Spontaneous combustion type flame intake preheating system for diesel engine
A diesel engine and self-ignition technology, which is applied in mechanical equipment, engine components, engine starting, etc., can solve the problems that the cold start of the diesel engine cannot be guaranteed and the battery demand is high
Active Publication Date: 2021-05-04
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
[0005] In view of this, the present invention provides a self-ignition flame intake air preheating system for diesel engines, which can solve the problem that the existing air intake preheating system has a high demand on the battery, limited temperature rise and limited oxygen content, which makes the diesel engine run in an alpine environment. The problem that the normal cold start of the diesel engine cannot be guaranteed
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[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] In the present invention, the alpine environment refers to the occasions where the ambient temperature is equal to or lower than -20°C, such as: areas where the ambient temperature is -20°C, -25°C, -30°C, -35°C, -40°C, etc.
[0030] Such as figure 1 As shown in the structure, the present invention provides a self-ignition type flame intake air preheating system for diesel engines. Road 4, double oil circuit injector 5 and control unit 6; Control unit 6 can be ECU (Electronic Control Unit, electronic control unit);
[0031] Such as figure 1 As shown in the structure, spontaneous combustion fuel is stored in the fuel storage tank 1, and is communicated with a channel of the dual-oil injector 5 through the fuel delivery pipeline 2; The self-ignition fuel is pumped to the fuel pumping device 7 of the double-oil injector 5; the fuel pumping device 7 c...
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The invention discloses a spontaneous combustion type flame intake preheating system for a diesel engine. Spontaneous combustion fuel is stored in a fuel storage tank of the intake preheating system, and the fuel storage tank is communicated with one channel of a double-oil-way fuel injector through a fuel conveying pipeline; a fuel pumping device used for pumping spontaneous combustion fuel in the fuel storage tank to the double-oil-way fuel injector is installed in the fuel conveying pipeline; a strong oxidant is stored in an oxidant storage tank , and the oxidant storage tank is communicated with another channel of the double-oil-way fuel injector through an oxidant conveying pipeline; an oxidant pumping device for pumping a strong oxidant in the oxidant storage tank to the double-oil-way fuel injector is mounted in the oxidant conveying pipeline; the double-oil-way fuel injector is fixedly installed on an air inlet pipeline of the diesel engine and connected with a control unit through a relay; The control unit is used for controlling on-off of the double-oil-way oil sprayer and the intake preheating system can guarantee normal cold start of the diesel engine in the high and cold environment.
Description
technical field [0001] The invention relates to the technical field of a diesel engine cold start auxiliary system, in particular to a self-ignition flame intake preheating system for a diesel engine. Background technique [0002] In the alpine environment, since all parts of the diesel engine are in a cold state, the fit gap between the parts is larger than that under normal working conditions, resulting in excessive air leakage during the cold start process; and because The temperature of the inner wall of the cylinder itself is low, and the heat transfer loss is relatively large during the cold start of the diesel engine, so that the diesel engine only relies on the compression work of the piston to increase the temperature in the cylinder and it is difficult to reach the ignition temperature of the diesel spray, resulting in the failure of the cold start of the diesel engine. The cold start problem of diesel engine is one of the main reasons that limit its application fi...
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IPC IPC(8): F02N19/06F02N19/08
CPCF02N19/06F02N19/08
Inventor 黎一锴王东方史中杰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY