Abstract: Systems and methods for blockchain services with a multicurrency blockchain platform.

Abstract: Systems and methods for payment processing using cryptocurrency assets.

Abstract: A method for managing sensitive data, including: receiving an encryption key from a third party recovery agent; at a user agent executing on a user device, encrypting the sensitive data with the encryption key; and storing the encrypted sensitive data at a third party storage provider system. The method can optionally include, at the user agent: requesting the encryption key from the third party recovery agent using a set of recovery agent authentication credentials; requesting the encrypted sensitive data from the third party storage provider system using a set of storage provider authentication credentials; and decrypting the encrypted sensitive data using the encryption key.

Abstract: A heat exchanger, providing indirect heat transfer between a first fluid and at least one second fluid, comprises a jacket enclosing a jacket space for accommodating the first fluid and a tube bundle arranged in the jacket space and having a plurality of tubes for accommodating the at least one second fluid. The tubes form multiple tube layers. A shroud arranged in the jacket space encloses an outermost tube layer of the tube bundle. Spacers extending along the longitudinal axis are arranged between the shroud and the outermost tube layer. An interspace is present between any two spacers adjacent in the circumferential direction of the shroud, and between the shroud and the uppermost tube layer. A flow obstruction is arranged in the respective interspace and is designed to prevent or suppress a flow of the first fluid in the respective interspace, at least over a part section thereof.

Abstract: Systems and methods for payment processing using cryptocurrency assets.

Abstract: Systems and methods for participation in blockchain administration.

Abstract: A method for managing sensitive data, including: receiving an encryption key from a third party recovery agent; at a user agent executing on a user device, encrypting the sensitive data with the encryption key; and storing the encrypted sensitive data at a third party storage provider system. The method can optionally include, at the user agent: requesting the encryption key from the third party recovery agent using a set of recovery agent authentication credentials; requesting the encrypted sensitive data from the third party storage provider system using a set of storage provider authentication credentials; and decrypting the encrypted sensitive data using the encryption key.

Abstract: A heat exchanger provides indirect heat transfer between a first fluid and at least one second fluid. The heat exchanger comprises a jacket which encloses a jacket space for accommodating the first fluid and a tube bundle arranged in the jacket space and having a plurality of tubes for accommodating the at least one second fluid, the tubes forming multiple tube layers, and a shroud arranged in the jacket space and encloses an outermost, tube layer of the tube bundle. Spacers extending along the longitudinal axis are arranged between the shroud and the outermost tube layer, an interspace is present between any two spacers adjacent in the circumferential direction of the shroud, and between the shroud and the uppermost tube layer. A flow obstruction is arranged in the respective interspace and is designed to prevent or suppress a flow of the first fluid in the respective interspace, at least over a part section thereof.

Abstract: A needle bearing (1) with at least one bearing shell (3) for needle-shaped roller bodies (5) and with a cage (4) for guiding the roller bodies (5), wherein a retaining tab (10) formed on the cage (4) interacts axially with the bearing shell (3) for securing the cage (4). Furthermore, a roller bearing assembly with a needle bearing of this type is provided, additionally with a thrust washer (15) for securing the cage (4) that interacts axially with the cage (4), supplementing the interaction of the retaining tab (10) with the bearing shell (3).

Abstract: A bearing arrangement is provided having a shaft (1) with a bearing journal (2, 3), and a needle bearing (9) which is arranged thereon and has a cage (16) and needle rollers (11) accommodated in the latter. The bearing journal is provided with a hardened and precision-machined inner raceway (10) for the needle rollers and steps back radially in relation to axial shoulders (12, 13) of adjacent shaft sections (4, 5, 6, 7), and the axial shoulders serve as run-on surfaces for the axial end sides (14, 15) of the cage fitted between the axial shoulders. In this case, relief grooves (17, 18) are provided, with the relief grooves extending on both sides of the inner raceway and each being dimensioned in such a manner that, over the entire circumferential region of the axial shoulders, the axial distance (D) thereof from each other is significantly larger than the inner raceway width (B1) existing therebetween.

Abstract: A method of making a compensation shaft (1) out of a drop-forged shaft blank (11) is provided. The compensation shaft includes a shaft section (5) with a base body (16) and a rib (15) with a height H starting from the base body. The method includes separating the forging ridges (14) formed in the die (9, 10) by trimming the forged shaft blank into a shape close to the final contour of the base body at trimming points, with the distance S2 between these trimming points being substantially smaller than the distance S1 between the forging ridges prior to separation.

Abstract: A bearing arrangement is provided having a shaft (1) with a bearing journal (2, 3), and a needle bearing (9) which is arranged thereon and has a cage (16) and needle rollers (11) accommodated in the latter. The bearing journal is provided with a hardened and precision-machined inner raceway (10) for the needle rollers and steps back radially in relation to axial shoulders (12, 13) of adjacent shaft sections (4, 5, 6, 7), and the axial shoulders serve as run-on surfaces for the axial end sides (14, 15) of the cage fitted between the axial shoulders.

Abstract: A method of making a compensation shaft (1) out of a drop-forged shaft blank (11) is provided. The compensation shaft includes a shaft section (5) with a base body (16) and a rib (15) with a height H starting from the base body. The method includes separating the forging ridges (14) formed in the die (9, 10) by trimming the forged shaft blank into a shape close to the final contour of the base body at trimming points, with the distance S2 between these trimming points being substantially smaller than the distance S1 between the forging ridges prior to separation.