发明申请
- 专利标题: PRESSURE CONTROL IN LOW STATIC LEAK FUEL SYSTEM
- 专利标题(中): 低静压泄漏燃油系统的压力控制
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申请号: US12437028申请日: 2009-05-07
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公开(公告)号: US20100282212A1公开(公告)日: 2010-11-11
- 发明人: Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
- 申请人: Scott F. Shafer , Jeffrey DePayva , Daniel R. Puckett , Amy S. Johanson , Kenneth C. Adams , Benjamin R. Tower , Jason Z. Li , Jayaraman Venkataraghavan , Michael D. Gerstner , Michael C. Long
- 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: F02M69/50
- IPC分类号: F02M69/50 ; F16K31/06
摘要:
A pressure relief valve includes a valve body having a valve seat fluidly positioned between an inlet and an outlet. A valve member is movable among a first position, a second position, and a third position. The valve member is in contact with the valve seat and fluidly blocks the inlet from the outlet at the first position. At the second position of the valve member, the inlet is fluidly connected to the outlet via a small flow area. The inlet is fluidly connected to the outlet via a large flow area when the valve member is at the third position. An electrical actuator is attached to the valve body and is operably coupled to move the valve member when energized. The valve member includes an opening hydraulic surface exposed to fluid pressure in the inlet when at the first position. A spring is operably positioned to bias the valve member toward the second position when the valve member is at the third position.
公开/授权文献
- US08291889B2 Pressure control in low static leak fuel system 公开/授权日:2012-10-23