A pre-heating system for reducing cold-start emissions of motor vehicles

A technology for pre-heating and motor vehicles, applied in the charging system, engine starting, machine/engine, etc., can solve the problems of high harmful emissions of motor vehicles, low conversion efficiency, longer quenching distance, etc., to reduce emissions and lubricate Good, reduce friction loss effect

Inactive Publication Date: 2016-04-20
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The research on engine combustion and emission control technology shows that: during the cold start and warm-up process of the engine, poor atomization and ignition difficulties caused by low fuel temperature, low cylinder wall temperature cause longer quenching distance, and poor lubrication caused by low oil temperature , Increased resistance, low conversion efficiency due to low temperature of the exhaust after-treatment device is the reason for the high harmful emissions of motor vehicles in this process

Method used

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  • A pre-heating system for reducing cold-start emissions of motor vehicles
  • A pre-heating system for reducing cold-start emissions of motor vehicles

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Embodiment Construction

[0024] figure 1 It is an overall schematic diagram of the present invention.

[0025] The invention consists of a small burner for a vehicle, an engine cooling water heat exchanger, an engine oil heat exchanger, a fuel oil supply heat exchanger, a burner controller and related pipeline circuits and other components. The fuel tank 8 and the fuel pump 7 are original equipment of the motor vehicle. The fuel tank 8 is used to store fuel, and the fuel pump 7 is used to supply fuel with a certain pressure. The fuel pump 7 supplies fuel to the engine on the existing motor vehicle, and in the present invention is connected with the small burner 5 for the vehicle at the same time, and is used to supply fuel to the small burner 5 for the vehicle. The small burner 5 for the vehicle is connected with the burner controller 6 by a circuit, and the burner controller 6 is used to control the small burner 5 for the vehicle. The control method and strategy will be introduced later. The burnt ...

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Abstract

The invention discloses a preheating system for reducing cold start emission of a motor vehicle and belongs to the technical field related to automobile engines and accessories thereof. The system mainly comprises an automobile small-sized burner, a heat exchanger which has a heat exchange relationship with pipelines such as a cooling water pipeline, an engine oil pipeline and a fuel supply pipeline, a pipeline loop, air inlet and exhaust and fuel supply pipelines of the automobile small-sized burner, a controller and the like. The preheating system for reducing cold start emission of the motor vehicle has the advantages that after the system is additionally installed, the emission of the motor vehicle during cold start is reduced, the engine heating process is shortened, the emission of harmful gas produced at the stage is reduced and the low-temperature wear of the engine is relieved.

Description

technical field [0001] The invention aims to use a small burner for vehicles to heat the cooling water, engine oil, fuel supply system and exhaust after-treatment equipment of the vehicle engine in advance before the cold start of the motor vehicle, thereby reducing the time spent on the cold start and warm-up stages of the engine. Discharge and reduce the low-temperature wear of the engine; it belongs to the technical field related to the vehicle engine and its accessories. Background technique [0002] The background technology related to the present invention mainly includes two aspects of engine cold start preheating device and engine combustion and emission control technology. [0003] The engine cold start preheating device refers to the device that improves the success rate of ignition inside the cylinder by heating the intake air, fuel, cooling water, engine oil, etc. before or during the cold start of the engine, and assists the vehicle to start. This type of devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N19/10F01M5/02F02M31/16
Inventor 姚宝峰张红光王欣
Owner BEIJING UNIV OF TECH
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