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: A rotary electric machine is provided that includes a housing that forms an internal cavity that houses a rotor/stator assembly, in which the rotor is positioned on a main shaft of the machine, a lubricating fluid reservoir defining a hub portion defining an inner surface, and at least one roller bearing coupled to the main shaft and supported by the hub portion and by a bushing. The machine includes an oil ring fastened to the bushing and arranged between the main shaft of the machine and the inner surface of the hub portion, wherein the oil ring includes a wall having a substantially circular cross section and at least one elongate and inclined projection on an outer surface of the wall, each elongate and inclined projection having a lower edge and an upper edge and in which the rotation of the oil ring generates a pressure difference between the lower edge and the upper edge to force the lubricant towards the at least one roller bearing.

Abstract: The present invention refers to a heatsink (100) mounted between an electric motor (200) and a frequency inverter (300), comprising a plate (110) equipped with protrusions (120) that are cams of the plate (110) which project towards the deflector cover (210) of the motor (200).

Abstract: A rotary electric machine in which the casing containing the rotor/stator assembly comprises an intermediate closing cover that closes one end of the casing, a roller bearing immersed in oil and seated inside the oil tank of the machine, which has a casing with an outer wall that is spaced apart axially from the intermediate closing cover. The spacing between the outer wall and the intermediate closing cover forms a path for air to flow from a fan or a space to be filled with thermally insulating material.

Abstract: A rotor is provided with injected fixing bars having functional pins formed in a single piece and includes a bar and two or more 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 and a rotary electric machine can include the rotor.

Abstract: Disclosed herein are pressure attenuator devices for rotating electrical machines, The pressure attenuation device contains a screen with a plurality of openings, wherein the screen is positioned within the internal cavity and configured to segregate a flame front propagating from an ignition source formed by a combustion process originated in the cavity. Thus, with the use of the pressure attenuation device, an expressive reduction of pressure inside the cavity of the rotating electrical machine is obtained.

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: Engine housings feature an opening on the housing through which electric connection is enabled, as well as temporary maintenance. An ODP-type engine housing including a metal housing with a side opening, the opening compatible with the shape of the bottom of the junction box, enabling the junction box to partially close the opening of the housing. Consequently, when the junction box is attached, the housing is closed in order to facilitate the closing operation, as well as reducing manufacturing complexity, total mass of the housing and, consequently, manufacturing costs.

Abstract: Disclosed herein are pressure attenuator devices for rotating electrical machines, The pressure attenuation device contains a screen with a plurality of openings, wherein the screen is positioned within the internal cavity and configured to segregate a flame front propagating from an ignition source formed by a combustion process originated in the cavity. Thus, with the use of the pressure attenuation device, an expressive reduction of pressure inside the cavity of the rotating electrical machine is obtained.

Abstract: This invention claims a heat exchange system applied to the rotating electrical machine casing using the same, wherein said machines are equipped with a finned casing comprising a number of fins (2) equipped with a modified profile, each one interleaved with complementary fins (3), both profiles distributed over the external surface of the casing (1). Said fins (2) and (3) with predominantly continuous profile, supported in parallel along the casing height (1), respectively show projections (5a) and (5b) from the guideline (4), with the structures (5a) and (5b) with trapezoidal or rectangular section being interleaved to one another in the front region of the machine (1).

Abstract: This invention discloses a drainage system with high protection degree and low cost applicable to closed-type electrical machines and an electrical machine using thereof, comprising a casing equipped with: a drainage body (1) with a roughly cylindrical geometry, but capable of assuming other geometrical forms, manufactured from an impermeable material equipped with one or more holes (3) positioned over said body (1), forming one or more internal and cross-section channels (7) coupled to the drainage hole (8) of the casing (2) in communication with the internal part (A) of the casing (2) with the external part (B) of the casing (2); a plurality of cross-section filaments (4) are positioned in the hole or holes (3), crossing longitudinally the channel or channels (7) and said filaments (4) may be equipped with length superior to the drainage body length (1).

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.