43results about How to "High mechanical efficiency" patented technology

A sonic actuator including a multi-layer membrane having a non-metallic elastomeric dielectric polymer layer with a first surface and a second surface, a first compliant electrode layer contacting the first surface of the polymer layer, and a second compliant electrode layer contacting the second surface of the polymer layer. The actuator further includes a support structure in contact with the sonic actuator film. Preferably, the non-metallic dielectric polymer is selected from the group consisting essentially of silicone, fluorosilicone, fluoroelastomer, natural rubber, polybutadiene, nitrile rubber, isoprene, and ethylene propylene diene. Also preferably, the compliant electrode layer is made from the group consisting essentially of graphite, carbon, and conductive polymers. The support structure can take the form of grid having a number of circular apertures. When a voltage is applied to the electrodes, portions of the film held at the aperture of the support structure can bulge due to the electrostriction phenomenon. The resultant “bubbles” can be modulated to generate sonic vibrations, or can be used to create a variable surface for airflow control.

The double pendulum milling head driven by the AC permanent syntactic rotor torque motor having a cross hollow shaft, whose both ends fixed on the rotor of the horizontal torque motor at both ends of the A shaft. Acting as an integral, they are fixed on the rotor of the vertical torque motor of C shaft. In this way, vertical motor driving the milling head to rotate around C shaft, and A shaft horizontal motor driving the pendulum of milling head around A shaft. It complete the complex machining of the working piece through compound motion in two directions matching the high speed revolution of the shaft itself. It is compact in structure, simple of drive, good in rigidity, smaller in mechanical components quantity, higher reaction sensitivity, free from wear and reverse gap, being able to machining for a five-face body with high precision.

This invention refers to a hydraulic or pneumatic machine with tilting blades, running either as an engine on a fluid flow or on pressure fluid or as a pump or a compressor. The hydraulic or pneumatic machine on a fluid flow according to the invention consists of a cylindrical casing with inlet and outlet openings, radially arranged, diametrically oposed, along the fluid flowing direction, some disk like rotors with tilting blades, hinged over their front faces and provided with driving mechanisms of their own, and some fixed drums located between the rotors, concentrically to them, making inside the machine some channels, symetrically arranged on one or several stages. Flowing through the channels, the fluid drives the tilting blades causing the movement of the rotors, all the rotors moving to one sense being coupled to the same outlet shaft of the machine. The tilting blades of the hydraulic or pneumatic machine operating according to the invention with pressure fluid, run in variable depth grooves located in the rings between the front faces of the rotors and connected to the fluid circuit, the operation conditions of the machine—motor or pump—being determined by the moving sense of the blade in the groove.

A turbocharger (1) with an axial flow turbine (2) includes a compressor stage (4) using active casing treatment (50) for choke flow improvement. With switchable slots (52, 54), one of the slots (52) may be between the compressors full and splitter blades (27, 23) and one of the slots (54) can be located downstream of the compressors splitter blades (23) to maximize choke flow capacity. In turbochargers with a wastegate assembly, an actuator (32) may control both a wastegate control valve (30) and an active casing treatment slot selection valve (56).

The invention relates to a method for correcting the online fluid system, comprises that 1, selecting the node of online fluid system, measuring the fluid pressure; 2, measuring the power of power device; 3, checking the tube of system; 4, measuring the character of tubes; 5, replacing the power device. The invention can improve the efficiency of power device 10% higher than general condition, reduce energy consumption more than 40%, and prolong the service life of fluid transmitter.

A spring assisted drug delivery device (80, 90, 100) is provided comprising a housing (4) and a lead screw (22) having a longitudinal axis, a distal end and a proximal end that is rotatably fixed during dose setting and dose delivery and axially moveable in a distal direction relative to the housing. The device further comprises a drive nut (23) threadedly engaged and screwable along the lead screw threaded shaft and a number sleeve (24) threadedly engaged with the housing (4) to be screwable relative to the housing (4). A dial link (25) is connected with the drive nut (23) and axially moveable and rotatably fixed relative to the drive nut (23) and an inner sleeve (29) is threadedly engaged with the number sleeve (24), the inner sleeve (2) being axially moveable and rotatably fixed relative to the housing (4). A mid-body (20) is axially fixed inside of the housing (4). A spring (82, 92, 102) is provided that assists a user of the device during a dose administration step.

To keep a discharge pressure or a discharge flow rate of a pumping system that jets a fluid from a nozzle selected from a plurality of nozzles a set value every selected nozzle. A pumping system that jets the fluid from the nozzle selected from the plurality of nozzles is provided with: a piston pump as a positive-displacement pump; a permanent-magnet type synchronous motor as a rotational speed variable drive unit; a turret device as selecting arrangement; a discharge pipe; the nozzle; a controller that controls the rotational speed of the drive unit; a storage that stores control parameters and a target value of the discharge pressure corresponding to each nozzle; and a pressure sensor, wherein the controller controls the rotational speed of the drive unit by feeding back the discharge pressure using the control parameters corresponding to the selected nozzle to match the discharge pressure with the target value.

The present invention is directed toward an apparatus for continuous speed variation of an output member with respect to a primary input member. In particular, the present invention provides a device having an output that rotates at reduced speed and increased torque relative to its prime input through the low friction, rolling engagement of its members, or alternatively, at increased speed and reduced torque for overdrive applications. Furthermore, the speed of the output member may be varied continuously and infinitely between the apparatus's lowest and highest ratio via a secondary input member and its low friction, rolling engagement with the device's members.

The present disclosure provides for a drive assembly for a drug delivery device. The drive assembly comprises a housing (4); a piston rod having a longitudinal axis, a distal end and a proximal end and being axially movable in a distal direction relative to the housing and a mid-body (20) axially fixed inside of the housing (4) and coupled to the piston rod. The mid-body (20) comprises at least one metal ratchet arm (81 ) configured to prevent the piston rod from moving in the proximal direction. Moreover, a drug delivery device with such a drive assembly is presented.

The present invention relates to a miniature electronic lock, including the control mechanism in lock box and the lock bolt controlled by driving mechanism. There through equips a lock stopping hole for the pull rod head of the driving mechanism at the side of the lock bolt bracket. The middle of one surface of the driving mechanism pull rod and both ends of its near and vertical surface respectively equip racks. The racks at both ends of driving mechanism pull rod mesh on the gear wheel group fixed on the output axis of the control mechanism electromotor of the external electrical source. The gear wheel group includes two elliptic plywood to clip the main gear wheel of the gemel and the driven gear wheel respectively meshed with the main gear wheel from two ends gemel of the two elliptic plywood. When driven by the electromotor, the main gear wheel turns to the direction of driven gear wheel, which automatically meshs with the pull rod gear wheel through running outside force, to drive the pull rod move forward to the edental strip segment to achieve the separating and jointing state. Whereas when the main gear wheel turns from the direction of driven gear wheel, which automatically meshs with the pull rod gear wheel through running outside force, to drive the pull rod move backward to the edental strip segment to achieve the separating and jointing state.