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    • 2. 发明授权
    • Refrigerating system using scroll type compressor
    • 制冷系统采用涡旋式压缩机
    • US4382370A
    • 1983-05-10
    • US313496
    • 1981-10-21
    • Kazutaka SuefujiTetsuya ArataYoshikatsu TomitaSumihisa KotaniNaoshi UchikawaAkira Murayama
    • Kazutaka SuefujiTetsuya ArataYoshikatsu TomitaSumihisa KotaniNaoshi UchikawaAkira Murayama
    • F04C18/02F04C23/00F04C28/06F04C28/16F25B1/04F25B13/00
    • F04C28/16F04C23/00F04C28/06F25B1/04F25B13/00
    • 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.
    • 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。
    • 4. 发明授权
    • Scroll fluid apparatus
    • 滚动流体装置
    • US4596521A
    • 1986-06-24
    • US559088
    • 1983-12-07
    • Akira MurayamaHiroaki KunoNaoshi UchikawaTakahiro TamuraTakao MizunoMasao Shiibayashi
    • Akira MurayamaHiroaki KunoNaoshi UchikawaTakahiro TamuraTakao MizunoMasao Shiibayashi
    • F04C29/02F01C1/02F04C23/00F04C18/04F04C29/10
    • F01C1/0215F04C2250/10F04C23/008F05B2250/50
    • A scroll fluid apparatus including a fixed scroll member and an orbiting scroll member each having an end plate and a wrap, the two scroll members being maintained in meshing engagement with each other with the respective wraps facing inwardly to allow the orbiting scroll member to move in orbiting movement with respect to the fixed scroll member without rotating on its own axis. The fixed scroll member is formed with a discharge port at its central portion and a suction port at its outer peripheral surface to draw a gas by suction through the suction port and allow same to flow in a sealed space defined between the two scroll members and reducing its space during operation to thereby compress the gas and discharge the compressed gas through the discharge port. A clearance is defined between an outer peripheral surface of the end plate of the orbiting scroll member and a wall facing the outer peripheral surface and successively changing its volume as the orbiting scroll member moves in orbiting movement, and at least one pressure relieving space is provided to communicate with the clearance for conveniently discharging a fluid from the clearance to avoid compression of the fluid.
    • 一种涡旋流体装置,包括固定涡旋构件和旋转涡旋构件,每个涡旋构件具有端板和涡卷,所述两个涡旋构件保持彼此啮合,各个涡卷面向内,以允许绕动涡旋构件移动 相对于固定涡旋构件的轨道运动而不在其自身轴线上旋转。 固定涡旋构件在其中心部分形成有排出口,在其外周面形成有吸入口,通过抽吸口抽吸气体,并允许其在限定在两个涡旋构件之间的密封空间中流动并且减少 其在操作期间的空间,从而压缩气体并通过排出口排出压缩气体。 在绕动涡旋构件的端板的外周面与面向外周面的壁之间形成间隙,并且随着绕动涡旋构件在轨道运动中移动而依次改变其体积,并且设置至少一个减压空间 与间隙通信,以方便地从间隙排放流体,以避免压缩流体。
    • 5. 发明授权
    • Scroll compressor with pressure differential maintained for supplying oil
    • 涡轮压缩机保持压力差供油
    • US4669962A
    • 1987-06-02
    • US767812
    • 1985-08-21
    • Takao MizunoTetsuya ArataNaoshi UchikawaAkira MurayamaTakahiro TamuraHiroaki Kuno
    • Takao MizunoTetsuya ArataNaoshi UchikawaAkira MurayamaTakahiro TamuraHiroaki Kuno
    • F04C18/02F04C27/00F04C29/02F04C18/04F04C29/10
    • F04C27/005
    • 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.
    • 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。
    • 10. 发明授权
    • Scroll-type fluid machine with seal to aid lubrication
    • 带有密封件的滚动式流体机械,以帮助润滑
    • US4743181A
    • 1988-05-10
    • US819260
    • 1986-01-16
    • Akira MurayamaHiroaki KunoNaoshi UchikawaTakahiro TamuraTakao Mizuno
    • Akira MurayamaHiroaki KunoNaoshi UchikawaTakahiro TamuraTakao Mizuno
    • F04C18/02F04C23/00F04C23/02F04C29/00F04C18/04F04C29/02
    • F04C29/0021F04C23/008F04C2240/603
    • A scroll-type fluid machine for an air conditioning machine comprises a hermetically closed vessel which houses therein an orbiting scroll member and a stationary scroll member forming together a compressor portion, an Oldham ring member for preventing the orbiting scroll member from rotating about its own axis, a driving motor having a driving shaft connected to the orbiting scroll member for driving the same, and a frame for supporting the shaft, a low pressure liquid introducing passage for making the interior of the hermetically closed vessel a low pressure chamber, and a high pressure fluid discharge passage. A sealing member is provided at the back of the orbiting scroll member with its surfaces slidably contacting the frame and the orbiting scroll member to form a chamber separated from the low pressure chamber. A fluid which is in mid course of being compressed and has an intermediate pressure between suction pressure and discharge pressure is introduced into the separated chamber to maintain the same at the intermediate pressure, thereby overcoming a thrust force exerted on the orbiting scroll member to press the same against the stationary scroll member and effecting a proper supply of lubricating oil to moving portions of the machine.
    • 一种用于空调机的涡旋式流体机器包括一个密闭容器,其中容纳有旋转涡旋构件和一个形成在一起的压缩机部分的固定涡旋构件,用于防止绕动涡旋构件围绕其自身轴线旋转的十字环构件 驱动马达,其驱动轴连接到用于驱动该旋转涡旋构件的驱动轴,以及用于支撑轴的框架,用于使密闭容器内部形成低压室的低压液体引入通道, 压力流体排出通道。 密封构件设置在绕动涡旋构件的后部,其表面可滑动地接触框架和绕动涡旋构件,以形成与低压室分离的室。 在被压缩的中间流体并且在吸入压力和排出压力之间具有中间压力的流体被引入到分离的室中以将其保持在中间压力,从而克服施加在绕动涡旋件上的推力以将 相对于固定涡旋构件,并且对机器的移动部分施加适当的润滑油供应。