Abstract: An electromechanical power-split system and a method of operating thereof is provided, with a mechanical drive branch including an internal combustion engine (3), and with an electric drive branch including a first motor-generator block (59) including a first motor-generator (1) and a second motor-generator block (60) including a second motor-generator (2), the first motor-generator (1) is connectable to the internal combustion engine (3) and to the second motor-generator (2). The system includes a planetary gearset (4) with dual planet gears (46) and four input/output members for altering the flow ratio of the mechanical and electric drive branch. Each dual planet gear (46) is connected to the four input/output members, which are a first pair of input/output members formed by a first sun gear (41) and a ring gear (44), and a second pair of input/output members formed by a second sun gear (43) and a planet carrier (45).

Abstract: An electromechanical power-split system and a method of operating thereof is provided, with a mechanical drive branch including an internal combustion engine (3), and with an electric drive branch including a first motor-generator block (59) including a first motor-generator (1) and a second motor-generator block (60) including a second motor-generator (2), the first motor-generator (1) is connectable to the internal combustion engine (3) and to the second motor-generator (2). The system includes a planetary gearset (4) with dual planet gears (46) and four input/output members for altering the flow ratio of the mechanical and electric drive branch . Each dual planet gear (46) is connected to the four input/output members, which are a first pair of input/output members formed by a first sun gear (41) and a ring gear (44), and a second pair of input/output members formed by a second sun gear (143) and a planet carrier (45).

Abstract: A furnace roller for a roller hearth furnace has a hollow cylindrical ceramic roller body having an outer oxidic coating. The roller body has outer longitudinal fins and longitudinal grooves that run in linear longitudinal direction of the roller body. The configuration reduces the contact area between the roller body and the blanks to be transported. The furnace rollers are suitable for use in roller furnaces in hot forming lines for the press hardening of AlSi-coated steel blanks.

Abstract: A method for providing and collecting information via crowdsourcing by means of an Internet browser, includes providing a first memory location and at least two memory sublocations liked thereto on a server. The first memory location is writable with data by a first group of users via an Internet browser the first group of users loads a description of a searchable object into the first memory of the server. The memory sublocations can be written with data by a second group of users, to provide information that applies to the searchable object.

Abstract: A radiator includes a supporting part including a plurality of through openings formed therein and a plurality of cooling tubes, each of the cooling tubes received in at least one of the through openings formed in the supporting part, each of the cooling tubes having a generally U-shaped configuration, wherein a first one of the cooling tubes includes a first helical portion having a first pre-determined depth and a second one of the cooling tubes includes a second helical portion having a second pre-determined depth different from the first pre-determined depth.

Abstract: The invention concerns a control mechanism designed for manipulation with a stressing rod of a stressing unit which is used for fastening and prestressing of bolts, e.g. for flange joints of large pressure vessels, especially for flange joints of nuclear reactor vessels. The drive of the control mechanism of the stressing unit is a pseudo-planetary system of a gear mechanism which has the ability of both manual and mechanical control. A crown gear wheel is equipped with outer teeth and inner teeth. An inserted gear wheel of a driving pinion mates with the outer teeth. Only three planet gear wheels are inserted between the inner teeth of the crown gear wheel and the outer spur teeth of a central gear wheel. The central gear wheel is formed into the shape of a cylindrical shell which is bedded by its lower side, having a certain radial move possibility, on a wire bearing placed on a carrying body.