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GB201210219D0 - Method for managing a threshold temerature control in an internal combustion engine - Google Patents

Method for managing a threshold temerature control in an internal combustion engine

Info

Publication number
GB201210219D0
GB201210219D0 GBGB1210219.0A GB201210219A GB201210219D0 GB 201210219 D0 GB201210219 D0 GB 201210219D0 GB 201210219 A GB201210219 A GB 201210219A GB 201210219 D0 GB201210219 D0 GB 201210219D0
Authority
GB
United Kingdom
Prior art keywords
egr
cooling
valve
engine
coolant
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.)
Granted
Application number
GBGB1210219.0A
Other versions
GB2502833B (en
GB2502833A (en
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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 GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to GB1210219.0A priority Critical patent/GB2502833B/en
Publication of GB201210219D0 publication Critical patent/GB201210219D0/en
Publication of GB2502833A publication Critical patent/GB2502833A/en
Application granted granted Critical
Publication of GB2502833B publication Critical patent/GB2502833B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M26/45—Sensors specially adapted for EGR systems
    • F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
    • F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • 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
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • 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
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • 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
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/33—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage controlling the temperature of the recirculated gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

A cooling circuit 705 for an EGR system having an EGR valve (320,fig.1) and an EGR cooler 310, comprises an EGR cooler electric valve 760, an EGR cooler pump 770, an EGR cooler radiator 780 and an EGR water temperature sensor 795, such that the EGR cooling system is essentially a closed circuit being connected to a coolant system 700 of an internal combustion engine 110 by means of the electric valve 760, which allows the EGR cooling circuit 705 to be coupled to, or decoupled from, the engine coolant system 700. During early engine warm-up, the EGR cooler electric valve 760 and EGR cooler pump 770 are switched off. When the engine water temperature reaches a threshold temperature, eg 60oC, below which EGR cooling is inefficient eg because of condensation of HC on the heat exchanger surfaces, the valve 760 opens allowing coolant from the engine cooling system 700 to enter the EGR cooling circuit 705. When EGR coolant temperature is higher than the threshold temperature, the valve 760 is closed and the pump 770 is switched on, allowing EGR cooling to be controlled independently.
GB1210219.0A 2012-06-06 2012-06-06 Exhaust gas recirculation (EGR) cooling system Expired - Fee Related GB2502833B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1210219.0A GB2502833B (en) 2012-06-06 2012-06-06 Exhaust gas recirculation (EGR) cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1210219.0A GB2502833B (en) 2012-06-06 2012-06-06 Exhaust gas recirculation (EGR) cooling system

Publications (3)

Publication Number Publication Date
GB201210219D0 true GB201210219D0 (en) 2012-07-25
GB2502833A GB2502833A (en) 2013-12-11
GB2502833B GB2502833B (en) 2017-07-12

Family

ID=46605690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1210219.0A Expired - Fee Related GB2502833B (en) 2012-06-06 2012-06-06 Exhaust gas recirculation (EGR) cooling system

Country Status (1)

Country Link
GB (1) GB2502833B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609713A (en) * 2015-10-19 2017-05-03 北汽福田汽车股份有限公司 A method and a device for reducing NOx in waste gas and an exhaust gas recirculation system
GB2546732A (en) 2016-01-21 2017-08-02 Gm Global Tech Operations Llc A turbocharged automotive system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020951A1 (en) * 2005-07-28 2007-02-01 Audi Ag Cooling system for a vehicle and method for operating a cooling system
GB2444948A (en) * 2006-12-20 2008-06-25 Concentric Pumps Ltd Automotive engine cooling system comprising separate first and second fluid flow circuits
US20110041816A1 (en) * 2009-08-24 2011-02-24 International Engine Intellectual Property Company, Llc Apparatus and Method for Protecting Against Fouling of an Exhaust Gas Recirculation Valve
DE102010055072A1 (en) * 2010-12-18 2012-06-21 Volkswagen Ag Cooling circuit for an internal combustion engine with an exhaust gas recirculation and method for operating an internal combustion engine with such a cooling circuit

Also Published As

Publication number Publication date
GB2502833B (en) 2017-07-12
GB2502833A (en) 2013-12-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20171012