发明名称 |
HEATED HOT-FILM AIR-FLOW SENSOR |
摘要 |
<p>To determine air mass flows, especially for controlling internal combustion engines, a hot-film air-mass sensor is provided, which may be used especially for sensing air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor frame and a sensor diaphragm having at least one heating element and at least two temperature sensors. Furthermore, the hot-film air-mass sensor has a chip carrier for mounting the sensor chip, as well as at least one additional heating element. The sensor chip is able to be heated up using the at least one additional heating element, which is inserted into the chip carrier. Compared to the usual devices, the hot-film air-mass sensor has a lower susceptibility to contamination, especially by oil films.</p> |
申请公布号 |
EP1872093(B1) |
申请公布日期 |
2012.12.19 |
申请号 |
EP20060724872 |
申请日期 |
2006.02.23 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
RENNINGER, ERHARD;HUEFTLE, GERHARD;BRUECKNER, JOERG;OPITZ, BERNHARD;KUENZL, BERND;KONZELMANN, UWE;WAGNER, ULRICH;MARBERG, HENNING;GMELIN, CHRISTOPH;ILLIAN, MATTHIAS |
分类号 |
F02D41/18;G01F1/684;G01F1/692;G01F1/698;G01F15/12 |
主分类号 |
F02D41/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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