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CN102748104B - High-combustion-ratio environment-friendly non-road diesel engine - Google Patents

High-combustion-ratio environment-friendly non-road diesel engine Download PDF

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Publication number
CN102748104B
CN102748104B CN201210220534.6A CN201210220534A CN102748104B CN 102748104 B CN102748104 B CN 102748104B CN 201210220534 A CN201210220534 A CN 201210220534A CN 102748104 B CN102748104 B CN 102748104B
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CN
China
Prior art keywords
diesel engine
road
friendlynon
combustion
pipe
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Expired - Fee Related
Application number
CN201210220534.6A
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Chinese (zh)
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CN102748104A (en
Inventor
徐华登
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ZHEJIANG HUIHAO MACHINERY MANUFACTURING CO LTD
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ZHEJIANG HUIHAO MACHINERY MANUFACTURING CO LTD
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Publication of CN102748104A publication Critical patent/CN102748104A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Exhaust Gas After Treatment (AREA)

Abstract

The invention belongs to the technical field of power equipment, relates to a high-combustion-ratio environment-friendly non-road diesel engine, and solves the technical problems of irrational design and the like of the prior art. The high-combustion-ratio environment-friendly non-road diesel engine comprises a diesel engine main body, an air inlet pipe, an exhaust pipe and a turbocharger, wherein the air inlet pipe is connected with the diesel engine main body through the turbocharger and an air inlet processing pipeline in sequence; the exhaust pipe is connected between the diesel engine main body and the turbocharger; the turbocharger is provided with a urea solution injection mechanism which is communicated with the exhaust pipe; the urea solution injection mechanism is connected with a reaction tank; the turbocharger is also provided with an exhaust gas circulating pipe which is communicated with the exhaust pipe; and the other end of the exhaust gas circulating pipe is communicated with the gas inlet processing pipeline. The high-combustion-ratio environment-friendly non-road diesel engine has the advantages of high combustion ratio, less pollutant discharge, capability of effectively reducing energy loss, rational layout, compact structure, small occupied space, easiness in disassembly and assembly, high working stability, good sealing property and low use cost.

Description

High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine
Technical field
The invention belongs to technical field of power equipment, relate to diesel engine, especially relate to a kind of High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine.
Background technique
At present, a large amount of non-rice habitats diesel engine consume resource, discharge pollutant to environment create be difficult to estimate danger.In the combustion process of diesel engine, the temperature in cylinder is too high, is easy to form nitrogen oxide, discharged nitrous oxides, in air, when encountering strong ultraviolet, can generate chemical smoke, this chemical smoke can cause ocular pain, and serious also can cause expiratory dyspnea.The air that long-term breathing is polluted by nitrogen oxide and black smoke etc., easily brings the disease of respiratory apparatus.The pollutant of diesel engine is except carbon monoxide, nytron beyond the region of objective existence, mainly nitrogen oxide and particulate matter.By high-pressure common rail, the application improving the technology such as jet pressure and accurate control, the progress only according to diesel technology just can reach secondary discharge standard.But higher standard will be reached, the improvement only according to diesel technology is not much of that.The processing mode of diesel technology to these two kinds of major pollutants itself is contradiction, improve burning, raising temperature can control particulate matter, and nitrogen oxide can rise thereupon; Reduce temperature and can control nitrogen oxide, but cause the increase of particulate matter.Therefore can not complete task up to standard by the improvement of engine technology merely, must after-treatment device be used.
For this reason, people have carried out long-term exploration, propose various solution.Such as, Chinese patent literature discloses a kind of mechanical type exhaust gas recirculation valve [application number: 201120280152.3] being applicable to non-road supercharged diesel engine, has air pressure valve body, spool, relief opening flange, suction port flange.The left end inside of air pressure valve body has with spring; With spool on air pressure valve body; Outside valve block is had outside the right-hand member of spool; Inner side valve block is had inside the right-hand member of spool; Relief opening flange is housed between outer valves sheet and inner side valve block; Also with the suction port flange can installing air inlet tube on air pressure valve body.The size of EGR valve aperture is controlled by the size of charger boost pressure.Structure is simple, and economical and practical, effect is better.But although such scheme improves combustion efficiency to a certain extent, reduce pollution, still there is complex structure, oil consumption is higher, be difficult to reach the technical problems such as higher emission standard.
Summary of the invention
The object of the invention is for the problems referred to above, provide a kind of combustion efficiency of diesel oil high, pollutant emission is few, effectively reduces energy loss, High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine easy to implement.
For achieving the above object, present invention employs following technical proposal: this High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, comprise diesel engine main body, suction tude, outlet pipe and worm wheel pressure booster, described suction tude is connected with diesel engine main body with air inlet process pipeline by worm wheel pressure booster successively, described outlet pipe is connected between diesel engine main body and worm wheel pressure booster, it is characterized in that, described worm wheel pressure booster is provided with the urea solution jet mechanism be connected with outlet pipe, urea solution jet mechanism is connected with retort, described worm wheel pressure booster is also provided with the waste gas circulation pipe that one end is connected with outlet pipe, the other end of described waste gas circulation pipe is connected with air inlet process pipeline.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, described waste gas circulation pipe is provided with the first switching valve, and described air inlet process pipeline is provided with the second switching valve; Described waste gas circulation pipe is provided with supplementary cooler, and described air inlet process pipeline is provided with primary cooler.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, described urea solution jet mechanism comprises storage, jet pump and shower nozzle, described jet pump is communicated with the upper and lower of storage with second pipe respectively by the first pipeline, described shower nozzle is connected with jet pump by the 3rd pipeline, and described shower nozzle is fixed on the sidepiece of outlet pipe.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, described outlet pipe sidepiece is provided with the nozzle mounting seat be obliquely installed, and described nozzle mounting seat and the through and shower nozzle of outlet pipe are fixed in nozzle mounting seat by demountable structure.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, in the injection direction of described shower nozzle and outlet pipe, airflow direction forms angle, and the size of described angle is 30 °-60 °.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, liquid level sensor is provided with in described storage, heater, first temperature transducer and urea solution mass sensor, the outlet end of described retort is provided with NOx sensor and the second temperature transducer, the first described pipeline, second pipe and the 3rd pipeline are respectively equipped with the first solenoid valve, second solenoid valve and the 3rd solenoid valve, described liquid level sensor, heater, first temperature transducer, urea solution mass sensor, NOx sensor, second temperature transducer, first solenoid valve, second solenoid valve, 3rd solenoid valve, first switching valve is all connected with controller with the second switching valve.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, the 3rd described pipeline is provided with filter; The internal diameter of retort is greater than the internal diameter of outlet pipe; Sealing configuration is provided with between described shower nozzle and nozzle mounting seat.
In above-mentioned High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, described demountable structure comprises the handle be hinged on nozzle mounting seat, teeth are provided with in the end of handle, thread section is arranged with outside described shower nozzle, described teeth engage with thread section and teeth drive nozzle axis to filling in nozzle mounting seat by thread section when a handle is rotated, and described nozzle mounting seat inwall and shower nozzle periphery are respectively equipped with the plane of inclination for sealing.
Compared with prior art, the advantage of this High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine is: 1, reasonable in design, and structure is simple, and pollutant emission is few, effectively reduces energy loss.2, rationally distributed, compact structure, takes up room little.3, be easy to dismounting, good operating stability, there is good sealing, and user cost be lower.
Accompanying drawing explanation
Fig. 1 is structural representation provided by the invention.
In figure, diesel engine main body 1, suction tude 2, outlet pipe 3, worm wheel pressure booster 4, air inlet process pipeline 5, urea solution jet mechanism 6, storage 61, jet pump 62, shower nozzle 63, first pipeline 64, second pipe 65, 3rd pipeline 66, filter 67, retort 7, waste gas circulation pipe 8, first switching valve 9, second switching valve 10, supplementary cooler 11, primary cooler 12, nozzle mounting seat 13, liquid level sensor 14, heater 15, first temperature transducer 16, urea solution mass sensor 17, NOx sensor 18, second temperature transducer 19, first solenoid valve 20, second solenoid valve 21, 3rd solenoid valve 22, controller 23, handle 24, angle α.
Embodiment
As shown in Figure 1, this High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine comprises diesel engine main body 1, suction tude 2, outlet pipe 3 and worm wheel pressure booster 4.Suction tude 2 is connected with diesel engine main body 1 with air inlet process pipeline 5 by worm wheel pressure booster 4 successively, and outlet pipe 3 is connected between diesel engine main body 1 and worm wheel pressure booster 4.Worm wheel pressure booster 4 is provided with the urea solution jet mechanism 6 be connected with outlet pipe 3, urea solution jet mechanism 6 is connected with retort 7, described worm wheel pressure booster 4 is also provided with the waste gas circulation pipe 8 that one end is connected with outlet pipe 3, the other end of described waste gas circulation pipe 8 is connected with air inlet process pipeline 5.Waste gas circulation pipe 8 is provided with the first switching valve 9, and air inlet process pipeline 5 is provided with the second switching valve 10.Waste gas circulation pipe 8 is provided with supplementary cooler 11, and air inlet process pipeline 5 is provided with primary cooler 12.
Urea solution jet mechanism 6 comprises storage 61, jet pump 62 and shower nozzle 63, described jet pump 62 is communicated with the upper and lower of storage 61 with second pipe 65 respectively by the first pipeline 64, described shower nozzle 63 is connected with jet pump 62 by the 3rd pipeline 66, and described shower nozzle 63 is fixed on the sidepiece of outlet pipe 3.
Outlet pipe 3 sidepiece is provided with the nozzle mounting seat 13 be obliquely installed, and through and shower nozzle 63 is fixed in nozzle mounting seat 13 by demountable structure described nozzle mounting seat 13 with outlet pipe 3.Demountable structure comprises the handle 24 be hinged on nozzle mounting seat 13, teeth are provided with in the end of handle 24, thread section is arranged with outside described shower nozzle 63, described teeth engage with thread section and teeth drive shower nozzle 63 axially to fill in nozzle mounting seat 13 by thread section when handle 24 rotates, and described nozzle mounting seat 13 inwall and shower nozzle 63 periphery are respectively equipped with the plane of inclination for sealing.
In the injection direction of shower nozzle 63 and outlet pipe 3, airflow direction forms angle α, and the size of described angle α is 30 °-60 °.3rd pipeline 66 is provided with filter 67; The internal diameter of retort 7 is greater than the internal diameter of outlet pipe 3; Sealing configuration is provided with between shower nozzle 63 and nozzle mounting seat 13.
Liquid level sensor 14 is provided with in storage 61, heater 15, first temperature transducer 16 and urea solution mass sensor 17, the outlet end of described retort 7 is provided with NOx sensor 18 and the second temperature transducer 19, the first described pipeline 64, second pipe 65 and the 3rd pipeline 66 are respectively equipped with the first solenoid valve 20, second solenoid valve 21 and the 3rd solenoid valve 22, described liquid level sensor 14, heater 15, first temperature transducer 16, urea solution mass sensor 17, NOx sensor 18, second temperature transducer 19, first solenoid valve 20, second solenoid valve 21, 3rd solenoid valve 22, first switching valve 9 is all connected with controller 23 with the second switching valve 10.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ diesel engine main body 1 herein, suction tude 2, outlet pipe 3, worm wheel pressure booster 4, air inlet process pipeline 5, urea solution jet mechanism 6, storage 61, jet pump 62, shower nozzle 63, first pipeline 64, second pipe 65, 3rd pipeline 66, filter 67, retort 7, waste gas circulation pipe 8, first switching valve 9, second switching valve 10, supplementary cooler 11, primary cooler 12, nozzle mounting seat 13, liquid level sensor 14, heater 15, first temperature transducer 16, urea solution mass sensor 17, NOx sensor 18, second temperature transducer 19, first solenoid valve 20, second solenoid valve 21, 3rd solenoid valve 22, controller 23, handle 24, the terms such as angle α, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.

Claims (6)

1. a High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine, comprise diesel engine main body (1), suction tude (2), outlet pipe (3) and worm wheel pressure booster (4), described suction tude (2) is connected with diesel engine main body (1) with air inlet process pipeline (5) by worm wheel pressure booster (4) successively, described outlet pipe (3) is connected between diesel engine main body (1) and worm wheel pressure booster (4), it is characterized in that, described worm wheel pressure booster (4) is provided with the urea solution jet mechanism (6) be connected with outlet pipe (3), urea solution jet mechanism (6) is connected with retort (7), described worm wheel pressure booster (4) is also provided with the waste gas circulation pipe (8) that one end is connected with outlet pipe (3), the other end of described waste gas circulation pipe (8) is connected with air inlet process pipeline (5), described urea solution jet mechanism (6) comprises storage (61), jet pump (62) and shower nozzle (63), described jet pump (62) is communicated with the upper and lower of storage (61) with second pipe (65) respectively by the first pipeline (64), described shower nozzle (63) is connected with jet pump (62) by the 3rd pipeline (66), and described shower nozzle (63) is fixed on the sidepiece of outlet pipe (3), the injection direction of described shower nozzle (63) and the middle airflow direction of outlet pipe (3) form angle (α), and the size of described angle (α) is 30 °-60 °.
2. High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine according to claim 1, it is characterized in that, described waste gas circulation pipe (8) is provided with the first switching valve (9), and described air inlet process pipeline (5) is provided with the second switching valve (10); Described waste gas circulation pipe (8) is provided with supplementary cooler (11), and described air inlet process pipeline (5) is provided with primary cooler (12).
3. High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine according to claim 1 and 2, it is characterized in that, described outlet pipe (3) sidepiece is provided with the nozzle mounting seat (13) be obliquely installed, and the through and shower nozzle (63) of described nozzle mounting seat (13) and outlet pipe (3) is fixed in nozzle mounting seat (13) by demountable structure.
4. High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine according to claim 3, is characterized in that, is provided with liquid level sensor (14) in described storage (61), heater (15), first temperature transducer (16) and urea solution mass sensor (17), the outlet end of described retort (7) is provided with NOx sensor (18) and the second temperature transducer (19), described the first pipeline (64), second pipe (65) and the 3rd pipeline (66) are respectively equipped with the first solenoid valve (20), second solenoid valve (21) and the 3rd solenoid valve (22), described liquid level sensor (14), heater (15), first temperature transducer (16), urea solution mass sensor (17), NOx sensor (18), second temperature transducer (19), first solenoid valve (20), second solenoid valve (21), 3rd solenoid valve (22), first switching valve (9) is all connected with controller (23) with the second switching valve (10).
5. High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine according to claim 4, is characterized in that, the 3rd described pipeline (66) is provided with filter (67); The internal diameter of retort (7) is greater than the internal diameter of outlet pipe (3); Sealing configuration is provided with between described shower nozzle (63) and nozzle mounting seat (13).
6. High-combustion-ratienvironment-friendlynon-road environment-friendlynon-road non-road diesel engine according to claim 3, it is characterized in that, described demountable structure comprises the handle (24) be hinged on nozzle mounting seat (13), teeth are provided with in the end of handle (24), thread section is arranged with outside described shower nozzle (63), described teeth engage with thread section and teeth drive shower nozzle (63) axially to fill in nozzle mounting seat (13) by thread section when handle (24) rotates, described nozzle mounting seat (13) inwall and shower nozzle (63) periphery are respectively equipped with the plane of inclination for sealing.
CN201210220534.6A 2012-08-07 2012-08-07 High-combustion-ratio environment-friendly non-road diesel engine Expired - Fee Related CN102748104B (en)

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CN201210220534.6A CN102748104B (en) 2012-08-07 2012-08-07 High-combustion-ratio environment-friendly non-road diesel engine

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278222A (en) * 2011-08-30 2011-12-14 潍柴动力股份有限公司 Tail gas aftertreatment system and method for diesel engine
EP2415988A1 (en) * 2010-08-06 2012-02-08 Caterpillar Motoren GmbH & Co. KG Two-stage turbocharged engine
CN202250319U (en) * 2011-08-30 2012-05-30 潍柴动力股份有限公司 Diesel engine tail gas aftertreatment system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5357720B2 (en) * 2009-11-27 2013-12-04 三菱重工業株式会社 Ships equipped with exhaust gas treatment equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2415988A1 (en) * 2010-08-06 2012-02-08 Caterpillar Motoren GmbH & Co. KG Two-stage turbocharged engine
CN102278222A (en) * 2011-08-30 2011-12-14 潍柴动力股份有限公司 Tail gas aftertreatment system and method for diesel engine
CN202250319U (en) * 2011-08-30 2012-05-30 潍柴动力股份有限公司 Diesel engine tail gas aftertreatment system

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Granted publication date: 20150513

Termination date: 20160807