Centrifugal force is capable of removing a wide range of particles extending into the sub-micron range. Analysis of the dirt collected by a MANN+HUMMEL centrifuge reveals an ability to remove particles of less than one micron in size, including engine clogging soot: oil films protecting critical engine components are equally as small if not removed contaminant particles in this size range cause component wear and a consequent reduction in engine durability. 

Principle of Operation

The MANN+HUMMEL centrifugal oil cleaner operates in by-pass and processes up to 10% of lubricating oil before returning it to the engine™s sump.
Oil is pumped into the centrifuge by the engine™s oil pump at pressure and directed into a hollow spindle where it exits via a cross-drilling into the centrifuge rotor. The rotor becomes full of pressurized oil that is then allowed to exit through two tangentially opposed nozzles in the rotor base. This causes rotation of the free spinning rotor assembly thus generating centrifugal force within the rotor. As contaminant particles enter the rotor they are subjected to a centrifugal force causing them to migrate radials outwards to the inner wall, where over time, they compact to form a dense cake.

OEM Centrifuge Design

Case Study Photos:

The benefits of installation can be summarized as follows:

• Reduced critical component wear

• Maintain oil cleanliness for longer periods of time

• In the marine sector, effectively control increased contaminant loading in heavy fuel applications.

• In-conjunction with an oil analysis program, the ability to extend oil life and the time between services.

• Increased life to engine over haul.

• Savings in general maintenance and service costs.

• Ability to resolve oil contamination problems for applications operating in hostile environments.

• Good return on investment.