公开(公告)号：US06321544B1

公开(公告)日：2001-11-27

申请号：US09701176

申请日：2000-11-27

申请人： Hiroshi Kanai ,  Shunji Muta ,  Kenji Iijima ,  Shunichi Furuya

发明人： Hiroshi Kanai ,  Shunji Muta ,  Kenji Iijima ,  Shunichi Furuya

IPC分类号： F25B4902

CPC分类号： F04C28/28 ,  F04C28/06 ,  F25B1/047 ,  F25B9/008 ,  F25B41/04 ,  F25B49/005 ,  F25B49/025 ,  F25B2309/061 ,  F25B2400/13 ,  F25B2600/025 ,  F25B2700/1931 ,  Y02B40/32

摘要： The freezing cycle according to the present invention is provided with a first means for safety that leaks the high pressure to the low-pressure side when the high pressure reaches a level equal to or higher than a first specific pressure, a second means for safety that releases the high pressure into the atmosphere when the high pressure reaches a level equal to or higher than a second specific pressure, a third means for safety that stops the operation of the compressor when the high pressure reaches a level equal to or lower than a third specific pressure and a fourth means for safety that releases the low-pressure into the atmosphere when the low-pressure reaches a level equal to or higher than a specific pressure. In addition, a splash-preventing film is formed over specific areas of devices constituting the freezing cycle.

摘要翻译： 根据本发明的冷冻循环设置有第一安全装置，当高压达到等于或高于第一特定压力的水平时，将高压泄漏到低压侧;安全的第二装置， 当高压达到等于或高于第二比压的水平时，将高压释放到大气中;第三安全装置，用于在高压达到等于或低于第三特定压力的水平时停止压缩机的运行 比例压力和第四安全装置，当低压达到等于或高于特定压力的水平时，将低压释放到大气中。 此外，在构成冷冻循环的装置的特定区域上形成防溅膜。

公开(公告)号：US06334324B1

公开(公告)日：2002-01-01

申请号：US09743024

申请日：2001-01-04

申请人： Shunji Muta ,  Hiroshi Kanai ,  Kenji Iijima ,  Shunichi Furuya

发明人： Shunji Muta ,  Hiroshi Kanai ,  Kenji Iijima ,  Shunichi Furuya

IPC分类号： F25B4104

CPC分类号： F25B9/008 ,  F25B40/00 ,  F25B41/062 ,  F25B49/005 ,  F25B2309/061 ,  F25B2341/063 ,  F25B2400/0411

摘要： An expansion device capable of preventing an abnormal increase in the high-pressure in a freezing cycle and having, as an integrated unit thereof, a mechanism capable of quickly responding to an abnormal increase in the high-pressure and the low-pressure is provided. A means for displacement (bellows) 28 which becomes displaced in correspondence to the high-pressure is linked to a valve element 24 of a restrictor valve mechanism 32 to displace a rod 34 provided with a safety valve mechanism 33. If the high-pressure reaches a level equal to or higher than a first specific pressure (the limit to the normal operating pressure), a first portion 26 of the safety valve mechanism 33 becomes disengaged from a relief hole 27 that communicates between a high-pressure space 29 and a low-pressure passage 31 to be replaced by a second portion 25 which allows passage through the relief hole 27, thereby leaking the coolant in the high-pressure space 29 to the low-pressure passage 31 and preventing a further increase in the high-pressure. In addition, a low-pressure side rupture disk mechanism 40 that becomes ruptured if the low-pressure reaches a level equal to a second specific pressure to communicate between the low-pressure passage 31 and the atmosphere is provided at the low-pressure passage 31. A high-pressure side rupture disk mechanism 50 that becomes ruptured if the high-pressure reaches a level equal to or higher than a third specific pressure to communicate between the high-pressure passage 30 and the atmosphere is provided at the high-pressure passage 30.

摘要翻译： 提供一种能够防止冷冻循环中的高压异常增加的膨胀装置，并且具有能够快速响应高压和低压异常增加的机构的集成单元。 与限制阀机构32的阀元件24相连接，与高压相对应地移动的位移装置（波纹管）28连接到设置有安全阀机构33的杆34上。如果高压达到 等于或高于第一比压（正常工作压力的极限）的水平，安全阀机构33的第一部分26与高压空间29和低压空间29之间连通的排放孔27脱离 压力通道31被允许通过释放孔27的第二部分25代替，从而将高压空间29中的冷却剂泄漏到低压通道31并防止高压进一步增加。 另外，如果低压侧破裂盘机构40在低压通路31设置低压通路31和大气之间时，如果低压达到等于第二比压的水平而连通的低压侧破裂盘机构40 高压侧破裂盘机构50，如果在高压通路30和大气之间高压达到等于或高于第三比压的连通状态的高压侧破裂盘机构50， 30。

公开(公告)号：US20050178146A1

公开(公告)日：2005-08-18

申请号：US10516020

申请日：2003-05-23

申请人： Shunji Muta ,  Shunichi Furuya ,  Osamu Takazawa

发明人： Shunji Muta ,  Shunichi Furuya ,  Osamu Takazawa

IPC分类号： C09K5/04 ,  C10M171/00 ,  F25B9/00 ,  F25B31/00 ,  C10M101/00 ,  C09K5/00 ,  F25B1/00 ,  F25B43/02 ,  F25D1/00

CPC分类号： F25B9/008 ,  C09K5/041 ,  C09K2205/106 ,  C10M171/008 ,  C10M2205/0206 ,  C10M2207/2835 ,  C10M2209/04 ,  C10M2209/1033 ,  C10M2209/1095 ,  C10N2220/306 ,  C10N2240/30 ,  C10N2240/60 ,  F25B31/004 ,  F25B2309/061 ,  F25B2500/16 ,  Y02P20/544

摘要： A supercritical refrigeration cycle using CO2 for a refrigerant and having a pressure exceeding the critical point of the refrigerant on a high-pressure side, wherein: the supercritical refrigeration cycle allows the refrigerant and a part of a lubricating oil to circulate, and the lubricating oil used does not contain an epoxy-based oxygen scavenger or an additive which is thermally decomposed on the high-pressure side and its decomposed components make a chemical reaction to produce a compound having low solubility to the refrigerant so as to prevent a deposit from being produced at a portion where the refrigerant is decompressed.

摘要翻译： 对于制冷剂使用CO 2的超临界制冷循环，其压力超过高压侧的制冷剂的临界点，其中：超临界制冷循环允许制冷剂和一部分润滑 油循环，并且使用的润滑油不含有在高压侧热分解的环氧类除氧剂或添加剂，其分解成分进行化学反应，生成对制冷剂的溶解性低的化合物 以防止在制冷剂被减压的部分产生沉积物。

公开(公告)号：US5924856A

公开(公告)日：1999-07-20

申请号：US755262

申请日：1996-11-22

申请人： Toshihiro Murayama ,  Shunji Muta ,  Tomoyasu Takahashi

发明人： Toshihiro Murayama ,  Shunji Muta ,  Tomoyasu Takahashi

IPC分类号： F01C21/10 ,  F04C18/344

CPC分类号： F04C18/3446 ,  F01C21/10

摘要： A vane compressor has at least one of a front-side member and a rear-side member thereof formed with a suction chamber opening toward a cam ring, which has a substantially arcuate or annular shape and extends around a drive shaft. The cam ring has one end face formed with a refrigerant inlet port for supplying a low-pressure refrigerant into compression chambers formed between vanes. Alternatively, a front head is arranged on one end face of the cam ring. A shell encloses another end and an outer peripheral surface of the cam ring and holds a movable plate in a state opposed to the other end face of the cam ring such that the movable plate can be moved along a central axis of the drive shaft. An inside of the shell and the movable plate defines a high-pressure chamber therein. Each adjacent pair of the vanes, the front head, and the movable plate defines a compression chamber therein. The shell has a front-side end extending to an outer peripheral surface of the front head and fixed to the outer peripheral surface of the front head. The outer peripheral surface of the cam ring and an inner peripheral surface of the front-side end of the shell defines a low-pressure space therebetween. The cam ring is formed with an inlet port opening through an outer peripheral wall thereof for supplying a low-pressure refrigerant into the compression chambers during a suction stroke.

摘要翻译： 叶片式压缩机具有至少一个前侧构件和后侧构件，其中形成有朝向凸轮环开口的吸入室，该抽吸室具有基本上为弧形或环形的形状并围绕驱动轴延伸。 凸轮环具有形成有用于将低压制冷剂供给到形成在叶片之间的压缩室中的制冷剂入口的一个端面。 或者，在凸轮环的一个端面上设置有前头。 壳体包围凸轮环的另一端和外周表面，并且将可动板保持在与凸轮环的另一端面相对的状态，使得可动板可以沿着驱动轴的中心轴线移动。 壳体和可动板的内部在其中限定高压室。 每个相邻的一对叶片，前头和可动板在其中限定一个压缩室。 外壳具有延伸到前头的外周表面并固定到前头的外周表面的前侧端。 凸轮环的外周面和壳体的前侧端部的内周面在它们之间限定了低压空间。 凸轮环形成有通过其外周壁开口的入口，用于在吸入冲程期间将低压制冷剂供应到压缩室中。

公开(公告)号：US6022204A

公开(公告)日：2000-02-08

申请号：US156165

申请日：1998-09-17

申请人： Toshihiro Murayama ,  Shunji Muta ,  Tomoyasu Takahashi

发明人： Toshihiro Murayama ,  Shunji Muta ,  Tomoyasu Takahashi

IPC分类号： F01C21/10 ,  F04C18/344

CPC分类号： F04C18/3446 ,  F01C21/10

摘要： A vane compressor has at least one of a front-side member and a rear-side member thereof formed with a suction chamber opening toward a cam ring, which has a substantially arcuate or annular shape and extends around a drive shaft. The cam ring has one end face formed with a refrigerant inlet port for supplying a low-pressure refrigerant into compression chambers formed between vanes. Alternatively, a front head is arranged on one end face of the cam ring. A shell encloses another end and an outer peripheral surface of the cam ring and holds a movable plate in a state opposed to the other end face of the cam ring such that the movable plate can be moved along a central axis of the drive shaft. An inside of the shell and the movable plate defines a high-pressure chamber therein. Each adjacent pair of the vanes, the front head, and the movable plate defines a compression chamber therein. The shell has a front-side end extending to an outer peripheral surface of the front head and fixed to the outer peripheral surface of the front head. The outer peripheral surface of the cam ring and an inner peripheral surface of the front-side end of the shell defines a low-pressure space therebetween. The cam ring is formed with an inlet port opening through an outer peripheral wall thereof for supplying a low-pressure refrigerant into the compression chambers during a suction stroke.

摘要翻译： 叶片式压缩机具有至少一个前侧构件和后侧构件，其中形成有朝向凸轮环开口的吸入室，该抽吸室具有基本上为弧形或环形的形状并围绕驱动轴延伸。 凸轮环具有形成有用于将低压制冷剂供给到形成在叶片之间的压缩室中的制冷剂入口的一个端面。 或者，在凸轮环的一个端面上设置有前头。 壳体包围凸轮环的另一端和外周表面，并且将可动板保持在与凸轮环的另一端面相对的状态，使得可动板可以沿着驱动轴的中心轴线移动。 壳体和可动板的内部在其中限定高压室。 每个相邻的一对叶片，前头和可动板在其中限定一个压缩室。 外壳具有延伸到前头的外周表面并固定到前头的外周表面的前侧端。 凸轮环的外周面和壳体的前侧端部的内周面在它们之间限定了低压空间。 凸轮环形成有通过其外周壁开口的入口，用于在吸入冲程期间将低压制冷剂供应到压缩室中。

公开(公告)号：US20050254961A1

公开(公告)日：2005-11-17

申请号：US11187441

申请日：2005-07-20

申请人： Yuji Kawamura ,  Kazutaka Kowada ,  Kazuhiro Irie ,  Shunji Muta ,  Yoshie Sato

发明人： Yuji Kawamura ,  Kazutaka Kowada ,  Kazuhiro Irie ,  Shunji Muta ,  Yoshie Sato

IPC分类号： F04B27/18 ,  F04B1/26 ,  F04B1/12

CPC分类号： F04B27/1804 ,  F04B2027/1813 ,  F04B2027/1827 ,  F04B2027/1831 ,  F04B2027/1854 ,  F04B2027/1859

摘要： In order to reduce the amount of refrigerant circulating within a variable displacement compressor to thereby improve compression efficiency, a control valve is configured to comprise a ball valve for controlling the flow rate of refrigerant flowing from a discharge chamber to a crankcase, a spool valve for controlling the flow rate of refrigerant flowing from the crankcase to a suction chamber, a diaphragm for sensing suction pressure, and a solenoid for setting the suction pressure, wherein the spool valve starts flow rate control after the ball valve is fully closed or nearly fully closed, and the ball valve starts flow rate control after the valve lift of the spool valve is minimized or nearly minimized. As a result, a region is almost eliminated in which the ball valve and the spool valve are both open simultaneously during switching of flow rate control between the ball valve and the spool valve, which makes it possible to minimize the flow rate of the refrigerant circulating within the compressor without contributing to a refrigerating operation, to thereby improve the efficiency of the compressor.

摘要翻译： 为了减少在可变排量压缩机内循环的制冷剂量，从而提高压缩效率，控制阀被构造成包括用于控制从排出室流向曲轴箱的制冷剂的流量的球阀，用于 控制从曲轴箱流到吸入室的制冷剂的流量，用于感测吸入压力的隔膜和用于设定吸入压力的螺线管，其中滑阀在球阀完全关闭或几乎完全关闭之后启动流量控制 ，并且在阀芯的阀升程最小化或几乎最小化之后，球阀启动流量控制。 结果，几乎消除了在球阀和滑阀之间的流量控制切换期间球阀和滑阀同时打开的区域，这使得可以使制冷剂循环的流量最小化 在压缩机内不对制冷操作有贡献，从而提高压缩机的效率。

公开(公告)号：US06056525A

公开(公告)日：2000-05-02

申请号：US958266

申请日：1997-10-20

申请人： Toshihiro Murayama ,  Tomoyasu Takahashi ,  Yoshiteru Hirao ,  Hidetoshi Arahata ,  Katsumi Sakamoto ,  Syoichi Fukuda ,  Hiroshi Kawahara ,  Hiroyuki Suzuki ,  Mitsuya Ono ,  Kazuo Kume ,  Susumu Makihira ,  Shunji Muta

发明人： Toshihiro Murayama ,  Tomoyasu Takahashi ,  Yoshiteru Hirao ,  Hidetoshi Arahata ,  Katsumi Sakamoto ,  Syoichi Fukuda ,  Hiroshi Kawahara ,  Hiroyuki Suzuki ,  Mitsuya Ono ,  Kazuo Kume ,  Susumu Makihira ,  Shunji Muta

IPC分类号： F04C18/344 ,  F01C19/08

CPC分类号： F01C21/108 ,  F04C18/3446

摘要： There is provided a vane compressor which prevents leakage of refrigerant gas by decreasing the number of airtight interfaces between component parts and prevents seizure from occurring between its rotor and its side block without surface treatment of the side block. The vane compressor has a cam ring. The rotor is rotatably received in the cam ring. A first head is secured to one end face of the cam ring. A second head is secured to another end face of the cam ring in a manner such that the second head closes an opening of the another end face of the cam ring and one end face of the rotor can be brought into contact with the second head. The side block is received in the first head in a manner such that it closes an opening of the one end face of the cam ring and another end face of the rotor can be brought into contact with the side block.

摘要翻译： 提供了一种叶片式压缩机，其通过减少组件之间的气密界面的数量来防止制冷剂气体的泄漏，并且防止在其转子和其侧块之间发生发生，而不对侧块进行表面处理。 叶片式压缩机具有凸轮环。 转子可旋转地容纳在凸轮环中。 第一头部固定在凸轮环的一个端面上。 第二头被固定在凸轮环的另一个端面上，使得第二头部闭合凸轮环的另一端面的开口，并且转子的一个端面可以与第二头接触。 侧块以这样的方式容纳在第一头中，使得其闭合凸轮环的一个端面的开口，并且转子的另一个端面可以与侧块接触。

公开(公告)号：US06644936B1

公开(公告)日：2003-11-11

申请号：US10110024

申请日：2002-04-04

申请人： Shunji Muta

发明人： Shunji Muta

IPC分类号： F04B120

CPC分类号： F04B27/0878

摘要： The outer diameter &PHgr;d1 of a top face-side end portion 35 of pistons 7 is made slightly smaller than the outer diameter &PHgr;d0 of a hollow cylindrical portion 36 of the pistons 7 other than the top face-side end portion 35. Thus, the tilt load of a top face-side portion of the piston 7 is divided and distributed, and at the same time, lubricating oil is held at the top face-side end portion 35 of the piston 7.

摘要翻译： 活塞7的顶面侧端部35的外径Phid1比除了顶面侧端部35以外的活塞7的中空圆筒部36的外径Phid0稍小。因此，倾斜 将活塞7的顶面侧部分的负荷分开分配，同时将润滑油保持在活塞7的顶面侧端部35。

公开(公告)号：US5921273A

公开(公告)日：1999-07-13

申请号：US834592

申请日：1997-04-07

申请人： Mitsuya Ono ,  Katsumi Sakamoto ,  Nobuyuki Nakajima ,  Toshihiro Murayama ,  Shunji Muta ,  Tomoyasu Takahashi ,  Susumu Makihira

发明人： Mitsuya Ono ,  Katsumi Sakamoto ,  Nobuyuki Nakajima ,  Toshihiro Murayama ,  Shunji Muta ,  Tomoyasu Takahashi ,  Susumu Makihira

IPC分类号： F04C29/12 ,  F04B39/10 ,  F04C18/344 ,  F04C29/00 ,  F16K15/16

CPC分类号： F04C29/128 ,  F04B39/1073 ,  Y10T137/7559 ,  Y10T137/7889 ,  Y10T137/7892

摘要： A a cartridge type delivery valve assembly in which a valve seat surface and a valve are integrated in order to assure good seating characteristics in the delivery valve. The delivery valve assembly is formed by fixing together a valve holder provided with delivery holes, a roll valve that is mounted along the internal surface of the valve holder to freely open and close the delivery holes and a valve stopper that fixes the roll valve onto the valve holder and regulates the lift quantity of the roll valve, in an integrated manner using coupling members and the delivery valve assembly thus achieved is mounted in a valve insertion space.

摘要翻译： 一种盒式输送阀组件，其中阀座表面和阀被集成在一起，以确保输送阀中的良好的就座特性。 输送阀组件通过将设置有输送孔的阀保持器固定在一起而形成，沿着阀保持器的内表面安装的滚动阀，以自由地打开和关闭输送孔;以及阀止动器，其将辊阀固定到 阀座并且通过联接构件以一体的方式调节卷阀的提升量，并且由此实现的输送阀组件安装在阀插入空间中。