作動ガス循環型エンジン

Working medium circulation type engine

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working medium circulation type engine suppressing a pump load. <P>SOLUTION: This working medium circulation type engine includes: a combustion chamber CC; a circulation path 20; a condensation means 60 provided in the circulation path 20 and condensing steam contained in exhaust gas to form condensed water; a condensed water storage means 65 storing the condensed water in an internal space; a condensed water discharge means 80 discharging the condensed water in the condensed water storage means 65 through a discharge section 81 and opening/closing the discharge section 81 by an opening/closing means 82; a condensed water supply means 90 forcibly feeding the condensed water in the condensed water storage means 65 by a pump 92 and supplying it to the inside of the circulation path 20; and a control means 72 controlling the condensed water discharge means 80 and condensed water supply means 90 and closing the discharge section 81 by the opening/closing means 82 when the condensed water in the condensed water storage means 65 is forcibly fed by the pump 92 and supplied to the inside of the circulation path 20. <P>COPYRIGHT: (C)2010,JPO&INPIT
【課題】ポンプ負荷を抑制することができる作動ガス循環型エンジンを提供する。 【解決手段】燃焼室CCと、循環経路20と、循環経路20に設けられ排気ガス中に含まれる水蒸気を凝縮して凝縮水とする凝縮手段60と、凝縮水を内部空間部に貯留可能な凝縮水貯留手段65と、凝縮水貯留手段65内の凝縮水を排出部81を介して排出可能であると共に当該排出部81を開閉手段82により開閉可能な凝縮水排出手段80と、凝縮水貯留手段65内の凝縮水をポンプ92により圧送して循環経路20の内部に供給可能な凝縮水供給手段90と、凝縮水排出手段80及び凝縮水供給手段90を制御し、凝縮水貯留手段65内の凝縮水をポンプ92により圧送して循環経路20の内部に供給する場合に開閉手段82により排出部81を閉鎖した状態とする制御手段72とを備える。 【選択図】図1

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    JP-2008064018-AMarch 21, 2008Toyota Motor Corp, トヨタ自動車株式会社作動ガス循環型エンジン
    JP-H1182182-AMarch 26, 1999Nippon Soken Inc, 株式会社日本自動車部品総合研究所排気ガス再循環システム

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    JP-2012193634-AOctober 11, 2012Toyota Motor Corp, トヨタ自動車株式会社Water storage tank