Yalçın ÖZDEMİR, Seyid Fehmi DİLTEMİZ, Gökhan KANDEMİR

Dizel Lokomotif Ağır Hizmet Motorunda Kullanılan Egzoz Supap Bagası Hasarları

En genel tanımıyla baga (supap yuvası), içten yanmalı motorlarda silindir başlığında bulunan, supap oturma yüzeyiyle temas ederek sızdırmazlık sağlayan önemli bir motor bileşenidir. Hem egzoz hem de emme supaplarının işlevini doğru bir şekilde yapabilmesi için bagaların da kusursuz bir şekilde çalışması gerekir. Supap ve baganın temas yüzeylerinde meydana gelecek hasar çalışma performansını etkilemektedir. Ağır yük dizel motorlar yüksek güç temini gerektiren araçlarda kullanılan yüksek hacimli motorlardır. Bu araştırma kapsamında baga ele alınmış ve ağır yük dizel motor egzoz supap bagalarına odaklanılmıştır. Egzoz subap bagaları hakkında bilgi verilmiş, örnek bir dizel lokomotif ağır hizmet motoru egzoz subap bagalarında meydana gelen hasarlar değerlendirilmiştir. Numuneler üzerinden alınan kesitler ve hasarlı yüzeylerden elde edilen görüntüler incelenmiştir.

Anahtar Kelimeler:

Hasar, Dizel Motor, Sübap

Exhaust Valve Seat Insert Damages of Diesel Locomotive Heavy Duty Engine

In general definition, the valve seat insert is an important engine component in the cylinder head of internal combustion engines, which provides sealing by contacting the valve seat surface. In order for both the exhaust and intake valves to function properly, valve seat inserts also need to work perfectly. Failures that effects the performance of the engine on the surface of valve and valve seat. Heavy-duty diesel engines are high-volume engines used in vehicles that require high power supply. The scope of this research is valve seats and researchers focused on the heavy-duty diesel engine valve seats. Information about the exhaust valve seats was given, and the damages on the exhaust valve seats of a sample diesel locomotive heavy-duty engine were evaluated. Images and sections were taken from the samples and explanations were given.

Keywords:

Failure, Diesel engine, valve,

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