Cooling for surface ignitors in torch ignition devices
AssigneeCollins Engine Nozzles, Inc.
InventorsJason Ryon, Lev A. Prociw
Life of this patent
Estimating the term…
Abstract
A torch ignitor system includes a torch wall defining a combustion chamber therein with a flame outlet passing out of the torch wall downstream of the combustion chamber. A fuel nozzle is mounted to the torch wall to issue fuel into the combustion chamber. An ignitor is mounted to the torch wall, extending into the combustion chamber to ignite fuel issued from the fuel nozzle. A cooling passage is in thermal communication with the ignitor for cooling the ignitor with fluid passing through the cooling passage.
Claims16
A torch ignitor system comprising:
- a torch wall defining a combustion chamber therein with a flame outlet passing out of the torch wall downstream of the combustion chamber;
- a fuel nozzle mounted to the torch wall to issue fuel into the combustion chamber;
- an ignitor mounted to the torch wall, extending into the combustion chamber to ignite fuel issued from the fuel nozzle;
- and
- a cooling passage in thermal communication with the ignitor for cooling the ignitor with fluid passing through the cooling passage, wherein the cooling passage includes a coil section that is coiled multiple times around the ignitor along a helical path extending along the ignitor.
A torch ignitor system comprising:
- a torch wall defining a combustion chamber therein with a flame outlet passing out of the torch wall downstream of the combustion chamber;
- a fuel nozzle mounted to the torch wall to issue fuel into the combustion chamber;
- an ignitor mounted to the torch wall, extending into the combustion chamber to ignite fuel issued from the fuel nozzle;
- and
- a cooling passage in thermal communication with the ignitor for cooling the ignitor with fluid passing through the cooling passage, wherein the cooling passage is defined between a fuel inlet and a fuel outlet, wherein the fuel inlet is configured to introduce fuel from a fuel source into the cooling passage, and wherein the fuel outlet is in fluid communication with the fuel nozzle to supply fuel to the fuel nozzle, wherein the ignitor is one of a plurality of ignitors each mounted to the torch wall, extending into the combustion chamber, wherein the cooling passage is in thermal communication with each of the ignitors in the plurality of ignitors for cooling the ignitors with fluid passing through the cooling passage.
A torch ignitor system comprising:
- a torch wall defining a combustion chamber therein with a flame outlet passing out of the torch wall downstream of the combustion chamber;
- a fuel nozzle mounted to the torch wall to issue fuel into the combustion chamber;
- an ignitor mounted to the torch wall, extending into the combustion chamber to ignite fuel issued from the fuel nozzle;
- and
- a cooling passage in thermal communication with the ignitor for cooling the ignitor with fluid passing through the cooling passage, wherein the cooling passage is additively manufactured together with the torch wall.
Dependencies are inferred from the claim text.