齒輪脫(tuō)開側的空間的(de)體(tǐ)積從(cóng)小變(biàn)大，形成真(zhēn)空，将(jiāng)液體吸入，齒輪齧合側的空間的體(tǐ)積從大變(biàn)小，而将液(yè)體擠入管路中(zhōng)去。吸入腔與排(pái)出腔是(shì)靠兩(liǎng)個齒輪(lún)的齧合線(xiàn)來隔開(kāi)的(de)。

齒(chǐ)輪泵的排出口的壓力(lì)完全取(qǔ)決于泵(bèng)出(chū)處阻(zǔ)力的(de)大(dà)小。

     要想(xiǎng)獲得大流量就(jiù)必須提高泵的(de)轉速(sù)，對于一台泵的(de)轉速，實際(jì)上是有(yǒu)限制的(de)，這主(zhǔ)要取決于工藝(yì)流體，如果(guǒ)傳送(sòng)的是油(yóu)類，圓弧齒輪(lún)泵則(zé)能以(yǐ)很(hěn)高的速(sù)度轉動(dòng)，但(dàn)當流體是(shì)一種(zhǒng)高粘(zhān)度的聚合物熔(róng)體時(shí)，這種限制(zhì)就會大幅(fú)度降(jiàng)低。

    2cy gear pump are mainly gear, shaft, pump body, pump cover, bearing and shaft end seal, etc.gear with double circular arc tooth sine curve.it is the most prominent advantage compared with involute gear tooth profile in gear meshing process there is no relative sliding, so the tooth surface abrasion, stable running, without fluid phenomenon, low noise, long life and high efficiency.the pump out of the bondage of traditional design, making the circular arc gear pump in the design, production and use of entering a new field.gear side space volume from small greaten, forming a vacuum, the liquid suction, the side of the gear mesh from large to small volume of the space, and the liquid into line.suction chamber and discharge chamber are separated by two gears meshing line.its structure is composed of a pair of meshing gears and the pump shell, the pump every turn a turn, the amount of discharge is the same.with continuous rotation of the drive shaft, the pump discharge fluid is constantly.pump flow is directly related to the rotational speed of the pump.the gear pump outlet pressure depends on the size of the source resistance pump.have to rise to get big flow pump rotation speed, for a pump rotation speed, is actually limited, which mainly depends on process flow, if transfer is oil, the circular arc gear pump can at high rotation speed, but when the fluid is a kind of high viscosity polymer melt, the restrictions could be greatly reduced.