Method of controlling fuel gas feeding pressure and device used therefor

    公开(公告)号:JP2004183604A

    公开(公告)日:2004-07-02

    申请号:JP2002354018

    申请日:2002-12-05

    CPC classification number: Y02T10/32

    Abstract: PROBLEM TO BE SOLVED: To provide a method of controlling the feeding pressure of a fuel gas capable of keeping a pressure in a fuel tank constant without using a rotary machine and without causing weathering, and a device used therefor. SOLUTION: The method of controlling the feeding pressure of a fuel gas, which includes the steps of vaporizing an LNG 3 in a fuel tank 7 provided on a vehicle and feeding the same to an engine 36 from the fuel tank 7, keeps the feeding pressure of the fuel gas substantially constant by supplying a gas 3a containing high concentrations of methane in a high pressure cylinder 12 provided on the vehicle to the vapor phase portion of the fuel tank 7 when a pressure therein is lower than a preset one. COPYRIGHT: (C)2004,JPO&NCIPI

    Method for sterilization
    163.
    发明专利

    公开(公告)号:JP2004173704A

    公开(公告)日:2004-06-24

    申请号:JP2002339828

    申请日:2002-11-22

    Abstract: PROBLEM TO BE SOLVED: To provide a method for sterilization by which a sterilization effect can inexpensively and safely be improved without damaging a matter to be treated. SOLUTION: Atmospheric pressure plasma is generated between a high pressure electrode 1 and a low pressure electrode 2 in an atmospheric pressure plasma generating apparatus to sterilize the surface of the matter G to be treated with the atmospheric pressure plasma. Gas to be used for the atmospheric pressure is gaseous mixture which contains as principal component at least one selected from a group of inert gas consisting of helium, neon, argon, krypton, xenon, radon, and nitrogen, and contains ethylene and oxygen. COPYRIGHT: (C)2004,JPO

    Rotary valve for refrigerator and refrigerator
    164.
    发明专利

    公开(公告)号:JP2004163083A

    公开(公告)日:2004-06-10

    申请号:JP2003124963

    申请日:2003-04-30

    Inventor: TAKAGI NAOKO

    Abstract: PROBLEM TO BE SOLVED: To provide a rotary valve for a refrigerator and the refrigerator with minimized heat release of the rotary valve.
    SOLUTION: The rotary valve 9 for a refrigerating machine is so configured that: a high-pressure side connection port 12 for the working gas, a low-pressure side connection port 13 and a working section connection port 14 are provided in a housing 10; a high-pressure side passage 15 and a low-pressure side passage 16 are provided in a rotary member 11 rotating in the housing 10; the high-pressure side passage 15 interconnects the high-pressure side connection port 12 to the working section connection port 14; and the low-pressure side passage 16 interconnects the low-pressure side connection port 13 to the working section connection port 14. The high-pressure side passage 15 and the low-pressure side passage 16 constitute a pair for switching the high-pressure side and the low-pressure side to be connected to the working section connection port 14. A plurality of such pairs are arranged for one working section connection port 14. Accordingly, the rotary speed of the rotary member 11 is lowered to minimize the frictional heat, thereby improving the refrigeration capacity of the compact refrigerator.
    COPYRIGHT: (C)2004,JPO

    Exhaust gas treatment method and apparatus for gas sterilizer

    公开(公告)号:JP2004050170A

    公开(公告)日:2004-02-19

    申请号:JP2003147281

    申请日:2003-05-26

    Abstract: PROBLEM TO BE SOLVED: To provide an exhaust gas treatment method and apparatus for a gas sterilizer wherein a high concentration sterilization gas is effectively and safely made harmless. SOLUTION: This exhaust gas treatment apparatus 1 makes an exhaust gas discharged from a gas sterilizer 2 harmless, and is provided with an adsorption tower 5 adsorbing a sterilization gas in the exhaust gas, and a catalyst combustion apparatus 6 catalytically burning the sterilization gas in the exhaust gas discharged from the adsorption tower 5. Then ignition and explosion risks are drastically reduced, as the gas concentration of the sterilization gas flowing in the exhaust gas treatment system is overall reduced by arranging an air introduction path 8 introducing a dilution air to a first exhaust gas introduction path 7 which introduces the exhaust gas to the adsorption tower 5. COPYRIGHT: (C)2004,JPO

    High-purity nitrogen gas manufacturing device
    170.
    发明专利

    公开(公告)号:JP2004020161A

    公开(公告)日:2004-01-22

    申请号:JP2002180225

    申请日:2002-06-20

    Abstract: PROBLEM TO BE SOLVED: To provide a high-purity nitrogen gas manufacturing device miniaturizing the device whole body, simplifying the structure of the device whole body, and manufacturing the high-purity gas at low cost in such a way as reducing the equipment cost and the usage of cold liquid nitrogen. SOLUTION: This high-purity nitrogen gas manufacturing device is provided with an air compressor 1, a main heat exchanger 5 cooling compressed air compressed by the air compressor 1, a rectifying column 7, a condenser 18 provided in the upper part of the rectifying column 7, a liquid air sump 17 for manufacturing circulating liquid in the condenser 18, a pipe feeding the liquid air 8 in the bottom part of the rectifying column 7 to the liquid air sump 17, and a guide pipe 30 introducing the liquid air 9 in the liquid air sump 17 to an intermediate part of the main heat exchanger 5, exchanging its heat, vaporizing it, and releasing it to the outside. COPYRIGHT: (C)2004,JPO

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