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公开(公告)号：JPH0427782A
公开(公告)日：1992-01-30
申请号：JP13343990
申请日：1990-05-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： TAKAICHI KENJI
IPC: F04B39/16
Abstract: PURPOSE:To use the refrigerator oil which may be solved in a refrigerant and decomposed to generate acid by filling a chemical in a filter section formed on a cooling pipe connected to the inlet section of an oil feeding device. CONSTITUTION:A mixed liquid 11 of a refrigerant made of at least one or more carbon halogenide compounds substituted with hydrogen and the refrigerator oil solved in the refrigerant is sealed in a sealed casing 14. A machine section 1, a motor section 12 driving the machine section 1, and an oil feeding device 8 feeding the refrigerator oil to the machine section 1 are stored in the sealed casing 14. A filter section 16 is formed on a cooling pipe 15 connected to the inlet section of the oil feeding device 8. A chemical 17 is filled in the filter section 16. The moisture in the refrigerator oil is directly removed, the generated acid is removed, and the occurrence of leakage, corrosion abrasion, and defective cooling can be prevented.
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公开(公告)号：JPH03242477A
公开(公告)日：1991-10-29
申请号：JP3656890
申请日：1990-02-16
Applicant: MATSUSHITA REFRIGERATION
Inventor： TAKAICHI KENJI
IPC: F04B39/00
Abstract: PURPOSE:To maintain the high insulation quality of a terminal section by providing a projected area at the lower part of a sealed casing, and filling the projected area with a high insulation insulation solution in a compressor for a refrigerating system using a refrigerant 1,1,1,2-tetraflucroethane and refrigerator oil. CONSTITUTION:A projected area 13 is provided at a position adjacent to a motor section 10 at the lower part of a sealed casing 16 having a slope, and a terminal 14 is provided at the bottom part of the projected area 13. This area 13 is filled with a high insulation solution of a fluorine compound insoluble and having a higher specific gravity than 1,1,1,2-tetrafluoroethane hereinafter referred to as HFC-134a) and glycol refrigerator oil. The mixed solution of the refrigerant HFC-134a and glycol refrigerator oil is fed to a mechanical section 1 via an oil feed pipe 8 for the lubrication thereof. On the other hand, the insulation solution has a high specific gravity and not fed to the lower side of the mechanical section 1. Even if fed to the aforesaid lower side, the solution is collected in the projected area 13 along the slope of the sealed casing 13, thereby forming the film 15 of the high insulation solution.
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公开(公告)号：JPH02251032A
公开(公告)日：1990-10-08
申请号：JP7094189
申请日：1989-03-23
Applicant: MATSUSHITA REFRIGERATION
Inventor： FUJIMOTO RYUZO , TAKAICHI KENJI
IPC: F24F6/04
Abstract: PURPOSE:To provide a humidifier which has an increased gasifying amount and high humidifying capacity by a method wherein a protrusion part is formed at least on the one surface of a humidifying element. CONSTITUTION:A protrusion part 1c in the shape of chevron having an apex angle alpha is formed on a side 1a of a humidifying element 1. A plurality of the humidify elements 1 are arranged in a manner to hold a distance therebetween, and one end 1d is immersed in a feed tank 2 a feed to which is controlled by a solenoid valve. When dried air fed during humidifying operation and entering from a direction (a) passes a gap between the humidifying elements 1, since the protrusion part 1c is formed on the side 1a, the direction of air in the vicinity of the side is disturbed to produce a turbulent flow and sufficiently mixed with air entering the vicinity of the center of the gap. As a result, since the efficiency of contact between air entering the vicinity of the center of the gap and the side 1a is increased, a gasifying amount is increased. Further, since the surface area of the shape of the protrusion part 1c is increased to a value higher than that of a flat shape, a contact area is increased and humidifying capacity is improved.
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公开(公告)号：JPH02208430A
公开(公告)日：1990-08-20
申请号：JP2503889
申请日：1989-02-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： FUJIMOTO RYUZO , TAKAICHI KENJI
IPC: F24F6/04
Abstract: PURPOSE:To eliminate a deformation of a hollow structure when a humidifying operation is carried out, reduce a water passing resistance and provide a high efficiency by a method wherein a net formed into a hollow shape is constituted to be inserted into a hollow structure. CONSTITUTION:A bag like hollow structure 1 is made of porous sheet 1a having as its raw material hydrophilic high molecular material such as polyethylene, polypropylene or the like. A hollow net 5 is closely inserted into the structure 1 while being contacted with an upper inner surface and a lower inner surface, respectively. Then net 5 is made of raw material such as metal having a sufficient tension force in a radial direction. The structure 1 is made such that the sheet 1a is bent and each of the end surfaces of the sheet 1a except a water supplying port 4 is sealed with adhesive agent to make a bag-like shape. With this configuration, even if an air pressure is applied, the sheet 1a may not be flexed and the sectional area of the structure 1 may not be reduced. Accordingly, a water passing resistance when a humidifying operation is carried out can be low and a humidifying efficiency can be increased.
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公开(公告)号：JPH024171A
公开(公告)日：1990-01-09
申请号：JP15077888
申请日：1988-06-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： IWAMOTO TETSUMASA , TAKAICHI KENJI
IPC: F25B5/02
Abstract: PURPOSE:To obtain a low cost and simple refrigerating cycle by using an air separator on the outlet side of a condenser and further installing a projecting part covered with a heating means on a liquid drain side of said air separator. CONSTITUTION:During ordinary operation, electric power is not supplied to an electric heater 12 laid out around a projecting part 13 installed in the lower part of a liquid drain side 11 of an air separator 9. The refrigerant discharged from a compressor 1 is introduce into a pressure reducing device 10 by way of a condenser 2, and separated into liquid phase and vapor phase. The air separator 9 is divided into a vapor drain side 14 and a liquid drain side 11. Almost the entire refrigerant flows to a condenser 4 from the vapor drain side 14. During low temperature operation, electric power is supplied to an electric heater 12. The cooling medium introduced into the air separator 9 is separated into the vapor drain side 14 and the liquid drain side 11. The refrigerant tends to flow to a pressure reducing device 4 from the liquid drain side 11. However, the surrounding surfaces of a projecting part 13 are heated by the electric heater 12. As a result, the liquid refrigerant accumulated in the projecting part 13 generates bubbles, which produces cap closing phenomenon in the pressure reducing device 4, thereby preventing the refrigerant from flowing smoothly to the pressure reducing device 4.
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Patent Agency Ranking
公开(公告)号：JPH01306774A
公开(公告)日：1989-12-11
申请号：JP13780188
申请日：1988-06-03
Applicant: MATSUSHITA REFRIGERATION
Inventor： IWAMOTO TETSUMASA , TAKAICHI KENJI
Abstract: PURPOSE:To reduce power consumption in conventional low temperature operation, by applying non-azeotropic mixed refrigerant, and flowing a refrigerant having a low boiling point into a refrigeration cycle only when a cryogenic operation is required. CONSTITUTION:Non-azeotropic mixture of R-12 having a high boiling point and R-13B1 having a low boiling point is used as a refrigerant. During a cryogenic operation, the non-azeotropic mixed refrigerant is compressed by a compressor 1, and R-12 rich liquid refrigerant condensed by a No.1 condenser 5 is accumulated in a gas-liquid separator 7, and collected into a storage tank 15 through a solenoid valve 12 that is opened. Thereby, the refrigerant in the refrigeration cycle becomes rich with R-13B1 having a low boiling point, and the evaporation temperature in an evaporator 4 reaches an extreme low temperature. At this time, the pressure difference between a low pressure side and a high pressure side increases to that the load on the compressor 1 is increased causing an increase in the power consumption. During low temperature operation, as the accumulated refrigerant in the gas-liquid separator 7 is almost R-12 having a high boiling point and the solenoid valve 12 is closed, the refrigerant is introduced into a No.2 condenser 6, and mainly R-13 B1 is condensed. At this time, the pressure difference between the low pressure side and the high pressure side is low so that the load on the compressor is low causing a decrease in power consumption.
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公开(公告)号：JPH01155159A
公开(公告)日：1989-06-19
申请号：JP31593687
申请日：1987-12-14
Applicant: MATSUSHITA REFRIGERATION
Inventor： TAKAICHI KENJI
Abstract: PURPOSE: To prevent vibration, noise and waste of power by constituting a cooler of superconducting coils arranged as an electromagnetic fluid pump in the proximity of a refrigerant pipe, and a plurality of pairs of electrode corresponding to the superconducting coils disposed in the refrigerant pipe. CONSTITUTION: When a switch 20 is closed, refrigerant in a refrigerant pipe 9a at an electromagnetic fluid pump 10 section is ionized and a current flows from an electrode 13 toward an electrode 14. On the other hand, strong flux is generated from a superconducting coil 11 toward a superconducting coil 12 and the refrigerant is moved in the direction of a condenser 2 by Lorentz force to circulate through a cooler 8. When a switch 21 is closed a larger quantity of refrigerant is moved in the direction of the condenser and cooling capacity is increased even when a switch 22 is closed. Since an electromagnetic fluid pump generating no mechanical vibration can be formed, refrigerant can be protected against pulsation or generation of noise while reducing waste of power.
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公开(公告)号：JPS63318466A
公开(公告)日：1988-12-27
申请号：JP15471787
申请日：1987-06-22
Applicant: MATSUSHITA REFRIGERATION
Inventor： OHASHI YOSHINORI , NAGATA KOJI , TAKAICHI KENJI
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公开(公告)号：JPS63102921A
公开(公告)日：1988-05-07
申请号：JP24782686
申请日：1986-10-17
Applicant: MATSUSHITA REFRIGERATION
Inventor： TAKAICHI KENJI
Abstract: PURPOSE:To prepare a laminated structure having excellent stiffness and high dimensional accuracy, by laminating a metal plate having number of through- holes being coated with a molten resin on a film-like or a fabric-like soft and weak moisture permeable raw material. CONSTITUTION:A transparent composite raw material 19 (a soft and weak raw material) consisted of a silicone rubber thin film 19a and a reinforcing fiber 19b such as polyester, polyamide and so on and a metal plate 20 having plate 20 having a number of through-hole being coated with a molten resin 20b are laminated together in such a way that both are contacted with each other on the face of the reinforcing fiber 19b. Then, they are molded under pressure between two molds whose temp. are adjusted higher than the m.p. of the molten resin 20b and lower than the m.p. of the above described moisture permeable composite raw material 19. The moisture permeable composite material 19 which is former fabric-like, dimensionally unstable and soft and weak, can be thereby reinforced with the metal plate 20 to prepare a structure a structure 21 having excellent stiffness, which can be used as a wall material of a closed box body and so on.
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公开(公告)号：JPS6237659A
公开(公告)日：1987-02-18
申请号：JP17664385
申请日：1985-08-09
Applicant: MATSUSHITA REFRIGERATION
Inventor： TAKAICHI KENJI
IPC: F25D11/00
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