WO2009008188A1 - Engine - Google Patents

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Info

Publication number
WO2009008188A1
WO2009008188A1 PCT/JP2008/052942 JP2008052942W WO2009008188A1 WO 2009008188 A1 WO2009008188 A1 WO 2009008188A1 JP 2008052942 W JP2008052942 W JP 2008052942W WO 2009008188 A1 WO2009008188 A1 WO 2009008188A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
supercharge
engine
pressure
intake passage
Prior art date
Application number
PCT/JP2008/052942
Other languages
French (fr)
Japanese (ja)
Inventor
Tadao Okazaki
Tetsuya Kosaka
Satoshi Sugimoto
Tadao Yamato
Yoshikazu Takemoto
Yuzo Umeda
Original Assignee
Kubota Corporation
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 Kubota Corporation filed Critical Kubota Corporation
Publication of WO2009008188A1 publication Critical patent/WO2009008188A1/en

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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • 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
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers

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)
  • Supercharger (AREA)

Abstract

An engine in which hunting of engine rotation can be suppressed. A supercharger (30) driven with exhaust energy performs supercharge in the intake passage, a pneumatic valve actuator (8) is employed for driving an EGR valve (9), the intake passage is linked to the valve action pressure chamber (34) of the valve actuator (8) through a supercharge pressure transmission passage (20), valve close state of the EGR valve (9) is sustained by a valve close urging means (9b) when the valve action pressure of the valve action pressure chamber (34) is lower than a predetermined level, otherwise the EGR valve (9) is opened with the valve action pressure of the valve action pressure chamber (34). In such an engine, a resistor (21) becoming the passing resistance of a transmission medium is provided in the way of the supercharge pressure transmission passage (20), and follow-up performance of open/close action of the EGR valve (9) for variation in supercharge pressure in the intake passage is made to fall by the resistor (21).
PCT/JP2008/052942 2007-07-11 2008-02-21 Engine WO2009008188A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007181888A JP4850790B2 (en) 2007-07-11 2007-07-11 engine
JP2007-181888 2007-07-11

Publications (1)

Publication Number Publication Date
WO2009008188A1 true WO2009008188A1 (en) 2009-01-15

Family

ID=40228377

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052942 WO2009008188A1 (en) 2007-07-11 2008-02-21 Engine

Country Status (2)

Country Link
JP (1) JP4850790B2 (en)
WO (1) WO2009008188A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2016042930A1 (en) * 2014-09-16 2017-04-27 富士フイルム株式会社 Fiber-reinforced composite material and method for producing fiber-reinforced composite material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011202506A (en) * 2008-07-23 2011-10-13 Kubota Corp Diesel engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185120U (en) * 1974-12-27 1976-07-08
JPS5395428A (en) * 1977-01-31 1978-08-21 Nissan Motor Co Ltd Exhaust reflux controller
JPS54113915U (en) * 1978-01-31 1979-08-10
JPS60195955U (en) * 1984-06-06 1985-12-27 トヨタ自動車株式会社 EGR control device for turbocharged engine
JPS62165565A (en) * 1986-01-16 1987-07-22 Toyota Motor Corp Exhaust gas recirculation control method for diesel engine
JP2007085180A (en) * 2005-09-20 2007-04-05 Kubota Corp Engine with supercharger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185120A (en) * 1975-01-24 1976-07-26 Nippon Denso Co JIDOSHAYOINDO JIDOSHOKOSOCHI
JPS54113915A (en) * 1978-02-24 1979-09-05 Maeda Construction Pillar row system underground continuous wall constructing method
JPS60195955A (en) * 1984-03-19 1985-10-04 Hitachi Ltd Semiconductor device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185120U (en) * 1974-12-27 1976-07-08
JPS5395428A (en) * 1977-01-31 1978-08-21 Nissan Motor Co Ltd Exhaust reflux controller
JPS54113915U (en) * 1978-01-31 1979-08-10
JPS60195955U (en) * 1984-06-06 1985-12-27 トヨタ自動車株式会社 EGR control device for turbocharged engine
JPS62165565A (en) * 1986-01-16 1987-07-22 Toyota Motor Corp Exhaust gas recirculation control method for diesel engine
JP2007085180A (en) * 2005-09-20 2007-04-05 Kubota Corp Engine with supercharger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2016042930A1 (en) * 2014-09-16 2017-04-27 富士フイルム株式会社 Fiber-reinforced composite material and method for producing fiber-reinforced composite material

Also Published As

Publication number Publication date
JP4850790B2 (en) 2012-01-11
JP2009019541A (en) 2009-01-29

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