Patent ID: 6748735
Filing Date: 2004-06-15
Classification: F23Q

Abstract:
A torch igniter comprising:a housing defining a combustion chamber, at least one fuel conduit and at least one oxidizer conduit, the at least one fuel conduit intersecting the combustion chamber forwardly of an end wall and being configured to dispense at least one stream of fuel into the combustion chamber, the at least one oxidizer conduit intersecting the combustion chamber forwardly of the end wall and being configured to dispense at least one stream of oxidizer into the combustion chamber, the at least one stream of fuel mixing with the at least one stream of oxidizer to produce a fuel/oxidizer mixture; and an electronic ignition source coupled to the housing and generating an ignition kernel that is dispensed into the combustion chamber rearwardly of the fuel and oxidizer conduits, the ignition kernel initially igniting the fuel/oxidizer mixture in the combustion chamber; wherein the fuel and oxidizer conduits are positioned relative to the combustion chamber to create an upstream recirculation zone and a downstream recirculation zone, the upstream and downstream recirculation zones cooperating to stabilize and pilot combustion within the combustion chamber.