?高壓泵的容積效率在80%以上，壓力損失僅為2%~3%液壓泵是一種能量傳遞和轉(zhuǎn)換的機(jī)器，它是一種以液體為介質(zhì)的輸送機(jī)它使流體機(jī)械能有效地進(jìn)行壓力和流量特性曲線改變 1、液壓泵的結(jié)構(gòu)組成 液壓泵由主油缸、傳動(dòng)系統(tǒng)、密封裝置、液壓缸、柱塞泵等部分組成。
主油缸的作用是使壓力油在活塞下行過程中形成容積運(yùn)動(dòng)，從而實(shí)現(xiàn)液體流體在缸內(nèi)的單向流動(dòng)它由主油壓腔、溢流腔、油液換向器、過濾器、油口、濾油網(wǎng)等組成"油室"指泵出口與閥芯，它是密封元件，是與油路直接連通起來的結(jié)構(gòu)體，以保證潤滑油能夠順利地進(jìn)入泵腔。
根據(jù)潤滑油粘度等級(jí)的不同，又分為無級(jí)變速油、低粘度油、中溫油及低速油路等各種類型的油其中又分為無內(nèi)燃機(jī)油和有潤滑油內(nèi)燃機(jī)油以及普通汽油液壓泵是以壓縮氣體作為動(dòng)力源的機(jī)械裝置根據(jù)所輸送液體以及流體速度及流量來確定工作壓力和揚(yáng)程。
壓力越大則輸出壓力越大；通常為5-10MPa;最大為30MPa;最小值不大于0.1MPa 2、液壓泵工作原理和用途 液壓泵由進(jìn)油口和出油口組成，其作用是將液壓油或潤滑油）從進(jìn)油口注入液壓缸，內(nèi)的油液在缸內(nèi)產(chǎn)生軸向力推動(dòng)活塞桿向前運(yùn)動(dòng)，同時(shí)在腔內(nèi)產(chǎn)生反作用力帶動(dòng)活塞桿作往復(fù)運(yùn)動(dòng)，通過活塞桿推動(dòng)液體作動(dòng)力而實(shí)現(xiàn)液體壓力及流量變換輸出能量的一種機(jī)械傳動(dòng)裝置。
液壓泵能傳遞液體動(dòng)能，在有動(dòng)力帶動(dòng)下通過壓桿使活塞桿向后運(yùn)動(dòng)而實(shí)現(xiàn)液體在缸內(nèi)的往復(fù)運(yùn)動(dòng)從而達(dá)到推動(dòng)液體的目的，當(dāng)液體進(jìn)入液壓缸后，泵體開始對(duì)其進(jìn)行回路調(diào)節(jié)以達(dá)到液體的流動(dòng)狀態(tài)液體介質(zhì)在流經(jīng)活塞時(shí)沿缸壁做圓周運(yùn)動(dòng)，使泵內(nèi)壓力急劇升高，形成正壓，經(jīng)液體出口時(shí)帶動(dòng)活塞作往復(fù)運(yùn)動(dòng)，由于活塞受力而產(chǎn)生反作用力使活塞桿向前推動(dòng)液體向前運(yùn)動(dòng)從而使壓力增高，使液體達(dá)到壓力和流量變化曲線并形成曲線運(yùn)動(dòng)即壓力損失越大。
液壓泵按性能又可分為油泵和液壓泵兩大類 90-R-055-KP-1-AB-60-L-3-S1-C-03-GBA-35-35-24 90R055KP1AB60L3S1C03GBA353524 90-R-055-KP-1-AB-60-L-3-S1-C-03-GBA-42-42-24 90R055KP1AB60L3S1C03GBA424224 90-R-055-KP-1-AB-60-L-3-S1-D-03-GBA-42-42-24 90R055KP1AB60L3S1D03GBA424224 90-R-055-KP-1-AB-60-P-3-C6-C-03-GBA-35-35-24 90R055KP1AB60P3C6C03GBA353524 90-R-055-KP-1-AB-60-R-3-S1-C-03-GBA-42-42-24 90R055KP1AB60R3S1C03GBA424224 90-R-055-KP-1-AB-60-S-3-S1-C-00-GBA-17-17-20 90R055KP1AB60S3S1C00GBA171720 90-R-055-KP-1-AB-60-S-3-S1-C-03-GBA-26-26-24 90R055KP1AB60S3S1C03GBA262624 90-R-055-KP-1-AB-60-S-3-S1-D-00-GBA-17-17-20 90R055KP1AB60S3S1D00GBA171720 90-R-055-KP-1-AB-80-P-3-S1-C-00-GBA-42-42-24 90R055KP1AB80P3S1C00GBA424224 90-R-055-KP-1-AB-80-P-3-S1-C-03-GBA-20-20-24 90R055KP1AB80P3S1C03GBA202024 90-R-055-KP-1-AB-80-P-3-S1-D-00-GBA-26-26-24 90R055KP1AB80P3S1D00GBA262624 90-R-055-KP-1-AB-80-P-3-S1-D-03-EBC-32-32-24 90R055KP1AB80P3S1D03EBC323224 90-R-055-KP-1-AB-80-P-3-S1-D-03-GBA-29-29-24 90R055KP1AB80P3S1D03GBA292924 90-R-055-KP-1-AB-80-P-3-S1-D-03-GBA-42-42-24 90R055KP1AB80P3S1D03GBA424224 90-R-055-KP-1-AB-80-P-4-S1-C-03-GBA-35-35-24 90R055KP1AB80P4S1C03GBA353524 90-R-055-KP-1-AB-80-R-4-S1-D-03-GBA-26-26-24 90R055KP1AB80R4S1D03GBA262624 90-R-055-KP-1-AB-80-S-3-S1-C-03-GBA-35-35-24 90R055KP1AB80S3S1C03GBA353524 90-R-055-KP-1-BB-60-R-3-S1-C-03-GBA-38-38-24 90R055KP1BB60R3S1C03GBA383824 90-R-055-KP-1-BB-60-R-4-S1-C-03-GBA-35-35-24 90R055KP1BB60R4S1C03GBA353524 90-R-055-KP-1-BB-60-S-3-S1-C-03-GBA-23-23-20 90R055KP1BB60S3S1C03GBA232320 90-R-055-KP-1-BB-80-R-3-S1-C-03-EBC-35-35-24 90R055KP1BB80R3S1C03EBC353524 90-R-055-KP-1-BC-60-L-3-S1-C-03-GBA-35-35-24 90R055KP1BC60L3S1C03GBA353524 90-R-055-KP-1-BC-60-P-3-C6-C-03-GBA-35-35-28 90R055KP1BC60P3C6C03GBA353528 90-R-055-KP-1-BC-60-P-3-C6-C-03-GBA-42-42-24 90R055KP1BC60P3C6C03GBA424224 90-R-055-KP-1-BC-60-P-3-S1-C-03-GBA-32-32-24 90R055KP1BC60P3S1C03GBA323224 90-R-055-KP-1-BC-60-P-3-S1-D-03-GBA-35-35-26 90R055KP1BC60P3S1D03GBA353526 90-R-055-KP-1-BC-60-P-4-S1-C-03-GBA-23-23-24 90R055KP1BC60P4S1C03GBA232324 90-R-055-KP-1-BC-60-R-3-S1-C-03-GBA-29-29-20 90R055KP1BC60R3S1C03GBA292920 90-R-055-KP-1-BC-60-S-3-S1-C-03-GBA-20-20-24 90R055KP1BC60S3S1C03GBA202024 90-R-055-KP-1-BC-60-S-3-S1-D-05-GBA-42-42-24 90R055KP1BC60S3S1D05GBA424224 90-R-055-KP-1-BC-60-S-4-C6-C-03-EBC-35-35-24 90R055KP1BC60S4C6C03EBC353524 90-R-055-KP-1-BC-80-L-4-S1-C-03-GBA-29-29-24 90R055KP1BC80L4S1C03GBA292924 90-R-055-KP-1-BC-80-P-3-S1-C-00-GBA-38-38-24 90R055KP1BC80P3S1C00GBA383824 90-R-055-KP-1-BC-80-P-3-S1-C-03-GBA-29-29-24 90R055KP1BC80P3S1C03GBA292924 90-R-055-KP-1-BC-80-P-3-S1-C-03-GBA-35-35-24 90R055KP1BC80P3S1C03GBA353524 90-R-055-KP-1-BC-80-P-3-S1-D-00-GBA-40-40-24 90R055KP1BC80P3S1D00GBA404024 90-R-055-KP-1-BC-80-P-3-S1-D-03-GBA-32-32-24 90R055KP1BC80P3S1D03GBA323224 90-R-055-KP-1-BC-80-P-3-S1-D-03-GBA-42-42-24 90R055KP1BC80P3S1D03GBA424224 90-R-055-KP-1-BC-80-P-4-S1-C-03-GBA-23-23-24 90R055KP1BC80P4S1C03GBA232324 90-R-055-KP-1-BC-80-P-4-S1-C-03-GBA-35-35-20 90R055KP1BC80P4S1C03GBA353520 90-R-055-KP-1-BC-80-P-4-S1-C-03-GBA-38-38-24 90R055KP1BC80P4S1C03GBA383824 90-R-055-KP-1-BC-80-P-4-S1-C-03-GBA-42-42-24 90R055KP1BC80P4S1C03GBA424224 90-R-055-KP-1-BC-80-R-3-S1-C-03-GBA-23-23-24 90R055KP1BC80R3S1C03GBA232324 90-R-055-KP-1-BC-80-R-4-S1-C-00-GBA-35-35-30 90R055KP1BC80R4S1C00GBA353530 90-R-055-KP-1-BC-80-R-4-S1-D-03-GBA-21-21-24 90R055KP1BC80R4S1D03GBA212124 90-R-055-KP-1-BC-80-R-4-S1-D-03-GBA-32-32-28 90R055KP1BC80R4S1D03GBA323228 90-R-055-KP-1-BC-80-S-3-C6-C-03-GBA-38-38-24 90R055KP1BC80S3C6C03GBA383824 90-R-055-KP-1-CD-60-P-3-C6-D-03-EBC-42-42-24 90R055KP1CD60P3C6D03EBC424224 90-R-055-KP-1-CD-60-P-3-C6-D-03-GBA-42-42-24 90R055KP1CD60P3C6D03GBA424224 90-R-055-KP-1-CD-60-P-3-S1-C-03-GBA-35-35-24 90R055KP1CD60P3S1C03GBA353524 90-R-055-KP-1-CD-60-P-4-S1-C-00-EBC-35-35-24 90R055KP1CD60P4S1C00EBC353524 90-R-055-KP-1-CD-60-P-4-S1-C-03-GBA-23-23-24 90R055KP1CD60P4S1C03GBA232324 90-R-055-KP-1-CD-60-P-4-S1-C-03-GBA-32-32-24 90R055KP1CD60P4S1C03GBA323224 90-R-055-KP-1-CD-60-R-3-S1-D-03-GBA-38-38-24 90R055KP1CD60R3S1D03GBA383824 90-R-055-KP-1-CD-60-S-3-S1-D-05-GBA-42-42-24 90R055KP1CD60S3S1D05GBA424224 90-R-055-KP-1-CD-80-L-3-S1-C-03-GBA-29-29-24 90R055KP1CD80L3S1C03GBA292924 90-R-055-KP-1-CD-80-L-3-S1-C-03-GBA-32-32-24 90R055KP1CD80L3S1C03GBA323224 90-R-055-KP-1-CD-80-L-4-S1-C-03-GBA-26-26-24 90R055KP1CD80L4S1C03GBA262624 90-R-055-KP-1-CD-80-P-3-C6-C-00-GBA-32-32-24 90R055KP1CD80P3C6C00GBA323224 90-R-055-KP-1-CD-80-P-3-C6-C-03-GBA-35-35-24 90R055KP1CD80P3C6C03GBA353524 90-R-055-KP-1-CD-80-P-3-C6-D-03-GBA-42-42-24 90R055KP1CD80P3C6D03GBA424224 90-R-055-KP-1-CD-80-P-3-S1-C-00-GBA-29-17-24 90R055KP1CD80P3S1C00GBA291724 90-R-055-KP-1-CD-80-P-3-S1-C-00-GBA-40-40-24 90R055KP1CD80P3S1C00GBA404024 90-R-055-KP-1-CD-80-P-3-S1-C-00-GBA-42-42-24 90R055KP1CD80P3S1C00GBA424224 90-R-055-KP-1-CD-80-P-3-S1-C-03-GBA-14-35-24 90R055KP1CD80P3S1C03GBA143524 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90-R-055-KP-1-CD-80-R-3-S1-C-03-GBA-29-35-24 90R055KP1CD80R3S1C03GBA293524。
