A nozzle-integrated flow sensor for common-rail injection systems

U. Schmid; G. Krötz; H. Öing; G. Renner; D. Schmitt-Landsiedel

doi:10.4271/2001-01-0614

A nozzle-integrated flow sensor for common-rail injection systems

U. Schmid
, G. Krötz
, H. Öing
, G. Renner
, D. Schmitt-Landsiedel

Medicine and Health

Daimler-Benz AG

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

We are the first to report about a micromachined flow sensor directly integrated in the Common Rail injection nozzle body between the double guidance and the tip of the nozzle. The thermal measurement principle is chosen, because it enables a very precise and fast detection of gaseous and liquid mass flows. Additionally, the velocity field in the nozzle is only slightly influenced by the integration of the sensor in the nozzle body due to the negligible height of the sensitive layer. For a hot film anemometer, a high pressure stable ceramic substrate can be used, fabricated in a low cost batch process. The technology, to fabricate the sensor, as well as the first flow measurements, carried out at a high pressure test set up, are presented.

Original language	English
Journal	SAE Technical Papers
DOIs	https://doi.org/10.4271/2001-01-0614
State	Published - 2001
Event	SAE 2001 World Congress - Detroit, MI, United States Duration: 5 Mar 2001 → 8 Mar 2001

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10.4271/2001-01-0614

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title = "A nozzle-integrated flow sensor for common-rail injection systems",

abstract = "We are the first to report about a micromachined flow sensor directly integrated in the Common Rail injection nozzle body between the double guidance and the tip of the nozzle. The thermal measurement principle is chosen, because it enables a very precise and fast detection of gaseous and liquid mass flows. Additionally, the velocity field in the nozzle is only slightly influenced by the integration of the sensor in the nozzle body due to the negligible height of the sensitive layer. For a hot film anemometer, a high pressure stable ceramic substrate can be used, fabricated in a low cost batch process. The technology, to fabricate the sensor, as well as the first flow measurements, carried out at a high pressure test set up, are presented.",

author = "U. Schmid and G. Kr{\"o}tz and H. {\"O}ing and G. Renner and D. Schmitt-Landsiedel",

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language = "English",

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AU - Schmid, U.

AU - Krötz, G.

AU - Öing, H.

AU - Renner, G.

AU - Schmitt-Landsiedel, D.

PY - 2001

Y1 - 2001

N2 - We are the first to report about a micromachined flow sensor directly integrated in the Common Rail injection nozzle body between the double guidance and the tip of the nozzle. The thermal measurement principle is chosen, because it enables a very precise and fast detection of gaseous and liquid mass flows. Additionally, the velocity field in the nozzle is only slightly influenced by the integration of the sensor in the nozzle body due to the negligible height of the sensitive layer. For a hot film anemometer, a high pressure stable ceramic substrate can be used, fabricated in a low cost batch process. The technology, to fabricate the sensor, as well as the first flow measurements, carried out at a high pressure test set up, are presented.

AB - We are the first to report about a micromachined flow sensor directly integrated in the Common Rail injection nozzle body between the double guidance and the tip of the nozzle. The thermal measurement principle is chosen, because it enables a very precise and fast detection of gaseous and liquid mass flows. Additionally, the velocity field in the nozzle is only slightly influenced by the integration of the sensor in the nozzle body due to the negligible height of the sensitive layer. For a hot film anemometer, a high pressure stable ceramic substrate can be used, fabricated in a low cost batch process. The technology, to fabricate the sensor, as well as the first flow measurements, carried out at a high pressure test set up, are presented.

UR - https://www.scopus.com/pages/publications/85072464742

U2 - 10.4271/2001-01-0614

DO - 10.4271/2001-01-0614

M3 - Conference article

AN - SCOPUS:85072464742

SN - 0148-7191

JO - SAE Technical Papers

JF - SAE Technical Papers

T2 - SAE 2001 World Congress

Y2 - 5 March 2001 through 8 March 2001

ER -

A nozzle-integrated flow sensor for common-rail injection systems

Abstract

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