Lub impeller yog qhov tseem ceeb ntawm lub twj tso kua dej; Nws lub luag haujlwm tseem ceeb yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam, nws cov hauv paus, nws txoj haujlwm tseem ceeb yog ua haujlwm. Nws cov haujlwm tshwj xeeb yog raws li hauv qab no:

Accelerating dej ntws: Raws li lub impeller tig, cov vanes thawb cov kua tawm sab nraud, tsim cov qauv radial ntws. Ib feem ntawm lub tshuab nqus tsev nyob ze ntawm lub axis ntawm lub vanes thiab lub shroud, nqus dej rau hauv thiab ceev nws los ntawm lub zog ntawm kev sib hloov.

Kev kos duab hauv dej ntws: Kev sib hloov ntawm lub impeller tsim lub tshuab nqus tsev ntawm cov vanes thiab cov ntaub qhwv, kos cov kua rau hauv lub twj tso kua mis. Cov kua yog ces coj mus rau hauv lub impeller, qhov twg nws yog ceev thiab tom qab tso tawm.

Tshem tawm cov dej ntws: Lub impeller tso tawm cov dej ntws thiab tsim cov dej siab. Cov dej siab dua thiab cov nqi ntws feem ntau qhia tias muaj zog impeller ntau dua.