Transport and Communications - Volume 5.; Issue 1/2017

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/263

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    Measurement of Impact of Air Filter Cleanness on a Change of Engine Speed Characteristics
    (University of Zilina, 2017) Synák, František; Rievaj, Vladimír
    The paper is focused on the impact of clogged air filter on a change of speed characteristics of spark-ignition engine 1.4 MPI, 16V, 74 kW. The clogged air filter can cause deterioration in engine charging. Less air means the possibility of burning smaller amount of fuel, and thus less energy brought to the engine. This should cause a change in the size of engine torque and its power.
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    Temperature of the brakes and the Braking Force
    (University of Zilina, 2017) Rievaj, Vladimír; Mokričková, Lenka; Synák, František
    The kinetic energy of the braking vehicle is changed into heat and the resulting heat increases the temperature of each part of brakes. The changed temperature affects the coefficient of friction between the brake lining and brake drum of brake disc. Unless the brakes are actuated hydraulically there is the warning brake pads and brake fluid. Object of examination in this article is the impact of repetitive braking to change of these parameters and the impact of time to change the boiling point of the brake fluid.