Two-cycle engine

Abstract

Abstract PURPOSE:To allow the fuel injection function of a two-cycle engine to operate at optimum efficiency by furnishing a control means to control the injection timing and amount of fuel injection valves arranged on a main and an aux. suction passage. CONSTITUTION:Besides a main suction passage 22 to introduce new air into a crank chamber 21, the two-cycle engine 10 is equipped with an aux. suction passage 30 to introduce new air directly into the crank chamber 21. In this engine 10, No.1 injector 34 and No.2 injector 36 are arranged on these suction passages 22 and 30, respectively. A crank chamber pressure signal from a pressure sensor 50 and signals from a crank sensor 52 and pulser coil 56 are fed into a central processing unit 54, which judges cylinder on the basis of these signals and determines optimum fuel injection timing and injection amount about the injectors 34, 36, and applicable signal is sent. Because the injectors 34, 36 can thus work with optimum injection timing and injection amount through electronical control, effective output can be drawn out of the engine 10.

Inventors

• 👤 Katsumi Torikai
• 👤 鳥飼　克己

Bibliographic Details