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    SCROLL COMPRESSOR
    1.
    发明公开
    SCROLL COMPRESSOR 审中-公开

    公开(公告)号：EP2192304A4

    公开(公告)日：2015-04-22

    申请号：EP08831291

    申请日：2008-09-18

    申请人： MITSUBISHI HEAVY IND LTD

    发明人： FUJITA KATSUHIRO ,  MORO TOMOHISA ,  HIRATA HIROHUMI ,  OHTA MASAHIRO ,  WATANABE KAZUHIDE ,  KUWAHARA TAKAYUKI ,  TAKEUCHI MAKOTO ,  UKAI TETUZOU

    IPC分类号： F04C18/02 ,  F01C19/00 ,  F04C27/00

    CPC分类号： F04C18/0215 ,  F01C19/005 ,  F04C18/0276 ,  F04C18/0284 ,  F04C27/005

    摘要： An object of the present invention is to provide a scroll compressor capable of three-dimensional compression, which can prevent performance deterioration and performance variation due to gas leakage occurring on an outer peripheral side of a step portion of a spiral wrap and can achieve performance stabilization and performance improvement. In a scroll compressor configured to be capable of three-dimensional compression in a circumferential direction and a height direction of spiral wraps, in which top surfaces and bottom surfaces of spiral wraps (25B and 27B) are provided with step portions (25E and 27E) and the wrap height on the outer peripheral side of the step portion is made higher than the wrap height on the inner peripheral side, back-pressure introducing portions (55 and 57) where gaps between the back surfaces at step-portion ends of tip seals and groove bottom surfaces of tip seal grooves are made larger than a gap at the other portion are formed between the step-portion ends of tip seals (51 and 53) provided on top surfaces (25G and 27G) on the outer peripheral side of the spiral wraps and tip seal grooves (25L and 27L) to which the tip seals are fitted.

    SCROLL COMPRESSOR
    2.
    发明公开
    SCROLL COMPRESSOR 审中-公开

    公开(公告)号：EP2357364A4

    公开(公告)日：2016-03-30

    申请号：EP09830385

    申请日：2009-12-01

    申请人： MITSUBISHI HEAVY IND LTD

    发明人： TAKEUCHI MAKOTO ,  YAMAZAKI HIROSHI ,  MISHIMA SHINTA ,  MORO TOMOHISA

    IPC分类号： F04C18/02 ,  F04C29/02 ,  F04C29/04 ,  F04C29/12

    CPC分类号： F04C18/0215 ,  F04C18/0253 ,  F04C18/0261 ,  F04C29/028 ,  F04C29/04 ,  F04C29/12

    摘要： A scroll compressor includes a housing (2F); a fixed scroll fixed in the housing (2F); an orbiting scroll (4) that has an orbiting end plate (41) on which a spiral orbiting wall is provided upright and that is supported in the housing (2F) so as to be able to orbit while being prevented from rotating, in a state where the orbiting wall is engaged with the fixed wall; a suction section that makes refrigerant containing lubricant flow into a suction chamber provided in the housing (2F); and a plurality of supply flow paths (23) that are provided on a sliding surface between the housing (2F) and the orbiting end plate (41) and that are connected to the suction chamber. In the vicinity of an outer end, in a radial direction, of a supply flow path (23) extending toward the suction section, among the plurality of supply flow paths (23), a communication section (43) that always ensures a connection between the suction chamber and the supply flow path (23) is provided on at least one of the housing (2F) and the orbiting end plate (41).