Injector for injecting air into the combustion chamber of a torch burner and a torch burner
AssigneeE.E.T. Umwelt - & Gastechnik GmbH
InventorEdgar Muschelknautz
Life of this patent
Estimating the term…
Abstract
An injector (12) for sucking in environmental air and for injection into the combustion chamber (12) of a torch burner (11) by means of a driving fluid (14) standing under excess pressure, has an air induction opening (15), a flow channel (16) and injection openings (17) through which the driving fluid (14) is blown into a mixing region (19) where it mixes with induced air. The flow channel (16) has a diffusor region (18) ajoining the mixing region (19) in the flow direction and has an outlet opening (20) for the mixture of air and driving fluid. In accordance with the invention, injection openings (17) open into a dead flow space (22) from which spray jets (23) are directed into the mixing region (19).
Claims18
In combination with a torch burner having an inlet, an outlet, and a combustion chamber between the inlet and the outlet having a wall between the inlet and the outlet, and a series of injectors for receiving driving fluid and ambient air from exterior of the combustion chamber and discharging intermixed ambient air and driving fluid interior of the combustion chamber, the improvement to the injectors comprising in combination:
- an air induction opening outside of the combustion chamber for receiving ambient air;
- an air flow channel from the air induction opening for receiving ambient air and discharging through the wall of the combustion chamber into the combustion chamber;
- the air flow channel having a driving fluid mixing region, and a diffuser region for discharge into the combustion chamber;
- the driving fluid mixing region defining a constricting passage from the air induction opening to and toward the driving fluid mixing region;
- a driving fluid manifold constituting a ring tube having at least a semi-circular cross-section, the ring tube being mounted to the air induction opening within the driving fluid mixing region, the driving fluid manifold having an inlet for receiving the driving fluid, and a plurality of outlets;
- the plurality of outlets discharging to the driving fluid mixing region with a velocity component for moving the intermixed ambient air, and driving fluid from the air induction opening through the diffuser region for discharge to the combustion chamber;
- the plurality of outlets provided on the ring tube toward the driving fluid mixing region following a narrowest cross-section of the ring tube;
- each of the outlets of the plurality of outlets is spaced from the flow channel wall a distance larger than an opening of the outlets;
- and
- the driving fluid manifold defining a dead flow space between the air induction opening and the driving fluid mixing region, with the plurality of outlets directed from the dead flow space into the mixing region.
In combination with a torch burner having an inlet, an outlet, and a combustion chamber between the inlet and the outlet having a wall between the inlet and the outlet, and a series of injectors for receiving driving fluid and ambient air from exterior of the combustion chamber and discharging intermixed ambient air and driving fluid interior of the combustion chamber, the improvement to the injectors comprising in combination:
- an air induction opening outside of the combustion chamber for receiving ambient air;
- an air flow channel from the air induction opening for receiving ambient air and discharging through the wall of the combustion chamber into the combustion chamber;
- the air flow channel having a driving fluid mixing region, and a diffuser region for discharge into the combustion chamber;
- the diffuser region is subdivided by a plurality of sheet metal vanes;
- the driving fluid mixing region defining a constricting passage from the air induction opening to and toward the driving fluid mixing region;
- a driving fluid manifold constituting a ring tube having at least a semi circular cross-section, the ring tube being mounted to the air induction opening within the driving fluid mixing region, the driving fluid manifold having an inlet for receiving the driving fluid, and a plurality of outlets;
- the plurality of outlets discharging to the driving fluid mixing region with a velocity component for moving the intermixed ambient air, and driving fluid from the air induction opening through the diffuser region for discharge to the combustion chamber;
- the plurality of outlets provided on the ring tube toward the driving fluid mixing region following a narrowest cross-section of the ring tube;
- and
- the driving fluid manifold defining a dead flow space between the air induction opening and the driving fluid mixing region, with the plurality of outlets directed from the dead flow space into the mixing region.
In combination with a torch burner having an inlet, an outlet, and a combustion chamber between the inlet and the outlet having a wall between the inlet and the outlet, and a series of injectors for receiving driving fluid and ambient air from exterior of the combustion chamber and discharging intermixed ambient air and driving fluid interior of the combustion chamber, the improvement to the injectors comprising in combination:
- an air induction opening outside of the combustion chamber for receiving ambient air;
- an air flow channel from the air induction opening for receiving ambient air and discharging through the wall of the combustion chamber into the combustion chamber;
- the air flow channel having a driving fluid mixing region, and a diffuser region for discharge into the combustion chamber;
- the diffuser region has a streamlined body centrally mounted in the diffuser;
- the driving fluid mixing region defining a constricting passage from the air induction opening to and toward the driving fluid mixing region;
- a driving fluid manifold constituting a ring tube having a circular cross-section, the ring tube being mounted to the air induction opening within the driving fluid mixing region, the driving fluid manifold having an inlet for receiving the driving fluid, and a plurality of outlets;
- the plurality of outlets discharging to the driving fluid mixing region with a velocity component for moving the intermixed ambient air, and driving fluid from the air induction opening through the diffuser region for discharge to the combustion chamber;
- the plurality of outlets provided on the ring tube toward the driving fluid mixing region following a narrowest cross-section of the ring tube;
- and
- the driving fluid manifold defining a dead flow space between the air induction opening and the driving fluid mixing region, with the plurality of outlets directed from the dead flow space into the mixing region.
Dependencies are inferred from the claim text.