The present invention relates to a disc brake caliper body comprising a mounting side bracket and a non-mounting side bracket extending along a circumferential direction of the body, each bracket being configured to hold at least one brake pad. In order to provide improved cooling efficiency while maintaining the required stability of the brake caliper, the caliper body further comprises at least one cooling duct formed by additive manufacturing, at least one cooling duct being an integral part of the caliper body.

A brake rotor assembly can include a structural part having a receiving surface and at least one friction surface parts having a contact surface. The friction surface part can be fixably attached to the receiving surface of the structural part such that the contact surface faces away from the receiving surface of the structural surface to form at least part of an annular braking surface arranged concentrically around an axis of rotation of the structural part.

A vehicle disc brake unit comprises a rotatable brake rotor and non-rotatable brake pad of caliper. During the vehicle braking, the non-rotatable brake pad presses against the rotating brake rotor, producing friction heat on frictional contact bands where the brake rotor and the brake pad engages with each other. A plurality of longitudinal vortex generators configured in fins is mounted either to a rotatable vehicle component such as hat of a brake rotor, or a non-rotatable vehicle component such as a protective plate, generating longitudinal vortices in the cooling air flows around the brake rotor, especially across the hottest frictional contact bands. The induced longitudinal vortices in the cooling air flows optimize the heat dissipation from brake rotor into atmosphere.

The flywheel device includes a sealed housing section; a rotor located in the sealed housing section where the rotor is held in a vertical position by a magnetic system; a controller coupled to the magnetic system; and a braking annular ring mounted to the sealed housing section below the rotor, where the rotor contacts the braking annular ring when the rotor is lowered or otherwise dropped from the vertical position. The controller performs operations to provide control signals to provide first power to the magnetic system to hold the rotor in the vertical position and provide second control signals to provide second power to the magnetic system to lower the rotor.

An aircraft braked wheel comprising a rim integral with a hub for rotationally mounting thereof on an axle of the aircraft along an axis of rotation, the wheel being equipped with a heat shield (11) extending opposite an inner face of the rim to protect the rim from the thermal radiation generated by a stack of discs extending inside the rim, characterized in that the heat shield has a face facing the discs (15) which has longitudinal ribs (16) extending in operation parallel to the axis of rotation of the wheel.

A disc brake and a cooling controller, a control system and a control method, a brake disc of the disc brake includes a first basic plate and a second basic plate, jointed and forming a cavity. A fibrous body having a capillary structure is sandwiched between the first basic plate and the second basic plate, the fibrous body filling between the first basic plate and the second plate, and the fibrous body being formed in a ring shape and sleeves on an axle to receive cooling water from the axle and distribute the cooling water on inner walls of the first basic plate and the second basic plate. The cooling water is evenly distributed to prevent brake disc from fading under heat, and based on the disc brake, an additional automatic controlled cooling control system is provided to accurately control the amount of the cooling water, thereby saving water.

An arrangement and method for mounting a brake disc to an axle hub of a vehicle is provided. The arrangement includes wedge-shaped holes at an radially inner region of the brake disc, corresponding wedge-shaped key inserts, a retaining device such as a retaining ring, and mounting devices such as bolts or studs and nuts that pass through the retaining ring and keys to bias the keys against the axle hub. The circumferential sides of the wedge shapes are aligned with radial lines extending from the rotation axis of the axle hub. This arrangement and method provides a simple, robust and easily installed brake disc mounting that minimizes heat transfer between the brake disc and the axle hub and accommodates thermal expansion of the brake disc and the axle hub to minimize thermal expansion-induced stresses to the brake disc.

An arrangement and method for mounting a brake disc to an axle hub of a vehicle is provided. The arrangement includes wedge-shaped holes at an radially inner region of the brake disc, corresponding wedge-shaped key inserts, a retaining device such as a retaining ring, and mounting devices such as bolts or studs and nuts that pass through the retaining ring and keys to bias the keys against the axle hub. The circumferential sides of the wedge shapes are aligned with radial lines extending from the rotation axis of the axle hub. This arrangement and method provides a simple, robust and easily installed brake disc mounting that minimizes heat transfer between the brake disc and the axle hub and accommodates thermal expansion of the brake disc and the axle hub to minimize thermal expansion-induced stresses to the brake disc.

A caliper body for a disc brake is described. The caliper body is adapted to straddle an associable brake disc. The caliper body may have a first elongated portion, or a vehicle-side elongated portion, at least partially adapted to face the first braking surface. The caliper body may also have a second elongated portion, or wheel-side elongated portion, opposite to the first elongated portion and at least partially adapted to face the second braking surface. At least one part of the first elongated portion has at least a first module and at least one part of the second elongated portion has at least a second module. The first module and the second module are obtained by at least one non-additive manufacturing technique.

A heat dissipating device for bicycle braking systems includes a first board and a second board which is connected to the first board to form a room defined therebetween so that cooling liquid flows within the room. The first board includes a first recess and a second recess defined in an inside thereof which faces the second board. The first recess communicates with the second recess. A flanged portion is formed along four sides of the first board. The second board has a grooved portion formed on each of four sides thereof. The flanged portion is engaged with the grooved portions to connect the first and second boards together.