[특허]Exhaust gas purification device for internal combustion engine

[미국특허] Exhaust gas purification device for internal combustion engine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01N-003/00
출원번호	US-0341037 (1999-07-01)
우선권정보	JP-0107575 (1997-04-24)
국제출원번호	PCT/JP98/01823 (1998-04-21)
§371/§102 date	19990701 (19990701)
국제공개번호	WO98/48153 (1998-10-29)
발명자 / 주소	Shinya Hirota JP Toshiaki Tanaka JP
출원인 / 주소	Toyota Jidosha Kabushiki Kaisha JP
대리인 / 주소	Kenyon & Kenyon
인용정보	피인용 횟수 : 31 인용 특허 : 9

초록 ▼

A particulate filter (18) is arranged in the exhaust passage of an engine. Only the inner wall surface of downstream end open cells (61d) of the particulate filter (18) is covered with a NOx adsorbent (62a), and the inner wall surface of the upstream end open cells (61u) is covered with a HC adsorbent (63a). The particulates in the exhaust gas are trapped in the HC adsorbent (63a) or the cell walls (60) of the particulate filter (18) and prevented from reaching the NOx adsorbent (62a). When the catalyst temperature is low, NOx in the in flowing exhaust gas is adsorbed in the NOx adsorbent (62a), and hydrocarbon (HC) is adsorbed in the HC adsorbent (63a). With the increase in the catalyst temperature, the adsorbed NOx is desorbed from the NOx adsorbent (62a), and the adsorbed HC is desorbed from the HC adsorbent (63a). This HC reduces the NOx desorbed from the NOx adsorbent (62a).

대표청구항 ▼

1. An exhaust gas purification device for an internal combustion engine having an exhaust passage, comprising:a filter arranged in said exhaust passage for trapping the particulates in the inflowing exhaust gas, said filter having an exhaust gas inflow surface and an exhaust gas outflow surface; and a NOx storing member arranged only on the exhaust gas outflow surface of the filter for temporarily storing NOx in the inflowing exhaust gas therein.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Abe Fumio (Handa JPX) Harada Takashi (Nagoya JPX) Ogawa Masato (Komaki JPX), Adsorbent-catalyst for exhaust gas purification, adsorbent for exhaust gas purification, system for exhaust gas purifica.
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Kurihara Mitsuo (Machida JPX) Sato Fumio (Kawasaki JPX) Iwasawa Yoshiyuki (Tokyo JPX) Koibuchi Nobutaka (Koganei JPX) Harada Hiroshi (Matsudo JPX), Apparatus for removing carbon particles from exhaust gas from internal combustion engine.
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Yamashita Tetsuya,JPX ; Tanaka Toshiaki,JPX ; Takeshima Shinichi,JPX ; Hirota Shinya,JPX ; Iwasaki Eiji,JPX ; Yoshizaki Kouji,JPX ; Ohashi Nobumoto,JPX ; Itoh Kazuhiro,JPX, Device for purifying exhaust gas of engine.
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Maaseidvaag Frode ; Hepburn Jeffrey Scott, Exhaust gas purification system for low emission vehicle.
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Aoki Takuya (Wako JPX) Shimasaki Yuichi (Wako JPX) Komatsuda Takashi (Wako JPX) Kato Hiroaki (Wako JPX) Saito Akihisa (Wako JPX) Oketani Toshikazu (Wako JPX), Exhaust gas-purifying device for internal combustion engines.
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Takeshima Shinichi (Susono JPX) Nakanishi Kiyoshi (Susono JPX) Iguchi Satoshi (Mishima JPX) Tanaka Toshiaki (Numazu JPX) Araki Yasushi (Susono JPX) Hirota Shinya (Susono JPX) Kobashi Kiyoshi (Mishima, Exhaust purification device of internal combustion engine.
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Takeshima Shinichi (Susono JPX) Seto Satomi (Gotemba JPX) Tanaka Toshiaki (Numazu JPX) Iguchi Satoshi (Mishima JPX) Nakanishi Kiyoshi (Susono JPX) Katoh Kenji (Shizuoka JPX), Exhaust purification device of internal combustion engine.
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Ito Yasushi,JPX ; Mashiki Zenichiro,JPX, Method of purifying the exhaust of an internal combustion engine.
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Takeshima Shinichi (Susono JPX) Seto Satomi (Gotenba JPX) Hirota Shinya (Susono JPX), NOx decreasing apparatus for an internal combustion engine.
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이 특허를 인용한 특허 (31) 인용/피인용 타임라인 분석

Szymkowicz, Patrick G., After-treatment system and method for reducing emissions in diesel engine exhaust.
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Herrick, Brett; Mitchell, Stephen L., Apparatus and system for enhancing aftertreatment regeneration.
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Schelling, Bernd; Bauer, Patrick; Oencel, Mehmet; Bauer, Ralph; Holst, Thomas; Hoegele, Georg, Arrangement and method for operating an exhaust gas post-treatment device.
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Khair,Magdi K.; Ferguson, III,Harley D., Control method for dual path NOx adsorber system.
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Hirota, Shinya; Tanaka, Toshiaki; Itoh, Kazuhiro; Nakatani, Koichiro; Kimura, Koichi, Device for purifying the exhaust gas of an internal combustion engine.
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Hirota, Shinya; Tanaka, Toshiaki; Nakatani, Koichiro; Itoh, Kazuhiro; Asanuma, Takamitsu; Kimura, Koichi, Device for purifying the exhaust gas of an internal combustion engine.
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Hammerle,Robert; Lambert,Christine, Diesel engine after treatment device for conversion of nitrogen oxide and particulate matter.
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Deeba, Michel, Diesel engine system comprising a soot filter and low temperature NOx trap.
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Tashiro, Yoshihisa; Imai, Takehito; Suzuki, Tsuneo; Ochi, Naofumi; Gabe, Masashi, Diesel particulate filter unit and regeneration control method of the same.
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Ng, Kwok Y.; Cowgill, Joel; Elnick, Rodney K., Engine assembly including centrally located fuel rail.
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Yoshida,Kohei; Takeshima,Shinichi, Exhaust emission control apparatus for internal combustion engine.
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Hirota, Shinya; Tanaka, Toshiaki; Itoh, Kazuhiro; Asanuma, Takamitsu; Nakatani, Koichiro; Kimura, Koichi, Exhaust emission control device of internal combustion engine.
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Kitahara, Yasuhisa, Exhaust gas purification apparatus for internal combustion engine and method thereof.
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Nakatani, Koichiro; Hirota, Shinya; Itoh, Kazuhiro; Asanuma, Takamitsu; Kimura, Koichi; Nakanishi, Kiyoshi; Tanaka, Toshiaki, Exhaust gas purification device.
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Nishiyama, Toshihiko, Exhaust gas purification system for internal combustion engine.
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Toshioka,Shunsuke; Kobayashi,Masaaki; Ohki,Hisashi; Yamaguchi,Masaaki; Hayashi,Kotaro, Exhaust gas purification system for internal combustion engine.
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Toshioka,Shunsuke; Kobayashi,Masaaki; Ohki,Hisashi; Yamaguchi,Masaaki; Hayashi,Kotaro, Exhaust gas purification system for internal combustion engine.
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Mikami, Akira; Hirota, Shinya; Itoh, Kazuhiro; Asanuma, Takamitsu; Kimura, Koichi; Toshioka, Shunsuke; Nakatani, Koichiro; Tanaka, Toshiaki; Gotoh, Masato; Ito, Takekazu, Exhaust gas purifier for internal combustion engine.
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Gieshoff, Jürgen; Votsmeier, Martin; Schütze, Frank-Walter; Pfeifer, Marcus; Lox, Egbert; Kreuzer, Thomas, Exhaust-gas purification system with particulate filter and method of operation thereof with improved regeneration of the particulate filter.
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Nakagawa, Shinji; Ohsuga, Minoru; Nagano, Masami, Method and apparatus for controlling an engine.
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Nevin, Ryan; Triana, Antonio; Dou, Danan; Tuken, Taner, Particulate filter ash loading prediction method and vehicle using same.
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Iwase, Katsunori; Toyama, Tetsuo; Ooyanagi, Shigeru; Nishijima, Yoshiaki; Okajima, Masahiro, Reducing agent forming device and exhaust gas control system using the same.
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Wang, Xinlei; Gui, Xinqun; Ren, Shouxian; Zhang, Guoqing, Soot burn-off control strategy for a catalyzed diesel particulate filter.
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Lewis, Donald J., System and method for controlling engine air/fuel ratio during hydrocarbon trap purging.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Exhaust gas purification device for internal combustion engine 원문보기