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Automobile dual-fuel supply system based on single fuel rail and single fuel injector set

A supply system and fuel injector technology, applied in the direction of charging system, liquid fuel feeder, machine/engine, etc., can solve the problems affecting the performance of the fuel supply system, the injection direction cannot be optimized, and the design of the injection direction is difficult, etc. Achieve the effects of eliminating vibration and flameout, saving design cycle and cost, and solving cold start difficulties

Active Publication Date: 2012-07-18
武汉菱电汽车电控系统股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Because there are two oil rails and two sets of injectors, it not only takes up a lot of space, but also has high production costs;
[0006] 2. Two sets of injectors make it difficult to design the injection direction. If one injection direction is designed to be the best, the other injection direction will not be optimal, which will affect the performance of the fuel supply system;
[0007] 3. For fuel injectors that provide methanol fuel, the nozzles will be blocked frequently due to the viscosity of methanol
[0008] 4. Due to the high ignition point of methanol, it is difficult to start at low temperature

Method used

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  • Automobile dual-fuel supply system based on single fuel rail and single fuel injector set
  • Automobile dual-fuel supply system based on single fuel rail and single fuel injector set
  • Automobile dual-fuel supply system based on single fuel rail and single fuel injector set

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0032] 1. Overall structure

[0033] Such as figure 1 , the system consists of methanol fuel tank 1, methanol pump 2, methanol pressure regulator 3, solenoid valve 4, oil rail 5, fuel injector 6, methanol check valve 7, three-way valve 8, gasoline check valve 9, gasoline Composed of a pressure regulator 10, a gasoline pump 11, a gasoline fuel tank 12, an engine 13 and an electronic control unit (ECU) 14;

[0034] 1. Gasoline fuel supply unit

[0035] A gasoline pump 11 and a gasoline pressure regulator 10 are arranged in the gasoline fuel tank 12;

[0036] The gasoline fuel tank 12, the gasoline pump 11, the gasoline pressure regulator 10, the gasoline check valve 9, the three-way valve 8, the oil rail 5, the fuel injector 6 and the engine 13 are sequentially connected to form a gasoline fuel supply unit, which is independently supplied to the engine 13. gasoline fuel.

[0037] 2. M...

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PUM

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Abstract

The invention discloses an automobile dual-fuel supply system based on a single fuel rail and a single fuel injector set, which relates to automobile fuel supply systems. The system is structurally characterized in that a gasoline fuel tank, a gasoline pump, a gasoline pressure adjustor, a gasoline one-way valve, a three-way valve, a fuel rail, a fuel injector and an engine are sequentially connected to form a gasoline fuel supply unit, a methanol fuel tank, a methanol pump, a methanol pressure adjustor, a methanol one-way valve, a three-way valve, the oil rail, the fuel injector and the engine are sequentially connected to form a methanol fuel supply unit, and an electronic control unit is respectively connected with two sensors and four executive parts to realize control and switching from the gasoline fuel supply unit to the methanol fuel supply unit. By means of the automobile dual-fuel supply system, high power performance, fuel economy, environment-friendliness in discharge and safety and reliability in control can be obtained.

Description

technical field [0001] The invention relates to an automobile fuel supply system, in particular to an automobile dual fuel supply system based on a single fuel rail and a single set of fuel injectors. Background technique [0002] In the 21st century, human beings are facing the crisis of energy shortage and environmental pollution. With the rapid increase of the number of automobiles and the consumption of petroleum resources worldwide, the contradiction between supply and demand of petroleum continues to intensify. In order to fundamentally solve the problem, it is necessary to carry out comprehensive management; the use of alternative fuels is an effective method, and the application of methanol as an alternative fuel for vehicles is one of the current research topics. [0003] In order to fundamentally solve the problems of energy shortage and environmental pollution, a fuel supply system scheme for gasoline and methanol dual-fuel engines was proposed, which realized th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/00F02M37/00
Inventor 王和平周良润
Owner 武汉菱电汽车电控系统股份有限公司
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