Summary of Product

Due to the environmental regulations and exhaust gas regulations such as EURO-V, EPA 10, and the like, the high power of an engine, and the improvement of mileage have become core technology tasks. In order to enable the high power, since a material of the engine is especially required to have high rigidity and a reduced thickness, it is difficult to apply an existing grey iron material as a cylinder block material and a cylinder head material because the existing grey iron material is damaged due to high combustion pressure. CJENG Co., LTD. succeeded in developing the technology for manufacturing a CGI cylinder head and cylinder block for a high power engine having a tensile strength of 400~450 MPa, which can be used even under a combustion pressure (Pmax) of 220 Bar or more, thereby taking an initiating role in improving engine performance according to the demand of customers.

Technical Features
ㆍFeatures of CGI (Compacted Graphite Iron) for High Power Engine
   1. Suitable Material properties for High-performance Diesel Engines
   2. Excellent Mechanical & Physical Properties
   3. High Damping Capacity
   4. Good Machinability

ㆍCountermeasure for Exhaust Gas Regulations (EURO-V, TIER-III)
    1. The improvement of engine power and the improvement of mileage are core technology tasks.

ㆍSevere Use Environment Resulting from an Increase in Combustion Pressure and Explosion Pressure of Engines
    1. There is a need to apply a material having durability under severe conditions (high temperature and high pressure).
    2. The development of a new material with high performance and the application of such a new material to valve train parts
         have been increasing.

ㆍHigh Rigidity and Reduced Thickness Required for Cyl, B/L, Head Casting Materials

ㆍExisting material: Gray Iron (T.S = 25 Kg/mm2)

ㆍCGI material: (T.S = 35~45 Kg/mm2), rigidity can be increased by 35% compared to that of the existing material.

ㆍThe world’s leading companies have developed CGI materials as a counterplan in the future.

CGI Engine Components