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:
Oct. 31, 2017
Filed:
Aug. 05, 2015
Caterpillar Inc., Peoria, IL (US);
Michael Barngrover, Brimfield, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A system for hydraulically coupled multi-variator actuation is disclosed. One system includes: a first hydraulic variator comprising: a first hydraulic pump; and a first hydraulic motor linked to the first hydraulic pump. The system may further include a second hydraulic variator comprising: a second hydraulic pump; and a second hydraulic motor linked to the second hydraulic pump. The system may further include a first actuator linked to the first hydraulic pump and configured to control a displacement of the first hydraulic pump; a second actuator linked to the second hydraulic pump and configured to control a displacement of the second hydraulic pump; a hydraulic link connecting the first actuator and the second actuator, the hydraulic link configured to facilitate a coordinated operation of the first actuator and the second actuator; a valve disposed in fluid communication with the hydraulic link connecting the first actuator and the second actuator; and a controller connected to the valve and configured to control an operation of the valve to regulate hydraulic flow in the hydraulic link.