Patent application number | Description | Published |
20160032945 | HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE - The present disclosure relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators, in which each of the actuators includes a pump/motor, is operated under a control of a corresponding pump/motor, and stores working oil in an accumulator or receives the working oil supplemented from the accumulator in accordance with a difference between a flow rate entering the actuator and a flow rate discharged from the actuator. | 02-04-2016 |
20160102686 | HYDRAULIC SYSTEM FOR CONSTRUCTION EQUIPMENT - The present disclosure relates to a hydraulic system for construction equipment, and more particularly, to a hydraulic system, in which an actuator is controlled by a pump/motor. The hydraulic system for construction equipment according to the present disclosure includes logic valves in first and second hydraulic lines provided to an actuator, respectively, and when it is desired to operate the actuator in a state where an operation of the actuator is stopped by closing the logic valves, a pressure difference may be resolved by increasing pressure in sections of a pump/motor and the logic valves in advance even if a load is applied to the actuator, and thus the actuator may implement a desired operation without being affected by the load. That is, it is possible to improve operation controllability of the actuator. | 04-14-2016 |
Patent application number | Description | Published |
20140035477 | SINGLE STAGE FORWARD-FLYBACK CONVERTER AND POWER SUPPLY APPARATUS - There are provided a single stage forward-flyback converter, and a power supply apparatus capable of increasing power factor correction and power conversion efficiency. The single stage forward-flyback converter includes: a forward converter unit including a transformer having a primary winding receiving input power and a first secondary winding magnetically coupled to the primary winding to receive power induced thereto, and converting the power in a forward scheme; and a flyback converter unit sharing the transformer, including a second secondary winding, and converting the power in a flyback scheme, wherein the forward converter unit is selectively operated according to a voltage level of the input power. | 02-06-2014 |
20140035485 | SINGLE STAGE FORWARD-FLYBACK CONVERTER AND POWER SUPPLY APPARATUS - There is provided a single-stage forward-flyback converter capable of increasing power factor and power conversion efficiency while performing power factor correction and constant current control in a single-stage circuit. The converter includes: a power converting unit including a transformer having a primary winding receiving input power and a secondary winding magnetically coupled to the primary winding to receive power induced thereto, and converting the input power in a forward scheme and a flyback scheme; a balancing unit maintaining balance between a power level by the forward scheme of the power converting unit and a power level by the flyback scheme thereof; and a path providing unit clamping the power by the forward scheme of the power converting unit and the power by the flyback scheme thereof to provide a power transfer path, wherein the power converting unit selectively operates the forward scheme according to a voltage level of input power. | 02-06-2014 |
20150129963 | ARRAY SUBSTRATE AND A DISPLAY DEVICE HAVING THE SAME - An array substrate includes a substrate, a plurality of gate lines extending in a first direction on the substrate, a plurality of data lines including first and second data line pairs separated by cutting portions and a plurality of active patterns electrically connected to the first and second data line pairs. The data lines extend in a second direction crossing the first direction. The active patterns overlap the cutting portion and overlap a first gate line. | 05-14-2015 |
20150162355 | DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME - A display panel includes a first substrate including a switching device array, a second substrate spaced apart from the first substrate, a column spacer maintaining a cell gap between the first substrate and the second substrate, the first substrate includes a gate line on a base substrate and extending in a direction, a data line crossing with the gate line, a switching device electrically connected to the gate line and the data line and including a gate electrode, a source electrode and a drain electrode, a pixel electrode connected to the switching device and a dummy pattern adjacent to the column spacer. | 06-11-2015 |
Patent application number | Description | Published |
20120096670 | VACUUM CLEANER HAVING STERILIZATION FUNCTION - A suction nozzle for use in a vacuum cleaner includes a suction opening through which air is drawn in from a surface to be cleaned, a sterilization chamber having at least one inlet and at least one outlet, the sterilization chamber being in fluid communication with the suction opening through the at least one inlet, and a sterilization unit disposed in the sterilization chamber to sterilize the air drawn into the sterilization chamber. The air drawn into the sterilization chamber revolves while moving from the at least one inlet to the at least one outlet. | 04-26-2012 |
20120144787 | DUST COLLECTOR COMPRISING A HANDLE UNIT AND INTENDED FOR A VACUUM CLEANER - Disclosed is a dust collector provided with a dust-removing unit. The disclosed dust collector comprises: a first centrifugal separating tube defining a first centrifugal area for separating dust from air suctioned in through a first inlet; a first dust box for collecting dust separated in the first centrifugal area; a first detaching portion having a first exhaust pipe unit for exhausting the air from the first centrifugal separating tube and the first dust box to the outside; and a handle unit for maintaining the first centrifugal separating tube and the first dust box coupled together, or for releasing the coupling thereof. | 06-14-2012 |
20120145009 | WET TYPE DUST COLLECTOR FOR VACUUM CLEANER - A wet type dust collecting apparatus of a vacuum cleaner is provided. The wet type dust collecting apparatus of a vacuum cleaner includes a first separating unit configured to filter out and discharge dust by rotating air which is inlet via a first air inlet, and a plurality of a second centrifugal separating units configured to filter out dust from the air which is discharged from the first separating unit, and configured to eliminate dust from the inlet air via water which is filled inside of the second centrifugal separating units. | 06-14-2012 |
20120180255 | DRUM TYPE VACUUM CLEANER AND ASSEMBLY METHOD OF THE SAME - A drum type vacuum cleaner includes a centrifugal separator to separate dust from air using centrifugal force, a dust tank having an open top through which the centrifugal separator is mounted in the dust tank, the dust tank being provided with a dust collector to store the separated dust, and a cover unit having a motor to generate suction force, the cover unit being mounted to cover the top of the dust tank, wherein the centrifugal separator is disposed so that a central axis of rotary force of the centrifugal separator to whirl air is at a right angle to a central axis of the motor, whereby dust contained in suctioned air is discharged to the dust collector, and air from which dust has been separated is discharged to the outside by the motor provided at the cover unit. | 07-19-2012 |
20120228785 | WATER FILTERING DEVICE EQUIPPED WITH WATER LEVEL ADJUSTMENT UNIT - A water filtering device equipped with a water level adjustment unit is provided. The water filtering device includes an external air inlet through which dust-containing air flows in, a dust separator communicating with the external air inlet and separating dust in the inflow air, exhaust outlets communicating with the dust separator and discharging the air from which the dust has been separated, a dust container communicating with the dust separator and being filled with water, and a water level adjustment unit installed in the dust container to adjust the level of the water in the dust container. The water level adjustment unit includes a supercharged water drainage tube installed on a bottom of the dust container, and a manual opening/closing device for adjusting the level of the water through the supercharged water drainage tube. | 09-13-2012 |