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RU98104424A - DEVICE FOR MEASURING FLOW RATE OF A FLUID - Google Patents

DEVICE FOR MEASURING FLOW RATE OF A FLUID

Info

Publication number
RU98104424A
RU98104424A RU98104424/28A RU98104424A RU98104424A RU 98104424 A RU98104424 A RU 98104424A RU 98104424/28 A RU98104424/28 A RU 98104424/28A RU 98104424 A RU98104424 A RU 98104424A RU 98104424 A RU98104424 A RU 98104424A
Authority
RU
Russia
Prior art keywords
section
flow
channel
measuring
measuring channel
Prior art date
Application number
RU98104424/28A
Other languages
Russian (ru)
Other versions
RU2174673C2 (en
Inventor
Шталь Аксель
Мюллер Вольфганг
Концельманн Уве
Original Assignee
Роберт Бош Гмбх
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19623334A external-priority patent/DE19623334A1/en
Application filed by Роберт Бош Гмбх filed Critical Роберт Бош Гмбх
Publication of RU98104424A publication Critical patent/RU98104424A/en
Application granted granted Critical
Publication of RU2174673C2 publication Critical patent/RU2174673C2/en

Links

Claims (10)

1. Устройство для измерения расхода потока текучей среды, в частности впускаемого воздуха двигателей внутреннего сгорания, с обтекаемым текучей средой термозависимым измерительным элементом, расположенным в предусмотренном в устройстве измерительном канале, проходящем от впускного отверстия до выпускного отверстия, к которому примыкает первый участок изменяющего направление потока канала, в который среда втекает из выпускного отверстия и отклоняется граничной поверхностью первого участка во второй участок изменяющего направление потока канала, отличающееся тем. что граничная поверхность (45) первого участка (32) изменяющего направление потока канала (31) лежит в проекции выпускного отверстия (36) в направлении (29) течения потока на противолежащую стенку первого участка (32) и выполнена наклонной к направлению (29) течению потока в измерительном канале (30).1. A device for measuring the flow rate of a fluid medium, in particular the intake air of internal combustion engines, with a thermally dependent measuring element in a fluid stream located in a measuring channel provided in the device, passing from the inlet to the outlet, to which the first section of the direction-changing flow is adjacent the channel into which the medium flows from the outlet and is deflected by the boundary surface of the first section into the second direction-changing section otok channel, wherein. that the boundary surface (45) of the first section (32) changing the direction of flow of the channel (31) lies in the projection of the outlet (36) in the direction (29) of the flow on the opposite wall of the first section (32) and is made inclined to the direction (29) of the flow flow in the measuring channel (30). 2. Устройство по п. 1, отличающееся тем, что граничная поверхность (45) имеет глубину tr и перпендикулярную ей ширину br, которая приблизительно соответствует ширине b впускного отверстия (35) измерительного канала (30). 2. The device according to claim 1, characterized in that the boundary surface (45) has a depth tr and a width br perpendicular to it, which approximately corresponds to the width b of the inlet (35) of the measuring channel (30). 3. Устройство по п. 1 или 2, отличающееся тем. что угол наклона α, заключенный между граничной поверхностью (45) и направлением (29) течения потока в измерительном канале (30), составляет приблизительно от 30 до 60°. 3. The device according to p. 1 or 2, characterized in that. that the angle of inclination α enclosed between the boundary surface (45) and the direction (29) of the flow in the measuring channel (30) is approximately 30 to 60 °. 4. Устройство по п. 3, отличающееся тем. что угол наклона α составляет приблизительно 45°. 4. The device according to p. 3, characterized in that. that the angle of inclination α is approximately 45 °. 5. Устройство по п. 1, отличающееся тем, что ширина br граничной поверхности (45) составляет не менее 2/3 от ширины b измерительного канала (30). 5. The device according to claim 1, characterized in that the width br of the boundary surface (45) is at least 2/3 of the width b of the measuring channel (30). 6. Устройство по п. 1, отличающееся тем, что граничная поверхность (45) имеет ширину br и перпендикулярную ей глубину tr, которая приблизительно соответствует глубине t измерительного канала (30) на входе впускного отверстия (35). 6. The device according to claim 1, characterized in that the boundary surface (45) has a width br and a depth tr perpendicular to it, which approximately corresponds to the depth t of the measuring channel (30) at the inlet inlet (35). 7. Устройство по п. 1, отличающееся тем, что в направлении (29) течения потока к первому участку (32) изменяющего направление потока канала (31) примыкает второй участок (33) и в первом участке (32) или во втором участке (33) предусмотрено по меньшей мере одно окно (55), которое обеспечивает сообщение со средой, обтекающей устройство (1). 7. The device according to claim 1, characterized in that in the direction (29) of the flow of the stream, the second section (33) adjoins the first section (33) in the first section (32) or in the second section (32) in the direction (29) of the flow of the channel 33) at least one window (55) is provided, which provides communication with the medium flowing around the device (1). 8. Устройство по п. 7, отличающееся тем, что по меньшей мере одно окно (55) выполнено в боковых стенках (27) и/или проходит к нижней наружной поверхности (50) измерительной части (17) устройства (1), имеющей измерительный канал (30). 8. The device according to claim 7, characterized in that at least one window (55) is made in the side walls (27) and / or extends to the lower outer surface (50) of the measuring part (17) of the device (1) having a measuring channel (30). 9. Устройство по п. 1, отличающееся тем, что измерительный канал (30) имеет прямоугольное поперечное сечение, которое сужается в направлении от впускного отверстия (35) к выпускному отверстию (36). 9. The device according to claim 1, characterized in that the measuring channel (30) has a rectangular cross section that tapers in the direction from the inlet (35) to the outlet (36). 10. Устройство по п. 1, отличающееся тем, что изменяющий направление потока канал (31) имеет прямоугольное поперечное сечение, причем первый участок (32) выполнен таким образом, что живое сечение потока за выпускным отверстием (36) измерительного канала (30) ниже по ходу потока резко увеличивается. 10. The device according to claim 1, characterized in that the channel (31) that changes the direction of flow has a rectangular cross section, and the first section (32) is made in such a way that the living section of the stream behind the outlet (36) of the measuring channel (30) is lower along the flow increases sharply.
RU98104424/28A 1996-06-12 1997-01-10 Gear measuring flow rate of fluid medium RU2174673C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19623334.8 1996-06-12
DE19623334A DE19623334A1 (en) 1996-06-12 1996-06-12 Device for measuring the mass of a flowing medium

Publications (2)

Publication Number Publication Date
RU98104424A true RU98104424A (en) 2000-01-10
RU2174673C2 RU2174673C2 (en) 2001-10-10

Family

ID=7796668

Family Applications (1)

Application Number Title Priority Date Filing Date
RU98104424/28A RU2174673C2 (en) 1996-06-12 1997-01-10 Gear measuring flow rate of fluid medium

Country Status (8)

Country Link
US (1) US6148663A (en)
EP (1) EP0845099B1 (en)
JP (1) JP3877777B2 (en)
KR (1) KR100510384B1 (en)
CN (1) CN1119626C (en)
DE (2) DE19623334A1 (en)
RU (1) RU2174673C2 (en)
WO (1) WO1997047952A1 (en)

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DE10245965B4 (en) * 2002-09-30 2021-06-02 Robert Bosch Gmbh Device for determining at least one parameter of a medium flowing in a line
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US10415865B2 (en) 2012-10-08 2019-09-17 Whirlpool Corporation Refrigerator with wet ice storage
DE102012224049A1 (en) * 2012-12-20 2014-06-26 Robert Bosch Gmbh Sensor device for detecting at least one flow characteristic of a fluid medium
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