Patent application number | Description | Published |
20090096282 | SOLENOID VALVE FOR BRAKE SYSTEM - A solenoid valve for a brake system capable of being easily manufactured with reduced manufacturing costs is disclosed. A valve seat member has an inner passage formed through the valve seat member in a longitudinal direction thereof, an outer passage formed on an outer surface of the valve seat member in the longitudinal direction, and a seat portion formed with a first orifice above the inner passage. The seat portion is formed unitarily with the valve seat member. A sleeve is coupled on the outer surface of the valve seat member. The sleeve has a flange portion to be fixed to a modulator block. A valve core is coupled to a portion of the sleeve, opposite to the flange portion. An armature is slidably mounted in the sleeve. The armature has an opening/closing portion to open or close the first orifice. A restoring spring presses the armature toward the first orifice. | 04-16-2009 |
20090121541 | SOLENOID VALVE FOR BRAKE SYSTEM - A solenoid valve for a brake system, which has a simple constitution and can be easily manufactured with reduced manufacturing costs, is disclosed. A valve core is formed in a cylindrical shape, and has a through-hole formed in a longitudinal direction of the valve core and a fluid passage formed in a radial direction of the valve core so as to communicate with the through-hole. A sleeve is coupled to an outer surface of the valve core. The sleeve has a dome-shaped shielding portion at one end, and a flange portion to be fixed to a modulator block at the other end. An armature is slidably mounted in the sleeve. An exciting coil is provided to move the armature. A valve seat is fixed in the valve core, and has a first orifice. A plunger is mounted in the valve core. The plunger moves by movement of the armature to open or close the first orifice. A restoring spring is provided to press the plunger toward the armature. A filter member is coupled to the valve core to surround an outer surface and an end portion of the valve core, which are to be received in a bore of the modulator block. The filter member includes a filtering part to filter oil, a second orifice to rectify oil flow, and a check valve to permit oil to flow back when braking operation is released. | 05-14-2009 |
20110074205 | PUMP UNIT FOR ELECTRONICALLY CONTROLLED BRAKE SYSTEM - Disclosed is a pump unit for an electronically controlled brake system. The pump unit is operated by a motor having a shaft to be rotated about a rotating axis, and the shaft includes a concentric shaft portion and an eccentric portion integrally formed with each other. An eccentric bearing is coupled to the concentric shaft portion and a concentric bearing is coupled to the eccentric portion, to reduce hydraulic pulsation during operation of pumps and achieve rapid generation of hydraulic pressure. | 03-31-2011 |
20110180730 | COUNTERFEIT DETECTOR - The present disclosure provides a counterfeit detector which identifies whether a security document or the like is authentic by irradiating UV rays from UV LEDs onto fluorescent security marks formed on the security document. UV rays emitted from the UV LEDs are independently condensed and reflected, thus enabling a user to more effectively identify the fluorescent security marks that are formed in special shapes using UV fluorescent material. | 07-28-2011 |
20120063092 | HEAT-DISSIPATING DEVICE AND ELECTRIC APPARATUS HAVING THE SAME - A heat-dissipating device and an electronic apparatus having the same are disclosed. The heat-dissipating device includes a heat-transferring heat pipe unit having a wick type of a heat pipe, in which a wick is formed on an inner surface of the heat pipe and a working fluid is injected into the heat pipe, and a heat-dissipating heat pipe unit having an oscillating capillary type of a loop heat pipe, in which the loop heat pipe is formed as a capillary and a working fluid is injected into the loop heat pipe. Here, the heat pipe includes a radiator being disposed adjacent to a heat source and transporting heat transferred from the heat source to the loop heat pipe, and the loop heat pipe includes a heat-receiving portion, which is thermally coupled to the radiator, and a heat-dissipating portion, which releases heat absorbed from the heat-receiving portion. | 03-15-2012 |
20120198695 | MANUFACTURING METHOD OF HEAT PIPE TYPE HEAT-DISSIPATING DEVICE - There is disclosed a manufacturing method of a heat pipe type heat-dissipating device. The method includes the steps of: winding a pipe on a loop forming mold in a spiral shape to form a pipe loop; and pressing at least a section of an outer circumference of the pipe loop so that the pipe loop is plastically deformed in a shape corresponding to the shape of the loop forming mold. | 08-09-2012 |
20120314415 | LED LIGHTING APPARATUS - Disclosed is a light-emitting diode (LED) lighting apparatus. The LED lighting apparatus comprises: a light source module comprising an LED light source; a thermal base coupled to the light source module so as to receive heat generated by the light source module; and a heat-dissipating member comprising a ventilation unit coupled to an edge region of the thermal base so as to discharge heat transmitted from the thermal base and open a central area of the thermal base so as to facilitate air ventilation to the outside. The LED lighting apparatus can increase heat-dissipating efficiency by maximizing ventilation efficiency and enabling air around the heat-dissipating member to flow smoothly without stagnating. | 12-13-2012 |
20130044433 | HEAT-DISSIPATING DEVICE FOR ELECTRONIC APPARATUS - A heat-dissipating device for an electronic apparatus can include: a thermal base coupled to a first electronic component in such a manner that enables heat-transfer therebetween so that heat generated by the first electronic component mounted on a substrate is absorbed thereby; and a vibrating capillary-shaped heat-pipe loop comprising a first heat-absorption portion coupled with the thermal base in such a manner that enables heat-transfer therebetween and a heat-dissipating portion configured to dissipate heat absorbed by the first heat-absorption portion, the heat-pipe loop having working fluid injected thereinto. The heat-pipe loop can be radially disposed with a central area thereof hollowed out, and an assembly area of a coupling member can be exposed in the central area so that the coupling member for coupling the thermal base to the substrate is coupled through the central area. | 02-21-2013 |
20130051038 | LED LIGHTING DEVICE AND STREETLIGHT DEVICE HAVING SAME - An LED lighting device includes: an LED module; a thermal base coupled with the LED module and configured to absorb heat; and a heat-pipe loop formed in a tubule shape and having working fluid injected thereinto and comprising a heat-absorption portion coupled with the thermal base and configured to absorb heat and a heat-dissipating portion configured to dissipate the heat absorbed by the heat-absorption portion, wherein each coil of the heat-pipe loop is formed in a thin and long shape, and one side of the thin-and-long coil is coupled to the thermal base, and the other side of the thin-and-long coil is protruded to an outside from an edge of the thermal base. | 02-28-2013 |
20130306123 | POWER GENERATOR - Disclosed is a generator. The generator in accordance with an embodiment of the present invention includes: a thermoelectric element, which creates an electromotive force by using a temperature difference between a high-temperature portion and a low-temperature portion; a heat source, which is thermally coupled to the high-temperature portion and transfers heat to the high-temperature portion; and a vibrating capillary-shaped heat-pipe, which has a working fluid injected therein, is thermally coupled to the low-temperature portion, and discharges heat of the low-temperature portion. The generator in accordance with the present invention can increase an efficiency of power generation using the thermoelectric element by employing a highly exothermic vibrating capillary-shaped heat-pipe to maintain the temperature difference required for power generation. | 11-21-2013 |
20140376248 | LED LIGHTING DEVICE AND VEHICLE HEADLIGHT HAVING SAME - An LED lighting device includes an LED module; a light guide member disposed adjacent to the LED module guides light emitted from the LED module towards an object; a heat transfer member coupled to the LED module absorbs the heat from the LED module; a heat-absorbing portion is formed in the shape of a capillary tube, injected with working fluid, and coupled to the heat transfer member so as to absorb heat; and a heat pipe loop provided with a heat-dissipating portion for dissipating the heat absorbed in the heat-absorbing portion. The LED lighting device can have a simple structure without a cooling fan while obtaining a high output by including the heat-dissipating portion which has a large dissipation area and high heat transfer performance. Since heat dissipation can be carried out without an additional cooling device, minor failures can be reduced, and maintenance of the device can be simplified. | 12-25-2014 |