Abrégé

An automobile engine assembly with multifunctional pistons is disclosed, wherein the multifunctional piston (5) means that one piston with two or more functions is provided in each cylinder of the internal combustion engine. Telescopic hollow intake channels (19) are provided in the piston (5) and a top-pressing type of intake valve (20) is installed in the channel (19). A high voltage igniter (4) is provided at the top center of the piston (5). When the multifunctional piston (5) moves down to contact with a top-pressing type of sensor of the cylinder valve, a composite exhaust valve (28) is opened by a connecting rod device (27); then whenthe multifunctional piston (5) moves down to a predetermined height, the bottom end of the pushing rod (21) of the intake valve contacts with a pillar provided in the lower part of the intake channel (19) and the top-pressing type of intake valve (20) is opened. When a lifting oil cylinder (1) moves up to contact with a sensor for fuel injection (33), the sensing element for fuel injection (33) instructs a nozzle for fuel-air mixing to eject the atomized mixed fuel and air into the cylinder and the best air-fuel ratio is obtained in the cylinder, and when the cylinder (1) moves up continuously to reach the top dead center of the piston, it contacts with a sensor for igniting and sends an instruction of igniting.

Classes IPC  ?

• F01L 11/02 - Systèmes à soupapes dans le piston moteur lui-même ou dans la tige du piston dans le piston
• F02F 3/24 - Pistons comportant des moyens pour guider les gaz dans les cylindres, p. ex. pour guider la charge de balayage dans les moteurs à deux temps
• F16J 1/08 - Caractéristiques de structure pour assurer la lubrification