Scarcella
Giuseppe Scarcella, Catania IT
Patent application number | Description | Published |
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20160126873 | SENSORLESS ROTOR ANGLE DETECTION CIRCUIT AND METHOD FOR A PERMANENT MAGNET SYNCHRONOUS MACHINE - An estimate of the initial position of a rotor is made by monitoring sensed motor current signals which are amplitude and phase modulated with the rotor flux position in response to a high frequency voltage signal injection. The motor current signals are envelope detected to determine zero crossing points. Samples are taken of the motor current signals at positive and negative offsets from the zero crossing point, with the samples processed to identify a direction of the rotor flux axis. Further samples of at least one motor current signal are taken with respect to a certain phase reference, and the samples compared to resolve a polarity of the rotor flux axis which is indicative of the angular position of the rotor. | 05-05-2016 |
Jeffrey A. Scarcella, Tariffville, CT US
Patent application number | Description | Published |
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20140151001 | HEAT EXCHANGER WITH VARIABLE THICKNESS COATING - A heat exchanger includes a heat exchanger wall that bounds a passage. A coating lines the heat exchanger wall. The coating has a thickness that varies according to location on the heat exchanger wall. | 06-05-2014 |
Paolo Scarcella, Rivalta Di Torino IT
Patent application number | Description | Published |
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20160040459 | HANDLE FOR A DOOR OR WINDOW WITH TWO OR THREE POINT LATCH - A latching system for a door or window that includes a first snap stop member adapted to be arranged at a side edge of a leaf of the door or window, the first stop member includes a pawl rotatable about an axis perpendicular to the plane defined by the leaf; a second snap stop member adapted to be arranged at an upper edge of the leaf, the second stop member comprising a pivot translatable in a vertical direction; a handle rotatable so as to control the releasing movement of the first and second stop members, the handle being rotatable about a horizontal axis parallel to the plane defined by the leaf; and a first and a second transmission mechanism for converting a rotation of the handle into a rotation of the pawl and a translation of the pivot, respectively. | 02-11-2016 |