Invention Grant
- Patent Title: System for coordinating the direction of travel of a hydraulic machine with the operator's position
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Application No.: US15316454Application Date: 2015-06-04
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Publication No.: US10344454B2Publication Date: 2019-07-09
- Inventor: Francesco Chioccola
- Applicant: CNH Industrial America LLC
- Applicant Address: US PA New Holland
- Assignee: CNH Industrial America LLC
- Current Assignee: CNH Industrial America LLC
- Current Assignee Address: US PA New Holland
- Agent Peter K. Zacharias; Patrick M. Sheldrake
- Priority: ITMO2014A0165 20140606
- International Application: PCT/EP2015/062521 WO 20150604
- International Announcement: WO2015/185699 WO 20151210
- Main IPC: E02F9/20
- IPC: E02F9/20 ; E02F9/22 ; E02F9/02 ; F15B9/17 ; F15B13/02 ; F15B13/07

Abstract:
A system for automatically coordinating a direction of travel with a position of a turret rotatably mounted on an undercarriage of a hydraulic machine including a hydraulic transmission circuit for connecting a main pump to a bi-directional hydraulic travel motor. The circuit includes a travel control distributor able to vary a driving direction of the motor. The system includes a second hydraulic circuit disposed downstream of a pilot pump providing a pilot pressure. The second circuit includes: a valve controller for controlling a direction of travel, activatable by the operator and able to switch the control distributor by sending different command signals; and a reversing valve, interposed between the valve controller and the control distributor. The system further includes a coordination circuit able to switch or maintain the reversing valve according to the position of the turret and to the command signals.
Public/Granted literature
- US20170152645A1 System for Coordinating the Direction of Travel of a Hydraulic Machine with the Operator's Position Public/Granted day:2017-06-01
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