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公开(公告)号：JP2005249273A
公开(公告)日：2005-09-15
申请号：JP2004059355
申请日：2004-03-03
Applicant: Denso Corp , Fuji Koki Corp , 株式会社デンソー , 株式会社不二工機
Inventor： KOBAYASHI KAZUTO , WATANABE KAZUHIKO , ITO SHIGEKI
IPC: F25B41/06
CPC classification number: F25B2341/0683
Abstract: PROBLEM TO BE SOLVED: To provide a thermal expansion valve capable of stably holding the value of an opening area by securely adjusting, to any value, the opening area for adiabatically expanding a gas-liquid two-phase refrigerant from the liquid-phase refrigerant of the thermal expansion valve in which the pressing force of a pressing member pressed in a valve opening direction is controlled by controlling the projected amount of the pressing member. SOLUTION: This thermal expansion valve comprises an operation bar 60 supported on a valve body 10, a valve element 30 opening and closing an orifice part 40 by the movement of the operation bar 60, and a stopper member 90 moved by the vertical movement of a diaphragm 80. The relative position of the operation bar 60 relative to the diaphragm 80 is changeable. The valve element 30 is pressed to the orifice part 40 side by a spring 34 in a valve chamber 22 formed in the valve body 10. The valve element 30 is pressed to the spring 34 side by the operation bar 60. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 解决问题的方案为了提供一种通过可靠地调节液体两相制冷剂的绝热膨胀的开口面积，能够稳定地保持开口面积的值的热膨胀阀， 通过控制按压部件的投影量来控制按压阀打开方向的按压部件的按压力的热膨胀阀的三相制冷剂。 解决方案：该热膨胀阀包括支撑在阀体10上的操作杆60，通过操作杆60的移动来打开和关闭孔口部分40的阀元件30以及由垂直方向移动的止动件90 操作杆60相对于隔膜80的相对位置是可变的。 阀元件30通过形成在阀体10中的阀室22中的弹簧34压向孔部40侧。阀元件30被操作杆60按压到弹簧34侧。版权所有： （C）2005，JPO＆NCIPI
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公开(公告)号：JP2003074741A
公开(公告)日：2003-03-12
申请号：JP2002109718
申请日：2002-04-11
Applicant: Denso Corp , Fuji Koki Corp , 株式会社デンソー , 株式会社不二工機
Inventor： HOTTA TERUYUKI , ITO SHIGEKI , YAMANAKA YASUSHI , MATSUDA AKIRA , WATANABE KAZUHIKO , SASAKI KEIJI
CPC classification number: F25B41/062 , F25B2341/063 , F25B2600/2513
Abstract: PROBLEM TO BE SOLVED: To build a pressure detector in an overcooling degree control type expansion valve to integrate both of them.
SOLUTION: The overcooling degree control type expansion valve 5 for regulating the flow of a refrigerant is provided at an intermediate part of a passage of a refrigerant fed into an evaporator 4 of a refrigerating device forming a refrigerating cycle. A pressure detector 6 for detecting the pressure of the refrigerant fed through a passage in the overcooling degree control type expansion valve 5 is provided at one end of the overcooling degree control type expansion valve 5. Both are integrated by a connecting means 8a to constitute the expansion valve with a pressure detecting function.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：在过冷度控制型膨胀阀中建立压力检测器以整合它们。 解决方案：用于调节制冷剂流量的过冷度控制型膨胀阀5设置在供给到形成制冷循环的制冷装置的蒸发器4的制冷剂通路的中间部分。 用于检测通过过冷度控制型膨胀阀5的通道供给的制冷剂的压力的压力检测器6设置在过冷度控制型膨胀阀5的一端。两者都通过连接装置8a一体化， 具有压力检测功能的膨胀阀。
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公开(公告)号：JP2006214722A
公开(公告)日：2006-08-17
申请号：JP2006089822
申请日：2006-03-29
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： HAYASHI HIROSHI , WATANABE KAZUHIKO
CPC classification number: F25B2400/0411
Abstract: PROBLEM TO BE SOLVED: To improve a structure of a by-pass passage in a solenoid valve integral-type expansion valve.
SOLUTION: The solenoid valve integral-type expansion valve 1 has a valve chamber 12 in a valve body 10. A valve element 30 for opening and closing a throttle passage 14 communicating with an outlet passage of a refrigerant is operated by a power element 50 via a valve rod 80. A by-pass passage disposed in parallel with the throttle flow channel 14 is opened and closed by a solenoid valve 100. A throttle member 200 is inserted into a micro communication passage 22 communicating with the valve chamber 12, and adjusts the flow rate of the refrigerant flowing in the micro communication passage 22.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：为了改善电磁阀一体式膨胀阀中的旁路通道的结构。 电磁阀一体型膨胀阀1在阀体10内具有阀室12.用于打开和关闭与制冷剂的出口通道连通的节流通道14的阀元件30由动力 元件50通过阀杆80.与节气门通道14平行设置的旁路通道由电磁阀100打开和关闭。节流构件200插入到与阀室12连通的微连通通道22中 并调节在微型连通通道22中流动的制冷剂的流量。（C）版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006003056A
公开(公告)日：2006-01-05
申请号：JP2004207257
申请日：2004-07-14
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： KOBAYASHI KAZUTO , WATANABE KAZUHIKO , SUDO MAKOTO
IPC: F25B41/06
CPC classification number: F25B2341/0683 , F25B2500/13
Abstract: PROBLEM TO BE SOLVED: To provide an expansion valve for reducing the number of part items, simplifying a structure, reducing assembly man-hours, and stabilizing valve motion to pressure fluctuation of a high pressure refrigerant. SOLUTION: The expansion valve 1 comprises a valve main body 10, a first passage 20 formed in the valve main body, a bottomed valve chest 22 formed in the first passage, a second passage 24 formed in the valve main body in parallel to the first passage for passing a refrigerant, a third passage 26, and a guide member 100 arranged on an opening part of the valve main body. The guide member is formed by integrally forming a guide part 102 for slidably guiding an operation rod 60 for operating to open and close the valve element 30, and an orifice part 40 having a throttle part 42 communicating the valve chest and the second passage. The guide member includes a vibration control member 50 for applying constraint force to the operation rod attached thereon, and is caulked and fixed on the valve main body. A positioning part which is in surface-contact with the valve main body is formed on the orifice part. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种用于减少零件的数量的膨胀阀，简化结构，减少组装工时，并且将阀运动稳定到高压制冷剂的压力波动。 解决方案：膨胀阀1包括阀主体10，形成在阀主体中的第一通道20，形成在第一通道中的有底阀座22，并联形成在阀主体中的第二通道24 到通过制冷剂的第一通道，布置在阀主体的开口部分上的第三通道26和引导构件100。 引导构件通过一体地形成用于可滑动地引导用于操作以打开和关闭阀元件30的操作杆60的引导部102和具有连通阀门和第二通道的节流部42的孔部40而形成。 引导构件包括用于对安装在其上的操作杆施加约束力的振动控制构件50，并且被铆接并固定在阀主体上。 在孔部上形成有与阀主体表面接触的定位部。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005226941A
公开(公告)日：2005-08-25
申请号：JP2004036867
申请日：2004-02-13
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： KOBAYASHI KAZUTO , SUDO MAKOTO , WATANABE KAZUHIKO
CPC classification number: F25B2341/0683
Abstract: PROBLEM TO BE SOLVED: To simplify a structure of an expansion valve for a refrigerant, loaded on an air conditioner, and to reduce the number of assembling components.
SOLUTION: This expansion valve 1 has a valve main body 10 having the rectangular column shape, the valve main body 10 is provided with a first passage 20 for introducing the refrigerant, a valve chest 22 formed near a bottom part of the passage, a second passage 24 for the refrigerant toward an evaporator, and a third passage 26 for the refrigerant returned from the evaporator. A valve element 30 mounted in the valve chest is operated by a power element 70 through an operation bar 60. An assembly of an orifice member 40 and an assembly of a guide member 100 are press-fit to an opening part formed on the valve main body 10 to assemble the expansion valve. A small hole 18 of the valve chest 22 is sealed by a stopper member 150.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：为了简化装载在空调器上的制冷剂用膨胀阀的结构，并且减少组装部件的数量。 解决方案：该膨胀阀1具有矩形柱状的阀主体10，阀主体10设置有用于引入制冷剂的第一通道20，形成在通道的底部附近的阀体22 ，用于制冷剂朝向蒸发器的第二通道24和用于从蒸发器返回的制冷剂的第三通道26。 安装在阀座中的阀元件30通过操作杆60由动力元件70操作。孔构件40和引导构件100的组件的组件压配合到形成在阀主体上的开口部 主体10组装膨胀阀。 阀体22的小孔18由止动件150密封。版权所有（C）2005，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2004340560A
公开(公告)日：2004-12-02
申请号：JP2003305871
申请日：2003-08-29
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： EZAKI HIROYUKI , WATANABE KAZUHIKO
CPC classification number: F16K31/423 , F16K11/161 , F16K31/0624 , F16K31/408 , F25B41/04 , F25B41/06 , F25B47/022 , F25B2400/0403 , F25B2600/2505 , F25B2600/2519 , Y10T137/87829 , Y10T137/87861
Abstract: PROBLEM TO BE SOLVED: To miniaturize the shape of a valve by simplifying the constitution, and to suppress cost by reducing manufacture man-hours. SOLUTION: This composite valve is obtained by providing a solenoid valve part 10 and a differential pressure valve part 40 in a valve body 20 integrally. An inflow port 21, a first outflow port 22, a second outflow port 23, an upper valve chest 24 which is communicated with the inflow port 21 and is provided with a main valve seat 25, a lower valve chest 27 which is communicated with the first outflow port 22, a refrigerant introducing chamber 41 which is communicated with the upper valve chamber 24 and is provided with a differential pressure valve seat 43, and a back pressure introducing chamber 42 which is communicated with the lower valve chamber 27 are formed in the valve body 20. A main valve element 30 opened and closed by the solenoid valve part 10 is provided between the upper valve chamber 24 and the lower valve chamber 27. A differential pressure valve element 47 opened and closed by the differential pressure of the refrigerant introducing chamber 41 and the back pressure introducing chamber 42 is provided between the refrigerant introducing chamber 41 and the back pressure introducing chamber 42. The differential pressure valve part 40 comprising the refrigerant introducing chamber 41, the back pressure introducing chamber 42 and the differential pressure valve element 47 is arranged so as not to be located on the external surface of the valve body 20. The first outflow port 22, the back pressure introducing chamber 42, the differential pressure valve element 47, the refrigerant introducing chamber 41 and the second outflow port 23 are arranged nearly on a straight line at this order. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2004198064A
公开(公告)日：2004-07-15
申请号：JP2002369502
申请日：2002-12-20
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： KATAYAMA TOSHIHARU , WATANABE KAZUHIKO
CPC classification number: F25B2341/0683
Abstract: PROBLEM TO BE SOLVED: To provide an expansion valve to be consistently operated against pressure fluctuation of high-pressure refrigerant. SOLUTION: The expansion valve 5 has a high-pressure side passage 5b where liquid phase refrigerant flows in a valve body 5a, and a low-pressure side passage 5c where gas-liquid phase refrigerant subjected to adiabatic expansion flows out. The high-pressure side passage 5b is communicated with the low-pressure side passage 5c via an orifice 7. A valve element 8 to adjust the amount of the refrigerant passing through the orifice 7 is provided in a valve chest 8d. The valve element 8 is attached/detached to/from a valve seat 7a formed in the orifice 7 to adjust the refrigerant. An inclined plate 10 is provided on a spring seat surface 8f' forming a bottom portion of a recess 8f of an adjustment screw 8b, a locking part 8c' of a compression coil spring 8a is provided on a supporting member 8c, and the compression coil spring 8a is supported between the spring seat surface 8f' and the locking part 8c'. When the valve is opened, the compression coil spring 8a is inclined by the inclined plate 10 provided on the spring seat surface 8f' with an inclined surface 11 thereof as an inclining means, an eccentric state occurs, in which the axis of the valve element 8 is deviated from the axis of a working rod 9b. The inclined plate 10 works as a deviation means and pressed against one side of the valve seat 7a when the valve element 8 is operated, and a friction occurs between the valve element and the valve seat 7a to suppress the vibration of the valve element 8. COPYRIGHT: (C)2004,JPO&NCIPI
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公开(公告)号：JP2004150656A
公开(公告)日：2004-05-27
申请号：JP2002314085
申请日：2002-10-29
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： MATSUDA AKIRA , SHIMURA TOMONORI , WATANABE KAZUHIKO
CPC classification number: F25B41/062 , F16K31/42 , F25B41/04 , F25B2341/0671 , F25B2341/0683 , F25B2500/01 , Y10T137/87917
Abstract: PROBLEM TO BE SOLVED: To provide an expansion valve integrated with a solenoid valve in which high pressure side cooling medium is not introduced to a diaphragm of an actuation device (power element) for a valve element when the valve is closed. SOLUTION: This expansion valve 1 integrated with a solenoid valve has a valve chamber 20 to which high pressure cooling medium is introduced in a valve main body 10. The valve element 30 forms a restricting passage to a valve seat 40 to control passage quantity of cooling medium. The valve element 30 is operated by move of a stopper member 80 of the power element 60 through an actuation rod 100. The high pressure cooling medium goes through a pressure equalizing passage 12, a communication chamber 22 in the solenoid valve 200, and a pressure equalizing passage 14 to act on a surface 80a of the stopper member 80 on the opposite side to the diaphragm 70. The stopper member 80 is sealed to a guide member 90, and the high pressure cooling medium does not directly act on the diaphragm. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2004028491A
公开(公告)日：2004-01-29
申请号：JP2002187937
申请日：2002-06-27
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： KOBAYASHI KAZUTO , YANO KIMIMICHI , WATANABE KAZUHIKO
CPC classification number: F25B2341/0683
Abstract: PROBLEM TO BE SOLVED: To improve a structure of an expansion valve for refrigerant equipped in a refrigeration cycle of an air conditioner.
SOLUTION: The expansion valve 1 comprises a piping member 10 having a passage for connecting a pipe of the refrigerant, and a cassette unit 100, and both are separately manufactured. The cassette unit 100 is formed by integrally welding a flange part 111 and a tube member 110 which are separately formed, and a guide member 170, an orifice member 180, and a plate member 166 are fixed inside. A diaphragm 130 is displaced by a gas pressure of a gas charge chamber 122 formed by a cover body 120 and the diaphragm 130, and is transmitted to a shaft member 150 through a stopper member 140 having a tube shaped part 142 for housing absorbent in a center part. The shaft member 150 is guided by the guide member 170, and operates a valve element 160 in a valve chamber 161. The cassette unit 100 is inserted in the piping member 10 and is fixed by a ring 50. Seal members 62, 64, 66 are attached on necessary parts.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2003322435A
公开(公告)日：2003-11-14
申请号：JP2002128532
申请日：2002-04-30
Applicant: Fuji Koki Corp , 株式会社不二工機
Inventor： WATANABE KAZUHIKO , KATAYAMA TOSHIHARU , SHIMURA TOMONORI
CPC classification number: F25B2341/0683
Abstract: PROBLEM TO BE SOLVED: To restrain a refrigerant flow rate, and to reduce a refrigerant flowing sound by delaying a pressure fluctuation in a pressure chamber in a power element on the basis of a pressure drop in a low pressure refrigerant passage of an expansion valve at compressor starting time in a refrigerating cycle. SOLUTION: A collar member 40 is pressed in a temperature sensing bar 36f for penetrating through an expansion valve body 30. The collar member 40 is integrally formed of a large diameter disk part 40a, and a small diameter cylinder part 40b rising from one surface, and has a through hole 40c in the center. The temperature sensing bar 36f is inserted into the through hole 40c. The disk part 40a is inserted into a lower pressure chamber 36c by abutting to a step part 30a of the valve body 30 formed between a lower pressure chamber 36c and a pressure equalizing hole 36e, and the cylinder part 40b is inserted into the pressure equalizing hole 36e. A small hole 30b for communicating the lower pressure chamber 36c with the low pressure refrigerant passage 34 is formed in parallel to the temperature sensing bar 36f in the step part 30a of the valve body 30. COPYRIGHT: (C)2004,JPO
Abstract translation: 要解决的问题：为了抑制制冷剂流量，并且通过基于在低功率元件的低压制冷剂通道中的压降来延迟功率元件中的压力室中的压力波动来减小制冷剂流动声音 膨胀阀在制冷循环中的压缩机启动时间。 解决方案：轴环构件40在温度感测杆36f中被挤压以穿透膨胀阀体30.套环构件40由大直径圆盘部分40a和小直径圆柱形部分40b一体地形成，小直径圆筒部分40b从 一个表面，并且在中心具有一个通孔40c。 温度感测棒36f插入到通孔40c中。 盘部40a通过与形成在下压室36c和均压孔36e之间的阀体30的台阶部30a抵接而插入下压室36c中，并且缸部40b插入压力平衡孔 36e。 在阀体30的台阶部30a中，与低温制冷剂通路34连通的小孔30b形成为平行于温度检测棒36f。（C）2004，JPO
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