Fuel supply system and method for engine

A technology of fuel supply and fuel system, which is applied in the direction of engine components, engine control, combustion engine, etc., can solve the problems of inability to guarantee the starting reliability of low-grade diesel oil and affect the customer's sense of use, so as to meet the smoothness and reliability and solve the problem Difficult start-up and improved economy

Inactive Publication Date: 2019-01-11
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

If the working time of the heating water cup is insufficient or the function fails, it will not be able to guarantee the starting reliability of low-grade diesel oil in low-temperature environments, which will ultimately affect the customer's sense of use

Method used

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  • Fuel supply system and method for engine
  • Fuel supply system and method for engine

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] figure 1 It is a schematic diagram of the system structure of the embodiment of the present invention. like figure 1 As shown, the fuel supply system for the engine in this embodiment includes the main fuel tank, the temperature monitoring unit of the main fuel tank, the external fuel supply control unit and the external fuel return control unit, the external fuel supply control unit and the external fuel return control uni...

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Abstract

The invention belongs to the technical field of engine fuel system, and particularly relates to a fuel supply system and method for an engine. The fuel supply system for the engine comprises a main oil tank, a main fuel tank temperature monitoring unit, an external connecting oil supply control unit and an external connecting oil returning control unit. The external connecting oil supply control unit and the external connecting oil returning control unit can be electrically connected to the main fuel tank temperature monitoring unit correspondingly, and the fuel supply system further comprisesan auxiliary fuel tank. First fuel oil is stored in the main fuel tank and an auxiliary heater for heating the first fuel oil is stored in the main fuel tank, secondary fuel is stored in the auxiliary fuel tank, and the external connecting fuel supply control unit can control the main fuel tank or the auxiliary fuel tank to supply fuel to the engine fuel system. According to the use of the fuel supply system and method, the problem of difficult start-up of an engine in low temperature environment can be effectively solved, the smooth start-up and reliability of the engine can be satisfied, and the economy of the use of a vehicle can be improved.

Description

technical field [0001] The invention belongs to the technical field of engine fuel systems, and in particular relates to a fuel supply system and a fuel supply method for engines. Background technique [0002] When the whole vehicle is running in a low temperature environment, due to the difference in fuel quality, the fuel will wax or flow poorly when the temperature is lower than the critical temperature, which will cause the low-pressure oil circuit of the engine to fail to supply fuel normally or start difficulties. [0003] In a low temperature environment, in order to improve the waxing problem of the engine fuel system, there are the following two methods on the market: [0004] 1. Use high-grade diesel oil with low waxing temperature (waxing temperature is lower than ambient temperature) and better quality; [0005] 2. Use low-grade diesel oil with waxing temperature and average quality, and add fuel water cold treasure to the engine at the same time. The fuel water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/00F02M31/16F02M31/125F02D19/06
CPCF02D19/0615F02D19/0628F02D19/0665F02M31/125F02M31/16F02M37/0064F02M37/0088Y02T10/30
Inventor 蔡君辉吴毓海毕来文孙世豪
Owner WEICHAI POWER CO LTD
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