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

2001-03-05

A Nozzle-Integrated Flow Sensor for Common-Rail Injection Systems 2001-01-0614

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $33.00 Print $33.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-8)

Participate with SAE

SAE Membership

Donate

A Nozzle-Integrated Flow Sensor for Common-Rail Injection Systems 2001-01-0614

SAE MOBILUS