CONTROL DEVICE OF COMPRESSION SELF-IGNITION TYPE ENGINE

• Main Authors: INOUE ATSUSHI, URUSHIBARA TOMONORI, MATSUMOTO KOTA, SUEOKA KENYA
• Format: Patent
• Language: English; Japanese
• Published: 07.06.2018
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PROBLEM TO BE SOLVED: To suppress combustion noise by properly performing combustion by compression self-ignition.SOLUTION: A control device of a compression self-ignition type engine 1 controls compression self-ignition by ignition. The control device comprises an intake dynamic valve mechanism 23 which can change the valve-closing timing of an intake valve 21, a controller 10, and an ignition plug 25 for igniting an air-fuel mixture in a combustion chamber 17. The controller 10 is constituted so as to operate an engine 1, and combusts an unburned mixture by the ignition of the ignition plug 25 in a state that an effective compression ratio of the engine 1 is set lower than a geometric compression ratio by the intake dynamic valve mechanism 23.SELECTED DRAWING: Figure 18 【課題】圧縮自己着火による燃焼を適切に行うことにより、燃焼騒音を抑制する。【解決手段】点火によって圧縮自己着火を制御する圧縮自己着火式エンジン１の制御装置である。吸気弁２１の閉弁時期の変更が可能な吸気動弁機構２３、コントローラー１０、及び燃焼室１７の中の混合気に点火する点火プラグ２５を備える。コントローラー１０は、エンジン１を運転するように構成され、吸気動弁機構２３によりエンジン１の有効圧縮比を幾何学的圧縮比未満にした状態で、点火プラグ２５の点火によって未燃混合気を自己着火により燃焼させる。【選択図】図１８