The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1988
Filed:
Jun. 30, 1986
Applicant:
Inventors:
Andrew A Pouring, Edgewater, MD (US);
Daniel G Ferer, Harwood, MD (US);
Assignee:
Sonex Research, Inc., Annapolis, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ; F02B / ;
U.S. Cl.
CPC ...
123 26 ; 123219 ; 123259 ; 123289 ; 123291 ; 123295 ; 123430 ; 123667 ;
Abstract
An internal combustion engine includes a moving piston within a combustion chamber that is temporarily divided into two zones when the piston is at and near its minumum volume position. Fuel is confined to a first zone where the fuel is ignited to generate combustion wave energy that drives gas within the second zone in Helmholtz resonance through a restricted passageway. Air from the second zone is periodically expanded into the first zone through the passageway to improve the combustion process in the first zone before the piston moves substantially away from its minimum volume position.