- Tytuł:
- Various designs of the two-stroke engine heads with the valve flushed system
- Autorzy:
-
Łoza, Ł.
Kaźmierczak, A.
Borkowska, J.
Skorupa, P.
Krakowian, K.
Cienciała, M. - Powiązania:
- https://bibliotekanauki.pl/articles/242546.pdf
- Data publikacji:
- 2015
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
engine
two-stroke
internal combustion
valve flushed system
piston-controlled cam
high petrol consumption
oil in the petrol
toxic by-products
loud noise
uneven running
low efficiency - Opis:
- The two-stroke engines have never acquired the popularity of the four-stroke engines due to their inherent performance limitations. The tasks of many engineering teams were to find the basic causes, which resulted in the inferior performance of these engines. Today’s task is to build a two-stroke engine whose performance could match that of a four-stroke engine in areas of common use. The most typical performance problems of a two-stroke engine are high petrol consumption caused by low efficiency, toxic by-products of combustion being emitted into the atmosphere (caused by oil present in the petrol), and uneven and loud engine noise. The greatest challenge is to achieve a good chamber purge during one stroke in which the fresh fuel mixture flows through the piston-controlled inlet port while at the same time the fumes are being exhausted through the outlet port. This in contrast with the four-stroke engines where the intake and exhaust are each done with two separate strokes. From the energy point of view, the two-stroke engine is not efficient because a certain amount of fresh fuel is being wasted in the exhaust fumes. We propose to replace the piston-controlled cam with the valve-flushed system, which will cause the combustion process to become more efficient. The purpose of this paper is to present various designs of the engine heads and analyse their performance. The goal of this proposal is to choose the best combination of these engine heads in order to achieve the optimum overall engine performance.
- Źródło:
-
Journal of KONES; 2015, 22, 4; 187-190
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł