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Högmonterat avgassystem
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering.
2004 (Swedish)Independent thesis Basic level (degree of Bachelor)Student thesisAlternative title
High mounted muffler sysyem (English)
Abstract [sv]

Denna rapport behandlar vårt examensarbete som genomfördes i samarbete med Metso Dynapac. Uppdraget bestod av att ta fram ett högmonterat avgassystem för jordpackningsmaskinerna CA 252/302/402-Vibratory Roller. Dagens avgassystemsystem är bakåtmonterat och slutar under och bakom kylaren. Ett högmonterat avgassystem finns som tillbehör och fästes på det bakåtmonterade systemet. Problemet är att befintlig ljuddämparplacering försvårar kylluftens passage genom motorrummet,vilket får till följd att en onödigt stor fläkt krävs för att få tillräckligt luftflöde genom kylaren. Vidare är det ett problem att det finns ett högmonterat tillbehörssystem. Dynapac vill endast ha ett system under ett artikelnummer. Vi använde Fredy Olssons modell för princip- och primärkonstruktion för att ta fram en ny ljuddämparlösning. I principkonstruktionsfasen definierades produkten enligt PPOME-metoden. Olika lösningsförslag togs fram och utvärderades mot de uppsatta kriterierna. Två förslag gick vidare till primärkonstruktionsfasen där en komplett lösning av produkten fastställdes.

Abstract [en]

This report considers our thesis work that was implemented in cooperation with Metso Dynapac. The assignment was to construct a high mounted exhaust system for the CA 252/302/402-Vibratory Roller. Today’s exhaust system is pointed backwards and ends under and below the radiator. A high mounted muffler system is available as an option and is attached to the standard muffler system. The main problem with the placement of the existing muffler, is that it makes it difficult for the cooling air to pass through the engine-room. This makes that an unnecessary large fan is needed to get enough air passage through the radiator. Another problem is that a high mounted muffler system is available as an option. Dynapac wants one muffler system and one part number. We used Fredy Olsson’s model for principle and primary construction to construct a new muffler system. In the phase of the principle construction the product was defined according to the PPOME method. Different proposals was presented and evaluated against the criterions. Two proposals went on to the phase of primary construction were a complete solution of the problem were presented.

Place, publisher, year, edition, pages
2004. , 77 p.
Keyword [sv]
Avgassystem, Produktutveckling, Dynapac
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-3951Local ID: oai:bth.se:arkivex217A49BF2F60BD77C1256EAE003BCD30OAI: oai:DiVA.org:bth-3951DiVA: diva2:831268
Uppsok
Technology
Supervisors
Note
Jens Björnsson 0708-353400 Marcus Kroon 0708-459597 Mats Nilsson 0709-689001Available from: 2015-04-22 Created: 2004-06-09 Last updated: 2015-06-30Bibliographically approved

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