CN1294346C - Variable module type impulse sapercharging device of turbocharging diesel engine - Google Patents

Variable module type impulse sapercharging device of turbocharging diesel engine Download PDF

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Publication number
CN1294346C
CN1294346C CNB2004100509963A CN200410050996A CN1294346C CN 1294346 C CN1294346 C CN 1294346C CN B2004100509963 A CNB2004100509963 A CN B2004100509963A CN 200410050996 A CN200410050996 A CN 200410050996A CN 1294346 C CN1294346 C CN 1294346C
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diesel engine
exhaust pipe
volume
pipe
exhaust
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Expired - Fee Related
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CN1598265A (en
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邱伟光
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Zhanjiang Marine University
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Zhanjiang Marine University
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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
    • Y02T10/12—Improving ICE efficiencies

Abstract

The present invention relates to a variable module type pulse conversion supercharging device of a turbine supercharging diesel engine, which comprises a volume variable mold type pulse converter mold piece, a movable wall and an adjustment rod. The volume of an exhaust pipe is changed along with the change of operating conditions of the diesel engine to obtain excellent performance, the requirements of the changed operating conditions of the diesel engine are satisfied, and thereby, the low load performance of a turbine supercharging diesel engine is improved. The present invention has the advantages of reasonable design, simple structure and adjustable volume of the exhaust pipe, and furthermore, the variable module type pulse conversion supercharging device satisfies the requirements of the changed operating conditions. When the diesel engine operates under various operating conditions, excellent performance can be obtained, the comprehensive performance is relatively excellent, and the application is limited by the number of cylinders.

Description

The variable modular pulse converter supercharging device of a kind of turbo-charged diesel
Technical field
The invention belongs to the variable modular pulse converter supercharging device of a kind of turbo-charged diesel.
Background technique
Diesel engine is most widely used a kind of dynamic power machine, and middle high-power diesel engine has adopted turbocharging technology mostly, to improve power, reduces fuel consumption rate, but along with the improving constantly of supercharging level, the problem of part load performance difference is more outstanding.Two kinds of basic pressurization systems of turbo-charged diesel are constant pressure charging system and impulse pressure charging system.The structural feature of constant pressure charging system is that exhaust pipe volume is bigger, outlet pipe plays the effect of voltage stabilizing, the exhaust pressure fluctuation is little, stability of flow by turbine, has the high advantage of turbine efficiency, but the exhaust air flow restriction loss is big, and the exhaust pulses energy almost completely loses, and constant pressure charging system is favourable for high load; And the exhaust pipe volume of impulse pressure charging system is little, and the exhaust pressure fluctuation is big, and the exhaust air flow restriction loss is little, the pulse energy of exhaust obtains the part utilization, exhaust energy utilization ratio height, but because turbine pulsation air inlet, cause turbine efficiency low, impulse pressure charging system is comparatively favourable for low-load.This shows that if a diesel engine is equipped with constant pressure charging system and impulse pressure charging system simultaneously, boost pressure is higher during high load, enable constant pressure charging system, boost pressure is lower during low-load, enables impulse pressure charging system, part load performance is with regard to available improvement, and this is comparatively desirable.Modular pulse converter supercharging system synthesis the advantage of constant pressure charging system and impulse pressure charging system, combination property is better.Patent EP0356378A2 is provided with jet pipe in outlet pipe, middle pressure has been improved about 0.1bar.In the modular pulse converter supercharging system, exhaust pipe volume is bigger to performance impact, to be exhaust pipe volume change with the variation of diesel engine running operating mode ideal situation, when the load of diesel engine is higher, exhaust pipe volume is bigger, makes the modular pulse converter supercharging system more approach constant pressure charging system, if when the load of diesel engine is low, exhaust pipe volume is less, makes this system more approach impulse pressure charging system.But the exhaust pipe volume of existing modular pulse converter supercharging system can not be regulated.
Summary of the invention
The purpose of this invention is to provide the variable modular pulse converter supercharging device of a kind of turbo-charged diesel, exhaust pipe volume is changed with the variation of diesel engine running operating mode, to obtain more excellent performance, satisfy the requirement of diesel engine variable parameter operation, the turbo-charged diesel low-load performance is improved.
The technological scheme taked of the present invention is for achieving the above object: this device is made up of variable volume module type pulse transducer module, removable wall and adjustable lever, variable volume module type pulse transducer module is made of ejector and cylinder exhaust pipe, ejector is contained in a side of cylinder exhaust pipe, the flange of ejector is connected in the outlet of inblock cylinder air flue, the flange of all cylinder exhaust pipes couples together, constitute Diesel Engine Exhaust Pipe, the downstream of outlet pipe and the import of turbine link, removable wall is housed in outlet pipe, and adjustable lever is equipped with at the two ends of removable wall.
Another kind of technological scheme of the present invention is: this device is by module type pulse transducer module, upstream exhaust pipe, main exhaust, secondary outlet pipe, three-way pipe and two level control valves are formed, module type pulse transducer module is made of ejector and cylinder exhaust pipe, ejector is contained in a side of cylinder exhaust pipe, the flange of ejector is connected in the outlet of inblock cylinder air flue, the flange of all cylinder exhaust pipes couples together, constitute Diesel Engine Exhaust Pipe, the downstream of described upstream exhaust pipe and the upstream extremity of three-way pipe link, two downstream of three-way pipe link with the upstream extremity of main exhaust and secondary outlet pipe respectively, three-way pipe locates to be equipped with one two level control valve with one voice, and the downstream of main exhaust and secondary outlet pipe links with the import of turbine respectively.
The downstream of described main exhaust and secondary outlet pipe links with two upstream extremities of pulse converter respectively, and the downstream of pulse converter and the import of turbine link, and the upstream of pulse converter is two cross-sectional constriction pipelines, and the downstream is the uniform section mixing tube.
The present invention is reasonable in design, and is simple in structure, and exhaust pipe volume is adjustable, satisfies the requirement of diesel engine variable parameter operation, when diesel engine is moved under various operating modes, can obtain more excellent performance, and combination property is more excellent relatively, uses the restriction that is not subjected to cylinder number.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a variable volume module type pulse transducer modular construction schematic representation in the step-less adjustment of the present invention;
Fig. 3 is a variable volume module type pulse transducer module A-A sectional view in the step-less adjustment of the present invention;
Fig. 4 is the structural representation that exhaust pipe volume of the present invention has grade regulation scheme;
Fig. 5 is that exhaust pipe volume of the present invention has level to regulate the structural representation of another kind of scheme.
Embodiment
The invention provides three embodiments that exhaust pipe volume is regulated.
Embodiment one: as shown in Figure 1, exhaust pipe volume step-less adjustment embodiment of the present invention is made up of variable volume module type pulse transducer module, removable wall and adjustable lever, variable volume module type pulse transducer module 17 is made of ejector 1 and cylinder exhaust pipe 14, ejector 1 is contained in a side of cylinder exhaust pipe 14, as shown in Figure 2, the flange 13 of ejector 1 is connected in the air outlet flue outlet of cylinder, and the flange 2 of all cylinder exhaust pipes 14 couples together, and constitutes the outlet pipe 3 of diesel engine.The import of the downstream of outlet pipe 3 and turbine 7 links, removable wall 4 is housed in outlet pipe 3, adjustable lever 12 is equipped with at the two ends of removable wall 4, as shown in Figure 3, the upper space of removable wall 4 constitutes exhaust pipe volume, the lifting of adjustable lever 12 is controlled by control mechanism, and the position by adjustable lever 12 adjustable walls 4 changes exhaust pipe volume.When the load of diesel engine increased, the position of turning down removable wall 4 downwards increased exhaust pipe volume.Otherwise, when the load of diesel engine reduces, upwards heighten the position of removable wall 4, exhaust pipe volume is reduced.
Embodiment two: as shown in Figure 4, exhaust pipe volume of the present invention has level to regulate embodiment by upstream exhaust pipe, main exhaust, secondary outlet pipe, three-way pipe and two level control valves are formed, the upstream extremity of the downstream of upstream exhaust pipe 9 and three-way pipe 16 links, two downstream of three-way pipe 16 link with the upstream extremity of main exhaust 6 and secondary outlet pipe 8 respectively, three-way pipe 16 locates to be equipped with one two level control valve 10 with one voice, main exhaust 6 and upstream exhaust pipe 9 are made of module type pulse transducer module outlet pipe, and the downstream of main exhaust 6 and secondary outlet pipe 8 links with the import of turbine 7 respectively.When the load of diesel engine is higher, two level control valves 10 are closed the passage of upstream exhaust pipe 9 and main exhaust 6, air-flow flows into secondary outlet pipe 8 in the upstream exhaust pipe 9, exhaust pipe volume equals main exhaust 6 volumes, upstream exhaust pipe 9 volumes and secondary outlet pipe 8 volume sums, at this moment the volume maximum of outlet pipe.Otherwise, when the load of diesel engine hanged down, two level control valves 10 were closed the passage of upstream exhaust pipe 9 and secondary outlet pipe 8, and air flow stream are gone into main exhaust 6 in the upstream exhaust pipe 9, exhaust pipe volume equals main exhaust 6 volumes and upstream exhaust pipe 9 volume sums, at this moment the volume minimum of outlet pipe.
Embodiment three: as shown in Figure 5, exhaust pipe volume of the present invention has another embodiment of level adjusting by upstream exhaust pipe, main exhaust, secondary outlet pipe, three-way pipe, pulse converter and two level control valves are formed, the upstream extremity of the downstream of upstream exhaust pipe 9 and three-way pipe 16 links, two downstream of three-way pipe 16 link with the upstream extremity of main exhaust 6 and secondary outlet pipe 8 respectively, three-way pipe 16 locate to be equipped with one two level control valve 10 with one voice, main exhaust 6 and upstream exhaust pipe 9 are made of module type pulse transducer module outlet pipe, the downstream of main exhaust 6 and secondary outlet pipe 8 links with two upstream extremities of pulse converter 11 respectively, and the import of the downstream of pulse converter 11 and turbine 7 links.The upstream of pulse converter 11 is two cross-sectional constriction pipelines, the downstream is a mixing tube, from two strands of air-flows of main exhaust 6 and secondary outlet pipe 8 cross-sectional constriction pipeline of flowing through at first respectively, its pressure is descended and the speed rising, in mixing tube, be mixed into one steady air flow then, again through turbine 7 actings, to obtain high turbine efficiency.When the load of diesel engine is higher, two level control valves 10 are closed the passage of upstream exhaust pipe 9 and main exhaust 6, air-flow flows into secondary outlet pipe 8 in the upstream exhaust pipe 9, exhaust pipe volume equals main exhaust 6 volumes, upstream exhaust pipe 9 volumes and secondary outlet pipe 8 volume sums, at this moment the volume maximum of outlet pipe.Otherwise, when the load of diesel engine hanged down, two level control valves 10 were closed the passage of upstream exhaust pipe 9 and secondary outlet pipe 8, and air flow stream are gone into main exhaust 6 in the upstream exhaust pipe 9, exhaust pipe volume equals main exhaust 6 volumes and upstream exhaust pipe 9 volume sums, at this moment the volume minimum of outlet pipe.

Claims (1)

1, the variable modular pulse converter supercharging device of a kind of turbo-charged diesel, by variable volume module type pulse transducer module, removable wall and adjustable lever are formed, variable volume module type pulse transducer module (17) is made of ejector (1) and cylinder exhaust pipe (14), ejector (1) is contained in a side of cylinder exhaust pipe (14), the flange (13) of ejector (1) is connected in the outlet of inblock cylinder air flue, the flange (2) of all cylinder exhaust pipes (14) couples together, constitute Diesel Engine Exhaust Pipe (3), the import of the downstream of outlet pipe (3) and turbine (7) links, it is characterized in that: removable wall (4) is housed in the described outlet pipe (3), and adjustable lever (12) is equipped with at the two ends of removable wall (4).
CNB2004100509963A 2004-08-04 2004-08-04 Variable module type impulse sapercharging device of turbocharging diesel engine Expired - Fee Related CN1294346C (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100510343C (en) * 2007-11-01 2009-07-08 上海交通大学 Gas flow guiding composite pulse conversion turbo supercharging system
CN101979851A (en) * 2010-11-04 2011-02-23 上海交通大学 Turbocharging system capable of adjusting necking rate of exhaust manifold by utilizing movable partition boards
CN102418589A (en) * 2011-10-28 2012-04-18 上海交通大学 Turbocharging system with exhaust pipe with continuously variable volume
CN102418588A (en) * 2011-10-28 2012-04-18 上海交通大学 Exhaust pipe volume adaptive turbocharging system
CN102518506A (en) * 2011-11-25 2012-06-27 上海交通大学 Turbocharger system with elastic components arranged at air exhaust pipe outlet
CN102518505A (en) * 2011-11-25 2012-06-27 上海交通大学 Turbocharger system with movable body arranged in air exhaust pipe

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CN101413429B (en) * 2008-11-20 2010-06-02 上海交通大学 Turbocharging system for adjusting exhausting pipe volume by rotating baffle
CN101936215B (en) * 2010-08-31 2012-07-04 上海交通大学 Turbo charging system with exhaust manifold having variable necking rate
CN102383917A (en) * 2011-10-28 2012-03-21 上海交通大学 Turbocharging system with adjustable volume of exhaust pipe
CN102392723A (en) * 2011-10-28 2012-03-28 上海交通大学 Turbocharging system with self-regulated-volume exhaust pipe
CN102400780A (en) * 2011-10-28 2012-04-04 上海交通大学 Turbocharging system with variable volume of exhaust pipe
CN102418590A (en) * 2011-10-28 2012-04-18 上海交通大学 Turbocharging system with exhaust pipe with variable volume
CN102383916B (en) * 2011-10-28 2013-02-27 上海交通大学 Turbocharging system with continuously adjustable volume of exhaust pipe
CN102410076B (en) * 2011-11-25 2013-03-27 上海交通大学 Turbo-charging system provided with moving part in exhaust pipe
CN102410077A (en) * 2011-11-25 2012-04-11 上海交通大学 Turbo-charging system provided with rotating part at outlet of exhaust pipe
CN102434260A (en) * 2011-11-25 2012-05-02 上海交通大学 Turbocharging system with elastic part arranged in air exhaust pipe
CN102562269A (en) * 2011-12-28 2012-07-11 上海交通大学 Turbine inlet area self-adjusting turbo-charging system
CN102562268A (en) * 2011-12-28 2012-07-11 上海交通大学 Turbo charging system with variable turbine inlet area
CN102536436B (en) * 2011-12-28 2013-09-25 上海交通大学 Turbocharging system with moving part at front of turbine inlet
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CN102691567A (en) * 2012-06-11 2012-09-26 山东交通学院 Split type secondary exhaust pipe system turbo supercharging system
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CN103291443A (en) * 2013-05-17 2013-09-11 上海交通大学 Exhaust branch pipe outlet area regulating mechanism with chains
CN103452648A (en) * 2013-08-29 2013-12-18 上海交通大学 Throat area regulating device of exhaust manifold
CN104061063A (en) * 2014-06-06 2014-09-24 上海交通大学 Control-type adjusting system with step motor
CN104481671A (en) * 2014-12-06 2015-04-01 李鹏飞 Modified pulse turbo-charged system

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DE3343429A1 (en) * 1983-12-01 1985-06-13 Klöckner-Humboldt-Deutz AG, 5000 Köln Multi-cylinder reciprocating piston internal combustion engine with a pulse converter
EP0356378A2 (en) * 1988-08-17 1990-02-28 GebràœDer Sulzer Aktiengesellschaft Exhaust gas manifold of a diesel engine with 9 or 18 cylinders
JP2003129891A (en) * 2001-10-23 2003-05-08 Daihatsu Motor Co Ltd 2-stroke internal combustion engine having exhaust turbo-supercharger

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DE3343429A1 (en) * 1983-12-01 1985-06-13 Klöckner-Humboldt-Deutz AG, 5000 Köln Multi-cylinder reciprocating piston internal combustion engine with a pulse converter
EP0356378A2 (en) * 1988-08-17 1990-02-28 GebràœDer Sulzer Aktiengesellschaft Exhaust gas manifold of a diesel engine with 9 or 18 cylinders
JP2003129891A (en) * 2001-10-23 2003-05-08 Daihatsu Motor Co Ltd 2-stroke internal combustion engine having exhaust turbo-supercharger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100510343C (en) * 2007-11-01 2009-07-08 上海交通大学 Gas flow guiding composite pulse conversion turbo supercharging system
CN101979851A (en) * 2010-11-04 2011-02-23 上海交通大学 Turbocharging system capable of adjusting necking rate of exhaust manifold by utilizing movable partition boards
CN101979851B (en) * 2010-11-04 2012-02-29 上海交通大学 Turbocharging system capable of adjusting necking rate of exhaust manifold by utilizing movable partition boards
CN102418589A (en) * 2011-10-28 2012-04-18 上海交通大学 Turbocharging system with exhaust pipe with continuously variable volume
CN102418588A (en) * 2011-10-28 2012-04-18 上海交通大学 Exhaust pipe volume adaptive turbocharging system
CN102418588B (en) * 2011-10-28 2013-06-19 上海交通大学 Exhaust pipe volume adaptive turbocharging system
CN102518506A (en) * 2011-11-25 2012-06-27 上海交通大学 Turbocharger system with elastic components arranged at air exhaust pipe outlet
CN102518505A (en) * 2011-11-25 2012-06-27 上海交通大学 Turbocharger system with movable body arranged in air exhaust pipe

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