(RA4VTG)進口變量柱塞泵 產品特點 Product features

斜盤結構軸向柱塞變量泵，適用于閉式回路的靜液傳動  Axial piston variable displacement pump with swashplate structure is suitable for hydrostatic transmission of closed circuit

流量與驅動轉速和排量成比例可無級調節retz品牌 The flow rate is proportional to the driving speed and displacement and can be adjusted steplessly

隨著斜盤擺角度增加.流量從零到最大值  As the swashplate swing angle increases Flow from zero to maximum

當斜盤擺經過零位時. 液流方向平穩換向  When the swashplate pendulum passes the zero position The direction of liquid flow is reversed smoothly

良好適應性的多種形式控制和調節功能  Various forms of control and regulation functions with good adaptability

高壓側的兩個溢流閥保護液壓傳動元件（泵和馬達）不過載  Two overflow valves on the high-pressure side protect the hydraulic transmission elements (pump and motor) from overload

高壓溢流閥同時作為補油壓閥  The high-pressure overflow valve also acts as the oil makeup valve

內置輔助泵作為補油和控制油泵  Built in auxiliary pump is used as oil makeup and control oil pump

通過內裝的補油溢流閥限制最大補油壓力  The maximum oil replenishment pressure is limited by the built-in oil replenishment overflow valve

工作粘度范圍 Working viscosity range

為了獲得最佳效率和使用壽命，RETZ推薦工作粘度（在工作溫度下）在下列范圍內選擇∶v opt=最佳工作粘度16..36mm2/s

In order to obtain the best efficiency and service life, Retz recommends that the working viscosity (at the working temperature) be selected in the following range: V opt= the best working viscosity 16 36mm2/s

油液的過濾 Filtration of oil

液壓油過濾越干凈，油液清潔度等級越高，軸向柱塞元件的壽命越長 The cleaner the hydraulic oil is filtered, the higher the cleanliness level of the oil is, and the longer the service life of the axial piston element is

為保證軸向柱塞元件的功能，需要清潔度至少為 按ISO4406的20/18/15級最低的清潔度等級為 In order to ensure the function of the axial piston element, the cleanliness is required to be at least: according to ISO4406 level 20/18/15, the minimum cleanliness level is

液壓油處于高溫時（90℃至最高115℃），按ISO4406的19/17/14級  When the hydraulic oil is at high temperature (90 ℃ to 115 ℃ at most), it shall be subject to grade 19/17/14 of ISO4406

(RA4VTG)進口變量柱塞泵 參數值 Parameter value

額定壓力 40MPa 峰值壓力 45MPa

規格∶90 

排量mL/r：變量泵90，輔助泵（當P=2MPa）28.3  

最高轉速min:3050

最低轉速min:300

流量L/min：當 no max 持續和Vg max ：275

功率KW/:183

扭矩Nm：572