摘要:
The patent entitled “Improvements to rotating magnetic field machines” relates to changes to the structures of the stator and of the inductor system of conventional rotating magnetic field machines. The first change consists of the fact that the stator poles are axial, so that there are no slots between the shoes thereof in the air gap, the windings are in the axial portion and are prefabricated coils, eliminating power loss, electromagnetic and mechanical vibration, electromagnetic emissions, and start-up torque, with a much lower copper content. The second change concerns the inductor system, which is made up of multiple cores, with a shared collector and yoke, which greatly reduces the amount of copper needed, with external dimensions similar to those of the conventional electromagnet that they replace in these machines or in any other sphere of use, for the same number of amperes per turn. It may be used in all rotating field machines.
摘要:
The invention relates to an electrical power motor-generator excited by magnetic transference, and which further comprises a stator (1) and a rotor (2) with an external core (3) stationary relative to the stator and rotor, said external core (3) comprising: an outer axial part, or axial armature (6) joined to the stator (1), an inner part that communicates through an air gap (4) with the rotor (2), a third part, disk (8), that joins the other two parts, where the rotor does not have any excitation coils, and hence no rings or collector brushes. The outer core (3) has an axial permanent magnet (12) and permanent magnets (10) on the outer axial part (6) thereof, and electromagnets (11) in the other two parts or on the disk (8). The rotor does not have brushes to create a magnetic field, which is created by the magnets and coils of the outer core (3), the magnetic flow transmitting the induction flow to the rotating rotor, through an air gap, thus dispensing with rings and collector brushes.
摘要:
In various embodiments, a trocar cannula may be configured for insertion into an eye to facilitate insertion and removal of instruments during surgery. The cannula may be affixed to an overcap (to inhibit rotation of the overcap relative to the cannula) that includes a seal. In some embodiments, the seal may be overmolded into the overcap or may include a wafer that is fixed between the cannula and the overcap to inhibit rotation relative to the cannula and the overcap. In some embodiments, the cannula and overcap may snap together through a tab/slot interface in a permanent fashion such that the cannula and overcap may not be separated without damaging the cannula or overcap. In some embodiments, a vent cannula may be receivable in the slit of the seal for allowing fluids to vent from the eye through the cannula (which may include an indentation to frictionally engage the vent).
摘要:
In various embodiments, a trocar cannula may be configured for insertion into an eye to facilitate insertion and removal of instruments during surgery. The cannula may be affixed to an overcap (to inhibit rotation of the overcap relative to the cannula) that includes a seal. In some embodiments, the seal may be overmolded into the overcap or may include a wafer that is fixed between the cannula and the overcap to inhibit rotation relative to the cannula and the overcap. In some embodiments, the cannula and overcap may snap together through a tab/slot interface in a permanent fashion such that the cannula and overcap may not be separated without damaging the cannula or overcap. In some embodiments, a vent cannula may be receivable in the slit of the seal for allowing fluids to vent from the eye through the cannula (which may include an indentation to frictionally engage the vent).
摘要:
Installation for measuring the wheel offset of railway vehicles. It makes it possible to obtain three circumferential profiles of the zone of contact of the running tread of said wheels as the railway vehicles travel at low speed over the installation. Once the data have been processed by computer equipment, the offset and the shape error are detected in real time. The installation is made up of equipment, at the foot of the track, formed by a running support with its guard rail, wheel-position sensors, a system for picking up radial displacements and an electronic control system. This system transmits the data to computer equipment where the process is carried out and the statistics generated and in which the results are displayed and stored.
摘要:
A tractor bogie with an integral gauge-change system which includes two frames which support sets of running gear and have sliding and centering blocks to support the bogie and unweight the wheels as they pass through a gauge changer; a toothed extendible axle arranged between each pair of sets of running gear; and a pinion/ring-gear transmission set fitted on the bogie frame to transmit the traction moment to the extendible axle. The invention is applicable to rolling stock adapted to run on tracks having two gauges.
摘要:
Railway axle assembly furnished with automatic change of track gauge and adaptable to conventional freight bogies. It comprises two independent rolling element assemblies (2), each composed of a wheel, a semiaxle, an outer bearing and an inner bearing, the inner bearing carrying a locking catch with two vertical shafts connected together by a bridge which contains the pieces which facilitate its unlocking and subsequent locking. It also includes an axle frame (1) on which are mounted the rolling elements (2) and their locking systems, a device (3) for connecting between the rolling elements, two trusses (4) for translating the brake shoes, a system of electrical continuity between wheels and a device (6) for detecting hot inner bearings. The invention is useful for converting current bogies with fixed axles into bogies with transversely displaceable axles.
摘要:
It is made up of a frame upon which travel trays that carry the fish to be seasoned with a given quantity of high salt content product, the system used to distribute this product consisting of a storage tank out of which falls the product upon a distribution hopper through a passage, being arranged inside the hopper a rotating roller with slots for the carriage of the seasoning product, which falls through the lower passage upon the fish arranged on the trays, being the profile of the slots similar to that of the fish that are located below on a tray in correspondence with the position of the slots, being the rotation speed of the driving motor used to actuate the roller determined by the weight of the trays containing the fish.
摘要:
An audio/video communication method displays the status of participants in a video chat session. The method employs multiple video chat capable (VCC) information handling systems (IHSs) that display video images of the participants. In this manner, each user may see the user's own video image as well as the video images of other users in the video chat session. When a user speaks, that user's VCC IHS detects audio, thus designating a speaker participant. This user's VCC IHS includes a gaze direction detector that determines at which particular user video image the user gazes, thus determining a target participant. The VCC IHS sends speaker participant ID information and target participant ID information to other VCC IHSs in the video chat session. In response, the other VCC IHSs display an indicator that designates one user video image as the speaker participant and another user video image as the target participant.
摘要:
An audio/video communication system displays the status of participants in a video chat session. The system includes multiple video chat capable (VCC) information handling systems (IHSs) that display video images of the participants. In this manner, each user may see the user's own video image as well as the video images of other users in the video chat session. When a user speaks, that user's VCC IHS detects audio, thus designating a speaker participant. This user's VCC IHS includes a gaze direction detector that determines at which particular user video image the user gazes, thus determining a target participant. The VCC IHS sends speaker participant ID information and target participant ID information to other VCC IHSs in the video chat session. In response, the other VCC IHSs display an indicator that designates one user video image as the speaker participant and another user video image as the target participant.