Automatic Lub Oil Filter R8-40 - Ditech AS

Automatic Lub Oil Filter R8-40
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© MAHLE

R8-40
Duties of Lube Oil
Motor lubrication should …
• Create a sustainable lubricating coating (no energy loss on gliding parts)
• Reduce the friction on gliding parts
• Cool the motor parts (protection against over-heating)
• Keep contaminations (particles) in suspension (transform resin and paint parts into particles)
• Seal (ensure that gliding parts are sealed)
• Protect metallic bright parts against corrosion
• Absorb noise
The most important parts to be lubricated are crankshaft bearings, piston rod bearings, gudgeon
pin bearings, plungers, cam shaft bearings, cam shaft bore and piston bore.
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
The MAHLE Solution
• Defined filter fineness down to 25 microns absolute
• Compact and robust design
• Continuous filtration process without interrupting the
operation during back-flushing
• Small back-flushing volume and low pressure loss
through concerted 2 stage cleaning process
• No use of filtration agents
• Low maintenance and service friendly design (filter
mesh easy to exchange)
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
Design of the R8-40 lube oil filter
• Double filter insert
• Rotating filter mesh cylinder
• Fixed suction nozzle (pipe)
• Outer ring: Filtration from the inside to the
outside
• Inner ring: Filtration from the outide to the
inside
• Pleated filter mesh and supporting mesh
• Cleaning by clean medium (filtrate)
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
Function of the R8-40 lube oil filter
• The suspension flows through the filter inlet into
the filter housing.
• The suspension flows through the inner part of
the double insert. Particle are held back on the
outer side of the inner ring and the inner side of
the outer ring.
• The filtrate flows into the clean section of the
housing and from there to the outlet of the
housing.
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
Function of the R8-40 lube oil filter
• When max. differential pressure or the set point
(time) is reached the cleaning process starts.
• The filter filter element is rotated by the
gearmotor.
• With a backflushing process clean and filtered
medium flows at high velocity through the filter
mesh.
• The fluid flows in the opposite direction of the
filtration process. The retained particles are
removed from the filter mesh and flow through the
suction nozzle into the sludge line and the waste
oil tank.
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
Technical Specification
• Design: Backflushing filter
• Nominal pressure: 10 bar
• Design pressure: 15 bar
• Operating temperature: up to 120 °C
• Cleaning pressure DP: 0.5 bar
• Differential pressure stability: min. 3 bar
• AC motors are used for cleaning cycle drive
• Materialien:
– Filter housing: St52 (1.0570)
– Filter body Steel (1.0038)
optional Alu
– Gaskets: FPM
– Wire mesh: 1.4401
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
Technical Specification
• Flow rate in m³/h proportionately to fineness:
Backflushing filter with own
medium backflshing
Filter
surface
cm²
Lube Oil SAE 30 / SAE 40
48 µm 34 µm 25 µm
R8-40 DN 200/125 F64 18.342 - 26202 183 - 262 110 - 157 37 - 52
R8-40 DN 250/200 F65 28.118 - 40168 281 - 402 168 - 241 56 - 80
R8-40 DN 300/250 F67 39.068 - 55811 391 - 558 234 - 335 78 - 112
R8-40 DN 350/300 F66 52.204 - 74577 522 - 746 313 - 447 104 - 149
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
References
• 8x Container Vessel
• Built from 2008 – 2011
• Shipyard Hyndai Heavy Industries (HHI)
• 13.100 TEU, 360m length
• Equipped with Automatic filter R8-40 with secondary filter
M3-5 (slugde collector)
Ship owner Rickmers on charter of MAERSK
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MAHLE Industriefiltration GmbH, IIE19S, Hendrik Hoppe, February2011
© MAHLE

R8-40
References
• 2x Ro-Ro Cargo Ship
• Built from 2006
• Flensburger Schiffbau Gesellschaft (FSG)
• 49.166 BRZ, 203m length
• Equipped with Automatic filter R8-30 incl. cover lifting device,
change-over element with By-pass filter and secondary filter
as slugde collector
Ship owner Cobelfret N.V. (Belgium)
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MAHLE Industriefiltration GmbH, IIE19S, Hendrik Hoppe, February2011
© MAHLE

R8-40
References
• 4x Container Vessel
• Built from 2004 – 2005
• Shipyard Meyer Werft
• 1.620 TEU, 169m length
• Equipped with Automatic filter R5-8 with By.pass filter
secondary filter M3-5 (slugde collector)
Ship owner Hansa Hamburg Shipping International
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MAHLE Industriefiltration GmbH, IIE19S, Hendrik Hoppe, February2011
© MAHLE

R8-40
References
• 8x Bulk Carrier
• Built from 1997
• Shipyard Yang Fan Group Co. Ltd., China
• DWT 92.500, 230m length
• Equipped with Automatic filter R8-40 with
by-pass filter
Ship owner NSC Schifffahrtsgesellschaft mbH & Co. KG
on charter of Glory Wealth Shipping Pte. Ltd., Singapur
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MAHLE Industriefiltration GmbH, IIE19S, Hendrik Hoppe, February2011
© MAHLE

R8-40
References
• 4x Container Vessel
• Built from 2008 – 2011
• Shipyard Hanjin Heavy Industries
• 5.100 TEU, 294m length
• Equipped with Automatic filter R8-40 with secondary filter
M3-5 (slugde collector)
Ship owner NSC Schifffahrtsgesellschaft mbH & Co. KG on charter of MAERSK
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MAHLE Industriefiltration GmbH, IIE19S, Hendrik Hoppe, February2011
© MAHLE

R8-40
References
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE

R8-40
Conclusion
The advantages are
• Effective filtration down to 25 microns
• Minimum pressure loss during backflushing
• Minimum backflushing volume
• Low maintenance and easy operability
• Exchange of only 4 filter mesh components – no continuous cartridge exchange necessary.
• Service life of the filter mesh more than 1 year (reported by shipowning companies)!
• High operating reliability
• Certified by all major classification societies
• World-wide service network
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R8-40
Certificate of non-objection
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MAHLE Industriefiltration GmbH, IIE19S, Uwe Gernhöfer, 16-February-2011
© MAHLE