Browsing by Author "Hulínská, Linda"

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    Identifikace vlastností pneumatik
    (Technická Univerzita v Liberci, 2010-01-01) Hulínská, Linda; Malý, Miroslav
    This thesis is devoted to the contact patch. The contact patch of the tire and pavement is one of the most important elements biasing driveability, it is important to know the optimum size, shape and behavior under certain conditions. The first part deals with the general description of the manufacture of tires, their dimensions and basic distribution. In the second part follows the story of testing the tires, which can be divided into laboratory tests and tests on real roads. Greater part of the thesis describes the separate examination per contra, which were conducted in laboratory equipment of vehicles at the Technical university in Liberec, the apparatus for experimental research of new systems, directional control of the vehicle by-wire type, at no revolving wheel. For this test was assessed three different tires on a solid surface, in depending on the various sizes load and inflation pressure of tires. The last part is using the results of this examination per contra to checked formula of restoring moment proposed by Doc. Ing. Čestmír Šalamoun, CSc.
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    Identifikace vlastností pneumatik
    (2010-01-01) Hulínská, Linda
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    Úprava spalovacího motoru pro provoz na zemní plyn
    (Technická Univerzita v Liberci, 2013-01-01) Hulínská, Linda; Beroun, Stanislav
    This thesis deals with the conversion of Škoda 1.6 MPI engine to run on compressed natural gas (CNG), with a focus on design fuel system. The paper describes other necessary design adjustments for the actual operation of the natural gas engine, such as modifying the intake manifold, modifying the intake and exhaust valves and valve seats, selection pressure regulator, selection of appropriate injectors and the suchlike. Because lower performance of natural gas engines is one of the important issues, there is shown possible adjustment of piston to enlarge compression ratio of the engine and thus increase its performance. The next section of the paper performs a calculation performance and operating characteristics of the engine using program TLAK macro.xls made at the Department of Motor Vehicles and the Technical University of Liberec. The paper also gives a proposal for the calculation of the engine using program GT-Power.