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:
Mar. 20, 2007
Filed:
Nov. 08, 2005
Patrick Phlips, Cologne, DE;
Bernd Steiner, Bergish-Gladbach, DE;
Klemens Greiser, Langenfeld, DE;
Ulrich Kramer, Bergisch-Gladbach, DE;
Patrick Phlips, Cologne, DE;
Bernd Steiner, Bergish-Gladbach, DE;
Klemens Greiser, Langenfeld, DE;
Ulrich Kramer, Bergisch-Gladbach, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Systems and methods for controlling stopping position of a crankshaft during shutdown of a multiple cylinder internal combustion engine influence cylinder pressure independent of associated intake/exhaust valves during shutdown of the engine so the crankshaft stops in a position favorable for restarting. Embodiments include an engine having variable compression ratio cylinders with the compression ratio of the cylinders controlled to vary cylinder pressure during shutdown to control stopping position of the crankshaft, or an auxiliary control valve disposed in a cylinder wall to control pressure within the cylinders during shutdown so the crankshaft stops in a position desirable for restarting.