×

Self-tuning exhaust muffler

  • US 5,831,223 A
  • Filed: 09/24/1997
  • Issued: 11/03/1998
  • Est. Priority Date: 09/24/1997
  • Status: Expired due to Fees
First Claim
Patent Images

1. An exhaust muffler for a motor vehicle, comprising:

  • a) a louver tube having an intake end and an exhaust end;

    b) an outer tube concentrically arranged around said louver tube, said outer tube including a frustoconical portion and a cylindrical portion, said frustoconical portion connecting to said louver tube at said intake end;

    c) a plurality of louvers and associated louver holes in said louver tube whereby a portion of gasses entering said louver tube are scooped into said outer tube by said louvers through said louver holes;

    d) an end cap fitting into an exhaust end of said outer tube;

    wherein said end cap includesi) an exhaust exit hole in a center therein whereby gasses leaving said exhaust end of said louver tube flow through said exhaust exit hole, andii) at least one end cap hole therein whereby gasses leaving said outer tube flow through said at least one end cap hole; and

    e) a restrictor disk held against said exhaust end of said louver tube by said end cap, said restrictor disk having a central hole therein and at least one restrictor disk hole therein, whereby gasses leaving said exhaust end of said louver tube flow through said central hole and said at least one restrictor disk hole before exiting said exhaust exit hole of said end cap.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×