齒輪脫開(kāi)側的(de)空間的(de)體積從小變(biàn)大，形成真(zhēn)空，将液體吸入(rù)，齒輪齧(niè)合側的空間(jiān)的體積從(cóng)大變小，而将液(yè)體擠入管路中(zhōng)去。吸入腔(qiāng)與排(pái)出腔是靠兩(liǎng)個齒輪的齧(niè)合線來隔(gé)開的。

齒(chǐ)輪泵的排(pái)出口(kǒu)的壓力完全(quán)取(qǔ)決于泵出處阻(zǔ)力的大小。

     要想(xiǎng)獲得(dé)大(dà)流量就(jiù)必須提高泵的(de)轉速(sù)，對(duì)于一台(tái)泵的(de)轉速，實際(jì)上是有(yǒu)限(xiàn)制的(de)，這主(zhǔ)要取決于工(gōng)藝流體，如果(guǒ)傳送(sòng)的是油類(lèi)，圓弧齒輪(lún)泵則(zé)能以很(hěn)高的速(sù)度轉(zhuǎn)動，但當流(liú)體是(shì)一種高粘(zhān)度的聚合(hé)物熔體時(shí)，這(zhè)種(zhǒng)限制(zhì)就會大(dà)幅度降低。

    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.