A caliper body which has a wheel-side first portion, a vehicle-side second portion, at least one thrust device housing, and at least one bridge connecting the wheel-side first portion to the vehicle-side second portion is provided. The at least one bridge has at least one ventilation opening and at least one conveying channel fluidically connected to the outside of the caliper body through the at least one ventilation opening. The least one ventilation opening directly faces in an axial direction the inside of the caliper body with the outside of the caliper body to direct heat generated inside the caliper body in an outer axial direction towards the outside of the caliper body and conveyed outside by the at least one conveying channel through the at least one ventilation opening.

A vehicle brake system is provided that includes (or is formed from) a back plate configured to support a composite pad, at least one conditioning insert coupled to the back plate and configured to contact a surface of a wheel during a braking event and thereby to condition at least a portion of the surface of the wheel, and fins coupled with the at least one conditioning insert and configured to conduct heat generated by contact of the at least one conditioning insert with the at least the portion of the surface of the wheel away from the at least one conditioning insert.

A vehicle brake system is provided that includes (or is formed from) a back plate configured to support a composite pad, at least one conditioning insert coupled to the back plate and configured to contact a surface of a wheel during a braking event and thereby to condition at least a portion of the surface of the wheel, and fins coupled with the at least one conditioning insert and configured to conduct heat generated by contact of the at least one conditioning insert with the at least the portion of the surface of the wheel away from the at least one conditioning insert.

A hydraulic apparatus comprising a casing (1) having arranged therein a hydraulic machine (2), a shaft (4) mounted to rotate relative to the casing (1) by means of a bearing (5), a braking system (3) having a plurality of brake disks (31, 34) configured to prevent the shaft (4) rotating relative to the casing (1) in selective manner, and a control system (6, 7) for controlling said braking disks (31, 34), the hydraulic system including an irrigation system adapted to cool said brake disks (31, 34) by means of a fluid, the irrigation system including a fluid inlet (81) and a fluid outlet (82), the hydraulic system being characterized in that the fluid inlet and outlet (81, 82) of the irrigation system define a fluid flow within the casing in which the braking system (3) is downstream from the hydraulic machine (2).

Disclosed are an electric wheel assembly applicable for a parallelly mounted dual-tire wheel, an axle, and a vehicle. The electric wheel assembly includes a wheel and support axle assembly, an internal-rotor hub motor, a planetary gear reducer and a brake system. A planetary carrier is connected to a hub. The hub is connected to a spoke and a rim. The wheel support axle passes through a rotor sleeve and is provided with a hub bearing to support the hub and a whole wheel. A sun gear disposed at an end of the rotor sleeve of the internal-rotor hub motor is a power input of the planetary gear speed reducer, and the planetary carrier is a power output. A planetary gear of the planetary gear reducer is a tower-shaped gear and realizes a relatively high transmission ratio under a condition that an axial length is relatively small.

The invention relates to a pad for a bicycle disc brake. The pad comprises a support frame made of a first material having a first coefficient of thermal conductivity and a first coefficient of thermal expansion, an element made of friction-wearing material associated with a first portion of said support frame and a heat-dissipating element associated with a second portion of said support frame which is distinct from said first portion. The heat-dissipating element is made of a second material different from said first material and having a second coefficient of thermal conductivity greater than said first coefficient of thermal conductivity and a second coefficient of thermal expansion greater than said first coefficient of thermal expansion.

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 perform 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.

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 wet brake includes a housing, a rotator, a plurality of plates, a plurality of discs, and a piston. The rotator is rotatably disposed in the housing and cooperates with the housing to form therebetween a brake chamber into which cooling oil is forced to flow. The plates are disposed in the brake chamber and axially movably engaged with the housing. The discs are disposed alternatively with the plates in the brake chamber and axially movably engaged with the rotator. The piston is configured to push the plates and the discs. The housing has a cooling oil inlet and a cooling oil outlet that communicate with an inner peripheral region and an outer peripheral region of the brake chamber, respectively. An oil collecting passage is formed adjacent to an open end of the cooling oil outlet on a brake chamber side to communicate with the brake chamber and continues circumferentially.