Patent ID: 6202802
Filing Date: 2001-03-20
Classification: B60T,B62L,F16D

Abstract:
A bicycle disc brake caliper, comprising:a housing with a frame mounting member sized to be coupled to a portion of a bicycle frame;a piston unit movably coupled to said housing between a release position in which said piston unit is spaced from a brake disc mounted to a wheel of a bicycle and a braking position in which said piston unit engages the brake disc of the bicycle wheel; anda coolant member coupled to said housing, said coolant member having an inlet opening and an outlet opening in fluid communication with a coolant area for receiving coolant to create a coolant heat sink that transfers heat from said housing,said housing including an actuating passage in fluid communication with said piston unit to move said piston unit via an actuating fluid,said housing including a first housing half having a first cavity with a first cavity opening forming a first portion of said cooling area therein and a second housing half with a second cavity with a second cavity opening forming a second portion of said cooling area therein, said first and second cavities of said cooling area having outer peripheries that are substantially equal to said first and second cavity openings of said cooling area to form a single large coolant chamber such that coolant is located in a single concentrated area between said first and second housing halves.