摘要:
A non-return valve for a hydraulic tensioning system which is used in traction mechanism drives of internal combustion engines and which manipulates a hydraulic fluid flow between a pressure chamber and a reservoir. The non-return valve has a valve body which is inserted in a housing and which is embodied as a ball and which, when the non-return valve is closed, is supported in a spring-loaded fashion against a valve seat of a through-flow cross-section. When the non-return valve is open, the valve body is assigned to a valve seat of the housing and the flow cross-section (19) of the valve seat ensures a fluid flow through the non-return valve.
摘要:
An automated accounting and reporting system supports flexible assignments of accounting objects to financial statements. At a reporting time, financial statement items may be generated from accounting objects by surveying the stored accounting objects and copying and aggregating key figures from the accounting object to the financial statement items. The financial statement items form the basis of the financial statements. The copying and aggregating may occur as specified in a plurality of rule sets. To change assignments between the accounting objects and financial statements, it is sufficient to provide a replacement rule set that specifies different copy and aggregation operations.
摘要:
A shaft-hub connection (10) between a belt pulley (14) and a shaft (16), in particular, between a belt pulley and the generator shaft of a belt-driven starter generator, wherein the belt pulley (14) has a decoupler shaft (12) and the generator shaft (16) has a coaxial thread (20) that is connected to the decoupler shaft (12) for transmitting torque. The connection between the decoupler shaft (12) and the thread (20) of the generator shaft (16) is secured against loosening. In addition, a belt-driven starter generator with such a shaft-hub connection is provided.
摘要:
A hydraulic belt tensioner for a unit drive or control drive of a motor vehicle. The belt tensioner has a cylinder housing in which a damper piston with a piston rod is arranged to be axially retracted against the force of a compression spring. A damping valve is integrated into the damper piston which, when interacting with a pressure compartment in the cylinder housing, are a component of a hydraulic damping system that is effective in the direction of retraction of the piston rod. The damping piston is produced from a shaped metal sheet piece that is guided inside the cylinder housing with very little play. The interior of the damping piston forms a receptacle for the damping valve configured as a throttle-check valve.
摘要:
A tensioning device for a traction mechanism drive, in particular for a belt drive. The tensioning device can be produced in an advantageous manner from production and design aspects and which offers advantages over known concepts with regard to the wear of the friction surface element in that it has a base part, having a pivot arm, having a torsion spring, which is designed as a coil spring, for imparting a pivoting torque which acts between the base part and the pivot arm and which forces the pivot arm in a tensioning direction, and having a damping device for generating a damping force which counteracts a pivoting movement of the pivot arm counter to the tensioning direction. The damping device includes a friction surface element which, as such, forms a friction surface which serves to impart a friction force, and which is seated on a mating friction surface, wherein the friction surface element is designed as a ring-shaped or ring-segment-shaped component and is forced outward, in a radial direction with respect to the pivot axis, against the mating friction surface by the torsion spring, and wherein the torsion spring has a coil end section which bears against an inner surface of the friction surface element. The torsion spring is designed, at least in the coil end section which bears against the inner surface of the friction surface element, with regard to the spring cross section such that said coil end section is in areal contact with the inner surface of the friction surface element.
摘要:
The form of a tooth profile for a rotating disc (10) is provided. The tooth gaps (22) formed between teeth of the rotating disc (10) are each arranged symmetrically about a tooth gap symmetry axis (30). The tooth gap symmetry axes (30) are designed such as not to pass through a circular area (14) in the region of a rotational axis (12) of the rotating disc (10).
摘要:
Wraparound drive, in particular control drive, for an internal combustion engine, having at least one driving gearwheel and at least one driven gearwheel and a tensioning or deflecting roller and having a wraparound means (toothed belt or chain) which connects said gearwheels and rollers, wherein the driving and/or driven gearwheel is designed according to the ID2 system such that, during rotation, it imparts a nonuniformity to the drive with the aim of damping the drive, wherein at least one additional auxiliary unit is also driven, characterized in that the gearwheel (6, 6′, 6″) of the auxiliary unit is connected to the driving shaft thereof by means of a non-rigid clutch.
摘要:
A balance processor is provided in an automated multi-protocol accounting system. Given accounting objects generated according to a first accounting system, the balance processor generates new accounting objects that represent underlying transactions according to requirements of a second accounting system. This permits the system to reuse the first accounting system as much as possible. A financial system generates accounting objects for both primary and secondary accounting systems. The accounting objects for the secondary accounting system are incomplete. The business transactions refer to a small portion of the accounting objects (typically, about 10%) where the book values differ among the different accounting systems. Additional key figures for the secondary accounting objects are copied from corresponding primary accounting objects based on copy rules. The present invention relieves the system operators from providing fully capable accounting analyzers for the secondary accounting system. It also relieves an automated accounting system from having to survey a database of financial transactions, which can contain several hundred thousand or even millions of transaction records, and generate complete accounting records according to the second accounting system.
摘要:
Calculations to be performed on a massive data set may be delegated to a plurality of local servers for parallel processing. Each local server advances through a subset of database objects to determine if the objects are relevant to the calculation. If so, the objects' data is used as an operand to the calculation to generate intermediate results at the local server. The intermediate results of the various local servers are transmitted to a central server, which generates final results and transmits them back to the local servers. The local servers write the final results into each object in its respective subset, where relevant. The method is efficient because each object in the database is opened at most twice. Opening and closing database objects often involve transfers from bulk storage and, therefore, are some of the most time-consuming operations that computer systems perform.
摘要:
Apparatus for the electroplating of thin plastic films (1), which are provided on one or both sides with a conductive coating and, if appropriate, may be provided with through-holes, comprises a conveying device (20 to 23) which moves the plastic film (1) horizontally in the region of the chamber (6) filled with electrolyte. The bonding devices (9 to 16), which bring the plastic film (1) to cathodic potential, are located outside the chamber (6) in the "dry". The conveying device includes at least one pair of squeezing rolls at both the inlet and the outlet of chamber (6), the circumferential speed of the pairs of squeezing rolls increasing in the direction of movement of the plastic film (1).