隨著微處理控制器、傳感器元件成本的下降，控制技術(shù)的不斷完善，使得雙閥芯控制技術(shù)在工程機(jī)械領(lǐng)域得以應(yīng)用。英國(guó)Utronics公司利用自己的技術(shù)及專(zhuān)利優(yōu)勢(shì)研制出雙閥芯多路換向閥，已廣泛應(yīng)用于JCB、Deere、DAWOO、CASE等公司的挖掘機(jī)、裝載機(jī)及挖掘裝載機(jī)等產(chǎn)品上。為適應(yīng)中國(guó)工程機(jī)械產(chǎn)品對(duì)液壓系統(tǒng)功能要求。穩(wěn)定性以及自動(dòng)化控制程度的不斷提高，Utronics公司產(chǎn)品適時(shí)進(jìn)入中國(guó)市場(chǎng)，現(xiàn)已初步完成廈工（5t）裝載機(jī)、詹陽(yáng)（8t）挖掘機(jī)樣機(jī)調(diào)試并進(jìn)入試驗(yàn)階段。 R901061279 PV7-1X/100-118RE07MW0-16WG

R901059512 PV7-1X/40-71RE37MW0-08WH力士樂(lè)Rexroth

R901055473 PV7-1X/40-45RE37MW0-16WG

R901054762 ABHPG-PV7/10-20C0+10-20C0/100L-4-A0/S

R901054761 ABHPG-PV7/06-10A0/90S-4-A0/S力士樂(lè)Rexroth

R901049367 ABHAG-0160S43/PV7-25/132M/NTW/005C068A

R901049299 ABAPG-PV7-118D0+10SO18DRG/225S-4-B0/SEFR

R901047776 PV7-1X/40-45RE37MC0-16-A446力士樂(lè)Rexroth

R901047606 PV7-1X/06-10RA01KA0-10

R901043560 PV7-1X/10-20RE01MW0-10WH力士樂(lè)Rexroth

R901041243 ABHAG-0160SS0/PV7-25/160M/AB1A041A

R901040726 ABHPG-PV7/10-14C5/132S-4-B0/S

R901032005 PV7-1X/40-45RE37MC7-16WG力士樂(lè)Rexroth

R901030877 ABHPG-PV7/16-20C0/132M-4-B1/L

R901026649 PV7-1X/06-10RA01MA0-10-A441

R901022287 PV7-1X/25-30RE01MN0-16力士樂(lè)Rexroth

R901021722 PV7-1X/63-71RE07KW0-16WG

R901017159 PV7-1X/63-71RE07MW0-16WH力士樂(lè)Rexroth

R901012191 ABVPG-PV7/10-20+06-14A399/112M-4-B0/S

R901005498 ABVPG-PV7/100+100+ 40/ /004 A力士樂(lè)Rexroth

R901003246 ABSAG-0400S40-W/PV740-45/180M/012B764-A1

R900979440 PV7-1X/40-45RE37MW0-16

R900978121 PV7-1X/06-10RE01MA3-10力士樂(lè)Rexroth

R900976176 PV7-1X/25-45RE01MN0-08

R900976100 PV7-1X/63-71RE07MC6-16力士樂(lè)Rexroth

R900973308 PV7-1X/06-14RA01MA0-07-A399

R900973306 PV7-1X/06-14RA01MA0-04-A399

R900964375 PV7-1X/06-14RE01MA3-07力士樂(lè)Rexroth

R900963916 PV7-1X/06-10RA01MA0-10-A501

R900961521 PV7-1X/100-118RE07MC6-16

R900959317 PV7-1X/40-45RE37MC7-16力士樂(lè)Rexroth

R900958306 PV7-1X/06-14RE01MA0-07

R900954137 PV7-1X/40-45RE37MC6-16

R900952282 PV7-1X/06-14RA01MA3-07力士樂(lè)Rexroth

R900950955 PV7-2X/20-25RA01MA0-10

R900950954 PV7-2X/20-25RA01MA0-05

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R900950952 PV7-2X/20-20RA01MA0-05

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R900949187 PV7-1X/100-118RE07MD6-16

R900948299 PV7-1X/100-150RE07MC5-08WH

R900946174 PV7-1X/40-45RE37MC0-16-A276力士樂(lè)Rexroth

R900942455 PV7-1X/63-71RE07MC5-16WH

R900941073 PV7-1X/10-14RE01MC0-16-A268

R900941071 PV7-1X/10-14RE01MC0-16-A267力士樂(lè)Rexroth

R900939159 PV7-1X/16-20RE01MN0-16

R900937407 PV7-1X/100-150RE07KD0-08

R900936326 PV7-1X/06-10RE01MA0-05力士樂(lè)Rexroth

R900935443 PV7-1X/40-45RE37MC3-16-A184

R900933324 PV7-1X/10-14RE01MC5-16WH

R900933323 PV7-1X/25-30RE01MC5-16WH力士樂(lè)Rexroth

R900931321 PV7-1X/06-14RA01MA0-04-A257

R900930060 PV7-1X/10-14RE01MC0-16-A202

R900928704 PV7-1X/100-118RE07MN0-16力士樂(lè)Rexroth

R900926429 PV7-1X/16-20RE01MC5-16 WH

R900925956 PV7-1X/63-71RE07MD0-16-A234

R900922602 PV7-1X/40-45RE37MD0-16-A234力士樂(lè)Rexroth

R900920233 PV7-1X/16-20RE01MC0-16-A17

R900919237 PV7-1X/06-14RA01MA0-07

R900919235 PV7-1X/06-14RA01MA0-04力士樂(lè)Rexroth

R900916201 PV7-1X/10-20RE01KC0-10

R900915470 PV7-1X/100-150RE07MD0-08

R900914685 ABAPG-PV7/63C0-14/180M-4-B0/SE-A力士樂(lè)Rexroth

R900914676 ABAPG-PV7/40C0-16/160L-4-B1/SE-A

1、傳統(tǒng)單閥芯換向閥的缺陷?

　　 傳統(tǒng)的單閥芯換向閥所組成的液壓系統(tǒng)難以合理解決好以下功能和控制之間存在的矛盾：?

　　 （1）液壓系統(tǒng)設(shè)計(jì)時(shí)為提高系統(tǒng)穩(wěn)定性，減少負(fù)載變化對(duì)速度的影響，要么犧牲部分我們想實(shí)現(xiàn)的功能，要么增加額外的液壓元件，如調(diào)速閥、壓力控制閥等，通過(guò)增加阻尼，提高系統(tǒng)速度剛度來(lái)提高系統(tǒng)的穩(wěn)定性。但是這樣元件的增加又會(huì)降低效率，浪費(fèi)能源；還會(huì)使得整個(gè)系統(tǒng)的可靠性降低、增加成本。?

　　 （2）由于換向結(jié)構(gòu)的特殊性，使得用戶(hù)在實(shí)現(xiàn)某一功能時(shí)必須購(gòu)買(mǎi)相應(yīng)的液壓元件，再加上工程機(jī)械廠家會(huì)根據(jù)不同最終用戶(hù)要求設(shè)計(jì)出相應(yīng)的功能，這樣會(huì)造成生產(chǎn)廠家采購(gòu)?fù)?lèi)、多規(guī)格的液壓控制元件來(lái)滿(mǎn)足不同功能要求的需要，不利于產(chǎn)品通用化及產(chǎn)品管理，同時(shí)會(huì)大大提高產(chǎn)品成本。?

　　 （3）由于執(zhí)行機(jī)構(gòu)進(jìn)出液壓油通過(guò)一根閥芯進(jìn)行控制，單獨(dú)控制執(zhí)行機(jī)構(gòu)兩側(cè)壓力是不可能的。因此，出油側(cè)背壓作用于執(zhí)行機(jī)構(gòu)運(yùn)動(dòng)的反方向，隨著出油側(cè)背壓升高，為保質(zhì)執(zhí)行機(jī)構(gòu)的運(yùn)動(dòng)，必須提高進(jìn)油

?R900619532 4WRDE25V1-350L-5X/6L24K9/MR

?R900617516 4WRDE16W5-200L-5X/6L24ETK9/WG152MR

?R900555409 4WRDE10V100L-5X/6L15ETK9/MR

?R900545419 GEHAEUSE4WRDE35E1000-41/

?R901135024 4WRDE10V1-50L-5X/6L24K9/MR-280

?R901134300 4WRDE16Q2-200P-5X/6L15K9/WG152MR

?R901132087 4WRDE25V1-350L-5X/6L15K9/VR-280

?R901131864 4WRDE16V125L-5X/6L24ETK9/WG152MR

?R901131452 4WRDE25V350L-5X/6L15EK9/M

?R901130863 4WRDE32V600L-5X/6L24K9/MR-576

?R901130612 4WRDE16V200P-5X/6L24ETK9/MR-280

?R901130572 4WRDE32E400L-5X/6L24EK9/MR

?R901130248 4WRDE10V100S-5X/6L15ETK9/MR

?R901129743 4WRDE32V600L-5X/6L24K9/MR-202

?R901127196 4WRDE16V200P-5X/6L24K9/VR-576

?R901127194 4WRDE10V100P-5X/6L24K9/VR-576

?R901125441 4WRDE25V350L-5X/6L24K9/VR-576

?R901125425 4WRDE16V125L-5X/6L24K9/V-576

?R901122858 4WRDE32V600L-5X/6L24ETK9/MR

?R901121801 4WRDE10V1-50L-5X/6L15K9/VR-280

?R901120775 4WRDE25E3-350P-5X/6L24ETK9/WG152M

?R901118086 4WRDE10V1-50S-5X/6L24K9/WG152MR

?R901117439 4WRDE16E125L-5X/6L15EK9/WG152M

?R901116616 4WRDE32V1-400L-5X/6L24K9/WG152MR

?R901115253 4WRDE16V1-125S-5X/6L24K9/WG152MR

?R901114170 4WRDE32V600L-5X/6L24K9/WG150MR-900

?R901113536 4WRDE10V100R-5X/6L15EK9/MR

?R901112269 4WRDE16W200L-5X/6L24ETK9/MR-280

?R901111031 4WRDE25V220L-5X/6L24K9/M-576

?R901105517 4WRDE25V350L-5X/6L15K9/VR-280

?R901104990 4WRDE32W600L-5X/6L24K9/M

?R901102032 4WRDE16V1-200L-5X/6L24K9/V

?R901098903 4WRDE16W125L-5X/6L24ETK9/WG152M

?R901097831 4WRDE10V50L-5X/6L15EK9/M-280

?R901097630 4WRDE10V25L-5X/6L15K9/VR-280

?R901096430 4WRDE16W200L-5X/6L24K9/WG152M

?R901096284 4WRDE32V600L-5X/6L24K9/VR-881

?R901095834 4WRDE10W1-100L-5X/6L24K9/V

?R901095362 4WRDE25V220L-5X/6L15ETK9/WG152M

?R901095318 4WRDE32W600L-5X/6L24K9/WG152M

?R901094073 4WRDE10V1-100L-5X/6L24K9/V

?R901093985 4WRDE16W200L-5X/6L24EK9/M

?R901092003 4WRDE10V50L-5X/6L24EK9/MR

?R901089060 4WRDE10E50P-5X/6L24K9/MR

?R901085389 4WRDE25V220L-5X=6L15ETK9/WG152M

?R901085388 4WRDE16V125L-5X=6L15ETK9/M

?R901085364 4WRDE16W1-200L-5X/6L24TK9/M

?R901083593 4WRDE25V350P-5X/6L24K9/MR

?R901082785 4WRDE16V125P-5X/6L24TK9/M

?R901079991 4WRDE27W500L-5X/6L24K9/MR-280

?R901079988 4WRDE16W1-125L-5X/6L24K9/MR-280

?R901079986 4WRDE16W1-200L-5X/6L24K9/MR-280

?R901079949 4WRDE25V000S-5X/6L15K9/VR-469

?R901079507 4WRDE25E1-350L-5X/6L24K9/WG152MR

?R901079142 4WRDE27W1-500P-5X/6L24K9/WG152MR

?R901078593 4WRDE16E1-125L-5X/6L24ETK9/WG152MR

?R901078127 4WRDE10V1-100P-5X/6L24TK9/MR

?R901075852 4WRDE25V220L-5X/6L24TK9/WG152M-280

?R901075442 4WRDE16V125L-5X/6L24TK9/M-280

?R901074358 4WRDE16V125L-5X/6L24ETK9/M-280

?R901074350 4WRDE32V400L-5X/6L24K9/MR

?R901072877 4WRDE10V50L-5X/6L24TK9/MR-280

?R901072551 4WRDE16V125L-5X/6L24TK9/V

?R901070226 4WRDE32V400L-5X/6L24K9/WG152MR

?R901068907 4WRDE10V25L-5X/6L24TK9/M

?R901068457 4WRDE25V220L-5X/6L15K9/MR-881

?R901067986 4WRDE32E600L-5X/6L24K9/MKCG-6-W250-1-Z-M-U-H1-10

KDG3V 5 33C80N E 10

KDG3V-5-33C80N-E-10-EN55

KDG4V3-2C20N-Z-M-U1-H7-60

KDG4V3-2C28S-M-U-H7-60

KDG4V3-2C28S-Z-VM-U-H7-60

KDG4V3-33C13N-Z-M-U-H7-60

KDG4V3-33C20N-Z-M-U-H7-60

KDG4V-3-33C30X-H-M-U-H7-60

KDG4V-3-33C30X-M-U-H7-60

KDG4V-3S-2B04S-M-U-H5-60

KDG4V-3S-2C08N-H-M-U-H5-60

KDG4V-3S-2C08N-M-U-H5-60

KDG4V-3S-2C08N-M-U-HA5-60

KDG4V-3S-33C08A-M-P-H5-60-EN47

KDG4V-3S-33C15A-M-P-H5-60-EN47

KDG4V-3S-33C15N-VM-FPBW-GP5-60

KDG4V5 2C50N Z M U H7 30

KDG4V5 2C65S Z M U H6 30

KDG4V5 33C50N Z M U H7 30

KDG5V 7 33C170N T H MUH1 10

KDG5V 8 33C270N T H MU H1 10

KDG5V-10-33C550N310-E-M-U-H1-11

KDG5V-10-33C550N310-EX-VM-U-H1-11

KDG5V-10-33C550N310-M-U-H1-11

KDG5V-10-33C550N-E-VM-U-H1-11

KDG5V-5-2C90N-T-M-U-H1-10

KDG5V-5-33C80N-EXHMUH110

KDG5V-5-33C80N-T-M-U-H1-10

KDG5V-5-33C80N-X-T-M-U-H1-10

KDG5V-7-2C180N100-X-T-M-U-H1-10

KDG5V-7-2C180N-E-M-U-H1-10

KDG5V-7-33C170N-EX-H-M-U-H1-10

KDG5V-7-33C170N-EX-VM-U-H1-10

KDG5V-7-33C170N-M-U-H1-10

KDG5V-7-33C170N-X-T-M-U-H1-10

KDG5V-8-2C280N-M-U-H1-10

KDG5V-8-33C250N170-X-H-M-U-H1-10

KDG5V-8-33C270N-EX-VM-U-H1-10

KDG5V-8-33C270N-M-U-H1-10

KDG5V-8-33C270N-X-M-U-H1-10

KDG5V-8-33C330N200-EX-H-M-U-H1-20

KDG5V-8-33C330N-E-M-U-H1-20

KDGMA3 616265 10

KDGMH 7 616268 10

KDGMH 8 616269 10

KDGMH-3-616262-10

KDGMH-7-PAB-F3-11-10

KFDG4V 3 2C20N Z M U1 H7 20

KFDG4V 3 2C28S Z M U1 H6 20

KFDG4V 5 2C50N Z M U1 H7 20

KFDG4V 5 33C50N Z M U1 H7 20

KFDG4V 5 33C50N25 Z M U1 H7 20

KFDG4V5 33C50N Z VM U1 H7 20

KFDG4V-5-2C50N-Z-MU-H7-20

KFDG4V5-2C50N-Z-V-MU1H720

KFDG4V-5-2C65S-Z-MU1-H6-20

KFDG4V-5-33C50N-Z-M-U1-H7-20-EN8

KFDG5V-7-2C200N-X-VM-U1-H1-12

KFDG5V-7-33C130N65-X-VM-U1-H1-12

KFDG5V-7-33C160N-X-VM-U1-H1-12

KFTG4V 3 2B20N Z M U1 H7 20

KHDG4V-3-02-157451-21

KHDG4V-3-02-157453-21

KHDG5V-5-2C100N-X-VM-U1-H1-20

KHDG5V-8-2C300N-EX-VM-U1-H1-20

KIT COIL D

KOLBENSATZ 130

KSDG4V-3-92L-24-M-U1-H7-11

KTG4V 3S 2B08N M U H5 60

KTG4V 3S 2B15N M U H5 60

KTG4V3-2B07N-Z-M-U-H7-60

KTG4V3-2B20N-Z-M-U-H7-60

KTG4V-3S-2B08N-M-U1-H5-60-EN427

KTG4V-3S-2B08N-M-U-H5-60-EN427

KTG4V-3S-2B08N-M-U-H5-60-EN427

KXCG-6-W250-Z-M-U-H1-10

KXG 8 W160 3 Z M U H1 10士樂(lè)葉片泵PVV PVQ

規(guī)格18至193

運(yùn)行噪音低 振動(dòng)小

適合多種不同速度和粘度范圍

可提供聯(lián)軸泵可和軸向柱塞泵和內(nèi)嚙合齒輪泵連接使用

PVV21-1X/060-040RA15DDMB，PVV21-1X/068-027RA15LUMB力士樂(lè)Rexroth

PVV41-1X/098-027RA15UDMC，PVV41-1X/122-036RA15DDMC

PVV42-1X/098-045RA15DDMC，PVV21-1X/068-027RA15LUMB

PVV51-1X/162-036RB15DDMC，PVV51-1X/193-027RA15DDMC力士樂(lè)Rexroth

PVV52-1X/193-040RB15URMC，PVV52-1X/193-055RB15UUMC

PVV54-1X/183-082RA15DDMC， PVV54-1X/139-082RA15UUMC

PVQ2-1X055RA15DLMB，PVQ2-1X068RA15DLMB力士樂(lè)Rexroth

PVQ21-1X060-018RA15DLMB，PVQ4-1X/82RA-15DMC

PVQ4-1X/98RA-15DMC，PVQ4-1X/113RA-15DMC

PVQ4-1X/122RA-15DMC，PVQ5-1X/139/154/162/193力士樂(lè)Rexroth

PVQ21-1X/060-040RA15DDMB，PVQ21-1X/068-027RA15LUMB

PVQ41-1X/098-027RA15UDMC，PVQ41-1X/122-036RA15DDMC

PVQ42-1X/098-045RA15DDMC，PVQ21-1X/068-027RA15LUMB力士樂(lè)Rexroth

PVQ51-1X/162-036RB15DDMC，PVQ51-1X/193-027RA15DDMC

PVQ52-1X/193-040RB15URMC，PVQ52-1X/193-055RB15UUMC

PVQ54-1X/183-082RA15DDMC ?PVQ54-1X/139-082RA15UUMC

PVV21-1X/060-040RA15DDMB，PVV21-1X/068-027RA15LUMB

PVV41-1X/098-027RA15UDMC，PVV41-1X/122-036RA15DDMC

PVV42-1X/098-045RA15DDMC，PVV21-1X/068-027RA15LUMB

PVV51-1X/162-036RB15DDMC，PVV51-1X/193-027RA15DDMC

PVV52-1X/193-040RB15URMC，PVV52-1X/193-055RB15UUMC

PVV54-1X/183-082RA15DDMC， PVV54-1X/139-082RA15UUMC

PVQ2-1X055RA15DLMB，PVQ2-1X068RA15DLMB

PVQ21-1X060-018RA15DLMB，PVQ4-1X/82RA-15DMC

PVQ4-1X/98RA-15DMC，PVQ4-1X/113RA-15DMC

PVQ4-1X/122RA-15DMC，PVQ5-1X/139/154/162/193

PVQ21-1X/060-040RA15DDMB，PVQ21-1X/068-027RA15LUMB

PVQ41-1X/098-027RA15UDMC，PVQ41-1X/122-036RA15DDMC

PVQ42-1X/098-045RA15DDMC，PVQ21-1X/068-027RA15LUMB

PVQ51-1X/162-036RB15DDMC，PVQ51-1X/193-027RA15DDMC

PVQ52-1X/193-040RB15URMC，PVQ52-1X/193-055RB15UUMC

PVQ54-1X/183-082RA15DDMC ?PVQ54-1X/139-082RA15UUMC