INTERNAL INTERMEDIATE PRESSURE 2-STAGE COMPRESSION TYPE ROTARY COMPRESSOR
    1.
    发明公开
    INTERNAL INTERMEDIATE PRESSURE 2-STAGE COMPRESSION TYPE ROTARY COMPRESSOR 有权
    双级压缩机旋转之间STAGES压力

    公开(公告)号:EP1209361A4

    公开(公告)日:2002-12-04

    申请号:EP00956788

    申请日:2000-08-30

    申请人: SANYO ELECTRIC CO

    摘要: An internal intermediate pressure 2-stage compression type rotary compressor (10), which comprises an electrically-driven element (14) in a closed vessel (12), and first and second rotary compression elements (32, 34) driven by the electrically-driven element (14), wherein CO2 coolant gas subjected to first-stage compression by the first rotary compression element (32) is discharged into the closed vessel (12) and the discharged coolant gas of intermediate pressure is passed through an accumulator (106) and subjected to second-stage compression by the second rotary compression element (34), the rotary compression elements (32, 34) comprising upper and lower cylinders (38, 40), upper and lower rollers (46, 48) eccentrically rotating within the cylinders, upper and lower vanes (50, 52) contacting the rollers and partitioning the upper and lower cylinders into higher and lower pressure chambers, the volume ratio of the upper and lower cylinders (38, 40) for first and second stage compression being set at 1 : 0.65 so that the equilibrium pressure and the intermediate pressure are equal. Since the pressure variation at the start of operation is low, oil forming is suppressed and the pressure vessel is easy to design and can be reduced in weight.

    MULTI-STAGE COMPRESSION REFRIGERATING DEVICE
    2.
    发明公开
    MULTI-STAGE COMPRESSION REFRIGERATING DEVICE 有权
    KÄLTEVORRICHTUNGMIT MEHRSTUFIGER VERDICHTUNG

    公开(公告)号:EP1215450A4

    公开(公告)日:2005-01-19

    申请号:EP00962835

    申请日:2000-09-25

    申请人: SANYO ELECTRIC CO

    摘要: A multi-stage compression refrigerating device, wherein refrigerant delivered from a condenser (1) is divided so as to feed one refrigerant from first decompression means (3) to a first intermediate cooler (6) and the other refrigerant from second decompression means (7) to an evaporator (8), refrigerant flowing into the second decompression means (7) is heat-exchanged with the first intermediate cooler (6), refrigerant delivered from the evaporator (8) is sucked into low stage compression means (32) and, after refrigerant delivered from the first intermediate cooler (6) is merged into the refrigerant delivered from the low stage compression means (32), the merged refrigerant is sucked into high stage compression means (34), the displacement volume of the low stage compression means (32) being set at a value larger than the displacement volume of the high stage compression means (34), a one-way valve (9) allowing refrigerant to flow only from the first intermediate cooler (6) in the direction of a merged point (106) being provided between the first intermediate cooler (6) and the merged point (106), whereby the delivery gas refrigerant temperature of the high stage compression means (34) can be suppressed, and a time required until a circuit is stabilized at the beginning of starting of the refrigerating device can be reduced so as to increase an efficiency.

    摘要翻译: 一种多级压缩制冷装置,其中从冷凝器(1)输送的制冷剂被分开以便将来自第一减压装置(3)的一种制冷剂输送到第一中间冷却器(6),而来自第二减压装置(7)的另一种制冷剂 )流入第二减压装置(7)的制冷剂与第一中间冷却器(6)进行热交换,从蒸发器(8)排出的制冷剂被吸入低级压缩装置(32), ,在从第一中间冷却器(6)输送的制冷剂汇合成从低级压缩装置(32)输送的制冷剂之后,合并的制冷剂被吸入高级压缩装置(34),低级压缩的排量 (32)被设定为比高级侧压缩机构(34)的排出容积大的值,单向阀(9)使制冷剂仅从第一中间冷却器(6)流入第二中间冷却器 在第一中间冷却器(6)和合流点(106)之间设置合流点(106)的反作用,由此可以抑制高级压缩装置(34)的输送气体制冷剂温度, 可以降低制冷装置启动开始时的回路稳定性,提高效率。

    MULTI-STAGE COMPRESSION REFRIGERATING DEVICE
    5.
    发明公开
    MULTI-STAGE COMPRESSION REFRIGERATING DEVICE 审中-公开
    冷却装置具有多级压缩

    公开(公告)号:EP1215449A4

    公开(公告)日:2005-01-19

    申请号:EP00962834

    申请日:2000-09-25

    申请人: SANYO ELECTRIC CO

    摘要: A multi-stage compression refrigerating device, comprising low stage compression means (32) and high stage compression means (34), a condenser (1), first decompression means (3), an intermediate cooler (6), second decompression means (7), and an evaporator (8), wherein refrigerant delivered from the condenser (1) is divided so as to feed one refrigerant from the first decompression means (3) to the intermediate cooler (6) and the other refrigerant from the second decompression means (7) to the evaporator (8), refrigerant flowing into the second decompression means (7) is heat-exchanged with the intermediate cooler (6), refrigerant delivered from the evaporator (8) is sucked into low stage compression means (32), and refrigerant delivered from the intermediate cooler (6) is sucked into high stage compression means (34) together with refrigerant delivered from low stage compression means (32), a second intermediate cooler (5) being provided between the evaporator (8) and the low stage compression means (32), the other refrigerant heat-exchanged with the second intermediate cooler (5) being heat-exchanged with the intermediate cooler (6), whereby the delivery gas refrigerant temperature of the high stage compression means can be suppressed, and refrigerating effects of the refrigerating device at the beginning of starting can be increased to improve the efficiency.

    2-CYLINDER, 2-STAGE COMPRESSION TYPE ROTARY COMPRESSOR
    6.
    发明公开
    2-CYLINDER, 2-STAGE COMPRESSION TYPE ROTARY COMPRESSOR 审中-公开
    2-ZYLINDRIGER,2-STUFIGER ROTATIONSVERDICHTER

    公开(公告)号:EP1195526A4

    公开(公告)日:2004-06-16

    申请号:EP01912412

    申请日:2001-03-15

    申请人: SANYO ELECTRIC CO

    摘要: A 2-cylinder, 2-stage compression type rotary compressor of internal intermediate pressure type, comprising an electric motor part (14) stored in a closed container (12) and upper and lower cylinders (40) and (42) driven by the rotating shaft (16) of the electric motor part (14), wherein upper and lower rollers (48) and (50) fitted to upper and lower eccentric cams (44) and (46) provided on the rotating shaft (16) are rotated eccentrically in the cylinders, the insides of the cylinders are partitioned through upper and lower vanes (52) and (54), and a low-stage side compression part and a high-stage side compression part sucking and compressing refrigerant gas are provided and an intermediate partition plate (38) having an inner diameter hole (36) formed therein allowing the rotating shaft (16) to be inserted is provided between these compression parts, and the center of an inner diameter hole (36a) in the intermediate partition plate facing the upper roller is shifted to 90±45° in the rotating direction of the rotating shaft (16) relative to the center of the rotating shaft and on the basis of the position of the upper vane and the center of the inner diameter hole (36b) in the intermediate partition plate facing the lower roller is shifted to 270 to 360° in the rotating direction of the rotating shaft (16) for setting the intermediate plate, whereby the overlapped area of the upper and lower rollers and the intermediate partition plate can be increased at a portion where a pressure difference is increased and the leaked gas amount can be reduced so as to increase a volume efficiency and a compression efficiency.

    摘要翻译: 一种内部中压型的2缸2级压缩型旋转式压缩机,包括存储在密闭容器(12)中的电动机部分(14)和由旋转驱动的上部和下部气缸(40)和(42) (16)上的上部和下部偏心凸轮(44)和(46)上的上下辊(48)和(50)偏心地旋转的电动机部分 在气缸内,气缸的内部通过上下叶片(52)和(54)被分隔开,并且提供吸入和压缩制冷剂气体的低级侧压缩部分和高级侧压缩部分,并且中间体 在这些压缩部件之间设置有内部形成有允许旋转轴(16)插入的内径孔(36)的分隔板(38),并且中间分隔板中的内径孔(36a)的中心面向 上辊在t时刻移动到90±45° 使旋转轴16的旋转方向相对于旋转轴的中心旋转,并且基于上部叶片的位置和中间隔板中的面对下辊的内径孔36b的中心, 在用于设定中间板的旋转轴(16)的旋转方向上移动270°至360°,由此能够在压力差增大的部分增加上下辊和中间隔板的重叠面积 并且可以减少泄漏的气体量以增加体积效率和压缩效率。