力士樂定量內嚙合齒輪泵的特點：定排量；低噪聲；低的流量脈動；由于采用間隙密封的補償即使在低速和低粘度油液時也有高的效率；適用于廣范圍的各種粘度和轉速；所有規(guī)格可自由組合組成組合泵；能和PGF型內齒輪泵、軸向柱塞泵和葉片泵組成多聯(lián)泵
Rexroth定量內嚙合齒輪泵的工作原理：
流入和排出原理
支承在油膜軸承上的帶軸外齒輪驅動內齒輪以一定的方向轉動。轉動時，在約90 e范圍的吸油區(qū)內體積增加。產生吸力，流體進入吸油區(qū)。
月牙形的弧形元件將吸油腔和排油腔隔開。在排油腔外齒輪的齒和內齒輪齒嚙合，流體
就從排油腔排出。
軸向間隙補償
軸向補償力FA由前、后蓋間的壓力場產生，作用在排油腔內的軸向浮動板上。由于工作壓力的作用，這兩個弧形元件和壓向外齒輪的齒頂?；⌒误w和弧形支架的面積比和密封圈的位置設計得使內齒輪、弧形體和外齒輪之間達到可靠的密封。
彈性元件密封圈能保證即使在很低的壓力下這些元件間也有適當?shù)慕佑|壓力。
液*承和油膜軸承
作用在帶軸外齒輪上的力由油膜潤滑的徑向滑動軸承承受；作周在內齒輪上的力由靜*承。兩個齒輪均為漸開線式齒輪道具加工，較長的嚙合長度使泵的排量和壓力脈動較小。這使泵的運行噪聲大大降低。
德國Rexroth力士樂PGH型液壓泵是泄漏間隙補償結構的定排量內嚙合齒輪泵。它的主要組成部分有泵體，軸承，內齒輪，帶軸外齒輪，滑動軸承，前、后蓋，端蓋，安裝法蘭，和定位銷以及由弧形體支架和密封墊組成的弧形元件。
Rexroth內嚙合齒輪泵PGH型常見型號有：
R900951303 PGH3-2X/011RE07VU2 R900951301 PGH2-2X/006RE07VU2
R900932175 PGH5-2X/125RE11VE4 R900932166 PGH4-2X/080RE07VE4
R900932165 PGH4-2X/063RE07VE4 R900932159 PGH4-2X/050RE11VU2
R900932141 PGH4-2X/032RE11VU2 R900932140 PGH4-2X/025RE11VU2
R900932139 PGH4-2X/020RE11VU2 R900245596 PGH4-2X/025RE11VU2-A280B
R900204884 PGH5-2X/200RE07VE4-A388 R900064616 PGH3-1X/010LE07MU2
R900061672 PGH2-1X/006RE07ME4 R900057641 PGH5-2X/250RE07VU2-A388
R900086557 PGH5-2X/200RE07VE4 R900086556 PGH5-2X/160RE07VE4
R900086518 PGH5-2X/125RR11VU2 R900086321 PGH4-2X/040RE11VU2
R901147116 PGH5-3X/080RE11VU2 R901147115 PGH5-3X/063RE11VU2
R900571870 PGH2-1X/005LF47MK0 R900538573 PGH3-1X/016RE47MU2
R900538572 PGH3-1X/013RF47MK0 R900538571 PGH3-1X/013RE47MU2
R900538569 PGH3-1X/010RE47MU2 R900538568 PGH2-1X/008RF47MK0
R900538567 PGH2-1X/008RE47MU2 R900538566 PGH2-1X/006RE47MU2
R900537374 PGH3-1X/013RE07ME4 R900533128 PGH2-1X/005RE47MU2
R901123008 PGH4-2X/100RE07WU2 R901098317 PGH5-2X/125RR11WU2
R901097956 PGH4-2X/100LR07WU2-A456 R901089561 ABAPG-PGH2-005U2/132S-6-B0/SE
R901064895 PGH5-2X/063RE11WU2 R901062757 PGH5-2X/100RE11VU2-A445
Rexroth內嚙合齒輪泵PGH型經銷
R900245596 PGH4-2X/025RE11VU2-A280B R900204884 PGH5-2X/200RE07VE4-A388
R900064616 PGH3-1X/010LE07MU2 R900061672 PGH2-1X/006RE07ME4
R900057641 PGH5-2X/250RE07VU2-A388 R900086557 PGH5-2X/200RE07VE4
R900086556 PGH5-2X/160RE07VE4 R900086518 PGH5-2X/125RR11VU2
R900086321 PGH4-2X/040RE11VU2 R900951301 PGH2-2X/006RE07VU2
R900961549 PGH2-2X/006RR07VU2 R900961547 PGH2-2X/006LE07VU2
R900961550 PGH2-2X/006LR07VU2 R900951302 PGH2-2X/008RE07VU2
R900961551 PGH2-2X/008RR07VU2 R900961548 PGH2-2X/008LE07VU2
R900961552 PGH2-2X/008LR07VU2 R900951303 PGH3-2X/011RE07VU2
R900961553 PGH3-2X/011LE07VU2 R900961559 PGH3-2X/011LR07VU2
R900951304 PGH3-2X/013RE07VU2 R900961554 PGH3-2X/013LE07VU2
R900961560 PGH3-2X/013LR07VU2 R900951305 PGH3-2X/016RE07VU2
R900961558 PGH3-2X/016RR07VU2 R900961555 PGH3-2X/016LE07VU2
R900961561 PGH3-2X/016LR07VU2 R900932139 PGH4-2X/020RE11VU2
R900086397 PGH4-2X/020RE11VE4 R900086356 PGH4-2X/020RR11VU2
R900086338 PGH4-2X/020LE11VU2 R900086379 PGH4-2X/020LR11VU2
R900932140 PGH4-2X/025RE11VU2 R900086398 PGH4-2X/025RE11VE4
R900086357 PGH4-2X/025RR11VU2 R900086339 PGH4-2X/025LE11VU2
R900086380 PGH4-2X/025LR11VU2 R900932141 PGH4-2X/032RE11VU2
R900932161 PGH4-2X/032RE11VE4 R900086358 PGH4-2X/032RR11VU2
R900086340 PGH4-2X/032LE11VU2 R900086381 PGH4-2X/032LR11VU2
R900086321 PGH4-2X/040RE11VU2 R900932162 PGH4-2X/040RE11VE4
R900086359 PGH4-2X/040RR11VU2 R900086341 PGH4-2X/040LE11VU2
R900086382 PGH4-2X/040LR11VU2 R900932159 PGH4-2X/050RE11VU2
R900932163 PGH4-2X/050RE11VE4 R900086360 PGH4-2X/050RR11VU2
R900086342 PGH4-2X/050LE11VU2 R900086383 PGH4-2X/050LR11VU2
R900086325 PGH4-2X/063RE07VU2 R900932165 PGH4-2X/063RE07VE4
R900086362 PGH4-2X/063RR07VU2 R900086344 PGH4-2X/063LE07VU2
R900086385 PGH4-2X/063LR07VU2 R900086326 PGH4-2X/080RE07VU2
R900932166 PGH4-2X/080RE07VE4 R900086363 PGH4-2X/080RR07VU2
R900086345 PGH4-2X/080LE07VU2 R900086386 PGH4-2X/080LR07VU2
Rexroth內嚙合齒輪泵PGH型經銷
R900932160 PGH4-2X/100RE07VU2 R900983264 PGH3-1X/013RE47MU4
R900086405 PGH4-2X/100RE07VE4 R900086364 PGH4-2X/100RR07VU2
R900086346 PGH4-2X/100LE07VU2 R900086387 PGH4-2X/100LR07VU2
R900932168 PGH5-2X/063RE11VU2 R900086551 PGH5-2X/063RE11VE4
R900932172 PGH5-2X/063RR11VU2 R900086496 PGH5-2X/063LE11VU2
R900086533 PGH5-2X/063LR11VU2 R900086460 PGH5-2X/080RE11VU2
R900932173 PGH5-2X/080RE11VE4 R900086516 PGH5-2X/080RR11VU2
R900086497 PGH5-2X/080LE11VU2 R900086534 PGH5-2X/080LR11VU2
R900086461 PGH5-2X/100RE11VU2 R900932174 PGH5-2X/100RE11VE4
R900086517 PGH5-2X/100RR11VU2 R900086498 PGH5-2X/100LE11VU2
R900086535 PGH5-2X/100LR11VU2 R900932169 PGH5-2X/125RE11VU2
R900932175 PGH5-2X/125RE11VE4 R900086518 PGH5-2X/125RR11VU2
R900086499 PGH5-2X/125LE11VU2 R900086536 PGH5-2X/125LR11VU2
R900932171 PGH5-2X/160RE07VU2 R900086556 PGH5-2X/160RE07VE4
R900086520 PGH5-2X/160RR07VU2 R900086501 PGH5-2X/160LE07VU2
R900086538 PGH5-2X/160LR07VU2 R900086465 PGH5-2X/200RE07VU2
R900086557 PGH5-2X/200RE07VE4 R900086521 PGH5-2X/200RR07VU2
R900086503 PGH5-2X/200LE07VU2 R900086539 PGH5-2X/200LR07VU2
R900086466 PGH5-2X/250RE07VU2 R900932176 PGH5-2X/250RE07VE4
R900086522 PGH5-2X/250RR07VU2 R900086504 PGH5-2X/250LE07VU2
R900086540 PGH5-2X/250LR07VU2 R901147115 PGH5-3X/063RE11VU2
R901147122 PGH5-3X/063RE11VE4 R901147129 PGH5-3X/063RR11VU2
R901147116 PGH5-3X/080RE11VU2 R901147123 PGH5-3X/080RE11VE4
R901147130 PGH5-3X/080RR11VU2 R901147117 PGH5-3X/100RE11VU2
R901147124 PGH5-3X/100RE11VE4 R901147131 PGH5-3X/100RR11VU2
R901147118 PGH5-3X/125RE11VU2 R901147125 PGH5-3X/125RE11VE4
R901147132 PGH5-3X/125RR11VU2 R901147119 PGH5-3X/160RE11VU2
R901147126 PGH5-3X/160RE11VE4 R901147133 PGH5-3X/160RR11VU2
R901147120 PGH5-3X/200RE07VU2 R901147127 PGH5-3X/200RE07VE4
R901147134 PGH5-3X/200RR07VU2 R901147121 PGH5-3X/250RE07VU2
R901147128 PGH5-3X/250RE07VE4 R901147135 PGH5-3X/250RR07VU2