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威格士3520V-25A9/30A9/35A9/38A9-1AA-22R葉片泵外形尺寸相對小，這些代號業(yè)經(jīng)證實能為所列產(chǎn)品 ( 無論哪家制造商的 ) 提供長而***的使用壽命。液壓系統(tǒng)中的油液起著流體傳動、元件潤滑和冷卻的多重功能。它們在液壓系統(tǒng)中的關(guān)鍵作用是必須滿足工作條件和***元件的壽命。液壓系統(tǒng)對***的石油基液壓油的基本要求是：1. 足夠的抗磨添加劑2. 在工作溫度下有正確的黏度3. 充分的防腐和防氧化能力從---廠商處得到***油液提供這些性能。兩種***的油液滿足現(xiàn)代液壓系統(tǒng)的要求：·抗磨型液壓油，根據(jù) astm-d-2882 的泵磨損試驗。·汽車曲軸油箱，按照 sae j183 jun89標(biāo)記 "sc"，"sd"，"se"，"sf" 或 "sg"。有關(guān)正確的黏度和正確選擇液壓系統(tǒng)油液的進(jìn)一步資料，參考樣本 694。

2520V-21A9-1BC-22R	2525V-21A21-1BD-22R	2525V-10A12-1DD-22R	3525V-25A10-1BD-22R
2520V-10A11-1BC-22R	2525V-10A10-1CA-22R	2525V-12A12-1DD-22R	3525V-30A10-1BD-22R
2520V-12A11-1BC-22R	2525V-12A10-1CA-22R	2525V-14A12-1DD-22R	3525V-35A10-1BD-22R
2520V-14A11-1BC-22R	2525V-14A10-1CA-22R	2525V-17A12-1DD-22R	3525V-38A10-1BD-22R
2520V-17A11-1BC-22R	2525V-17A10-1CA-22R	2525V-21A12-1DD-22R	3525V-25A12-1BD-22R
2520V-21A11-1BC-22R	2525V-21A10-1CA-22R	2525V-10A14-1DD-22R	3525V-30A12-1BD-22R
2520V-10A12-1BC-22R	2525V-10A12-1CA-22R	2525V-12A14-1DD-22R	3525V-35A12-1BD-22R
2520V-12A12-1BC-22R	2525V-12A12-1CA-22R	2525V-14A14-1DD-22R	3525V-38A12-1BD-22R
2520V-14A12-1BC-22R	2525V-14A12-1CA-22R	2525V-17A14-1DD-22R	3525V-25A14-1BD-22R
2520V-17A12-1BC-22R	2525V-17A12-1CA-22R	2525V-21A14-1DD-22R	3525V-30A14-1BD-22R
2520V-21A12-1BC-22R	2525V-21A12-1CA-22R	2525V-10A17-1DD-22R	3525V-35A14-1BD-22R
2520V-10A2-1BD-22R	2525V-10A14-1CA-22R	2525V-12A17-1DD-22R	3525V-38A14-1BD-22R
2520V-12A2-1BD-22R	2525V-12A14-1CA-22R	2525V-14A17-1DD-22R	3525V-25A17-1BD-22R
2520V-14A2-1BD-22R	2525V-14A14-1CA-22R	2525V-17A17-1DD-22R	3525V-30A17-1BD-22R

威格士3520V-25A9/30A9/35A9/38A9-1AA-22R葉片泵外形尺寸相對小，在葉片、轉(zhuǎn)子、定子與配流盤之間構(gòu)成若干密封空間。當(dāng)葉片從小半徑曲線段向大半徑曲線滑動時，葉片外伸,這時所構(gòu)成的密封容積由小變大，形成部分真空，油液便經(jīng)吸油窗口吸入;而處于從大半徑曲線段向小半徑曲線滑動的葉片縮回，所構(gòu)成的密封容積由大變小，其中的油液受到擠壓，經(jīng)過壓油窗口壓出這種葉片泵每轉(zhuǎn)-一周，每個密封容腔完成兩次吸、壓油過程，故這種泵稱為雙作用葉片泵。同時，泵中兩吸油區(qū)和兩壓油區(qū)各自對稱，使作用在轉(zhuǎn)子.上的徑向液壓力互相平衡，所以這種泵又被稱為平衡式葉片泵或雙作用卸荷式葉片泵。這種泵的排量不可調(diào)，因此它是定量泵。2.雙作用葉片泵排量和流量圖可知，泵軸轉(zhuǎn)-轉(zhuǎn)時，從吸油窗口流向壓油窗口的液體體積為大半徑為r，小半徑為r,寬度為b的圓環(huán)的體積。因為是雙作用泵，所以雙作用葉片泵的排量為葉片體積對排量無影響。因為在壓油腔，葉片縮回排出的液體體積補(bǔ)償了葉片在壓油腔所占的體積。

2520V-17A2-1BD-22R	2525V-17A14-1CA-22R	2525V-21A17-1DD-22R	3525V-35A17-1BD-22R
2520V-21A2-1BD-22R	2525V-21A14-1CA-22R	2525V-10A21-1DD-22R	3525V-38A17-1BD-22R
2520V-10A5-1BD-22R	2525V-10A17-1CA-22R	2525V-12A21-1DD-22R	3525V-25A21-1BD-22R
2520V-12A5-1BD-22R	2525V-12A17-1CA-22R	2525V-14A21-1DD-22R	3525V-30A21-1BD-22R
2520V-14A5-1BD-22R	2525V-14A17-1CA-22R	2525V-17A21-1DD-22R	3525V-35A21-1BD-22R
2520V-17A5-1BD-22R	2525V-17A17-1CA-22R	2525V-21A21-1DD-22R	3525V-38A21-1BD-22R
2520V-21A5-1BD-22R	2525V-21A17-1CA-22R	2525V-21A14-1DA-22R	3525V-25A10-1CA-22R
2520V-10A8-1BD-22R	2525V-10A21-1CA-22R	2525V-10A17-1DA-22R	3525V-30A10-1CA-22R
2520V-12A8-1BD-22R	2525V-12A21-1CA-22R	2525V-12A17-1DA-22R	3525V-35A10-1CA-22R
2520V-14A8-1BD-22R	2525V-14A21-1CA-22R	2525V-14A17-1DA-22R	3525V-38A10-1CA-22R
2520V-17A8-1BD-22R	2525V-17A21-1CA-22R	2525V-17A17-1DA-22R	3525V-25A12-1CA-22R
2520V-21A8-1BD-22R	2525V-21A21-1CA-22R	2525V-21A17-1DA-22R	3525V-30A12-1CA-22R