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    • 3. 发明专利
    • CAR BODY STRUCTURE FOR RAILWAY HEAD VEHICLE
    • JPH11301472A
    • 1999-11-02
    • JP10752498
    • 1998-04-17
    • KAWASAKI HEAVY IND LTD
    • YAMAGAMI YORIOTAKASE HIDEKI
    • B61D17/02
    • PROBLEM TO BE SOLVED: To simplify the outline shape in the periphery of an window part of an operation chamber by connecting a suction port provided in the outline and a discharge port provided close to a rear of the head car body to each other through a duct passing inside of the car body. SOLUTION: A suction port 2 is provided at a central part of an intermediate area at 5 m from a tip of the head part of a car body 1. A duct 4 is horizontally extended rear from the suction port 2, and the duct 4 is inclined upward in a rear part thereof, and a discharge port 3 is provided at a central part at about 20 m from a tip close to a rear end of a roof surface. A pair of suction ports 2 in right and left are provided in a lower part of the tip area, and connected to the discharge ports 3 provided in a lower part of both side surfaces in a rear part of the car body 1 through the duct 4. A part of the compressed wave from the suction port is smoothly escaped from the discharge ports through the duct, and while change of the pressure gradient of the microbarometric wave to be generated in case of traveling into a tunnel with the lapse of time can be lowered.
    • 6. 发明专利
    • VENTILATION CONTROL METHOD AND SYSTEM
    • JP2000185546A
    • 2000-07-04
    • JP36590498
    • 1998-12-24
    • KAWASAKI HEAVY IND LTD
    • HIRAYAMA MASAAKISAKANAKA SATORUOKITA KENGOTAKASE HIDEKI
    • B61D27/00B60H1/24F24F7/007
    • PROBLEM TO BE SOLVED: To provide a ventilation control method and a ventilation system, high in control performance, low in cost, eliminating the need for considering sensor drift effects, and requiring no calibration for two sensors. SOLUTION: This ventilation control method employs an air-supply blower 18 and an air-exhaust blower 20, each equipped with its own motor, to independently control the speed of the motor for the air-supply blower 18 and/or the air-exhaust blower 20, thereby reducing pressure fluctuations inside a vehicle with pressure fluctuations outside it. Only the pressure outside the vehicle is measured. A target value setting logic 46 then uses the measurement taken of the outside pressure to find a target value for the pressure inside the vehicle. A control device 48 then uses the target interior pressure value and the current outside pressure value prepares a command for the motor speed for the air- supply blower 18 and/or the air-exhaust blower 20. It thus controls the flow rate of the supply air and exhaust air independently of each other so that the interior pressure can gradually follow the outside pressure.
    • 8. 发明专利
    • BODY FORM OF HEAD ROLLING STOCK
    • JPH11321640A
    • 1999-11-24
    • JP12842298
    • 1998-05-12
    • KAWASAKI HEAVY IND LTD
    • YAMAGAMI YORIOTAKASE HIDEKI
    • B61D17/02
    • PROBLEM TO BE SOLVED: To disperse and reduce the microbarometric wave generated when a rolling stock rushes into a tunnel by providing the area changed in cross section in a plurality of positions along the longitudinal direction in a cross sectional area distribution extending from the top end of the body of a head rolling stock to the general section part (maximum cross sectional area part). SOLUTION: A body 11 has a substantially bullet-shaped streamline form in a plane view, and the upper surface of the body 11 is changed in two steps to separately provide two cross section changing areas. Namely, the top end part of the body 11 is raised upward in a curved form to form a cross sectional area changing area 2 of the first step, and the upper surface is extended backward substantially horizontally in a flat surface form, inclined up to the back, and raised near the longitudinal middle position of the body 11 to form a cross sectional area changing area 3 of the second step. According to this structure, the microbarometric wave generated in the rushing into a tunnel of a rolling stock can be dispersed and reduced in two steps, and the explosive sound in the tunnel outlet caused by the microbarometric wave can be effectively reduced.