Vented brake disc

A vented brake disc comprising:

• a first braking plate having a first inner flat surface and a first outer flat surface;
• a second braking plate parallel with and spaced apart from the first braking plate, the second braking plate having a second outer flat surface, and a second inner flat surface facing the first inner flat surface;
• a plurality of channels, wherein each of the plurality of channels is defined by the first inner flat surface, the second inner flat surface, and two adjacent walls provided between the first inner flat surface and the second inner flat surface;
• a hat portion having a mounting surface and a peripheral portion extended axially from the mounting surface;
• a first blocking part provided for a first set of channels among the plurality of channels, the first blocking part connecting the peripheral portion to the first braking plate and excluding an air-flow from an outboard side to the first set of channels;
• and
• a second blocking part provided for a second set of channels among the plurality of channels, the second blocking part connecting the peripheral portion to the second braking plate and excluding an air-flow from an inboard side to the second set of channels,
• wherein the first blocking part and the second blocking part are provided along the peripheral portion,
• wherein a first air-flow enters the first set of channels from the inboard side and flows radially outward,
• wherein a second air-flow enters the second set of channels from the outboard side and flows radially outward, and
• wherein the first air-flow and the second air-flow radially exit the vented brake disc through openings formed between the first braking plate and the second braking plate without being mixed with each other.