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Daehyun Industry
Manufacturing Products
We specialize in manufacturing air receivers and exhaust receivers for
each global marine engine type and recently, we have been manufacturing
HP SCR Chambers and EGR Units, the nitrogen oxide reduction devices,
in compliance with the Tier III regulations proposed by IMO. In particular,
we mainly produce large engines and handle all processes in-house, from
cutting raw materials to piping, machining, painting, and insulation, to
produce the best products.
Air Receiver

It is a storage tank for compressed air for combustion, and serves to store
the compressed air needed to run the ship's engine.

Generally, in diesel engines, compressed air is injected into the combustion
chamber to burn fuel, and in large marine engines, it is essential for the
primary function of distributing and supplying compressed air to each
combustion chamber for combustion.

Exhaust Receiver

It collects and stores the high-temperature, high-pressure exhaust
combusted in each cylinder and delivers it to the turbocharger.

It contributes to the effective handling of high-temperature, high-pressure
exhaust gases and the optimization of engine performance.

HP SCR Chamber

It is an exhaust aftertreatment device that utilizes a selective reduction
catalyst to effectively reduce nitrogen oxides emitted by the engine.

It reduces nitrogen oxides in the engine exhaust by converting it to harmless
nitrogen (N2) and water (H2O) using a reducing agent. This device is essential
for compliance with Tier III regulations set by the International Maritime
Organization (IMO).

EGR Unit

It is a device for effectively reducing nitrogen oxides produced during fuel
combustion through exhaust gas recirculation.

To reduce nitrogen oxides produced during the fuel combustion, it circulates
a portion of the exhaust back into the intake system to reduce nitrogen
oxides produced during the combustion process. This device is essential for
compliance with Tier III regulations set by the International Maritime
Organization (IMO).