JPH02145640U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は２サイクル内燃機関の全体図、第２図
は第１図のシリンダヘツド内壁面の底面図、第３
図は点火栓周りの断面図、第４図はエアブラスト
弁の側面断面図、第５図は給排気弁の開弁期間等
を示す線図、第６図は燃焼圧の変化を示す線図、
第７図は燃料消費量を示す線図、第８図は燃料噴
射制御のタイムチヤート、第９図は燃焼圧の最大
上昇率を計算するためのフローチヤート、第１０
図は燃料噴射を制御するためのフローチヤートで
ある。 ４……燃焼室、５……吸気弁、７……排気弁、
９……エアブラスト弁。 Figure 1 is an overall view of a two-stroke internal combustion engine, Figure 2 is a bottom view of the inner wall surface of the cylinder head in Figure 1, and Figure 3 is a bottom view of the inner wall surface of the cylinder head in Figure 1.
The figure is a cross-sectional view of the area around the spark plug, Figure 4 is a side cross-sectional view of the air blast valve, Figure 5 is a line diagram showing the opening period of the supply and exhaust valve, etc., and Figure 6 is a line diagram showing changes in combustion pressure. ,
Figure 7 is a diagram showing fuel consumption, Figure 8 is a time chart for fuel injection control, Figure 9 is a flow chart for calculating the maximum rate of increase in combustion pressure, and Figure 10 is a diagram showing fuel consumption.
The figure is a flowchart for controlling fuel injection. 4... Combustion chamber, 5... Intake valve, 7... Exhaust valve,
9...Air blast valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃焼室内に燃料を噴射する燃料噴射弁を具えた
火花点火式２サイクル内燃機関において、燃焼室
内の燃焼圧を検出する燃焼圧センサを具備し、該
燃焼圧の上昇率が予め定められた設定値を越えた
ときに燃料噴射時期を遅らせるようにした２サイ
クル内燃機関の燃料噴射制御装置。 In a spark-ignition two-stroke internal combustion engine equipped with a fuel injection valve that injects fuel into a combustion chamber, the engine is equipped with a combustion pressure sensor that detects combustion pressure in the combustion chamber, and the increase rate of the combustion pressure is set to a predetermined setting value. A fuel injection control device for a two-stroke internal combustion engine that delays fuel injection timing when the