德國(guó)Rexroth力士樂(lè)油泵原理及型號(hào)
Rexroth力士樂(lè)油泵有三大類：Rexroth力士樂(lè)柱塞泵，Rexroth力士樂(lè)葉片泵，Rexroth力士樂(lè)齒輪泵，REXROTH力士樂(lè)柱塞泵根據(jù)傾斜元件的不同，有斜盤式和斜軸式兩種。斜盤式是斜盤相對(duì)回轉(zhuǎn)的缸體有一傾斜角度，而引起柱塞在泵缸中往復(fù)運(yùn)動(dòng)。傳動(dòng)軸軸線和缸體軸線是*的。這種結(jié)構(gòu)較簡(jiǎn)單，轉(zhuǎn)速較高，但工作條件要求高，柱塞端部與斜盤的接觸部往往是薄弱環(huán)節(jié)，REXROTH葉片泵只不過(guò)是離心泵的一種具體應(yīng)用的泵而命名。實(shí)質(zhì)上砂泵只是一個(gè)籠統(tǒng)的叫法，力士樂(lè)齒輪泵是采用齒輪內(nèi)嚙合原理，內(nèi)外齒輪節(jié)圓緊靠一邊，另一邊被泵蓋上“月牙板”隔開(kāi)。主軸上的主動(dòng)內(nèi)齒輪帶動(dòng)其中外齒輪同向轉(zhuǎn)動(dòng)，在進(jìn)口處齒輪相互分離形成負(fù)壓而吸入液體 。

德國(guó)Rexroth力士樂(lè)油泵原理及型號(hào)

原理：
Rexroth Rexroth pump suction and pressure oil from the plunger in a reciprocating movement of the plunger jacket to complete. When the plunger is located in the lower position, the plunger sleeve two hole is opened, the plunger comprising a pump body cavity and oil passages communicating the fuel chamber quickly filled with oil. When the top of the cam roller to the roller body, the plunger will rise. Room from the plunger begins to move up to the front end surface of the plunger hole is blocked up. In this period of time, due to the movement of the plunger, the fuel is extruded from the oil chamber, the flow of oil passage. So this is called pre-travel lift. When the plunger block the hole, began to pressure oil process. Plunger up, a sharp increase in oil pressure oil chamber. When the pressure exceeds the force of the spring and the upper part of the hydraulic valve, the valve on top of the open, the fuel is pressed into the tubing to the injector. The plunger sleeve into the hole on the piston end face is compley obscured by the time the oil is called theoretical starting point. Continued upward movement of the plunger, the oil has been continued, and the process continues until the oil pressure spiral bevel on the plunger so that the plunger sleeve back hole open until the time when a hole is opened, the high-pressure oil from the oil chamber via longitudinal grooves on the plunger and plunger sleeve back hole back into the pump body oil passage. At this point the barrels of oil hydraulic chamber decreases rapidly, the oil valve springs and hydraulic pressure tubing role falling back seat, immediay stop the injector fuel injection. In this case, although the plunger continues upward, but the supply has been terminated. Put back the plunger hole opened by the plunger hypotenuse moment called theory supply end. Throughout the course of the upward movement of the plunger, but the middle section of the trip is the oil pressure process, this trip is called the effective stroke of the plunger

油泵部分型號(hào)：
R900065487 A10VSO18DFR1/31R-PPA12N00SO108
R900522401 A10VSO28DFR1/31R-PPA12N00
R900522402 A10VSO71DFR1/31R-PPA12N00 
R900230411 A10VSO71DFR1/31R-PPA12N00SO135 
R900573819 A10VSO71DFR1/31R-PPA12N00SO169 
R910922744 A A10VSO100 DFR1/31R-PPA12N00 
R910945178 A A10VSO 18 DFR1/31R-PPA12N00 
R910910590 A A10VSO 28 DFR1/31R-PPA12N00
R910946322 A A10VSO 28 DFR1/31R-PPA12N00-SO410 
R910908725 A A10VSO 45 DFR1/31R-PPA12N00 
R902433715 A A10VSO 45 DFR1/31R-PPA12N00-SO277
R910944440 A A10VSO 71 DFR1/31R-PPA12N00
R910948148 A A10VSO 71 DFR1/31R-PPA12N00-SO13 
R910920752 AE A10VSO100 DFR1/31R-PPA12N00