Brake drum with vent hole and cooling scoop
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United States of America Patent
Stats
-
May 22, 2012
Grant Date -
Jan 15, 2009
app pub date -
Dec 26, 2006
filing date -
Dec 23, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
One embodiment of a brake drum includes a cylindrical main body portion, a brake drum mounting flange portion, a brake drum transition portion, the brake drum transition portion extending between the cylindrical main body portion and the mounting flange portion, the transition portion having a plurality of vent openings, and one air scoop secured at each of the vent openings, whereby rotation of the brake drum and air scoop induces air movement within a brake drum cavity defined by the main body portion. Each air scoop defines a louver opening which faces the angular direction of drum rotation, an air channel in fluid communication with the louver opening and the brake drum cavity, and a deflection surface located in the air channel. The deflection surface is positioned to re-direct air movement entering the louver opening at an angular direction, to a generally radial and inboard direction.
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