507results about "Braking drums" patented technology

An axial fixing device for axially fixing an annular brake disk on a wheel hub of a motor vehicle, the annular brake disk having the same axis of rotation as the hub and including radial ventilation ducts regularly distributed about its periphery. According to the invention, the hub has axial guide pieces in relief, or "lugs", for co-operating with fluting in an inner peripheral edge of the disk to center the disk, to lock it angularly, and to guide it axially relative to the hub, each lug of the hub having a radial through channel for co-operating with a corresponding ventilation duct of the disk, and the disk is held axially in the hub with play by axial holding means disposed between the disk and the hub.

The invention provides a lightweight brake drum (10) comprising a lightweight, tubular inner member (14) having a reinforcement wrapping retention pattern (e.g., groove) cast in the exterior surface thereof, a length of reinforcement material (e.g., wrapped wire, cable, mesh, fibers, etc.) (16) in communication with a reinforcement retention pattern (e.g., a groove around the inner member) (14), the drum including an outer shell (18). The inner member (14) and the outer shell (18) are made of lightweight materials. Single, or multiple layers of reinforcement material (e.g. wrapping) are applied (e.g., wrapped) around the inner member (14) to support and inhibit expansion of the inner member (14). Because the reinforcement material (16) provides support against expansion, the inner member (14) and the outer shell (18) can be made of lightweight materials. In preferred embodiments, a bonding layer (66) is applied to the exterior surface of the inner member prior to application of the reinforcement material thereon. In preferred embodiments the reinforcement material comprises a low-impedance material such as copper along with another material that has good tensile strength characteristics (e.g., steel, composite fibers, Basalt-fibers, etc.). Preferably, the inner member comprises at least one material selected from the group consisting of a aluminum-based metal matrix composite (MMC) with a particulate reinforcement, ceramic matrix composite (CMC), and carbon graphite foam.

A brake assembly is provided that includes a wear-resistant surface, or a surface prone to corrosion, wherein the surface is coated with a coating that optimizes wear-resistance, corrosion-resistance, adhesiveness, and friction factors of the coating. The coating includes a sacrificial corrosion constituent and a second constituent that is relatively harder than the sacrificial corrosion constituent wherein typical metals often employed as sacrificial anodes for example are contemplated. These include aluminum, zinc, and alloys thereof. The second constituent is potentially formed from a carbide, nitride, oxide, transitional metals and alloys thereof, and mixtures thereof.

A rotor assembly with a cylindrical body having a radial disc that is perpendicularly aligned with a hub of a vehicle and an exciter ring through which a sensor detects rotation of the radial disc. The exciter ring is concentrically installed within the cylindrical body to define a gap between a flange thereon and the radial disc. Reluctance sections on the flange are axially aligned with the sensor to generate a signal indicative of rotation. Friction members engage the radial disc and generate thermal energy that is conducted a mounting flange. Thermal energy level may cause the rotor assembly to expand and change the alignment of the radial disc from perpendicular and non-perpendicular with respect to the hub. The gap allows the radial disc and exciter ring to independently move such that the reluctance sections remain axially aligned with the sensor and sensed information is an accurate indication of rotation.

A brake caliper including a caliper body and heat pipes at least partially embedded within the caliper body. The caliper body includes spaced inboard and outboard portions. In addition, at least one of the portions includes piston bores. The caliper body further includes a connector between the inboard and outboard portions whose spacing permits brake pads and a periphery of a brake rotor to be received between the inboard and outboard portions. Also, the brake caliper includes pistons disposed in the piston bores to press the brake pads against the periphery of the brake rotor when brake fluid moves the pistons and the brake pads toward the brake rotor. As the brake pads heat the brake caliper, the heat pipes transfer heat away from the piston bores thereby cooling the brake caliper and brake fluid in, around, or near the piston bores.

A brake disc for a wheel constituted by a peripheral section, forming a brake band with an interior form enabling it to be fitted to its wheel, the brake band forms two lateral flat and parallel surfaces on which a brake shoe can act, said peripheral section having a series of off-sets on its inside and outside edges.

A wheel support for providing a connection, rotatable about an axis (S), between a wheel of a vehicle which can be braked by a disk brake and the stub axle (6) of the vehicle comprises a bell (24) suitable for supporting a braking band (25) and a connection flange (14) for the connection of the vehicle wheel. The bell (24) and the connection flange (14) are formed integrally, constituting a single body (2) which can be connected rotatably and releasably to the stub axle (6) of the vehicle.

This invention provides caliper covers having vent openings, caliper cover kits, and methods for cooling caliper brake mechanisms that prevent brake fade and prevent brake malfunction caused by debris from the road, while improving the appearance of the caliper braking mechanism and preventing transfer of braking dust from the brake pads to the wheels.

A manufacturing method of a high-strength light bi-metal brake drum includes the following steps: (a) blanking steel plates; (b) punching; (c) spinning, spinning an external edge of a semi-finished product obtained from the former step to be a cylindrical outer ring having a plurality of convex rings; (d) roll spinning, forming uniformly distributed inwards concave parts on an inner wall of the convex ring of the semi-finished product through roll spinning; (e) casting, casting a iron casting lining in the semi-finished product by a centrifugal casting method; (f) heat treatment, eliminating inner stress and enabling the iron casting lining to achieve a rigidity demanded by the brake drum; (g) processes of finish machining and the like. The bi-metal brake drum manufactured by the method can directly transmit a brake moment between the iron casting lining and a steel housing, fixing pieces, such as a bolt or a rivet and the like, are unnecessary for assembling the outer ring and the lining of the brake drum, and service life of the brake drum is prolonged; simultaneously, an originally designed structure combination of a drum disc, the lining and a thin wall of the outer ring is not changed, so that phenomena of crack caused by too thick drum wall and too much temperature difference are reduced, and braking conditions are improved.

A composite brake drum includes an outer component having an outer surface and an inner surface defining an internal cavity. The composite brake drum also includes an inner liner that is mounted within the internal cavity and is attached to the inner surface. The inner liner is made from a metal matrix composite such as silicon carbide aluminum (SiCAl), for example. The outer component is formed from cast iron or stamped steel. The metal matrix composite provides a braking surface that is less corrosive than a braking surface that would be provided by ferrous materials.

A rotor is provided for use with a vehicle brake assembly that includes a forcing member operable to urge a friction member into mechanical communication with the rotor to thereby oppose movement of the same. The rotor includes a rotor body with an annular rim portion having first and second opposing contact faces. One or more loose-mass damper systems are interposed between the first and second contact faces, and operable to dissipate kinetic energy directly therefrom. Each of the loose-mass damper systems includes at least one mass operable to repeatedly impact against first and second inner faces respectively opposing the first and second contact faces to reduce oscillation of the rotor. Reducing oscillation of the rotor is independent of temperature and pressure. The loose-mass damper systems are preferably oriented proximate to an outer peripheral edge of the annular rim portion generally circumferentially equidistant from one another.

A brake system including a suspension component housing at least one actuation piston to reversibly extend a brake pad; and a wheel that is in rotational engagement to the suspension component, the wheel having a rim portion with an interior surface that is contacted by the brake pad of at least one actuation piston when in an extended position.

Exciter rings, wheel assemblies and methods of assembling. In some aspects, a wheel assembly includes a brake rotor including a barrel section having an interior surface defining a barrel cavity, and a projection extending from the interior surface of the barrel section into the barrel cavity. The wheel assembly also includes an exciter ring formed separately from the brake rotor and engagable with the projection within the barrel cavity to removably connect the exciter ring to the brake rotor. In other aspects, an exciter ring is formed separately from and removably connectable to a brake rotor and includes a body portion having an outer surface, the body portion including a detent protruding outwardly from the outer surface and extending around the outer surface of the body portion. The exciter ring also includes a flange extending radially outwardly from the body portion and having a plurality of apertures.

A drum break with bionic rough surface characters high friction index, anti-wear, anti-heat fatigue. On the surface of the drum break distribute knaggy units of height 0.15-0.5 mm in parallel or net. The structure and chemical components of the knaggy units increase the ability of anti-friction and anti-heat fatigue of the drum break. The structure of the knaggy units changes a surface friction to point friction therefore reduce wearniess of the drum break. The life this knagg drum break is 1.5-3 times of that of same material in smooth.

A bicycle disc brake caliper is provided with a detachable cooling system that transfers heat away from the actuating fluid. Basically, the bicycle disc brake caliper has a housing and a piston unit, with a coolant member of the cooling system attached to the housing. The housing has a frame mounting member sized to be coupled to a portion of a bicycle frame. The piston unit is movably coupled to the housing between a release position, in which the piston unit is spaced from a brake disc mounted to a wheel of a bicycle, and a braking position, in which the piston unit engages the brake disc of the bicycle wheel. The coolant member has a coolant area for receiving coolant to create a coolant heat sink that transfers heat from the housing. The housing has an actuating passage in fluid communication with the piston unit to move the piston unit via an actuating fluid. In one embodiment, the cooling system includes a pump and a reservoir. In another embodiment, a coolant or water bottle is attached to the coolant member for manually adding coolant thereto. In another embodiment, the coolant member is filled with a high specific heat gel.