COMPRESSOR
    2.
    发明公开
    COMPRESSOR 审中-公开

    公开(公告)号:EP4056849A1

    公开(公告)日:2022-09-14

    申请号:EP20901818.3

    申请日:2020-11-30

    发明人: MASUDA, Masanori

    摘要: A compressor includes a fitted shaft portion (51) and a fitted tubular portion, between which an axially wider first sliding surface (53) and an axially narrower second sliding surface (54) are formed. The fitted shaft portion (51) has a first sliding surface (53) at a portion, in a circumferential direction, of the outer peripheral surface of the fitted shaft portion (51), and a second sliding surface (54), having a smaller axial width than an axial width of the first sliding surface (53), at another portion of the outer peripheral surface in the circumferential direction. A sliding portion between the fitted shaft portion (51) and the fitted tubular portion has a gap (56) which is adjacent to the second sliding surface (54) in the axial direction and into which a lubricating oil flows, and an oil retainer (57) for keeping the lubricating oil in the gap (56) from flowing out of the fitted shaft portion (51).

    ROTARY COMPRESSOR
    5.
    发明授权

    公开(公告)号:EP2894340B1

    公开(公告)日:2018-10-03

    申请号:EP13830480.3

    申请日:2013-08-19

    IPC分类号: F04C18/32 F04C29/02 F04C18/04

    摘要: A rotary compressor includes a cylinder, a piston, and a pair of bushes (45a and 45b) which sandwich a blade (35) integrally formed with the cylinder to support the blade (35). At least one of the pair of bushes (45a and 45b) includes an oil supply passage (1) formed from a flat side surface (7) to a curved side surface (6) of the bush (45a, 45b), a blade-side oil reservoir (2) formed on the flat side surface (7) such that one end of the oil supply passage (1) is open to the blade-side oil reservoir (2), and a groove-side oil reservoir (3) formed on the curved side surface (6) of the bush (45a, 45b) such that the other end of the oil supply passage (1) is open to the groove-side oil reservoir (3). The groove-side oil reservoir (3) is wider than the blade-side oil reservoir (2).

    FLUID MACHINERY
    8.
    发明公开
    FLUID MACHINERY 审中-公开

    公开(公告)号:EP2090745A4

    公开(公告)日:2016-10-26

    申请号:EP07832303

    申请日:2007-11-21

    申请人: DAIKIN IND LTD

    摘要: A casing (31) contains a compression mechanism (50) for compressing refrigerant, an expansion mechanism (60) for expanding refrigerant, and a rotary shaft (40) connecting the compression mechanism (50) and the expansion mechanism (60). A heat insulator (90) is provided which partitions the internal space of the casing (31) into a first space (48) in which the expansion mechanism (60) is placed and a second space (49) in which the compression mechanism (50) is placed. The heat insulator (90) is passed through by the rotary shaft (40). An elastically deformable O-ring (92) seals a clearance between the outer periphery of the heat insulator (90) and the inner periphery of the casing (31).