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Side branch absorber for exhaust manifold of two-stroke internal combustion engine

Patent ·
OSTI ID:1013681
A method of improving scavenging operation of a two-stroke internal combustion engine. The exhaust pressure of the engine is analyzed to determine if there is a pulsation frequency. Acoustic modeling is used to design an absorber. An appropriately designed side branch absorber may be attached to the exhaust manifold.
Research Organization:
USDOE
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-02NT41646
Assignee:
Southwest Research Institute (San Antonio, TX)
Patent Number(s):
7,866,147
Application Number:
11/541,008
OSTI ID:
1013681
Country of Publication:
United States
Language:
English

References (2)

Adaptive-Passive Noise Control with Self-Tuning Helmholtz Resonators journal April 1997
Adaptive Helmholtz resonators and passive vibration absorbers for cylinder interior noise control journal December 2005

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