817results about "Brake cooling" patented technology

A small vehicle has a frame assembly that is supported by rear wheels. An engine is supported by the frame assembly. The rear wheels are driven by the engine through a shaft drive arrangement. A brake assembly is connected to the shaft drive arrangement. An exhaust system extends away from the engine. An air cleaner is positioned along an air induction system of the engine. The air cleaner is positioned between the exhaust system and a cooling air duct that supplies cooling air to the brake assembly.

A thermal management system and methods for use are disclosed. The thermal management system comprises a shield portion and a dissipation portion. The shield portion may comprise a hot side skin, a conduction layer, an insulation layer, and a cool side skin. The dissipation portion may comprise a fin array. Heat absorbed by the shield portion is partially or fully conducted to the dissipation portion for transfer to the ambient environment. The thermal management system may be employed as an aircraft wheel heat shield, an automotive brake heat shield, a gas turbine heat shield, an electronic heat sink, and in various other applications where heat shielding and/or heat transfer are desirable.

A brake pad assembly includes a brake pad having a braking surface. A peripheral wall is provided about the periphery of the braking surface of the brake pad. A perimeter void is provided between the peripheral wall and at least a portion of the brake pad. The perimeter void is in fluid communication with the braking surface of the brake pad. A first set of one or more openings are provide in fluid communication with the perimeter void for removing brake dust from the braking surface of the brake pad.

The invention relates to a braking system of a large-tonnage storage battery forktruck. The braking system comprises a service brake, a parking brake and a hydraulic braking system; the hydraulic braking system comprises a brake hydraulic oil tank, an oil pump, an energy accumulator, a charging valve mechanism, a power brake valve and a parking brake valve block. When a vehicle needs to start from a parking braking state, parking braking is released through the energy accumulator and the parking brake valve block; when the vehicle completely stops and needs parking braking, parking braking is implemented through the parking brake valve block; when service braking is needed for the vehicle, service braking is conducted through the energy accumulator and the power brake valve; when service braking is not needed for the vehicle, service braking is released through the power brake valve. In the driving process of the vehicle, when the pressure of the energy accumulator is lower than the pressure set by an energy accumulator low pressure alarm switch of the parking brake valve block, an alarm is triggered by the parking brake valve block; in the state that the energy accumulator is fully charged, the vehicle can implement effective service braking 6-7 times after the vehicle is deenergized; if service braking is conducted continuously, emergency parking braking can be implemented.

An inlet, positioned to access the flow of air passing around and under a moving vehicle, may draw in air which is conveyed through a duct and discharged to cool a brake on a vehicle. The inlet has a closure. The closure is opened and closed on demand by a temperature-operated actuator incorporating an active or smart material under the direction of a controller. In embodiments, a sensor, suitably positioned to sense a temperature representative of the brake temperature, communicates the sensed brake temperature to the controller. The controller may respond to the sensed brake temperature, by triggering operation of the actuator. Typically the closure is opened to allow passage of cooling air to the brake when the sensed brake temperature exceeds, or is anticipated to exceed, a predetermined temperature.

The brake dust cover structure of a vehicle prevents nearby components from being thermally damaged by insulating the brake disk from heat radiation and prevents impurities, such as pieces of stone, soil or the like, from entering into the brake disk along with air, thus preventing damage to the brake disk. The present invention further improves the cooling efficiency of the brake disk by maximizing the amount of airflow into the brake disk.

A plurality of rotating side brake disks and a plurality of non-rotating side brake disks are arranged outside in the radial direction from a motor shaft in a brake case while alternately overlapping with each other. A frictional material is provided on the non-rotating side brake disk, and an oil groove is provided in a frictional engaging surface of this frictional material. It is configured such that, when a braking force is applied by a brake piston to the motor shaft, lubricant oil flowing into the brake case from a lubricant oil inlet port flows from the outer diameter side to the inner diameter side between the rotating side brake disk and the non-rotating side brake disk only through the oil groove. As a result, the lubricant oil having flowed into the brake case efficiently cools the frictional engaging surface.

The primary purpose of this device is to reduce the fuel consumption of heavy trucks by improving airflow along the underside of a trailer, by way of a fairing mounted forward of the axles. This fairing is a teardrop shaped wedge with a flat bottom surface, which directs air towards the sides of the vehicle, while allowing a smaller volume to flow beneath the fairing such that it will clear the axles. Each axle is also covered by a flat panel, such that air will continue to travel smoothly beneath them. Attached to each panel is a brake cooling system, which consists of a pair of panels protruding downward, with their surfaces parallel to the direction of airflow. When the brakes are engaged, these panels rotate towards the center in an angled configuration, which redirects air towards the drums during and after braking, cooling them quickly and efficiently.

An embodiment of a high-performance car having a car body; at least one member for cooling; at least one cooling duct extending between an inlet opening and an outlet opening, both formed through the car body, to conduct outside cooling air through the member for cooling; and at least one blow duct which terminates at a blow opening, formed through the car body, to direct an air jet which interacts with the airflow about the car body to alter the streamline configuration of the car; the blow duct originates at an initial portion of the cooling duct, upstream from the member for cooling, and has a deflecting device which can be activated to divert at least part of the air in the cooling duct to the blow duct.

A drive unit for an aircraft ground wheel associated with a brake unit for braking the ground wheel includes: a driving motor drivingly coupleable to the ground wheel; and a cooling system including at least a drive cooling unit configured to generate a drive cooling air stream for cooling the drive unit and a brake cooling unit configured to generate a brake cooling air stream by sucking in air from the brake unit. A method of controlling such drive unit in which the cooling system is driven by the driving motor of the drive unit includes: decoupling the driving motor from the ground wheel and increasing the rotational speed of the driving motor to increase the amount of generated drive cooling air, when an operating condition of the ground wheel and/or of the drive unit is switched from a propulsion mode to a non-propulsion mode.

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.

The invention discloses a water vapor comprehensive utilization system and utilization method of a car. A water tank is arranged on a chassis of the car. By means of a water-vapor collection assembly, rainwater, condensate water of an air-conditioning evaporator, condensate water of an exhaust pipe and other water vapor generated during a daily driving process of the car are stored in the water tank. When excess temperature is detected by temperature sensors of the air-conditioning evaporator, an engine intake manifold, a tire and a brake part or when a fire disaster is detected by a fire sensor arranged in an engine compartment, information is transferred to a trip computer. The trip computer is used for conveying water to spraying heads at specified positions by controlling a high-pressure water pump of the water tank and electromagnetic valves at corresponding valves such that an overheating part is subjected to cooling and fire suppression operation. The water-vapor comprehensive utilization system and utilization method of the car helps to solve the problem of a water source for cooling water of the car and expand the application range of water and have the capability of cooling the overheating part and preventing the car against self-ignition. Features of low cost and high reliability are obtained.

A vehicle system includes a compressed air system and a brake assembly. The compressed air system includes an actuating means for actuating a pneumatic-controlled vehicle component and an exhaust outlet adapted to discharge exhaust air from the actuating means. The vehicle system includes a discharge device for discharging air to at least a portion of the brake assembly. A method of improving the braking characteristics of a brake assembly is also provided. Furthermore, the use of exhaust air in order to improve the braking characteristics of a brake assembly is also described.

A brake dust collecting device for a motor vehicle has a dust collecting unit and an air flow generating device that generates an air flow that flows across brake parts of a motor vehicle wheel brake and that supplies brake dust of the wheel brake to the dust collecting unit. The air flow generating device has a rotatable fan blade and the dust collecting unit is a filter element.

The invention discloses a disk type water cooling self-excited eddy current retarder, which comprises a stator component, a rotor component, a drive shaft and a cooling water circulating device, wherein the stator component is composed of two stator disks and a plurality of permanent magnetic field generating devices; a cooling water channel is disposed in each of the stator disks; two permanent magnets and a partition board are disposed in a cavity of a magnetic conductive sleeve in each of the permanent magnetic field generating devices, and the two permanent magnets are so arranged that magnetic poles are in opposite directions; the partition board is fixedly adhered to a cylinder which is formed between the two permanent magnets, corresponds to the cavity of the magnetic conductive sleeve, and is capable of rotating along a central shaft of the magnetic conductive sleeve; and a through groove port which faces an armature is formed on the side wall of the magnetic conductive sleeve; when a retarder is in a work state, magnetic lines of force of permanent magnetic fields form a magnetic field loop through the two permanent magnets, the magnetic conductive sleeve, an air gap and the armature; and when the retarder is in a non-work state, magnetic lines of force of magnetic fields form a magnetic conductive loop through the two permanent magnets and the magnetic conductive sleeve; current is provided for magnetic exciting coils by a self-generating device, therefore, no vehicle-mounted power supply is needed to provide power; and cooling liquid can take away partial heat generated when the retarder brakes.

The invention discloses a heat-pipe type automobile brake disc cooling device. The heat-pipe type automobile brake disc cooling device comprises a brake disc, a heat-pipe evaporation section, radiating fins and a heat-pipe condensation section. The interior of the brake disc is hollow and the cross section of the hollow part is in an L shape. The heat-pipe evaporation section and the heat-pipe condensation section form an L shape. An L-shaped interior cavity is filled with a working medium and sealed after being vacuumized. The radiating fins are welded to the exterior of the heat-pipe condensation section. When a vehicle is braked or braked for a long time, friction between a brake pad and the brake disc occurs and heat is generated; the heat passes through the working medium in a heating cavity of the brake disc and arrives at the condensation section after the working medium evaporates, and the heat is dissipated to the atmosphere through the radiating fins of the condensation section. Accordingly, the temperature of the brake disc is decreased, the braking heat fading phenomenon is reduced, and the traffic safety is improved.

The invention relates to an electromechanical ACBS (Anti-lock Central Braking System) retarder control device and its control method, which mainly includes air circuit control and electronic control, and the air circuit is equipped with a PCV regulating valve (16) on the original air brake circuit. The normally closed solenoid valve (19) acts as a control valve to control the air pressure of the retarder air chamber, and uses the parking air reservoir to complete the retarder air supply without affecting the original braking performance of the vehicle. The retarder is cooled by circulating cooling water, and the cooling water is recycled by the electric water pump (25). The central retarder control system can judge the driver's operation, prevent misoperation, and realize the real-time monitoring of speed, temperature and pressure, retarder brake anti-lock, CAN bus communication, display and alarm and other functions. The control of the PCV regulating valve (16) and the normally closed solenoid valve (19) is realized through the high-power drive module, and the ECU of the control circuit adopts ISP programming method, power management, hardware watchdog and other methods to ensure better stability of the controller sex.

An axle assembly that uses brakes that require cooling includes a brake cooling system that uses at least one hydraulic pump that supplies cooling oil to the brakes. Means for driving of the hydraulic pump using rotation of a component of the axle assembly such as a transmission or other mechanism is provided, thereby eliminating reliance on a towing vehicle. A heat exchanger cools the heated oil exiting from the brakes and recirculates the cooled oil back to the brakes for continued cooling.

The invention discloses a control method and system of vehicle brakes. The method includes: reading a preset first time interval; acquiring the actual temperature value, collected in a preset time range, of a service brake according to the first time interval, and generating a first actual temperature sequence; inputting the first actual temperature sequence into a temperature prediction model so as to predict the prediction temperature value of the service brake at the next collecting moment; judging whether the prediction temperature value is larger than a preset first temperature threshold or not; if so starting an auxiliary brake. By the method, the problems that a vehicle continuously use the brakes, the temperature of the brakes is excessively high, the brake efficiency of the service brake is lowered, and vehicle travelling safety is affected in the prior art are solved.

The invention relates to an airplane brake cooling system and method. The airplane brake cooling system comprises an infrared temperature measurement sensor, a brake temperature monitoring unit, and a brake cooling unit, wherein the infrared temperature measurement sensor is mounted on an airplane undercarriage and is used for measuring the temperature of an airplane brake disc; the brake temperature monitoring unit is connected to the infrared temperature measurement sensor and is used for monitoring temperature signals measured by the infrared temperature measurement sensor; the brake cooling unit is mounted on the undercarriage and is used for cooling down the airplane brake disc. The airplane brake cooling system and method have the following benefits: the temperature of the airplane brake disc can be conveniently measured, and the airplane brake disc can be effectively cooled down.

The invention relates to a brake block cooling system, which comprises a brake block (1) and a water cooling system, wherein said water cooling system comprises heat emission tube fixed on the brake block (1). The inventive water cooling system can cool the brake block, to reduce the temperature and avoid brake slide or ineffective, to solve the problem of heat regression of metallic brake block.