公开(公告)号：AU2002238861A1

公开(公告)日：2003-09-22

申请号：AU2002238861

申请日：2002-03-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： HIRAI CHIE ,  TAKAICHI KENJI ,  TANIMOTO YASUAKI

IPC: A47B96/04 ,  F25D11/00 ,  F25D23/06

Abstract: A heat insulating box of a refrigerator includes a inflammable heat-insulator particularly a vacuum heat-insulator made of a board-shape molded inorganic fiber. Therewith inflammability of the heat insulator is ensured and a refrigerator box prevented from catching an outside caused fire is achieved, thus a refrigerator which is safe even when a flammable refrigerant is used and which is high in energy-saving is provided.

公开(公告)号：EP1094100A4

公开(公告)日：2002-10-16

申请号：EP00915341

申请日：2000-04-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： KURACHI MASAO ,  NAKAGAWA NOBUHIRO ,  TAKAICHI KENJI ,  SAKAI HISAKAZU ,  NOZUE AKIHIRO

IPC: C09K5/04 ,  F25B9/00 ,  F25B31/00 ,  F25B43/00 ,  C10M103/00 ,  C10M105/02 ,  F25B1/00

CPC classification number: F25B9/006 ,  C09K5/042 ,  C09K2205/132 ,  F25B31/002 ,  F25B43/003 ,  F25B2400/12 ,  F25B2500/222

Abstract: In a refrigerant compression type refrigerating system for use in the field of refrigerating/air conditioning employing a hydrocarbon refrigerant containing an odorant, the concentration of the odorant at the time of refrigerant leakage is kept on a sensible level. The refrigerant composition contains at least one ingredient selected among ethane, propane, cyclopropane, propylene, and isobutane. It contains ammonia in an amount of 1 to 60 wt. %, preferably 1 to 20 wt. %, as an odorant.

公开(公告)号：EP1484563A4

公开(公告)日：2005-12-07

申请号：EP02705108

申请日：2002-03-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： HIRAI CHIE ,  TAKAICHI KENJI ,  TANIMOTO YASUAKI

IPC: A47B96/04 ,  F25D11/00 ,  F25D23/06

CPC classification number: F25D23/062 ,  F25D2201/12 ,  F25D2201/126 ,  F25D2201/14 ,  F25D2400/04

Abstract: A refrigerator in which a flammable refrigerant can be employed in safety while exhibiting high energy saving performance. The refrigerator is realized by employing a flame retardant thermal insulation material, especially a vacuum thermal insulator of a board type inorganic fiber molding, in the thermal insulation box of the refrigerator thereby making the thermal insulation material flame retardant when external fire spreads to the refrigerator box.

Abstract translation: 一种可以安全使用可燃性致冷剂，同时表现出高节能性能的冰箱。 该冰箱是通过在冰箱的保温箱中采用阻燃保温材料，特别是板式无机纤维成型的真空保温材料，使外部火势传播到冰箱时使保温材料阻燃 。

公开(公告)号：JP2002277144A

公开(公告)日：2002-09-25

申请号：JP2001073754

申请日：2001-03-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKAICHI KENJI

IPC: F25D11/00 ,  F25D21/08 ,  F25D29/00

Abstract: PROBLEM TO BE SOLVED: To avoid a danger even when holes are opened due to the breakage or corrosion of piping upon defrosting in a refrigerating cycle using a combustible refrigerant. SOLUTION: Only during defrosting, components having a high boiling point such as hydrocarbon, ether or ketone, etc., are added from a storage device 38 to the ordinary combustible refrigerant to lower the pressure of the refrigerant piping 32. A pressure detecting means 34 or a temperature detecting means controls the pressure of the piping 32 in the refrigerating cycle not to be atmospheric pressure or higher. Thus, even when a failure is generated in the piping 32, the combustible refrigerant does not leak. Further, during an ordinary cooling operation, the operation is carried out by the ordinary combustible refrigerant, so that the refrigerant is suitably compressed without excessively lowering the pressure of the refrigerating cycle.

公开(公告)号：JPH109736A

公开(公告)日：1998-01-16

申请号：JP15786696

申请日：1996-06-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKAICHI KENJI

IPC: F25D11/00 ,  F25B49/02

Abstract: PROBLEM TO BE SOLVED: To reduce an amount of leakage of hydrocarbon refrigerant and reduce a possibility of ignition of the hydrocarbon refrigerant when leakage of hydrocarbon inside of a refrigerator occurs due to damage of piping and the like. SOLUTION: This refrigerator comprises a heat-insulated box 2 having a compressor 9, a discharging pipe 10, a condenser 11, a capillary tube 12, an evaporator 8 and a suction pipe 13 connected in sequence in an annular manner and also having a cooling cycle containing in a sealed state, hydrocarbon refrigerant 14 of a pressure characteristic evaporating at a pressure lower than the atmospheric pressure in the evaporator 8 side; a non-returned type pressure switch 28 enclosed with working gas 29 having a higher pressure characteristic than the hydrocarbon refrigerant 14 and operated in response to a pressure difference between the hydrocarbon refrigerant 14 and working gas 29; and solenoid opening and closing valves 30, 31 controlled by a pressure 28 for a pressure in a suction pipe 13, an outside part of the refrigerator at a position where the heat-insulated box 2 is in contact with a discharging pipe 10 and an outside part of the refrigerator where the heat-insulated box 2 is in contact with the suction pipe 13. When the compressor 9 is stopped in its operation, even if hydrocarbon refrigerant 14 leaks from the evaporator to an inner side of the refrigerator, the solenoid opening and closing valves 30, 31 are closed to make an amount of leakage minimum.

公开(公告)号：JPH07180660A

公开(公告)日：1995-07-18

申请号：JP32850893

申请日：1993-12-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： TADA KOJI ,  TAKAICHI KENJI ,  SAKAI TOSHIKAZU ,  ISHIDA TAKANORI

IPC: F04B39/00

Abstract: PURPOSE:To optimize sliding material in a compressor using refrigerant HFC-134a so as to heighten durability by forming a connecting rod of an aluminium alloy casting, and casting a metal foam body, made of a nickel chrome alloy with specific porosity, in a bearing part for a piston. CONSTITUTION:In a compressor using refrigerant 1, 1, 1, 2-tetrafluoroethane (HFC-134a), not including chlorine in a molecule, as compressed gas for a problem such as the destruction of an ozone layer, the other end of a connecting rod 5 with one end thereof rotatably supported to the shaft 2 of a motor is supported by a piston pin 8 as a bearing, and a piston 7 fixed to the piston pin 8 is fittingly mounted into a cylinder 6. In this case, the connecting rod 5 is formed of a aluminium alloy casting, and a metal foam body made of a nickel chrome alloy of 80-98% in porosity is cast in a bearing part for the piston pin 8. The hardness of a connecting rod bearing part is thereby improved, and the quantity of friction in the contact parts of the connecting rod 5 and piston pin 8 is reduced.

公开(公告)号：JPH07145787A

公开(公告)日：1995-06-06

申请号：JP29516093

申请日：1993-11-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： SAKAI TOSHIKAZU ,  TAKAICHI KENJI ,  TADA KOJI ,  ISHIDA TAKANORI

IPC: F04C18/356

Abstract: PURPOSE:To improve the durability of a compressor by strengthening a vane tip portion by means of a complex hardening film consisting of a ceramic coating layer and a nitrification treatment layer underneath it, bringing this into slide contact with the outer periphery of a roller formed of high alloy steel or the like, and preventing the wear of both. CONSTITUTION:A compressor 1 compresses the gas in a cylinder 4 by rotating a roller 6 fitted to the eccentric portion of a shaft 2 to be subjected to motor rotation while the roller 6 is coming into contact with the inner periphery of a cylinder 4 and the tip of a vane 7. In this case, the roller 6 is formed of alloy steel whose surface hardness shows the value of HV800-2000 and which contains vanadium, chrome, molybdenum and tungsten, or carbon steel or the like on whose surface a nickel phosphorus compound plating layer containing carbonized silicon corpuscles is formed. Meanwhile, the vane 7 is made of a sintered material of an iron system or alloy steel containing chrome, and nitrification treatment is administered at the tip portion, and a chemical compound layer of iron, chrome and nitrogen is formed, and then formation is carried out by administering the ceramic coating of nitrified chrome on the tip portion surface alone.

公开(公告)号：JPH0610866A

公开(公告)日：1994-01-21

申请号：JP16712992

申请日：1992-06-25

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMA HIROTO ,  TAKAICHI KENJI

IPC: F04C29/12 ,  F04C29/00

Abstract: PURPOSE:To provide a closed compressor wherein essential insulation of a device can be accurately grasped by preventing decrease of electric insulation due to a refrigerant, just after sealed, generated in the case of using a hydrogen- contained refrigerant of 1, 1, 2 tetrafluoroethane or the like and using ester oil and glycol oil as the lubricating oil, relating to the compressor used for a refrigerating cold storage device, air conditioner, etc. CONSTITUTION:In a constitution, a machine part housed in a closed casing 2, motor part 12 for driving the machine part, and a part between the first/ second punch metals 17, 18 provided in the intermediate part of a charge pipe 16 almost horizontally inserted into the closed casing 2 sealed with a refrigerant and refrigerator oil to provide a notch 19 and to also drill a small hole 20 are filled with metal fiber and oxygen scavenger.

公开(公告)号：JPH04350386A

公开(公告)日：1992-12-04

申请号：JP12433291

申请日：1991-05-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKAMA HIROTO ,  TAKAICHI KENJI

IPC: F04C29/02

Abstract: PURPOSE:To reduce the abrasion of sliding material and prevent the pipeline clogging of a refrigerating system caused by harmful material in a refrigerator, a freezing store, a car air-conditioner, or the like by using the mixed oil of naphthene group refrigerator oil and ester group refrigerator oil as refrigerator oil for a compressor at the time of using refrigerant HFC-134a so as to feed the naphthene group refrigerator oil positively to the compressor. CONSTITUTION:This closed type compressor is formed of a machine part 1 enclosed in a closed casing 13, a motor 15 for driving the machine part 1, an oil feeding device for conveying refrigerator oil to the machine part 1, a heater 15 closely attached to the closed casing 13, and a current application control device 16 for the heater 15.

公开(公告)号：JPH02213629A

公开(公告)日：1990-08-24

申请号：JP3305889

申请日：1989-02-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： TAKAICHI KENJI ,  FUJIMOTO RYUZO

IPC: F24F6/04

Abstract: PURPOSE:To improve the assembling efficiency and to increase a humidifying amount by a method wherein a plurality of plates being an element formed of a water absorptive material are installed in an air duct, one end of the plate being an element is immersed in a feed water tank, and protrusions are formed on the plane, through which air permeated, of the element. CONSTITUTION:A plurality of elements 2 formed of an water absorptive material, e.g. hydrophilic plastic, are arranged in an air duct, the one end of the element 2 is immersed in a feed water tank 4, and protrusion parts 2a are formed on the plane, through which air is permeated, of the element 2. Water stored in the feed water storage tank 4 passes through a gap provided by means of support parts 4a and flows through a through-part 3b and is fed to the elements 2. During heating operation, air sucked in a body 51 is heated by means of a heat exchanger 55 to produce an air flow the relative temperature of which is reduced. Meanwhile, water is stored in a water storage tank 58a, and the end part of a humidifier 1 is connected to the water. The humidifier 1 is brought into a water-absorbed state, and an air flow the relative humidity of which is reduced resulting from heating is brought into contact with water, water is vaporized and an air flow produces humidified air.