公开(公告)号：US10104826B2

公开(公告)日：2018-10-23

申请号：US15010301

申请日：2016-01-29

Applicant: CNH Industrial America, LLC

Inventor： Jonathan Lacher ,  Michael Freisleban ,  Jerry L. Brinkley

IPC: F15B13/04 ,  A01B63/32 ,  F15B11/08 ,  F15B13/043 ,  A01B63/00

Abstract: In one aspect, a system for controlling the supply of hydraulic fluid to an implement may include a pump, a control valve coupled to the pump and first and second fluid lines provided in flow communication with output ports of the control valve. The system may also include a pressure control valve configured to regulate a pressure of the hydraulic fluid being supplied to the control valve such that the hydraulic fluid is supplied to the control valve at a first pressure for raising at least one ground-engaging component of the implement and a second pressure for lowering the ground-engaging component(s). Moreover, the system may include a bypass line in fluid communication with the pressure control valve such that fluid diverted through the bypass line actuates the pressure control valve to adjust the fluid pressure of the hydraulic fluid supplied to the control valve between the first and second pressures.

公开(公告)号：US20170215329A1

公开(公告)日：2017-08-03

申请号：US15010301

申请日：2016-01-29

Applicant: CNH Industrial America, LLC

Inventor： Jonathan Lacher ,  Michael Freisleban ,  Jerry L. Brinkley

IPC: A01B63/32 ,  A01B63/00 ,  F15B13/043 ,  F15B11/08 ,  F15B13/04

CPC classification number: A01B63/32 ,  A01B63/008 ,  A01B63/28 ,  F15B11/028 ,  F15B11/08 ,  F15B13/0402 ,  F15B13/0433 ,  F15B2211/50554 ,  F15B2211/5151 ,  F15B2211/528 ,  F15B2211/6355 ,  F15B2211/76

Abstract: In one aspect, a system for controlling the supply of hydraulic fluid to an implement may include a pump, a control valve coupled to the pump and first and second fluid lines provided in flow communication with output ports of the control valve. The system may also include a pressure control valve configured to regulate a pressure of the hydraulic fluid being supplied to the control valve such that the hydraulic fluid is supplied to the control valve at a first pressure for raising at least one ground-engaging component of the implement and a second pressure for lowering the ground-engaging component(s). Moreover, the system may include a bypass line in fluid communication with the pressure control valve such that fluid diverted through the bypass line actuates the pressure control valve to adjust the fluid pressure of the hydraulic fluid supplied to the control valve between the first and second pressures.

公开(公告)号：US20170191506A1

公开(公告)日：2017-07-06

申请号：US14985647

申请日：2015-12-31

Applicant: CNH Industrial America, LLC

Inventor： Jonathan Lacher ,  Michael Freisleban ,  Jerry L. Brinkley

IPC: F15B13/04 ,  F15B13/044 ,  A01B63/10 ,  F15B11/08

CPC classification number: F15B11/028 ,  A01B63/10 ,  A01B63/1013 ,  A01C7/205 ,  F15B11/02 ,  F15B11/05 ,  F15B11/055 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/0417 ,  F15B13/044 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/25 ,  F15B2211/253 ,  F15B2211/3127 ,  F15B2211/3144 ,  F15B2211/329 ,  F15B2211/50554 ,  F15B2211/7128 ,  F15B2211/7741

Abstract: In one aspect, a system for controlling the supply of hydraulic fluid to an implement of a work vehicle may generally include a pump, a control valve coupled to the pump and first and second fluid lines provided in flow communication with output ports of the control valve. The system may also include a pressure control valve provided in flow communication with the second fluid line that is configured to regulate a fluid pressure of the hydraulic fluid being supplied to a hydraulic cylinder of the implement. Additionally, the system may include a bypass fluid line configured to provide a flow path for hydraulic fluid between the pump and the second fluid line that is independent of the control valve and a load sensing line configured to provide an indication of the fluid pressure of the hydraulic fluid being supplied to the hydraulic cylinder.