由于執(zhí)行機(jī)構(gòu)進(jìn)出液壓油通過一根閥芯進(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)油側(cè)壓力。這樣會(huì)使得液壓系統(tǒng)消耗的功能增加，效率低，發(fā)熱增加。A2FM250/60W-VZB020 910653?

A2FM355/60W-VZH010 920780 A2FM500/60W-VPH010 943251 A2FM500/60W-VZH010 968982?

A2FLM710/60W-VPH010 969815 A2FLM710/60W-VZH010 965974 A2FM1000/60W-VPH010 949444?

A2FM1000/60W-VZH010 944773 A2FO10/61R-PAB06 9424894 A2FO10/61R-PBB06 9610682 A2FO12/61R-PAB06 9420472?

A2FO12/61R-PBB06 9610683 A2FO16/61R-PAB06 9411113 A2FO16/61R-PBB06 9411121?

A2FO23/61R-PAB05 9427223 A2FO23/61R-PBB05 9610684 A2FO28/61R-PAB05 9425164?

A2FO28/61R-PBB05 9610685 A2FO32/61R-PAB05 9410193 A2FO32/61R-PBB05 9410198

A2FO45/61R-PZB05 9411585 A2FO56/61R-PAB05 9425190 A2FO56/61R-PBB05 9610686

A2FO63/61R-PAB05 9408527 A2FO63/61R-PBB05 9408552 A2FO80/61R-PAB05 9424687?

A2FO80/61R-PBB05 9610687 A2FO90/61R-PAB05 9408467 A2FO90/61R-PBB05 9408472?

A2FO107/61R-PAB05 9423259 A2FO107/61R-PBB05 9438282 A2FO125/61R-PAB05 9409641?

A2FO125/61R-PBB05 9409642 A2FO160/61R-PAB05 9422192 A2FO160/61R-PBB05 9610688?

A2FO180/61R-PAB05 9409371 A2FO180/61R-PBB05 9409358 A2FO200/63R-PAB05 2011993?

　　 采用雙閥芯技術(shù)的液壓系統(tǒng)，由于執(zhí)行機(jī)構(gòu)進(jìn)出油側(cè)閥口閥芯位置及控制方式各自獨(dú)立，互不影響，這樣通過對(duì)兩閥芯控制方式的不同組合，利用軟件編程能很好解決傳統(tǒng)單閥系統(tǒng)不能解決的問題，同時(shí)還可以輕易實(shí)現(xiàn)傳統(tǒng)液壓系統(tǒng)中難以實(shí)現(xiàn)的功能。?

2、雙閥芯換向閥的兩種基本控制策略 力士樂閥 ? ? ? ?R900927235 4WREE10V50-2X/G24K31/A1V

力士樂齒輪泵 ? ? ? ?0510525009( AZPF-1X/011RCB20MB)

力士樂閥 ? ? ? ?4WREE6E32-2X/G24K31/F1V(R900925733)

力士樂閥 ? ? ? ?4WRE6W16-2X/G24K4/V (R900944121)

派克閥 ? ? ? ?BD15AAANB10

　　 由于雙閥芯換向兩油口控制的靈活性，兩油口可分別采取流量控制、壓力控制或流量壓力控制。正面介紹兩種簡(jiǎn)單的控制策略。?

（1）負(fù)載方向在整個(gè)工作過程中保持不變?

R901119692 DBW 10 A2-5X/315-6EG110N9K4

R901119695 LFA 40 WEMA-7X/F08/12

R901119708 ABSPERRVENTIL DN06-G 5/8 PN400

R901119772 HSZ 16 B100-3X/S050M00

R901119774 VT-SVTSY-1-1X/1-0-1-0-1/(PRUEFG.+KOFFER)

R901119779 LFA 16 DR1-7X/075V

R901119783 DBDS 10 K1X/630-590

R901119787 H-4WEH 52 HR5X/10CG24N9K4

R901119790 DBDS 10 K1X/630-525

R901119793 4WEH 16 L7X/6EG24N9EK4/B10D3

R901119878 KOLBEN M4-15/20/E130-130L50-50 110150190

R900052621電磁球閥M-3SED6UK1X/350CG24N9K4

R901119221 WEGESITZVENTIL OD.15.05.21.3A.S8.000

R901119288 M-3SED 10 CK1X/350CG24N9XNZ4

R901119296 4WS2EM10-5X/10B11T210K31CV-102

R901119343 4WRKE 32 E400L-3X/6EG24K31/A5D3M-280

R901119362 BAUSATZ CD250. 80/ 56-1140A/CADMA KOLSTG

R901119370 DBDH 10 G1X/60E

R901119376 4WH 16 D30-7X/QMAG24

R901119378 DB3U 30 H2-5X/350YU6EG24N9K4V

R901119379 4WMDAH 22 X25-7X/F6ET/B10 SO413

R901119412 DBDS 20 K1X/245E

R900459203疊加式雙單向節(jié)流閥Z2FS16-8-3X/S

R900951303齒輪泵PGH3-2X/011RE07VU2

R900533582葉片泵PV7-1X/16-30RE01MC0-08

R901102706壓力開關(guān)HED8OA-2X/100K14

R900912589插裝閥LC32A20D7X

R900052392電磁球閥M-3SED6CK1X/350CG24N9K4

R900451778單向閥S25A5.0/

1834486001放大板支架VT3002-1-2X/32F

R901119949 4WRKE 16 W6-200L-3X/6EG24EK31/A1D3V

R901119977 4WS2EM10-5X/30B11ET210K31DV

R901119985 4WH 6 E19-5X/SO869

R901119986 4WH 16 G7X/ SO82

R901120008 4WRGE 25 V1-350P-1X/315G24K31/A1M

R901120011 4WMR 10 Y3X=/V SO207

R901120014 DBAW 30 BH2-2X/250-6EG24N9K4A08E

R900020154放大板支架VT3002-1-2X/48F ? ?（VT3002-1-2X/48F)

R901094159壓力開關(guān)HED8OA-2X/100K14KW

R900418952減壓閥DR20-4-45/200YM

R901119419 SENKBREMSVENTIL CWEG-CGV-315BAR

R901119443 4WRGE 16 V1-125P-1X/315G24K31/A1M

R901119449 M-3SEW 6 C3X/420MG110XEZ2/V

R901119460 DB3U 20 H2-5X/315Y6EW230N9K4

R901119463 LFA 16 DB2-7X/200V

R901119465 SL 52 FA3-1X/V

R901119481 4WRZE 25 W8-325-7X/6EG24N9ETK31/F1M

R901119489 4WRGE 25 E1-250P-1X/315G24K31/A1M

R901119494 DBAW 15 BF2D2X/315Z6EG205N9K4A08

R901119511 4WRZE 32 E520-7X/6EG24N9EK31/F1D3V

R901119513 DB 30 G2N5X/200YU

R901119516 4WEH 22 D7X/6EG24N9ETK4/B10D3

R901119520 4WEH 22 M7X/6EG24N9EK4/B10

R901119528 SCHLAUCH AB23-14/4SP-19/M25-P25X.1800

R901119544 UPE1-1X/0,37R1,30/2A-1V+R901119539

R901119558 IH04BS 25 M200053-30/E001G24K4

R901119585 4WRZE 16 E150-7X/6EG24K31/F1M-402

R901119601 4WRZ 10 EB50-7X/6EG24N9K4/M

R901119602 4WE 6 JA6X/EG12N9K4/A12

R901119607 5-4WE 10 F3X/CG205N9K4

R901119609 M-2SEW 6 P3X/420MG24K4QMBG24

R901119614 4WE 6 X43B6X/EG24N9K4

R901119617 3WMR 6 B5X//B10

R901119619 4WE 10 C3X/CG24N9K4/T12 SO99

R901119620 4WMM 6 RB5X//B12

R901119624 4WE 6 MA6X/OFEG220N9K4

R901119628 5-4WE 10 EB3X/CG24K4QM0G24/C

R901119645 P3GF2/022+GF2/022+GF2/022RE20+L20+N20E4

R901119649 4WEH 16 E7X/6HG24N9K4/B10

R901119655 MKM 32 AZ1X/V1B5LBD11A2

R901119672 H-4WEH 10 D4X/6EG24N9TS2K4

R901119676 4WEH 32 D6X/6EG48N9K4/B12

R901119679 LFA 16 EH2-7X/CA10DQMG24FX20

R901119881 PROTOTYP VT-HACD-1-1X/V0/1-C-0

R901119884 PROTOTYP VT-HACD-DPQ-1-2X/V0/1-C-0

R901119943 4WRTE 10 V100L-4X/6EG24K31/A1V

R900500255減壓閥DR20-4-52/200YMR900423728 力士樂溢流閥DBDS6P1X/100

R900423729 力士樂溢流閥DBDS6P1X/200

R900423730 力士樂溢流閥DBDS6P1X/315

R900423732 力士樂溢流閥DBDS6P1X/50

R900423735 力士樂溢流閥DBDS8G1X/315

R900423743 力士樂溢流閥DBDS10G1X/25

R900423766 力士樂溢流閥DBD.10G1X/...

R900424082 力士樂溢流閥DBDS20K1X/315V

R900424109 力士樂溢流閥DBDH20K1X/100

R900424140 力士樂溢流閥DBDS10G1X/200

R900424147 力士樂溢流閥DBDS10K1X/100

R900424148 力士樂溢流閥DBDS10K1X/100V

R900424149 力士樂溢流閥DBDS10K1X/200

R900424150 力士樂溢流閥DBDS10K1X/315

R900424151 力士樂溢流閥DBDS10K1X/315V

R900424152 力士樂溢流閥DBDS10K1X/400

R900424153 力士樂溢流閥DBDS10K1X/50

R900424155 力士樂溢流閥DBDS10P1X/100

R900424157 力士樂溢流閥DBDS10P1X/200

R900424158 力士樂溢流閥DBDS10P1X/315

R900424159 力士樂溢流閥DBDS10P1X/315V

R900424163 力士樂溢流閥DBDS15G1X/200

R900424165 力士樂溢流閥DBDS15G1X/315

R900424171 力士樂溢流閥DBDS20G1X/100V

R900424172 力士樂溢流閥DBDS20G1X/200

R900424174 力士樂溢流閥DBDS20G1X/315

R900424179 力士樂溢流閥DBDH10G1X/400

R900424183 力士樂溢流閥DBDH10K1X/315

R900424186 力士樂溢流閥DBDH10P1X/200

R900424187 力士樂溢流閥DBDH10P1X/315

R900424189 力士樂溢流閥DBDH10G1X/315

R900424190 力士樂溢流閥DBDH10K1X/200

R900424196 力士樂溢流閥DBDH6G1X/200VT3002-2X/32D ? ? ?

VT3000-36 ? ? ? ? ??

VT-VSPA2-1-1X/T5

VT-VSPA2-50-1X/T1 ??

VT-VSPA2-50-1X/T5 ? ?

VT3006-3X ??

VT3000-3X ??

VT11118-1X ? ??

VT11075-1X ?

VT-PPV-1-1X/V0/0

VT-VSPA1-1-1X ? ? ??

VT-VSPA2-1-1X/T1 ??

VT-VSPA2-1-1X/T5 ??

VT-VSPA2-1-2X/V0/T1 ??

VT11011-1X/?

VT-PVAR2-10/0 ??

VT-PVPQ1-1X/1 ??

VT5006-1X ?

VT-VRPA2-1-1X/VO/T5 ??

VT-VRPA2-1-1X/VO/T1?

VT-VSPA2-1-2X/V0/T5 ??

VT-VRPA2-2-1X/V0/T1 ??

VT-VRPA2-2-1X/V0/T5 ??

VT-VSPA2-1-2X/V0/T1?

VT11034-1X ??

VT5035-1X ??

VT5041-2X/1 ??

VT5041-2X/3 ??

VT11025 ?

VT11024 ?

VT11006-1X/ ??

VT3024-3X?

VT3002-2X/32D ?

VT11131-1X/ ?

VT11132-1X/ ?

VT11165-1X/ ?

VT2000-5X/ ?

VT11012-1X ?

VT-HNC100-1-23/W-08-P-0

VT-PVAR2-1X/2 ?

VT-SR35?

VT-VRPA1-151-1X/V/0/0 ??

VT10468-3X/BO-RX ??

VT11015-1X/ ?

VT12302-2X/

VT-VRPA2-527-1X/V0/RTS ??

VT-VRPA2-537-1X/V0/RTS ??

VT-VRPA1-527-1X/V0/QV?

VT-VRRA1-527-2X/V0 ? ? ? ? ? ? ?

VT-VETSY-1-1X/1-2-1-1-1/ ??

VT-SR1-1X/0 ??

VT-SR2-1X/0-60 ??

VT-SR7-1X/0/VT5005-1X/

VT11010-1X/?

VT11073-1X ?

VT11031-1X/ ?

VT11030-1X ?

VT11078-2X ?

VT11004-1X/?

VT11013-1X ?

VT11021-1X/ ?

VT11007-1X/

VT11016-1X/ ?

VT-SR41-1X/1/2 ??

VT-VSPD-1-2X/V0/0-0-1 ??

VT11005-1X/ ?

VT11032-1X/ ?