A4VSO180DR/30R-PPB13NOO
A4VSO180LR2N/30R-VPB13N00
CBHz-F32-ALHR
CB40/2040-BFPL
E-A4VS040DR/10R-PPB13NOO
A4VSO125LR2N/22R-PPB13N00
A4VG125EP1D1/32L-NZF02N00
A4VG125HDDT1/32L-PZF02F001D
A4VG71HD3D1
A4VS0125DR30R-PPB13N00
A4VSG250HD1U/30R-PPB10K269N
A4VSO250DR/30R-PPB13N00
由于柱塞和柱塞孔都是圆形零件,加工时可以达到很高的精度配合,因此具有容积效率高,运转平稳,流量均匀性好,噪声低,工作压力高等优点,但对液压油的污染较,结构较复杂,造价较高。
A11VO130DRL/10L-NTC12N00
A10V028DFLR/31R-PKC62NOO
A10VSO-140DR/31R-PPB12N00
A10VSO71DFLR/31R-PPA12N00
A11VO190LR3/11L-NTC12N00
A11VO75LG2/10R-NPG12N00
A10VS0140DFLR/31R-PSD62N00
A10VSO140DR/31R-PPB12N00
A10VSO10DR/52L-VPA14N00
A10VO28DRG/31R-VPA12N00
柱塞泵的泵油机构包括两套精密偶件:柱塞(plunger)+柱塞套(barrel)构成柱塞偶件(plunger and barrel assembly)、出油阀(delivery valve)和出油阀座(delivery valve seat)构成出油阀偶件(delivery valve assembly
柱塞和柱塞套是一对精密偶件,经配对研磨后不能互换,要求有高的精度和光洁度和好的耐磨性,其径向间隙为0.002~0.003mm柱塞头部圆柱面上切有斜槽,并通过径向孔、轴向孔与顶部相通,其目的是改变循环供油量;柱塞制有进、回油孔,均与泵上低压油腔相通,柱塞套装入泵上体后,应用定位螺钉定位。柱塞头部斜槽的位置不同,改变供油量的也不同。
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