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. 04, 2014
Filed:
Mar. 10, 2011
Jesper Frickmann, Raleigh, NC (US);
Jesper Frickmann, Raleigh, NC (US);
Jesper Frickmann, Raleigh, NC (US);
Abstract
The apparatus includes a driving shaft with a first gear wheel, a frame able to rotate within limits about the driving shaft, a servo mechanism for controlling the angular position of the frame, a valve-lifting crankshaft with a second gear wheel supported by the frame, a rocker cam assembly, a connecting rod pivotally connected to the valve-lifting crankshaft and the rocker cam assembly, a cam follower operatively connected to a charge exchange valve, and a spring for urging the cam follower against a cam lobe. The engine rotates the driving shaft. The first gear wheel rotates the second gearwheel and the valve-lifting crankshaft. The connecting rod transmits motion from the valve-lifting crankshaft to the rocker cam assembly. Stroke, lifting duration, and phase can be controlled by the angular position of the frame.