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Alcohol-based fuel system and cold-start device thereof

An alcohol-based fuel, cold start technology, applied in the direction of charging system, liquid fuel feeder, engine components, etc., can solve the problem that methanol is not easy to start

Pending Publication Date: 2018-04-20
CHONGQING DAWEI ENERGY CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art, to provide a kind of shortcoming that can overcome the difficult start of methanol at low temperature, to ensure the alcohol-based fuel system and its cold start that the engine can start normally in low temperature weather device

Method used

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  • Alcohol-based fuel system and cold-start device thereof
  • Alcohol-based fuel system and cold-start device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] figure 1 A schematic structural diagram of the cold starting device 10 is shown.

[0031]The cold start device 10 is applied to the alcohol-based fuel system 1 as an auxiliary device when an engine using alcohol-based fuel is started at a low temperature. Adding the cold start device 10 provides the engine with gasified oil, thereby increasing the content of oil and gas in the engine, making the ignition of the engine easier and reducing the cold start time of the engine. The cold start device 10 includes a cold start oil tank 101 , an oil and gas generator 102 , a temperature sensor 103 and a solenoid valve 104 . The cold start tank 101 supplies fuel to the engine through the fuel rail 20 .

[0032] The cold start oil tank 101 is a container for the cold start device 10 to hold oil, and the oil in the cold start oil tank 101 is the same as the oil in the main oil tank. In this embodiment, the cold start device 10 is applied to a methanol-gasoline mixed alcohol-based...

Embodiment 2

[0046] figure 2 A schematic structural view of the alcohol-based fuel system 1 is shown.

[0047] This embodiment provides an alcohol-based fuel system 1, which includes a fuel rail 20, a fuel tank 30 and the cold start device 10 of Embodiment 1. The fuel tank 30 is arranged on the fuel rail 20 , and the gas in the cold start fuel tank 101 flows to the fuel rail 20 through the solenoid valve 104 to mix with the oil in the fuel tank 30 .

[0048] Alcohol-based fuel is contained in the fuel oil tank 30, and alcohol-based fuel is exactly the fuel that uses alcohols (such as methanol, ethanol, butanol, etc.) to configure gasoline or diesel oil. The alcohol-based fuel in this embodiment is methanol gasoline, and the alcohol-based fuel system 1 supplies methanol gasoline to the engine. When the engine is cold started, it is difficult to start the methanol gasoline, so a cold start device 10 is added to the alcohol-based fuel system 1 to assist the engine start. Methanol gasoline...

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Abstract

The invention relates to a cold-start device applied to an alcohol-based fuel system and further provides the alcohol-based fuel system. The cold-start device comprises a cold-start oil tank, an oil gas generator, a temperature sensor and an electromagnetic valve; the cold-start oil tank supplies oil to an engine through a fuel oil rail; the electromagnetic valve is arranged on the fuel oil rail and used for controlling connecting and disconnecting of the fuel oil rail; the oil gas generator is arranged in the cold-start oil tank; the temperature sensor is used for sensing the temperature of the engine; and when the temperature sensed by the temperature sensor is lower than a first preset value, the temperature sensor controls the electromagnetic valve to be opened, and oil gas in the cold-start oil tank is sucked in by the engine to be mixed with alcohol-based fuel for burning, and when the temperature sensed by the temperature sensor is higher than a second preset value, the temperature sensor controls the electromagnetic valve to be closed. According to the alcohol-based fuel system and the cold-start device of the alcohol-based fuel system, an oil pump is not needed in cold start, the product is the oil gas, and cold-start mode switching is not needed; and according to the alcohol-based fuel system and the cold-start device of the alcohol-based fuel system, the engine can be started normally at the low temperature.

Description

technical field [0001] The invention relates to the field of oil supply equipment, in particular to an alcohol-based fuel system and a cold start device thereof. Background technique [0002] Engine cold start (cold-start) means that the engine has been shut down for a period of time from the last time, and the engine starts when its internal temperature is consistent with the ambient temperature. Corresponding to it is engine hot start, which means that the engine is started when there is still a relatively high residual temperature inside the engine not long after it was shut down last time. [0003] A cold engine start is more difficult than a hot start, especially when the ambient temperature is very low. Because the internal temperature of the engine is too low during cold start, the fuel is not easy to vaporize. In addition, the lubricating oil inside the engine may be in a solidified or precipitated state during a cold start, resulting in poor lubrication of individ...

Claims

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Application Information

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IPC IPC(8): F02N19/00F02M37/00
CPCF02M37/0023F02M37/0082F02N19/00
Inventor 任建伟
Owner CHONGQING DAWEI ENERGY CHEM
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