摘要:
A rotary mower has a cutting plate to which freely pivotal blades are attached by retaining pins. Instead of riveting the pins directly to a leaf spring which holds the pins in place, a keyhole slot is provided in each leaf spring and a narrow waist of the retaining pin fits into rectilinear portion of the keyhole slot and is held in position there by a holding plate riveted to the leaf spring. This allows case hardening of the entire retaining pin and prevents nonuniform stresses in the latter from causing breakage.
摘要:
A method is described for manufacturing a solenoid valve, in particular a fuel injector, the solenoid valve having a valve needle which is movably guided in the axial direction, a magnet core and an armature which is situated axially diametrically opposed to the magnet core, the armature being situated on the valve needle, the armature having a first base material and a first reinforcing element and the magnet core having a second base material and a second reinforcing element. The method has one method step. The first reinforcing element is applied to the first base material and/or the second reinforcing element is applied to the second base material during the method step with the aid of molten bath spraying or with the aid of cold gas spraying.
摘要:
In order to provide polymer compounds which are improved with respect to their properties in comparison with conventional PTFE, on the one hand, and compounds thereof with additional high performance polymers, on the other hand, it is suggested that a polymer compound comprise a proportion of a fully fluorinated, thermoplastic polymer material as well as a proportion of at least one additional high performance polymer different thereto and selected from the group consisting of polyether ketone, polyether ether ketone and polyether aryl ketone as well as copolymers and derivatives of these polymers and copolymers, wherein the compound displays a homogeneous distribution of the proportions of the polymers and the polymer material.
摘要:
A fuel distributor, which is used in particular for fuel injection systems of mixture-compressing spark ignition internal combustion engines, includes a tubular base body, a first holder and a second holder. The first holder is connected here to the tubular base body at a first fastening point of the tubular base body. The second holder is also connected to the tubular base body at a second fastening point of the tubular base body. The tubular base body has at least one bend at least between the first fastening point and the second fastening point. A base body having a meandering pattern may be implemented in this way, enabling adjustment of thermal changes in the length of a cylinder head on which the fuel distributor is mounted.
摘要:
Embodiments of the invention provide a memory device that may be accessed by a plurality of controllers or processor cores via respective ports of the memory device. Each controller may be coupled to a respective port of the memory device via a data bus. Each port of the memory device may be associated a predefined section of memory, thereby giving each controller access to a distinct section of memory without interference from other controllers. A common command/address bus may couple the plurality of controllers to the memory device. Each controller may assert an active signal on a memory access control bus to gain access to the command/address bus to initiate a memory access.
摘要:
The invention relates to a method for producing isophorone by catalyzed aldol condensation of acetone as an educt, reprocessing the reaction product, hydrolyzing the product stream, and separating into an organic and an aqueous fraction, obtaining isophorone from the organic fraction, distillatively reprocessing the aqueous fraction, and feeding the vapors from the head of the distillative reprocessing apparatus into the hydrolysis apparatus.
摘要:
A fuel injection valve for fuel injection systems of internal combustion engines. The valve includes an electromagnetic actuating element having a solenoid, a solid core, an outer magnetic circuit component, and a movable armature for actuating a valve closing element that works together with a valve seat surface provided on a valve seat element. The valve has extremely small outer dimensions. Due to an optimized dimensioning of the electromagnetic circuit, the outer diameter of the outer magnetic circuit component in the circumferential area of the solenoid DM
摘要:
A system and method is disclosed, including establishing of data connections between electronic devices. One embodiment provides a method for establishing a data connection between a first and a second electronic device, wherein establishing the data connection is authorized by executing at least one action with at least one physical tool.
摘要:
The invention provides modified oligonucleotides of formula (I), comprising at least one metal chelator which provides a powerful tool for study of the pharmacokinetics of siRNA and its correlation with in vivo activity. The chelated metals provide luminescent properties enable detection of the oligonucleotides through the use of time-resolved fluorescent quenching based on energy transfer from the metal ion to a nonfluorescent quencher which can be used as non-isotopic labels of oligonucleotides for diagnostics and evaluation of cellular uptake.