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:
Apr. 15, 2014
Filed:
Mar. 19, 2008
Martin Bernhaupt, Oberalm, AT;
Martin Bernhaupt, Oberalm, AT;
Robert Bosch GmbH, Stuttgart-Feuerbach, DE;
Abstract
In a device for driving a piston pump, including at least one cam () mounted on a camshaft () and cooperating with the pump piston (), or a component arranged between the cam () and the pump piston (), to generate a reciprocating movement of the pump piston (), wherein the cam () has a cam elevation curve () with a first section for the upward stroke and a second section for the downward stroke, the cam elevation curve (), departing from a shape substantially corresponding to that of a sine wave (), is modified in a manner that, in comparison to the shape of a sine wave (), an increase in the piston acceleration occurs at the beginning of the upward stroke and a decrease of the piston deceleration occurs at the end of the upward stroke.