Tail pipe of internal combustion engine

Tail pipe of internal combustion engine

CN
  • CN 203,769,906 U
  • Filed: 04/18/2014
  • Issued: 08/13/2014
  • Est. Priority Date: 04/18/2014
  • Status: Active Grant
First Claim
Patent Images

1. a tailpipe for internal-combustion engine, is characterized in that:

  • comprise front pipe, middle pipe, shell and four constituent elements of screw assembly, front pipe box is connected to end the welded seal of baffler, pipe during front pipe rear end connects,Middle pipe divides two sections of connected front and back, and from large to small, middle pipe back segment diameter changes from small to big middle pipe leading portion diameter, on the tube wall of middle pipe back segment, has through hole,Shell can adopt bilayer or single layer structure, be socketed in middle pipe outside, shell comprises connected successively airscoop shroud, necking down pipe portion, flaring pipe portion and tail end receipts limit portion, the front end of airscoop shroud is inlet end, and point diameter is large, and diameter diminishes gradually from front to back, necking down pipe portion is that diameter is managed uniformly, the diameter of flaring pipe portion front end is little, and diameter becomes greatly gradually from front to back, and it is that diameter is managed uniformly that tail end is received limit portion;

    Screw assembly is located at middle pipe afterbody, comprise hollow tube, outer expander and volution blade, hollow tube is that diameter is managed uniformly, and hollow tube afterbody connects outer expander, and outer expander point diameter is little, diameter becomes large gradually from front to back, multiple volution blades are distributed in hollow tube periphery, and its one end is fixedly connected on hollow tube periphery, and the other end is fixedly connected on outer casing inner wall, the front end of volution blade connects with middle pipe back segment, and volution blade is provided with through hole.

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