Parker¸ºÔØÃô¸Ð·§ÅàÑµ(L90LS)

8/18/2019 Parker¸ºÔØÃô¸Ð·§ÅàÑµ(L90LS)

1/40

Mobile Controls16-03-31

Constant Flow Open Centre System “CFO”

Spool in neutral Activated spool

Typical flow characteristic

Manually controled valve

2 0 0

b a r

2 0 0

b a r

1 0 0

b a r

5 0

b a r

1 0 0

b a r

5 0 b a r

100

Spool travel

Max.

Pump

Flow

“M!T!"

O#T”

$O%!"&'(

“M!T!"

&'”$&FT&'(

System with fixed pump


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2 0 0

b a r

1 0 0

b a r

5 0

b a r

System with variable pump

$oad)sensin* system “$S”Closed Centre +alve

Spool in mid position Activated spool

Typical flow characteristic

Manual controlled valve

100

Spool travel

Max.

Pump

Flow

“M!T!"

O#T”

$O%!"&'(

“M!T!"

&'”$,FT&'(


3/40


F1 +

pump

L90LS

valve

Constant Flow Closed center system “CFC”

System with fixed pump and LS valve


4/40


THREE FUNCTIONS WITHOUT INDIIDU!"

PRESSURE COMPENS!TORS

50

210

210 210

210

100

210

200

200

210

50 100 200

210

System with fixed pump and LS valve


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6/40


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8/40Mobile Controls16-03-31

(reat demands for

manoeuvra/ilityArial lift

+ery suita/le

for ”$S”

systems

Applications well suited for ”LS”

(reat demands for

productivity

Forest machine

!-cavator

ac2hoe loader

3oo2 loader"efuse collector

$ar*e wheel loader



When partial pump flow is used for individual

functions

At high intensity usage

To create simple system solutions when a number offunctions with different flow rates is demanded

When system layout is spread out

At simultanious operation of functions

Power control and energy conservation

Reduce energy losses at idling and transportation

Suitable when;Suitable when;

System with variable pump and LS


10/40



100

M400

!0" #$

%&&0#$

#'0#$

400 (00 )00&00 *00

+low l,min

0

&(0-)00

1(0-*(0

100-&(0

(0-1*0

+or systems+or systems withwith variablevariable displacementdisplacement pumpspumps

LS - alve !ange



L"#LS

Features Emergency stop

Individual pressure compensators

Feed reducers

Force control Fast acting leake tight port relief valves

Counter pressure valve

Built-in pilot pressure supply

Wide range of spool-actuators

Wide range of function adapted spools Copied load signal

Fixed or variable pump



CFC-systemsLS-systems

Flow/section 90 l/min, without

compensator

130 l/min

Nodular ironMa pressure 3!0 "ar

Stac#a"le 1 to 10 sections

Ser$ice ports

%1/!

&/'( - 1)*N

+wo speed control

Le$er release unction

ump unloadin. inlet uilt-in main port relie $al$es

uilt-in eed reducers

Copy spool unction

Function maniolds

Spool actuators

manual

pneumatic prop on-o

hydraulic

electro-hydraulic prop on-

o

ressure compensators

pplication adapted spools

L"#LS



L"#LS

pplications

Forest machines Articulated truck

cranes

Fork lifts

Excavators

efuse vehicles !kip loaders

"rill rigs

Customers

!I!# $ogging F Weyhausen

!chaeff

Atlas Copco

%el &ob



$%LS'$((#LS$%LS'$((#LS

+eatures

.ndividual pressure compensators

+eed reducers

+orce control

+ast acting lea/ tight port

relief valves

ounter pressure valve

uilt-in pilot pressure supply

Wide range of function adapted

spools

opied load signal .ntermediate sections

Mid-inlet



$%LS '$((#LS '$((#LS

#$-systems+low,section 120 l,min3

without compensator

&10 l,min

odular iron

Ma5 pressure *&0 bar

$tac/able 1 to 10 sections

Motorports

6*,4

1 1,1)7 - 1&8

$A9 17

Built-in main & port relief valvesBuilt-in feed reducers

Copy spool function

Spool actuators

hydraulic

electro-hydraulic prop :

on-off

ressure compensators

!pplication adapted spools

"ntermediate sections


17/40Mobile Controls

16-03-31

$%LS '$((#LS '$((#LS

!pplications

Forest mac#ines

$%cavators

Bac#oe loaders

'eac# stacers

(#eel loaders For lifts

Customers

)im*erac

,olvo

Baro

onsse

almar L.,



16-03-31

)#*

Features

/ptional unloadin valve in t#einlet section

Flo force pressure

compensation

Feed reducers

Force control

Fast actin lea ti#t port relief

valves

Counter pressure valve

(ide rane of function adaptedspools

Copied load sinal

!nti-priority function



16-03-31

)#*

+-systems

#$-systems

Ma5 flow,section *&0 l,min

6rey : nodular iron

Ma5 pressure *&0 bar

$tac/able 1 to ) sections

$ervice ports

$A9 17

uilt-in main : port relief

valves

uilt-in feed reducer

opy spool function

$pool actuators manual

pneumatic prop : on,off

hydraulic

electro-hydraulic prop :

on-off

Application adapted spools

Anti priority function



16-03-31

)#*

Applications

Reach stac/ers

Articulated dump truc/s

Mobile cranes

+orest machines

ustomers

!olvo

%almar #M!

$M! #ansing



16-03-31

+##LS

+eatures

Poppet design ;ero lea/age

not sensitive to temperature

shoc/s

+ast acting lea/-tight port relief

valves ounter pressure valve

+unction adapted spools

#ow pressure drops

high function speed

low energy consumption

Priority function

9asy to install



16-03-31

+##LS

#$-systems

+low,section 4(0 l,min

odular iron

Ma5 pump pressure *00 bar

Ma5 service port pressure 400

bar

Monobloc/ &-section

onnections Pump3 & 5 1 1,4 =

Tan/3 1 5 1 1,&7

$ervice ports3 " 5 17

uilt-in port relief valves

uilt-in counter pressure valve

$pool actuators

P

+P

uilt-in pressure-controlled

float position function

Priority function

Poppet-valve concept

Application adapted spools


23/40


+##LS

Applications Wheel loaders Reach stac/ers

Mobile cranes

+orest machines

95cavators

ustomers !olvo

#>ungby Machine

#una


24/40


2

EMER#ENC$

STOP %&EN'

CFC IN"ET SECTION ( SPOO" SECTION

T

".S.

P

COMPENS!TOR

%)'

DIRECTION

CONTRO"

SPOO"

".S.

"O#IC

CHEC)

!"E

INDIIDU!"

PRESSURE

REDUCTIONFUNCTIONS

T

".S.

P

!&

&$P!SS

!"E

RE"IEF

FUNCTION

L"#LS


25/40


2

I*l+, Comp+*-a,or Em+r/+* S,op Fu*,o*

a*3 Ma* R+l+4 al+ W,6 Plo, !--+mbl

"S

P7

P"

P1 T1

L"#LS nlet section


26/40


2

"S2 I*l+, S+,o* S6ow*/ Dr+, !,*/ Fx+3

S+,,*/ R+l+4 al+ Car,r3/+

L"#LS


27/40


2

T

".S.

P

COMPENS!TOR

%)'

DIRECTION

CONTRO"

SPOO"

".S.

"O#IC

CHEC)

!"E

INDIIDU!"

PRESSURE

REDUCTIONFUNCTIONS

T

".S.

P

!&

M!IN

ST!#E

PI"OT

ST!#E

P.".P.7.

"S1 I*l+, S+,o* S6ow*/ Cop

Spool Fu*,o*

COP$

SPOO"

L"#LS


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2

I*l+, S+,o* S6ow*/ Cop Spool Fu*,o*

"S

P7

P"

L"#LS


29/40


2

S*/l+ Spool al+ EC Op+ra,+3

S6ow*/ S+r+ "*+ R+l+4 8 !*,9 a,a,o* Car,r3/+- :

Cou*,+r9pr+--ur+ al+ * Ou,l+, S+,o*

! & PS

T

".S.

P

".S.P.

P2

TP

MP

T;

COUNTER PRESSURE

!"E

L"#LS


30/40


3

T;

T28MP

TP

PS

"SP

Ou,l+, S+,o* S6ow*/ Pr+--ur+ R+3u*/ For Plo, Suppl

a*3 Cou*,+rpr+--ur+ al+

L"#LS .utlet Section


31/40


$oad sense valve $S and7or CFC

Spool in neutral position

L"#LS


32/40


$oad sense valve $S and7or CFC Spool in outer position

2B!) ump to motorport B4 .otorport ! to tan4

L"#LS


33/40


3

25

50

0 ?0 100@

F " O

W % " P M '

SPOO" STRO)E

M+,+r*/ ,o Mo,or Por, +r-u- Spool S,roA+

L"#LS


34/40


3

20

=0

>0

?0

100

0

0 100 200 ;00

F " O W %

" P M '

DIFFERENTI!" PRESSURE % &ar '

P+r4orma*+ o4 I*33ual Comp+*-a,or !/a*-,

D44+r+*,al Pr+--ur+ 4rom al+ I*l+, ,o Mo,or Por,

L"#LS


35/40


$oad sense valve $S and7or CFCwith pressure feedbac/ on -side


L"#LS


36/40



$oad sense valve $S and7or CFC

with #$-logic

L"#LS


37/40


3

T

".S.

P

PS

T2

".S.P.

P2

T;

TP

! & ! &

Two -pool al+ w,6 M10 ma*4ol3

L"#LS


38/40


3

M10 Ma*4ol3 S+,o*

L"#LS


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3

FEATUREFEATURE ADVANTAGEADVANTAGE BENEFITBENEFIT

ST!C)!&"E!"E.

F"E7I&I"IT$. E!SIER TO INST!"".CHE!PER TO SERICE.

MODU"!R

CONSTRUCTION.

SIMP"IFIC!TION

FEWER E7TERN!"

COMPONENTS.

RE"I!&I"IT$.

E!SIER TO INST!""

S$STEM.

"O!D SENSIN#

WITH

!RI!&"E PUMP.

SIMP"E DESI#N

HI#HER M!CHINE

PERFORM!NCE.

HI#HER

WOR)IN# C!P!CIT$.

&ETTER FUE" ECONOM$.

OPTIMISED PERFORM!NCE.

E!SIER TO RETROFITOTHER FUNCTIONS

EMER#ENC$

STOP.

E!SIER TO MEET

EC DIRECTIES.

E!SIER TO INST!"".

"OWER OER!"" COST.

IMPROED S!FET$.

IMPROED RE"I!&I"IT$.

PRESSURECOMPENS!TION.

SIMP"E S$STEM DESI#N

: !SSEM&"$.INDIIDU!" M!7.

SPEEDS.

NO INTERFERENCE

&ETWEEN FUNCTIONS.

FEED REDUCER E!S$ TO SET DIFFERENT

FORCE "EE"S.

E!SI"$ INST!""ED

INCRE!SED EFFICIENC$.

S!FER OPER!TION.

"OWER INST!""!TION COST

L"#LS


40/40

FEATUREFEATURE ADVANTAGEADVANTAGE BENEFITBENEFIT

FORCE CONTRO"

IMPROED ST!&I"IT$ : S!FET$"ESS WE!R :

#RE!TER EFFICIENC$.

"OWER RUNNIN# COSTS.

MORE #ENT"E

M!CHINE

CH!R!CTERISTICS.

PREENTS HI#H PE!) PRESSURES.

PORT RE"IEFBS C!N &E SET C"OSE

TO M!7. WOR)IN# PRESSURE."ESS STRESS ON M!CHINE COMPONENTS.

IMPROED RE"I!&I"IT$..

COUNTER 9

PRESSURE

!"ES

"ESS RIS) OF C!IT!TION

SIMP"$ TO INST!"".

EN!&"ES UN"O!DED

"OWERIN#.

IMPROED M!CHINE PERFORM!NCE.

"ESS RIS) OF C$"INDER OR MOTOR

D!M!#E.

IMPROED FUE" ECONOM$

PROISION FOR

E7TERN!"

PI"OT FI"TER

#RE!TER F"E7I&I"IT$.

E!SIER TO )EEP PI"OT

S$STEM COMP"ETE"$

C"E!N.


"OWER INST!""!TION

COST

F!ST !CTIN#

"E!) TI#HT

PORT

RE"IEF !"ES

FUNCTION

!D!PTED

SPOO"S

E!S$ TO OPTIMISE

M!CHINE

PERFORM!NCE WITH

FEWER COMPONENTS

IMPROED

CONTRO""!&I"IT$

S!FET$ : RE"I!&I"IT$.

PI"OT PRESSURE

SUPP"$.

SIMP"E S$STEM

!SSEM&"$.

FEWER COMPONENTS

"OWER INST!""!TION

COST.


L"#LS

Parker¸ºÔØÃô¸Ð·§ÅàÑµ(L90LS)

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Transcript of Parker¸ºÔØÃô¸Ð·§ÅàÑµ(L90LS)