KR890002525A - 디이젤엔진의 배기정화장치 - Google Patents

디이젤엔진의 배기정화장치 Download PDF

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Publication number
KR890002525A
KR890002525A KR1019880008638A KR880008638A KR890002525A KR 890002525 A KR890002525 A KR 890002525A KR 1019880008638 A KR1019880008638 A KR 1019880008638A KR 880008638 A KR880008638 A KR 880008638A KR 890002525 A KR890002525 A KR 890002525A
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KR
South Korea
Prior art keywords
exhaust gas
filter
diesel engine
sectional area
cross
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Application number
KR1019880008638A
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English (en)
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KR930000473B1 (ko
Inventor
요오이찌로 고오노
야스아끼 구마가이
노부아끼 다께다
히로시 오기다
Original Assignee
나까무라 켄조
미쯔비시지도오샤고오교오 가부시기가이샤
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Priority claimed from JP1987110991U external-priority patent/JPH0612172Y2/ja
Priority claimed from JP15927287U external-priority patent/JPH068257Y2/ja
Priority claimed from JP1987159273U external-priority patent/JPH0163715U/ja
Application filed by 나까무라 켄조, 미쯔비시지도오샤고오교오 가부시기가이샤 filed Critical 나까무라 켄조
Publication of KR890002525A publication Critical patent/KR890002525A/ko
Application granted granted Critical
Publication of KR930000473B1 publication Critical patent/KR930000473B1/ko

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/031—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start
    • F01N3/032—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start during filter regeneration only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/04—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device during regeneration period, e.g. of particle filter
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/10—Residue burned
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/30—Exhaust treatment

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

내용 없음

Description

디이젤엔진의 배기정화장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 요부를 표시한 설명도.
제2도는 전체시스템을 표시한 설명도.
제3도는 전기히이터의 설명도.

Claims (8)

  1. 디이젤엔진의 배기통로에 동 디이젤엔진의 배기가스속에 함유되는 미립자를 포집하는 미립자트랩을 착설하고, 동 미립자트랩을 내부에 수용하는 캐닝용기를 장착하고, 상기 미립자트랩의 상류쪽에 있어서 상기 캐닝용기내에 상기 포집된 미립자를 착화연소시키는 고온의 배기가스를 얻는 전기히이터를 배설하고, 동 전기히이터의 상류쪽에 있어서 상기 캐닝용기내에 상기 전기히이터의 복사열을 흡수하여 이 열을 상기 캐닝용기의 상류쪽으로부터 상기 미립자트랩으로 유입하는 배기가스에 방출하는 전열변환소자를 정착한 것을 특징으로 하는 디이젤엔지의 배기정화장치.
  2. 제1항에 있어서, 상기 전열변환소자가 다수의 배기가스통로의 집합체에 의해서 형성되고, 상기 전열변환소자의 하부쪽에 형성되는 상기 집합체의 단위 단면적당의 상기 배기가스통로부단면적(공극률(메시))이 상부쪽에 형성되는 상기 집합체의 단위 단면적당의 상기 배기가스 통로부단면적(공극률(메시))보다 크게 설정되는 것을 특징으로 하는 디이젤엔진의 배기정화장치.
  3. 제1항또는 제2항에 있어서, 상기 전열변환소자가 세라믹다공질체를 벌집구조 형상으로 형성된 것으로 이루어진 것을 특징으로 하는 디이젤엔진의 배기정화장치.
  4. 제1항에 있어서, 상기 전열변환소자가 다수가 배기가스통로를 가진 세라믹다공질체로 이루어지고, 또 상기 전열변환소자가 2개의 단면반원형의 것을 아래위로 조합하여 일체화하여 구성되고, 하부의 세라믹다공질체에 의해 형성되는 단위단 면적당의 상기 배기가스통로부의 단면적(공극률(메시))를 상부의 세라믹다공질체에 의해 형성되는 단위단면적당의 상기 배기가스통로부의 단면적(공급률(메시))보다 크게 하는 것을 특징으로 하는 디이젤엔진의 배기정화장치.
  5. 제1항또는 제2항에 있어서, 상기 전열변환소자가 세라믹다공질체의 가는 선을 무질서한 상태로 절곡해서 맞포개어 형성되고, 충분히 통기성을 유지함과 동시에 전체적으로 소정의 두께를 가진 것을 특징으로 하는 디이젤엔진의 배기정화장치.
  6. 제1항에 있어서, 상기 캐닝용기의 상류쪽에 절환밸브를 착설하여 상기 캐닝용기를 바이패스하는 분기관을 형성하고, 상기 캐닝용기의 입구부의 근처에 에어펌프로부터 토출되는 공기의 분출구를 형성하고, 상기 절환밸브의 하류쪽의 배기통로에 압력센서를 착설하고, 또 상기 압력센서에 의해서 소정치 이상의 압력을 검지하였을 때 상기 미립자를 연소시키기 위하여 상기 에어펌프를 구동하고 상기 히이터에 통전하여 상기 절환밸브를 절환하여서 배기가스를 바이패스시키는 제어회로를 구비한 것을 특징으로 하는 디이젤엔진의 배기정화장치.
  7. 제1항에 있어서, 상기 미립자트랩이 통형상의 필터이며, 동필터가 동심형상으로 서로 미소한 간극을 감지고 감합하는 복수개의 필터편으로 형성되고, 각 필터편의 상기 미소한 간극의 적어도 길이방향에 따르는 양단부에 탄성지지부재를 개재시키는 것을 특징으로 하는 디이젤엔진의 배기정화장치.
  8. 제7항에 있어서, 상기 필터가 중심부를 형성하는 막대형상의 중심필터편과, 동 중심필터편에 미소한 간극을 가지고 겉에 끼워지는 중간필터편과, 동중간필터편에 미소한 간극을 가지고 겉에 끼워지는 바깥쪽 필터편과의 3개의 동심형상을 이루는 필터편에 의해서 형성되고, 이들 각각의 필터편은 다수의 배기가스통로를 가진 세라믹다공질체로 구성되고, 또 상기 각 미소한 간극에는 필터의 전체길이에 걸쳐서 각각 상기 탄성지지부재가 배설되어 있는 것을 특징으로 하는 디이젤엔진의 배기정화장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880008638A 1987-07-20 1988-07-12 디이젤엔진의 배기정화장치 KR930000473B1 (ko)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP1987110991U JPH0612172Y2 (ja) 1987-07-20 1987-07-20 パティキュレートトラップの再生装置
JP??62-110991(U) 1987-07-20
JP?62-110991 1987-07-20
JP15927287U JPH068257Y2 (ja) 1987-10-20 1987-10-20 微粒子捕集浄化装置
JP?62-159272 1987-10-20
JP??62-159273(U) 1987-10-20
JP?62-159273 1987-10-20
JP1987159273U JPH0163715U (ko) 1987-10-20 1987-10-20
JP??62-159272(U) 1987-10-20

Publications (2)

Publication Number Publication Date
KR890002525A true KR890002525A (ko) 1989-04-10
KR930000473B1 KR930000473B1 (ko) 1993-01-21

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Application Number Title Priority Date Filing Date
KR1019880008638A KR930000473B1 (ko) 1987-07-20 1988-07-12 디이젤엔진의 배기정화장치

Country Status (3)

Country Link
US (1) US4881959A (ko)
KR (1) KR930000473B1 (ko)
DE (1) DE3824578A1 (ko)

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