333results about How to "Reduce drag" patented technology

A guided aerial delivery device which can be used to safely and accurately deliver a payload and supplies from an aircraft in flight to a specific target location in a reduced time. The aerial delivery device uses an overloaded ram-air drogue parachute controlled by a guidance system to steer the payload towards the intended target. When a selected altitude is reached, a recovery parachute is activated and the payload descends the remaining distance under the recovery parachute.

A Zero Turn Radius vehicle is provided that utilizes a steering system including front steerable wheels that is synchronized with a drive system that has dual independent rear drive units to drive the rear wheels as well as steer the vehicle. The synchronization of the steering system with the drive system allows for true zero radius turning and reduced drag and wear on the vehicle especially the ground engaging wheels.

The present invention relates to an afterbody flow control system and more particularly to aircraft or missile flow control system for enhanced maneuverability and stabilization. The present invention further relates to a method of operating the flow control system.In one embodiment, the present invention includes a missile or aircraft comprising an afterbody and a forebody; at least one activatable flow effector on the missile or aircraft afterbody; at least one sensor each having a signal, the at least one sensor being positioned to detect forces or flow conditions on the missile or aircraft afterbody; and a closed loop control system; wherein the closed loop control system is used for activating and deactivating the at least one activatable flow effector based on at least in part the signal of the at least one sensor.

A portable two-piece motorcycle windshield assembly includes an upper windshield panel having a lower edge and a lower windshield panel having an upper edge with a shape complementary to the shape of the upper windshield panel defining the lower edge. Connector rods are provided for releasably connecting the upper windshield panel and the lower windshield panel together. The lower edge of the upper windshield and the upper edge of the lower windshield mate together in edge-to-edge aligned registration with each other to collectively form a two-piece windshield. A pair of connector brackets are carried adjacent a bottom edge of the lower windshield panel for releasably attaching the assembled windshield to handlebars of a motorcycle.

A fluid dynamic section provides one or more fixed size escapelets through a foil body to reduce the induced and interference drag caused by trailing vortices and similar wake turbulence. The escapelets, which can be provided in both aerodynamic and hydrodynamic structures, such as wings, tail sections; rotary blades, guy wire frames, wing sails, and various underwater keels and wing keels. The escapelets transfer energy from an inlet located in the high-pressure surface of the foil or foil body to an outlet located in the lower-pressure surface, allowing energy that would normally form a vortex at the tip of the foil to be redirected and dissipated in a beneficial way. As a result, drag is reduced and fuel economy is increased, while at the same time increasing the authority of ailerons and similar flight control surfaces, allowing aircraft that were not previously spin recovery rated to become spin recoverable.

The invention discloses a gravity energy storing system relying on a massif. The gravity energy storing system comprises a high-altitude stacking platform, a low-altitude stacking platform, a plurality of standard weights, electric power increasing and generating devices and a control system. The position between the high-altitude stacking platform and the low-altitude stacking platform is paved with at least two inclined tracks, each inclined track is provided with at least one section of continuous track and each section of continuous track is provided with one set of electric power increasing and generating device. Each set of electric power increasing and generating device comprises a trailer, a cable, a cable winch and an electric generating all-in-one machine, wherein the trailer is arranged on the corresponding continuous track and connected with one end of the cable, the cable winch is installed on the edge of the platform at the end of the corresponding continuous track, and the cable winch is connected with the electric generating all-in-one machine. The control system controls the working conditions of transferring, transporting and stacking equipment and the electric power generating all-in-one machine. The gravity energy storing system is high in efficiency, low in cost, small in occupied space and high in safety coefficient.

An aqueous composition comprising, in addition to water: (a) one or more surfactant materials selected from polyoxyalkylene condensate derivatives of lanolin or a lanolin derivative; and (b) a lipid component comprising one or more lipid materials, especially lanolin or a lanolin derivative, present as particles emulsified by the said one or more lanolin-derived surfactant materials and having a median particle size of less than about 5 mum, especially from 0.01 to 1 mum. The compositions have very good physical stability and are particularly useful as carriers for transdermal delivery of pharmaceutical actives to the human skin.

Methods and systems for modular fuel storage and transportation are provided. In an embodiment, a fuel storage system includes one or more fuel containers each supported by a fuel container support assembly. The fuel storage system may be mounted to a transportation device such as a vehicle or used in a stand-alone fashion. Each support assembly may include a plurality of detachable end support members such as end support members configured to support the end portions of the fuel container and side support members configured to support the body portion of the fuel container. Some of the end support members may include neck grooves such that when the end support members are coupled, the neck grooves form an enclosure around the neck portion of the fuel container. In an embodiment, the support assembly is configured to facilitate release of excess pressure in the fuel container.

The device has a coupling arm with head born elastically pref. via a stabilizer joint. The joint transmits traction and pressure forces into the bogie via an outer housing (10) and energy absorption systems (9,11). The systems are switched in series and are located in the housing. One and / or both systems have an irreversibly deformable deformation element (23), e.g. a mechanical shock absorption part. This is e.g. a tube, which is deformed by a nozzle (25) or a pressure ring (21), after a set pressure and / or traction load limit on shear ring (20) and / or pin has been exceeded. -

A diversion apparatus, adapted to be arranged at the tail end of a vehicle, includes a diversion assembly and a slide mechanism. The inside of the diversion assembly is hollow and formed an airflow channel. The slide mechanism is arranged fixedly at the tail end of the vehicle body and has slot tracks extended along the lengthwise direction of the tail end of the vehicle body. The diversion assembly arranged on the slot tracks can be activated and slipped thereon. Therefore, the diversion assembly can be slipped on the slot tracks and activated toward the front of the vehicle body to prevent the opening of the door leaf of the vehicle from being hindered by the diversion assembly.

Embodiments provide an aerodynamic fairing system that may comprise a base configured to mount to a vehicle, an arm coupled to the base at a proximate end and extending laterally, an a fairing mounted to the arm having an inboard and an outboard surface. The fairing outboard surface may provide an aerodynamic outer surface to direct flow to an angle to the rear. The arm may a fixed or adjustable length arm. The arm may provide a mounting area for a mud flap such that aerodynamic system may act as a mud flap hanger. Embodiments also provide an adjustable mud flap hanger.

An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.

The Shrouded Vertical Axis Dual-Turbine Generator is a system consisting of a superstructure in the shape of a symmetrical foil, with a vertical axis turbine set into the camber of each side. The leading edge of the superstructure increases the speed of the water or air current passing around the generator. The trailing edge creates a slip stream which reduces turbulence. Shutters on each side of the superstructure control the amount of current in contact with the turbines by sliding forward or rearward to increase or decrease flow to the turbines. The turbines are modular in design and can be customized into longer or shorter turbines, depending on application.

A drive traveling mechanism of a peristaltic pipeline robot mainly solves the problem that existing pipeline internal drive travelling mechanism are lower in driving force and hard to drive robots to run for long distance in pipelines. The drive traveling mechanism of the peristaltic pipeline robot is characterized in that the drive traveling mechanism consists of two crank-and-rocker mechanisms and a worm-and-gear mechanism which share a robot body as a framework, a connecting rod of one crank-and-rocker mechanism is of an elastic connecting rod structure, and the elastic connecting rod penetrates through a rocker which swings around the robot body to be further connected with a gear rotating around the robot body so as to form one crank-and-rocker mechanism. The two crank-and-rocker mechanisms identical in structure are respectively arranged from front to back. When a motor drives the worm to drive the gear to rotate, traveling legs connected to the two crank-and-rocker mechanisms arranged from front to back realize translational motion. The two crank-and-rocker mechanisms serving as components of the drive traveling mechanism are distributed along the radial direction of the worm by 120 degrees and are driven by the same worm. The drive traveling mechanism has the advantages that traveling legs can contact with walls of pipelines sufficiently to generate higher dragging force so that the robot can travel by a long distance in the pipelines.

A generator has a surface structure relative to a base structure and capable of being positioned within a field of flow. The surface structure also has an electrogenerative portion positioned relative to the surface structure and the base structure. The electrogenerative portion is preferably a piezoelectric or electromagnetic structure, although other types of structures are known within the art. The field of flow exerts forces upon the surface structure which causes surface structure movement relative to the base structure through the electrogenerative portion. This generates electricity which causes movement in the surface structure.

A catheter includes a catheter body with a compliant balloon secured at a distal end of the catheter body. The balloon includes a proximal end and a distal end. At least one infusion aperture is positioned directly adjacent the proximal end of the balloon.

The invention discloses a flexible circuit board, a flexible LED lamp bar and a manufacturing method of the flexible LED lamp bar. The flexible circuit board comprises a first insulation layer, a second insulation layer and a circuit layer. The first insulation layer and the second insulation layer are attached to the two sides of the circuit layer respectively. The first insulation layer and the second insulation layer are respectively provided with a folding portion in the length direction. The folding portion of the first insulation layer corresponds to the folding portion of the second insulation layer in position. The circuit layer comprises a set of power lines and at least one light source line. The light source lines and the power lines are arranged on the two sides of the folding portions in a separable mode. The width of the folded flexible circuit board is smaller, so that more occasions where the flexible circuit board with the smaller width is needed are met, and the power lines and the light source lines are not bent when the flexible circuit board is folded. Due to the existence of the folding portions, folding face layers of the power lines and folding face layers of the light source lines can be prevented from tilting up along the folding portions, the folding face layers of the power lines and the folding face layers of the light source lines are easily attached together, and the wrinkling phenomenon is reduced.

The invention provides a high-speed and energy-saving train which can effectively prevent a fluid hole from being sealed in the motion process, greatly reduces the fluid resistance and the lift resistance in the traveling process and is matched with a novel power system so as to realize the energy saving. The invention provides two schemes for the high-speed and energy-saving train, wherein one scheme is characterized in that the fluid resistance in the traveling process of the train is reduced and the energy is saved by arranging a fluid passage which penetrates through the whole train main body as well as a leading-in mouth and a leading-out mouth at the front and back; besides, a turbulence surface or a second fluid passage is arranged at the bottom of the train in both schemes so that a path that fluid passes through the bottom is larger than or at least equal to a path that the fluid passes through the upper part, therefore, the lift resistance is eliminated, the weight of the train is 1 / 5 of the weight of the conventional train, and the energy consumption for overcoming the mass motion is greatly reduced. By matching with a hybrid power system, the high-speed and energy-saving train can travel for a long distance without a power supply network on the way, thereby avoiding catastrophic effects on the traveling process from natural disasters.

The present invention aims to provide a surface modification method for a rubber vulcanizate or a thermoplastic elastomer, which can impart excellent sliding properties and excellent durability against repeated sliding motion and can allow the surface to maintain the sealing properties, without using expensive self-lubricating plastics. The present invention relates to a surface modification method for modifying a rubber vulcanizate or a thermoplastic elastomer as an object to be modified, the method including: step 1 of forming polymerization initiation points on the object to be modified; step 2 of radically polymerizing a monomer, starting from the polymerization initiation points, by irradiation with LED light at 300 nm to 400 nm to grow polymer chains on a surface of the object to be modified; and step 3 of esterifying, transesterifying or amidating side chains of the polymer chains.

The invention discloses a low-drag automobile disc floating brake, which comprises a mounting bracket, a floating caliper body, a piston rod, a guide pin, a first lining, a second lining, a first friction plate and a second friction plate, and the floating The caliper body is installed on the mounting bracket through the guide pin, the guide pin is covered with an elastic piece, the floating caliper body is provided with a piston cylinder, the first oil port and the second oil port, the piston rod is accommodated in the piston cylinder, and the piston rod includes a head The head of the piston rod divides the piston cylinder into a left chamber and a right chamber, one end of the piston rod tail is accommodated in the right chamber, and the other end of the piston rod tail is fixed with the first lining, the second The two linings are fixed on the floating caliper body, and the first lining and the second lining are respectively fixed with a first friction plate and a second friction plate. The low-drag automotive disc-type floating brake proposed by the invention solves the problem of drag caused by the two friction plates still in contact with the brake disc after the release of the traditional floating-caliper brake.

This hybrid drive device separates the lubricant supplied to a clutch and to an electric motor and improves lubrication and cooling of the clutch and electric motor. Lubricant from a clutch lubrication hole (143) and an electric motor lubrication hole (145) and consisting of shaft core lubrication is partitioned by a rotor support member (126). The lubricant which lubricates the clutch (6) and flows out is separated by the cover member (187) and does not flow into the coil end (24a) on one side. The electric motor lubricant is guided to the coil end (24b) on the other side, and, passing through an oil passage (186), is guided to the coil end (24a) on the first side.

A cable containing an optical fiber is used to transmit data between an underwater remotely operated vehicle (ROV) and a support vessel floating on the surface of the water. The ROV pulls the cable through the water and as the ROV dives away from the support vessel, the optical fiber is released from the support vessel. Excess tension in the cable can damage the optical fiber and the tension can be highest close to the ROV. To prevent potential damage to the optical fiber, the ROV can store a portion of the cable and release the cable if the detected tension approaches the maximum working load. When the tension drops to a lower safe level, the release mechanism can stop releasing the cable.

A tunable generator has a surface structure for contacting an exterior fluid flow relative to a base structure. The contacting surface structure also has an electrogenerative portion positioned relative to the contacting structure and the base structure. The electrogenerative portion is preferably a piezoelectric or electromagnetic structure, although other types of structures are known within the art. The contacting surface is mechanically coupled to portions of the base structure through one or more elastic elements. The various portions of the base structure can be positioned relative to other base structure portions to alter the elasticity of the system or the tensioning of the elastic elements. The field of flow exerts forces upon the contacting structure which causes movement in the contacting surface structure relative to the base structure through the electrogenerative portion.

The VTOL aircraft of the present invention has fixed-wings which can be monoplane, biplane or tri-plane and tiltable rotors on outriggers which extend from the fuselage and / or wings. The rotors on the outriggers can be driven by engines located in the fuselage or wings via a transmission system such as a shaft, pulley, or pressurized air using pumps. If rotors are driven by jets at the tips, fuel is fed through pipes inside of the outriggers. The rotors and engines can be located at the ends of the outriggers or the rotors may be separate from the engines and tilting only the rotors reduces structural requirements and weight of the aircraft. The rotors can be tilted over ninety degrees from the vertical position forwards and backwards, sideways if needed for lateral movement. The outriggers can be configured in various ways depending upon how many rotors are used and where the engines are located. Placing rotors on outriggers in the spaces least obstructed by the wings and fuselage reduces drag which increases efficiency and also offers a flexible platform for various hybrid designs.

The invention relates to a touch-screen Pinyin input method. A used touch screen comprises a plurality of composite keys, each composite key comprises a plurality of character keys and presents the key values of the characters, for example, a composite key comprising the characters of c, s and z also presents the key values of ch, sh and zh. The method comprises the following steps: using a penpoint to touch the composite key to spring out a plurality of key values presented by the composite key presents on the periphery of the composite key; and dragging the penpoint to a corresponding key value region for selecting an initial consonant or an initial character; continuing dragging the penpoint to a corresponding compound vowel region and select corresponding compound vowels after a compound vowel region springs out; and selecting corresponding Chinese characters from a sprung Chinese character region. The invention can finish the input of the initial consonants and the compound vowels by two strokes, enables the compound vowel region to be preferably sprung around the selected initial consonant or the initial character, namely dynamically track the initial consonant or the initial character, is convenient and rapid to input and has high input efficiency.