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:
Oct. 14, 2014
Filed:
Apr. 28, 2011
Jan Krüger, Neuhausen, DE;
Rolf Jebasinski, Fillderstadt, DE;
Jan Krüger, Neuhausen, DE;
Rolf Jebasinski, Fillderstadt, DE;
J. Eberspaecher GmbH & Co. KG, Esslingen, DE;
Abstract
The present invention relates to a method for operating a piston engine, more preferably of a motor vehicle, with a fresh air system for feeding fresh air to cylinders of the piston engine and with an exhaust system for discharging exhaust gas from the cylinders, wherein during a gas exchange by a positive pressure wave on the fresh air side the charging of the respective cylinder with fresh air and/or by a negative pressure wave on the exhaust gas side the discharging of exhaust gas from the respective cylinder is supported. An increased variability is obtained if the respective pressure wave is generated by at least one electroacoustic converter.