Sökning: "poppet valve"

Hittade 5 uppsatser innehållade orden poppet valve.

  1. 1. Measurement of Thermal Insulation properties of TBC inside the Combustion chamber

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Materialvetenskap

    Författare :Siamak Kianzad; [2017]
    Nyckelord :Materials; TBC; Thermal barrier coating; heat flux; crack; combustion chamber; heavy duty diesel engine; single-cylinder; dummy valve; 8YSZ; YSZ; segmented cracks; radiative heat transfer; lanthanum gadolinium; EB-PVD; PVD; APS; CVD; horizontal cracks; vertical cracks; crack propagation; crack initiation;

    Sammanfattning : This master thesis project was performed in collaboration with Scania CV AB, Engine Materials group. The purpose with the project was to investigate different ceramic TBC (Thermal Barrier Coating) thermal insulation properties inside the combustion chamber. LÄS MER

  3. 2. Optimization of FreeValve´s fully variable valve control system for a four-cylinder engine

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Robin Hamberg; [2017]
    Nyckelord :;

    Sammanfattning : Automotive exhaust legislation is stricter than ever and manufacturers are spending increasing amounts of resources on reducing fuel consumption and emissions from their vehicles. What most do not try is to change one of the most fundamental concepts of the internal combustion engine. LÄS MER

  4. 3. Physical Modeling and Simulation Analysis of an Advanced Automotive Racing Shock Absorber using the 1D Simulation Tool AMESim

    Master-uppsats, Fluida och mekatroniska system; Tekniska högskolan

    Författare :Maryam Sadeghi Reineh; [2012]
    Nyckelord :Passive shock absorber; hydraulic; 1D modeling;

    Sammanfattning : Shock absorbers are crucial components of a vehicle’s chassis responsible for the trade-off between stability, handling, and passenger comfort. The aim of the thesis is to investigate the physical behavior of an advanced automotive racing shock absorber, known as TTR, developed by Öhlins Racing AB. LÄS MER

  5. 4. Modelling of an EGR System

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Fredrik Olin; [2007]
    Nyckelord :EGR; mean value engine model; and poppet valve.; Technology and Engineering;

    Sammanfattning : Due to new emission legislations in Europe and in the USA truck manufacturers are facing new difficulties when it comes to meeting these demands. This new legislation will demand more accurate models for simulation and malfunction diagnosis. LÄS MER

  7. 5. Mean value modelling of a poppet valve EGR-system

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Claes Ericson; [2004]
    Nyckelord :Technology; mean value engine modelling; EGR; poppet valve; TEKNIKVETENSKAP;

    Sammanfattning : Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). LÄS MER