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Relevant bibliographies by topics / 2-stroke engine / Dissertations / Theses

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Dissertations / Theses on the topic '2-stroke engine'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ma, Jun. "Numerical and experimental study of a boosted uniflow 2-stroke engine." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/9727.

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Engine downsizing is one of the most effective ways to reduce vehicle fuel consumption. Highly downsized (>50%) 4-stroke gasoline engines are constrained by knocking combustion, thermal and mechanical limits as well as high boost. Therefore a research work for a highly downsized uniflow 2-stroke engine has been proposed and carried out to unveil its potential. In this study, one-dimensional (1D) engine simulation and three-dimensional (3D) computational fluid dynamic analysis were used to predict the performance of a boosted uniflow 2-stroke DI gasoline engine. This was experimentally compleme

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2

Ojapah, Mohammed. "Experimental studies of performance and emissions in a 2/4-stroke engine." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/9188.

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Direct Injection (DI) gasoline engines are staging a come-back because of its potential for improved fuel economy through principally the engine down-sizing by boosting, stratified charge combustion and Controlled Auto Ignition (CAI) at part load operations. The problem with the Spark Ignition (SI) engine is its inherent low part-load efficiency. This arises due to the pumping loses that occur when the throttle closes or partially opens. One way of decreasing the pumping losses is to operate the engine lean or by adding residual gases. It is not possible to operate the engine unthrottled with

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3

Jin, Wei. "CFD modelling and validation of a large 2-stroke marine diesel engine." Thesis, University of Strathclyde, 2014. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25989.

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With the increased understanding of the physical processes of the large 2-stroke marine engine and the corresponding numerical models as turbulence, injection, evaporation and chemical combustion, it has become realisable to investigate the whole working processes using Computational Fluid Dynamics (CFD). However, CFD itself needs to be validated to produce reliable results. The focus of this thesis is on the CFD validation of the large 2-stroke marine diesel engine working processes. The turbulence models and the wall functions in the CFD solver were firstly tested using two basic 2D cases to

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4

Thein, Kévin Jean Lucien. "Evaluation of combustion concepts and scavenging configurations in a 2-Stroke compression-ignition engine for future automotive powerplants." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/164044.

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[ES] El trabajo de investigación presentado en esta tesis es el resultado de varios años dedicados al desarrollo, la implementación y la optimización de dos tecnologías combinadas: un concepto de combustión innovador y una arquitectura de motor de nuevo diseño. Esta investigacion se ha realizado en el marco de una colaboración con Renault SA, como continuación de las actividades realizadas en el proyecto europeo POWERFUL (POWERtrain for FUture Light-duty vehicles) por un lado,y en el marco del proyecto europeo REWARD (Real World Advanced technologies foR Diesel engines), devenido como continua

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5

Hlaváč, Štěpán. "Dvoudobý motor pro malý motocykl." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227891.

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This diploma thesis contains an engineering design of a two-stroke engine for small motorcycle. In the first part, the background research of these motors was made. Main dimensions of the engine and a calculation of the forces acting in crank mechanism were determined. Further check stress analysis of connection rod and calculation using a finite element method were performed. This diploma thesis also includes virtual 3D models of all designed parts and a drawing of cross section of the motor.

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6

Böhm, Milan. "Dvoudobý motor pro malou mechanizaci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227890.

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This diploma thesis includes progress constructional design of 2 - stroke engine for small mechanization, using modern tools of computer aided design. In the first part is mentioned short summary contemporary types small mechanization with 2 - stroke engines. Follows part devoted conceptual design with calculation of the main dimensions of engine cylinder. After assesment strength load of cranked mechanism, is effected stress analysis of connection rod, whose design and modeling is part of work, how by the help of analytical figures from appropriate literature so by final element method. Last

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7

Cagin, Stéphanie. "Méta-modèles réduits et séparés du comportement de balayage d'un moteur Diesel 2-temps pour l'exploration évolutionnaire des espaces de solutions." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0383/document.

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L’utilisation de techniques numériques lors de la conception d’un produit s’est largement généralisée au cours des 30 dernières années. Pourtant, la lenteur des calculs et la spécialisation des modèles numériques restent problématiques.Nous avons donc choisi de développer des modèles réduits du comportement de balayage sur un moteur Diesel 2-temps à lumières. Ces modèles sont analytiques, génériques, rapides d’utilisation et permettent d’éliminer les problématiques de traitement numérique. Ils sont aussi des instruments performants dans la recherche de solutions de conception. Une modélisation

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8

Chien, Yu-Hua, and 簡煜樺. "2-stroke uniflow downsized engine." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/97tc92.

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9

Liu, Chia-yang, and 劉加陽. "In-Cylinder Flow Characteristic of a Four-Stroke 2-Valve Internal Combustion Engine." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/a93ndt.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>95<br>Abstract The gasoline direct injection (GDI) has been engaged to the combustion system of an automotive engine since 1995 by the Mitsubishi Motor. It has been well recognized that the fuel consumption, exhaust emission, and engine performance can be drastically increased by application of the GDI technology. The GDI technology usually must be combined with the in-cylinder flow motion in order to regulate the mixture concentration distribution in the cylinder to a target pattern. By using this technology, the mixture preparation in the engine cylinder can be hom

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10

Tsai, Sheu Chin, and 許進財. "The Analysis and Measurement of the White Smoke Opacity at Single Cylinder 2-Stroke Engine." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/28409612573664555333.

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碩士<br>國立中興大學<br>機械工程學系<br>90<br>White smoke is the most obvious part of the exhaust emitted from Two-Stroke engines. The method for smoke testing currently used in Taiwan is the rapid acceleration test under no load. The current situation of white smoke emission was studied in this paper. It was found that the white smoke is gamma distributed. Four ways to treat the original smoke data were carried out and the results showed that the averaged peak values and the maximum integral values are the most suitable ways to define the white smoke level of motorcycles. The components of

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11

Subramaniam, Mark N. "Operating parameter optimization in a 2-stroke direct-injection engine with multidimensional modeling and a genetic algorithm search technique." 2002. http://catalog.hathitrust.org/api/volumes/oclc/50488217.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2002.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 117-120).

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12

Silva, Diogo Neto Moreira da. "Theoretical and Practical Analysis of the Exhaust System in a 2-Stroke Engine Performance Analysis of Different Fuels Performance Analysis of the 2019 and 2020 Rotax Max Challenge Setups." Master's thesis, 2020. https://hdl.handle.net/10216/127024.

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13

Silva, Diogo Neto Moreira da. "Theoretical and Practical Analysis of the Exhaust System in a 2-Stroke Engine Performance Analysis of Different Fuels Performance Analysis of the 2019 and 2020 Rotax Max Challenge Setups." Dissertação, 2020. https://hdl.handle.net/10216/127024.

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14

(9179864), John Foster. "Advanced Control Strategies for Diesel Engine Thermal Management and Class 8 Truck Platooning." Thesis, 2020.

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<div> <div> <div> <p>Commercial vehicles in the United States account for a significant fraction of greenhouse gas emissions and NOx emissions. The objectives of this work are reduction in commercial vehicle NOx emissions through enhanced aftertreatment thermal management via diesel engine variable valve actuation and the reduction of commercial vehicle fuel consumption/GHG emissions by enabling more effective class 8 truck platooning. </p> <p><br></p><p>First, a novel diesel engine aftertreatment thermal management strategy is proposed which utilizes a 2-stroke breathing variable value actuat

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15

Serra, Maria Francisca Sampaio. "Adaptação de um motor 125cc a 2 tempos a carburador para injeção e ignição eletrónicas." Master's thesis, 2021. http://hdl.handle.net/1822/76537.

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Dissertação de mestrado integrado em Engenharia Mecânica (área de especialização em Energias e Ambiente)<br>Este trabalho visa a adaptação de um motor a 2 tempos a gasolina de 1974 com carburador, para ignição e injeção eletrónicas, que tem como objetivo final a sua aplicação num Kart de competição. Embora tipicamente os motores a 2 tempos sejam controlados analogicamente, através de carburadores, por exemplo, a utilização de sistemas eletrónicos para este controlo tem vindo a aumentar ao longo dos anos, permitindo um maior controlo e melhor performance destes. A realização deste projeto base

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16

Hung, Yan-Ching, and 洪晏清. "The Study of Decreasing Exhaust White Smoke Via the Microcomputer Control Oil Supply for 2-Stroke Motorcycle Engines." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/63379226046588900340.

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碩士<br>國立中興大學<br>機械工程學系<br>92<br>The white smoke exhausted by two-stroke motorcycles, mainly is caused of no combustion or the incomplete oil compound combustion. Exhaust are related by the compound of engine oil and oil consumed. But speaking of two-stroke motorcycles user, when he/she purchases engine oil, generally can choose the price inexpensive engine oil, rather than choose a price expensive and low smoke engine oil, thus this thesis conducts the discussion research supplies of quantity in view of the engine oil. The study uses the microcomputer control mode supplies adequate

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17

Sautermeister, F. A., Martin Priest, P. M. Lee, and M. F. Fox. "Impact of sulphuric acid on cylinder lubrication for large 2-stroke marine diesel engines: Contact angle, interfacial tension and chemical interaction." Thesis, 2013. http://hdl.handle.net/10454/9724.

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other<br>no<br>The effect of sulphuric acid on the chemical and physical behaviour of the piston ring lubricant in a marine engine cylinder was investigated. To reveal the basic influence of H2SO4 on the lubricant film, the saturated hydrocarbon Squalane (C30H62) was chosen as a simple model oil. The interfacial tension between aqueous H2SO4 (0-98% w/w) and C30H62 was measured between -3 and 165 degrees C to understand droplet formation in the lubricant. Interfacial tension decreases with increasing acid concentration and is temperature dependent.<br>The wettability of engine parts with corros

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