Abstract: The present invention provides a two solenoid valve relay with a two-phase fuel injection valve for a diesel engine, which is installed on a valve itself to enable injection at pressure greater than opening pressure, at which the fuel enters into a fuel valve, thereby improving fuel injection performance, and which is configured to enable adjustment of an injection timing at the opening pressure within the valve, wherein injection timings through a solenoid valve is provided for low load and high load, respectively, such that a distinct difference exists between the injection timings to open the nozzle hole of the nozzle in a differential manner at pressure higher than the pressure, at which the fuel enters to the fuel valve and internal spring opening pressure, thereby injecting fuel at high pressure even at low load to facilitate vaporization, and wherein, in case of a high speed operation or high load, low pressure/high pressure needle valves are opened at the same time to quickly inject fuel of a high vol

Abstract: A check valve driving device for injecting gas, which enables an accurate operation of a check valve for injecting gas and long-term usage by enhancing durability, comprises: an upper portion fixing block which moves vertically by coupling onto a yoke repeating vertical movements; a lower portion fixing block which is coupled to a prechamber at a lower portion of the yoke; a roller which is rotatably coupled onto the upper portion fixing block, and of which a center portion diameter is bigger than diameters of both end portions; a guide, which is rotatably coupled onto the lower portion fixing block, for rotating when a curved surface on one side thereof comes into contact with the roller moving vertically; an operation piece, which is rotatably coupled onto the lower portion fixing block, wherein a front end of the operation piece moves vertically in accordance with the rotation of the guide; and a pressing rod which is coupled to the front end of the operation piece, and which is lowered in accordance with

Abstract: A check vale for injecting gas comprises: an integrally formed body provided with a corrugated portion having a diameter smaller than other areas on an outer surface of an upper portion of a gas flow hole; an integrally formed spindle perpendicularly penetrating the body and provided with a corrugated portion having a diameter smaller than other areas on an outer surface of a lower portion of the gas flow hole of the body; a spring penetrating an upper end portion of the spindle; a spring seat for fixing the spring penetrating the upper end portion of the spindle and for guiding the spindle to a perpendicular position; a coupling ring coupled to an upper end of the body for fixing the body to a prechamber; and a spacer coupled to a lower end of the body for fixing the lower end of the body that covers an outer edge of the spindle to the prechamber.

Abstract: Disclosed herein is a precombustion chamber structure for a gas engine. The precombustion chamber structure is configured to facilitate disassembly of a precombustion chamber tip, thus making maintenance, repair or inspection of the precombustion chamber easy. For this, the precombustion chamber structure includes: a body (110) having a main body (111), a water jacket (112) and a precombustion chamber tip (113); and a spark plug (120) for igniting fuel gas injected into the precombustion chamber (114) formed in the body (110). The precombustion chamber structure ignites fuel gas and supplies the ignited fuel gas into a main combustion chamber. A tool insert groove (1131) is formed in the junction between the precombustion chamber tip and the water jacket. The tool insert groove (1131) allows a tool for disassembly to be inserted into a space between the precombustion chamber tip and the water jacket.

Abstract: The present invention relates to a dual fuel injection valve having a pumping nozzle for a diesel engine and a gas engine, and an objective of the present invention is to provide a fuel injection valve in which, by using two kinds of fuel entering into a fuel valve, a warming up and injection of pilot fuel may be performed in an initial injection and injection of main fuel may be performed subsequently such that subsequent dual fuel is used for combustion, thereby increasing fuel injection performance.

Abstract: A fuel injection pump having a separable plunger includes a separable plunger of which outer circumference is slide coupled to an inside of the a such that a lower portion thereof is supported by an upper portion of a main plunger to enable upward and downward slide movement in association with the main plunger, wherein an injection timing control spiral step of which upper surface is formed in a spiral shape, is protrudingly formed on the outer circumference thereof and a fuel passage is formed on one side of the outer circumference thereof including the injection timing control spiral step and an elastic member having a lower portion elastically supported by the separable plunger and an upper portion inserted within the barrel to be supported by an upper surface of the barrel.

Abstract: The present invention provides a two solenoid valve relay with a two-phase fuel injection valve for a diesel engine, which is installed on a valve itself to enable injection at pressure greater than opening pressure, at which the fuel enters into a fuel valve, thereby improving fuel injection performance, and which is configured to enable adjustment of an injection timing at the opening pressure within the valve, wherein injection timings through a solenoid valve is provided for low load and high load, respectively, such that a distinct difference exists between the injection timings to open the nozzle hole of the nozzle in a differential manner at pressure higher than the pressure, at which the fuel enters to the fuel valve and internal spring opening pressure, thereby injecting fuel at high pressure even at low load to facilitate vaporization, and wherein, in case of a high speed operation or high load, low pressure/high pressure needle valves are opened at the same time to quickly inject fuel of a high vol

Abstract: Disclosed herein is a two-stage fuel injection valve for a diesel engine. The valve includes a fuel valve block (110) having therein a passage (1701) into which fuel is supplied; a nozzle (140) having a low pressure nozzle hole (160) and a high pressure nozzle hole (161); a needle valve (130) differentially opening the low pressure nozzle hole and the high pressure nozzle; pressure booster spindles (141), (142) and (143) pressurizing the needle valve to boost pressure of low-load fuel; a shuttle valve (150) configured to supply a gauge pressure to the pressure booster spindles, thus raising the pressure of the fuel; a lifting bush valve (180) discharging fuel to a fuel discharge hole through a gap between the fuel discharge hole and a nozzle holder when a solenoid valve (201) is moved upwards; and the solenoid valve (201) controlling pressure applied to the lifting bush valve.

Abstract: A pedal driving mechanism for a bicycle which contains structurally improved pedal arms on which pedals are installed to increase the rotary radius of the pedals during the running of the bicycle to obtain optimum driving energy with minimum physical energy consumption, wherein the structure of pedaling mechanism defines a joining line formed by the tooth-coupling of a fixing gear and a rotary gear with the axle line of a driving arm at a right angle, and the trace of the linkage formed by a connection arm and a connection link is set to move in a spiral motion forced to rotate with respect to the center of the fixing gear.

Abstract: A pedal driving mechanism for a bicycle which contains structurally improved pedal arms on which pedals are installed to increase the rotary radius of the pedals during the running of the bicycle to obtain optimum driving energy with minimum physical energy consumption, wherein the structure of pedaling mechanism defines a joining line formed by the tooth-coupling of a fixing gear and a rotary gear with the axle line of a driving arm at a right angle, and the trace of the linkage formed by a connection arm and a connection link is set to move in a spiral motion forced to rotate with respect to the center of the fixing gear.

Abstract: A photoresist dispensing device for use in applying a metered amount of photoresist on a wafer comprises, a photoresist storage tank, a nozzle for spraying the photoresist on the wafer, a feeder unit for drawing a metered amount of the photoresist out of the storage tank and discharging it through the nozzle, a pneumatic control unit for controlling the operation of the feeder unit with the use of pressurized air; and a filter disposed in between the storage tank and the feeder unit for removing alien matters present the photoresist.

Abstract: A wire protecting structure for connecting the wire to a insulator mounted onto a pole is directed to facilitate reception of the wire therein and to prevent exposure of the wire therefrom. The wire protecting structure includes a tube having a slit which is longitudinally formed throughout the tube and has substantially a width to facilitate insert of the wire into the tube, and a plurality of protrusions which may be formed at outer surface of the tube; a cover for enforcing the tube to closely contact the wire to the tube, wherein an edge of the cover is integral with outer surface of the tube, other edge of the cover is provided with a plurality of holes which are held to the protrusions of the tube, and a mid-portion of the cover is attached to the top portion of the insulator; and elongated binders wound about the tube and the cover, in a spiral winding configuration, to hold the tube and the cover to the insulator.

Abstract: A variable pedal driving device for a bicycle, the device allowing the bicycle pedals to slide along crankshafts during operation of the device. Each pedal is coupled to a slide pipe slidably mounted on a crankshaft. The slide pipe is in turn connected to an eccentric member mounted on the main shaft of the driving device. When a pedal is driven in a forward direction, the eccentric member causes the pedal to extend out to a maximum distance from the main shaft, for more efficient driving of the bicycle.