发明申请
US20080276608A1 HYDRAULIC DRIVE SYSTEM WITH TEMPERATURE COMPENSATION FOR PRESSURE LIMIT
有权
液压驱动系统,用于压力限制的温度补偿
- 专利标题: HYDRAULIC DRIVE SYSTEM WITH TEMPERATURE COMPENSATION FOR PRESSURE LIMIT
- 专利标题(中): 液压驱动系统,用于压力限制的温度补偿
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申请号: US11747034申请日: 2007-05-10
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公开(公告)号: US20080276608A1公开(公告)日: 2008-11-13
- 发明人: Randy Anderson , Doug Gilbert
- 申请人: Randy Anderson , Doug Gilbert
- 主分类号: F16D31/02
- IPC分类号: F16D31/02 ; B60K17/356
摘要:
A hydraulic drive system for storing and releasing hydraulic fluid includes a high pressure storage device, a low pressure storage device, and a pump-motor operating at a range of pump-motor speeds for converting between hydraulic energy and mechanical energy. The pump-motor is disposed between the high pressure device and the low pressure device. In normal operation, the hydraulic drive system enters a motoring mode where hydraulic energy is released from the high pressure storage device and converted to mechanical energy using the pump-motor. It also enters a pumping mode where mechanical energy is converted into hydraulic energy. A neutral state exists where hydraulic energy is neither stored nor released from the high pressure storage device. An approach for compensating for temperature changes using varying pressure limits helps to maintain the hydraulic drive system in normal operation, thereby promoting efficiency within the hydraulic drive system.
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