Thermal Performance of Novel Liquid Cooled Disc Brake

Brakes in vehicles are used to reduce the speed of moving vehicle, in braking system KE converts into heat energy. The temperature generated during braking friction effects on various components of the brake system; this generated heat is essential to remove quickly. In existing vehicles, air cooled disc brakes are used to remove generated heat. In long braking, temperature develops continuously due to friction between disc surface and pads; interface temperature may increase more than 800 ℃, leading to fade brake. In the present, a liquid cooled disc is being manufactured to dissipate the generated heat without disturbing the basic dimensions of present air cooled disc, a closed type of disc is being manufactured, and liquid is trapped in the gap of two cheeks. Enclosed liquid absorbs friction temperature with direct contact by conduction and then transfers it to atmosphere by convection. Experimentations of liquid cooled discs on inertia dynamometer setup and on vehicle in field result in better performance than the air cooled discs with reduction in fading of brakes.