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    11.
    发明专利
    未知

    公开(公告)号：DE60225447D1

    公开(公告)日：2008-04-17

    申请号：DE60225447

    申请日：2002-07-15

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： ISHIDA YOSHINORI ,  OTA TOSHIHIKO ,  IDE TERUMASA ,  KATAYAMA MAKOTO ,  HORIGUCHI TAKAFUMI ,  NAGAO TAKAHIDE

    IPC: F04B39/02 ,  F04B39/00

    Abstract: Compressor is provided with an oil pump comprising an inclined passageway formed in the lower portion of a main shaft and inclined outward from below to above, a choke having a suction hole in the center that is smaller in cross section than the inclined passageway formed in the lower end of the main shaft, and a lower communicating section establishing communication between the lower end of a spiral groove and the inclined passageway, whereby the lift for the lubricating oil can be effectively increased.

    13.
    发明专利
    未知

    公开(公告)号：BR0312074A

    公开(公告)日：2005-03-22

    申请号：BR0312074

    申请日：2003-06-26

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： AKASHI HIRONARI ,  KAWABATA HIROTAKA ,  KUBOTA AKIHIKO ,  NAGAO TAKAHIDE ,  KATAYAMA MAKOTO ,  TSUBOI KOSUKE ,  KAKIUCHI TAKASHI ,  KOJIMA TAKESHI

    IPC: F04B39/02

    Abstract: Relating to oil feed to a piston portion in a dual support bearing of a hermetic compressor, and a structure for improving efficiency and reliability and accomplishing reduction of noise is disclosed. In this structure, since an auxiliary bearing 119 is provided with an oil feed passage 129 for conducting lubricating oil 108 discharged from an upper end of an oil feed mechanism 114, to a sliding surface of a piston 120, the lubricating oil 108 is fed to the piston 120 and a piston pin 122 from the oil feed passage 129 to make the sealing performance excellent, so that the amount of leakage of refrigerant gas from a compression chamber 117 is reduced to improve the freezing capability or efficiency. Further, lubrication of sliding portions of the piston 120 and the piston pin 122 becomes excellent so that noise caused by sliding is reduced and the reliability is improved.

    15.
    发明专利
    未知

    公开(公告)号：ES2189098T3

    公开(公告)日：2003-07-01

    申请号：ES98308366

    申请日：1998-10-14

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORITA ICHIRO ,  KOBAYASHI MASANORI ,  INAGAKI KOH ,  KATAYAMA MAKOTO

    IPC: F04B35/04 ,  F04B39/00

    Abstract: A vibrating compressor which may be employed in refrigerators is provided which includes an elastic mechanism designed to produce reaction against movement of a piston through a moving mechanism such as an electric motor to oscillate the piston to change the volume of a compression chamber. The elastic mechanism consists of a plurality of discs connecting at the center with the piston. Each of the discs has slits curved in a scroll fashion to form spring arms. The discs are laid to overlap each other and shifted in angular position from each other so that the arms of one of the discs coincide with the slits of adjacent one of the discs, thereby avoiding direct contact of the arms of adjacent two of the discs.

    17.
    发明专利
    未知

    公开(公告)号：DE69834965D1

    公开(公告)日：2006-07-27

    申请号：DE69834965

    申请日：1998-10-14

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORITA ICHIRO ,  KOBAYASHI MASANORI ,  INAGAKI KOH ,  KATAYAMA MAKOTO

    IPC: F04B35/04 ,  F04B39/00 ,  F04B39/12 ,  F04B49/02 ,  F04B49/06 ,  F04B49/12 ,  H02K1/12 ,  H02K1/20 ,  H02K7/14 ,  H02K33/02 ,  H02K33/06 ,  H02K33/10 ,  H02K33/14 ,  H02K33/16

    Abstract: An oscillation-type compressor comprising: a block (302) and a piston (5); a motor (3) including a stator (3a) and a mover (3b); a movable element (12) including said motor (3b) and said piston (5); a stationary element (13) including said block (302) and said stator (3a); an elastic element (314) having a portion fixed to said movable element (12) and another portion fixed to said stationary element (13); a cylinder (4) accommodating said piston (5) so as to allow said piston (5) reciprocating in an axial direction; a displacement detector (319) connected to said piston (5) in the axial direction for detecting a position near a top dead center of said piston (5); top dead center position detecting means (320) for obtaining said top dead center position of said piston (5) based on a signal obtained from said displacement detector (319); current/voltage detecting means (321) for detecting a current or voltage value of said motor (3); and power supply means (322) for changing the voltage applied to said motor (3) based on output signals of said top dead center position detecting means (320) and said current/voltage detecting means (321).

    18.
    发明专利
    未知

    公开(公告)号：DE69830935T2

    公开(公告)日：2006-04-20

    申请号：DE69830935

    申请日：1998-10-14

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORITA ICHIRO ,  KOBAYASHI MASANORI ,  INAGAKI KOH ,  KATAYAMA MAKOTO

    IPC: F04B35/04 ,  F04B39/00 ,  F04B39/12 ,  F04B49/02 ,  F04B49/06 ,  F04B49/12 ,  H02K1/12 ,  H02K1/20 ,  H02K7/14 ,  H02K33/02 ,  H02K33/06 ,  H02K33/10 ,  H02K33/14 ,  H02K33/16

    Abstract: An oscillation-type compressor comprising: a block (302) and a piston (5); a motor (3) including a stator (3a) and a mover (3b); a movable element (12) including said motor (3b) and said piston (5); a stationary element (13) including said block (302) and said stator (3a); an elastic element (314) having a portion fixed to said movable element (12) and another portion fixed to said stationary element (13); a cylinder (4) accommodating said piston (5) so as to allow said piston (5) reciprocating in an axial direction; a displacement detector (319) connected to said piston (5) in the axial direction for detecting a position near a top dead center of said piston (5); top dead center position detecting means (320) for obtaining said top dead center position of said piston (5) based on a signal obtained from said displacement detector (319); current/voltage detecting means (321) for detecting a current or voltage value of said motor (3); and power supply means (322) for changing the voltage applied to said motor (3) based on output signals of said top dead center position detecting means (320) and said current/voltage detecting means (321).

    HERMETIC COMPRESSOR
    20.
    发明专利
    HERMETIC COMPRESSOR 未知

    公开(公告)号：AU2003238161A1

    公开(公告)日：2004-01-19

    申请号：AU2003238161

    申请日：2003-06-26

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： AKASHI HIRONARI ,  KAWABATA HIROTAKA ,  KUBOTA AKIHIKO ,  NAGAO TAKAHIDE ,  KATAYAMA MAKOTO ,  TSUBOI KOSUKE ,  KAKIUCHI TAKASHI ,  KOJIMA TAKESHI

    IPC: F04B39/02

    Abstract: Relating to oil feed to a piston portion in a dual support bearing of a hermetic compressor, and a structure for improving efficiency and reliability and accomplishing reduction of noise is disclosed. In this structure, since an auxiliary bearing 119 is provided with an oil feed passage 129 for conducting lubricating oil 108 discharged from an upper end of an oil feed mechanism 114, to a sliding surface of a piston 120, the lubricating oil 108 is fed to the piston 120 and a piston pin 122 from the oil feed passage 129 to make the sealing performance excellent, so that the amount of leakage of refrigerant gas from a compression chamber 117 is reduced to improve the freezing capability or efficiency. Further, lubrication of sliding portions of the piston 120 and the piston pin 122 becomes excellent so that noise caused by sliding is reduced and the reliability is improved.

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