1175results about How to "Easy to brake" patented technology

An apparatus and method for aligning and imaging a body part which immobilizes the body part within a stereotactic body localization system having an imaging resolver fiducial localizer for precise imaging and localization of the body parts within the apparatus. Both anterior and posterior immobilization methods can be used. A continuous array of coupled fiducials is employed with at least one pair formed in a pi / 2 horizontal linked sine and cosine wave fiducial pattern.

A method and an arrangement for controlling a drive unit are suggested wherein a maximum permissible value of an output quantity is determined. This maximum permissible value is compared to the actual value and, when the permissible value is exceeded by the actual value, reaction measures are initiated. The maximum permissible value is filtered at least in one operating state in accordance with filter means including a filter and a dead zone member. Furthermore, the maximum permissible value is continuously reduced in dependence upon the approaching of at least one quantity to a limit value. This quantity represents an operating state.

The present invention concerns a novel means by which chemical preparations can be made. Reactions can be accelerated on special chips using microwave energy. The chips contain materials that efficiently absorb microwave energy causing chemical reaction rate increases. The invention is important in many small scale chemical transformations including those used in protein chemistry and in combinatorial chemistry.

The invention relates to a two-stage cadence braking master valve (type V), which comprises an upper valve body, a middle valve body and a lower valve body, wherein the upper valve body and the middle valve body are connected, sealed and fixed by a piston cylinder body; the upper edge of the lower valve body and the lower edge of the middle valve body are matched, nested, sealed and fixed; an upper piston assembly and a lower piston assembly are respectively arranged in the piston cylinder body and the middle valve body; an upper valve assembly and a lower valve assembly are respectively arranged in the middle valve body and the lower valve body; an inlet hole and an outlet hole are respectively arranged on the side surfaces of the middle valve body and the lower valve body; and the upperpiston assembly comprises an upper piston, a spring kit clamp and a mandril base. The braking master valve can generate sudden energy in the weak pressure phase at the beginning of braking, can promote rapid and powerful combination between a brake pad and a friction sheave to always maintain in a good combination condition and ensure a favorable braking effect. Meanwhile, the friction between the brake pad and the friction sheave can be reduced to the minimum extent, the brake pad is prevented from carbonizing and the service life of a braking system is prolonged.

The present invention discloses combined brake controlling system and method for electromobile. The system includes combined brake ECU, braking pedal displacement sensor, proportional valve, master cylinder oil pressure sensor and wheel cylinder oil pressure sensor. The brake signals the brake pedal displacement sensor and the master cylinder oil pressure sensor acquire are fed to the combined brake ECU, and the combined brake ECU synthesizes and judges to obtain total brake requirement, acquires the available maximum electrically brake moment from the motor ECU to obtain the required hydraulic brake and outputs control signal to the proportional valve for outputting the hydraulic brake force, so as to realize the combined braking of electric braking and hydraulic braking. The present invention has the brake effect and feeling the same as that of traditional process, maximum energy recovery, high operation performance, high brake effect and high energy utilization efficiency.

Fluoropolymer particles are subjected to high energy treatment so as to change the chemical functionality of the particle surfaces and thereby change the surface characteristics of the particles. These characteristics improve the usefulness of these particles and can make them highly dispersible, even in water. The surface treated fluoropolymer particles are subject to a chemical crosslinking process, or alternatively, are subject to a high energy treatment process, and may optionally be pretreated with a macromolecular chemical species prior to the foregoing processes. The high energy treatment can be used to both surface treat the fluoropolymer particles and in some embodiments, may also cause chain scission of the fluoropolymers to thereby reduce the molecular weight of the fluoropolymer particles. The surface treated fluoropolymer particles can be used to form fluoropolymer coatings on various substrates.

The invention relates to an urban railway operating vehicle and particularly relates to a straddle type single-track operating vehicle with a four-wheel-pair structure. The problems of heavy carriage, complex driving mode, low driving efficiency, heavy bogie, and the like, of the present operating vehicle are solved. The straddle type single-track operating vehicle comprises a carriage, a front bogie, a rear bogie, an I position wheel pair, an II position wheel pair, an III position wheel pair and an IV position wheel pair, wherein each bogie comprises a frame, a vehicle body supporting device and a dragging device; the whole frame has an II-shaped all-steel welded plate type box structure and comprises a lateral beam, an end beam, a central beam and a longitudinal beam; a motor bracket is fixed between the upper part of the lateral beam and the longitudinal beam; the I position wheel pair and the II position wheel pair are mounted on the motor bracket of the rear bogie; the III position wheel pair and the IV position wheel pair are mounted on the motor bracket of the front bogie; a guide wheel assembly is mounted in the middle of the lateral beam; a stable wheel assembly is mounted on the lower part of the lateral beam. The line demand on a single rail PC beam is reasonably met; the safety factor is high; the traction performance is excellent; the structure is simple; the repairing is easy; the vehicle running is stable; the braking performance is excellent.

A method for preparing a class of highly stabilized and soil-dispersible nanoparticles and using the nanoparticles as a remediation technology for immobilizing toxic metals at toxic metal contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the nanoparticles in a liquid carrier, and results in suspensions of nanoparticles of desired size and mobility in water, soils or sediments. The stabilizer can facilitate controlling the dispersibility of the nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the nanoparticles can immobilize one or more toxic metals of the contaminated site.

A hybrid engine including an electric motor, a rotary internal combustion engine, and an electric generator incorporating a clutch and translator unit to drive the generator at a ratio greater than 1:1 during vehicle slowing and at a 1:1 ratio rate at other times in providing increased braking and fuel efficiency—along with a programmable central control module and vertical control lever in effectuating steering and vehicle operation without the use of a steering wheel or foot gas and brake pedals.

An aircraft is decelerated by applying a braking force to a wheel of the aircraft as it moves along the ground. An anti skid controller calculates the braking force to be applied by taking into account data relating to the vertical load transmitted between the ground and the wheel and data relating to the slip between the ground and the wheel. Predictions (box 13b) made regarding how the vertical load will change and data (box 13a) concerning the relationship between slip and the ground to wheel friction coefficient are both taken into account when calculating the braking force to be applied. Skids may thereby be predicted in advance and may be reduced or even avoided.

Systems and methods convey a closure material into a catheter, e.g., to seal a puncture site in a blood vessel. The closure material comprises a mixture of first and second components, which, upon mixing, undergo a reaction to form solid closure material composition. The first component may be a lyophilized polyethylene glycol (PEG) material contained within a vial. The second component may be a buffered albumin solution plus water contained within a syringe. An applicator provides easy and effective mixing of the components and delivery of the mixture to the puncture site.

A diaper or adult incontinence garment including a backsheet and a sublayer. The sublayer may include one or more acquisition layers and one or more regions having a multitude of through or blind holes. The sublayer may isolate feces away from the skin and at the same time provide liquid acquisition. Certain regions of the sublayer may have a total open area of from 10% to 50% of the total surface area of the sublayer. The holes have an average smallest dimension of at least 3 mm. The sublayer has an average caliper of from 2 mm to 6, and an average caliper loss after wetting and under pressure of 0.3 psi of less than 20%.

One embodiment of present invention is a segmented instrument having braking capabilities that includes an elongate body having a plurality of links and a hinge connecting a pair of adjacent links in the plurality of links. There is also brake assembly coupled to each link in the pair of adjacent links and positioned to span the distance between the pair of adjacent links. Another embodiment of the present invention is a segmented instrument having a plurality of links and at least one lockable and articulatable joint positioned to connect a pair of adjacent links in the plurality of links. In addition, the at least one lockable and articulatable joint is adapted and configured to increase the number of frictional surfaces available between the pair of adjacent links. There are also provided methods for controlling a segmented instrument. Exemplary steps of the method include introducing a segmented instrument into a patient where the segmented instrument has a plurality of links wherein adjacent links are joined by a hinge. Next, there is the step of manipulating the links about the hinges to maneuver the segmented instrument to provide access to a surgical site within the patient. In one aspect, the manipulating step produces a sliding motion between a plurality of complementary shaped components within a portion of a brake assembly between adjacent links. Next there is the step of actuating the brake assembly to substantially prevent movement about the hinge of the links attached to the braking mechanism.

The invention discloses a liquid phase-change brake comprising a brake rack and a brake disc. The brake rack is a sealed box. The friction part of the brake disc passes through the internal space of the sealed box. The joint between the friction part and the sealed box is moveably sealed. Reversible phase-change liquid is filled in the internal space of the sealed box. A triggering device which is electrically connected with an external control system and used for triggering the change of reversible phase-change liquid form is also arranged in the sealed box. The reversible phase-change liquid is electro-rheological liquid or magneto-rheological liquid. In the invention, the effect conversion that the reversible phase-change liquid changes from liquid state to solid state within milliseconds when an external trigger signal (electric field or magnetic field) exists and quickly restores to the original state when the external trigger signal is removed is applied in the brake, thus having the advantages of simple structure, excellent braking performance, good heat dissipation effect, low exhaustion of friction components, simple production technology and low cost.

The invention discloses a friction material of a disc brake pad. The friction material comprises the following raw materials in parts by weight: 13-18% of cashew nut shell oil-modified phenolic resin, 9-16% of butyronitrile rubber powder, 3-7% of steel wool fiber, 6-11% of calcium sulfate whisker, 2-5% of potassium feldspar powder, 3-6% of graphite, 2-6% of brown fused alumina, 3-5% of antimony sulfide, 11-16% of baryta powder, 5-9% of chromite powder, 6-11% of heavy calcium carbonate, 2-4% of zircon sand and 3-6% of brass powder. Visibly, in the preparation raw materials, the cashew nut shell oil-modified phenolic resin is adopted for replacing ordinary phenolic resin as an organic carrier of a brake pad material, so that the shortcomings of poor resistance to thermal ablation, high abrasiveness, low anti-impact strength and the like of the ordinary phenolic resin are eliminated, the performance defects of the friction material of the disc brake pad caused by the ordinary phenolic resin can be avoided, and the overall performance of the friction material of the disc brake pad can be further improved.

The invention discloses an automobile electromechanical brake, which comprises a front floating caliper and a floating caliper block. The front floating caliper is connected with a front friction disc, the floating caliper block is connected with a back friction disc through a nut-piston, a brake disc is arranged between the front friction disc and the back friction disc, and the nut-piston is connected with a motor through a boosting linkage and is connected with a gap regulating mechanism. The motor pushes the back friction disc and the front friction disc to attach onto the brake disc by the boosting linkage, thereby realizing braking. The automobile electromechanical brake has a gap regulating function, and gaps among the brake disc and the friction discs can be regulated freely, so that constancy of the brake response speed of automobiles is guaranteed and braking performance is guaranteed further. The automobile electromechanical brake is fine in braking performance, simple in structure, convenient in installation, easy to maintain and low in energy consumption.

A wind power machine for production of energy, comprises at least one rotor element (5) which can be driven by the wind and having an output load (15), in particular a generator (16), which is connected directly or indirectly to it, the rotor element (5) is intended to drive one or more hydraulic pumps (7) directly or indirectly.

The invention relates to a braking system (16) for a vehicle (10), particularly a commercial vehicle, having an operating brake device for providing an operating brake function for braking the vehicle, and a parking brake device (92) for providing a parking brake function independently of the operating brake system. In order to improve the functionality of the braking system in case of a fault, the vehicle can be braked automatically by means of the other braking device if one of the two braking devices partially or completely fails. The invention further relates to a brake pedal device for such a braking system.

The invention relates to a two-stage foot braking master valve (I type) which comprises an upper valve body and a lower valve body, wherein both the upper valve body and the lower valve body are provided with an air inlet hole and an air outlet hole, the lower edge of the upper valve body is inserted into the upper edge of the lower valve body, an upper piston assembly is installed at the upper part in the upper valve body, the upper piston assembly comprises a piston bush, an upper piston, a spring package clip and an ejector pin seat, the inside and the outside of the spring package clip are respectively provided with a pressure intensity spring and a steady pressure spring, a certain distance is reserved between the upper part of the pressure intensity spring and the lower surface of the wide disc of the ejector pin seat, and the distance enables the valve to produce a secondary pressure intensity to quickly and powerfully combine a brake block and a brake drum so as to maintain a favorable combination condition all the time and ensure a favorable brake effect all the time. Simultaneously, the friction between the brake block and the brake drum can be decreased to the greatest extent, and the brake block can be prevented from being carbonized so as to prolong the service life of the brake.

The invention relates to a three-level balance piston assembly, which comprises a balance piston, a spring wrapping clamp and a top rod base. The three-level balance piston assembly has the braking output characteristic of a 'three-step' curve, wherein three steps are named as 'three-level cadence braking'. According to the 'cadence braking' principle, compressed air can form pulses in a control pipeline and an air chamber to act on a brake pad, and an effect of acting on the brake pad by the pulses every time is equivalent to an effect of wiping the brake pad once by using a tool. Therefore, by the three-level balance piston assembly, a brake hub can be bonded with the brake pad forcefully, and the carbonization or an enamelum layer of the brake pad is also improved to a maximum degree, so that poor braking is avoided to achieve an excellent braking effect.

The invention provides an electromechanical brake control system, which includes a brake signal input unit, a wheel speed acquisition unit, a microcontroller, and a plurality of electromechanical brakes corresponding to a plurality of wheels respectively, wherein the brake signal input unit is used for generating brake signals and outputting the brake signals; the wheel speed acquisition unit is used for acquiring wheel speeds in real time and outputting the acquired wheel speed signals; the microcontroller is used for receiving the brake signals and the wheel speed signals in real time and outputting a plurality of paths of control signals according to the brake signals and the wheel speed signals, so as to control and drive the electromechanical brakes in real time; and the electromechanical brakes are used for braking the corresponding wheels respectively according to the plurality of paths of control signals outputted by the microcontroller. The electromechanical brake control system has the advantages of simple structure, small volume, rapid brake response and good brake effect.

The invention discloses a hydraulic brake system and method with a double hydraulic cylinder four-wheel failure backup. The hydraulic brake system comprises a hydraulic control unit (HCU), a brake pedal, a manpower cylinder, a liquid storage tank, a stroke simulator, a main cylinder, a ball screw, a first motor, an electronic control unit (ECU), a plurality of connecting pieces, a solenoid valve, a sensor and a brake. According to the hydraulic brake system with the double hydraulic cylinder four-wheel failure backup, the idea of more reliable and safer braking and quicker and more accurate control is embodied.

The invention provides an electronic mechanical brake which comprises a brake caliper body, a brake disc, a friction disk and an actuating unit, wherein the actuating unit comprises a motor and a movement mechanism which is connected with an output end of the motor, the movement mechanism is arranged in the brake caliper body, and the actuating unit also comprises an elastic mechanism; the elastic mechanism is sleeved on the movement mechanism and is propped against an internal surface of the brake caliper body, and the elastic mechanism is positioned in a compression state before the movement mechanism moves forward; and the movement mechanism does a straight-line motion forward, and elastic potential energy in the elastic mechanism is released so as to push the movement mechanism to do an acceleration forward motion. Accordingly, the invention provides an automobile. The electronic mechanical brake outputs a torque to generate a brake clamping force through the coupling of the elastic mechanism and the motor, and larger brake clamping force can carry out braking when the motor outputs less power; and the response time of a brake system is shortened, the output power of the motor is reduced, the braking effect is better, and the electronic mechanical brake has four-wheel parking braking action.

The invention discloses a braking method for mistakenly stepping on an accelerator during braking, and a braking device using the method and suitable for a situation when the accelerator is mistakenly stepped on during braking. The braking method compares the time Tx required by the accelerator to move from a starting position to an ending position with the preset time T for judging the mistaken stepping on the accelerator so as to judge whether the accelerator is used as a brake; the braking device suitable for the situation when the accelerator is mistakenly stepped on during braking has high working efficiency and precise and scientific monitoring process, judges whether the accelerator is mistakenly stepped on by measuring the time for the accelerator to change at two limiting positions, can also improve the capability of resisting the disturbance of the device, and greatly ensures the stable running of the braking device; simultaneously, an electric structure is adopted to improve the response speed of the device; and compared with the mechanical structure in the past, the braking device not only has high response speed, but also has a simple structure and excellent braking effect, and provides safer and more reliable guarantee for vehicle running.

The invention belongs to the technical field of automobile energy-saving equipment, and relates to a regenerative braking energy storage device for an electric automobile. An ultracapacitor module stores the regenerative braking feedback energy of the electric automobile and is connected in parallel with a storage battery to power an electric motor when the electric automobile starts and accelerates; an ultracapacitor charge-discharge controller is electrically connected with the ultracapacitor module, the storage battery and the driving controller respectively; the ultracapacitor charge-discharge controller is electrically communicated with the ultracapacitor module to control the charge-discharge process; and the driving controller is electrically communicated with the electric motor to achieve control operation of the electric motor. According to the invention, ultracapacitors store the regenerative braking feedback energy of the electric motor car to prevent adverse effects on the power supply of the electric automobile due to frequent charge and discharge, so as to achieve a long service life, and the ultracapacitors have high power density and good dynamic response.

The invention discloses a sand casting die assembly comprising a shell which is of a hollow structure. One side wall of the shell is further provided with a feed port of which the opening position isrotatably connected to a cover plate, and the inner wall of the upper side of the shell is fixedly connected to a cylinder; the output end of the cylinder is connected to a piston rod, and the end, far away from the cylinder, of the piston rod is connected to a mounting plate of which the lower end is further provided with a die; the upper end of the die is provided with a mounting block, and thelower side wall of the mounting plate is provided with a mounting groove matched with the mounting block; the mounting plate is internally provide with two cavities arranged symmetrically, and the cavities are internally provided with first slide bars arranged vertically; the opposite side walls of the two first slide bars are both provided with first clamping blocks which penetrate the cavities;and the side wall of the mounting block is provided with a first slot matched with the first clamping blocks. According to the sand casting die assembly disclosed by the invention, a clamping sand mould is simple and firm, and the die for compression molding is easy to remove and displace; and the die assembly is wide in application scope.

The invention discloses a braking device of an electric block, which consists of a motor braking mechanism, a speed reducer braking mechanism and a winding drum forcible braking mechanism, wherein the winding drum forcible braking mechanism comprises a speed sensing disk connected with a protruding end of a winding drum output shaft, a speed sensor for sensing the rotating speed of the speed sensing disk, a rotating speed electric control part connected with the speed sensor, a ratchet wheel and a pawl mechanism of which the motion is controlled by the rotating speed electric control part; the ratchet wheel is fixedly connected to opposite ends of the speed sensing disk of a winding drum; and the position of the pawl mechanism is adapted to the ratchet wheel. By adopting the structure, the braking device of the electric block increases the safety coefficients of the electric block, can keep good braking performance of the electric block for a long time, and avoids the phenomena that the electric block injures on-site workers or breaks lifted goods in work.

A diaper or adult incontinence garment including a backsheet and a sublayer. The sublayer may include one or more acquisition layers and one or more regions having a multitude of through or blind holes. The sublayer may isolate feces away from the skin and at the same time provide liquid acquisition. Certain regions of the sublayer may have a total open area of from 10% to 50% of the total surface area of the sublayer. The holes have an average smallest dimension of at least 3 mm. The sublayer has an average caliper of from 2 mm to 6, and an average caliper loss after wetting and under pressure of 0.3 psi of less than 20%.