Lower fuel costs
Fuel Efficiency
Burn less fuel. Get the same power.
Fuel is one of the biggest operating costs of ships and power plants. We help your existing engines use less of it, especially at part load.
The challenge
Why engines waste fuel at part load
Engines are designed for 85 to 100 % load, but often run below it. Then the fuel valves no longer close cleanly: the needle bounces and fuel drips after the injection. The fuel burns less completely, deposits build up and consumption rises.
Standard fuel valve: the needle bounces after closing.
Our approach
Calm valves, complete combustion
Hydraulic pressure holds the fuel valve steady when it closes. After-dripping is almost completely avoided, so the fuel burns completely, even at part load.
Before: standard fuel valve with bouncing needle.
After: hydraulically supported fuel valve, after-dripping almost completely avoided.
No IMO-relevant components are changed. It works on 2- and 4-stroke diesel engines, on ships and in power plants.
What it delivers
Savings you can calculate
2 to 8 %
less fuel
0.65 to 1.69 years
payback in five business cases
Less CO₂
and fewer particles
Longer intervals
between maintenance
Values from individual business cases. Your result depends on your engine and how you run it.
A proven principle
Proven before, made new
The basic principle behind HYDRAULICA ran on more than 120 engines between 1989 and 2001: about 50 installed directly and 70 through licensees. In 2025 it was technically upgraded and relaunched.
Approvals: DNV Letter of No Objection in principle · RINA class approval
The product
Our solution: HYDRAULICA
Hydraulically supported fuel valves for 2- and 4-stroke diesel engines. System layout and business cases are on the product page.
How we work
From your data to real savings
1 · Share your data
Engine type, operating profile and fuel consumption.
2 · Calculation
We calculate savings and payback for your engine.
3 · Install
Planned around your schedule.
4 · Measure
You see the savings in your own fuel figures.
Questions we hear
Your questions, answered
How much fuel can I save?
Typically 2 to 8 %, depending on your engine and how often it runs at part load. We calculate it for your ship or plant before you decide.
How fast does it pay back?
In our business cases between 7 and 19 months. Your figure depends on fuel price and running hours.
Can I combine it with blueEGR?
Yes. HYDRAULICA can be combined with our exhaust gas recirculation.
Does it change certified components?
No. No IMO-relevant components are changed.
Contact
Get your savings calculation
Send us your engine type, your operating profile and your fuel consumption. We calculate what you could save and when it pays back.
Every engine is different. Figures on this page come from individual projects and are not a guarantee.
Our solutions
Explore our solutions
From the first pre-study to cleaner, more efficient engines and power from the water: find the solution that fits your project.