Abstract: A method can include additively manufacturing a heat exchanger core having one or more fluid channels using a first additive manufacturing process and a first material. The method can also include additively manufacturing a support structure around the heat exchanger core using a second additive manufacturing process different from the first additive manufacturing process and a second material different from the first material after additively manufacturing the heat exchanger core.

Abstract: An impeller includes a housing having a fluid inlet cavity defining a rotational axis. A plurality of vane are inlets arranged along an inner surface of the fluid inlet cavity and a plurality of vane outlets are circumferentially arranged along a rim of the housing. Each of the vane outlets is fluidly connected to a corresponding vane inlet by a corresponding internal channel situated internal to the housing. Each of the channels maintains a triangular cross-section from the vane inlet to the vane outlet.

Abstract: A method of manufacturing a heat exchanger. The method includes additively manufacturing a first body with a first plurality of passages extending through the first body. Additively manufacturing a second body with a second plurality of passages extending through the second body. The method also includes, interlocking the first body with the second body such that the first plurality of passages is aligned with the second plurality of passages and fluidically connected with the second plurality of passages.

Abstract: An impeller includes a body with an interior channel extending through the body along a centerline axis of the impeller. A plurality of blades is connected to the body on a forward end of the impeller centerline axis. The plurality of blades surrounds the interior channel and is fluidly connected to an array of inlets. An array of pentagonal channels extends through the body and radially outward in a spiral pattern. Each pentagonal channel is fluidly connected to a corresponding vane inlet and a corresponding pentagonal-shaped outlet. Each channel maintains a pentagonal cross-section shape from the inlet to the outlet. Each downward-sloping face of the cross section is more than 35 degrees from a horizontal plane perpendicular to the centerline axis of the impeller.

Abstract: An impeller includes a body with an interior channel extending through the body along a centerline axis of the impeller. A plurality of blades is connected to the body on a forward end of the impeller centerline axis. The plurality of blades surrounds the interior channel and is fluidly connected to an array of inlets. An array of pentagonal channels extends through the body and radially outward in a spiral pattern. Each pentagonal channel is fluidly connected to a corresponding vane inlet and a corresponding pentagonal-shaped outlet. Each channel maintains a pentagonal cross-section shape from the inlet to the outlet. Each downward-sloping face of the cross section is more than 35 degrees from a horizontal plane perpendicular to the centerline axis of the impeller.

Abstract: An impeller includes a housing having a fluid inlet cavity defining a rotational axis. A plurality of vane are inlets arranged along an inner surface of the fluid inlet cavity and a plurality of vane outlets are circumferentially arranged along a rim of the housing. Each of the vane outlets is fluidly connected to a corresponding vane inlet by a corresponding internal channel situated internal to the housing. Each of the channels maintains a triangular cross-section from the vane inlet to the vane outlet.

Abstract: A method includes forming an electronics housing defining a first flow path spaced apart from the second flow path for heat exchange through the housing between the first and second flow paths. The electronics housing is of a first material. The method includes depositing a heat exchange fin on the electronics housing. The heat exchange fin is of a second material different from the first material, wherein the heat exchange fin is grown into the second flow path to facilitate heat exchange between the first flow path and the second flow path.

Abstract: A method can include additively manufacturing a heat exchanger core having one or more fluid channels using a first additive manufacturing process and a first material. The method can also include additively manufacturing a support structure around the heat exchanger core using a second additive manufacturing process different from the first additive manufacturing process and a second material different from the first material after additively manufacturing the heat exchanger core.