- 专利标题: Systems and methods for depressurizing a fuel tank
-
申请号: US14681831申请日: 2015-04-08
-
公开(公告)号: US09709006B2公开(公告)日: 2017-07-18
- 发明人: Mark W. Peters , Bryan Michael Bolger , Dennis Seung-Man Yang , Russell Randall Pearce
- 申请人: Ford Global Technologies, LLC
- 申请人地址: US MI Dearborn
- 专利权人: Ford Global Technologies, LLC
- 当前专利权人: Ford Global Technologies, LLC
- 当前专利权人地址: US MI Dearborn
- 代理机构: McCoy Russell LLP
- 代理商 James Dottavio
- 主分类号: F02M25/08
- IPC分类号: F02M25/08 ; F16K31/02 ; B60K6/20 ; B60K15/035 ; B60K15/03
摘要:
Methods and systems are provided for depressurizing a fuel tank prior to refueling the fuel tank. One example method includes adjusting a latchable refueling valve to a latched open position to enable vapor flow from the fuel tank to a vapor canister at a first rate, and responsive to fuel tank pressure being higher than a first pressure threshold after a pre-determined duration at the latched open position, modifying the latchable refueling valve to an unlatched open position. The unlatched open position of the latchable refueling valve enables a second flow rate for fuel vapors, the second flow rate higher than the first flow rate at the latched open position.
公开/授权文献
- US20160298579A1 SYSTEMS AND METHODS FOR DEPRESSURIZING A FUEL TANK 公开/授权日:2016-10-13
信息查询