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. 08, 2013
Filed:
Jan. 20, 2010
Michael Dopona, Wartberg, AT;
Johann Neuboeck, Gunskirchen, AT;
Werner Brandstaetter, Meggenhofen, AT;
Christian Berger, Offenhausen, AT;
Roland Ennsmann, Wels, AT;
Gerhard Wiesinger, Lenzing, AT;
Stefan Leiber, Marchtrenk, AT;
Roland Spatzenegger, Bad Hall, AT;
Michael Dopona, Wartberg, AT;
Johann Neuboeck, Gunskirchen, AT;
Werner Brandstaetter, Meggenhofen, AT;
Christian Berger, Offenhausen, AT;
Roland Ennsmann, Wels, AT;
Gerhard Wiesinger, Lenzing, AT;
Stefan Leiber, Marchtrenk, AT;
Roland Spatzenegger, Bad Hall, 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 fluidly communicates with the air spring to supply air to the air spring. The air compressor is operatively connected to a rotating shaft of the engine to be selectively driven thereby. A motor is operatively connected to the air compressor to selectively drive the air compressor. A method of supplying air to the air spring of the above engine is also disclosed. A method of supplying air to an air spring of an engine having both a mechanical and an electrical air compressor is also disclosed.