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).

公开(公告)号：DE69124980T2

公开(公告)日：1997-08-28

申请号：DE69124980

申请日：1991-09-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWAI HIDEKI ,  WADA SATOSHI ,  OSAKA MASAHIKO

IPC: F04B9/04 ,  F04B39/00

公开(公告)号：DE69124980D1

公开(公告)日：1997-04-10

申请号：DE69124980

申请日：1991-09-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWAI HIDEKI ,  WADA SATOSHI ,  OSAKA MASAHIKO

IPC: F04B9/04 ,  F04B39/00

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).

公开(公告)号：DE4310944C2

公开(公告)日：1998-02-19

申请号：DE4310944

申请日：1993-04-02

Applicant: MATSUSHITA REFRIGERATION

Inventor： OSAKA MASAHIKO ,  KAWAI HIDEKI ,  SAIKI YUJI ,  WADA SATOSHI

IPC: F04B39/00 ,  F04B39/12 ,  F25B31/02

Abstract: A hermetic compressor comprising a compressing mechanism and a housing for encasing the compressing mechanism, the housing comprising upper and lower portions which are coupled to each other and being formed to have curved surfaces. The housing is constructed such that one curved line on the housing is arranged to be different from other curved lines existing at positions symmetrical with a position of the one curved line with respect to planes X, Y and Z perpendicular to one another and passing the housing, the plane X including a boundary portion between the upper and lower portions of the housing and being perpendicular to a center line passing through a center of an upper surface of the upper portion and a center of a bottom surface of the lower portion, and the planes Y and Z being perpendicular to each other and perpendicular to the plane X and including the center line.

公开(公告)号：DE4310944A1

公开(公告)日：1993-10-07

申请号：DE4310944

申请日：1993-04-02

Applicant: MATSUSHITA REFRIGERATION

Inventor： OSAKA MASAHIKO ,  KAWAI HIDEKI ,  SAIKI YUJI ,  WADA SATOSHI

IPC: F04B39/00 ,  F04B39/12

Abstract: A hermetic compressor comprising a compressing mechanism and a housing for encasing the compressing mechanism, the housing comprising upper and lower portions which are coupled to each other and being formed to have curved surfaces. The housing is constructed such that one curved line on the housing is arranged to be different from other curved lines existing at positions symmetrical with a position of the one curved line with respect to planes X, Y and Z perpendicular to one another and passing the housing, the plane X including a boundary portion between the upper and lower portions of the housing and being perpendicular to a center line passing through a center of an upper surface of the upper portion and a center of a bottom surface of the lower portion, and the planes Y and Z being perpendicular to each other and perpendicular to the plane X and including the center line.

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).

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).

公开(公告)号：JPH07208334A

公开(公告)日：1995-08-08

申请号：JP566594

申请日：1994-01-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  WADA SATOSHI

IPC: F04B39/00 ,  F04B39/06 ,  F04B39/12

Abstract: PURPOSE:To provide an enclosed type compressor having high reliability, wherein energy efficiency (EER) is high, having an energy-saving type, having low noise, having soft living environment, and having large construction strength. CONSTITUTION:An enclosed type compressor is provided with a connecting pipe 40 which is constituted integratedly with an intake muffler 39, and a heat shield tube 41 whose one end is connected to the connecting pipe 40, the other end is opposed adjacent to the intake hole 31 of a valve plate 35. The intake chamber 36 of a cylinder head 38 is formed so as to enclose the circumference of the outlet hole 43 of a heat shield tube 41, and the inner capacity of the intake chamber 36 is increased more than the inner capacity of the heat shield tube 41. Structure strength is large since the heat shield tube 41 is inserted in the cylinder head 38.

公开(公告)号：JPH06235570A

公开(公告)日：1994-08-23

申请号：JP2233393

申请日：1993-02-10

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F25B43/00

Abstract: PURPOSE:To prevent a capillary tube from clogging due to the growth of contaminants by a method wherein a dryer with water-absorbent, which is enclosed in a cafe and held between two filters, is mounted on a refrigerant path between a condenser and an expansion device and a third filter is arranged in a case located apart from the filters. CONSTITUTION:A dryer is provided with a water-absorbent, e.g. a molecular sieve 13, enclosed in a metallic case 12 and first and second filters 14a and 14b which hold the molecular sieve 13 from both sides to fix it and mounted on a refrigerant path between a condenser 2 and an expansion device 4. A third filter 15 is held in a cup-shaped holder 16 which is put in the case 12 and fixed at a position a short distance away from the first and second filters 14a and 14b so that the third filter 15 is prevented from coming in contact with the first and second filters 14a and 14b and the molecular sieve 13. Thereby, contaminants to be deposited on a compressor, the condenser 2, an evaporator and a capillary tube as the expansion device 4 as well are filtered out.