57results about How to "High inflation pressure" patented technology

A method of making a fiber-reinforced medical balloon is described herein. The method entails pressurizing a portion of a balloon, and ejecting a fiber precursor fluid from at least one nozzle adjacent to the portion. One or more fibers are formed from the fiber precursor fluid and deposited on an exterior surface of the portion. Preferably, the fibers are polymer nanofibers, and the method is carried out using an electrospinning process.

An inflatable toroidal-shaped balloon for medical use is provided with a central opening traversing the balloon in an inflated state. The balloon is useful to achieve larger outer diameters than conventional balloons.

This invention relates to the field of balloon catheters and more particularly to catheter balloons having controlled failure mechanisms for the prevention of catastrophic failure of the balloon during overpressure conditions.

The invention is based on a heating system for a motor vehicle, which is driven by an internal combustion engine (10), in which a heater (30) includes a combustion chamber (32) with a fuel injection device (34) and an ignition device (35) and also includes an air blower (40), and is triggered as a function of operating parameters and/or ambient parameters of the motor vehicle and/or of the internal combustion engine (10) or by actuating signals. It is proposed that the combustion chamber (32) is connected to the exhaust system (62) of the internal combustion engine (10) in the region of an exhaust manifold (62) of the internal combustion engine (10), between outlet valves (24) and a exhaust gas catalytic converter (56), via an exhaust line (42).

An internal combustion engine has a cylinder and an exhaust-gas turbocharger comprising a compressor arranged in an intake system and a turbine arranged in an exhaust-gas discharge system. Various lines are provided for conducting gases including 1) a bypass line branching off from the inlet system downstream of the compressor so as to form an inlet-side junction, and 2) a recirculation line branching off from the exhaust-gas discharge system upstream of the turbine so as to form an outlet-side junction which opens into the bypass line. A first control element at the outlet-side junction adjusts an exhaust-gas quantity conducted through the recirculation line. A second control element at the inlet-side junction has a first position that separates the bypass line from the cylinder and connects the intake line to the cylinder, and a second position that separates the intake line from the cylinder and connects the bypass line to the cylinder.

A method and a device for operating an internal combustion engine improve the response of the internal combustion engine and increase its torque. An exhaust valve of the combustion chamber of the internal combustion engine is opened during a discharge phase of the internal combustion engine for discharging exhaust gas, generated via combustion, from a combustion chamber into an exhaust system of the internal combustion engine. The exhaust valve is closed again and re-opened during this discharge phase.

In a region where the engine load is less than a first predetermined value, only a second exhaust valve that opens and closes a second exhaust passageway that bypasses a turbine of a supercharger is opened. In a region where the engine load is greater than or equal to the first predetermined value and less than a second predetermined value, both the second exhaust valve and a first exhaust valve that opens and closes a first exhaust passageway that leads to the turbine are opened. In a region where the engine load is greater than or equal to the second predetermined value, only the first exhaust valve is opened. A predetermined value for the time of lean combustion is set lower than a predetermined value for the time of stoichiometric combustion.

The invention discloses a gas pipeline sealing detection device capable of being pressurized and with a scale, a detection method and an application. The device comprises a U-shaped transparent hose water column meter; a horn mouth is formed in one end of the U-shaped transparent hose water column meter, and the other end is connected with a hose through a quick joint; the other end of the hose isconnected with a to-be-detected gas pipeline detection port through a quick joint; a tee joint is arranged on the hose; a bypass of the tee joint is connected with an inflation balloon used for inflating the U-shaped transparent hose water column meter and a to-be-detected gas pipeline system; and a movable scale capable of calibrating the initial liquid level is arranged on a middle beam betweenthe transparent hoses on the two sides of the U-shaped transparent hose water column meter. The invention further discloses a detection method and application of the device. According to the invention, the problems of rapid pressurization, insanitation in pressurization, difficulty in large-pressure inflation, poor sealing performance and original water level calibration are solved.

A pressure accumulator for connection to a hydraulic fluid-driven percussion device. The percussion device includes at least one impact piston arranged to carry out a reciprocating motion caused by the pressure from the hydraulic fluid. The pressure accumulator is arranged in communication with a hydraulic fluid space of the impact piston. The pressure accumulator includes a space that extends at least partly around the impact piston when the pressure accumulator is mounted on the percussion device. A partition divides the space into two separate pressure chambers so that the pressure chambers are located an axial direction of the impact piston in relation to each other when the pressure accumulator is mounted on the percussion device. A first of the two separate pressure chambers is intended to be filled with a compressible medium. A second pressure chamber is in fluid communication with the hydraulic fluid space of the impact piston.

The invention provides a near-isothermal compressed-air energy storage system and an operating method thereof. The near-isothermal compressed-air energy storage system comprises a high-pressure air storage space, a low-pressure air storage space, a heat collection system, a multi-tank water-pumping compressed-air energy storage device, an energy release part and a compressor, wherein the energy release part comprises a reheater and an expansion turbine; an outlet of the low-pressure air storage space, the multi-tank water-pumping compressed-air energy storage device and an inlet of the high-pressure air storage space communicate with one another sequentially; the outlet of the high-pressure air storage space, the reheater and the expansion turbine communicate with one another sequentially; an outlet of the expansion turbine communicates with the low-pressure air storage space; an inlet and an outlet of the heat collection system communicate with an outlet and an inlet of a heat-conducting medium of the reheater separately; near-isothermal compression is realized in the compression process, so that remarkable compression heat is avoided; closed circulation is adopted, so that the overall air operating pressure is increased, and the energy density of the system is increased; and a multi-tank compression structure is adopted, so that the defect of huge water consumption of a single tank is overcome; and large-scale application of the energy storage system is realized.

The present invention concerns a bicycle wheel with a rim for a tubeless tyre, characterised in that it is provided with a rim 1 intended to receive a number of fixing elements 6, which are in accordance with the number of spokes 2, such fixing elements being assembled by fitting and sliding between the wheel's hub 8 and the rim 1 and which are fixed into the desired positions. Therefor it is necessary to make special holes in the upper part of the rim 1 without the need to make any holes in the lower wall.

Provided is an air-pressure auto-excitation type vibrating subsoiler. The subsoiler comprises a frame, multiple subsoiler shovels and an air pressure adjusting system; the frame includes a cross girder A, a cross girder B, depth limiting wheel supporting arms and suspension arms; a depth limiting wheel is arranged under each depth limiting wheel supporting arm, the cross girder A is arranged parallelly to the cross girder B, an air cylinder A used for adjusting the height of the cross girder A is also arranged between the cross girder A and the cross girder B, the subsoiler shovels are installed on the cross girder A, and the suspension arms are installed on the cross girder B; the subsoiler shovels are connected to the cross girder A through connecting arms capable of swinging up and down, air cylinders B are arranged on the connecting arms, and the` air pressure adjusting system includes an air pressure part and two air pressure control parts, wherein the two air pressure control parts are used for controlling the working states of the air cylinder A and air cylinder B respectively; an ultrasonic probe is arranged on the cross girder B and also connected to a central control system. By adopting air-pressure type auto-excitation vibration, fast adjustment of the rigidity of a vibration source can be achieved, the adaptability of the vibration source to different degrees of soil resistance is improved, and therefore the subsoiling effect is better improved.

The invention relates to a method and device for starting a drive system of a motor vehicle, specifically relates to a method for starting the drive system of the motor vehicle with an internal combustion engine, and especially to a method used for overspeed protection of the drive system. The invention also relates to a device for performing such method. According to the invention, when at least one starting condition used for starting the overspeed protection of the drive system is met, the overspeed protection is started, and the electric generator mold of the electrification exhaust turbine supercharger is started.

The invention discloses a latex glove overturning machine and a use method and application thereof. The overturning machine comprises an overturning device, wherein the overturning device comprises aframe, the frame is internally provided with a rotating divider, one side of the rotating divider is provided with a motor, an output shaft of the motor is connected with the rotating divider, the topof the rotating divider is provided with a feeding cylinder, the bottom of the feeding cylinder is provided with a one-way air inflation nozzle, the bottom of the one-way air inflation nozzle is provided with an air inflation cylinder, the air inflation cylinder is arranged on the bottom of the inner side of the frame, the top of the feeding cylinder is provided with a limiting cylinder, the twosides of the limiting cylinder are provided with connecting rods respectively, and the connecting rods are fixedly connected with the inner wall of the frame. The latex glove overturning machine and the use method and application thereof have the advantages that the overturning device is arranged to be conductive to improving the efficiency of inward and outward overturning of gloves, the operation is simple and convenient, running is stable, the working speed is further increased, and the labor intensity of workers is effectively reduced.

The invention relates to a Kr-85 sealed radioactive source vacuum inflation system and an inflation method. The system comprises a booster pump, an aluminum protection module, a radioactive source tank, a low-temperature recovery tank, a reserved expansion port, an instrument, a valve assembly, a pneumatic control component, a pneumatic pump, a vacuum pump and a control box, wherein the pneumaticpump, the vacuum pump and the control box are used in matching. The inflation method comprises the following steps of source box installation; system vacuumizing; source box leakage detection; raw material gas releasing; inflating or pressurizing and inflating; source shell connection cutting off and source shell sealing; liquid nitrogen adding, and pipeline gas recovering by a raw material tank;and liquid nitrogen adding, and residual gas recovery by a tail gas tank. By means of the system, the operation safety is improved, the Kr-85 sealed source performance is improved, the production process is simplified, the inflation pressure is increased, emergency treatment is conducted on accidents in the radioactive source production process, safety protection measures are set, misoperation isprevented, and meanwhile, efficient recovery of residual radioactive gas is achieved.