Sökning: "Cylinder Liner Surface"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Cylinder Liner Surface.

  1. 1. Ytors beskaffenhets påverkan vid tätningsförband

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Hampus Lindholm Bergman; Raneem Kamly; [2022]
    Nyckelord :Ytor; Tätningsförband; Tätnignar; Scania; Packningar; O-ring; beskaffenhet; Ytparametrar; Läckage;

    Sammanfattning : Detta examensarbete utfördes för Scania CV AB. Huvudfokus för arbetet var att analysera sambandet mellan tätningsytors beskaffenhet och uppkomst av mikroläckage i tätningsförband. LÄS MER

  3. 2. Development of a 3D Ring Dynamics Model For a Heavy-Duty Piston Ring-Pack

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Parthasri Akurati; Karan Kumar; [2021]
    Nyckelord :3D ring model; Flank wear; Oil consumption; Piston ring dynamics;

    Sammanfattning : With the increasing restrictions in emission legislations, the automotive industry aims to improve the efficiency of the lubricating system and to decrease fuel consumption. In the power cylinder unit (PCU), the piston rings are the major contributor to these consumptions. LÄS MER

  4. 3. Experimental Study of Metallic Surfaces Exposed to Cavitation

    Master-uppsats, KTH/Materialvetenskap

    Författare :Marcio Freitas De Abreu; [2018]
    Nyckelord :cavitation; cylinder liner; lamellar gray cast iron; erosion pitting; graphite class; cavitation;

    Sammanfattning : Cylinder liners in heavy-duty truck engines are subjected to intense vibrations and may sustain damage from the cavitation of bubbles in the coolant liquid, with some risks of leakage and engine breakdown. An ultrasonic oscillating probe was used to simulate the pitting rates and behavior of samples extracted from cylinder liners, which are made of grey cast iron, with differences in surface roughness, glycol and inhibitor content in coolant, coolant temperature and graphite flake class; bainitic microstructures were also tested. LÄS MER

  5. 4. Tribological evaluation of the contact between upper compression ring and cylinder liner with different surface coatings

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Författare :Pär Wassborg; [2016]
    Nyckelord :piston ring; cylinder liner; wear; friction; grey cast iron; titanium oxide; chromium oxide;

    Sammanfattning : The constant pursuit in the automotive industry to increase the engines performance, new solutions are always developed and tested to reduce the friction and increase the efficiency in the engine. One component that contributes to friction losses is the piston ring pack where the top compression stands for up to 40 %. LÄS MER

  7. 5. The impact of honing process parameters on the surface quality of cylinder liners

    Master-uppsats, KTH/Industriell produktion

    Författare :Sofia Edberg; Erik Landqvist; [2015]
    Nyckelord :;

    Sammanfattning : During recent years, legislation regarding emissions and fuel consumption levels for the automotive industry has become increasingly comprehensive. In order for automotive manufacturers to reach the demands, engine friction needs to be reduced. LÄS MER