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Low power piezoelectric micro mass flow controller for liquid fuel injection

Schiffer, Michael; Obermeier, Ernst; Stefanini, Cesare; Manente, Vittorio LU and Tunestål, Per LU (2007) 6th IEEE Conference on SENSORS, IEEE SENSORS 2007 In The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007 p.1392-1395
Abstract

Utilization of an ethanol driven, combustion-based power generator promises high-efficiency combustion in diesel-like engines and avoids problems connected to shrinking supplies of fossil fuels since fuels like ethanol or dimethyl ether can be produced from renewable resources. Fuel injection into such generator through a piezoelectric micro mass flow controller (MMFC) features low power consumption and enables self-sustaining operation: Only a negligible amount of generated power is re-used for injection and combustion control. A micro-machined MMFC with power consumption during steady state operation of 20μW at 120V is presented herein. The MMFC, which is designed like a normally-closed, on-/off-operating valve is connected to a... (More)

Utilization of an ethanol driven, combustion-based power generator promises high-efficiency combustion in diesel-like engines and avoids problems connected to shrinking supplies of fossil fuels since fuels like ethanol or dimethyl ether can be produced from renewable resources. Fuel injection into such generator through a piezoelectric micro mass flow controller (MMFC) features low power consumption and enables self-sustaining operation: Only a negligible amount of generated power is re-used for injection and combustion control. A micro-machined MMFC with power consumption during steady state operation of 20μW at 120V is presented herein. The MMFC, which is designed like a normally-closed, on-/off-operating valve is connected to a pressurized fuel tank for testing and operation. Integrated piezoresistors are used for flow rate feedback control and an implemented pn-diode (sensitivity: -2.5mV/K) enables on-chip temperature monitoring. Ethanol flow rates of up to 70μl/s at 100kPa fuel pressure have been demonstrated.

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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
pages
4 pages
conference name
6th IEEE Conference on SENSORS, IEEE SENSORS 2007
external identifiers
  • scopus:48349103842
ISBN
1424412617
9781424412617
DOI
10.1109/ICSENS.2007.4388672
language
English
LU publication?
yes
id
e6d499fc-f696-4094-96b8-8eefee364db4
date added to LUP
2017-12-15 08:44:22
date last changed
2018-01-09 09:10:31
@inproceedings{e6d499fc-f696-4094-96b8-8eefee364db4,
  abstract     = {<p>Utilization of an ethanol driven, combustion-based power generator promises high-efficiency combustion in diesel-like engines and avoids problems connected to shrinking supplies of fossil fuels since fuels like ethanol or dimethyl ether can be produced from renewable resources. Fuel injection into such generator through a piezoelectric micro mass flow controller (MMFC) features low power consumption and enables self-sustaining operation: Only a negligible amount of generated power is re-used for injection and combustion control. A micro-machined MMFC with power consumption during steady state operation of 20μW at 120V is presented herein. The MMFC, which is designed like a normally-closed, on-/off-operating valve is connected to a pressurized fuel tank for testing and operation. Integrated piezoresistors are used for flow rate feedback control and an implemented pn-diode (sensitivity: -2.5mV/K) enables on-chip temperature monitoring. Ethanol flow rates of up to 70μl/s at 100kPa fuel pressure have been demonstrated.</p>},
  author       = {Schiffer, Michael and Obermeier, Ernst and Stefanini, Cesare and Manente, Vittorio and Tunestål, Per},
  booktitle    = {The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007},
  isbn         = {1424412617},
  language     = {eng},
  pages        = {1392--1395},
  title        = {Low power piezoelectric micro mass flow controller for liquid fuel injection},
  url          = {http://dx.doi.org/10.1109/ICSENS.2007.4388672},
  year         = {2007},
}