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:
May. 07, 2019
Filed:
Mar. 02, 2015
Cnh Industrial America Llc, New Holland, PA (US);
Paolo Ferracin, San Prospero Sul Secchia, IT;
Adriano Garramone, Lecce, IT;
Andrea Gravili, Lecce, IT;
Giuseppina Razetto, Turin, IT;
Gianpiero Negri, Mercato San Severino, IT;
Michael Read, Batavia, IL (US);
Marco Pietro Ciarrocchi, Sant'Omero, IT;
CNH Industrial America LLC, New Holland, PA (US);
Abstract
A compact wheel loader having a hydrostatic transmission and two modes of operation. In a normal mode, a demand lever is used to set the engine speed, and displacement of the swash plate of the hydraulic pump of the transmission is set by a hydraulic pilot pressure (Ps) that increases with engine speed, so that the transmission ratio automatically decreases as the engine speed increased. In a creeper mode, the engine is set to operate at a high speed to meet the demand of powered implements of the loader, and the wheel speed is controlled by the demand lever setting the transmission ratio by varying the hydraulic pilot pressure (Ps).