Fuel control unit and control method for high-power diesel engine
A high-power diesel engine and fuel control technology, applied in engine control, fuel injection control, electrical control, etc., can solve the problems of complex shape structure, high manufacturing cost, and single function of emergency stop, and achieve simple and beautiful appearance and low manufacturing cost. , the effect of reducing the duration
Active Publication Date: 2019-12-20
CHONGQING WEICHAI ENGINE FACTORY +1
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Problems solved by technology
The disadvantage is that the structure is complex, there are many parts, the cost is high, and manual reset is required after parking
[0005] Although the existing low-speed oil limiting device and emergency stop device can realize relevant functions, both the low-speed oil limiting device and the emergency stop device have complex shapes and structures, high manufacturing costs, and single functions
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[0029] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.
[0030] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...
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The invention belongs to the technical field of diesel engine fuel control and regulation, and relates to a fuel control unit and control method for a high-power diesel engine. The fuel control unit comprise a joint body and a fuel cut control cylinder, wherein the joint body is provided with three interfaces; the three interfaces of the joint body are connected to an air filter, a fuel control air pipe and a fuel cut air pipe respectively; an electromagnetic valve is connected to the end, far away from the joint body, of each of the fuel control air pipe and the fuel cut air pipe; and air inlet pipes communicating with an air inlet of the fuel cut control cylinder are connected to the electromagnetic valves. The control unit is installed on the diesel engine, the quantity of fuel of a fuel injection pump can be adjusted, the quantity of fuel entering a combustion chamber can be controlled, and the functions of low-speed oil limiting and emergency stop of the diesel engine can be achieved.
Description
technical field [0001] The invention belongs to the technical field of diesel engine fuel control and adjustment, and relates to a high-power diesel engine fuel control device and a control method thereof. Background technique [0002] During the working process of the diesel engine, when the speed of the diesel engine is low, the intake air volume of the diesel engine is low. The working state has changed to the parking state, so it is very important to solve the problem of black smoke from the diesel engine at low speed and realize emergency stop. [0003] Existing diesel engine low-speed oil limiting devices such as figure 1 As shown, the serial number Ⅰ is the air pipe, the serial number Ⅱ is the pneumatic piston, the serial number Ⅲ is the baffle assembly, and the serial number Ⅳ is the mounting plate. Mounting plate IV is used to fix the low-speed oil limiting device on the diesel engine. The oil limiting device leads the intercooled pressurized air through the air p...
Claims
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IPC IPC(8): F02D41/04F02D41/30
CPCF02D41/042F02D41/30Y02T10/40
Inventor 刘志刚黄欣欣刘洋和晓锋
Owner CHONGQING WEICHAI ENGINE FACTORY