公开(公告)号：JP2001020863A

公开(公告)日：2001-01-23

申请号：JP19552599

申请日：1999-07-09

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  MATSUSHITA REFRIGERATION

Inventor： MATSUNAMI TAKAO ,  ASADA TAKAFUMI ,  HAMADA TSUTOMU ,  YOSHIMURA TAKAO ,  MORITA ICHIRO ,  KOBAYASHI MASANORI

IPC: F04B39/02 ,  F04B35/04 ,  F04B39/00

Abstract: PROBLEM TO BE SOLVED: To provide a reciprocating type compressor to prevent the occurrence of local slide and gouging to a slide part between a cylinder and a piston and perform stable and smooth rectilinear advance of a piston. SOLUTION: A compression chamber 10 is formed between the top face 5b of a piston 5 and a cylinder 4 and the piston 5 is coupled to the rotor of a linear motor to make reciprocating rectilinear advance. In a so formed reciprocating type compressor, a groove 11a intermittently or continuously extending in a peripheral direction is formed in the side peripheral surface 5a of the piston 5 and a number of communicating grooves 11b to perform intercommunication between the groove 11a and the top face 5b of the piston 5 are formed in the side peripheral surface 5a.

公开(公告)号：JP2000297750A

公开(公告)日：2000-10-24

申请号：JP10792999

申请日：1999-04-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA ,  MORITA ICHIRO ,  KOBAYASHI MASANORI ,  INAGAKI KO ,  KATAYAMA MAKOTO

IPC: F04B35/04

Abstract: PROBLEM TO BE SOLVED: To prevent the local slide and prize generated at the slide parts of a piston and cylinder and improve the efficiency and reliability of a compressor, on a vibration type compressor. SOLUTION: In a spherical piston 14 forming one part of a movable element 13 and also reciprocating in a cylinder, by constituting so as to have at least a spherical surface on a slide surface, the generation of a local slide and prize in the slide part of the sperical piston 14 and cylinder 4 is prevented and the drop of a reliability such as the efficiency drop of a compressor and the wear of the slide part by the increase of a slide loss can be prevented.

公开(公告)号：JPH11117860A

公开(公告)日：1999-04-27

申请号：JP28173297

申请日：1997-10-15

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F04B35/04

Abstract: PROBLEM TO BE SOLVED: To provide a vibration type compressor for coolant cycle, in which adjacent arms are prevented from making contact with each other without adding a member for holding a gap between flat plates composed of resilient members stacked one upon another, in order to prevent abrasion and slide loss caused by slide motion between the arms, and to prevent the refrigerating capacity from being lowered caused by an increase in the weight of a movable element. SOLUTION: Flat plates 19 each having a slit 20a and an arm 21a which is narrower than the slit 20a, and formed of a resilient member, are stacked one upon another so that the arms 21a and the slits 20a are alternately faced with one another. With this arrangement, it is possible to prevent abrasion and slide loss which are caused by sliding between the arms 21a, without adding a member for holding a gap between the flat plates 19, and to prevent the refrigerating capacity from being lowered caused by an increase in the weight of a movable element.

公开(公告)号：JPH09112427A

公开(公告)日：1997-05-02

申请号：JP27268895

申请日：1995-10-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI

IPC: F04B39/02

Abstract: PROBLEM TO BE SOLVED: To enhance reliability by prevent any wear due to a lubricating failure in the sliding part of a thrust bearing in time of compressor starting, in this hermetic compressor. SOLUTION: Since this compressor is provided with a tilting cylinder 35, a centrifugal piston 36 reciprocably stored in this cylinder 35, a movable pipe 37 reciprocably stored in an oil feed passage 29, and a connecting mechanism 38 connecting the centrifugal piston 36 and the movable pipe 37 together, an amount of oiling into a thrust sliding part is increased and any lubricating failure is prevented from occurring in a transient state until a crankshaft is stabilized by constant rotation in time of compressor starting, and thus this enclosed compressor being less in wear and high in reliability is securable.

公开(公告)号：JPH06346880A

公开(公告)日：1994-12-20

申请号：JP14051393

申请日：1993-06-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI

IPC: F04C18/356 ,  F04C29/00 ,  F04C29/02 ,  F04C29/12

Abstract: PURPOSE:To provide a rotary compressor of high reliability preventing the lowering of efficiency caused by oil feeding failure by always feeding sufficient lubricating oil to a sliding part between a cylinder and a vane even with the decrease of lubricating oil quantity in the rotary compressor used for a refrigerating cycle or the like. CONSTITUTION:A rotary compressor is provided with oil feeding mechanism with one end communicated with an auxiliary bearing oil feeding part and with the other end opened into lubricating oil; an intake chamber side lubricating oil chamber 19 provided at an intake chamber side sliding part 20 between a cylinder 4 and a vane; a compression chamber side lubricating oil chamber 21 provided at a compression chamber side sliding part 22; and oil feeding paths 23a, 23b with one ends thereof opened to the auxiliary bearing oil feeding part and with the other ends communicated with the intake chamber side lubricating oil chamber 19 and the compression chamber side lubricating oil chamber 21.

公开(公告)号：JP2002235662A

公开(公告)日：2002-08-23

申请号：JP2001031951

申请日：2001-02-08

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI ,  MORITA ICHIRO ,  INAGAKI KO ,  KATAYAMA MAKOTO ,  HAYASHI AKIRA

IPC: F04B35/04

Abstract: PROBLEM TO BE SOLVED: To prevent occurrence of fatigue failure and to improve reliability by reducing stress generated near a fixed end of an arm of an elastic body in a vibration type compressor used for a refrigeration cycle, etc. SOLUTION: A part of the elastic body 8 is fixed to a fixed element 12 and a part of the elastic body 8 is fixed to a movable element 9 through fixing member 20a, 20b, 20c and 20d having curved surfaces 21a, 21b, 21c and 21d. The fixed end is deformed along the curved surface of the fixing members at deformation of the arm, and partial stress concentration can be avoided. Thus, the occurrence of the fatigue failure can be prevented and the reliable vibration type compressor can be achieved.

公开(公告)号：JP2001200787A

公开(公告)日：2001-07-27

申请号：JP2000008911

申请日：2000-01-18

Applicant: MATSUSHITA REFRIGERATION

Inventor： MORITA ICHIRO ,  KOBAYASHI MASANORI ,  KAWABATA JUNTA ,  INAGAKI KO ,  ISHIDA TAKANORI ,  KATAYAMA MAKOTO ,  HAYASHI AKIRA

IPC: F04B39/00 ,  F04B35/04

Abstract: PROBLEM TO BE SOLVED: To reduce a use amount of a refrigerant as well as preventing reduction of a system efficiency caused by a lubricating oil, in a vibration type compressor used for a refrigerating cycle and the like. SOLUTION: In the vibration type compressor for compressing and delivering a refrigerant by a compression mechanism part, lubricating oil is not used, combustible and natural refrigerants such as propane, isobutane, and carbon dioxide are used as the refrigerant, a gas bearing mechanism or a connecting mechanism having low bending rigidity are provided, and thereby the system efficiency is improved, the use amount of the refrigerant is reduced, and sliding loss is also reduced.

公开(公告)号：JPH11117863A

公开(公告)日：1999-04-27

申请号：JP28173497

申请日：1997-10-15

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F04B39/00 ,  F04B35/04 ,  F04B49/00

Abstract: PROBLEM TO BE SOLVED: To provide an oscillating type compressor used in a refrigerating system or the like, which can prevent the insufficiency of cooling capacity in a high temperature atmosphere. SOLUTION: As oscillating compressor is composed of a cylinder 22 in which a piston is inserted so as to be axially reciprocatable, and which is inserted in a back 20 so as to be axially reciprocatable and to define a space 23 between itself and the block 20, and a communication passage 24 which is opened between the space 23 and a discharge chamber 7b in a cylinder head 7. With this arrangement, in a condition in which the atmospheric temperature is high so as to require a high cooling capacity, the cylinder 22 is moved toward the top dead center by a high pressure introduced in the space 23 so that the stroke of the piston 5 becomes larger, thereby making it possible to enhance the cooling capacity.

公开(公告)号：JPH102282A

公开(公告)日：1998-01-06

申请号：JP15397896

申请日：1996-06-14

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI

IPC: F04B39/02

Abstract: PROBLEM TO BE SOLVED: To improve reliability by performing centrifugal oil supply of a rotating supply oil pipe, sufficient splash oil supply and cooling of a slide part, even when a lubricating oil level is lowered in a closed compressor. SOLUTION: By providing a cover 25 and a pressure regulating valve 27, when a piston 7 makes a reciprocating motion in a closed space 26 in the cover 25, by the pressure regulating valve 27, a pressure in the cover can be held lower than a pressure outside the cover 25, a level of lubricating oil 24 in the cover 25 can be heightened. Accordingly, centrifugal oil supply of a supply oil pipe, splash oil supply and cooling of a slide part can be always performed, wearing due to improper lubrication of the slide part is prevented, a high reliable closed compressor can be obtained.

公开(公告)号：JPH07294027A

公开(公告)日：1995-11-10

申请号：JP8827794

申请日：1994-04-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： KOBAYASHI MASANORI ,  YOSHIMURA TAKAO

IPC: F25B1/00 ,  F25B47/02

Abstract: PURPOSE:To provide a refrigerator having high reliability by preventing the operation of a compressor under vacuum due to the operation delay of a fluid control valve and preventing power loss and the temperature rise of a slide unit. CONSTITUTION:The refrigerator comprises a refrigerant circuit having a compressor 1, a condenser 2, a capillary 3, an evaporator 4 and a fluid control valve 9, a communicating passage of the 10 opened at its one end with the high-pressure part of the compressor 1 and communicated at the other end between the evaporator 4 and the valve 9, a suction side valve 12 provided in the passage 10, open command input means 13 for detecting the start of the compressor l and simultaneously outputting an open command to the valve 12, and closure delay input means 14 for outputting a closure command to the valve 12 after a predetermined time of a time command to be output simultaneously upon the open command of the means 13.