Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for reducing exhaust of vehicle at cold start

A sewage discharge device and cold start technology, which is applied in combustion engine, engine control, machine/engine, etc., can solve the problems such as failure to meet the requirements, and achieve the effect of reducing a large amount of sewage discharge, simple structure and reasonable design

Inactive Publication Date: 2005-05-11
SHANDONG UNIV
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the figure that the optimum operating temperature of the catalytic converter is between 250°C and 300°C, but in winter, the operating temperature when the car is started is far from the required 250°C above, which makes the three-way catalytic converter useless

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for reducing exhaust of vehicle at cold start
  • Method and device for reducing exhaust of vehicle at cold start
  • Method and device for reducing exhaust of vehicle at cold start

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: the structure of the present invention is as figure 1 with figure 2 As shown, it consists of a heater 1, an engine 2, a three-way catalytic converter 3, a temperature sensor 4, a controller 5, solenoid valves 6, 7, control wires 8, and connecting pipes 9. The heater 1 is connected to the engine through the connecting pipes 9. 2 communicate with the atmosphere, the connecting pipeline 9 communicating with the atmosphere is provided with a solenoid valve A, the connecting pipeline 9 communicating with the engine 2 is provided with a solenoid valve B, and the connecting pipeline 9 provided with the solenoid valve B is connected with the three-way catalytic converter 3 at the same time connected; the three-way catalytic converter 3 is provided with a temperature sensor 4; the controller 5 is connected to the solenoid valve A, the solenoid valve B and the temperature sensor 4 through the control wire 8 respectively.

[0025] The controller is composed of a s...

Embodiment 2

[0031] Embodiment 2: structure is the same as embodiment 1.

[0032] The method for reducing blowdown by the above-mentioned device is as follows:

[0033] 1. Before the engine 2 starts, the controller closes the solenoid valve A, opens the solenoid valve B, and the heater 1 works to increase the temperature of the cab space, the temperature of the engine body, the temperature of the cooling water, the temperature of the engine oil and the temperature of the three-way catalytic converter;

[0034] 2. The heater 1 works for 2 minutes and 30 seconds, the three-way catalytic converter reaches 280°C, the temperature sensor sends a signal to the controller 5, and the controller 5 sends an instruction to close the solenoid valve B and open the solenoid valve A at the same time, and start the engine 2.

[0035] 3. The engine 2 works, and the three-way catalytic converter 3 catalyzes the exhaust gas from the automobile.

Embodiment 3

[0036] Embodiment 3: structure is the same as embodiment 1.

[0037] The method for reducing blowdown by the above-mentioned device is as follows:

[0038]1. Before the engine 2 starts, the controller closes the solenoid valve A, opens the solenoid valve B, and the heater 1 works to increase the temperature of the cab space, the temperature of the engine body, the temperature of the cooling water, the temperature of the engine oil and the temperature of the three-way catalytic converter;

[0039] 2. The heater 1 works for 3 minutes, the three-way catalytic converter reaches 300°C, the temperature sensor sends a signal to the controller 5, and the controller 5 sends an instruction to close the solenoid valve B and open the solenoid valve A at the same time, and start the engine 2.

[0040] 3. The engine 2 works, and the three-way catalytic converter 3 catalyzes the exhaust gas from the automobile.

[0041] It has been verified by experiments that in the above examples, the con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An apparatus for lowering the cold start pollution of car is composed of heater, engine, three-element catalyzing unit, temp sensor on said catalyzing unit, controller, and electromagnetic valves A and B respectively for air inlet tube and catalyzing unit connecting tube. Its method includes such steps as closing electromagnetic valve A while opening B, starting heater to heat the catalyzing unit to 250-300 deg.C, closing valve B while opening A, starting engine and catalytic conversion of tail gas.

Description

(1) Technical field [0001] The invention relates to a system for reducing automobile exhaust emission, in particular to a device for reducing automobile cold start emission and a method for reducing emission. (2) Background technology [0002] With the deterioration of the earth's environment, the intensification of the greenhouse effect, and the proliferation of various diseases and natural disasters around the world, people have a higher and newer understanding of the importance of protecting the earth's environment. As far as the current urban environment is concerned, vehicle exhaust pollution has become the largest supplier of urban air pollution. Urban roads are narrow and air circulation is poor, which makes vehicle exhaust to a degree that must be treated. In developed countries, strict exhaust emission standards and regulations have long been implemented, and corresponding control measures have been implemented. my country's Beijing has also implemented a new emis...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00
CPCY02A50/20Y02T10/12
Inventor 李国祥毛华永刘海涛石秀勇胡云萍
Owner SHANDONG UNIV