KR940019976A - 과급 기부 엔진 - Google Patents

과급 기부 엔진 Download PDF

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KR940019976A
KR940019976A KR1019940001892A KR19940001892A KR940019976A KR 940019976 A KR940019976 A KR 940019976A KR 1019940001892 A KR1019940001892 A KR 1019940001892A KR 19940001892 A KR19940001892 A KR 19940001892A KR 940019976 A KR940019976 A KR 940019976A
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engine
supercharger
exhaust gas
cylinder
egr
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KR1019940001892A
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KR100327842B1 (ko
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미쯔오 히토미
켄지 카시야마
슌지 마스다
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와다 요시히로
마쯔다 가부시기가이샤
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Priority claimed from JP01647793A external-priority patent/JP3384579B2/ja
Priority claimed from JP1647693A external-priority patent/JP3424249B2/ja
Application filed by 와다 요시히로, 마쯔다 가부시기가이샤 filed Critical 와다 요시히로
Publication of KR940019976A publication Critical patent/KR940019976A/ko
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Publication of KR100327842B1 publication Critical patent/KR100327842B1/ko

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0223—Variable control of the intake valves only
    • F02D13/0234—Variable control of the intake valves only changing the valve timing only
    • F02D13/0238—Variable control of the intake valves only changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/36—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type
    • F02B33/38—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type of Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0261—Controlling the valve overlap
    • 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
    • F02M26/03—EGR systems specially adapted for supercharged engines with a single mechanically or electrically driven intake charge 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
    • F02M26/17—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
    • F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0269—Controlling the valves to perform a Miller-Atkinson cycle
    • 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
    • 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
    • F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

흡기통로에 배치된 과급기를 가진 왕복피스톤형의 과급 기부 엔진에 있어서, 고부하시에 있어서의 과급 기로출측압력(P)의 대기압(P0)에 대한 압력(Υ=P/PO)와 엔진의 기하학적 압축비(ε)와, 실린더보어직경(Bmm)와의 관계는 다음식
Υ≥-0.29ε+6.0-0.023B
를 만족한다.

Description

과급 기부 엔진
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1도는 본 발명의 일실시예에 관한 과급 기부 엔진의 전체개략도,
제 6도는 MBT로부터의 지연량, 충전효율 및 압축비의 관계를 표시한 그래프.

Claims (17)

  1. 흡기통로에 배치된 과급기를 가진 왕복피스톤형의 과급 기부 엔진에 있어서, 고부하시에 있어서의 과급 기토출측압력(P)의 대기압(P0)에 대한 압력비(Υ=P/PO)와, 엔진의 기하학적 압축비(ε)와, 실린더보어직경(Bmm)와의 관계가 다음식
    Υ≥-0.29ε+6.0-0.022B
    를 만족하도록 설정된 것을 특징으로 하는 과급 기부 엔진.
  2. 제1항에 있어서, 피스톤스피드 Um이 Um=2.0×10,000mm/sec가 되는 엔진회전속도 Na가, 평균 흡기마하수 Mi가 Ni=0.5가 되는 엔진회전속도 Nb이상인 것을 특징으로 하는 과급 기부 엔진.
  3. 제1항에 있어서, 상기 실린더보어직경 B는 50mm≤B≤70mm로 설정되고, 피스톤스피드 Um이 Um=2.0×10,000mm/sec가 되는 엔진회전속도 Na로 표시되고, 평균흡기마하수 Mi가 Mi=0.5가 될 때, Na 및 Nb는 다음관계 : Na≥Nb ; Na-Nb≤2,000rpm ; Nb≥5,000rpm; 및 Na≤8,000rpm을 만족하도록 설정되고, 피스톤스트로우크 S의 상기 실린더보어직경 B에 대한 비는 S/B>1로 설정되며, 그리고 1개의 실린더의 배기량, 또는 단실용적은 150cc~400로 설정되는 것을 특징으로 하는 과급 기부 엔진.
  4. 제1항에 있어서, 한 개의 실린더에 2개 이상의 흡기밸브가 배치된 것을 특징으로 하는 과급 기부 엔진.
  5. 제1항에 있어서, 흡기밸브의 개방기간과 배기밸브의 개방기간과의 오버랩량은 크랭크각으로 20° 이상으로 설정되며, 그리고 다음식
    Υ≥-0.29ε+6.0-0.022B
    를 만족하는 것을 특징으로 하는 과급 기부 엔진.
  6. 제1항에 있어서, 흡기밸브의 폐쇄시키는 크랭크각으로 하사점(BDC)후 60°이상 지연되며, 그리고 다음식
    Υ≥-0.29ε+6.0-0.022B
    를 만족하는 것을 특징으로 하는 과급 기부 엔진.
  7. 제1항에 있어서, 적어도 고부하시에 실린더의 연소실로 배기가스를 환류하는 EGR수단을 포함하고, 배기가스가 상기 EGR수단에 의해 환류되는 EGR은 Re(%)로 표시되며, 다음식
    Υ×(1+Re/100)≥-0.29×ε+6.0-0.022B+0.0007Re/100
    을 만족하는 것을 특징으로 하는 과급 기부 엔진.
  8. 제1항에 있어서, 적어도 고부하시에 실린더의 연소실로 배기가스를 환류하는 EGR수단을 포함하고, 배기가스가 상기 EGR수단에 의해 환류되는 EGR율은 Re(%)로 표시되며, 다음식
    Re≥(9-ε)×3
    을 만족하는 것을 특징으로 하는 과급 기부 엔진.
  9. 흡기통로에 배치된 과급기를 가진 왕복 피스톤형의 과급 기부 엔진에 있어서, 적어도 고부하시에 엔진의 실린더내의 연소실로 배기가스를 환류하는 EGR수단을 구비하는 것을 특징으로 하는 과급 기부 엔진.
  10. 흡기통로에 배치된 과급기를 가진 왕복피스톤형의 과급 기부 엔진에 있어서, 적어도 고부하시에 엔진의 실린더내의 연소실로 배기가스를 환류하는 EGR수단을 구비하고, 피스톤스피드 Um-2.0×10,000/mm/sec가 되는 엔진회로속도 Na는 평균흡기마하수 Mi=0.5에 도달하는 엔진회전속도 Nb이상으로 설정되며, 그리고 엔진의 기하학적 압축비 ε와 EGR 수단에 의한 배기가스의 환류의 EGR율 Re(%)와의 관계는 다음식
    Re≥(9-ε)×3
    을 만족하는 것을 특징으로 하는 과급 기부 엔진.
  11. 제9항 또는 제10항에 있어서, 피스톤스트로우크 S의 상기 실린더보어직경 B의 비는 S/B>1로 설정되는 것을 특징으로 하는 과급 기부 엔진.
  12. 제9항 또는 제10항에 있어서, 상기 엔진회전속도 Na는 8,000rpm이하로 설정되는 것을 특징으로 하는 과급 기부 엔진.
  13. 흡기통로에 배치된 과급기를 가진 왕복 피스톤형의 과급 기부 엔진에 있어서, 적어도 고부하시에 엔진의 실린더내의 연소실로 배기가스를 환류하는 EGR수단을 구비하고,1개의 실린더의 배기량, 즉 단실용적은 400cc이하로 설정되며, 피스톤스트로우크 S의 상기 실린더보어직경 B에 대한 비는 S/B>1로 설정되며, 그리고 엔진의 기하학적 압축비 ε와 EGR수단에 의한 배기가스의 환류의 EGR율 Re(%)과의 관계는 다음식
    Re≥(9-ε)×3
    을 만족하는 것을 특징으로 하는 과급 기부 엔진.
  14. 흡기통로에 배치된 과급기를 가진 왕복피스톤형의 과급 기부 엔진에 있어서, 고부하시에 있어서의 과급 기로출축압력(P)의 대기압(P0)에 대한 압력비Υ와, 엔진의 기하학적 압축비 ε와, 상기 실린더보어직경 B(mm)와, 연료의 유탄가 Ro와의 관계는 다음식
    Υ≥-0.29ε+0.09+0.59Ro-0.022B
    를 만족하는 것을 특징으로 하는 과급 기부 엔진.
  15. 제7항 또는 제14항에 있어서, 적어도 고부하시에 엔진의 실린더내의 연소실로 배기가스를 환류하는 EGR수단을 포함하고, 배기가스가 상기 EGR수단에 의해 환류되는 EGR율은 Re(%)로 표시되며, 다음식
    Υ×(1+Re/100)≥-0.29×ε+(0.09+0.059Ro)-0.022B+0.00Re/100
    을 만족하는 것을 특징으로 하는 과급 기부 엔진.
  16. 제9항 또는 제10항에 있어서, 1개의 실린더의 배기량, 또는 단실용적은 400cc이하로 설정되는 것을 특징으로 하는 과급 기부 엔진.
  17. 제1항 또는 제13항에 있어서, 상기 실린더보어직경은 70mm이하로 설정되는 것을 특징으로 하는 과급 기부 엔진.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940001892A 1993-02-03 1994-02-02 과급엔진 KR100327842B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP01647793A JP3384579B2 (ja) 1993-02-03 1993-02-03 過給機付エンジン
JP93-16477 1993-02-03
JP1647693A JP3424249B2 (ja) 1993-02-03 1993-02-03 過給機付エンジン
JP93-16476 1993-02-03

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KR940019976A true KR940019976A (ko) 1994-09-15
KR100327842B1 KR100327842B1 (ko) 2002-06-20

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US (1) US5509394A (ko)
EP (1) EP0609837B1 (ko)
KR (1) KR100327842B1 (ko)
CN (1) CN1035206C (ko)
DE (1) DE69406560T2 (ko)

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CN1094789A (zh) 1994-11-09
DE69406560T2 (de) 1998-03-05
EP0609837B1 (en) 1997-11-05
CN1035206C (zh) 1997-06-18
KR100327842B1 (ko) 2002-06-20
DE69406560D1 (de) 1997-12-11
US5509394A (en) 1996-04-23
EP0609837A1 (en) 1994-08-10

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