AUTOMATIC VARIABLE PROPELLER USING AIR VOLUME, ENABLING A PROPELLER TO ROTATE AT A FIXED SPEED

摘要

PURPOSE: An automatic variable propeller using air volume is provided to enable a propeller to rotate at a fixed speed and prevent speeding, since pitch is controlled depending on the decrease/increase of air volume.;CONSTITUTION: An automatic variable propeller using air volume comprises a plurality of propellers and a spring. The propeller is an angle-variable propeller, not a fixed one. The spring is connected to the propeller. The spring makes the propeller return to its original angle. Depending on the increase/decrease of lift, pitch is controlled. Since pitch is controlled depending on the increase/decrease of air volume, the propeller rotates at a fixed speed.;COPYRIGHT KIPO 2012