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    • 3. 发明公开
    • Scroll compressor
    • Spiralverdichter
    • EP0768464A3
    • 1998-06-17
    • EP96116330
    • 1996-10-11
    • DENSO CORPNIPPON SOKEN
    • ISHII HIROKIMATSUDA MIKIOSANUKI MASAMI
    • F04C29/00F04C18/02
    • F04C29/0035F25B2400/13F25B2400/23
    • A scroll compressor having injection ports 70A and 70B opened to operating chambers Vc during a predetermined period of a complete compression cycle, so that a part of the refrigerant circulating in a refrigerating system is injected into the compression chambers from the injection ports. The injection ports are opened to an intermediate pressure chamber, which is at a pressure between the pressure of the refrigerant sucked into the compressor and the pressure of the refrigerant discharged from the compressor. The intermediate pressure chamber is arranged so as to eliminate pressure pulsations therein. Check valves 72A and 72B are provided in an end plate 54 of a stationary scroll member 50. Furthermore, relief valves may also be provided in the end plate for releasing the pressure of the operating chambers to a low pressure side of the refrigerating system.
    • 涡旋式压缩机具有在完成压缩循环的预定时间段期间向操作室Vc打开的喷射口70A和70B,使得在制冷系统中循环的制冷剂的一部分从喷射口喷射到压缩室中。 喷射口向中间压力室开口,中间压力室处于吸入压缩机的制冷剂的压力和从压缩机排出的制冷剂的压力之间的压力。 中压室布置成消除其中的压力脉动。 止回阀72A和72B设置在固定涡旋构件50的端板54中。此外,还可以在端板中设置用于将操作室的压力释放到制冷系统的低压侧的安全阀。
    • 8. 发明专利
    • DE69403881D1
    • 1997-07-24
    • DE69403881
    • 1994-10-20
    • DENSO CORPNIPPON SOKEN
    • INAGAKI MITSUOMATSUDA MIKIOOGAWA HIROSHIHISANAGA SHIGERUOKI YASUHIRO
    • F01C17/06F04C18/02F04C29/00
    • A self-rotation blocking mechanism in a scroll compressor having a movable scroll member and fixed scroll member fixed to a casing. The mechanism is constructed of circumferentially spaced opposing pairs of pins 9 and 10, which are connected to an end plate 12 of the movable scroll member 2 and a faced end wall of the casing 4, respectively, and which are in a side-by-side contacting relationship. The circumferential arrangement of the pins is such that, at every angular position of the movable scroll member, there exists at least one pair of the pins which generates a force in a direction opposite to a self-rotating torque applied to the movable scroll member caused by the compression reaction force. A locally concentrated arrangement of the pairs of the pins for generating such a force can be employed at the angular position which produces a larger value of self-rotating torque. Furthermore, the diameters of the pins are such that one half of the sum of the diameters is equal to or smaller than the radius of the orbital movement of the movable scroll member.