The cover support, designated by code number K 16273, provides structural stability and precise alignment for the front cover of the Sulzer ZV40/48 diesel engine. This component is essential for maintaining the secure fit of the front casing, which shields vital engine components from environmental exposure and mechanical wear. Engineered for durability, the support ensures that the front cover remains firmly in place during engine operation, minimizing the risk of misalignment or damage due to vibrations. Regular maintenance of this support helps preserve the engine’s overall reliability and structural coherence.
The tubular sealing with code number K 16226 is specifically designed to work with the side casing K 16221 on the Sulzer ZV40/48 engine. Its primary function is to provide a reliable and flexible seal that prevents the leakage of oil, gases, or other fluids at the interface between the casing and surrounding components. This sealing element is crucial for maintaining pressure balance and system integrity under high operating temperatures and vibrations. With durable, heat-resistant materials, the tubular seal ensures optimal engine performance and helps extend the life of adjacent parts.
The side cover with integrated safety valve, marked with code number K 16100, is a multifunctional component of the Sulzer ZV40/48 diesel engine. It not only serves as a structural enclosure to protect internal engine elements from external contaminants and mechanical damage but also incorporates a built-in safety valve that relieves excess pressure from the engine’s crankcase. This dual-purpose design ensures both structural integrity and enhanced operational safety. Made from robust materials and precision-engineered, this component plays a vital role in maintaining a safe and efficient engine environment during continuous operation.
Author: Dr. Nenad Končar, M.Sc.Eng.
Date: May 23, 2025
As global demand for electric vehicles and renewable energy reaches historic highs, China is once again taking the lead — this time with sodium-based batteries. While most of the world still relies on lithium-ion technology, Chinese manufacturers are introducing batteries that use cheaper and far more abundant sodium — an element that can be derived from ordinary sea salt.
Mopeds as Drivers of Change
At the center of this technological shift are electric scooters, popularly known as "little electric donkeys," a vital means of transportation in many Asian cities. Yadea, China's largest two-wheeler manufacturer, has already launched three sodium-powered scooter models and is developing fast-charging and battery-swap infrastructure. The goal? Affordable and safe electric mobility for millions of daily users.
Why Sodium?
Sodium-ion batteries aren’t new — they’ve been in parallel development with lithium-ion for decades. However, recent lithium shortages and price spikes (with lithium sources concentrated in only a few countries) have reignited interest in sodium. The advantages are clear: sodium is about 400 times more abundant than lithium, more stable at high temperatures, and less prone to catching fire.
Shorter Range, Greater Safety
The main drawback of sodium-ion batteries is their lower energy density. While lithium-ion batteries are ideal for long-range cars, sodium is better suited for two-wheelers and stationary systems. That’s why an increasing number of Chinese cities — such as Shenzhen — are becoming “battery-swap cities,” aiming for large-scale implementation of sodium technology in everyday transportation.
Energy Storage – The Real Battleground
The greatest potential for sodium-ion batteries may lie beyond mobility — in energy storage systems. Chinese power grid operators already use sodium batteries to balance the grid and integrate renewables. The first large-scale energy storage station in southern China now uses sodium cells — powering up to 1,500 households.
Europe and Croatia: Where Do We Stand?
While China invests massively in R&D and production infrastructure, Europe is still seeking a clear strategy. Croatia — with its existing industrial base and engineering expertise — could claim a role in the supply chain, especially by developing container-based solutions for stationary storage.
Conclusion: Time to Diversify
Lithium will remain dominant for some time, but sodium is opening the door to a new era of energy security and sustainability. Two-wheelers may just be the beginning — but the real battle for energy independence and technological leadership is already underway in labs, factories, and strategic plans.
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The stop plate with code number K 16037 is designed to control and restrict the movement or position of the crankcase vent in the Sulzer ZV40/48 engine. It serves as a safety and alignment component, ensuring that ventilation flow remains within the designated path to prevent oil mist leakage and pressure imbalances. Its role is particularly important in maintaining proper engine ventilation and preventing contamination or backflow. Built for resilience and precision, the stop plate supports the overall efficiency and environmental compliance of the engine's crankcase ventilation system.
The side casing, marked with code number K 16221-AD, serves as a protective and structural enclosure on the side of the Sulzer ZV40/48 diesel engine. This robust component helps shield vital engine systems from external contaminants such as dust, moisture, and mechanical impact. It also adds to the engine’s structural stability, especially in marine and industrial applications where exposure to harsh conditions is common. Engineered for endurance, the side casing is a critical part of maintaining engine cleanliness, safety, and operational consistency.