公开(公告)号：JP2001082336A

公开(公告)日：2001-03-27

申请号：JP25860099

申请日：1999-09-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： KITA ICHIRO ,  YOSHIMURA TAKAO ,  UMEOKA IKUTOMO ,  KAWABATA JUNTA ,  YAGI AKIO ,  SUGIMOTO SHUHEI ,  KANESHIRO KENJI

IPC: F04B39/00 ,  F04B39/14

Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of dislocation during assembly of a division rod, to facilitate assembly without a difficult work, such as matching the planes of a groove and a tip with each other, and to decide the geometric position of a connection part between the hole of a large end part and the piston of a small end part, in a reciprocating compressor used in a household refrigerator. SOLUTION: A large end part 76 is provided with a spherical dent 95 and a guide groove 96 formed in a large end hole 77 and a protrusion part 80. Since, at a small end part, one end of a rod part 81 has a connection part 73 with a piston 10 and the other end has a spherical part 97, simultaneously with insertion of the large end hole 77 into the eccentric part 11 of a crank shaft 7, the spherical dent 95 is simply inserted in the spherical body part 97 without a work like a plane matching work, and a situation that the large end part 76 drops downward and is horizontally dislocated is prevented from occurring, whereby an assembly work is extremely easy to make and a geometric position is also reliably decided.

公开(公告)号：JPH10131882A

公开(公告)日：1998-05-19

申请号：JP28637296

申请日：1996-10-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA ,  KAWASHIMA TAKAO

IPC: F04C29/00 ,  F04C18/356

Abstract: PROBLEM TO BE SOLVED: To improve wear resistance and seizure resistance by constituting one side of a slide material in a compression mechanism by a cost iron and iron system sintered material and its other side by a compound material of a titanium minute powder, chromium powder and nickel powder with a specific range rate. SOLUTION: A compression mechanism, refrigerant and refrigerator oil are internally equipped in a sealed up vessel and one side of a slide material in the compression mechanism is constituted by a cast iron and iron system sintered material. The other side is constituted by the compound material of 83-89wt.% of titanium minute powder, 3-5wt.% of chromium powder and 8-12wt.% of nickel powder. Thereby, in addition to the selection of a proper lubrication oil to increase the reliability of a rotary compressor, a slide material excellent in wear resistance can be achieved to supplement the lubrication oil of a refrigerant itself.

公开(公告)号：JPH07293474A

公开(公告)日：1995-11-07

申请号：JP8667694

申请日：1994-04-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： HORIGUCHI TAKAFUMI ,  KAWABATA JUNTA ,  YAGI AKIO

IPC: F04C29/02 ,  F04C18/356

Abstract: PURPOSE:To prevent deterioration of efficiency caused by abrasion between a vane and a roller, and also to provide a compressor having high reliability. CONSTITUTION:A compressor is constituted of lubricating oil 18, a cylinder 4, a roller 5 to be eccentrically rotated in the cylinder 4, a vane 6 for dividing the inside of the cylinder 4 into an inlet chamber 11a and a compression chamber 11b by vertically reciprocating in a groove of the cylinder 4, and being brought in slide-contact with the roller 5, an inlet chamber side lubricating oil chamber 19 provided with an opening part on the non-sliding part upper side to the roller on the tip of the vane 6, and a compression chamber side lubricating oil camber 20. Thereby, if lubricating oil is little on the vane tip in starting of the compressor, sufficient lubricating oil can be always supplied to the sliding parts of the vane and the roller.

公开(公告)号：JPH05288179A

公开(公告)日：1993-11-02

申请号：JP8355992

申请日：1992-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： AWASHIMA HIROKI ,  KAWAI HIDEKI ,  KAWABATA JUNTA

IPC: F04C18/356 ,  F04C29/00

Abstract: PURPOSE:To provide a refrigerant conveyor device for circulating refrigerant forcibly in the heat conveyance cycle of air-conditioning equipment or the like without using oil as lubricant. CONSTITUTION:An oilless refrigerant conveyor device is formed of a displacement type compression machine part 1, a shaft 5 forming the displacement type compression machine part 1, and bearing bushes 14, 15 formed of phenol resin carbon fiber compound material and fitted to the inner diameter part of a bearing 8 for supporting the shaft 5 so as to come in sliding contact with the shaft 5.

公开(公告)号：JPH05157083A

公开(公告)日：1993-06-22

申请号：JP31893691

申请日：1991-12-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： AWASHIMA HIROKI ,  KAWAI HIDEKI ,  KAWABATA JUNTA

IPC: F04C18/356 ,  F04C29/00

Abstract: PURPOSE:To provide a refrigerant carrier device without using an oil serving as a lubricant in the case of a refrigerant carrier device for forcibly circulating a refrigerant in a heat carrier cycle of an air conditioner, for example. CONSTITUTION:An oilless refrigerant carrier device comprises a volume type compressor machine part 1, a shaft 5 that forms the volume type compressor machine part 1, a bearing 8 for supporting the shaft 5, and a bearing bush 14 made of carbon ceramic complex material, which is mounted on the inner diametral part of the bearing 8, and which is slid on and thus connected to the shaft 5.

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：JPH11303738A

公开(公告)日：1999-11-02

申请号：JP11047098

申请日：1998-04-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA ,  KAWASHIMA TAKAO ,  YOSHIMURA TAKAO

IPC: F04B39/00 ,  F04B39/02 ,  F16J1/02

Abstract: PROBLEM TO BE SOLVED: To improve the peeling resistance of a film when HFC-134 is used as a coolant and to reduce a noise by forming the phosphoric acid manganese chemical conversion film arranged with grains having different grain sizes in turn on the surface of the ferrous sliding components of a compressor used for an air conditioner. SOLUTION: When a shaft 4 pressed into a rotor 2 is rotated by a motor constituted of a rotor 2 and a stator 3, a piston 8 is reciprocated in a cylinder 12 via a connecting rod 5 fitted to the eccentric section of the shaft 4, and coolant gas is continuously sucked and compressed. The piston 8 made of a ferrous material having a phosphoric acid manganese chemical conversion film as a base material 15 is employed in this rotary compressor, and grains 13 with a small grain size and grains 14 with a large grain size are arranged in turn on the surface of the base material 15. The quantity of oil capable of being held on the phosphoric acid manganese chemical conversion film is increased as compared with the case that grains with a single grain size are arranged.

公开(公告)号：JPH06346879A

公开(公告)日：1994-12-20

申请号：JP14051693

申请日：1993-06-11

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA

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 and lubricating failure by feeding sufficient lubricating oil into a cylinder at the operation starting time and during the operation, and preventing the intake of liquid refrigerant into the cylinder in the rotary compressor used for a refrigerating cycle or the like. CONSTITUTION:A rotary compressor is provided with an intake pipe 19 of double pipe structure having an inner pipe 19a and an outer pipe 19b inserted in a closed casing 1; an oil tank 20 with one end thereof inserted into the intake pipe 19 and with the other end inserted into a cylinder 4; an evaporating tank inserted into the intake pipe 19 and brought into close contact with the closed casing 1; and a wave preventing plate 22 fixed to the cylinder 4.

公开(公告)号：JP2001200788A

公开(公告)日：2001-07-27

申请号：JP2000008913

申请日：2000-01-18

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F04B35/04 ,  H02K7/14

Abstract: PROBLEM TO BE SOLVED: To prevent such reliability reduction that a compressor is stopped by abrasion power of a sliding part biting into the sliding part, in a vibration type compressor used for a refrigerating cycle. SOLUTION: This device is provided with a communicating pipe 14, whose one end is opened to a compression chamber 9, and the other end is opened to the high pressure side of a system, and an opening/closing valve 15 attached to the opening part of the compression chamber 9 side of the communicating pipe 15, refrigerant gas of the high pressure side of the system rapidly and directly flows into the compression chamber 9 when an operation of the compressor is stopped, thereby, even if abrasion powder is produced on the sliding part, the abrasion powder stuck on the sliding part is discharged. Thus the abrasion powder can be prevented from sticking on the sliding part, and reliability reduction which results in the compressor stoppage can be prevented.

公开(公告)号：JP2000291545A

公开(公告)日：2000-10-17

申请号：JP9858399

申请日：1999-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA JUNTA

IPC: F04B39/00 ,  F04B35/04 ,  F04B53/00

Abstract: PROBLEM TO BE SOLVED: To prevent corrosion without exposing aluminum alloy to refrigerant directly, and suppress generation of sludge and the like by uniformly dispersing aluminum nitride on a surface of a sliding parts of a sintered alloy comprising aluminum powder as a main component. SOLUTION: A vibration type compressor is composed of a motor 3, cylinder 5, bearing 6, piston 13, resonance spring 11, and cylinder head 10, refrigerant gas led from a suction hole in the piston 13 into a compression chamber is compressed by the reciprocating motion of the piston 13. In this case, the piston 13 is made of an sintered alloy comprising aluminum powder as a main component, and particles of aluminum nitride are dispersed uniformly on the surface of a sliding part of the piston 13. In a condition, in which feeding of oil is few at start of initial phase in the particles of the aluminum nitride which is uniformly dispersed on the sliding surface, since its hardness is at a high level and its abrasion resistance property is improved reduce an abrasion quantity can be reduced.