LOW NOISE VENTILATOR

LOW NOISE VENTILATOR

  • CN 87,200,183 U
  • Filed: 01/10/1987
  • Issued: 10/14/1987
  • Est. Priority Date: 01/10/1987
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of low noise ventilator is made up of casing, impeller and axle, it is characterized in that the radially direct of blade, extends to the inboard or the outside of impeller inlet end face always, and the part of blade is submerged between forward and backward dish, and another part exposes at impeller inlet.

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