| 摘要 |
PURPOSE: A brake drum containing a radiating propeller is provided to prevent heat generated in a brake drum from being transmitted into a wheel by attaching a radiating pin in the middle of the radiating propeller. CONSTITUTION: A brake drum having a radiating propeller comprises a radiating propeller(3) combined to a brake drum(2) by a bolt(B); a bolt hole formed on the propeller; plural grooves inducing air by being mounted on the propeller; plural radiating pins(4) arranged on a middle portion of the brake drum with a specific interval; and plural radiating holes(1-1) formed on a tire wheel(1). The radiating propeller forcedly induces the air into a gap between the brake drum and the wheel by rotating the brake drum. The heated air is discharged outside through the radiating hole of the wheel. The heat generated in the brake drum is discharged by the radiating hole of the tire wheel. Thereby, the brake drum having the radiating propeller prevents the heat generated in the brake drum from being transmitted into the wheel by attaching the radiating pin in the middle of the radiating propeller.
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