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:
Nov. 04, 2003
Filed:
Sep. 20, 2002
Alois Fuerhapter, Graz, AT;
AVL List GmbH, Graz, AT;
Abstract
The invention relates to an internal combustion engine run on Otto fuel which may be compression ignition operated in a first operational range (HCCI) and spark ignition operated in a second operational range (SI), with means for adjusting valve timing of at least one intake valve ( ) and of at least one exhaust valve ( ), with at least one ignition equipment ( ) and at least one direct injection equipment ( ) in each cylinder ( ). To permit in the easiest possible way compression ignition and spark ignition operation on Otto fuel, there is provided at least one intake camshaft ( ) for actuating the intake valves ( ) and at least one exhaust camshaft ( ) for actuating the exhaust valves ( ), that at least one intake valve ( ) in each cylinder ( ) is movable between a first and a second lift position by a device for changing the valve lift ( ), and that at least one exhaust valve ( ) is actuatable by a residual gas recirculation system ( ) during the intake lift.