力士乐定量内啮合齿轮泵的特点：定排量；低噪声；低的流量脉动；由于采用间隙密封的补偿即使在低速和低粘度油液时也有高的效率；适用于广范围的各种粘度和转速；所有规格可自由组合组成组合泵；能和PGF型内齿轮泵、轴向柱塞泵和叶片泵组成多联泵
Rexroth定量内啮合齿轮泵的工作原理：
流入和排出原理
支承在油膜轴承上的带轴外齿轮驱动内齿轮以一定的方向转动。转动时，在约90 e范围的吸油区内体积增加。产生吸力，流体进入吸油区。
月牙形的弧形元件将吸油腔和排油腔隔开。在排油腔外齿轮的齿和内齿轮齿啮合，流体
就从排油腔排出。
轴向间隙补偿
轴向补偿力FA由前、后盖间的压力场产生，作用在排油腔内的轴向浮动板上。由于工作压力的作用，这两个弧形元件和压向外齿轮的齿顶。弧形体和弧形支架的面积比和密封圈的位置设计得使内齿轮、弧形体和外齿轮之间达到可靠的密封。
弹性元件密封圈能保证即使在很低的压力下这些元件间也有适当的接触压力。
液*承和油膜轴承
作用在带轴外齿轮上的力由油膜润滑的径向滑动轴承承受；作周在内齿轮上的力由静*承。两个齿轮均为渐开线式齿轮道具加工，较长的啮合长度使泵的排量和压力脉动较小。这使泵的运行噪声大大降低。
德国Rexroth力士乐PGH型液压泵是泄漏间隙补偿结构的定排量内啮合齿轮泵。它的主要组成部分有泵体，轴承，内齿轮，带轴外齿轮，滑动轴承，前、后盖，端盖，安装法兰，和定位销以及由弧形体支架和密封垫组成的弧形元件。
Rexroth内啮合齿轮泵PGH型常见型号有：
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内啮合齿轮泵PGH型经销
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内啮合齿轮泵PGH型经销
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
