant. A pressure detector is provided at one end of the supercooling control expansion valve to detect the pressure of the refrigerant sent thereto through a passage in the expansion valve. The supercooling control expansion valve and the pressure detector are integrated with each other by a joining means.

摘要翻译： 具有压力检测功能的膨胀阀单元包括设置在构成制冷循环的制冷系统的蒸发器中的制冷剂的流路中的过冷却控制膨胀阀，以控制制冷剂的流量。 在过冷却控制膨胀阀的一端设有压力检测器，以检测通过膨胀阀中的通道送到其上的制冷剂的压力。 过冷控制膨胀阀和压力检测器通过接合装置相互集成。

公开(公告)号：US06565009B2

公开(公告)日：2003-05-20

申请号：US10173654

申请日：2002-06-19

申请人： Masamichi Yano ,  Masakatsu Minowa

发明人： Masamichi Yano ,  Masakatsu Minowa

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F25B2341/0682 ,  F25B2341/0683

摘要： A system and method for preventing hunting of a thermal expansion valve used to control the flow of refrigerant supplied to an evaporator in a refrigeration cycle. A refrigeration apparatus is provided with a compressor, a condenser, a receiver, an expansion valve, and an evaporator connected in this order, spherically activated carbon made of phenol having pore sizes fit for molecular sizes of a working fluid is prepared; and the spherically activated carbon is provided into the expansion valve; whereby hunting, or the repeated opening and closing of the expansion valve, is prevented.

摘要翻译： 一种用于防止在制冷循环中控制供应到蒸发器的制冷剂流动的热膨胀阀的捕获的系统和方法。 制冷装置具有依次连接的压缩机，冷凝器，接收器，膨胀阀和蒸发器，制备具有适合工作流体分子尺寸的孔径的由酚制成的球形活性碳; 并且将球形活性炭设置在膨胀阀中; 从而防止了膨胀阀的振动或重复打开和关闭。

公开(公告)号：US06474560B2

公开(公告)日：2002-11-05

申请号：US09901007

申请日：2001-07-10

申请人： Masakatsu Minowa ,  Kazuhiko Watanabe

发明人： Masakatsu Minowa ,  Kazuhiko Watanabe

IPC分类号： G05D2700

CPC分类号： F25B41/062 ,  F16K31/002 ,  F25B2341/0682 ,  F25B2341/0683

摘要： Reference 100′ refers to a heat-sensing driven member constituting a thermal expansion valve formed by a stainless steel material and the like and having in the inside thereof an adsorbent 40, with a collar 100′a formed to the outside of the opening 100′b of the heat-sensing driven material 100′. A protrusion 100′c and a groove 100′d is formed to said collar 100′a in the downward direction of the drawing. Said protrusion 100′c and said groove 100′d are formed to the whole perimeter of said collar 100′a. Moreover, a diaphragm 82a formed for example of stainless steel material is inserted to said heat-sensing driven member 100′ through an opening 82b formed to the center area thereof until it contacts said protrusion 100′c, and said diaphragm 82a is fixed to said heat-sensing driven member 100′. As a result, the diaphragm 82a is welded by said protrusion 100′c between said collar 100′a and said support member 82′a. The end of the diaphragm 82a is sandwiched between housings 81 and 91 and fixed to position by welding.