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1. 发明授权

US5167147A Air-measuring device 失效
标题翻译：空气测量装置
公开(公告)号：US5167147A
公开(公告)日：1992-12-01
申请号：US656079
申请日：1991-03-01
申请人： Klaus-Juergen Peters , Walter Bosch , Hans-Peter Stiefel , Karl Gmelin , Kurt Frank , Thomas Schwegel
发明人： Klaus-Juergen Peters , Walter Bosch , Hans-Peter Stiefel , Karl Gmelin , Kurt Frank , Thomas Schwegel
IPC分类号： G01F1/68 , F02D41/18 , G01F1/684 , G01F5/00
CPC分类号： G01F1/6842 , F02D41/187 , G01F5/00
摘要： An air-measuring device for measuring the air mass taken in by an internal combustion engine which has a main flow channel, having a venturi section, and a temperature-dependent measuring resistor arranged in a bypass channel, the bypass channel opening upstream and downstream of the smallest flow cross-section of the venturi section in the direction of flow, in order to reduce the noise component in the measurement signal of the measuring resistor a channel region with an inlet and outlet opening is formed in the bypass channel, which channel region accommodates the measuring resistor in a central portion. The channel region is designed in such a way that the ratio of the flow cross-section of the central portion to the smallest cross-section of the venturi section is from 1:8 to 1:25 and the ratio of the cross-section to the cross-section of the inlet and outlet opening is in each case from 1:1 to 1:2.
摘要翻译： PCT No.PCT / DE90 / 00439 Sec。 371 1991年3月1日 102（e）1991年3月1日PCT申请1990年6月8日PCT公布。公开号WO91 / 00987 日本1991年1月24日。一种用于测量由内燃机吸入的空气质量的空气测量装置，所述内燃机具有主流道，具有文氏管部分和布置在旁通通道中的温度测量电阻器，在文丘里管部分的流动方向的最小流动横截面的上游和下游旁通道旁通道，以便减小测量电阻器的测量信号中的噪声分量，其中形成具有入口和出口的通道区域旁路通道，该通道区域在中央部分容纳测量电阻器。通道区域的设计使得中心部分的流动横截面与文丘里管部分的最小横截面之比为1:8至1:25，横截面积与入口和出口的横截面在每种情况下为1:1至1:2。

2. 发明授权

US5315870A Housing for an air flow rate meter 失效
标题翻译：空气流量计的外壳
公开(公告)号：US5315870A
公开(公告)日：1994-05-31
申请号：US936962
申请日：1992-08-28
申请人： Thomas Schwegel , Hans-Peter Stiefel
发明人： Thomas Schwegel , Hans-Peter Stiefel
IPC分类号： F02D45/00 , G01F1/44 , G01F1/68 , G01F1/684 , G01F5/00 , G01F15/18
CPC分类号： G01F1/6842 , G01F1/44 , G01F5/00
摘要： A housing for an air flow rate meter is embodied by two housing parts joined together by a detent connection, so that the assembly is reduced to a single operation, and screws and nuts are omitted. The housing for air flow rate meters is especially suitable for fuel injection systems of mixture-compressing internal combustion engines with externally supplied ignition, or air-compressing, self-igniting internal combustion engines.
摘要翻译：用于空气流量计的壳体由通过定位连接连接在一起的两个壳体部件实现，使得组件被简化为单个操作，并且省略了螺钉和螺母。用于空气流量计的外壳特别适用于混合压缩内燃机的燃料喷射系统，其具有外部提供的点火或空气压缩，自燃内燃机。

3. 发明授权

US5301547A Air flow rate meter 失效
标题翻译：空气流量计
公开(公告)号：US5301547A
公开(公告)日：1994-04-12
申请号：US948550
申请日：1992-09-23
申请人： Bernd Osswald , Thomas Schwegel , Hans-Peter Stiefel
发明人： Bernd Osswald , Thomas Schwegel , Hans-Peter Stiefel
IPC分类号： F02D45/00 , G01F1/68 , G01F1/684 , G01F5/00 , G01F15/00 , G01M19/00 , G01P5/00
CPC分类号： G01F1/6842 , G01F15/00 , G01F5/00
摘要： A flow rate meter for determining the mass or flow rate of flowing air, having a temperature-dependent measuring resistor disposed in an air bypass conduit. The air bypass conduit has a convergent portion in the region of the measuring resistor in which the air flow is accelerated. As a result of the air flow the effects of any air disturbances upon the measuring element are reduced. The following geometric relationships are advantageous: l.sub.1 /l.sub.s >3.8, l.sub.1/2 >1.5, l.sub.1 /1.sub.3 >2.0, l.sub.1/4 >9.0, l.sub.5 /l.sub.s >1.5, l.sub.5 /l.sub.6 =1.7 to 1.9, b.sub.1 /b.sub.s >40.0, b.sub.1 /b.sub.2 >2.0, l.sub.1 /b.sub.1 >3.5, and l.sub.5 /b.sub.3 =5.5 to 6. The air flow rate meter is especially suitable for determining the mass or flow rate of aspirated air in mixture-compressing engines with externally supplied ignition as well as air-compressing, self-igniting engines.
摘要翻译：用于确定流动空气的质量或流速的流量计，其具有设置在空气旁路导管中的温度依赖测量电阻器。空气旁路管道在测量电阻器的区域中具有收敛部分，其中气流被加速。作为空气流动的结果，减少了对测量元件的任何空气干扰的影响。以下几何关系是有利的：l1 / ls> 3.8，l1 / 2> 1.5，l1 / 13> 2.0，l1 / 4> 9.0，l5 / ls> 1.5,15 / 16 = 1.7〜1.9，b1 / bs> 40.0 ，b1 / b2> 2.0，l1 / b1> 3.5和l5 / b3 = 5.5〜6.空气流量计特别适用于确定混合压缩发动机中吸入空气的质量或流量，外部提供的点火为以及空气压缩，自燃引擎。

4. 发明授权

US5119672A Air flow rate meter 失效
标题翻译：空气流量计
公开(公告)号：US5119672A
公开(公告)日：1992-06-09
申请号：US645319
申请日：1991-01-24
申请人： Martin Pfeiffer , Thomas Schwegel
发明人： Martin Pfeiffer , Thomas Schwegel
IPC分类号： G01F1/68 , F02D41/18 , G01F1/684 , G01F5/00
CPC分类号： F02D41/187 , G01F1/6842 , G01F5/00
摘要： An air flow rate meter, in particular for measuring the mass of air aspirated by an internal combustion engine, has a main flow conduit with a venturi-like flow portion and a bypass conduit, which discharges with an inlet and outlet opening above and below the venturi-like flow portion, respectively. A temperature-dependent measuring resistor is disposed in the bypass conduit. To avoid impairment of the measured value signal by an increase in the noise component caused by turbulence of the air upstream of the venturi-like flow portion, which unavoidably occurs upon deflection of the air flow direction, the inlet opening of the bypass conduit is shifted in the flow direction upstream of the deflection of the air flow, into a region of quasi-laminar flow with a constant pressure profile.
摘要翻译：特别是用于测量由内燃机吸入的空气的质量的空气流率计具有一个具有文丘里状流动部分和旁路管道的主流动管道，其排出口具有上方和下方的入口和出口文丘里状流动部分。在旁路管道中设置温度依赖的测量电阻。为了避免由于空气流动方向偏转时不可避免地发生的文丘里状流动部分上游的空气的湍流引起的噪声分量的增加，测量值信号受到损害，旁路管道的入口开口偏移在空气流的偏转上游的流动方向进入具有恒定压力分布的准层流区域。

5. 发明授权

US5319971A Measuring element for determining a flow rate of a flowing medium 失效
标题翻译：用于确定流动介质的流量的测量元件
公开(公告)号：US5319971A
公开(公告)日：1994-06-14
申请号：US910374
申请日：1992-07-08
申请人： Bernd Osswald , Thomas Schwegel , Martin Winter
发明人： Bernd Osswald , Thomas Schwegel , Martin Winter
IPC分类号： G01F1/68 , G01F1/692 , G01P5/10 , G01P5/12
CPC分类号： G01P5/10 , G01F1/692
摘要： A measuring element which has been lengthening in the flow direction to provide a detachment zone which is shifted downstream from the region of the measuring resistor, so that end flow disturbances no longer affect the region of the measuring resistor, and adulteration of the measurement values is prevented. The measuring element is especially suitable for determining the throughput or flow rate of the aspirated air of mixture-compressing internal combustion engines.
摘要翻译：一种在流动方向上延长的测量元件，以提供从测量电阻器的区域下游偏移的分离区域，使得末端流动干扰不再影响测量电阻器的区域，并且测量值的掺杂是防止了测量元件特别适用于确定混合压缩内燃机的抽吸空气的通过量或流量。

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