公开(公告)号：US4382370A

公开(公告)日：1983-05-10

申请号：US313496

申请日：1981-10-21

申请人： Kazutaka Suefuji ,  Tetsuya Arata ,  Yoshikatsu Tomita ,  Sumihisa Kotani ,  Naoshi Uchikawa ,  Akira Murayama

发明人： Kazutaka Suefuji ,  Tetsuya Arata ,  Yoshikatsu Tomita ,  Sumihisa Kotani ,  Naoshi Uchikawa ,  Akira Murayama

IPC分类号： F04C18/02 ,  F04C23/00 ,  F04C28/06 ,  F04C28/16 ,  F25B1/04 ,  F25B13/00

CPC分类号： F04C28/16 ,  F04C23/00 ,  F04C28/06 ,  F25B1/04 ,  F25B13/00

摘要： A refrigerating system including a refrigeration circuit and a scroll type compressor provided with two volume control mechanisms to allow the system to selectively perform full load operation and unloaded operation. The scroll type compressor includes two scroll members of known construction meshing with each other to define compression chambers and a suction chamber and is combined with the refrigeration circuit having an outdoor heat exchanger, an expansion valve, an indoor heat exchanger and a four-way change-over valve to provide a heat pump type refrigerating system. The volume control mechanisms each include a pair of bypass apertures in the fixed scroll member communicating with a valve chamber having a valve member slidably mounted therein and normally biased to an open position by a spring. The bypass apertures, of which one communicates with the suction chamber and the other communicates with one of the compression chambers, and the valve chamber constitute a bypass passageway. A pressure introducing pipe opens in the valve chamber. Upward movement of the valve member brings the two bypass apertures in communication with each other through the valve chamber to enable the system to perform a volume control operation. In another application, four volume control mechanisms are located symmetrically and divided into two blocks through a flow passage switching device to assign two mechanisms to one block. By this arrangement, the system is able to perform volume control operation in three stages, or able to operate selectively at maximum load, intermediate load and minimum load.

摘要翻译： 一种制冷系统，包括制冷回路和涡旋式压缩机，该压缩机设置有两个容积控制机构，以允许系统选择性地执行满载操作和卸载操作。 涡旋式压缩机包括两个已知构造的涡旋构件，其彼此啮合以限定压缩室和吸入室，并与具有室外热交换器，膨胀阀，室内热交换器和四通变换的制冷回路组合 提供一种热泵式制冷系统。 音量控制机构各自包括在固定涡旋构件中的一对旁通孔，其与具有可滑动地安装在其中的阀构件的阀室连通，并且通过弹簧通常偏压到打开位置。 旁通孔与吸入室连通，另一个与一个压缩室连通，并且阀室构成旁路通路。 压力引入管在阀室中打开。 阀构件的向上运动使两个旁通孔通过阀室彼此连通，以使系统能够执行体积控制操作。 在另一个应用中，四个音量控制机构被对称地定位并且通过流路切换装置分成两个块，以将两个机构分配给一个块。 通过这种安排，该系统能够在三个阶段进行音量控制操作，或能够在最大负载，中间负载和最小负载下选择性地进行操作。

公开(公告)号：US4557675A

公开(公告)日：1985-12-10

申请号：US621371

申请日：1984-06-18

申请人： Akira Murayama ,  Hiroaki Kuno ,  Naoshi Uchikawa ,  Takahiro Tamura ,  Takao Mizuno ,  Sumihisa Kotani ,  Yoshikatsu Tomita ,  Tetsuya Arata ,  Masao Shiibayashi ,  Kazutaka Suefuji

发明人： Akira Murayama ,  Hiroaki Kuno ,  Naoshi Uchikawa ,  Takahiro Tamura ,  Takao Mizuno ,  Sumihisa Kotani ,  Yoshikatsu Tomita ,  Tetsuya Arata ,  Masao Shiibayashi ,  Kazutaka Suefuji

IPC分类号： F04C18/02 ,  F04C23/00 ,  F04C27/00 ,  F01C1/04

CPC分类号： F04C27/005 ,  F04C18/0215 ,  F04C23/008

摘要： A scroll-type fluid machine having an orbiting scroll member and a stationary scroll member each having an end plate and a spiral wrap of at least two turns protruding upright from one of the sides of the end plates. The orbiting scroll member has a back pressure chamber formed on the back side thereof and communicating with the compression spaces of the fluid machine through pressure equalizing ports formed in the orbiting scroll member, so that the pressure of the fluid under compression is introduced to the back pressure chamber to produce an axial thrusting force for pressing the orbiting scroll member towards the stationary scroll member. The positions of the pressure equalizing ports in terms of the wrap angle .lambda. of the wraps are selected to meet the following condition:.lambda.d>.lambda.>.lambda.d-2.pi.,where, .lambda.d represents the wrap angle of the wraps when the volume of the compression spaces is minimized. The equalizing ports are positioned at .lambda. and .lambda.+2 .pi..

摘要翻译： 一种涡旋式流体机械，具有绕动涡旋件和固定涡旋件，每个涡卷件和固定涡旋件均具有端板和至少两匝螺旋形卷绕，该螺旋卷绕件从端板中的一个侧面竖直突出。 绕动涡旋构件具有形成在其后侧的背压室，并且通过形成在绕动涡旋构件中的压力平衡端口与流体机械的压缩空间连通，使得压缩下的流体的压力被引入到后部 以产生用于将动涡旋构件朝静止涡旋构件按压的轴向推压力。 根据包装的包角λ来选择压力平衡端口的位置以满足以下条件：λd>λ>λd-2 pi，其中，λd表示卷的卷绕角度 的压缩空间被最小化。 均衡端口位于λ和λ+ 2 pi处。

公开(公告)号：US4560330A

公开(公告)日：1985-12-24

申请号：US662691

申请日：1984-10-19

申请人： Akira Murayama ,  Hiroaki Kuno ,  Naoshi Uchikawa ,  Takahiro Tamura ,  Takao Mizuno ,  Sumihisa Kotani

发明人： Akira Murayama ,  Hiroaki Kuno ,  Naoshi Uchikawa ,  Takahiro Tamura ,  Takao Mizuno ,  Sumihisa Kotani

IPC分类号： F04C18/02 ,  F04C23/00 ,  F04C28/26 ,  F04C28/28 ,  F04C29/00 ,  F25B31/02 ,  F01C1/04 ,  F04B49/08

CPC分类号： F04C28/26 ,  F04C18/0215 ,  F04C29/0021 ,  F25B31/026 ,  F04C2250/10 ,  F04C2270/72 ,  F04C23/008 ,  F05B2250/50

摘要： Disclosed is a scroll-type fluid machine which has an orbiting scroll member and a stationary scroll member each having an end plate and a spiral wrap protruding upright therefrom. The scroll members are assembled together such that their wraps mesh with each other to form therebetween closed chambers of volumes which are progressively decreased as the chambers are moved toward the centers of the scroll members as a result of an orbital movement of the orbiting scroll member with respect to the stationary scroll member. The machine is suitable for use as a refrigerant compressor in a refrigeration system. A fluid check valve is disposed in the refrigerant gas suction passage connected to the suction side of the machine, so as to prevent any reversing of the orbiting scroll member. A passage is formed to provide a communication between a suction chamber defined by the scroll members and another closed chamber. A relief valve is disposed in this communication passage so as to relief any abnormal high pressure from the suction chamber.

摘要翻译： 公开了一种涡旋式流体机械，其具有旋转涡旋构件和固定涡旋构件，每个涡旋构件和固定涡旋构件具有端板和从其突出的螺旋形涡卷。 涡旋构件被组装在一起，使得它们的涡卷彼此啮合以在其间封闭的容积室形成，随着腔体朝向涡旋构件的中心而移动的腔体逐渐减小，这是由于绕动涡旋构件的轨道运动导致的， 相对于固定涡旋构件。 该机适用于制冷系统中的制冷剂压缩机。 流体止回阀设置在与机器的吸入侧连接的制冷剂气体吸入通道中，以防止绕动涡旋件的任何反转。 形成通道以提供由涡旋件和另一封闭室限定的吸入室之间的连通。 安全阀设置在该连通通道中，以便从吸入室中消除任何异常的高压。

公开(公告)号：US4774816A

公开(公告)日：1988-10-04

申请号：US124279

申请日：1987-11-23

申请人： Naoshi Uchikawa ,  Akira Murayama ,  Tetsuya Arata

发明人： Naoshi Uchikawa ,  Akira Murayama ,  Tetsuya Arata

IPC分类号： F04C28/26 ,  F04C18/02 ,  F04C28/16 ,  F25B49/02 ,  F25B13/00

CPC分类号： F04C28/16 ,  F25B49/022 ,  F25B2600/021 ,  Y02B30/741

摘要： An air conditioner includes a scroll-type refrigerant compressor driven at a speed variable in accordance with the thermal load on the air conditioner. The compressor has stationary and orbiting scroll members assembled together to define compression chambers in which a refrigerant gas is compressed and finally discharged into a discharger chamber through a discharge port formed in the center of the end plate of the stationary scroll member. At least one bypass port and an associated check valve are provided in and on the end plate of the stationary scroll member at such a position that the check valve opens to allow the gas to be directly discharged from an associated compression chamber into the discharge chamber when the compressor is operated under such a condition that the ratio of the operation pressure ratio to the design pressure ratio of the compressor falls within a range between 0.5 and 0.75.

摘要翻译： 空调机包括以根据空调的热负荷的速度变化而驱动的涡旋式制冷剂压缩机。 压缩机具有组装在一起的固定和绕动涡旋件，以限定制冷剂气体被压缩的压缩室，并最终通过形成在固定涡旋件的端板中心的排放口排出到排放室中。 在止动阀打开的位置处，至少一个旁通口和相关的止回阀设置在固定涡旋构件的端板中和其上，从而允许气体从相关联的压缩室直接排出到排放室中， 在压缩机的操作压力比与压缩机的设计压力比的比率落在0.5和0.75之间的条件下运行。

公开(公告)号：US4669962A

公开(公告)日：1987-06-02

申请号：US767812

申请日：1985-08-21

申请人： Takao Mizuno ,  Tetsuya Arata ,  Naoshi Uchikawa ,  Akira Murayama ,  Takahiro Tamura ,  Hiroaki Kuno

发明人： Takao Mizuno ,  Tetsuya Arata ,  Naoshi Uchikawa ,  Akira Murayama ,  Takahiro Tamura ,  Hiroaki Kuno

IPC分类号： F04C18/02 ,  F04C27/00 ,  F04C29/02 ,  F04C18/04 ,  F04C29/10

CPC分类号： F04C27/005

摘要： A scroll compressor including a stationary scroll and an orbiting scroll, with an intermediate pressure chamber being defined on a back side of the orbiting scroll member and being in communication with a pressure chamber through a communication hole to produce a force for pressing the orbiting scroll against the stationary scroll. Oil in an oil sink is supplied to sliding portions by a differential pressure between a pressure in the air tight container and a pressure in the intermediate pressure chamber. A valve is provided for switching the connection of the intermediate pressure chamber to a higher intermediate pressure side or to a lower intermediate pressure side of the compressor. The valve is constructed such that the intermediate pressure chamber is connected to the lower intermediate pressure side of the compressor when a discharge pressure of the compressor is lower than a certain value and connected to the higher intermediate pressure side of the compressor when the discharge pressure is higher than a certain value so that a proper oil supply pressure is maintained over a wide operational range.

摘要翻译： 一种涡旋式压缩机，包括固定涡旋件和绕动涡旋件，其中间压力室限定在所述绕动涡旋件的背面，并且通过连通孔与压力室连通，以产生用于将所述绕动涡旋件压靠在 固定卷轴。 通过气密容器中的压力和中间压力室之间的压力之间的压差将油槽中的油供给到滑动部。 设置有用于将中压室的连接切换到压缩机的较高中压侧或较低中压侧的阀。 该阀被构造成使得当压缩机的排出压力低于一定值时，中间压力室连接到压缩机的下部中间压力侧，并且当排出压力为 高于一定值，使得在广泛的操作范围内保持适当的供油压力。

公开(公告)号：US4818195A

公开(公告)日：1989-04-04

申请号：US208110

申请日：1988-06-17

申请人： Akira Murayama ,  Naoshi Uchikawa ,  Ryoichi Kuroshima ,  Hiroaki Kuno ,  Tetsuya Arata ,  Masao Shiibayashi

发明人： Akira Murayama ,  Naoshi Uchikawa ,  Ryoichi Kuroshima ,  Hiroaki Kuno ,  Tetsuya Arata ,  Masao Shiibayashi

IPC分类号： F04C28/28 ,  F04B39/10 ,  F04C18/02 ,  F04C23/00 ,  F04C29/00 ,  F04C18/04 ,  F04C29/08

CPC分类号： F04C18/0215 ,  F04C29/0035 ,  F04C2250/102 ,  F04C23/008 ,  F05B2250/502

摘要： A scroll compressor is provided with a two groups of commmunication ports formed in and extending through an end plate of a stationary scroll member. Each group includes two or more communication ports. A lead valve is associated with each of the two groups of communication ports and is operable by a pressure differential in between an associated compression chamber and the discharge chamber to communicate the communication ports of the group to the discharge chamber to prevent the occurrence of over-compression in the compression chamber.

摘要翻译： 涡旋式压缩机设置有形成在固定涡旋构件的端板中并延伸穿过固定涡旋构件的端板的两组通信端口。 每个组包括两个或更多个通信端口。 引导阀与两组连通端口中的每一个相关联，并且可通过在相关联的压缩室和排放室之间的压差进行操作，以将该组的连通端口连通到排出室，以防止过度发生， 在压缩室内压缩。

公开(公告)号：US4730997A

公开(公告)日：1988-03-15

申请号：US898211

申请日：1986-08-20

申请人： Takahiro Tamura ,  Naoshi Uchikawa ,  Akira Murayama ,  Takao Mizuno

发明人： Takahiro Tamura ,  Naoshi Uchikawa ,  Akira Murayama ,  Takao Mizuno

IPC分类号： F04C29/02 ,  F04C18/02 ,  F04C18/06 ,  F04C23/00 ,  F04C18/04

CPC分类号： F04C23/008 ,  F04C2240/603 ,  Y10S418/01

摘要： The scroll type compressor has a hermetic casing, and a scroll compressor section and an electric motor section which are contained within the hermetic casing. These compressor and electric motor sections are fitted through a frame in the hermetic casing. In a portion of the frame intermediate between the compressor and the electric motor section, a plurality of segmented concave spaces are defined. At an upper portion in the hermetic casing, a discharge space which communicates with a discharge port of the scroll compressor section is defined. Further, in a portion of the casing between the compressor and the motor section, a delivery port which open to one of the concave spaces in the frame is provided. Furthermore, at least one fluid passage is provided in an outer periphery of the compressor section and this passage makes the discharge space communicate with the other concave spaces in the frame. A compressed gas from the scroll compressor section is introduced via the discharge space and the fluid passage into the concave spaces, and is introduced from the delivery port to the outside of the compressor after separating the oil contained within the compressed gas in these concave spaces.

摘要翻译： 涡旋式压缩机具有密封壳体和容纳在密封壳体内的涡旋压缩机部分和电动机部分。 这些压缩机和电动机部分通过框架安装在密封壳体中。 在压缩机和电动机部分之间的框架的一部分中，限定了多个分段的凹形空间。 在密封壳体的上部，限定与涡旋压缩机部的排出口连通的排出空间。 此外，在压缩机和电动机部之间的壳体的一部分中，设置有向框架中的一个凹部空间开放的输送口。 此外，在压缩机部分的外周设置至少一个流体通道，并且该通道使得放电空间与框架中的其它凹入空间连通。 来自涡旋压缩机部的压缩气体经由放电空间和流体通路导入凹部空间，在将这些凹部空间内的压缩气体中所含的油分离后，从输送口向压缩机外部导入。

公开(公告)号：US4714415A

公开(公告)日：1987-12-22

申请号：US893177

申请日：1986-08-05

申请人： Takao Mizuno ,  Naoshi Uchikawa ,  Akira Murayama ,  Takahiro Tamura ,  Ryoichi Kuroshima

发明人： Takao Mizuno ,  Naoshi Uchikawa ,  Akira Murayama ,  Takahiro Tamura ,  Ryoichi Kuroshima

IPC分类号： F04C18/02 ,  F04C28/16 ,  F04C18/04 ,  F04C29/10

CPC分类号： F04C28/16 ,  F04C18/0215 ,  F04C2250/10 ,  F05B2250/50

摘要： A scroll compressor comprises an orbiting scroll and a fixed scroll, each of which includes a spiral wrap. These orbiting and fixed scrolls define between their wraps a plurality of close spaces at symmetrical positions. These closed spaces are moved toward the center of the scrolls by means of orbital motion of the orbiting scroll relative to the fixed scroll for reducing their capacities to compress fluid confined therein. Upon starting the compressor, some of the spaces which are in mid course of compressing and the other closed spaces which locate at the downstream side just before the communication with a discharge port, are communicated with each other through valves which open when pressure in the closed spaces at the upstream side is higher than that in the closed spaces at the downstream side, whereby a loading torque upon starting is decreased.

摘要翻译： 涡旋压缩机包括绕动涡旋件和固定涡旋件，每个涡旋件包括螺旋涡卷。 这些旋转和固定的涡卷在它们的包裹之间限定了对称位置处的多个关闭空间。 这些封闭空间通过绕动涡旋件相对于固定涡旋件的轨道运动而朝向涡卷的中心移动，以减小其压缩在其中的流体的能力。 在启动压缩机时，处于压缩中期的一些空间和位于与排出口连通之前的下游侧的其它封闭空间通过在封闭的压力下打开的阀彼此连通 上游侧的空间高于下游侧的封闭空间，因此起动时的负载转矩降低。

公开(公告)号：US4989414A

公开(公告)日：1991-02-05

申请号：US425229

申请日：1989-10-23

申请人： Akira Murayama ,  Hiroaki Kuno ,  Naoshi Uchikawa ,  Jyoji Okamoto ,  Hiroyuki Imamura

发明人： Akira Murayama ,  Hiroaki Kuno ,  Naoshi Uchikawa ,  Jyoji Okamoto ,  Hiroyuki Imamura

IPC分类号： F04C28/08 ,  F04C18/02 ,  F04C28/16 ,  F24F11/00 ,  F25B1/00 ,  F25B1/04 ,  F25B13/00 ,  F25B41/04 ,  F25B49/02

CPC分类号： F04C28/16 ,  F04C28/08 ,  F24F11/00 ,  F25B1/04 ,  F25B13/00 ,  F25B41/04 ,  F25B49/025 ,  F04C2240/403 ,  F24F2011/0046 ,  F24F2203/021 ,  F24F2221/54 ,  F24F2221/56 ,  F25B2313/023 ,  F25B2600/021 ,  Y02B30/741

摘要： An air conditioner provided with a refrigerant circuit formed by connecting with piping a refrigerant compressor, a condenser, an expansion means and an evaporator, an inverter power supply means for controlling the rotational speed of an electric motor for driving the refrigerant compressor, a load detector, and a controller for controlling the inverter power supply means on the basis of an output from the load detector. A refrigerant flow passage controlling mechanism is provided to change the rate at which the refrigerant flows through the condenser on the basis of a control command from the controller, thereby making it possible to reduce or increase the discharge rate without extending the range of changes in the rotational speed of the compressor. The compressor can be controlled according to a wide range of changes in the load to operate with an operation range which ensures high efficiency of the compressor operation.

摘要翻译： 一种设置有制冷剂回路的空气调节器，其通过制冷剂压缩机，冷凝器，膨胀装置和蒸发器与管道连接而形成，用于控制用于驱动制冷剂压缩机的电动机的转速的逆变器电源装置，负载检测器 以及控制器，用于根据来自负载检测器的输出来控制逆变器电源装置。 设置制冷剂流路控制机构，根据来自控制器的控制指令，使制冷剂流过冷凝器的速度变化，从而可以在不扩大排出量的范围的情况下降低或提高排出速度 压缩机的转速。 压缩机可以根据负载变化的大范围进行控制，以保证压缩机运行的高效率的运行范围。

公开(公告)号：US5017108A

公开(公告)日：1991-05-21

申请号：US488942

申请日：1990-03-05

申请人： Akira Murayama ,  Naoshi Uchikawa ,  Takahiro Tamura ,  Takao Mizuno ,  Kazuo Sakurai

发明人： Akira Murayama ,  Naoshi Uchikawa ,  Takahiro Tamura ,  Takao Mizuno ,  Kazuo Sakurai

IPC分类号： F04C18/02 ,  F04C23/00 ,  F04C29/02

CPC分类号： F04C18/0215 ,  F04C29/025 ,  F04C23/008

摘要： A scroll compressor comprises an orbiting scroll and a fixed scroll, each of which has a wrap formed on an end plate in upstanding position. These orbiting and fixed scrolls are assembled together with the wraps facing inwardly to each other so as to define a plurality of spaces by the wraps and the end plates of both scrolls. These spaces move toward the center of both scrolls during the orbiting movement of the orbiting scroll so as to reduce the respective capacities of the spaces. Thus, compression of a fluid is carried out. This compressor also includes a motor for driving the orbiting scroll and a driving shaft for connecting the orbiting scroll and the motor. At the end of the driving shaft on the motor side, a first oil supply pump is provided with its suction port communicating to an oil sump of the compressor. Also, a second oil supply pump communicating with the discharge side of the second oil supply pump is provided at the end of the driving shaft on the compressor section side, whereby the oil supply pump of the compressor is made of a multistage type.

摘要翻译： 涡旋压缩机包括绕动涡旋件和固定涡旋件，每个涡旋件具有以直立位置形成在端板上的涡卷。 这些旋转和固定的涡卷组装在一起，其中卷绕物彼此面向内，以便通过两个卷轴的卷边和端板限定多个空间。 这些空间在轨道运行的涡卷的轨道运动期间朝向两个涡卷的中心移动，以便减小空间的相应容量。 因此，进行流体的压缩。 该压缩机还包括用于驱动绕动涡旋件的马达和用于连接绕动涡旋盘和马达的驱动轴。 在电动机侧的驱动轴的端部，第一供油泵设有与吸入口连通的压缩机的油底壳。 此外，在压缩机部侧的驱动轴的端部设置有与第二供油泵的排出侧连通的第二供油泵，由此，压缩机的供油泵由多级型制成。