Cold starting system of alcohol fuel engine

An alcohol-based fuel, cold start technology, applied in combustion engines, internal combustion piston engines, charging systems, etc., can solve problems such as inability to preheat the engine, difficult flange configuration, and long heating time.

Inactive Publication Date: 2014-12-24
谢志焱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. The electric heating line is used to heat the fuel distributor, and the heating line is used to start. This method cannot preheat the engine, but can only heat the fuel in the fuel rail, but it does not achieve cold start at all. In addition, the heating time is long, which consumes a lot of electricity in the battery, and the electricity in the battery will be used up after a long time.
Adding flanges to install fuel injectors and refitting the vehicle into a dual-track dual-injection type is the most advanced cold start device at present, but there are many complicated problems. Many car en

Method used

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  • Cold starting system of alcohol fuel engine
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Embodiment 1

[0027] according to figure 1 As shown, the cold start system of the alcohol fuel engine of the present embodiment is illustrated, including an alcohol fuel supply system, a cold start auxiliary fuel supply system, an oil rail, a control system and a tee; the oil rail adopts an existing common oil rail That's it. The alcohol fuel supply system includes a fuel tank I, an alcohol oil pump, an oil inlet pipeline, an oil return pipeline, and a one-way valve I. The alcohol oil pump is fixed in the fuel tank I, and the inlet of the oil inlet pipeline is connected to the alcohol oil pump. connected, the outlet of the oil return line communicates with the oil tank I, and the one-way valve I is connected to the oil inlet line. The outlet of the oil inlet pipeline and the inlet of the oil return pipeline are both communicated with a port of the oil rail through the tee; The outlet of the pipeline is connected with the inlet of the oil return pipeline. The cold start auxiliary fuel sup...

Embodiment 2

[0029] The difference between this embodiment 2 and embodiment 1 is that no tee is used, and an improved oil rail is adopted, such as figure 2 shown. The improved oil rail is an improved design of the port of the existing oil rail that communicates with the oil inlet pipeline and the oil return pipeline. The entrance is connected. Realize the oil inlet method of quick connection of two inlets and one outlet of oil rail.

[0030] The principle of the cold start system of the alcohol fuel engine of the above-mentioned embodiment 1 and embodiment 2 is as follows:

[0031] At low temperature, use the electronic controller in the control system to turn on the cold start auxiliary fuel supply system, that is, turn the switch of the electronic controller to the auxiliary fuel mode (gasoline mode), and at the same time control the delay breaker to turn on the alcohol fuel supply system. The solenoid valve on the oil return line in the engine performs a time-delayed closing control...

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Abstract

The invention provides a cold starting system of an alcohol fuel engine. The cold starting system comprises an alcohol fuel supplying system, a cold starting fuel supplying system, an oil track and a control system. The cold starting fuel supplying system is communicated with one end opening of the oil track. The alcohol fuel supplying system comprises an oil inlet pipeline and an oil returning pipeline which are both communicated with the other end opening of the oil track. The control system controls opening of the alcohol fuel supplying system or the cold starting fuel supplying system and controls delaying closing of the oil retuning pipeline in the alcohol fuel supplying system when the cold starting fuel supplying system is opened. The oil inlet mode of the oil track is designed to be a two-in-one-out oil opening quick-connecting mode, the control system is used for carrying out delaying control over the oil returning pipeline, all alcohol fuel in the oil track flows back out of the oil track quickly, it can be ensured that all fuel is gasoline for starting the vehicle, mounting is quick, cost is low, production is easy, the engine is not modified, and the worldwide problem of alcohol fuel vehicle cold starting is completely solved.

Description

technical field [0001] The invention relates to the technical field of alcohol fuel engines, in particular to a cold start system for alcohol fuel engines. Background technique [0002] As we all know, methanol energy is the best substitute for automobile energy, but the combustion of methanol in automobiles has not been greatly promoted under the current technical premise, because methanol has a low ignition point, and at low temperatures, single-burning methanol is not easy to catch fire, and it is difficult to start the engine , so left lead to methanol cars can not be widely promoted. Cold start is an obstacle to the development of methanol vehicles, so solving the cold start of methanol vehicles is a top priority. [0003] At present, there are several ways to solve the cold start of alcohol fuel engines: [0004] 1. Add a certain proportion of gasoline and additives to alcohol fuels. However, the addition of gasoline and additives can cause impurities in the crude o...

Claims

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Application Information

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IPC IPC(8): F02D19/06F02D41/06F02M21/02F02M37/04
CPCY02T10/30
Inventor 谢志焱
Owner 谢志焱
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