Patent · US Active

Riding lawn mower

US11622503B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Werner Ludwig · Darmstadt, DE
Christian Rohrmoser · Embach, AT

Key dates

Filing date	Jan 11, 2021
Grant date	Apr 11, 2023
Priority date	—
Expiry date	Jul 3, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2590/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.