Lube oil and fuel systems

IBS offers:

  • Low pressure gear pumps
  • Low pressure duplex filters
  • Oil supply systems
  • Hydrive systems
  • Barrier fluid systems
  • Oil treatment plants
  • Fuel- & Lube oil systems
  • Separators- & filter modules
  • Intake air systems

Lubricating oil systems form important core components of working- and power machines. Therefore, IBS prefers the use of gear pumps for the conveying of lubricants and lubricants, as they mix liquids optimally. This homogenization promotes greater use of fuel.

Separator and filter systems

We offer application specific designed separator and filter systems.

Mediums to be processed are usually lube oil, fuel and emulsion.

To be used in internal combustion engines and lube oil circuits.

The operation of the separator offers the possibility of permanent operation of the lube oil system from startup to the end of the life-cycle of the machine. With IBS, the lube oil is always in excellent condition and changing intervals of the lube oil are extended.

When separating heavy fuel oil in marine applications, it is best to connect a purifier (for water removal) and a clarifier (for solid state separation) in series.

Filtration technology is used for solid-state separation for lubricating oil, fuel and coolant/lubricant combinations. Our filter systems are designed for production and to extend the service life of the machines.

Based on our experience and know-how, we offer support, consultation and a trouble free installation of the filtration system. Filtering systems solutions are engineered, based on individual requirements for each application.

Fuel preheating and treatment for
Diesel, palm oil, heavy oil

For more than 10 years, IBS has gained experience with the fuel system for diesel engines and has pursued consistent further development. Today we are in a position to adapt the fuel system in its individual sections to diesel engines in such a way as to ensure maximum operational safety and the best preparation results with regard to low-wear operation of the diesel engine. Optimal fuel preparation also leads to better utilization of the fuel. The gentle, step-by-step heating of the HFO also contributes to this. The entire fuel system is divided into the unclean and clean areas.


The Unclean area is preferably summarized in a closed space near the storage tanks.

The following modules are included:

  • Fuel supply modules
  • HFO Separator Module
  • Fuel Supply Module

1.1. Fuel Supply Module

The fuel transfer module moves the fuel from the storage tanks into the day tanks. This is where the fuel is filtered and preheated. The gradual heating with low L’ T values in the heat exchanger prevents excessive stress on the fuel. > Thus, the danger of “cracking” is practically eliminated. Gear pumps are used to convey the fuel, which, because of their working method, cause a homogenization of the fuel. Fuels up to viscosities of 1000 mm2js can be economically extracted.

1. HFO Separator Module

Self-cleaning separators are a requirement, because fuel with a high viscosity are contaminated with liquid and solid particles. The best solution is to connect two separators (purifier & clarifier) in series. The main requirement of separation is that during working temperature there is a sufficient density difference between the separating mediums. The cleaning effect also depends on the form, size, density, viscosity, dissolution properties and throughput volume of the fuel. The module consists of the control unit, PLC, gear pumps, heat exchangers and separators. After the cleaned fuel gets pre preheated, it is pumped into the HFO clean tank.

1.3. Fuel Supply Module

This module connects the HFO-Clean-Tank with the LFO-Day-Tank. There is a constant fuel supply of the loop pipes. The back flush filter with the corresponding standby filter are installed on the main line of the module and conclude the cleaning and conditioning process. The flush frequency of the automatic filter is a good indicator of the quality of the separation process. Today, it is possible that heavy oils consist of 600 mm2js at 50°C with 12% gasoil and 88% residual oils at 600 mm2js. At this condition, there is a risk that at the low boiling molecules evaporate. That’s why the IBS pressure systems operate 1 bar above the evaporation pressure.


The clean are mainly consists of:

HFO/LFO booster module

Since the clean area is near the diesel engines, only clean modules are installed where no contaminants are removed from the fuel.

2.1. HFO/LFO booster module

The HFO/LFO booster module is used to measure the viscosity. To ensure a proper injection viscosity the following components are relevant:

In the mixing tank, fuel from the supply unit and returning fuel from the fuel pumps is mixed and returned to the system. This is also how heating power is conserved, because the returning fuel is still hot. When switching from LFO to HFO and back, the volume of the mixing tank is used to gradually increase or decrease the temperature, to protect the fuel pumps from a temperature shock. The end pre-heater provides the last heating step to the fuel system. The heating elements with a low watt density ensure a gradual and gentle heating process. It is optional to heat with steam, electricity or thermal oil. The end pre-heater is adjustable depending on the type of heating process. The control system automatically adjust the power to ensure the right injection viscosity. The viscometer is a measuring device that determines the injection viscosity of the fuel. The detected values are transformed into a signal and send to the SPS. This is where the actual value are constantly compared to the set value and the correct adjustment to the end pre-heater is made. Through this system, the module can be operated with a variety of fuels. Which means fuel of different grade can be supplied to the diesel engine without changing any adjustments on the booster module. The additional installed temperature control settings are for safety, but require detailed knowledge of the characteristics of the fuel in combination with the viscosity.