WO2014171907A1 - Système de recirculation des gaz d'échappement à débit variable - Google Patents

Système de recirculation des gaz d'échappement à débit variable Download PDF

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Publication number
WO2014171907A1
WO2014171907A1 PCT/TR2014/000134 TR2014000134W WO2014171907A1 WO 2014171907 A1 WO2014171907 A1 WO 2014171907A1 TR 2014000134 W TR2014000134 W TR 2014000134W WO 2014171907 A1 WO2014171907 A1 WO 2014171907A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
exhaust manifold
recirculation system
intake manifold
exhaust
Prior art date
Application number
PCT/TR2014/000134
Other languages
English (en)
Inventor
Cengizhan CENGIZ
Sinan EROGLU
Ilter HAYIRSEVER
Kayhan OZDEMIR
Original Assignee
Ford Otomotiv Sanayi Anonim Sirketi
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 Ford Otomotiv Sanayi Anonim Sirketi filed Critical Ford Otomotiv Sanayi Anonim Sirketi
Publication of WO2014171907A1 publication Critical patent/WO2014171907A1/fr

Links

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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
    • F02M26/43—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves

Definitions

  • the present invention relates a recirculation system which is designed to provide EGR flow with variable flow rate to intake manifold and its control in engines with EGR system.
  • EGR exhaust Gas Recirculation
  • the gas used in EGR system generally helps to reduce NOx emissions.
  • exhaust gas is sent to the intake manifold via a valve in EGR system connected to exhaust manifold.
  • exhaust gas cannot be sent to the intake manifold sufficiently especially in case high EGR is required depending on the engine operation point.
  • the flow of the EGR gas to intake manifold is only possible with the pressure in the exhaust manifold being higher than the pressure in the intake manifold (a certain pressure difference), furthermore the pressure difference in several operating points makes impossible to send high EGR rates. For this reason EGR gas cannot be sent to the intake manifold in demanded amounts at certain operating points of the engine.
  • United States Patent document no US2011253113 discloses a system and a method for operating an engine.
  • the gases coming out of one or more than one donor cylinders can be directed to secondary exhaust manifolds via a control member such as a valve.
  • the aid control member can change amounts of these EGR gases.
  • the objective of the present invention is to provide a recirculation system which enables a desired amount of EGR gas to be fed to the intake manifold at each operating point of the engine.
  • Another objective of the present invention is to provide a recirculation system which enables the engine to cut EGR flow, provide EGR in variable flow rate and allow EGR flow in high levels when it is necessary independent from the intake- exhaust manifold pressure.
  • Yet another objective of the present invention is to provide a recirculation system which enables to control NOx emission actively and the HCCI (Homogenous Charge Compression Ignition) engines to operate.
  • HCCI Homogenous Charge Compression Ignition
  • Figure 1 is the schematic view of a recirculation system.
  • Figure 2 is the schematic view wherein the routing valve on side of the exhaust manifold is open.
  • Figure 3 is the schematic view wherein the routing valve on side of the intake manifold is open.
  • FIG. 4 is the schematic view wherein the routing valve on both sides is open.
  • the components shown in the figures are each given reference numbers as follows:
  • Plate A recirculation system (1) which is designed to provide EGR flow with variable flow rate to intake manifold and its control in engines with EGR system, essentially comprises
  • At least one cylinder (2) which is located in the vehicle engine and enables air- fuel mixture to burn
  • At least one intake manifold (4) which enables air inlet to the cylinder (2) for combustion
  • At least one air inlet (7) which is adapted for air intake to the cylinder (2)
  • at least one exhaust gas inlet (8) which is adapted at the exit of the exhaust manifold (3) for exhaust gas to enter inside the intake manifold (4)
  • At least one plate (10) which is located on the routing vanes (9) and allows gas passage according to the portion that it is rotated around its own axis.
  • exhaust manifold (3) on one side of the cylinders (2) of the internal combustion engines and an intake manifold (4) on the other side.
  • Air, fuel and gas mixture is transferred inside the cylinder (2) from intake manifold (4), and the burnt gases generated from this mixture are discharged from the exhaust manifold (3).
  • the burnt gases are discharged from the exhaust manifold outlet (5) in the exhaust manifold (3) and released to outer environment from here.
  • some part of the gas going out of the exhaust manifold outlet (5) is routed to intake manifold (4) to be sent to the cylinder (2) again.
  • This routing process is realized as follows:
  • the gases burnt in the cylinders (2) in a preferred number are routed to the exhaust manifold (3) and come to the exhaust manifold outlet (5). There, they meet with the routing valves (9).
  • One of the routing routes (9) is placed between the exhaust manifold (5) and allows the passage of the burnt gas in direction of the intake manifold (4).
  • the other routing valve (9) is placed between the exhaust manifold outlet (5) and exhaust manifold (3) and allows the gas to move in direction of the exhaust manifold (3).
  • the routing valves (9) can be open or closed in three different ways. One of them is completely open position, the other one is completely closed position and the last one is partially open position.
  • the routing valve (9) which allows the gas to move in direction of the exhaust manifold (3) in completely open position is in closed position and the routing valve (9) which allows the gas to move in direction of the intake manifold (4) is in completely open position.
  • the routing valve (9) which allows the gas to move in direction of the exhaust manifold (3) in completely closed position is in open position and the routing valve (9) which allows the gas to move in direction of the intake manifold (4) is in completely closed position.
  • the whole of the gas present in the exhaust manifold outlet (5) moves in direction of the exhaust manifold (3).
  • the routing valve (9) which allows the gas to move in direction of the exhaust manifold (3) in partially and the routing valve (9) which allows the gas to move in direction of the intake manifold (4) is in open position in a preferred rate.
  • some part of the gas present in the exhaust manifold outlet (5) moves in direction of the exhaust manifold (3), and the other part moves in direction of the intake manifold (4).
  • the gas will move is adjusted via the plates (10) located on the routing valves (9).
  • the plate (10) rotating around its own axis the movement of the gas in direction of the intake manifold (4) can be changed in a preferred rate.
  • the air coming from the air inlet (7) and the burnt gas coming from the routing valve (9) are combined in the intake manifold (4) and combustion is provided again by sending them to the cylinder (2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

La présente invention concerne un système de recirculation (1) qui est conçu pour fournir un écoulement de RGE (EGR pour recirculation des gaz d'échappement) à débit variable au collecteur d'admission et sa commande dans des moteurs dotés d'un système RGE et comprenant au moins deux soupapes d'acheminement (9) dont l'une est sur l'évacuation du collecteur d'échappement (5) et l'autre est située du côté de l'admission des gaz d'échappement (8) et permettant aux gaz sortant du collecteur d'échappement (3) d'être transférés vers le cylindre (2) selon une quantité souhaitée.
PCT/TR2014/000134 2013-04-16 2014-04-09 Système de recirculation des gaz d'échappement à débit variable WO2014171907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2013/04572 2013-04-16
TR201304572 2013-04-16

Publications (1)

Publication Number Publication Date
WO2014171907A1 true WO2014171907A1 (fr) 2014-10-23

Family

ID=51176444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2014/000134 WO2014171907A1 (fr) 2013-04-16 2014-04-09 Système de recirculation des gaz d'échappement à débit variable

Country Status (1)

Country Link
WO (1) WO2014171907A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU170752U1 (ru) * 2016-11-02 2017-05-05 Публичное акционерное общество "КАМАЗ" Двигатель внутреннего сгорания с системой рециркуляции отработавших газов
CN111779582A (zh) * 2020-06-23 2020-10-16 河南柴油机重工有限责任公司 一种柴油机的egr系统的控制方法、系统及应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2025912A1 (fr) * 2007-07-30 2009-02-18 Peugeot Citroen Automobiles SA Circuit des gaz d'échappement d'un moteur
FR2920834A1 (fr) * 2007-09-12 2009-03-13 Valeo Sys Controle Moteur Sas Dispositif et procede de recirculation des gaz d'echappement d'un moteur thermique
US20110253113A1 (en) 2008-07-31 2011-10-20 General Electric Company Methods and systems for operating an engine
WO2011130015A2 (fr) * 2010-04-14 2011-10-20 Borgwarner Inc. Soupape multifonction
US20120260897A1 (en) * 2011-04-13 2012-10-18 GM Global Technology Operations LLC Internal Combustion Engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2025912A1 (fr) * 2007-07-30 2009-02-18 Peugeot Citroen Automobiles SA Circuit des gaz d'échappement d'un moteur
FR2920834A1 (fr) * 2007-09-12 2009-03-13 Valeo Sys Controle Moteur Sas Dispositif et procede de recirculation des gaz d'echappement d'un moteur thermique
US20110253113A1 (en) 2008-07-31 2011-10-20 General Electric Company Methods and systems for operating an engine
WO2011130015A2 (fr) * 2010-04-14 2011-10-20 Borgwarner Inc. Soupape multifonction
US20120260897A1 (en) * 2011-04-13 2012-10-18 GM Global Technology Operations LLC Internal Combustion Engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU170752U1 (ru) * 2016-11-02 2017-05-05 Публичное акционерное общество "КАМАЗ" Двигатель внутреннего сгорания с системой рециркуляции отработавших газов
CN111779582A (zh) * 2020-06-23 2020-10-16 河南柴油机重工有限责任公司 一种柴油机的egr系统的控制方法、系统及应用

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