Abstract: This invention relates to a method for producing components with internal architectures, and more particularly, this invention relates to a method for producing structures with microchannels via the use of diffusion bonding of stacked laminates. Specifically, the method involves weakly bonding a stack of laminates forming internal voids and channels with a first generally low uniaxial pressure and first temperature such that bonding at least between the asperites of opposing laminates occurs and pores are isolated in interfacial contact areas, followed by a second generally higher isostatic pressure and second temperature for final bonding. The method thereby allows fabrication of micro-channel devices such as heat exchangers, recuperators, heat-pumps, chemical separators, chemical reactors, fuel processing units, and combustors without limitation on the fin aspect ratio.

Abstract: An apparatus for processing seed cotton and removing fiber fractions from the seed cotton includes a plurality of freely rotatable first rollers that are arranged substantially parallel to one another and that are rotatably driven in a continuous path. A plurality of nip rolls are positioned in abutting relation to the first rollers on the side on the continuous path that is opposite to the side on which the seed cotton is deposited. The apparatus includes a reorienting arrangement for reorienting the position of the seed cotton on the first rollers to thereby permit all or substantially all of the fibers on the seed cotton to be removed. In one embodiment, the reorienting arrangement includes a rotating reorienting roller that contacts the seed cotton located on the first rollers. In another embodiment, the reorienting arrangement includes an apparatus that directs streams of air at the seed cotton on the first rollers.