Naslov
Main engine starting air system
(Sustav zraka za upućivanje glavnog motora)

Autori
Arnaut, Alen

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Pomorski fakultet

Mjesto
Rijeka

Datum
18.09

Godina
2018

Stranica
36

Mentor
Bernečić, Dean

Ključne riječi
fixed pitch propeller, starting, stopping, reversing, retiming

Sažetak
The starting air system described in this paper is used on engines with the fixed pitch propeller directly connected to the engine. Operations carried out by the system are: reversing, starting, sending speed signal and stopping of the engine. In order to achieve reversing operations in engine cycles must be retimed. This is done by reversing mechanism and starting air distributor retiming. When the direction of rotation is set, starting air is introduced into relevant cylinders and the engine starts to rotate. After it reaches appropriate speed, fuel is injected, and minimum speed is obtained. By sending signal to the governor engine speed is increased or decreased, depending on the command. When the needle valve on top of fuel pump is actuated engine is stopped. Regarding safety, systems is provided with several interlocks which prevent potentially dangreous events. In case of potential damage to the engine, slowdown and shutdown actions are carried out by the safety system.

Izvorni jezik
Hrvatski

Znanstvena područja
Tehnologija prometa i transport

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