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US 11,622,503 B2Granted
Riding lawn mower
AssigneeAndreas Stihl AG & Co. KG
InventorsWerner Ludwig, Christian Rohrmoser
Life of this patent
Estimating the term…
Abstract
A riding lawn mower has an internal combustion engine and a muffler with a first housing. The internal combustion engine is connected to the muffler to supply exhaust gases originating from the internal combustion engine to the first housing of the muffler for noise damping of the exhaust gases. A second housing is provided that thermally insulates the first housing of the muffler. The second housing at least partially encloses the first housing of the muffler. The second housing has an exterior side with an emissivity of greater than 0.8.
Claims19
A riding lawn mower comprising:
- an internal combustion engine;
- a muffler comprising a first housing, wherein the internal combustion engine is connected to the muffler to supply exhaust gases originating from the internal combustion engine to the first housing of the muffler for noise damping of the exhaust gases;
- a second housing configured to thermally insulate the first housing of the muffler, wherein the second housing at least partially encloses the first housing of the muffler, and wherein the second housing comprises an exterior side comprising an emissivity of greater than 0.8;
- wherein the second housing comprises an inner side facing the first housing of the muffler and wherein the inner side comprises an emissivity of less than 0.25.
1 more element
A riding lawn mower comprising:
- an internal combustion engine;
- a muffler comprising a first housing, wherein the internal combustion engine is connected to the muffler to supply exhaust gases originating from the internal combustion engine to the first housing of the muffler for noise damping of the exhaust gases;
- a second housing configured to thermally insulate the first housing of the muffler, wherein the second housing at least partially encloses the first housing of the muffler, and wherein the second housing comprises an exterior side comprising an emissivity of greater than 0.8, wherein a wall of the second housing is comprised of aluminum;
- wherein the wall of the second housing comprises an inner side without a coating, wherein the inner side is facing the first housing of the muffler.
1 more element
Dependencies are inferred from the claim text.