The charging air cooler is an essential component in the MAN L21/31 engine’s air intake system. It cools the compressed air from the turbocharger before it enters the combustion chamber, increasing air density and improving combustion efficiency. By lowering the intake air temperature, the charge air cooler enhances engine power output, reduces fuel consumption, and helps control emissions, making it vital for optimal engine performance and environmental compliance.
The spring marked with code K 72138 supports the function of the flexible rod K 72135 by providing tension and ensuring its return to a neutral or resting position. This spring is critical in systems where precise control of mechanical motion is required, such as in fuel regulation or lubrication delivery. Its resilience under thermal and mechanical stress ensures long-term reliability, making it an important component for the safe and efficient performance of the Sulzer ZV40/48 engine.
The lever identified as K 72130 is a control component designed for manual or mechanical operation of the 3-way flow control valve K 72105. Its role is to enable smooth directional changes of fluid flow—such as oil or cooling water—within the engine’s piping network. Precision-engineered for reliable operation and ease of use, this lever enhances system flexibility, allowing operators to manage flow routes efficiently during both normal operation and maintenance procedures.
The nipple with code number K 72320 is a specialized connector used in conjunction with the block-type ball cock K 72302 in the Sulzer ZV40/48 diesel engine. This component ensures a tight and secure fit between piping elements, facilitating precise flow control of fluids—typically fuel or lubricants—within the system. Built for durability and pressure resistance, it plays an essential role in maintaining the integrity of the engine’s fluid systems, particularly under high-load or variable operating conditions.
The main starting valve - TDI plays a critical role in the MAN L21/31 engine’s starting system by regulating the supply of compressed air to the engine’s cylinders during startup. This valve controls air flow with precision to ensure a smooth and reliable engine start, preventing damage and promoting longevity. Its reliable operation is essential for efficient engine ignition, especially in demanding marine and industrial applications.
The coupling flange is an essential connection part in the MAN L21/31 engine that joins the engine shaft to auxiliary equipment such as pumps or generators. This flange ensures secure mechanical linkage and alignment, enabling efficient power transmission and minimizing vibrations and mechanical stress. Its robust construction is vital for maintaining reliability in heavy-duty engine operations.