发明申请
- 专利标题: PILOT PUMP SOURCED PEAK SHAVING FOR HYBRID HYDRAULIC CIRCUITS
- 专利标题(中): 混合泵液压泵的泵浦峰值冲击
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申请号: US13764024申请日: 2013-02-11
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公开(公告)号: US20140223893A1公开(公告)日: 2014-08-14
- 发明人: Jeremy Todd Peterson , Jeffrey L. Kuehn
- 申请人: CATERPILLAR INC.
- 申请人地址: US IL Peoria
- 专利权人: CATERPILLAR INC.
- 当前专利权人: CATERPILLAR INC.
- 当前专利权人地址: US IL Peoria
- 主分类号: F15B1/02
- IPC分类号: F15B1/02
摘要:
A system includes a pilot pump with an output that may be directed to a pilot circuit by way of a selector valve. The selector valve is shifted between a first position providing communication between the pump and the pilot circuit to a second position providing communication between the pilot pump and the hybrid circuit when pressure in the pilot circuit reaches a predetermined level. That pressure is used to hydraulically shift the selector valve to redirect flow from the pilot pump to the hybrid circuit. Both the pilot circuit and the hybrid circuit include accumulators for storing pressurized hydraulic fluid. The fluid stored in the pilot circuit is used for pilot functionality while the fluid stored in the hybrid circuit is used to power any one or more of a variety of power consuming components.
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