CN201314254Y - Twin-turbocharger parallel three-stage adjustable turbocharging device - Google Patents

Twin-turbocharger parallel three-stage adjustable turbocharging device Download PDF

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Publication number
CN201314254Y
CN201314254Y CNU2008201573068U CN200820157306U CN201314254Y CN 201314254 Y CN201314254 Y CN 201314254Y CN U2008201573068 U CNU2008201573068 U CN U2008201573068U CN 200820157306 U CN200820157306 U CN 200820157306U CN 201314254 Y CN201314254 Y CN 201314254Y
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China
Prior art keywords
turbine
small
supercharger
switching control
flow switching
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Expired - Fee Related
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CNU2008201573068U
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Chinese (zh)
Inventor
邓康耀
张哲�
崔毅
石磊
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Shanghai Jiao Tong University
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Shanghai Jiao Tong 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

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Abstract

The utility model relates to a parallel connection three-stage adjustable turbocharger of a double turbocharger, which belongs to the technical field of internal combustion engines. The parallel connection three-stage adjustable turbocharger essentially comprises four flow switching control valves, a small turbine air inlet pipe, a small turbine, a large turbine air inlet pipe, a large turbine, a small supercharger, a small supercharger air inlet pipe, a large supercharger and a large supercharger air inlet pipe; a small turbine flow switching control valve is arranged in an small turbine air outlet pipe; a large turbine flow switching control valve is arranged in a large turbine air outlet pipe; a large supercharger flow switching control valve is arranged in the large supercharger air inlet pipe; and a small supercharger flow switching control valve is arranged in the small supercharger air inlet pipe. The four flow switching control valves control the switching of the large and small turbocharger according to the operation conditions, thereby realizing three stages of sequential turbocharging, i.e. the small turbine single-stage trubocharging, the large turbine single-stage trubocharging, and the large and small turbine single-stage trubocharging, so that the changing scope of the equivalent circulation area of the turbines is wider.

Description

Bi-turbo adjustable turbo charging installation of three stages in parallel
Technical field
The utility model relates to a kind of turbo charging installation, particularly a kind of bi-turbo adjustable turbo charging installation of three stages in parallel belongs to technical field of internal combustion engines.
Background technique
Along with the increasingly stringent of Abgasgesetz and the further raising of energy-conservation requirement, new type pressurized system becomes the indispensable technological means of diesel engine development.The sequential pressurizing technology is used a pressurized machine in the big load of diesel engine low speed, in other operating mode, be with two pressurized machine work.Can solve the not enough problem of the big load air feed of diesel engine preferably.Yet,, the mapping of performance, especially diesel engine in the full operating mode scope of diesel engine is had higher requirement along with the enforcement of European worker V Abgasgesetz.This is a new challenge to the diesel engine supercharging system.Theoretically, the stage number of sequential turbocharging is many more, more can be near the demand characteristics of diesel engine; Turbosupercharger is more little, can improve the transient response performance of diesel engine more.
Consider the complexity and the Security of application, general sequential turbocharging technology is used two turbosupercharger, and when motor ran on high rotating speed high load, two turbosupercharger were all devoted oneself to work; When motor runs on the slow-speed of revolution, have only a turbosupercharger to devote oneself to work.Like this, height operating mode turbine circulation area differs 50%, can improve low-load performance effectively.But, in order further to improve low-load performance, need to adopt more turbosupercharger, as adopt 4 turbosupercharger can make the turbine circulation area in 25%～100% range, adaptive capacity to working conditions change is stronger, but structure is also comparatively complicated simultaneously.
Adopt two stage sequential turbochargings, pressurization system and the diesel engine coupling in full operating mode scope is not ideal enough.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of bi-turbo adjustable supercharging device of three stages in parallel.In the big load of low speed, use a little pressurized machine; In the big load of medium rotating speed, use a big pressurized machine; Using two pressurized machines in the big load at a high speed.
The technological scheme that the utility model adopted is to achieve these goals: the utility model comprises the diesel engine intake pipe, diesel engine, Diesel Engine Exhaust Pipe, intercooler, little turbine flow switching control valve, big turbine flow switching control valve, little gas inlet casing, little turbine, big gas inlet casing, big turbine, little pressurized machine, little pressurized machine suction tude, big pressurized machine, big pressurized machine suction tude, big pressurized machine flow switching control valve, little pressurized machine flow switching control valve, little supercharger outlet pipe, big supercharger outlet pipe, the intercooler suction tude, little turbine steam outlet pipe and big turbine steam outlet pipe, the suction port of diesel engine is connected with the outlet of intercooler by the diesel engine intake pipe, the relief opening of diesel engine is connected with the import of little turbine with little gas inlet casing by Diesel Engine Exhaust Pipe, the relief opening of diesel engine is connected with the import of big turbine with big gas inlet casing by Diesel Engine Exhaust Pipe, the outlet of little turbine is connected with an end of little turbine steam outlet pipe, the outlet of big turbine is connected with an end of big turbine steam outlet pipe, the other end of little turbine steam outlet pipe with communicate with atmosphere again after the other end of big turbine steam outlet pipe is connected, little turbine flow switching control valve is installed in the little turbine steam outlet pipe, and big turbine flow switching control valve is installed in the big turbine steam outlet pipe; The import of intercooler is connected with the outlet of big pressurized machine with big supercharger outlet pipe by the intercooler suction tude, the import of intercooler is connected with the outlet of little pressurized machine with little supercharger outlet pipe by the intercooler suction tude, the import of big pressurized machine is connected with an end of big pressurized machine suction tude, the import of little pressurized machine is connected with an end of little pressurized machine suction tude, the other end of big pressurized machine suction tude with communicate with atmosphere again after the other end of little pressurized machine suction tude is connected, big pressurized machine flow switching control valve is installed in the big pressurized machine suction tude, and little pressurized machine flow switching control valve is installed in the little pressurized machine suction tude.
The beneficial effects of the utility model: the utility model adopts 4 flow switching control valve, respectively according to the incision of operating conditions control big and small turbochargers with cut out.It is broader that the excursion of turbine equivalent circulation area is compared with two stage sequential turbochargings, more adapts to the supercharged diesel engine operating conditions.Use two turbosupercharger just can realize triphasic sequential turbocharging effect, wideer than the regulation range of adjustable two stage sequential turbochargings.Under same structure and control complexity, have broader operating mode accommodation, be particularly suitable for being applied to highly supercharged diesel engine.
Description of drawings
Fig. 1 is the structural representation of the utility model turbo charging installation.
Embodiment
Below in conjunction with accompanying drawing, concrete enforcement of the present utility model is described further.
As shown in Figure 1, the utility model comprises: diesel engine intake pipe 1, diesel engine 2, Diesel Engine Exhaust Pipe 3, intercooler 10, little turbine flow switching control valve 4, big turbine flow switching control valve 5, little gas inlet casing 6, little turbine 7, big gas inlet casing 8, big turbine 9, little pressurized machine 11, little pressurized machine suction tude 12, big pressurized machine 13, big pressurized machine suction tude 14, big pressurized machine flow switching control valve 15, little pressurized machine flow switching control valve 16, little supercharger outlet pipe 17, big supercharger outlet pipe 18, intercooler suction tude 19, little turbine steam outlet pipe 20 and big turbine steam outlet pipe 21, the suction port of diesel engine 2 is connected by the outlet of diesel engine intake pipe 1 with intercooler 10, the relief opening of diesel engine 2 is connected with the import of little turbine 7 with little gas inlet casing 6 by Diesel Engine Exhaust Pipe 3, the relief opening of diesel engine 2 is connected with the import of big turbine 9 with big gas inlet casing 8 by Diesel Engine Exhaust Pipe 3, the outlet of little turbine 7 is connected with an end of little turbine steam outlet pipe 20, the outlet of big turbine 9 is connected with an end of big turbine steam outlet pipe 21, the other end of little turbine steam outlet pipe 20 with communicate with atmosphere again after the other end of big turbine steam outlet pipe 21 is connected, little turbine flow switching control valve 4 is installed in the little turbine steam outlet pipe 20, and big turbine flow switching control valve 5 is installed in the big turbine steam outlet pipe 21; The import of intercooler 10 is connected with the outlet of big pressurized machine 13 with big supercharger outlet pipe 18 by intercooler suction tude 19, the import of intercooler 10 is connected with the outlet of little pressurized machine 11 with little supercharger outlet pipe 17 by intercooler suction tude 19, the import of big pressurized machine 13 is connected with an end of big pressurized machine suction tude 14, the import of little pressurized machine 11 is connected with an end of little pressurized machine suction tude 12, the other end of big pressurized machine suction tude 14 with communicate with atmosphere again after the other end of little pressurized machine suction tude 12 is connected, big pressurized machine flow switching control valve 15 is installed in the big pressurized machine suction tude 14, and little pressurized machine flow switching control valve 16 is installed in the little pressurized machine suction tude 12.
When the diesel engine slow-speed of revolution, high load running, close big pressurized machine flow switching control valve 15 and big turbine flow switching control valve 5; Open little pressurized machine flow switching control valve 16 and little turbine flow switching control valve 4.At this moment have only little pressurized machine 11 and 7 work of little turbine, total turbine flow area is little, and the turbine merit is big, and at this time little pressurized machine 11 can produce bigger pressure ratio, and surge can not occur under less flow, satisfies the air requirements of diesel engine low speed high load.
When the medium rotating speed of diesel engine, high load running, close little pressurized machine flow switching control valve 16 and little turbine flow switching control valve 4; Open big pressurized machine flow switching control valve 15 and big turbine flow switching control valve 5.At this moment have only big pressurized machine 13 and big turbine 9 in work, total turbine flow area is bigger, can not produce too high pressure ratio, also can satisfy the air requirements of diesel engine at medium rotating speed, high load simultaneously.
When diesel engine high speed, high load running, open big pressurized machine flow switching control valve 15, big turbine flow switching control valve 5, little pressurized machine flow switching control valve 16 and little turbine flow switching control valve 4.Total flow area maximum of turbine can not produce too high pressure ratio; Two pressurized machines are worked simultaneously, and total discharge is bigger, choking phenomenon can not occur, satisfy the air requirements of diesel engine high speed high load.
When the diesel engine underrun, amount of charge air has not been a main purpose, opens big pressurized machine flow switching control valve 15, big turbine flow switching control valve 5, little pressurized machine flow switching control valve 16 and little turbine flow switching control valve 4.The total flow area of turbine increases, and the diesel exhaust gas back pressure reduces, and waste gas is released merit and reduced, and reduces the oil consumption of diesel engine.

Claims (1)

1.一种双涡轮增压器并联三阶段可调涡轮增压装置，包括：柴油机进气管(1)、柴油机(2)、柴油机排气管(3)和中冷器(10)，其特征在于还包括小涡轮流量切换控制阀(4)、大涡轮流量切换控制阀(5)、小涡轮进气管(6)、小涡轮(7)、大涡轮进气管(8)、大涡轮(9)、小增压器(11)、小增压器进气管(12)、大增压器(13)、大增压器进气管(14)、大增压器流量切换控制阀(15)、小增压器流量切换控制阀(16)、小增压器出气管(17)、大增压器出气管(18)、中冷器进气管(19)、小涡轮出气管(20)和大涡轮出气管(21)，柴油机(2)的进气口通过柴油机进气管(1)与中冷器(10)的出口连接，柴油机(2)的排气口通过柴油机排气管(3)和小涡轮进气管(6)与小涡轮(7)的进口连接，柴油机(2)的排气口通过柴油机排气管(3)和大涡轮进气管(8)与大涡轮(9)的进口连接，小涡轮(7)的出口与小涡轮出气管(20)的一端连接，大涡轮(9)的出口与大涡轮出气管(21)的一端连接，小涡轮出气管(20)的另一端与大涡轮出气管(21)的另一端连接后再与大气相通，小涡轮流量切换控制阀(4)安装在小涡轮出气管(20)中，大涡轮流量切换控制阀(5)安装在大涡轮出气管(21)中；中冷器(10)的进口通过中冷器进气管(19)和大增压器出气管(18)与大增压器(13)的出口连接，中冷器(10)的进口通过中冷器进气管(19)和小增压器出气管(17)与小增压器(11)的出口连接，大增压器(13)的进口与大增压器进气管(14)的一端连接，小增压器(11)的进口与小增压器进气管(12)的一端连接，大增压器进气管(14)的另一端与小增压器进气管(12)的另一端连接后再与大气相通，大增压器流量切换控制阀(15)安装在大增压器进气管(14)中，小增压器流量切换控制阀(16)安装在小增压器进气管(12)中。1. A twin-turbocharger parallel three-stage adjustable turbocharging device, comprising: diesel engine intake pipe (1), diesel engine (2), diesel engine exhaust pipe (3) and intercooler (10), its feature It also includes a small turbine flow switching control valve (4), a large turbine flow switching control valve (5), a small turbine intake pipe (6), a small turbine (7), a large turbine intake pipe (8), a large turbine (9) , small supercharger (11), small supercharger intake pipe (12), large supercharger (13), large supercharger intake pipe (14), large supercharger flow switching control valve (15), small Supercharger flow switching control valve (16), small supercharger outlet pipe (17), large supercharger outlet pipe (18), intercooler inlet pipe (19), small turbo outlet pipe (20) and large turbo Outlet pipe (21), the air inlet of diesel engine (2) is connected with the outlet of intercooler (10) through diesel engine air inlet pipe (1), the exhaust port of diesel engine (2) is connected through diesel engine exhaust pipe (3) and small The turbine intake pipe (6) is connected with the inlet of the small turbine (7), and the exhaust port of the diesel engine (2) is connected with the inlet of the large turbine (9) by the diesel engine exhaust pipe (3) and the large turbine intake pipe (8), The outlet of small turbine (7) is connected with one end of small turbine outlet pipe (20), the outlet of large turbine (9) is connected with one end of large turbine outlet pipe (21), and the other end of small turbine outlet pipe (20) is connected with large turbine outlet pipe (20). The other end of the turbine outlet pipe (21) is connected to the atmosphere again, the small turbine flow switching control valve (4) is installed in the small turbine outlet pipe (20), and the large turbine flow switching control valve (5) is installed in the large turbine outlet. In the trachea (21); the inlet of the intercooler (10) is connected with the outlet of the large supercharger (13) by the intercooler inlet pipe (19) and the large supercharger outlet pipe (18), and the intercooler (10 ) inlet is connected with the outlet of the small supercharger (11) through the intercooler inlet pipe (19) and the outlet pipe of the small supercharger (17), and the inlet of the large supercharger (13) is connected with the inlet pipe of the large supercharger One end of (14) is connected, and the inlet of small supercharger (11) is connected with one end of small supercharger intake pipe (12), and the other end of large supercharger intake pipe (14) is connected with small supercharger intake pipe ( The other end of 12) is connected to the atmosphere again, the large supercharger flow switching control valve (15) is installed in the large supercharger intake pipe (14), and the small supercharger flow switching control valve (16) is installed in the small supercharger flow switching control valve (16). Into the supercharger intake pipe (12).
CNU2008201573068U 2008-12-18 2008-12-18 Twin-turbocharger parallel three-stage adjustable turbocharging device Expired - Fee Related CN201314254Y (en)

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CNU2008201573068U CN201314254Y (en) 2008-12-18 2008-12-18 Twin-turbocharger parallel three-stage adjustable turbocharging device

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Application Number Priority Date Filing Date Title
CNU2008201573068U CN201314254Y (en) 2008-12-18 2008-12-18 Twin-turbocharger parallel three-stage adjustable turbocharging device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400777A (en) * 2011-11-03 2012-04-04 上海交通大学 Single-scroll twin-pressure turbo system with bleed valve
CN102748122A (en) * 2012-07-16 2012-10-24 上海中船三井造船柴油机有限公司 Operative condition control device for booster of marine diesel engine
CN102966428A (en) * 2012-11-12 2013-03-13 上海交通大学 Peripheral gas path system of marine engine
CN103089400A (en) * 2013-01-15 2013-05-08 上海交通大学 Air exhaust pressure adjusting type parallel connection boost system
CN103089402A (en) * 2013-01-21 2013-05-08 上海交通大学 Through pipe adjusting type parallel connection air circuit system
CN103089399A (en) * 2013-01-15 2013-05-08 上海交通大学 Air inlet pressure adjusting type parallel connection boost system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400777A (en) * 2011-11-03 2012-04-04 上海交通大学 Single-scroll twin-pressure turbo system with bleed valve
CN102400777B (en) * 2011-11-03 2013-03-27 上海交通大学 Single-vortex double-air compressor turbine pressurizing system with air escape valves
CN102748122A (en) * 2012-07-16 2012-10-24 上海中船三井造船柴油机有限公司 Operative condition control device for booster of marine diesel engine
CN102966428A (en) * 2012-11-12 2013-03-13 上海交通大学 Peripheral gas path system of marine engine
CN103089400A (en) * 2013-01-15 2013-05-08 上海交通大学 Air exhaust pressure adjusting type parallel connection boost system
CN103089399A (en) * 2013-01-15 2013-05-08 上海交通大学 Air inlet pressure adjusting type parallel connection boost system
CN103089402A (en) * 2013-01-21 2013-05-08 上海交通大学 Through pipe adjusting type parallel connection air circuit system

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090923

Termination date: 20101218