DC brushless miniature circulating pump

DC brushless miniature circulating pump

  • CN 101,709,717 A
  • Filed: 12/14/2009
  • Published: 05/19/2010
  • Est. Priority Date: 12/14/2009
  • Status: Active Application
First Claim
Patent Images

1. DC brushless miniature circulating pump, comprise pump case, rotor, stator and impeller, rotor is sleeved on the rotor shaft, it is characterized in that:

  • described rotor shaft surface is provided with nano oxidized zirconium coating, rotor surface is provided with plastic layer, rotor and impeller are integrated, and are provided with the gap of 0.8-1.0mm between each impeller blade root and the impeller sleeve.

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