公开(公告)号：JP2000297751A

公开(公告)日：2000-10-24

申请号：JP10792599

申请日：1999-04-15

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F04B35/04 ,  H02K7/14 ,  H02K33/04

Abstract: PROBLEM TO BE SOLVED: To reduce the sliding loss of a piston and cylinder and prevent a drop of reliability by wearing, in a vibration type compressor used for a refrigeration cycle. SOLUTION: This compressor is composed of an elastic element 7 whose one part is fixed to a movable element 9 and whose one part is fixed to a block 19, and a cylinder 18 and block 19 are assembled to the same member of the other fixed element 10. By assembling the cylinder 18 to the block 19, it is prevented that the cylinder 18, piston 4 and the shaft of an elastic element are assembled in a shifted and slanted state and the sliding loss of a slide part is reduced and the wearing is prevented.

公开(公告)号：JPH10141228A

公开(公告)日：1998-05-26

申请号：JP29612496

申请日：1996-11-08

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA

IPC: F04B39/02

Abstract: PROBLEM TO BE SOLVED: To surely supply oil to a sliding part of a piston pin and a connecting rod small end hole part simultaneously with start by arranging an oil sump around the piston pin on a lower inner surface in the vertical direction of a piston. SOLUTION: On the lower inner surface in the vertical direction of a piston 15, an oil sump 16 is arranged on the whole circumference or a part around a piston pin 12. When a hermetic compressor is stopped, oil which dropped down from a sliding part of the piston pin 12 and a small end hole part 11 of a connecting rod 9 is reserved in the oil sump 16, and oil reserved in the oil sump 16 can be supplied to the sliding part simultaneously with start. As a result, oiling delay at the time of start of a hermetic compressor is eliminated, lubricating failure is prevented in the sliding part of the piston pin 12 and the small end hole part 11 of the connecting rod 9, and a reliability is improved.

公开(公告)号：JPH09112428A

公开(公告)日：1997-05-02

申请号：JP27268695

申请日：1995-10-20

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA

IPC: F04B39/02

Abstract: PROBLEM TO BE SOLVED: To feed each sliding part between a piston pin and a connecting rod small end hole with oil, in time of starting a hermetic compressor. SOLUTION: This compressor is composed of a cylinder 1, a piston 2, a connecting rod 7 consisting of an arm part 24 connecting a small end part 22 having a small end hole 8 and a large end part 23 having a large end hole 9, a piston pin 18 being stored in this small end hole 8 free of sliding motion and clamped to the piston 2, an oil sump 25 installed at a slant toward each sliding part between the piston pin 18 and the small end hole 8 from the large end part upward in the gravitational direction of the arm part 24, a recess part 27 installed in the cylinder 1 and an interconnecting hole 26 being opened onto the oil sump 25 from this cylinder recess part 27.

公开(公告)号：JP2002122080A

公开(公告)日：2002-04-26

申请号：JP2000316172

申请日：2000-10-17

Applicant: MATSUSHITA REFRIGERATION

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

IPC: F04B49/10 ,  F04B35/04

Abstract: PROBLEM TO BE SOLVED: To provide a controller for a linear compressor, capable of operating the linear compressor at all times with high efficiency, even in changing a condition of the load of a cooling system. SOLUTION: This controller comprises a detection means 31 for detecting the temperature or pressure of the cooling system, a frequency determining means 32 for determining the power source frequency on the basis of a detection signal, and outputting a determination signal, and a frequency-changing means 33 for changing the power source frequency of a power source on the basis of the determination signal, and the power source frequency is made to coincide with the resonance frequency without affected by the change of the load condition of the cooling system to operate the linear compressor 1 with high frequency at all times.

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：JP2000087854A

公开(公告)日：2000-03-28

申请号：JP25354098

申请日：1998-09-08

Applicant: MATSUSHITA REFRIGERATION

Inventor： AKASHI HIRONARI ,  YOSHIMURA TAKAO ,  YAGI AKIO ,  HAYASHI AKIRA ,  SUGIMOTO SHUHEI

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To optimize pressure pulsation in a suction passage and attain increasing of refrigerating capacity and enhancing of efficiency, by using optimum suction passage specification in accordance with a rotational speed of a crankshaft and a kind of a refrigerant, relating to a closed type compressor. SOLUTION: A suction hole 16, muffler 23, and a suction passage 24 connecting a space in the muffler 23 to the suction hole 16, are provided, by constituting a compressor so as to satisfy a formula: 0.87

公开(公告)号：JPH09317644A

公开(公告)日：1997-12-09

申请号：JP13808596

申请日：1996-05-31

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA

IPC: F04B39/00 ,  F04B39/02

Abstract: PROBLEM TO BE SOLVED: To improve reliability by preventing abrasion on a sliding part of a small end hole part of a connecting rod and a piston pin of a closed type compressor. SOLUTION: High reliability is provided by preventing one side contact of a sliding part by forming a convex surface type spherical surface part 16a on either one of an inwall of a small end hole part 16 of a connecting rod 15 and an outer peripheral wall surface of a piston pin 12 and supplying a large amount of oil regardless of the size of a clearance.

公开(公告)号：JPH08270561A

公开(公告)日：1996-10-15

申请号：JP7748595

申请日：1995-04-03

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA ,  YOSHIMURA TAKAO ,  YAGI AKIO

IPC: F04B39/02

Abstract: PURPOSE: To stabilize efficiency and improve reliability by stabilizing an oiling amount which is supplied from the oil capillary of enclosed compressor. CONSTITUTION: This device is composed of a cylinder head 4 provided with an intake chamber 5, a suction pipe 13 communicated with the intake chamber 5, oil 14 collected in the bottom part of an enclosure vessel, and an oil capillary 18 whose one end is opened into an oil 14, the other end is opened into the suction pipe 13, which is formed of shape memory alloy in a part soaked in the oil 14, and which is provided with an expandable and contractible part 18a in a radial direction.

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.