摘要:
Provided is an ignition plug used for an internal-combustion engine. The ignition plug includes: a center electrode; an insulator disposed outside the center electrode; a metal housing disposed outside the insulator; a ground electrode having an end connected to the metal housing and the other end facing the center electrode; and an electrode tip fixed to one or more of the center electrode and the ground electrode. The electrode tip is made of an alloy of iridium Ir, hafnium Hf, and niobium Nb. Therefore, the ignition plug with the low-cost iridium can have high resistance to prevent an iridium element from oxidizing and vaporizing in high speed driving conditions.
摘要:
A ventilating device and a refrigerator, more particularly, a ventilating device including a scroll (122) of an optimized structure and a refrigerator having the same are disclosed. The ventilating device includes a ventilation fan for ventilating air, a first duct (130) for allowing some of the air discharged from the ventilation fan to flow therealong, a second (140) duct for allowing at least some of the remaining air, excluding the air discharged from the ventilation fan and flowing along the first duct, to flow therealong, and a scroll for guiding the air discharged from the ventilation fan to the first duct (130) and the second duct (140), the scroll (122) being constructed in the shape of a spiral track in which a coefficient of expansion angle from a cutoff part to at least one of the first (130) and second (140) ducts is 0.35 to 0.4.
摘要:
A refrigerator that is capable of easily operating a storage chamber (30) where cooling is carried out independently from a cold chamber (10) is disclosed. The refrigerator includes a refrigerator body having a cold chamber (10) defined therein and a storage chamber (30) disposed in the cold chamber, a cool air generation chamber having a cooler and a fan (102) for supplying cool air mounted therein, a partition plate for partitioning the cold chamber (10) and the cool air generation chamber from each other, the partition plate having a main flow channel (103) for guiding the cool air supplied by the fan (102) to the cold chamber (10) and at least one cool air hole (201) located between the fan (102) and the main flow channel (103) for bypassing the cool air, and at least one bypass duct (200) for guiding the cool air bypassed through the at least one cool air hole (201) to the storage chamber (30).
摘要:
The present invention relates in general to a cathode ray tube, more particularly, to a structure of an electron gun for enhancing resolution of a cathode ray tube. The structure of an electron gun for a cathode ray tube of the invention is effective for enhancing the resolution of the screen without an application of a dynamic voltage.
摘要:
A structure of an electron gun for a color cathode ray tube capable of reducing a drive voltage by creating an optimum relation among a cathode, a first electrode, and a second electrode mounted in the electron gun, and preventing degradation in response to input signals on a high-resolution screen and a focus characteristic.
摘要:
A refrigerator and a control method for the same are provided. A refrigerator includes a body having a cooling compartment and a storage compartment provided in the cooling compartment to form a predetermined cooling space, a cool air generation compartment having a cooler and a fan to supply cool air, and a partition plate that partitions a predetermined space into the cooling compartment and the cool air generation compartment. The partition plate includes a main path to guide the cool air into the cooling compartment and a bypass path to guide the cool air into the storage compartment. A cool air controller is provided at the bypass path to control the cool air supplied to the storage compartment via the bypass path.
摘要:
A ventilation device of a refrigerator is configured to prevent freezing of condensed water. The condensed water does not accumulate at the corresponding portion, and hence formation of ice is prevented. The generation of noise and the change of the efficiency of the ventilation fan do not occur, and the risk of ice contacting the shroud of the ventilation fan is reduced and reliability may be improved.
摘要:
A LCD device according to an embodiment of the present invention includes a LCD panel including liquid crystal, and a backlight unit including a light emitting diode (LED) array including a plurality of LEDs, the plurality of LEDs having a peripheral LED disposed at a peripheral end of the LED array, and a light guide plate disposed below the LCD panel, each LED having a light emission surface to emit light to a light incidence surface of the light guide plate. The emission surface of the peripheral LED completely covers a peripheral end of the light incidence surface, the peripheral end of the light incidence surface being an area adjacent to a lateral surface of the light guide plate.
摘要:
A refrigerator that is capable of achieving smooth flow of cool air therein and improving cooling efficiency of a cooled evaporator (10) and a control method of the same that is capable of controlling operation time of an evaporator (10) and a fan (20), thereby improving cooling efficiency of the refrigerator are disclosed.
摘要:
A LCD device according to an embodiment of the present invention includes a LCD panel including liquid crystal, and a backlight unit including a light emitting diode (LED) array including a plurality of LEDs, the plurality of LEDs having a peripheral LED disposed at a peripheral end of the LED array, and a light guide plate disposed below the LCD panel, each LED having a light emission surface to emit light to a light incidence surface of the light guide plate. The emission surface of the peripheral LED completely covers a peripheral end of the light incidence surface, the peripheral end of the light incidence surface being an area adjacent to a lateral surface of the light guide plate.