Laval nozzle
AssigneeMahle International GmbH
InventorsRolf Mueller, Holger Oechslen, Peter Wieske
Life of this patent
Estimating the term…
Abstract
A Laval nozzle may include a convergent duct section having a first longitudinal axis for accelerating a flow of a working fluid from a subsonic speed to a sonic speed. The Laval nozzle may include a divergent duct section, which is fluid-connected to the convergent duct section. The divergent duct section may have a second longitudinal axis for further accelerating the flow from the sonic speed to a supersonic speed. The convergent duct section and the divergent duct section may be aligned with respect to each other such that the first longitudinal axis intersects the second longitudinal axis.
Claims20
A Laval nozzle comprising:
- a convergent duct section having a first longitudinal axis, for accelerating a flow of a working fluid from a subsonic speed to a sonic speed, and
- a divergent duct section, which is fluid-connected to the convergent duct section and has a second longitudinal axis, for further accelerating the flow from the sonic speed to a supersonic speed, wherein the convergent duct section and the divergent duct section are aligned with respect to each other such that the first longitudinal axis intersects the second longitudinal axis.
A turbine comprising
- a rotatably mounted output shaft for discharging mechanical output work of a working fluid, and
- at least one rotor, which is mechanically connected to the output shaft, for rotating the output shaft via a flow of the working fluid,
- at least one Laval nozzle fluidically-connected to the rotor for introducing the flow into the rotor, the Laval nozzle including:
- a convergent duct section having a first longitudinal axis for accelerating the flow of the working fluid from a subsonic speed to a sonic speed;
- and
- a divergent duct section fluidically-connected to the convergent duct section, the divergent duct section having a second longitudinal axis for accelerating the flow from the sonic speed to a supersonic speed;
- wherein the convergent duct section and the divergent duct section are arranged such that the first longitudinal axis intersects the second longitudinal axis.
A method for producing a Laval nozzle from a workpiece having an inlet side and an outlet side opposite the inlet side, comprising:
- shaping the workpiece by machine-cutting on the inlet side along a first longitudinal axis and on the outlet side along a second longitudinal axis that intersects the first longitudinal axis, wherein the shaping takes place such that a convergent duct section, which opens into the inlet side, and a divergent duct section, which is connected to the convergent duct section and opens out of the outlet side, are produced in the workpiece.
Dependencies are inferred from the claim text.