VARIABLE COMPRESSION RATIO APPARATUS

摘要

PURPOSE: A variable compression ratio device is provided to increase output and fuel ratio by varying compression ratio of a mixer according to an operation state of an engine. CONSTITUTION: A variable compression ratio device comprises a top connecting rod(40), a bottom connecting rod(50), a crank shaft(65), a control rod(80) and a control shaft(90). The top connecting rod is connected to a piston(30) and receives combustion power of a mixer. The bottom connecting rod is connected to the top connecting rod and rotated by the combustion power of the mixer from the top connecting rod. The crank shaft is made eccentric in the bottom connecting rod. The control rod is connected to the bottom connecting rod and varies revolution mark of the bottom connecting rod. The control shaft is connected to the end of the control rod and varies the location of the other end of the control rod.