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Method for heating fuel oil in oil atomizer through coil of oil atomizer of engine

A fuel injector and engine technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as difficult installation and complicated devices, and achieve the effect of fast response and high control precision

Inactive Publication Date: 2018-05-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for heating the fuel in the injector by using the self-contained coil of the injector to solve the problem of complex device and difficult installation when heating the fuel oil based on the heating resistance wire

Method used

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  • Method for heating fuel oil in oil atomizer through coil of oil atomizer of engine
  • Method for heating fuel oil in oil atomizer through coil of oil atomizer of engine

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Embodiment Construction

[0025] Describe technical scheme of the present invention in detail below in conjunction with accompanying drawing:

[0026] refer to figure 1 , the invention provides a method for heating the fuel in the fuel injector by using the coil of the engine fuel injector,

[0027] The control circuit for realizing the method of heating the fuel in the fuel injector by using the internal coil of the engine injector includes: PWM1 signal 1, 6 470 ohm in-line resistors, 3 photoelectric coupling chips (TLP250), 3 12V drive Power supply, 3 ground wires of 12V regulated power supply, 80V turn-on voltage 6, 3 100nF in-line capacitors, No. 1 MOS tube 9, No. 2 MOS tube 18, No. 3 MOS tube 27, PWM2 signal 10, 15V heating voltage 15, 2 diodes, PWM3 signal 20, fuel injector ground wire 28, 12V holding power supply 29, fuel injector 31.

[0028] The control circuit is mainly composed of three signal lines, the PWM1 signal line 1 is 80V turn-on voltage 6, which is used to control the fuel injecti...

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Abstract

The invention discloses a method for heating fuel oil in an oil atomizer through a coil of the oil atomizer of an engine. A control circuit comprises three signal lines, specifically, the PWM1 signalline is used for controlling the oil atomizer to spray oil when a 80V threshold voltage receives an oil spray trigger signal; the PWM2 signal line is used for controlling the fuel oil in the oil atomizer to be heated when a 15V heating voltage receives a heating signal; and the PWM3 signal line is a grounding line and used for controlling on or off of the whole control circuit by controlling on oroff of an oil atomizer ground wire. While the oil atomizer is closed, the oil atomizer is loaded with one voltage load far lower than the threshold voltage of the oil atomizer, and the fuel oil in the oil atomizer is rapidly heated through resistance of the coil of the oil atomizer; and besides, as the loaded voltage is far lower than the threshold voltage of the oil atomizer, the oil atomizer cannot leak oil under the action of oil pressure of a high-pressure oil track.

Description

technical field [0001] The invention relates to the field of engine fuel heating, in particular to a method for heating fuel in the fuel injector by using a coil provided with the fuel injector. Background technique [0002] In the cold winter, due to the low ambient temperature, it has a great impact on engine cold start and low-load operating conditions. In order to improve the combustion characteristics and emission characteristics of the engine in cold start conditions and low load conditions, it is necessary to install a fuel heating device. [0003] Fuel heating devices are generally divided into two categories. 1. Indirect heating of fuel by burning fuel to heat air or water; 2. Direct heating of fuel based on another new heating resistance wire. Traditional heaters based on burning oil are bulky and have a low heating rate. Because it is necessary to change the amount of fuel injected into the heater to change the temperature of the heated fuel, the control accura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M31/125F02M53/06
Inventor 朱昌吉朱延鑫贾江峰刘宇曲大为李君
Owner JILIN UNIV