Abstract: A rotor is provided with injected fixing bars having functional pins formed in a single piece and including a bar and two functional pins. The functional pins include one or more fixing regions for tying of one or more rotor packages of plates of the rotor. A process is for manufacturing the rotor A rotary electric machine can include the rotor.

Abstract: The present invention refers to a liftable brush holder system (9) able to operate as fixed, comprising a motor (1) that drives a speed reducer (2) that drives a shaft (3) that moves a disc with eccentric slot (4), wherein the disk with eccentric slot (4) closes the short-circuit bushing (6) and independently moves the sides (9r, 9l) of the brush holder (9). The present invention further refers to a rotating electric machine equipped with a system according to the invention.

Abstract: The present invention relates to a rotor blade for a wind turbine, wherein the blade comprises a high lift root profile with flat-back trailing edge with a suction and a pressure side, a relative thickness in between 45% and 75%, preferably in between 48% and 70% of the chord length and a trailing edge thickness between 30% and 75%, preferably between 35% and 60% of the airfoil thickness, wherein the chord position of the maximum thickness, measured from a leading edge towards the trailing edge, is between 35% and 45%, preferably between 36% and 42% of the chord length. The present invention also relates to a corresponding wind turbine.

Abstract: An explosion-proof electrical machine and, more specifically, to an electrical machine comprising an internal pressure reduction device. The internal pressure reduction device comprises a base for installation in a region of the casing below the connection box, a base being configured to receive a plurality of volume filling pieces; wherein the base comprises a bottom part and a part of wall which is extended by at least a part of the periphery of the bottom part. The base may further comprise at least one engaging means for each piece of the plurality of volume filling pieces.

Abstract: The present invention relates to a start switch or contact point (10) for rotating electric machines with single-phase power supply, having a base (100) bearing actuating arms (200) carrying conductive blades (300). The actuating arms (200) are independent and one-piece, each one carrying at least one conductive blade (300) and being pressed against a stop (220) by a resilient element (400), also including a sliding surface (230) with a friction-reduction region (235). The present invention also relates to an electric machine provided with a corresponding start switch or contact point.

Abstract: The present invention relates to a hardwearing base (100) for rotating electric machines that has a cradle (110), bearings (200), covers (300), brackets (400) and fastening elements (500), the cradle (110) having a base (111) and a pair of flanges (120) arranged in a plane perpendicular to the base. Each of the flanges (120) of the hardwearing base (100) has a semicircular opening (122) that has a central protrusion (130) formed by a tooth that is flanked by oblong cutouts (134) and has a concave upper portion (131), inclined sides (132), inclined transition sides (133) between the upper concave portion (131) and the inclined sides (132), and two upper enlargements (140), each having an outward protrusion (141) and an inward protrusion (142) adjacent to an oblong cutout (143), in which the apex of the inward protrusion (142) extends beyond the curve of the semicircular opening (122) by a distance equal to the depth of the smaller side of the oblong cutout (143).

Abstract: A bearing fastening ring used in rotating electrical machines that is able to receive bearings of several diameters when the ring is positioned over a shaft. The bearing fastening ring includes a semi-circular element, scaling profiles of different diameters to accommodate different sizes of bearing, grounding ring apertures in the semi-circular element, cover assemblies extending out from the outer diameter of the semi-circular element, and bracket assemblies extending out from the outer diameter of the semi-circular element.

Abstract: The present invention relates to a system for grounding bearings of rotary electric machines (200), especially rotary electric machines (200) controlled by frequency converters, the system comprising an outer ring (1), a contact ring (2), a support ring (3), elements (4) for fastening the rings, optional closure elements (5), elements (6) for fastening the assembly, elements (7) for adjusting the brush, a brush (8) made of a conductive material and a compressive fastening element (9), wherein the outer ring (1) is provided with at least two, preferably four to six housing holes (8A) for housing one or more grounding brushes (8). The present invention further relates to an electric machine provided with a system according to the invention.

Abstract: A system for fixing the inner air deflector on a deflective cover for a rotating electrical machine, wherein this deflector is fixed onto the deflective cover using a fixing element and a nut placed through elongated holes on flaps of the inner deflector and through elongated holes on the deflective cover, so that the tightening of the fixing set is performed from an outer part of the housing of the machine, enabling adjustment of a gap between an outer edge of blades of a fan and an inner surface of the inner air deflector, in order to minimize the effects of formation of counter-flowing air currents near the gap.

Abstract: A cap for a rotating electric machine, the cap comprising at least a rolling bearing receiving portion (2) for receiving a rolling bearing (R) having an outer race (E), the rolling bearing receiving portion (2) comprising a radially resilient central portion (3) configured to exert pressure on the outer race (E) of the rolling bearing.

Abstract: A mold assembly for rotating electrical machines housings, the mold having part of the cooling duct geometry on its side portion and another portion on the center mold, in order to eliminate the requirement of casting plugs. A rotating electrical machine housing manufactured from the mold assembly.

Abstract: A heat exchange system for casings of rotary electric machines is described herein. The heat exchange system applied to the rotating electrical machine casing and the machine is equipped with a finned casing comprising a number of fins equipped with a modified profile, each one interleaved with complementary fins, both profiles distributed over the external surface of the casing. The fins have a predominantly continuous profile, supported in parallel along the casing height, and respectively show projections from a guideline, with structures with trapezoidal or rectangular section being interleaved to one another in a front region of the machine.

Abstract: The segmented viscoelastic bushing for rating electrical machines bearing is disclosed herein, and is designed to absorb radial and axial expansion variations during the rotating electrical machine operation. The bushing is configured to be housed between the bearing and the wheel hub in order to absorb impacts, while allowing for a controlled level of axial and radial movement of the bearing resulting from the existing clearance between the bearing and the outer ring of the bearing.

Abstract: The present patent of the invention relates to a casting for electrical rotating machines, preferably for open drip-proof machines type, granted by a greatest number of contact elements between the casting and the stator, these elements being fins with different lengths, arranged in its interior, so that to increase the heat exchange efficiency between the assembly stator/casting and the cooling fluid, maintaining an uniform temperature distribution along the length of the stator and coils.

Abstract: The present invention discloses a device designed with the purpose of absorbing radial and axial expansion variations during the rotating electrical machine operation. The bushing is fitted between the bearing and the wheel hub in order to absorb impacts, but allowing in a controlled level the axial and radial movement of the bearing resulting from the existing clearance between the bearing and the outer ring of the bearing.

Abstract: The present invention discloses an auto centering fitting system for the assembly of rotating electrical machines, comprising a couple of caps (1a) and (1b), wherein said cap (1b) shows a cylindrical geometry, optionally interrupted, comprising a strengthened peripheral region (3b) from which a male-type structure (6) complementary to the channel (4) of the cap (1a) extends longitudinally; and said cap (1a) shows a strengthened region (3a), from which a pair of symmetrical tabs (3c) project distally, which will define a fitting channel (4), forming a junction (5) through the application of axial pressure on both caps in opposite directions to each other, allowing for the fitting of (6) to (4).