Focusing on the core components of automotive intelligent control systems

Mainly engaged in the research and development, production, and sales of a series of products such as post-treatment supply systems, steering systems, engineering plastic products, metal structural components, and pipe fittings

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Focusing on the core components of automotive intelligent control systems

Mainly engaged in the research and development, production, and sales of a series of products such as post-treatment supply systems, steering systems, engineering plastic products, metal structural components, and pipe fittings

MORE +

Focusing on the core components of automotive intelligent control systems

Mainly engaged in the research and development, production, and sales of a series of products such as post-treatment supply systems, steering systems, engineering plastic products, metal structural components, and pipe fittings

MORE +
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HC injection system (DPM)

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Introduction Overview Function

 

Bosch's DPM system, including metering unit (MU) and injection unit (IU)

Comparative testing of HC injection system

In 2012, Tianxiong Company undertook and successfully completed the national "12th Five Year Plan" 863 project "Research and Industrialization of Key Technologies for Diesel Engine Aftertreatment System" and the major special project "Research and Industrialization of Urea SCR Additive Blue Supply and Control System for Diesel Engine" in Hubei Province. During this period, it acquired Bavarian Fluid Technology Company from Germany, fully mastering the core technology related to diesel engine exhaust aftertreatment. The mass-produced urea tank, cooling water solenoid valve, electromagnetic pump, liquid level sensor, and urea quality sensor have supplied more than one million sets to the market, and has been committed to the development of new products for National VI.

The fuel cut-off valve and metering unit used in this HC injection system are very similar to the coolant solenoid valve and urea metering injection valve in the SCR system currently produced by Tianxiong Company. Through comparative testing with Bosch's products, Tianxiong Company is fully capable of preparing alternative products with higher cost-effectiveness.

 

 

 

Comparison of Main Parameters and Performance of Fuel Shutoff Valve

 

bosch TSUNG
Working voltage

10~34V

10~34V

Flow

<25L/h

>40L/h

Peak start time

10ms

7ms

Closing time

100ms

76ms

 

Comparison of Main Parameters and Performance of Electromagnetic Injection Valves

 

bosch

TSUNG

24V system voltage range

17~34V

17~34V

Spray accuracy (0km)

±5%

±4%

Peak start time

3ms

3ms

Life 1 million times 150 million times

SMD(500kPa)

Spray valve outlet atomization>150u Spray valve outlet atomization reaches 100u


 

 

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