The gear wheel bearing code K 71030 is a precision-machined component that drives the oil pump in the Sulzer ZV40/48 diesel engine. Its accurately cut teeth mesh with the mating gear to generate the flow and pressure necessary for engine lubrication. Constructed from hardened, wear-resistant steel, the wheel endures heavy load and high rotational speeds, ensuring reliable oil delivery to critical bearings and seals. Regular inspection of the gear wheel for wear and clearances helps maintain optimal lubrication performance and prevents premature engine wear.
The pressure spring coded K 74135 provides the necessary preload within the fuel transfer pump of the Sulzer ZV40/48 engine, maintaining constant contact between moving parts and compensating for wear over time. Its calibrated tension ensures that valves and seals engage correctly, preserving consistent fuel pressure and preventing pulsation. Made from fatigue-resistant alloy, the spring withstands the high-cycle demands and thermal variations typical of continuous pump operation. Proper spring performance is critical to fuel system efficiency and engine responsiveness.
The support ring with code K 74131 is a key structural element in the fuel transfer pump of the Sulzer ZV40/48 engine. Positioned between the pump housing and mounting bracket, it ensures precise alignment and absorbs radial and axial loads generated during operation. By keeping the pump assembly firmly centered, this ring minimizes vibration and wear on internal components. Crafted from high-strength, corrosion-resistant material, it guarantees long-term stability and contributes to the smooth, reliable delivery of fuel under demanding marine or industrial conditions.
Oil piping in the MAN L21/31 engine forms the network that transports lubricating oil to various engine parts, including bearings, pistons, and camshafts. This system ensures continuous lubrication under high pressure and temperature, reducing friction and wear. Maintaining the integrity and cleanliness of oil piping is critical to preventing oil leaks, contamination, and ensuring the engine’s smooth and reliable operation.
Cylinder covers with valves are integral parts of the MAN L21/31 engine that seal the top of each cylinder while housing intake and exhaust valves. These covers protect the combustion chamber and allow precise control of airflow in and out of the cylinder. Proper maintenance and sealing of cylinder covers ensure efficient engine operation, optimal combustion, and prevent leaks that could lead to performance loss or mechanical issues.
The silencer and charge air filter in the MAN L21/31 engine are crucial components for ensuring clean air intake and noise reduction. The charge air filter removes contaminants from the compressed air before it enters the engine, protecting internal components from damage and maintaining combustion efficiency. The silencer reduces exhaust noise, helping the engine comply with environmental noise regulations and providing a quieter operation, essential for both marine and industrial applications.