KR860008364A - Double Fuel Diesel Engine Control - Google Patents

Abstract

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Description

Double Fuel Diesel Engine Control

Since this is an open matter, no full text was included.

FIG. 1 shows the first of the double fuel diesel engine control apparatus according to the present invention.

2 shows an example of a fuel injector coupled to FIG.

FIG. 3 shows an example of a fuel oil infusion pump which is coupled to the example of FIG. 1 together with an example of an infusion pump for fuel gas injection control oil.

4 is an enlarged perspective view of the slip mechanism of the fuel distribution device incorporated in the first example.

5 is a detailed cross-sectional view of the rod positioner coupled to the fuel distribution device.

* Explanation of symbols for main parts of the drawings

DESCRIPTION OF SYMBOLS 1: Cylinder 2: Fuel injector 3: Combustion chamber 4: Fuel injection pump 5: Control oil injection pump 6, 7: Control rack rod 100: Manual handle 101, 2011: Regulator 102: Speed controller 103,2013: Detector output shaft 104, 2014: regulator output shaft

105,107,110,113,137,138,2015,2017,2019,2020,2033,2034,2037,2038: arm

106,2016: Spring rod 108: Fuel control shaft 109: Slip device 111: Guide plate 112: Shaft 114: Spring sheet 5,206,215: Spring 116: Slip detector 120,1015,2022: Balance rod 121,122,104a, 1014b, 1016: Joint joint 23 , 2046: Oil control rod 124, 2045: Gas control rod 125, 126, 821, 822, 2047, 2048: Positioner 127, 128: Drive lever 131, 132, 133, 134: Lever 135, 2036: Fuel oil control shaft 136, 2035: Fuel gas control shaft 139, 145, 147: Support rod 140: Cylinder Stopper 141: Gas quantity lower limit setting device 142: Gas quantity upper limit setting device 143: Pulse motor 144, 1030a, 1030b: Stopper 146: Gas quantity upper limit detector 150, 820: Mode setter 151: Weighing setter 52: Dial 162, 163: Pressure detector 165: Start controller 201: fuel oil supply port 202: fuel oil needle 203: oil passage 204, 214: valve member 205: oil chamber 207, 216: valve seat 208: atomizer 209: fuel oil injection port 210: fuel gas supply port 211a, 211b: fuel gas 212: External cylinder 213: Fuel gas passage 217: Control oil supply port 218: Control oil chamber 228: Gas injection nozzle

229: seal oil supply port 401: pump body 402: plunger 403: pump drive unit 405: roller 406, 407, 511: discharge port 501: pilot cylinder 502: main cylinder 503, 504: cylinder chamber 506: valve propulsion rod 507: pilot piston 508: main Piston 801,802: Input circuit 803: CPU

804: Memory 805, 806: Output circuit 810: Speed controller 812: Speed detector 813: Weighing setter 814: Oil quantity lower limit setter 815: Oil quantity upper limit setter 816: Gas quantity lower limit setter 817: Gas quantity upper limit setter 818,819 : Pressure detector 830: Detector 831: Exhaust air pressure detector 832: Exhaust pressure / temperature detector 833: Gas leak detector 834: Engine protector 1010a: Gas control rod 1011b: Oil control rod 1018a, 1031a, 1031b: Cylinder 1020: Linear actuator 1020a, 1020b: Cylinder chambers 1021a, 1021b: Solenoid 1023: Limit switch 1023a: Feeler 1024; Setting member 1024a: Recess 1027: Servo actuator

Claims (13)

Oil burning mode in which only fuel oil is used as fuel, gas constant mode in which the amount of fuel oil is changed according to the load level and the amount of fuel gas is kept constant, and the amount of fuel gas is changed according to the load An operating mode setting device for selecting one mode from a plurality of fuel modes including an oil constant mode in which the oil injection rate is kept constant, a constant injection amount of fuel gas or fuel oil in the gas constant mode or the oil constant mode. The amount of fuel gas or fuel oil that can be changed according to the total fuel demand corresponding to the load based on the fuel mode selected by the fixed quantity setting device and the mode setting device and the fixed amount of fuel gas or fuel oil set by the mode setting device. To determine the distribution of fuel oil and fuel gas And a fuel injector configured to inject a predetermined amount of fuel gas or fuel oil set by the metering setting device into the combustion chamber and to inject a variable amount of fuel oil or fuel gas determined by the fuel distribution device into the combustion chamber. Double fuel diesel engine control device operable by the fuel oil and fuel gas, characterized in that. The fuel dispensing apparatus according to claim 1, wherein the fuel dispensing apparatus includes a lower limit value setting device for setting a lower limit value of a variable injection amount of fuel gas or fuel oil, and when the variable injection amount of fuel gas or fuel oil is about to fall below the lower limit value. The variable injection amount is maintained at the lower limit and the injection amount of the fuel oil or fuel gas which is set at a constant is controlled instead to be changed. 3. The apparatus of claim 2, wherein only the fuel oil is supplied to the fuel injector when the variable amount of fuel oil drops to a lower limit. The fuel distribution device according to any one of claims 1 to 3, wherein the fuel distribution device includes an upper limit value setting device for setting an upper limit value of a variable injection amount of fuel gas or fuel oil, wherein the variable injection amount of fuel gas or fuel oil is the upper limit value. Wherein the changeable amount of injection is maintained at the upper limit when it is about to exceed and the amount of fuel oil or fuel gas that is constantly set is controlled and varied instead. The device according to any one of claims 2 to 4, wherein the auxiliary device necessary for gas operation of the engine is automatically started when the gas constant mode or the oil constant mode is selected by the mode setting device. . The method according to any one of claims 1 to 5, wherein the metering setting device is adapted to set a constant injection amount of fuel gas or fuel oil after a satisfactory condition for gas operation of the engine is confirmed by the gas operating condition detection device. Device characterized in that. 7. An apparatus according to claim 5, wherein the auxiliary device comprises a fuel gas compressor and a seal oil pump. 8. The gas regulating rod according to any one of claims 1 to 7, wherein a gas adjusting rod engaged with the fuel gas injection amount control unit in the fuel distribution device, an oil adjusting rod disposed in parallel with the gas adjusting rod and engaged with the fuel oil injection amount control unit, The balance bar with the gas control rod and the oil control rod connected to the shaft at both ends, the regulator output shaft which is engaged with the balance bar and displaces the control bar in the axial direction, and is connected to each control bar A positioner for setting, and a quantitative setting device for determining the position of the positioner is included. 9. The device of claim 8, wherein the engagement point between the regulator output shaft and the balance bar is adapted to adjust the length of the arm between that point and the gas control rod or oil control rod. 10. The piston rod according to claim 9, wherein a piston cylinder which is normally extended is connected between the axis of the balance bar and the gas adjusting rod or the oil adjusting rod and the positioner, and the adjusting rod is reached and maintained at a position corresponding to the lower limit of the injection amount. And the piston cylinder is adapted to contract in the axial direction of the adjusting rod. 11. The piston according to any one of claims 1 to 10, wherein the positioner is a pilot cylinder subjected to a pilot pressure set by the metering setting device, a piston which is disposed in the pilot cylinder and receives a spring force toward the pilot cylinder, and a piston rod fixed to the piston. And a valve member installed in the valve member, an actuating piston having a valve seat to interact with the valve member, and an actuating cylinder configured to receive the piston and to receive an actuation pressure. 12. The linear actuator of any one of claims 8 to 11, wherein the positioner installed in the gas regulating rod drives the gas regulating rod in the axial direction of the gas regulating rod; A setting member positioned at a position corresponding to the fuel gas pressure and operated with the detector, and a servo actuator for operating the setting member according to the pressure set by the device for setting a constant gas injection amount, the linear actuator including the setting member. And operate the gas adjusting rod in accordance with the direction and amount of position offset between the sensor and the probe. 13. The signal according to claim 12, wherein the detector operates a solenoid switching valve for sequentially controlling the pressure in the air pressure chamber formed on both sides of the piston of the linear actuator for operating the gas regulating rod according to the direction and amount of the position offset. And a limit switch having a filler adapted to be generated. ※ Note: The disclosure is based on the initial application.