32results about How to "Sufficient thrust" patented technology

A door closer capable of adjusting its closing speed, including a gas adjusting apparatus arranged on the door frame, a driving apparatus arranged on the door, and a lever is provided. One end of the lever is movably connected to the gas adjusting apparatus, and the other end is connected to the driving apparatus. The gas adjusting apparatus includes a sliding rail arranged on the door frame, and a sliding member cooperated with the sliding rail; a hermetic chamber is formed by the sliding member and the sliding rail, an adjusting member, for adjusting the exhaust of the hermetic chamber, is configured on a side wall of the hermetic chamber. The lever is movably configured on the sliding member.

The design and refinement of a tethered hovering platform into a feasible working system is presented. To determine a starting point for the design, a detailed historical search was conducted to find the history and the current state of such technology. Real world current needs are analyzed to produce a mission specification and to drive the preliminary vehicle design. Analysis of environmental conditions and decisions about an initial payload package are made in conjunction with motor and propeller sizing. Initial concept testing to discover feasibility and operational issues was performed; from this, instability issues were discovered. Analyzing these instability issues using known rotorcraft and momentum effects, in conjunction with flight testing, yields possible solutions to the problem. The use of constrained layer dampers as a means of passive stabilization is addressed and suggested as the preferred solution. Testing of passive constrained layer damping verifies the stability of the solution. The system components and manufacturing cost is presented in comparison to current systems using active stabilization.

A positive displacement sorter apparatus and method includes providing a plurality of slats being interconnected in an endless web, an upper run of the web defining a conveying surface, and a plurality of pusher shoes gliding along at least some of the slats to laterally displace articles on the conveying surface. A linear motor system is provided to propel the web and includes a plurality of linear motor secondaries at the slats and at least one primary for propelling the secondaries. A control system controls the primaries.

A door closer capable of adjusting its closing speed, including a gas adjusting apparatus arranged on the door frame, a driving apparatus arranged on the door, and a lever is provided. One end of the lever is movably connected to the gas adjusting apparatus, and the other end is connected to the driving apparatus. The gas adjusting apparatus includes a sliding rail arranged on the door frame, and a sliding member cooperated with the sliding rail; a hermetic chamber is formed by the sliding member and the sliding rail, an adjusting member, for adjusting the exhaust of the hermetic chamber, is configured on a side wall of the hermetic chamber. The lever is movably configured on the sliding member.

The current invention provides significant performance improvements or significant energy savings for fans used in these applications: personal, industrial and automotive cooling, ventilation, vacuuming and dust removal, inflating, computer component cooling, propulsors for unmanned and manned air vehicles, propulsors for airboats, air-cushion vehicles, airships and model aircraft. Additionally, the invention provides higher performance such as higher lift and higher lift efficiency to small air vehicles. These advantages are achieved by using plasma actuators to provide active flow control effectors into thin fan blades and wing.

A catalytically activated transient decomposition propulsion system provides thrust by decomposing flow controlled propellant in contact with a catalyzing agent using a fixed volume of liquid propellant that is placed in contact with the catalyst within the decomposition chamber by a calibrated flow control valve. After injecting the liquid propellant into the decomposition chamber, the valve returns to the closed position while surface tension holds the liquid within the decomposition chamber until complete decomposition and exhaust of the warm gaseous products through a converging and diverging nozzle occurs. The increasing and decreasing transient pressure in the decomposition chamber changes each cycle in response to flow control valve actuation as the decomposition process is repeated.

A door closer capable of adjusting door closing speed, includes a pneumatic cylinder on the door frame, a hydraulic cylinder on the door, and a lever. One end of the lever is movably connected to the pneumatic cylinder, and the other end is connected to the hydraulic cylinder. The pneumatic cylinder includes a sliding rail, and a sliding member cooperated with the sliding rail. A hermetic chamber is formed by the sliding member and the sliding rail. An adjusting valve, for adjusting the air exhaust of the hermetic chamber, is provided on a wall of the hermetic chamber.

An optical recording and / or reproducing apparatus with an optical pickup actuator having high thrust. The optical pickup actuator may include a lens holder which holds an objective lens and is movably supported by a supporting unit, and a magnetic driving unit which drives the lens holder in a focusing direction, a tracking direction, and / or a tilting direction. The magnetic driving unit includes a surface-triple pole magnet portion and a coil portion. The surface-triple pole magnet portion has a plurality of polarized, i.e., differently magnetized, areas formed by facing sides of two magnets among three magnets. The coil portion includes tracking coils and tilt coils disposed to interact with the polarized areas of the surface-triple pole magnet portion and a focusing coil disposed to interact with a non-polarized area of the surface-triple pole magnet portion.

A satellite thruster increases satellite efficiency. The Linear Actuated μCAT has a stepper motor to move the ablative electrode forward. A LabVIEW program and Arduino microcontroller are used to analyze the Linear Actuated μCAT to determine how many steps are required for re-ignition, arc current, and the validity of the feed system. Results from testing show that micro-stepping the stepper motor is an effective way to replenish the cannibalized electrode for propellant.

The invention provides an aircraft launching steam ejection boosting device which has a simple structure, a large ejection boosting force, sufficient continuous thrust, a short repeated ejection time interval, convenience for operation, a wide application range, convenience for transportation and installation and a high battle damage repairing speed. The aircraft launching steam ejection boostingdevice comprises a flight deck, a sliding pipeline, a steam ejection booster and an aircraft connector, wherein a deceleration resetting device is arranged at the front part of the sliding pipeline; and the back part of the sliding pipeline is provided with a heating device; the steam ejection booster comprises a bullet-shaped shell, a clapboard, overheating vaporizers, a water inlet pipe and a water spraying pipe, wherein the bullet-shaped shell is provided with an opening at the back part; the overheating vaporizers are distributed in a high-temperature steam generation room axially; the water inlet pipe arranged at the tail part of the shell passes through the high-temperature steam generation room to communicate with a high-temperature pressure-bearing water tank and has a check valve; the water spraying pipe is arranged on the high-temperature pressure-bearing water tank and is provided with an ejection control valve; the water spraying hole of the water spraying pipe is positioned at the front part of the high-temperature steam generation room; and a waste water recovery pipeline is arranged under the sliding pipeline.

The invention provides a visualized test rack for contact engagement of a handcart type breaker, and belongs to the technical field of machinery. The test rack comprises a visualized shell, a rack, a moving-contact mounting and adjusting plate, a moving contact, a fixed contact, a fixed-contact mounting and transferring flange, a support base, a screw rod and double-nut assembly and a hand wheel. The moving-contact mounting and adjusting plate is mounted on the inner side of the left end of the rack, and is used for adjusting a mounting position of the moving contact. The screw rod and double-nut assembly is mounted at the right end of the rack in a sleeved manner. The hand wheel is mounted at the right end of the screw rod and double-nut assembly. The fixed-contact mounting and transferring flange is mounted at the left end of the screw rod and double-nut assembly, and is used for connecting the fixed contact with the screw rod and double-nut assembly. The visualized shell is mounted on the periphery of the rack. By the test rack, the problems such as tedious adjustment, frequent movement and manpower and material resource waste of instruments such as contact engagement depth measuring devices for handcart type breakers of closed armoured high-voltage switch cabinets are solved, and device production efficiency is improved.

An image stabilizing apparatus of the present invention includes a laminated substrate 19 that has a coil pattern, a hall element 21 fixed to the laminated substrate 19, a magnet 20, a back yoke 22, an opposing yoke 23, and a flexible printed circuit board for wiring the coil pattern on the laminated substrate and the hall element 21, the opposing yoke 23 being stepped (indentation-type recesses 23a, 23b) in a portion opposing the hall element 21. Reduction in size, weight and cost are thereby realized in a lens-shift image stabilizing apparatus.

The invention provides a push-lean type rotational guide device which comprises a drill collar body, wing ribs, an outer cylinder and a hydraulic control system, wherein the wing ribs are mounted on the outer circumference of the drill collar body; the drill collar body is sleeved by the outer cylinder; the outer cylinder is kept static relative to the drill collar body; the hydraulic control system comprises an oil storage cavity and an execution mechanism; the execution mechanism comprises an oil cylinder communicated with the oil storage cavity and a piston acting on the wing ribs; the hydraulic control system is capable of conveying hydraulic oil between the oil storage cavity and an oil cylinder, and then the wing ribs can make radial telescopic movement under the action of the piston.