Comparing with involutegearpump, the instant displacement is in direct proportion to the angular velocity of the gear and stable without pulsation.
对比渐开线齿轮泵，单圆弧齿轮泵的瞬时排量与齿轮角速度成正比，且稳定，无脉动。
2
Internal gearpump has two kinds of tooth profile namely: involute profile and cycloidal tooth profile.
内啮合齿轮泵有两种齿形即：渐开线齿形和摆线齿形。
3
The tooth profile of gearpump is involute in general. Though the involute profile is easy to design and manufacture, it also brings the inherent problem of oil trapping.