man humm centarfugal oil

MANN+HUMMEL Centrifugal Oil Cleaners High Performance Bypass Oil Filtration

MANN+HUMMEL centrifuges

clean oil by generating centri-

fugal force 2,000 times grea-

ter than gravity. It is this force

that separates solid conta-

minant from the oil. This tech-

nology has been proven to

remove contaminant down to

a sub-micron size, which is

advantageous to both engine

producers and users:

The Benefits:

• Cleaner oil

• Extension of oil life

• Lengthens service intervals

• Reduces engine wear

• Enhances long-term pre-

ventative maintenance

• Reduces maintenance costs

• Cuts waste disposal costs

• Reduces application down

time

• Maximises in-service time

for vehicle/engines/machine

• Reduces total cost of

ownership

• Helps ensure clean com-

bustion and fuel efficiency

• Supports engine technolo-

gy for the reduction of

exhaust emissions (e.g.

exhaust gas recirculation)

• Fast return on investment

MANN+HUMMEL centrifugal

oil cleaners are internationally

recognised in providing

superior bypass filtration for

the removal of contaminant

from the lubricating oil of Die-

sel engines. The technology

can also be successfully used

for gearboxes, hydraulics and

other industrial fluids.

MANN+HUMMEL provide its

centrifuge technology to the

following market sectors:

• Trucks

• Buses

• Marine

• Power Generation

• Mining Machinery

• Locomotives

• Construction

• Agriculture

• Military

• Industrial Fluids

2

MANN+HUMMEL Centrifugal Oil Cleaners – the ingenious solution for many applications

3

The Importance of Clean Oil

technologies such as exhaust

gas recirculation have been

shown to increase the level

of contaminant, especially

soot in the lubricating oil.

The net effect is modern oils

are being required to work

harder, last longer and con-

tain higher levels of contami-

nation. Therefore, advances

in oil chemistry and filtration

technology are essential to

meet these needs.

Oil is the life-blood of the

engine and clean oil is

essential if an engine is to

operate efficiently throughout

its working life. In response

to environmental legislation

and customer requirements

engine manufacturers are

adapting their designs to

reduce harmful exhaust

emissions and at the same

time extend oil drain inter-

vals. Emission reduction

Photograph of soot.

Heavy durability engine

test – oil analysis results

displaying contaminant in-

crease with engine operation

hours. Engine size 8 litre,

250 kW Industrial Diesel.

The result concluded that the

MANN+HUMMEL centrifuge

controlled total contamination

levels within the lube oil at a

level below the engine ma-

nufacturers condemnation

limit for more than double

the standard drain interval.

Soot particles are sub-micron

in size. Soot is a hard pro-

wear particle. High soot

levels within a lubricating

oil have been shown to be

responsible for accelerated

wear of critical engine com-

ponents. Traditional full flow

and by-pass filters are unable

to remove soot contaminant

as it is too small to be captu-

red by the media.

MANN+HUMMEL bypass

centrifugal oil cleaners are

proven to be effective at

removing soot.

Sectioned Rotor with Contaminant

18

16

14

12

10

8

6

4

2

0

Diameter (microns)

Fre

quency (

%)

0.10.131

0.1720.226

0.2960.389

0.510.669

0.877 1.511.981 3.409

2.5991.151

Chart Showing Used Oil Soot Particle Size Distribution

Engine Hours

3.5

3

2.5

2

1.5

1

0.5

0

Tota

l In

solu

ble

s (

% m

ass)

0 100 200 300 400 500 600 700

Full Flow Filtration

Full Flow + Centrifuge

starting sample

after 24 hours passing through a centrifuge

4

Full flow filters are designed

to process all the oil used to

lubricate the moving parts of

the engine. However, the

need to maintain a high flow

and limit pressure drop

across the filtration media

restricts the ability to filter

out sub-micron particles.

This job is taken over by the

centrifugal oil cleaner in the

bypass. The MANN+HUMMEL

centrifugal oil cleaner proces-

ses approximately 10 % of

the oil flow provided by the

engine pump before returning

it directly to the engine sump.

Centrifugal Oil Cleaners – Principle of operation

Working principle

Oil is pumped into the centri-

fuge at engine pressure and

directed into a hollow spindle

where it exits via a cross

drilling into the centrifuge

rotor. The rotor becomes full

of pressured 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 genera-

ting the centrifugal force

within the rotor. As contami-

nant particles enter the rotor

they are subjected to a cen-

trifugal force causing them to

migrate radially outwards to

the inner surface of the rotor

wall where, over time they

compact to form a dense

cake. MANN+HUMMEL offer

both cleanable and disposa-

ble rotor designs.

Centrifuge

Full flowfilter

By-pass flow

Sump

Pump

Clean oil return

To engine components

The removal of particles by

centrifugal force is based

on their relative density and

therefore there is no restric-

tion on contaminant size.

5

MANN+HUMMEL cleanable

and disposable metal centri-

fuges contain patented

Swept Rib Technology in the

rotor cover. These ribs are

used to displace the conta-

minated fluid from the rotor

core to the outer edge where

the contaminants are acted

upon by higher centrifugal

forces, hence aiding cleaning

efficiency. Competitor centri-

fuges use inserts inside of

the rotor in an attempt to

achieve the same result.

Centrifugal Oil Cleaners – Principle of operation

Extensive comparative

testing of various insert de-

signs has shown there to be

no noticeable advances in

cleaning efficiency for the

removal of sub-micron soot

coupled with a greatly redu-

ced contaminant holding

capacity.

MANN+HUMMEL Swept Rib Technology

MANN+HUMMEL were the

first to introduce to market a

centrifugal oil cleaner with a

100 % metal free rotor. The

MANN+HUMMEL plastic

rotor is fully combustible and

can be incinerated at dis-

posal. This design contains

patented Internal rib techno-

logy throughout its complete

length. Internal rib plastic

rotors ensure that all of the

oil and hence the contami-

nant is rotating at the same

speed as the rotor. As with

the swept rib design, internal

rib technology also helps

displace the oil and contami-

nant from the rotor core to

the outer edge. These two

effects provide an even

greater cleaning efficiency

without compromising conta-

minant holding capacity.

Sectioned rotor full with contami-

nant. Sectioned rotor displaying

the internal ribs.

Plastic rotor and coverTest Time (hr)

35

30

25

20

15

10

5

0

Soot

Rem

oval (g

)

0 5 10 15 20 25 30

MANN+HUMMEL Plastic Centrifuge Internal Rib Technology

MANN+HUMMEL Centrifuge Swept Rib Technology

Plastic Insert Spiral Ribs Competitor Centrifuge

OEM used engine oil draw-down comparative test. The graph

displays soot removal by the centrifuge with time. Three centrifuge

concepts were tested. The MANN+HUMMEL Swept and Internal rib

designs provided a greater soot removal over the test period when

compared with a centrifuge using a plastic insert of spiral ribs.

6

68 933 30 101 to improveserviceability.

• Oil inlet threads and CutOff Valve (C.O.V.) ratingscan be tailored to suitcustomer requirements

• Other features can beincluded to suit specificcustomer requirements

• The net weight of theFM090 is 3.5 kg

• Suitable for system capaci-ty from 15 to 90 litres

• Rotor dirt capacity 0.9 litres• Rotor oil capacity1.125 litres

• Minimum oil feed pipe size9.5 mm internal diameter

• Minimum oil drain pipe size38 mm internal diameter

• This model is available witha cleanable rotor, and issupplied with paper insert

Technical DataFM090 Centrifuge

4 Fixing Holes

ø1176 CRS

ø 51

Oil Outlet

54 CRS

ø 173

320

210

20

ø 141

78

All measurements are in mm unlessotherwise stated

Oil Inlet

Minimum

HeightforRotorRem

oval

11

10

9

8

7

6

5

OilFlowRate(litre/min)

Performance CurvesTypical Rotor Performance for SAE 30 Oil @ 100 °C

9,000

8,000

7,000

6,000

5,000

RotorSpeed

(rev/min)

3 4 5 6 7

Supply Pressure (bar)

FLOW

SPEEDPart No.

68 991 42 101

Oil Inlet

Thread

3/8” B.S.P.

C.O.V. Rating,

bar

1.3

Type

FM090-31

7

• Incorporates a level controlbase for remote mounting

• Rotor dirt capacity 0.9 litres• Rotor oil capacity1.125 litres

• Minimum oil drain pipe size12 mm internal

• Maximum air consumption36 litres/hour

• This model is available witha cleanable rotor, and is

Technical DataFM090-LCB Centrifuge

Type

FM090-LCB

Transit

Oil

Connection

1/2” NPT

Air

Connection

1/4” NPT

C.O.V. Rating,

bar

1.3

216

108

50

110

20

120

19

1/2” NPT Oil Inlet

1/2” NPT Oil Outlet

1/4” NPT Air Inlet


76 CRS

16

ø 177

4 Fixing Holes

ø10.2

108 CRS

140

330440

Minimum

HeightforRotorRem

oval

Part No.

68 991 39 301

11

10

9

8

7

6

5



9,000

8,000

7,000

6,000

5,000

RotorSpeed

(rev/min)

3 4 5 6 7


FLOW

SPEED

supplied with paper insert68 933 30 101 to improveserviceability.


• The net weight of theFM090-LCB is 6 kg

• Full technical details canbe found on page 13

8


• For this centrifuge thefollowing items are availa-ble: Remote mounting basewith air assisted drainage68 999 11 101, Rotor disas-sembly tool 68 906 90 601,Standtube extraction tool68 906 90 901

• The net weight of theFM200 is 9.5 kg

• Suitable for system capaci-ty from 40 to 170 litres

• Rotor dirt capacity 2 litres• Rotor oil capacity 2.3 litres• Minimum oil feed pipe size12 mm internal diameter


• This model is available witha cleanable rotor, and issupplied with paper insert68 903 22 001 to improveserviceability


ø 90

Oil Outlet

ø 230

4 threaded fixing holes

160

ø 203

528

344

298

113.5


Oil Inlet

Minimum

HeightforRotorRem

oval

20

18

16

14

12

10OilFlowRate(litre/min)


5,000

4,000

3,000

2,000 RotorSpeed

(rev/min)

3 4 5 6 7


FLOW

SPEED

160

126 CRS

130

126 CSR

41

99

Type

FM200-21

Oil Inlet

Thread

1/2” B.S.P.

C.O.V.

Rating, bar

2.5

Threaded

Fixing Holes

M12

Part No.

68 991 19 701

9


• Remote mounting base68 999 11 101 with airassisted drainage is alsoavailable for use with thismodel

• Rotor disassembly may beaided by rotor disassemblytool 68 906 91 301

• The net weight of theFM400 is 22 kg

• Suitable for system capa-city from 200 to 1500 litres



• This model is only avail-able with a cleanable rotorand is supplied with paperinsert 68 933 22 601 toimprove serviceability


60

50

40

30

20



5,000

4,000

3,000

2,000 RotorSpeed

(rev/min)

3 4 5 6 7


FLOW

SPEED

ø 102

Oil Outlet

ø 330


160

690

139

161


Oil Inlet

Minimum

HeightforRotorRem

oval

160

126 CRS

184

126 CSR

58

146

404356

Type

FM400-23

Oil Inlet

Thread

3/4” B.S.P.

C.O.V.

Rating, bar

2.5

Threaded

Fixing Holes

M12

Part No.

68 991 38 801

10

68 903 02 801 to improveserviceability

• Oil inlet threads and Cut OffValve (C.O.V.) ratings can betailored to suit customer requi-rements

• Remote mounting base68 999 11 101 with air assisteddrainage is also available foruse with this model

• Rotor disassembly tool68 906 91 201 is required toservice this product

• The net weight of the FM600is 25 kg

• Suitable for system capacityfrom 200 to 1500 litres

• Systems with a higher capacitycan also be supplied – pleasecontact our sales office directlyfor further information.



• This model is only availablewith a cleanable rotor and issupplied with paper insert


ø 102

Oil Outlet

ø 330


160

769

139

161


Oil Inlet

Minimum

HeightforRotorRem

oval

80

70

60

50

40



5,000

4,000

3,000

2,000 RotorSpeed

(rev/min)

3 4 5 6 7


FLOW

SPEED

160

126 CRS

184

126 CSR

58

146

Part No.

68 991 18 901

Oil Inlet

Thread

3/4” B.S.P.

C.O.V.

Rating, bar

2.5

Threaded

Fixing Holes

M12

484

436

Type

FM600-23

For retrofit applications where

direct engine mounting of the

centrifuge is difficult,

MANN+HUMMEL offer remo-

tely mounted designs which

use air pressure to assist

the clean oil to return to the

sump. This option is suitable

only for applications where a

supply of compressed air is

available.

11

The centrifuge should be

mounted at an angle of no

more than 10 degrees from

the vertical. Temporary

increases in tilt angle due

to vehicle operation are not

important. For OEM applicati-

ons where tilt performance is

essential MANN+HUMMEL

will design the centrifuge

arrangement to meet the

required specification.

A MANN+HUMMEL centrifu-

ge can be designed onto an

engine as original equipment

or retrofitted to an existing

engine by the end user. The

by-pass centrifuge requires a

supply of pressurised oil. In

the majority of applications

the oil supply is obtained at

engine pressure via the lube

oil pump. In cases where oil

pressure is insufficient a

slave pump can be installed.

Installation

by the centrifuge in bypass,

in order not to starve the full

flow lubrication of engine

components. In the majority

of cases engine oil pumps

have sufficient excess oil

capacity to support a bypass

with a correctly sized centrifu-

gal oil cleaner. Please consult

with MANN+HUMMEL or your

local distributor for centrifuge

selection and installation

advice.

Oil leaving the centrifuge

needs to be able to fall back

to the engine’s oil sump

under gravity. It is therefore

important that the drain is

free from restrictions and that

the return is of the correct

diameter and above the oil

level within the sump.

When specifying a centrifuge

for an application it is vital to

ensure the oil system can

support the extra flow taken

19 9

42 1

2 1

01 e

n 0

409

Printe

d in G

erm

any

©

MA

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+H

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MANN+HUMMEL Group

The MANN+HUMMEL Group

is an international company

with its headquarters in

Ludwigsburg, Germany.

The group employs approx.

11,500 people worldwide at

more than 41 locations.

The company develops, pro-

duces and sells technically

complex components for the

automotive and other

industries. A key area is high

quality filtration products

for vehicles, engines and

industrial applications. The

OEM business with global

market leaders and pro-

ducers of vehicles, machines

and installations defines the

quality and performance

of the group. Filters for the

international aftermarket are

sold under numerous inter-

national brands as well as

under the MANN-FILTER

brand.

MANN+HUMMEL

Industrial Filters

The Industrial Filters Business

Unit with its headquarters in

Speyer, Germany is spe-

cialised in meeting the

requirements of off-highway

vehicle and engine appli-

cations, compressed air

and vacuum technology,

mechanical engineering and

plant construction. For these

and other industrial fields

MANN+HUMMEL Industrial

Filters offers high perform-

ance products for the fil-

tration and separation of air,

gases and liquids.

MANN+HUMMEL company

Joint venture company

MANN+HUMMEL GMBH, Business Unit Industrial Filters

67346 Speyer, Germany, Telephone +49 (62 32) 53-80, Fax +49 (62 32) 53-88 99

E-Mail: [email protected], Internet: www.mann-hummel.com

man humm centarfugal oil

Documents

importance of clean

oil chemistry

engine technology

soot contaminant

oil drain intervals

engine size

engine wear

engine producers