Dual fuel injection system and dual fuel engine having same
A dual-fuel engine and injection system technology, applied to combustion engines, fuel injection devices, internal combustion piston engines, etc., can solve the problems of occupying installation space, complex structure of injection devices, and high manufacturing costs
Active Publication Date: 2020-06-26
WEICHAI POWER CO LTD
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[0004] The dual-fuel injection device in the prior art includes two sets of mechanisms, namely, a fuel supply mechanism and a gas supply mechanism. When supplying fuel, the two sets of mechanisms work together to realize the effective supply of fuel and gas to the combustion chamber. Among them, the fuel supply A set of electromagnetic components is set in the mechanism, a set of electromagnetic components is set in the gas supply mechanism, and the ECU (Electronic Control Unit, electronic control unit) of the vehicle controls two sets of electromagnetic components at the same time. This kind of injection device has a complex structure and high manufacturing cost. At the same time, Large size, occupying installation space
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[0030] 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.
[0031] Please refer to figure 1 with figure 2 , figure 1 Schematic diagram of the structure of the dual-fuel injection system provided for the present invention; figure 2 It is a structural block diagram of the dual fuel injection system provided by the present invention.
[0032] In a specific embodiment, the present invention provides a dual-fuel injection system, including a main control assembly 1 arranged on the oil retur...
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The invention discloses a dual-fuel injection system and a dual-fuel engine provided with same. The dual-fuel injection system comprises a master control assembly arranged on an oil return pipeline, afuel oil control assembly arranged on a high-pressure oil path and a fuel gas control assembly arranged on a high-pressure gas path, wherein the master control assembly comprises a reversing valve; the reversing valve separately communicates with the oil return pipeline, the fuel oil control assembly and the fuel gas control assembly; and the reversing valve can switch, so that the fuel gas control assembly communicates with the oil return pipeline or the fuel oil control assembly communicates with the oil return pipeline. In the dual-fuel injection system, a set of master control assembly supplies fuel oil and fuel gas at the same time through the reversing valve, so that the structure is simplified, and manufacturing cost is reduced; and the structure is simplified, so that the size isreduced, and mounting space occupied by the injection system is saved.
Description
technical field [0001] The invention relates to the technical field of engine fuel supply, in particular to a dual-fuel injection system for a dual-fuel engine. The invention also relates to a dual-fuel engine Background technique [0002] With the continuous consumption of petroleum resources and increasingly stringent engine emission regulations, the use of alternative fuels is an effective means to simultaneously solve the problems of energy shortage and environmental pollution faced by engine development. Natural gas and petroleum gas have become the main alternative fuels for engines due to their abundant resources, low price, clean combustion, and high calorific value. [0003] At present, the fuel supply method of the dual-fuel engine is to inject gas directly into the combustion chamber, and use a pilot amount of liquid fuel to trigger the combustion of the gas fuel to drive the engine to run. In the process of fuel supply to the engine, it is necessary to use a du...
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IPC IPC(8): F02M21/02F02M51/06F02D19/06F02D19/08
CPCY02T10/30
Inventor 谢凤徐帅卿耿成俭范委修王培起
Owner WEICHAI POWER CO LTD