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    2.
    发明专利
    未知

    公开(公告)号：DE68926823D1

    公开(公告)日：1996-08-14

    申请号：DE68926823

    申请日：1989-08-04

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： SASANO HIROSHI ,  KAWAI HIDEKI ,  OHTA TOSHIHIKO

    IPC: F04B39/00 ,  F04B39/12

    Abstract: A hermetic compressor with an improved operating efficiency for use in a cold storage, freezing chamber or the like, in which a suction pipe (23) is located with its one end (23e) in the vicinity of an inlet opening (22) of a suction muffler (17) so that heat of a closed casing (1) is not easily transmitted to the suction pipe (23) for less heating of the cooling medium gas drawn in, and thus, cooling efficiency is improved by preventing discharge of the low density cooling medium into the cooling system through compression of the expanded cooling medium gas.

    3.
    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

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MANGYO MASAO ,  KAWAI HIDEKI ,  WADA SATOSHI ,  OSAKA MASAHIKO

    IPC: F01M1/06 ,  F04B39/00 ,  F04B39/02

    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).

    4.
    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

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MANGYO MASAO ,  NAKAOKA SEISHI ,  YAKUSHI SHUICHI ,  ITO SHINYA ,  KAWASHIMA TAKAO ,  WADA SATOSHI ,  KAWAI HIDEKI

    IPC: F04B39/16 ,  F04C18/356 ,  F25B43/00

    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).

    5.
    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

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MANGYO MASAO ,  NAKAOKA SEISHI ,  YAKUSHI SHUICHI ,  ITO SHINYA ,  KAWASHIMA TAKAO ,  WADA SATOSHI ,  KAWAI HIDEKI

    IPC: F04B39/16 ,  F04C18/356 ,  F25B43/00

    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).

    7.
    发明专利
    未知

    公开(公告)号：ES2092210T3

    公开(公告)日：1996-11-16

    申请号：ES93119090

    申请日：1989-08-04

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： SASANO HIROSHI ,  KAWAI HIDEKI ,  OHTA TOSHIHIKO

    IPC: F04B39/00 ,  F04B39/12

    Abstract: A hermetic compressor with an improved operating efficiency for use in a cold storage, freezing chamber or the like, in which a suction pipe (23) is located with its one end (23e) in the vicinity of an inlet opening (22) of a suction muffler (17) so that heat of a closed casing (1) is not easily transmitted to the suction pipe (23) for less heating of the cooling medium gas drawn in, and thus, cooling efficiency is improved by preventing discharge of the low density cooling medium into the cooling system through compression of the expanded cooling medium gas.

    8.
    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

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MANGYO MASAO ,  KAWAI HIDEKI ,  WADA SATOSHI ,  OSAKA MASAHIKO

    IPC: F01M1/06 ,  F04B39/00 ,  F04B39/02

    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).

    10.
    发明专利
    未知

    公开(公告)号：DE68919845T2

    公开(公告)日：1995-07-13

    申请号：DE68919845

    申请日：1989-08-04

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： SASANO HIROSHI ,  KAWAI HIDEKI ,  OHTA TOSHIHIKO

    IPC: F04B39/00 ,  F04B39/12

    Abstract: A hermetic compressor with an improved operating efficiency for use in a cold storage, freezing chamber or the like, in which a suction pipe (23) is located with its one end (23e) in the vicinity of an inlet opening (22) of a suction muffler (17) so that heat of a closed casing (1) is not easily transmitted to the suction pipe (23) for less heating of the cooling medium gas drawn in, and thus, cooling efficiency is improved by preventing discharge of the low density cooling medium into the cooling system through compression of the expanded cooling medium gas.

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