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Patent Searching and Data


Title:
ACTIVE SCAVENGE PRECHAMBER
Document Type and Number:
WIPO Patent Application WO/2014/165236
Kind Code:
A3
Abstract:
In certain embodiments with large size prechambers and/or with prechambers that have large spark-gap electrode assemblies, a poor scavenge of the crevice volume may cause eterioration of the preignition margin, which then may limit the power rating of the engine, may cause the flow velocity field of the fuel-air mixture to be excessively uneven and may result in the deterioration of the misfire limit. One or more auxiliary scavenging ports may allow admission of fuel rich mixture to the crevice volume, thereby cooling the residual gases and preventing occurrence of preignition. More organized and powerful flow velocity fields may be obtained in the spark-gap electrode assembly region. This condition may result in a significant extension of the flammability limit and may significantly improve the combustion efficiency of the prechamber.

Inventors:
SOTIROPOULOU MARIA EMMANUELLA (US)
TOZZI LUIGI P (US)
Application Number:
PCT/US2014/024904
Publication Date:
October 29, 2015
Filing Date:
March 12, 2014
Export Citation:
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Assignee:
PROMETHEUS APPLIED TECHNOLOGIES LLC (US)
International Classes:
F02B19/12
Domestic Patent References:
WO2012091739A22012-07-05
Foreign References:
US1945870A1934-02-06
US4646695A1987-03-03
US1930003A1933-10-10
Other References:
See also references of EP 2971635A4
Attorney, Agent or Firm:
WALKER, David, B. (Harrison & Walker LLP,1629 K Street NW,,Suite 30, Washington DC, US)
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