博世Rexroth力士乐A10VSO71DFR1/31R-PSC62K07斜轴变量柱塞泵

力士乐液压系统按油液的循环方式，液压系统可分为开式系统和闭式系统。开式系统是指液压泵从油箱吸油，油经各种控制阀后，驱动液压执行元件，回油再经过换向阀回油箱。这种系统结构较为简单，可以发挥油箱的散热、沉淀杂质作用，但因油液常与空气接触，使空气易于渗入系统，导致机构运动不平稳等后果。开式系统油箱大，油泵自吸性能好。闭式系统中，液压泵的进油管直接与执行元件的回油管相连，工作液体在系统的管路中进行封闭循环。其结构紧凑，与空气接触机会少，空气不易渗入系统，故传动较平稳。工作机构的变速和换向靠调节泵或马达的变量机构实现，避免了开式系统换向过程中所出现的液压冲击和能量损失。但闭式系统较开式系统复杂，因无油箱，油液的散热和过滤条件较差。为补偿系统中的泄漏，通常需要一个小流量的补油泵和油箱。

a10vso28dfr1/31r-ppa12n00

a10vso28dfr1/31r-ppa12n01

a10vso28dr/31r-ppa12n00

a10vso28dfr1/31r-ppa12k25 

a10vso28dr/31r-psa12k02  

a10vso28dr/31r-ppa12k02 

a10vso28dr/31r-psc62k01

a10vs045 dflr/31r-ppa12n00 

a10vs045dfr1/31r-ppa12n00

a10vs045dr/31rppa12n00  

a10vso45dfr1/31r-ppa12

a10vso45dfr1/31r-ppa12n00-s1648

a10vso45dfr1/31r-ppa12n00

a10vso45dr/31r-ppa12

a10vso45dr/31r-ppa12n00

a10vs071dflr/31r-ppa12n00

a10vso71dfr1/31r-ppa12n00  

a10vso71dfr/31r-ppa12kb3

a10vso71dfr1/31r-ppa12n00

a10vso71dfr1/31r-vpa12n00

a10vso71dr/31r-ppa1200

a10vso71dr/31r-ppa12n00

a10vso71drs/32r-vpb22u99

a10vs0 100 dflr/31r-ppa12n00

a10vso100dfr1/31r-vpa12n00