Muffler and engine system
AssigneeBriggs & Stratton Corporation
InventorsJason J. Raasch, Gary J. Gracyalny
Life of this patent
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Abstract
A muffler for exhaust gases of a combustion engine includes walls forming a chamber through which the exhaust gases pass, a first inlet in the walls of the chamber configured to receive the exhaust gases from an exhaust duct of the engine, a first outlet in the walls of the chamber through which the exhaust gases exit the chamber, and a conduit having a second inlet and a second outlet, wherein a substantial length of the conduit is positioned within the chamber.
Claims20
A muffler for exhaust gases of a combustion engine, comprising:
- walls forming a chamber through which the exhaust gases pass;
- a first inlet in the walls of the chamber configured to receive the exhaust gases from an exhaust duct of the engine;
- a first outlet in the walls of the chamber through which the exhaust gases exit the chamber;
- and
- a conduit having a second inlet and a second outlet, wherein a substantial length of the conduit is positioned within the chamber.
A muffler for exhaust gases of a combustion engine, comprising:
- a housing forming a chamber through which the exhaust gases pass;
- a first inlet in the housing configured to receive the exhaust gases from an exhaust duct of the engine;
- a first outlet in the housing through which the exhaust gases exit the chamber;
- and
- a conduit including a second inlet for receiving fresh air and a second outlet for introducing the fresh air to the exhaust gases, wherein a substantial length of the conduit is positioned within the chamber such that heat is transferred from the exhaust gases to the fresh air during operational use of the muffler.
A muffler for exhaust gases of a combustion engine, comprising:
- a housing forming a chamber through which the exhaust gases pass;
- a first inlet in the housing configured to receive the exhaust gases from an exhaust duct of the engine;
- a first outlet in the housing through which the exhaust gases exit the chamber;
- and
- a conduit including a second inlet for receiving fresh air and a second outlet for introducing the fresh air to the exhaust gases;
- wherein the conduit extends through the chamber such that heat is transferred from the exhaust gases to the fresh air during operational use of the muffler;
- and
- wherein the conduit forms a loop within the chamber.
Dependencies are inferred from the claim text.