engine torque
We all know dat in an engine at the time when d piston is at its TDC d combuston takes place(under some variations...but ideally at TDC)i.e. d pressure force is maximum at this position(power stroke)...but at dat time d crank and d connecting rod forms nearly a st. line ... which leads 2 nearly zero Torque(as the pressure force vector almost passes through the crank center)...but still d engine is designed like dat 4 which we get zero torque generated at d time of power stroke...WHY??