CN105927428A - Engine intake and exhaust system with switchable mode - Google Patents

Engine intake and exhaust system with switchable mode Download PDF

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Publication number
CN105927428A
CN105927428A CN201610271458.XA CN201610271458A CN105927428A CN 105927428 A CN105927428 A CN 105927428A CN 201610271458 A CN201610271458 A CN 201610271458A CN 105927428 A CN105927428 A CN 105927428A
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CN
China
Prior art keywords
exhaust
branch
control valve
valve
air inlet
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.)
Pending
Application number
CN201610271458.XA
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Chinese (zh)
Inventor
王杨
余远菊
卿辉斌
杨昆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Changan Automobile Co Ltd
Original Assignee
Chongqing Changan Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Changan Automobile Co Ltd filed Critical Chongqing Changan Automobile Co Ltd
Priority to CN201610271458.XA priority Critical patent/CN105927428A/en
Publication of CN105927428A publication Critical patent/CN105927428A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F02M35/10163—Supercharged engines having air intakes specially adapted to selectively deliver naturally aspirated fluid or supercharged fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

The invention discloses an engine intake and exhaust system with the switchable mode. An intake main pipe connected with an intake manifold is branched into a first intake branch and a second intake branch, an exhaust main pipe connected with an exhaust manifold is branched into a first exhaust branch and a second exhaust branch, and a compressor and a turbine are arranged on the first intake branch and the first exhaust branch, so that a turbine pressurizing intake and exhaust loop is formed; the second intake branch and the second exhaust branch are arranged to a natural suction intake and exhaust loop; and through control over intake valves and exhaust valves on the intake branches and the exhaust branches, switching between the turbine pressurizing intake and exhaust loop and the natural suction intake and exhaust loop is controlled, and the requirement of an engine for intake and exhaust modes under different working conditions is met.

Description

The engine intake and exhaust system of changeable pattern
Technical field
The invention belongs to engine intake and exhaust system field, be specifically related to the engine intake and exhaust system of changeable pattern.
Background technology
Conventional engines has two kinds of air inlet patterns, and one is natural aspiration mode of operation, and one is turbocharging mode of operation.Under same performance parameter, NA engine is big compared with supercharged engine discharge capacity, and oil consumption is high, and it is poor discharge, but supercharged engine to there is also low engine speeds inoperative, and increase exhaust back pressure, the problem responding sluggishness.
Summary of the invention
The invention discloses the engine intake and exhaust system of a kind of changeable pattern, according to Different Work Condition of Engine, switch natural aspiration, two kinds of intake and exhaust mode of operations of turbocharging, the advantage taking into account NA engine and engine with supercharger.
The engine intake and exhaust system of changeable pattern disclosed by the invention, including gas handling system, gas extraction system and engine body, gas handling system, including: inlet manifold and inlet manifold；Described inlet manifold's head end is manifold structure, and stage casing is divided into air inlet branch side by side, and end is accumulated manifold structure by air inlet branch again；It is respectively provided with air intake control valve in described air inlet branch, one of them air inlet branch arranges compressor；The end of described inlet manifold is connected with engine body by inlet manifold.
Give vent to anger system, including: exhaust main and exhaust manifold；Described exhaust main head end is manifold structure, and stage casing is divided into Exhaust branch side by side, and end is accumulated manifold structure by Exhaust branch again；It is respectively provided with gas exhausting valve on described Exhaust branch, one of them Exhaust branch arranges turbine；The end of described exhaust main is connected with engine body by exhaust manifold.
During natural aspiration mode of operation, close the air intake control valve arranging in the air inlet branch of compressor, the gas exhausting valve arranging on the Exhaust branch of turbine, open other air intake control valves, gas exhausting valve.
During turbocharging mode of operation, the gas exhausting valve open the air intake control valve in the air inlet branch that compressor is set, arranging on the Exhaust branch of turbine, close other air intake control valves, gas exhausting valve.
Further, described inlet manifold stage casing is divided into the first air inlet branch, the second air inlet branch side by side, and end is accumulated manifold structure by the first air inlet branch and the second air inlet branch again；The first air intake control valve and compressor is set gradually in described first air inlet branch；In described second air inlet branch, the second air intake control valve is set.
Described exhaust main stage casing is divided into first exhaust branch, second exhaust branch side by side, end again by ranked first exhaust point with second exhaust branch accumulate manifold structure；First exhaust control valve and turbine is set gradually in described first exhaust branch；In described second exhaust branch, second exhaust control valve is set.
During natural aspiration mode of operation, the first air intake control valve, first exhaust control valve are closed, and the second air intake control valve, second exhaust control valve are opened.
During turbocharging mode of operation, the first air intake control valve, first exhaust control valve are opened, and the second air intake control valve, second exhaust control valve are closed.
Further, described first air intake control valve and the second air intake control valve are controlled by an air inlet valve control motor by intake valve connecting shaft；When air inlet valve control motor controls the first air intake control valve aperture increase, control the second air intake control valve aperture simultaneously and reduce.
Described first exhaust control valve is controlled by an exhaust valve control motor by air bleeding valve connecting shaft with second exhaust control valve；When exhaust valve control motor controls the increase of first exhaust control valve aperture, control second exhaust control valve aperture simultaneously and reduce.
Advantageous Effects of the present invention is: the inlet manifold being connected with inlet manifold is branched off into the first air inlet branch, second air inlet branch, the exhaust main being connected with discharge manifold is branched off into first exhaust branch, second exhaust branch, first air inlet branch is arranged compressor in first exhaust branch, turbine thus constitute turbocharging intake and exhaust loop, second air inlet branch and second exhaust branch are arranged to natural aspiration intake and exhaust loop, by controlling each air inlet branch, intake valve on Exhaust branch, air bleeding valve controls the switching in turbocharging intake and exhaust loop and natural aspiration intake and exhaust loop, realize the engine demand to intake and exhaust pattern under different operating modes.
Accompanying drawing explanation
Fig. 1 is the engine intake and exhaust system figure of changeable pattern；
Wherein, 1-engine body, 2-discharge manifold, 3-inlet manifold, 4-inlet manifold, 5-air inlet branch, 6-exhaust main, 7-Exhaust branch, 8-air inlet valve control motor, 9-is vented valve control motor, 10-the second air intake control valve, 11-the first air intake control valve, 12-first exhaust control valve, 13-second exhaust control valve, 14-compressor, 15-turbine.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, the engine intake and exhaust system of changeable pattern, including gas handling system, gas extraction system and engine body 1.
Gas handling system, including: inlet manifold 4 and inlet manifold 3.Inlet manifold's head end is manifold structure, and stage casing is divided into the first air inlet branch, the second air inlet branch side by side, and end is accumulated manifold structure by the first air inlet branch and the second air inlet branch again.The first air intake control valve 11 and compressor 14 is set gradually in first air inlet branch；Second air intake control valve 10 is set in second air inlet branch；The end of inlet manifold is connected with engine body 1 by inlet manifold 3.
Give vent to anger system, including: exhaust main 6 and exhaust manifold 2.Exhaust main 6 stage casing is divided into first exhaust branch, second exhaust branch side by side, and end accumulates manifold structure by ranked first Exhaust branch and second exhaust branch again.First exhaust control valve 12 and turbine 15 is set gradually in first exhaust branch.Second exhaust control valve 13 is set in second exhaust branch.The end of exhaust main is connected with engine body 1 by exhaust manifold 2.
First air intake control valve 11 is controlled by an air inlet valve control motor 8 by intake valve connecting shaft with the second air intake control valve 10, when air inlet valve control motor 8 controls the first air intake control valve 11 aperture increase, controls the second intake valve simultaneously and controls 10 apertures reductions；First exhaust control valve 12 is controlled by an exhaust valve control motor 9 by air bleeding valve connecting shaft with second exhaust control valve 13；When exhaust valve control motor 9 controls the increase of first exhaust control valve 12 aperture, control second exhaust control valve 13 aperture simultaneously and reduce.
Exhaust valve control motor 9 and air inlet valve control motor 8 are by ECM control, and action synchronizes.
When engine is in natural aspiration state, air inlet valve control motor 8 controls the first air intake control valve and closes, and the second air intake control valve is opened, and exhaust valve control motor 9 controls first exhaust control valve and closes, and second exhaust control valve is opened.
When engine is in turbo boost conditions, valve control motor 9 controls the first air intake control valve 11 with air inlet valve control motor 8, first exhaust control valve 12 is opened in exhaust, and the second air intake control valve 10, second exhaust control valve 13 are closed.
Engine natural aspiration is with turbo boost conditions handoff procedure, and exhaust valve control motor 9 also needs synchronization action with 8 two motors of air inlet valve control motor.
General turbocharger needs just to work after 2000 turns, so ensureing that before 2000 turns engine is in natural aspiration state, allow waste gas without turbine 15, thus reduce exhaust back pressure, fresh air is without compressor 14, air inlet pipeline also can shorten, thus reduces admission pressure loss.After rotating speed is more than 2000 turns, ECU sends action command, and exhaust valve control motor 9 drives the first air intake control valve 11 with air inlet valve control motor 8, second air intake control valve 10, first exhaust control valve 12, second exhaust control valve 13 action, natural aspiration pattern proceed to turbocharging pattern.
Therefore native system advantage is: when vehicle is chronically at speed operation, and such as congested link, turbocharger is the most inoperative, so being scheduled under natural aspiration pattern by engine lock.When vehicle is in high-speed working condition, on highway, booster can work, so being scheduled under boost mode by engine lock.
Native system also can arrange MANUAL CONTROL mode, i.e. cancels exhaust valve control motor 9 and air inlet valve control motor 8, realizes engine with manual switching each branch upper air control valve, gas exhausting valve mode and works with turbocharging pattern with natural aspiration pattern.

Claims (3)

  1. The engine intake and exhaust system of the most changeable pattern, including gas handling system, gas extraction system and engine body (1), it is characterised in that:
    Gas handling system, including: inlet manifold (4) and inlet manifold (3)；Described inlet manifold's head end is manifold structure, and stage casing is divided into air inlet branch (5) side by side, and end is accumulated manifold structure by air inlet branch (5) again；It is respectively provided with air intake control valve on described air inlet branch (5), one of them air inlet branch arranges compressor (14)；The end of described inlet manifold is connected with engine body (1) by inlet manifold (3)；
    Give vent to anger system, including: exhaust main (6) and exhaust manifold (2)；Described exhaust main (6) head end is manifold structure, and stage casing is divided into Exhaust branch (14) side by side, and end is accumulated manifold structure by Exhaust branch (7) again；Described Exhaust branch is respectively provided with gas exhausting valve on (7), and one of them Exhaust branch arranges turbine (15)；The end of described exhaust main is connected with engine body (1) by exhaust manifold (2)；
    During natural aspiration mode of operation, close the air intake control valve arranging in the air inlet branch of compressor (14), the gas exhausting valve arranged on the Exhaust branch of turbine (15), open other air intake control valves, gas exhausting valve；
    During turbocharging mode of operation, the gas exhausting valve open the air intake control valve in the air inlet branch that compressor (14) is set, arranging on the Exhaust branch of turbine (15), close other air intake control valves, gas exhausting valve.
  2. The engine intake and exhaust system of changeable pattern the most as claimed in claim 1, it is characterised in that:
    Described inlet manifold stage casing is divided into the first air inlet branch, the second air inlet branch side by side, and end is accumulated manifold structure by the first air inlet branch and the second air inlet branch again；The first air intake control valve (11) and described compressor (14) is set gradually in described first air inlet branch；In described second air inlet branch, the second air intake control valve (10) is set；
    Described exhaust main stage casing is divided into first exhaust branch, second exhaust branch side by side, end again by ranked first exhaust point with second exhaust branch accumulate manifold structure；First exhaust control valve (12) and described turbine (15) is set gradually in described first exhaust branch；Second exhaust control valve (13) is set in described second exhaust branch；
    During natural aspiration mode of operation, the first air intake control valve, first exhaust control valve are closed, and the second air intake control valve, second exhaust control valve are opened；
    During turbocharging mode of operation, the first air intake control valve, first exhaust control valve are opened, and the second air intake control valve, second exhaust control valve are closed.
  3. The engine intake and exhaust system of changeable pattern the most as claimed in claim 2, it is characterised in that:
    Described first air intake control valve (11) is controlled by an air inlet valve control motor (8) by intake valve connecting shaft with the second air intake control valve (10)；When air inlet valve control motor (8) controls the increase of the first air intake control valve (11) aperture, control the second air intake control valve (10) aperture simultaneously and reduce；
    Described first exhaust control valve (12) is controlled by exhaust valve control motor (9) by air bleeding valve connecting shaft with second exhaust control valve (13)；When exhaust valve control motor (9) controls the increase of first exhaust control valve (12) aperture, control second exhaust control valve (13) aperture simultaneously and reduce.
CN201610271458.XA 2016-04-28 2016-04-28 Engine intake and exhaust system with switchable mode Pending CN105927428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610271458.XA CN105927428A (en) 2016-04-28 2016-04-28 Engine intake and exhaust system with switchable mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610271458.XA CN105927428A (en) 2016-04-28 2016-04-28 Engine intake and exhaust system with switchable mode

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CN105927428A true CN105927428A (en) 2016-09-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106704057A (en) * 2017-01-20 2017-05-24 李桂江 Parallel automobile engine air intake system
CN113790100A (en) * 2021-08-20 2021-12-14 清华大学 Diesel power generation unit and hybrid vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101215989A (en) * 2008-01-17 2008-07-09 上海交通大学 Internal combustion engine exhaust turbine pressurization system possessing natural air inlet device
US20090018753A1 (en) * 2007-07-12 2009-01-15 Martin Muller System and method for a volumetric efficiency model for all air induction configurations
CN102200061A (en) * 2010-03-25 2011-09-28 福特全球技术公司 Turbocharged engine and method for controlling same
CN103052782A (en) * 2010-06-07 2013-04-17 阿尔塞特知识产权公司 Bi-fuel engine with increased power
CN103352754A (en) * 2013-07-03 2013-10-16 哈尔滨工程大学 Multi-mode large and small turbocharger diesel engine sequential supercharging structure
US8713937B2 (en) * 2010-09-09 2014-05-06 Ford Global Technologies, Llc Method and system for a turbocharged engine
US9046032B2 (en) * 2013-03-15 2015-06-02 GM Global Technology Operations LLC Stratified charge engine with turbocharger
CN105508035A (en) * 2016-01-13 2016-04-20 哈尔滨工程大学 Supercharged diesel engine multi-mode switch supercharging structure and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090018753A1 (en) * 2007-07-12 2009-01-15 Martin Muller System and method for a volumetric efficiency model for all air induction configurations
CN101215989A (en) * 2008-01-17 2008-07-09 上海交通大学 Internal combustion engine exhaust turbine pressurization system possessing natural air inlet device
CN102200061A (en) * 2010-03-25 2011-09-28 福特全球技术公司 Turbocharged engine and method for controlling same
CN103052782A (en) * 2010-06-07 2013-04-17 阿尔塞特知识产权公司 Bi-fuel engine with increased power
US8713937B2 (en) * 2010-09-09 2014-05-06 Ford Global Technologies, Llc Method and system for a turbocharged engine
US9046032B2 (en) * 2013-03-15 2015-06-02 GM Global Technology Operations LLC Stratified charge engine with turbocharger
CN103352754A (en) * 2013-07-03 2013-10-16 哈尔滨工程大学 Multi-mode large and small turbocharger diesel engine sequential supercharging structure
CN105508035A (en) * 2016-01-13 2016-04-20 哈尔滨工程大学 Supercharged diesel engine multi-mode switch supercharging structure and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106704057A (en) * 2017-01-20 2017-05-24 李桂江 Parallel automobile engine air intake system
CN113790100A (en) * 2021-08-20 2021-12-14 清华大学 Diesel power generation unit and hybrid vehicle

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Application publication date: 20160907