Invention Grant
- Patent Title: Method and apparatus for controlling a variable displacement hydraulic pump
- Patent Title (中): 用于控制可变排量液压泵的方法和装置
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Application No.: US12573949Application Date: 2009-10-06
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Publication No.: US08596057B2Publication Date: 2013-12-03
- Inventor: Hongliu Du
- Applicant: Hongliu Du
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Miller, Matthias & Hull
- Main IPC: F15B13/044
- IPC: F15B13/044 ; E02F9/22
Abstract:
A control system for a variable displacement hydraulic pump is disclosed. The control system utilizes two flow control valves to provide a flow of hydraulic fluid to two control actuators. The control actuators create opposing moments on the pump swashplate to control swashplate orientation and pump displacement.
Public/Granted literature
- US20110079006A1 METHOD AND APPARATUS FOR CONTROLLING A VARIABLE DISPLACEMENT HYDRAULIC PUMP Public/Granted day:2011-04-07
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