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

Deflation emptying type urea system for throttle hole of pneumatic single urea box

A technology of urea tank and orifice, which is applied in the direction of exhaust treatment, exhaust device, engine components, etc., can solve the problems of battery power consumption, high price, complicated control, etc., and achieve the effect of reducing system cost

Inactive Publication Date: 2011-04-20
FAW GROUP
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mature urea solution supply and injection systems are all produced by foreign companies. Some adopt diaphragm pump structure, and some adopt gear pump structure. supplier
The traditional direct-spray SCR urea injection system has no precedent for emptying the urea pipeline with air, or the emptying process consumes a lot of air and the control is complicated. Therefore, in order to prevent the system from freezing, an electronically controlled pump is used to empty the system, so the system is complicated and costly. consume battery power

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
  • Deflation emptying type urea system for throttle hole of pneumatic single urea box
  • Deflation emptying type urea system for throttle hole of pneumatic single urea box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Below in conjunction with accompanying drawing, the present invention will be further described: as figure 1 Shown is a pneumatic single urea tank shut-off hole venting and emptying type urea system, which consists of urea solution filling port 1, urea tank 2, water heating pipeline 3, urea solution temperature and level signal 4, atmospheric temperature signal 5, SCR inlet temperature signal 6, NOx signal 7, urea tank pressure signal 10, ECU control signal A8, ECU control signal B9, ECU control signal C11, urea injector 12, urea injector cooling pipeline 13, urea tank heating control valve 16 , compressed gas control valve 14, compressed gas control valve 20, gas pipeline 15, atmospheric pipeline 19, cut-off hole 21, urea infusion tube 17, built-in or external urea liquid filter 18; urea is arranged on the urea tank Liquid filling port 1, temperature and liquid level sensor 4, urea tank pressure sensor 10, heating pipeline 3, compressed gas intake and exhaust passage ...

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

The invention relates to a deflation emptying type urea system for a throttle hole of a pneumatic single urea box, which is characterized in that a compressed air control valve is arranged in a compressed air pipeline between an automobile gas storage tube and a urea box; the throttle hole is arranged in a urea pipeline among the compressed air control valve and a build-in or a build-out urea filter and a urea nozzle, the build-in or build-out urea filter is arranged in a urea feeding pipeline between the urea box and a urea sprayer; ECU control signals A, ECU control signals B and ECU control signals C control the compressed air control valve and the urea sprayer. The system can reduce the cost, breaks the situation that the international supplier monopolizes the field, and fully plays the advantages of independent development.

Description

technical field [0001] The invention relates to a pneumatic single urea tank closure hole deflation and emptying type urea system. Background technique [0002] At present, the mature urea solution supply and injection systems are all produced by foreign companies. Some adopt diaphragm pump structure, and some adopt gear pump structure. supplier. The traditional direct-spray SCR urea injection system has no precedent for emptying the urea pipeline with air, or the emptying process consumes a lot of air and the control is complicated. Therefore, in order to prevent the system from freezing, an electronically controlled pump is used to empty the system, so the system is complicated and costly. Consumes battery power. Contents of the invention [0003] The purpose of the present invention is to provide a pneumatic single urea tank closure hole venting and emptying urea system, which reduces the cost, breaks the monopoly of international suppliers in this field, gives full p...

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): F01N3/24F01N9/00B01D53/94B01D53/56
CPCY02T10/47Y02A50/20Y02T10/40
Inventor 李骏邢喜春戈非
Owner FAW GROUP