Abstract:
The present invention relates to a fine dust removal device attached to an electric rail car and, more specifically, to a fine dust removal device which is attached to the bottom of an electric rail car to keep an area where the electric rail car travels clean by absorbing and removing fine dust in the area while the electric rail car travels. To achieve this, the present invention comprises a main body part mounted at the bottom of an electric rail car, a filter part installed on the main body part to remove dust contained in the air, and an intake fan part installed on the main body part to draw external air in.
Abstract:
PURPOSE: An apparatus and method for controlling the directivity of a magnetic fluid are provided to maximize an electromotive force by directly circulating the magnetic fluid in a thermal conversion cycle. CONSTITUTION: An apparatus for controlling the directivity of a magnetic fluid (100) includes the magnetic fluid, an induction generator (200), and a polar direction control unit (300). The magnetic fluid is composed of magnetic nanoparticles. The induction generator includes a silicon tube and a solenoid coil outside the silicon tube. The solenoid coil is wound around the silicon tube to generate inductive power when the magnetic fluid passes through the inside of the silicon tube. The polar direction control unit generates magnetic flux and controls the polar directivity of the magnetic fluid in the same direction as the moving direction of the magnetic fluid. A permanent magnet (400) controls the polar directivity of the magnetic fluid passing through the solenoid coil in the same direction as the moving direction of the magnetic fluid.
Abstract:
PURPOSE: A duct cleaning robot is provided to perform cleaning work of a duct in short time by simultaneously cleaning upper and lower surfaces and both sides surfaces when a body operated. CONSTITUTION: A duct cleaning robot(100) comprises a body(110), a first brush unit(210), and a second brush unit(310). A body comprises a front wheel(112) and a rear wheel(114). The first brush unit is installed in the front, and the second brush unit is installed in the upper part. The front wheel and the rear wheel are connected by a caterpillar(116). The second brush unit comprises a first rotation unit(410), an operation unit, and a second brush(312). A first brush(214) of the first brush unit touches a bottom part of a duct. The second brush of the second brush unit cleans the inside and both sides of the duct while rotating and reciprocating to the both sides.
Abstract:
PURPOSE: A low floor tram with an on-car battery is provided to install a battery box capable of smoothly loading a large capacity of a battery and efficiently arrange a space. CONSTITUTION: A low floor tram comprises an on-car battery and a battery box. The on-car battery comprises a plurality of battery modules. The battery module charges power provided through a current collector. The battery box is installed on an inner corner of a vehicle module and has a square column shape. The battery box accepts the battery modules. The current collector of the vehicles module is installed on the roof.