CN202673417U - Tail gas processing urine pump for diesel engine - Google Patents
Tail gas processing urine pump for diesel engine Download PDFInfo
- Publication number
- CN202673417U CN202673417U CN2012201114311U CN201220111431U CN202673417U CN 202673417 U CN202673417 U CN 202673417U CN 2012201114311 U CN2012201114311 U CN 2012201114311U CN 201220111431 U CN201220111431 U CN 201220111431U CN 202673417 U CN202673417 U CN 202673417U
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- China
- Prior art keywords
- pump
- urea
- bearing
- motor
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to the technical field of diesel engines, in particular to a tail gas processing urine pump for a diesel engine. The tail gas processing urine pump is mainly composed of a motor, an eccentric wheel, a connection rod, a bearing, a membrane, a pump body, a valve seat, a valve cover, a valve sheet, a rear cover, a rear cover bearing and a fixed screw. A motor output shaft is fixedly connected with the eccentric wheel, the excircle of the eccentric wheel is connected with an inner ring of the bearing, the excircle of the bearing is connected with the connection rod fixedly connected with the membrane, and a reciprocating mechanism is formed. The front end of the motor is fixedly connected with the pump body, the rear end of the pump body is provided with the bearing, a pump rear cover is fixed on the pump body, screw holes for fixing the membrane and the pump cover are arranged at the upper end of the pump body, the valve seat provided with an arc pump cavity is installed on the membrane, and the rectangular valve sheet used for controlling flowing in and flowing out of water is arranged in the valve seat. The tail gas processing urine pump for the diesel engine is simple in structure, small in size, flexible in volume control, convenient to use, low in cost and the like. In addition, the tail gas processing urine pump does not need lubricating during operation.
Description
Technical field
The utility model relates to the diesel engine technologies field, and particularly tail gas processing system of diesel engine provides the urea pump of quantitative urea-spray.
Background technique
Existing diesel engine self-technique improves and can't reach the vent gas treatment emission standard of rules and regulations, therefore must increase in addition a cover system, urea and tail gas is fully reacted, to reach the emission standard that meets rules; In the outlet pipe transducer, spray urea because the urea discharging needs high pressure, a quantitative power source, and global technology can't reach this requirement at present, affects the development of diesel car industry.
The model utility content
The purpose of this utility model is: a kind of diesel motor exhaust of model utility is processed urea pump, can reach the purpose that high pressure, quantitative injection urea are provided to tail gas processing system of diesel engine, its shape is small and exquisite, simple in structure, need not to lubricate, easy for installation, long service life, control is simple, and is applicable to the urea pump of various tail gas processing system of diesel engines.
To achieve these goals, the technological scheme that adopts of the utility model is:
The tail gas processing system of diesel engine urea pump comprises engine control module, and engine control module is electrically connected with electric machine controller by the pwm signal guide line, and electric machine controller is electrically connected with urea pump; Utilize the pwm signal of motor car engine ECM, by the motor controller controls motor speed, control the flow of urea pump.
Described urea pump comprises by motor, eccentric wheel, connecting rod and bearing, diaphragm, the pump housing, valve seat, valve gap, valve block, bonnet and bonnet bearing and retaining screw, described motor output shaft is fixedly connected with eccentric wheel, described eccentric wheel cylindrical is connected with bearing inner race, bearing top circle is connected with connecting rod, connecting rod is fixedly connected with diaphragm, form reciprocating mechanism, the front end of motor is fixedly connected with the pump housing, the rear end of the pump housing is provided with bearing, pump postoperculum is fixed on the pump housing, be provided with the fixedly screw hole of diaphragm and pump cover in the upper end of the pump housing, be equiped with the valve seat of arc pump chamber on the diaphragm, be provided with the rectangular valve block for the control water inlet and outlet in the described valve seat, described valve seat is provided with valve gap, corresponding valve seat is put the valve block place and is provided with rectangular slot on the valve gap, is provided with water intake and water outlet two holes that urea is flowed in the pump head of sealing in the rectangular slot.
Urea pump is provided with the valve seat assembly.
Urea pump is provided with connecting rod ASSY.
Valve block is the valve block that the intake-outlet valve block is integrated.
Urea pump is provided with the anti-leak passage, prevents that urea is leaked to the pump outside.
Advantage of the present utility model and beneficial effect: by the motor driving eccentric wheel, and the connecting rod that drive is contained on the eccentric wheel upper bearing (metal) moves reciprocatingly in the pump housing, and then the band dynamic diaphragm moves reciprocatingly in the valve seat arc-shaped cavity, urea is flowed into by the water intake on the valve gap, spray by water outlet again, rotating speed by the control motor can satisfy different emitted doses, and motor speed is controlled by pwm signal.The utlity model has simple in structurely, the time need not to lubricate in operation, volume is little, and flow control is flexible, and is easy to use, low cost and other advantages.
Description of drawings
Fig. 1 is general assembly perspective view of the present utility model;
Fig. 2 is the D-D sectional structure schematic diagram of Fig. 3;
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2;
In the drawings,
1, motor 2, connecting rod 3, eccentric wheel 4, eccentric wheel retaining screw 5, connecting rod bearing 6, diaphragm 7, valve gap 8, little o type circle 9, valve seat 10, valve block 11, bonnet 12, bonnet bearing 13, pump housing retaining screw 14, pump head retaining screw 15, bonnet retaining screw 16, the pump housing 17, large O type circle.
Embodiment
In conjunction with Fig. 1-3, for a kind of diesel motor exhaust is processed the urea pump structural representation, the tail gas processing system of diesel engine urea pump, comprise engine control module ECM (Engine ControlModule), engine control module is electrically connected with electric machine controller by the pwm signal guide line, and electric machine controller is electrically connected with urea pump; Utilize the PWM(pulse duration modulation of motor car engine ECM) signal, by the motor controller controls motor speed, control the flow of urea pump.
In the drawings, described motor 1 drives eccentric wheel 3 by motor output shaft and is contained in connecting rod bearing 5 runnings on the eccentric wheel 3, the connecting rod 2 that utilizes the offset of eccentric wheel 3 to make to be contained on connecting rod bearing 8 cylindricals drives to do in the arc-shaped cavity of diaphragm 6 between the upper-end surface of the pump housing 16 and the valve seat on it 9 that is contained on the connecting rod 2 and pumps, in the process of connecting rod 2 operation downwards, the water intake of urea by valve gap 7 flows into and is contained in valve block 10 places on the valve seat 9, and back down valve block 10.1 positions, flow in the arc-shaped cavity of diaphragm 6 motions, this moment, connecting rod moved upward, the urea that flows into is upwards pushed up, valve block 10.1 positions are held out against can't flow out, and valve block 10.2 positions are backed down, flow of urea to the valve gap 7 water outlet and go out.Go round and begin again, make the urea continuous injection.
Described diaphragm 6 is to utilize rubber to be basic unit, with surface that urea contacts on compound one deck tetrafluoro rubber.Make the longer service life of urea pump, and improve the outlet pressure of urea pump.
Described motor 1 adopts brshless DC motor, utilizes the rotating speed of pwm signal control motor 1, and the flow of urea pump water outlet is changed, and adapts to the urea injecting quantity of diesel engine under the different rotating speeds operating mode.
Described urea pump is established a pump postoperculum bearing 12 in bonnet 11 is, make the urea pump operation more steady.
Claims (6)
1. diesel motor exhaust is processed urea pump, it is characterized in that: comprise engine control module, engine control module is electrically connected with electric machine controller by the pwm signal guide line, and electric machine controller is electrically connected with urea pump; Utilize the pwm signal of motor car engine ECM, by the motor controller controls motor speed, control the flow of urea pump.
2. diesel motor exhaust according to claim 1 is processed urea pump, it is characterized in that: described urea pump comprises by motor, eccentric wheel, connecting rod and bearing, diaphragm, the pump housing, valve seat, valve gap, valve block, bonnet and bonnet bearing and retaining screw, described motor output shaft is fixedly connected with eccentric wheel, described eccentric wheel cylindrical is connected with bearing inner race, bearing top circle is connected with connecting rod, connecting rod is fixedly connected with diaphragm, form reciprocating mechanism, the front end of motor is fixedly connected with the pump housing, the rear end of the pump housing is provided with bearing, pump postoperculum is fixed on the pump housing, be provided with the fixedly screw hole of diaphragm and pump cover in the upper end of the pump housing, be equiped with the valve seat of arc pump chamber on the diaphragm, be provided with the rectangular valve block for the control water inlet and outlet in the described valve seat, described valve seat is provided with valve gap, and corresponding valve seat is put the valve block place and is provided with rectangular slot on the valve gap, is provided with water intake and water outlet two holes that urea is flowed in the pump head of sealing in the rectangular slot.
3. diesel motor exhaust according to claim 2 is processed urea pump, and it is characterized in that: urea pump is provided with the valve seat assembly.
4. diesel motor exhaust according to claim 2 is processed urea pump, and it is characterized in that: urea pump is provided with connecting rod ASSY.
5. diesel motor exhaust according to claim 2 is processed urea pump, and it is characterized in that: valve block is the valve block that the intake-outlet valve block is integrated.
6. diesel motor exhaust according to claim 2 is processed urea pump, and it is characterized in that: urea pump is provided with the anti-leak passage, prevents that urea is leaked to the pump outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201114311U CN202673417U (en) | 2012-03-22 | 2012-03-22 | Tail gas processing urine pump for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201114311U CN202673417U (en) | 2012-03-22 | 2012-03-22 | Tail gas processing urine pump for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673417U true CN202673417U (en) | 2013-01-16 |
Family
ID=47494326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201114311U Withdrawn - After Issue CN202673417U (en) | 2012-03-22 | 2012-03-22 | Tail gas processing urine pump for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673417U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321728A (en) * | 2012-03-22 | 2013-09-25 | 浙江卡韦德新能源科技有限公司 | Urea pump for treating tail gas of diesel engine |
| CN107246376A (en) * | 2017-07-12 | 2017-10-13 | 浙江卡韦德新能源科技有限公司 | Diesel motor exhaust handles the diaphragm assembly of urea pump |
| CN107524585A (en) * | 2017-07-12 | 2017-12-29 | 浙江卡韦德新能源科技有限公司 | Diesel motor exhaust handles electromagnetism urea pump |
| CN108521784A (en) * | 2017-09-28 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Pump installation and plant protection drone with it |
-
2012
- 2012-03-22 CN CN2012201114311U patent/CN202673417U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321728A (en) * | 2012-03-22 | 2013-09-25 | 浙江卡韦德新能源科技有限公司 | Urea pump for treating tail gas of diesel engine |
| CN103321728B (en) * | 2012-03-22 | 2015-04-15 | 浙江卡韦德新能源科技有限公司 | Urea pump for treating tail gas of diesel engine |
| CN107246376A (en) * | 2017-07-12 | 2017-10-13 | 浙江卡韦德新能源科技有限公司 | Diesel motor exhaust handles the diaphragm assembly of urea pump |
| CN107524585A (en) * | 2017-07-12 | 2017-12-29 | 浙江卡韦德新能源科技有限公司 | Diesel motor exhaust handles electromagnetism urea pump |
| CN108521784A (en) * | 2017-09-28 | 2018-09-11 | 深圳市大疆创新科技有限公司 | Pump installation and plant protection drone with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20150415 |
|
| RGAV | Abandon patent right to avoid regrant |