发明名称 |
METHOD AND SYSTEM FOR VACUUM GENERATION |
摘要 |
Methods and systems are provided for improving the vacuum generation efficiency of an ejector coupled to in an engine system. Vacuum is generated at the ejector at a faster rate but to a lower level by opening a throttle upstream of the ejector. Vacuum is then raised to a higher level but at a slower rate by closing the throttle upstream of the ejector. |
申请公布号 |
US2014123941(A1) |
申请公布日期 |
2014.05.08 |
申请号 |
US201213670644 |
申请日期 |
2012.11.07 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
ULREY JOSEPH NORMAN;PURSIFULL ROSS DYKSTRA;CUNNINGHAM RALPH WAYNE |
分类号 |
F02D9/08 |
主分类号 |
F02D9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|