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:
Feb. 19, 2013
Filed:
Jan. 20, 2010
Michael Dopona, Wartberg, AT;
Johann Neuboeck, Gunskirchen, AT;
Christian Berger, Offenhausen, AT;
Roland Ennsmann, Wels, AT;
Stefan Leiber, Marchtrenk, AT;
Gerd Ohrnberger, Rutzenmoos, AT;
Rene Vormuendl, Sierning, AT;
Michael Dopona, Wartberg, AT;
Johann Neuboeck, Gunskirchen, AT;
Christian Berger, Offenhausen, AT;
Roland Ennsmann, Wels, AT;
Stefan Leiber, Marchtrenk, AT;
Gerd Ohrnberger, Rutzenmoos, AT;
Rene Vormuendl, Sierning, AT;
BRP-Powertrain GmbH & Co. KG, Gunskirchen, AT;
Abstract
An internal combustion engine has at least one intake valve and at least one exhaust valve. A first spring biases the at least one intake valve to a closed position. A second spring biases the at least one exhaust valve to a closed position. At least one of the first and second springs is an air spring. An air compressor is disposed inside the cylinder head and fluidly communicates with the air spring to supply air to the air spring. The air compressor being disposed between a crankshaft and a cylinder head cover in a direction parallel to a cylinder axis is also disclosed.