1.
    发明专利
    未知

    公开(公告)号:DE69118160T2

    公开(公告)日:1996-08-14

    申请号:DE69118160

    申请日:1991-12-05

    Abstract: An enclosed motor-driven compressor includes a vertical crankshaft (25) rotatably supported by two ball bearings (26, 27) and having an eccentric portion (28) through which a motor element (21) and a compressor element (22) are operatively connected. The two ball bearings (26, 27) are disposed on opposite sides of the eccentric portion (28) so that a reaction force of a piston (35) which is exerted on the eccentric portion (28) is supported evenly by the ball bearings (26, 27). With the ball bearings (26, 27) thus arranged, the load on the crankshaft (25) is lowered and the efficiency of the motor element (21) is increased. A lubricating oil (33) held at the bottom of a container (20) is sucked through an internal groove of the crankshaft (25) and then supplied from outlets (37b, 37c) to the respective ball bearings (26, 27). The ball bearings (26, 27) thus lubricated have a prolonged service life. The compressor may have an oil sump disposed either above or below the ball bearing (26) for improving lubricating condition of the ball bearing (26).

    3.
    发明专利
    未知

    公开(公告)号:DE69217744T2

    公开(公告)日:1997-07-10

    申请号:DE69217744

    申请日:1992-07-03

    Abstract: A low noise, hermetic motor-driven compressor suitable for used in a refrigerator or an air-conditioner is disclosed in which a closed container (20) has a spherical wall portion (20a) on which a combined motor-and-compressor assembly (23) is supported via a suspension mechanism (24), and the suspension mechanism (24) includes two snubber stays (27) having spherical portions (27a) complementary in contour to the shape of the spherical wall portion (20a) of the closed container (20) and welded to the spherical wall portion (20a). The spherical wall portion (20a) increases the stiffness of the closed container (20), which stiffness is enhanced by the spherical portions (27a) of the snubber stays (27). The thus reinformed closed container (20) is unlikely to vibrate in resonance with the vibration of the combined motor-and-compressor assembly (23). Thus, the hermetic motor-driven compressor is able to operate silently.

    4.
    发明专利
    未知

    公开(公告)号:DE69217744D1

    公开(公告)日:1997-04-10

    申请号:DE69217744

    申请日:1992-07-03

    Abstract: A low noise, hermetic motor-driven compressor suitable for used in a refrigerator or an air-conditioner is disclosed in which a closed container (20) has a spherical wall portion (20a) on which a combined motor-and-compressor assembly (23) is supported via a suspension mechanism (24), and the suspension mechanism (24) includes two snubber stays (27) having spherical portions (27a) complementary in contour to the shape of the spherical wall portion (20a) of the closed container (20) and welded to the spherical wall portion (20a). The spherical wall portion (20a) increases the stiffness of the closed container (20), which stiffness is enhanced by the spherical portions (27a) of the snubber stays (27). The thus reinformed closed container (20) is unlikely to vibrate in resonance with the vibration of the combined motor-and-compressor assembly (23). Thus, the hermetic motor-driven compressor is able to operate silently.

    7.
    发明专利
    未知

    公开(公告)号:DE69118160D1

    公开(公告)日:1996-04-25

    申请号:DE69118160

    申请日:1991-12-05

    Abstract: An enclosed motor-driven compressor includes a vertical crankshaft (25) rotatably supported by two ball bearings (26, 27) and having an eccentric portion (28) through which a motor element (21) and a compressor element (22) are operatively connected. The two ball bearings (26, 27) are disposed on opposite sides of the eccentric portion (28) so that a reaction force of a piston (35) which is exerted on the eccentric portion (28) is supported evenly by the ball bearings (26, 27). With the ball bearings (26, 27) thus arranged, the load on the crankshaft (25) is lowered and the efficiency of the motor element (21) is increased. A lubricating oil (33) held at the bottom of a container (20) is sucked through an internal groove of the crankshaft (25) and then supplied from outlets (37b, 37c) to the respective ball bearings (26, 27). The ball bearings (26, 27) thus lubricated have a prolonged service life. The compressor may have an oil sump disposed either above or below the ball bearing (26) for improving lubricating condition of the ball bearing (26).

    8.
    发明专利
    未知

    公开(公告)号:DE69316149T2

    公开(公告)日:1998-04-16

    申请号:DE69316149

    申请日:1993-10-21

    Abstract: A porous filter (53,54) having a pore size of no more than 80 mu m is provided in a refrigerant flow passage of a refrigeration system (50). The filter (53,54) may be provided in a drier (51) provided in the refrigerant flow passage or in a separate filter casing (52) provided in the refrigerant flow passage. Alternatively, the filter (53,54) may be provided in the refrigerant flow passage within a sealed casing (6) of a refrigerant compressor (1) which is incorporated in the refrigeration system (50).

    9.
    发明专利
    未知

    公开(公告)号:DE69316149D1

    公开(公告)日:1998-02-12

    申请号:DE69316149

    申请日:1993-10-21

    Abstract: A porous filter (53,54) having a pore size of no more than 80 mu m is provided in a refrigerant flow passage of a refrigeration system (50). The filter (53,54) may be provided in a drier (51) provided in the refrigerant flow passage or in a separate filter casing (52) provided in the refrigerant flow passage. Alternatively, the filter (53,54) may be provided in the refrigerant flow passage within a sealed casing (6) of a refrigerant compressor (1) which is incorporated in the refrigeration system (50).

    10.
    发明专利
    未知

    公开(公告)号:ES2100978T4

    公开(公告)日:1997-11-16

    申请号:ES92111359

    申请日:1992-07-03

    Abstract: A low noise, hermetic motor-driven compressor suitable for used in a refrigerator or an air-conditioner is disclosed in which a closed container (20) has a spherical wall portion (20a) on which a combined motor-and-compressor assembly (23) is supported via a suspension mechanism (24), and the suspension mechanism (24) includes two snubber stays (27) having spherical portions (27a) complementary in contour to the shape of the spherical wall portion (20a) of the closed container (20) and welded to the spherical wall portion (20a). The spherical wall portion (20a) increases the stiffness of the closed container (20), which stiffness is enhanced by the spherical portions (27a) of the snubber stays (27). The thus reinformed closed container (20) is unlikely to vibrate in resonance with the vibration of the combined motor-and-compressor assembly (23). Thus, the hermetic motor-driven compressor is able to operate silently.

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