发明名称 |
BIDIRECTIONAL VALVED ASPIRATOR FOR SURGE CONTROL AND VACUUM GENERATION |
摘要 |
An aspirator coupled between an inlet of a compressor and an engine intake manifold may include sonic/supersonic expansion curves for both forward and reverse flow through the aspirator. Suction flow may enter a first entraining port coupling an ambient side of the aspirator with a vacuum source during reverse flow through the aspirator, whereas suction flow may enter a second entraining port coupling a manifold side of the aspirator with the vacuum source, the first entraining port counter sunk relative to a nominal slope of the aspirator to reduce flow disruption caused by the port during forward flow through the aspirator. A radial-flow aspirator shut-off valve arranged in series with the aspirator may be controlled to enable or disable motive flow through the aspirator, and motive flow may enter the valve in a direction perpendicular to a motive flow axis of the aspirator when the valve is open. |
申请公布号 |
US2015159601(A1) |
申请公布日期 |
2015.06.11 |
申请号 |
US201314102133 |
申请日期 |
2013.12.10 |
申请人 |
Ford Global Technologies, LLC |
发明人 |
Luehrsen Eric;Pursifull Ross Dykstra |
分类号 |
F02M35/10 |
主分类号 |
F02M35/10 |
代理机构 |
|
代理人 |
|
主权项 |
1. An engine system, comprising:
an aspirator coupling an inlet of a compressor with an intake manifold and comprising a first entraining port coupling an ambient side of the aspirator with a vacuum source and a second entraining port coupling a manifold side of the aspirator with the vacuum source, the first entraining port counter sunk relative to a nominal slope of the aspirator, and a radial-flow aspirator shut-off valve in series with the aspirator. |
地址 |
Dearborn MI US |