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Twin-jet-nozzle fuel system with temperature sensor and sensor manufacturing process of twin-jet-nozzle fuel system
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A technology of temperature sensor and fuel system, which is applied in the direction of manufacturing tools, charging system, engine control, etc., can solve problems such as easy to be oxidized, unable to automatically judge fuel injector blockage, blunt temperature sensing, etc., to speed up the reaction speed and improve The shortcomings of easy oxidation and corrosion, the effect of improving sensitivity
Inactive Publication Date: 2017-02-01
TELLHOW SCI TECH CO LTD
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Problems solved by technology
According to the engine speed, the electronic control unit (1) calculates the fuel injection time available for each cycle of the engine (two-stroke engine 1 revolution / cycle); according to the total fuel quantity and available fuel injection time and the intake pressure sensor (5) And the signal of the throttleposition sensor (6), the electronic control unit (1) determines which stage the injector is working in: the small injector (2) open stage, the large injector (3) open stage, or the two or open at the same time; the number of opened injectors and the injection time of each injector are dynamically changed in the three stages, and the total injection quantity will meet the requirements of a wide range of engine speed; the patent The disadvantage is that it cannot automatically judge whether the injector is blocked, so that the engine can be switched urgently when the nozzle is blocked, so as to ensure the smooth operation of the engine
This type of sensor is not very sensitive to temperature changes, and it is easy to be oxidized in a high temperature environment for a long time, making the temperature sensing performance more and more blunt
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Embodiment 1
[0019] Embodiment 1. A dual-nozzle fuel system with a temperature sensor, including: a high-pressure fuel pipe 1, a first solenoid valve 2, a fuel return pipe 3, a second solenoid valve 4, a high-pressure liquid storage tank 5, a return pipe 6, and a first return manifold Pipe 7, third solenoid valve 8, first oil return manifold 9, first injector 10, fourth solenoid valve 11, first feed manifold 12, second feed manifold 13, fifth solenoid valve 14. The second fuel injector 15, the second oil return manifold 16, the sixth solenoid valve 17, the second return manifold 18, the temperature sensor 19, the feed manifold 20, the seventh solenoid valve 21, the controller 22, the Eight electromagnetic valves 23, a first oil inlet pipe 24, a thermoelectric power generation sheet 25, and a second oil inlet pipe 26.
Embodiment 2
[0020]Embodiment 2. A dual-nozzle fuel system with a temperature sensor, including a high-pressure fuel pipe 1, a first solenoid valve 2, a fuel return pipe 3, a second solenoid valve 4, a high-pressure liquid storage tank 5, a return pipe 6, and a first return manifold 7. The third solenoid valve 8, the first oil return manifold 9, the first injector 10, the fourth solenoid valve 11, the first feed manifold 12, the second feed manifold 13, the fifth solenoid valve 14 , the second fuel injector 15, the second oil return manifold 16, the sixth solenoid valve 17, the second return manifold 18, the temperature sensor 19, the feed manifold 20, the seventh solenoid valve 21, the controller 22, the eighth Solenoid valve 23, first oil inlet pipe 24, thermoelectric power generation sheet 25, second oil inlet pipe 26; wherein: one side of high-pressure oil pipe 1 is connected with one end of second oil inlet pipe 26 and one end of first oil inlet pipe 24 respectively from left to right ...
Embodiment 3
[0021] Embodiment 3, a dual-nozzle fuel system with temperature sensors, wherein a carbon depositcleaning agent is placed in the high-pressure liquid storage tank 5 . All the other are with embodiment 1 or 2.
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Abstract
The invention discloses a twin-jet-nozzle fuel system with a temperature sensor and a sensor manufacturing process of the twin-jet-nozzle fuel system. A first solenoid valve is arranged on one side, close to a high-pressure oil pipe, of a second oil inlet pipe; an eighth solenoid valve is arranged on one side, close to the high-pressure oil pipe, of a first oil inlet pipe; a first oil atomizer is arranged at the remaining end of the second oil inlet pipe; a second oil atomizer is arranged at the remaining end of the first oil inlet pipe; the part, between the first solenoid valve and the first oil atomizer, of the second oil inlet pipe is connected with one end of a first feeding divided manifold; and the other end of the first feeding divided manifold is connected with one side of a feeding header pipe. The condition that oil atomizers are blocked, and consequently engine work is influenced happens frequently; by means of the twin-jet-nozzle fuel system and the sensor manufacturing process, the blocked oil atomizers can be replaced, and operation is more convenient and intelligent; and meanwhile, the sensitivity of the sensor is effectively improved through the sensor manufacturing process.
Description
technical field [0001] The invention relates to a fuel supply system for a diesel engine, in particular to a dual-nozzle fuel system with a temperature sensor. [0002] The invention also relates to a manufacturing process of the temperature sensor of the dual-nozzle fuel system with the temperature sensor. Background technique [0003] Chinese Patent Publication No. CN204003125U, authorized announcement date 2014.12.10, the name of the invention patent is a dual injector three-stage fuel injection system based on fuel demand and available fuel injection time. Double injector three-stage fuel injection system with fuel injection timing, including electronic control unit (1), small injector (2), large injector (3), crankshaftposition sensor (4), intake pressure Sensor (5), throttleposition sensor (6), trigger signal gear plate (7), internal combustion engine (8); small fuel injector (2) and large fuel injector (3) are installed near the engine intake The position of the d...
Claims
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Application Information
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