Invention Grant
- Patent Title: Displacement-controlled hydraulic system for multi-function machines
- Patent Title (中): 用于多功能机器的位移控制液压系统
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Application No.: US12612969Application Date: 2009-11-05
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Publication No.: US08191290B2Publication Date: 2012-06-05
- Inventor: Edward C. Hughes, IV , Christopher Alan Williamson , Joshua D. Zimmerman , Monika Marianne Ivantysynova
- Applicant: Edward C. Hughes, IV , Christopher Alan Williamson , Joshua D. Zimmerman , Monika Marianne Ivantysynova
- Applicant Address: US IN West Lafayette
- Assignee: Purdue Research Foundation
- Current Assignee: Purdue Research Foundation
- Current Assignee Address: US IN West Lafayette
- Agency: Hartman & Hartman
- Agent Gary M. Hartman; Domenica N. S. Hartman
- Main IPC: E02F3/43
- IPC: E02F3/43

Abstract:
A displacement-controlled hydraulic system for installation on a multi-function machine, and multi-function machines equipped with the hydraulic system and having devices for propelling the machine, at least a first implement, and multiple actuators that perform multiple functions of the machine. The multiple actuators include first actuators that control the first implement and second actuators that control the propelling devices. The hydraulic system comprises multiple pumps for controlling the first actuators and optionally the second actuators, and valves that enable at least one of the pumps to sequentially control two of the multiple actuators and a corresponding two functions of the multiple functions performed thereby. None of the pumps sequentially controls the second actuators in combination with any of the first actuators.
Public/Granted literature
- US20100162593A1 DISPLACEMENT-CONTROLLED HYDRAULIC SYSTEM FOR MULTI-FUNCTION MACHINES Public/Granted day:2010-07-01
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