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:
Jul. 02, 1996
Filed:
Nov. 25, 1994
John G Berger, Landisville, PA (US);
Edward H Priepke, Lancaster, PA (US);
Peter J Torland, Mt. Joy, PA (US);
New Holland North America, Inc., New Holland, PA (US);
Abstract
A front end loader driven by a diesel engine is prevented from starting in reverse after stalling under load conditions which might place a backload on the engine. A speed sensor senses engine speed and the output of the sensor is applied to a programmable controller that controls a fuel flow solenoid. The controller compares the engine speed with a first reference speed in approximately the range of the idle speed of the engine until the engine speed is greater than the first reference speed. The controller then compares the engine speed with a second reference speed value less than the engine idle speed. If the engine speed drops below the second reference speed value, indicating an impending engine stall, the microprocessor controls the fuel flow solenoid to stop flow of fuel to the engine so that the engine stops. Since the engine is without fuel it cannot restart even if backloaded. A method of operating the diesel engine is also disclosed.