摘要:
The invention relates to a process for manufacturing a steel Yankee cylinder (1), where the Yankee cylinder (1) is welded together from individual pre- or finish-machined cylinder sections (8, 9, 10).The invention also relates to a Yankee cylinder (1) that is manufactured using the manufacturing process according to the invention.
摘要:
The present invention relates to the field of electrochemical cells and fuel cells, and more specifically to polymer-electrolyte-membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). It is directed to catalyst-coated ionomer membranes (“CCMs”) and membrane-electrode-assemblies (“MEAs”) that contain one or more protective film layers for protection, sealing and better handling purposes. The one or more protective film layers are attached to the surface of said catalyst-coated membranes in such a way that they overlap with a region of the passive non-coated ionomer area, and with a region of the active area that is coated with a catalyst layer. Furthermore, the present invention discloses a process for manufacture of CCMs and MEAs that contain protective film layers. The materials may be used as components for the manufacture of low temperature fuel cell stacks.
摘要:
A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a respective countershaft which have an output gear that couple gears of an output shaft such that forward and reverse gears can be shifted. Three dual gear planes each comprise two idler gears, each supported by a respective countershaft, and one fixed gear. In each dual gear plane, at least one idler gear wheel can be used for implementing at least two gears so that at least one winding-path gear can be shifted via a shifting device.
摘要:
A tie anchor for strip-type tension members includes an anchor body disposed on at least one side of the tension member. The anchor body includes a plurality of clamping blocks arranged at a distance from each other in a longitudinal direction of the tension member. The clamping blocks are connected to tension member by adhesive and/or friction (clamping friction). An end-most (final) one of the clamping blocks is attached to a fixed abutment. Adjacent clamping blocks are interconnected by expansion members whose spring stiffness becomes progressively stronger toward the end-most clamping block.
摘要:
A clutch release arrangement (1) for a clutch release (pressure plate) (6) used in vehicles is provided. The clutch release arrangement (1) includes a control lever (2), which forms one unit together with a housing (3) and also a clutch release bearing (4). The housing (3) is supported directly on the control lever (2) by contact surfaces (8a, 8b or 18a, 18b) of different lengths, which allow height compensation “s” at assembly.
摘要:
The present invention relates to the field of electrochemical cells and fuel cells, and more specifically to polymer-electrolyte-membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). It is directed to catalyst-coated ionomer membranes (“CCMs”) and membrane-electrode-assemblies (“MEAs”) that contain one or more protective film layers for protection, sealing and better handling purposes. The one or more protective film layers are attached to the surface of said catalyst-coated membranes in such a way that they overlap with a region of the passive non-coated ionomer area, and with a region of the active area that is coated with a catalyst layer. Furthermore, the present invention discloses a process for manufacture of CCMs and MEAs that contain protective film layers. The materials may be used as components for the manufacture of low temperature fuel cell stacks.
摘要:
A pulverulent and mineral oil-free composition which is present as binary system and contains as main constituents a) from 5 to 40% by weight of at least one fatty acid derivative and/or fatty alcohol derivative, b) from 0.5 to 10% by weight of at least one silicone oil and c) from 20 to 85% by weight of at least one support material, with the components a) and h) having been applied to the support material c), is proposed. Suitable components a) are, in particular, fatty alcohol alkoxylates comprising ethylene oxide units and propylene oxide units. Polydimethylsiloxanes are particularly suitable representatives of silicone oils b). The support material c) is selected from the group consisting of chalk, dolomite, shell limestone and silica. The composition has a bimodal particle size distribution in the range from 10 to 120 μm. Such compositions are used, in particular, as antifoams for dry mortar applications.
摘要:
A dual clutch transmission with two clutches, two relative coaxial input shafts, two relative coaxial countershafts, two drive constants (gear trains, as well as one concentric transmission output shaft to the two drive shafts. Such a transmission structure is to be further embodied in such a way that through minor variations of gear mechanisms based on a construction module concept, seven-speed and eight-speed dual clutch transmissions with different direct gears, a different number of overdrive gears as well as different overall gear ratios can be manufactured. In accordance with a generic dual clutch transmission, the two countershafts by way of a coupling device can be rotationally connected with each other, and that on the countershaft embodied as hollow shaft, an idler gear is rotationally mounted, which meshes with a fixed gear on the transmission output shaft.
摘要:
A concrete tensioning band is disposed on a surface of unhardened concrete and tensioned by being attached to a clamp disposed on the base, and then displacing the clamp by a drive mechanism disposed on the clamp. Such displacement serves to tension the band. Spacers are positioned between the clamp and the base to hold the clamp in the displaced state while the drive mechanism is removed and an anchor device is fixed to the band to anchor the band to the base. Then, the clamp is removed.
摘要:
The invention relates to a process for manufacturing a steel Yankee cylinder (1), where the Yankee cylinder (1) is welded together from individual pre- or finish-machined cylinder sections (8, 9, 10). In this case, the individual cylinder sections (8, 9, 10) are not welded together at the manufacturing location of the cylinder sections (8, 9, 10), but at an assembly location away from the manufacturing location, preferably on the works premises of the customer.