GPA1-2-2/2-4/4-4-E/EK1(2)-20-R6.3, GPA2-6-6/10-10-E/EK1(2)-20-R6.3 GPA2-16-16/GPA3-63-63-EK1(2)-20R6.3 内啮合齿轮泵是采用齿轮内啮合原理,内外齿轮节圆紧靠一边,另一边被泵盖上“月牙板”隔开。主轴上的主动内齿轮带动其中外齿轮同向转动,在进口处齿轮相互分离形成负压而吸入液体,齿轮在出口处不断嵌入啮合而将液体挤压输出。 GPA1-2-2-E-20-R6.3,GPA1-2-4-E-20-R6.3,GPA1-4-4-E-20-R6.3, GPA2-6-6-E-20-R6.3,GPA2-10-10-E-20-R6.3, GPA1-2-2-EK1(2)-20R6.3,GPA1-4-4-EK1(2)-20R6.3, GPA2-6-6-EK1(2)-20R6.3GPA2-10-10-EK1(2)-20R6.3 GPA2-16-16-EK1(2)-20R6.3,GPA3-63-63-EK1(2)-20R6.3,