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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Technická a ekonomická komparace automobilu s elektrickým a spalovacím motorem

MATĚJKA, Jan January 2018 (has links)
This master thesis is focused on the comparison of electric drive and drive with an internal combustion engine. The literary overview shows the history and beginnings of the first attempts to create a vehicle with an electric energy. This all goes back to the half of 19th century. In this thesis are also included types of electric engines which are used in drives. Great attention is focused on the several types of accumulators and their charging. The last chapter in the theoretical part is dedicated to the ecological aspect of commission and the production of electric energy which is used to the drive of the electric car. The second, practical, part deals with two levels. Concretely with the technical part where are compared the on-road performance, comfort, noise and functionality of the BMW i3 and Renault Clio. Another economical part which is focused mainly on the operating costs and the affordability of vehicles which were tested.
12

Výsuvná zadní náprava malého městského automobilu / The rear axle of a small urban car

Fišer, Petr Unknown Date (has links)
This Master’s thesis is dedicated to innovative structural design of the supporting frame rear axle of a small urban utility vehicle. The frame allows you to change the wheel base by sliding rear axle so the car can be used in its short or long version. The main part begins with description of the design solutions and continues with selection of a solution and description of its main parts. The work is finished by description of the current state of production and a list of expected expenses.
13

Patente in der Motorentwicklung

Schober, Giulio 21 September 2021 (has links)
Dieser Beitrag gibt einen kurzen Überblick über das Patent als technisches Schutzrecht und seine Abgrenzung zu anderen gewerblichen Schutzrechten wie Gebrauchsmuster, Marke und Design. Weiterhin werden einige Anmelde- und Nutzungsstrategien für Patente skizziert. Der grundlegende Aufbau einer Patentanmeldung wird schließlich anhand des im Jahr 1889 von AEG angemeldeten Patents „Anker für Wechselstrommotoren“ erläutert, welches den Drehstrom-Asynchronmotor mit Kurzschlussläufer zum Gegenstand hat. / We provide a brief overview of patents as property rights for technical inventions as well as their distinction from other industrial property rights such as utility models, trademarks and designs. Furthermore, we outline some application and utilization strategies for patents. Finally, we explain the basic structure of a patent application by referring to the patent “Anker für Wechselstrommotoren” (armature for alternating current motors) filed by AEG in 1889 for protecting the three-phase asynchronous motor with squirrel cage rotor.
14

Výpočet jednofázového asynchronního motoru / Single-Phase Induction Motor Calculation

Ševčík, Pavel January 2010 (has links)
This master's thesis considers by single-phase asynchronous motor. The first part discuss about construction, principle of operation and basic parameters of this motor type. It also discussed the emergence of torque and torque characteristics of the different types of engines. The second part explains the basic ways of obtaining grip moment including outline the principles of functions particulars constructions types, which is produce in practice. In the third part is minutely analyse single-phase asynchronous motor with auxiliary phase and permanently conect capacitor, including method of assign size of a capacitor. Fourth part section provides the principles of the procedure for calculating basic parameters of the single asynchronous motor with auxiliary phase. At the last part is accomplished a calculation of single-phase asynchronous motor with permanently conect capacitor at auxiliary phase including comparation with already manufacturing motor.
15

Technologie opracování středicích nákružků a patek elektromotoru v systému řízení výroby / Machining technology of electromotor spigots and base in the production control system

Tollrian, Zdeněk January 2012 (has links)
The current processing of electric motor feet and centering collars has been focusing on two main production methods. The production transfer from Germany allowed the introduction of a new enhanced technology. Cutting conditions values, cutting process operating forces , tool life criteria for a maximum productivity and a minimum costs were calculated. Control measurements of the required collar and stator pack concentricity provided the necessary feedback.
16

Pohon motokáry elektromotorem / Electric powered go-cart

Štol, Michal January 2012 (has links)
This thesis deals with rebuilding of combustion engine powered go-kart for rent to electric powered go-kart. Main goal of work is choose fitting electric engine and electric accessories for reliable working of electric go-kart, put the whole electric drive to rear construction of go-kart and check mechanical part of electric drive.
17

Elektrický pohon motocyklu / Electric drive for motorcycles

Černošek, Martin January 2013 (has links)
The diploma thesis is focused on rebuilding of the combustion engine powered motorcycle to the electromotor powered motorcycle. In the thesis is chosen the suitable electromotor, next is designed the accumulator system, then is created the construction design of location electric system in the motorcycle frame and at the end is made the strength analysis of the mechanical parts. For the construction design is created 3D model in SolidWorks. The diploma thesis is also focused on comparison the motorcycle powered by combustion engine and the motorcycle powered by electromotor in the Supermoto race.
18

Návrh konstrukce elektrické koloběžky / Suggestion of electric scooter

Lasák, Štěpán January 2014 (has links)
The goal of this master’s thesis is a construction design of an electric kick bike with the motor builded in the axle of the rear wheel. The thesis consists of theoretical part, which is describing electric kick bikes used today and the possibility of motorization. The next part is a construction design with necessary calculations and formulas.
19

Výsuvná zadní náprava malého městského automobilu / The rear axle of a small urban car

Fišer, Petr January 2014 (has links)
This Master’s thesis is dedicated to innovative structural design of the supporting frame rear axle of a small urban utility vehicle. The frame allows you to change the wheel base by sliding rear axle so the car can be used in its short or long version. The main part begins with description of the design solutions and continues with selection of a solution and description of its main parts. The work is finished by description of the production the rear axle.
20

Návrh letounu pro zástavbu hybridní pohonné jednotky / Aircraft design for the installation of a hybrid powerplant

Kapoun, Tomáš January 2015 (has links)
The master‘s thesis "Aircraft design for the installation of a hybrid powerplant" is focused on the design of the airplane suitable for hybrid powerplant. At the same time it is also deal with the most suitable location of the components necessary for this powerplant. These components are: a combustion engine, electric motor, gearbox and bed engine. Part of the master thesis is application-mount designed components: location and number of containers with batteries, a proposal for a new engine bed suitable for a hybrid powerplant. In the sub - section of the thesis is made a simple calculation of the economic return on investment from the perspective of the end-user aircraft with a hybrid powerplant.

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