The retaining rings, code EN3N108, are essential securing components used in fine boring operations within the MAN L21/31 engine. These rings are precision-engineered to hold key internal elements in position during machining or assembly, ensuring consistent tolerances and mechanical integrity. Their robust construction allows them to resist deformation and vibration, contributing to the accuracy and durability of bored interfaces—especially in high-performance marine engine applications.
The spring identified by code K 27210 is a precision-calibrated component that regulates the opening pressure of the fuel injection valve in the ZV40/48 diesel engine. This spring is responsible for ensuring that fuel is injected into the combustion chamber at the exact moment and pressure required for optimal combustion. Its tension characteristics must remain consistent over thousands of cycles, resisting fatigue and deformation. As a vital part of the fuel system, this spring contributes directly to combustion efficiency, power output, and emission control.
The self-locking nut, code number K 27417, is specially designed for secure fastening of the spindle (K 27401) in the starting valve system of the ZV40/48 engine. Its self-locking feature prevents loosening due to vibrations or pressure fluctuations, thus maintaining the correct positioning and alignment of the starting valve. Made from high-grade materials with anti-corrosive properties, this nut plays a critical safety role, ensuring the reliability of engine starts over prolonged operational cycles.
The complete inlet valve, coded K 27500, is a fundamental component of the air intake system in the ZV40/48 diesel engine. This valve governs the flow of fresh air into the combustion chamber, opening at precisely timed intervals to ensure optimal fuel-air mixture and efficient combustion. Built to endure extreme thermal and mechanical stress, the complete assembly includes the valve spindle, guide, springs, and seating surfaces. Its flawless operation is key to maintaining engine power, fuel efficiency, and smooth running under both marine and industrial load conditions.
The spray nozzle, code 11.01227-0016.A, plays a critical role in delivering fine, high-pressure streams of lubricating or cooling fluids inside the MAN L21/31 engine. Positioned to target precise areas such as piston undersides or valve mechanisms, it ensures optimal thermal regulation and friction reduction. The nozzle's performance directly affects engine efficiency and component protection, making it indispensable for sustained, high-performance operation.
The cover with splash tube, code 11.01213-0057-1.0, is an integrated component designed to manage the distribution of lubricating oil within the MAN L21/31 engine. It prevents uncontrolled splashing and directs oil toward specific engine parts like bearings and gears, enhancing lubrication and reducing wear. This component is essential for maintaining oil cleanliness, ensuring component longevity, and supporting reliable engine operation under continuous load.
The pipe with code 11.01299-0139.0 is a vital fluid conduit within the MAN L21/31 engine system, typically used for transporting oil, coolant, or compressed air between critical components. Engineered for pressure resistance and thermal durability, this pipe ensures uninterrupted flow and structural integrity even under the demanding conditions of marine and industrial operation. Its precise routing and secure fittings contribute to system efficiency and ease of maintenance.
The piston ring coded K 27410 is designed specifically for the starting valve assembly, particularly for part K 27404. It provides a tight seal between the piston and valve housing, preventing air leakage during pressurized starts. Manufactured from high-performance materials, this ring resists deformation, wear, and thermal cycling. Its effectiveness is critical to maintaining the efficiency and responsiveness of the engine's pneumatic starting system.
The housing with code number K 27402 serves as the structural body of the starting valve in the ZV40/48 diesel engine. It encases the spindle and related internal components, providing robust protection and alignment. Built from corrosion- and pressure-resistant materials, this housing ensures the valve operates safely and efficiently under high-pressure air injection. Its design supports quick servicing and dependable engine starts even in harsh marine environments.
The cover with splash tube, code 11.01213-0057-1.0, is an integrated component designed to direct lubricating oil inside the MAN L21/31 engine. It prevents uncontrolled splashing, reduces oil loss, and ensures targeted lubrication of internal parts such as bearings and gears. This component plays a crucial role in maintaining oil cleanliness, reducing wear, and supporting smooth engine operation in demanding conditions at sea or in power plants.