エンジンのegr装置

Exhaust gas recirculation system for engine

Abstract

PROBLEM TO BE SOLVED: To reduce the dispersion of an EGR rate between cylinders by accelerating mixing with fresh air in the case of leading EGR gas from an EGR gas blowoff port into a collector. SOLUTION: An EGR blowoff port 7 is formed of a cylindrical member 8 (8a, 8b), and a fresh air reservoir 12 communicated with the interior of a collector 4 is formed between the outer periphery of the cylindrical member 8 (8a, 8b) and base material (hole 9) of an intake manifold 2. The peripheral wall of the cylindrical member 8 is provided with a fresh air lead-in hole 13 opened to lead fresh air to the inside from the fresh air reservoir 12. EGR gas is therefore diffused rapidly in the collector 4 and equally distributed to each branch pipe so as to improve the dispersion of an EGR rate between cylinders. As a result, combustion stability is improved, exhaust emission is reduced, and fuel consumption is improved. COPYRIGHT: (C)1999,JPO
(57)【要約】 【課題】 コレクタ4内へのEGRガス吹出し口7か ら、EGRガスを導入する場合に、新気との混合を促進 して、EGR率の気筒間バラツキを低減する。 【解決手段】 EGRガス吹出し口7を筒状部材8によ り構成し、該筒状部材8の外周と吸気マニホールド2の 母材(穴9)との間にコレクタ4内と連なる新気溜まり 12を形成する。また、筒状部材8の周壁に新気溜まり 12から内部に新気を導入する新気導入孔13を開設す る。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (10)

    Publication numberPublication dateAssigneeTitle
    CN-102287296-ADecember 21, 2011东风汽车有限公司废气再循环混合器
    DE-102004021212-A1November 24, 2005Volkswagen AgVorrichtung zur Abgasrückführung
    EP-1122421-A3June 12, 2002FILTERWERK MANN & HUMMEL GmbHIntake conduit with integrated exhaust gas recirculation
    JP-2006152843-AJune 15, 2006Sanwa Seiki Co Ltd, 三輪精機株式会社Exhaust gas recirculation device
    JP-2010053831-AMarch 11, 2010Daikyonishikawa Corp, ダイキョーニシカワ株式会社Intake manifold
    JP-2012052481-AMarch 15, 2012Denso Corp, 株式会社デンソーEgrガス導入装置
    JP-2012062902-AMarch 29, 2012Aisin Seiki Co Ltd, Toyota Motor Corp, アイシン精機株式会社, トヨタ自動車株式会社吸気経路ガス導入構造及び吸気マニホールド
    KR-100764864-B1October 09, 2007현대자동차주식회사Dispersion absence of intelligence egrgas
    US-6422221-B2July 23, 2002Filterwerk Mann & Hummel GmbhIntake manifold with integrated exhaust gas recirculation system
    WO-0125609-A1April 12, 2001Siemens Canada LimitedSysteme de recirculation des gaz d'echappement