Low-Noise Leaf Blower with Low-Emission Stratified Engine 2008-32-0035
The increasing use of gasoline-operated leaf blowers in residential areas calls for quieter but still powerful blowers. To respond to this need, a systematic acoustical development for a low-noise hand-held blower was performed. Based on a partial source analysis of the predecessor model, ambitious new partial sound targets were defined for each subassembly unit. Each partial sound target was addressed separately. The low-emission stratified engine as the power source was modified accordingly to fulfil the additional acoustical requirements for the low-noise blower. Without compromising blowing power, a sound level reduction of 8 dB(A) was achieved, such that the Category I limit is met, which is the best U.S. sound classification category.
Citation: Herzog, M., Keck, U., Machens, K., Moeser, C. et al., "Low-Noise Leaf Blower with Low-Emission Stratified Engine," SAE Technical Paper 2008-32-0035, 2008, https://doi.org/10.4271/2008-32-0035. Download Citation
Author(s):
M. Herzog, U. Keck, K.-U. Machens, C. Moeser, G. Osburg
Affiliated:
ANDREAS STIHL AG&CO.KG
Pages: 7
Event:
Small Engine Technology Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Acoustics
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »