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Ventilanordnung und Verfahren zum Kühlen eines Wärmetauschers eines Fahrzeugs [Offenlegungsschrift]
(2023)
Die Erfindung betrifft eine Ventilanordnung umfassend wenigstens ein durch Gas, insbesondere Luft, durchströmbares Ventilelement (1, 1') mit einer Öffnung, wobei der Öffnung ein Dichtelement zugeordnet ist, mit dem die Öffnung verschließbar und/oder öffenbar ist, wobei das Dichtelement durch einen Dichtflächenbereich eines Plattenelements ausgebildet ist, vorzugsweise eines in zumindest einem möglichen Betriebszustand planen Plattenelements ausgebildet ist, wobei das Dichtelement der Öffnung des wenigstens einen Ventilelements gegenüberliegt und der das Dichtelement bildende Dichtflächenbereich des Plattenelements mittels wenigstens eines Spiralarmes mit einem Randflächenbereich des Plattenelements einstückig und relativ zum Randflächenbereich beweglich verbunden ist und der wenigstens eine Spiralarm von wenigstens einer um den Dichtflächenbereich verlaufenden spiralförmigen und durch Gas durchströmbare Ausnehmung in dem Plattenelement zumindest bereichsweise umgeben ist. Die Erfindung betrifft auch ein Verfahren zum Kühlen eines Wärmetauschers in
einem Fahrzeug.
Cookie notices (or cookie banners) are a popular mechanism for websites to provide (European) Internet users a tool to choose which cookies the site may set. Banner implementations range from merely providing information that a site uses cookies over offering the choice to accepting or denying all cookies to allowing fine-grained control of cookie usage. Users frequently get annoyed by the banner’s pervasiveness as they interrupt “natural” browsing on the Web. As a remedy, different browser extensions have been developed to automate the interaction with cookie banners.
In this work, we perform a large-scale measurement study comparing the effectiveness of extensions for “cookie banner interaction.” We configured the extensions to express different privacy choices (e.g., accepting all cookies, accepting functional cookies, or rejecting all cookies) to understand their capabilities to execute a user’s preferences. The results show statistically significant differences in which cookies are set, how many of them are set, and which types are set—even for extensions that aim to implement the same cookie choice. Extensions for “cookie banner interaction” can effectively reduce the number of set cookies compared to no interaction with the banners. However, all extensions increase the tracking requests significantly except when rejecting all cookies.
Among all additive manufacturing processes, Directed Energy Deposition-Arc (DED-Arc) shows significantly shorter production times and is particularly suitable for large-volume components of simple to medium complexity. To exploit the full potential of this process, the microstructural, mechanical and corrosion behavior have to be studied. High stickout distances lead to a large offset, which leads to an instable electric arc and thus defects such as lack of fusion. Since corrosion preferentially occurs at such defects, the main objective of this work is to investigate the influence of the stickout distance on the corrosion
behavior and microstructure of stainless steel manufactured by DED-Arc.
Within the heterogenous structure of the manufactured samples lack of fusion defects were detected. The quantity of such defects was reduced by applying a shorter stickout distance. The corrosion behavior of the additively manufactured specimens was investigated by means of potentiodynamic polarization measurements. The semi-logarithmic current density potential curves showed a similar course and thus similar corrosion resistance like that of the conventionally forged sample. The polarization curve of the reference material shows numerous current peaks, both in the anodic and cathodic regions. This metastable behavior is induced by the presence of manganese sulfides. On the sample surface a local attack by pitting corrosion was identified.