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US 7,371,065 B2Granted
Apparatus and method for the controlled production of nano-soot particles
AssigneeDeutsches Zentrum für Luft- und Raumfahrt e.V.
InventorsManfred Aigner, Claus Wahl, Veronique Krueger
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Abstract
In order to provide an apparatus for the controlled production of nano-soot particles, a pore burner and a mixing device for the production of a pre-mixture of fuel and oxidizing agent are provided, wherein the mixing device is coupled to the pore burner so that the pre-mixture can be supplied to it.
Claims23
Apparatus for the controlled production of nano-soot particles, comprising:
- a pore burner comprising a combustion zone arranged above a pore plate;
- a mixing device adapted for the production of a pre-mixture of fuel and oxidizing agent;
- wherein said mixing device is coupled to the pore burner such that the pre-mixture can be supplied thereto;
- a probe device for coupling out a partial flow of produced nano-soot particles;
- an analyzer device for measuring the particle size of the nano-soot particles within the partial flow coupled out by the probe device;
- a control device for controlling the mixture of fuel and oxidizing agent, wherein the control device is in communication with the analyzer device and adapted for controlling the mixture of fuel and oxidizing agent as a function of the particle size measured by the analyzer device;
- wherein the probe device has a suction device for drawing the partial flow out of the combustion zone by suction;
- and
- wherein an entry aperture of the probe device is positioned at or in the vicinity of a central area of the combustion zone.
6 more elements
Apparatus for the controlled production of nano-soot particles, comprising:
- a pore burner comprising a combustion zone in fluid communication with a first distribution chamber and a second distribution chamber, wherein said second distribution chamber is separated by a wall from said first distribution chamber and operatively positioned to surround said first distribution chamber, and further comprising a pore plate comprising a plurality of pores, said pore plate operatively arranged to separate said first and second distribution chambers from said combustion zone, wherein the combustion zone is arranged above the pore plate;
- a mixing device in fluid communication with said first distribution chamber and operatively adapted for the production of a pre-mixture of fuel and oxidizing agent;
- an inert gas supply in fluid communication with said second distribution chamber;
- a baffle plate positioned within said combustion zone and in spaced relation to said pore plate;
- a probe positioned within said combustion zone between said pore plate and said baffle plate, said probe operatively adapted for removing a portion of a combustion exhaust gas comprising nano-soot particles from said combustion zone by suction for coupling out a partial flow of produced nano-soot particles, wherein an entry aperture of the probe device is positioned at or in the vicinity of a central area of the combustion zone;
- an analyzer device for measuring the particle size of the nano-soot particles within the partial flow coupled out by the probe;
- and
- a control device for controlling the mixture of fuel and oxidizing agent, wherein the control device is in communication with the analyzer device and adapted for controlling the mixture of fuel and oxidizing agent as a function of the particle size measured by the analyzer device.
5 more elements
Dependencies are inferred from the claim text.