Inlet design for a pump assembly

Inlet design for a pump assembly

  • CN 101,772,642 B
  • Filed: 06/30/2008
  • Issued: 06/17/2015
  • Est. Priority Date: 07/02/2007
  • Status: Active Grant
First Claim
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1. an automobile secondary air pump assembly, comprising:

  • A housing (14) of described automobile secondary air pump assembly (12), this housing (14) comprises an intake section (24), this intake section limits an inlet channel (28), and described housing defines annular pass;

    The axle that an impeller (34) and this impeller rotate thereon, this impeller is positioned in this housing (14);

    AndWherein, this inlet channel (28) leads to this impeller (34) and guides the fluid flowing being substantially perpendicular to a spin axis (38) of this impeller (34), and wherein said impeller guides air away from the rotating center of described impeller and towards described annular pass, wherein this impeller (34) comprises multiple blade (44), these blade shrouds are around the circumference of this impeller (34), these blades (44) comprise a face (48) separately, this face is axially directed relative to this impeller (34), and wherein this inlet channel (28) is constructed and arranged to guide generally in the fluid flowing of contiguous this inlet channel (28) at these faces (48) place of these blades (44), wherein, from the central authorities that flowing center line (B) of this inlet channel (28) fluid is out these faces (48) of these blades (44) pointing to contiguous this inlet channel (28) generally.

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