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

Abstract

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.

Inventors:
 [1];  [2];  [3]
  1. San Antonio, TX
  2. (San Antonio, TX)
  3. Laramie, WY
Issue Date:
Research Org.:
US Department of Energy (USDOE), Washington DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1013681
Patent Number(s):
7866147
Application Number:
11/541,008
Assignee:
Southwest Research Institute (San Antonio, TX)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
DOE Contract Number:  
FC26-02NT41646
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Harris, Ralph E, Broerman, III, Eugene L., and Bourn, Gary D. Side branch absorber for exhaust manifold of two-stroke internal combustion engine. United States: N. p., 2011. Web.
Harris, Ralph E, Broerman, III, Eugene L., & Bourn, Gary D. Side branch absorber for exhaust manifold of two-stroke internal combustion engine. United States.
Harris, Ralph E, Broerman, III, Eugene L., and Bourn, Gary D. Tue . "Side branch absorber for exhaust manifold of two-stroke internal combustion engine". United States. https://www.osti.gov/servlets/purl/1013681.
@article{osti_1013681,
title = {Side branch absorber for exhaust manifold of two-stroke internal combustion engine},
author = {Harris, Ralph E and Broerman, III, Eugene L. and Bourn, Gary D},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {1}
}

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Works referenced in this record:

Adaptive Helmholtz resonators and passive vibration absorbers for cylinder interior noise control
journal, December 2005


Adaptive-Passive Noise Control with Self-Tuning Helmholtz Resonators
journal, April 1997