Abstract: A turbomachine inner housing for a radial turbomachine, wherein the turbomachine inner housing includes a partial joint along a longitudinal axis, in particular a rotor longitudinal axis, such that the turbomachine inner housing can be divided into a lower part and an upper part, wherein the turbomachine inner housing is designed for a radial turbomachine with at least two stages, wherein the turbomachine inner housing has a return stage in each case between two stages, wherein the lower part and/or the upper part is designed in one piece so as to span at least two stages at least in sections. In order to improve a turbomachine inner housing of this kind, the lower part and/or the upper part is designed in one piece so as span at least two stages at least in sections.

Abstract: A turbomachine inner housing for a radial turbomachine, wherein the turbomachine inner housing includes a partial joint along a longitudinal axis, in particular a rotor longitudinal axis, such that the turbomachine inner housing can be divided into a lower part and an upper part, wherein the turbomachine inner housing is designed for a radial turbomachine with at least two stages, wherein the turbomachine inner housing has a return stage in each case between two stages, wherein the lower part and/or the upper part is designed in one piece so as to span at least two stages at least in sections. In order to improve a turbomachine inner housing of this kind, the lower part and/or the upper part is designed in one piece so as span at least two stages at least in sections.

Abstract: A fluid-cooled heatsink and backplate, for example, for an electronic power module in an automotive application are provided, the backplate formed with a set of grooves, and the heatsink formed with a set of ribs corresponding to the set of grooves and extending into and affixed to the set of grooves. Glue or adhesive material, such as silicone or silicone o-rings, may be provided between the set of ribs and the set of grooves to secure the backplate to the heatsink. A second set of ribs extending from the heatsink may also be included, such that space is allowed between each rib of the second set of ribs and the backplate. An epoxy-adhesive material may be disposed between the second set of ribs and the backplate, or the second set of ribs may be welded or partially welded. Also provided are the backplate and a method of manufacture.