JPS6297226U

JPS6297226U -

Info

Publication number: JPS6297226U
Application number: JP18907285U
Authority: JP
Priority date: 1985-12-10
Filing date: 1985-12-10
Publication date: 1987-06-20

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係る機械式過給
機付き２サイクルエンジンの系統図、第２図は第
１図の２サイクルエンジンのバルブタイミング図
、第３図は第１図の２サイクルエンジンの制御用
コンピユータのブロツク図、第４図は本考案の第
２実施例に係る機械式過給機付き２サイクルエン
ジンの制御ブロツク図、第５図は本考案の第２実
施例に係る機械式過給機付き２サイクルエンジン
の制御マツプ図、である。１……２サイクルエンジン、２……吸気弁、３
……排気弁、４……吸気通路、５……機械式過給
機、８……バイパス通路、９……バイパスバルブ
、１３……コンピユータ。 Fig. 1 is a system diagram of a two-stroke engine with a mechanical supercharger according to the first embodiment of the present invention, Fig. 2 is a valve timing diagram of the two-stroke engine of Fig. 1, and Fig. 3 is a diagram of the two-stroke engine of Fig. 1. A block diagram of a computer for controlling a two-stroke engine; FIG. 4 is a control block diagram of a two-stroke engine with a mechanical supercharger according to a second embodiment of the present invention; FIG. FIG. 2 is a control map diagram of the two-stroke engine with a mechanical supercharger. 1...2-cycle engine, 2...Intake valve, 3
...Exhaust valve, 4...Intake passage, 5...Mechanical supercharger, 8...Bypass passage, 9...Bypass valve, 13...Computer.

Claims

[Claims for Utility Model Registration] (1) A device having an intake valve and an exhaust valve, a mechanical supercharger provided in the intake passage, a bypass passage bypassing the mechanical supercharger, and a computer installed in the bypass passage. In a two-stroke engine in which the amount of supercharging is controlled by providing a bypass valve whose opening and closing is controlled by A two-stroke engine with a mechanical supercharger, characterized in that the opening/closing timing of the engine is set such that the intake valve opens after the exhaust valve opens, and the intake valve closes after the exhaust valve closes. (2) The two-stroke engine with a mechanical supercharger according to claim 1, wherein the opening degree of the bypass valve is continuously controlled according to the engine load.