Integrated fuel injector igniters suitable for large engine applications and associated methods of use and manufacture
First Claim
1. An injector for introducing and igniting fuel at an interface with a combustion chamber, the injector comprising:
- an injector body including—
a base portion configured to receive fuel into the injector body;
a nozzle portion opposite the base portion, wherein the nozzle portion is configured to be positioned proximate to the combustion chamber to inject fuel into the combustion chamber;
a fuel flow path extending through the body;
an ignition rod extending from the base portion to the nozzle portion;
an ignition insulator coaxially disposed over the ignition rod, the ignition insulator extending from the base portion at least partially into the nozzle portion; and
a valve coaxially disposed over the ignition insulator and operable from an open position to a closed position.
7 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of injectors suitable for injection ports having relatively small diameters are disclosed herein. An injector according to one embodiment includes a body having a first end portion opposite a second end portion, where the second end portion is configured to be positioned adjacent to a combustion chamber. The injector also includes an ignition conductor extending through the body, and an insulator extending longitudinally along the ignition conductor and surrounding at least a portion of the ignition conductor. The injector further includes a valve extending longitudinally along the insulator from the first end portion to the second end portion. The valve includes a sealing end portion, and the valve is movable along the insulator between an open position and a closed position.
-
Citations
24 Claims
-
1. An injector for introducing and igniting fuel at an interface with a combustion chamber, the injector comprising:
-
an injector body including— a base portion configured to receive fuel into the injector body; a nozzle portion opposite the base portion, wherein the nozzle portion is configured to be positioned proximate to the combustion chamber to inject fuel into the combustion chamber; a fuel flow path extending through the body; an ignition rod extending from the base portion to the nozzle portion; an ignition insulator coaxially disposed over the ignition rod, the ignition insulator extending from the base portion at least partially into the nozzle portion; and a valve coaxially disposed over the ignition insulator and operable from an open position to a closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An injector for introducing fuel into a combustion chamber, the injector comprising:
-
a body having a first end portion opposite a second end portion, wherein the second end portion is configured to be positioned adjacent to an interface of the combustion chamber; an ignition conductor extending through the body from the first end portion to the second end portion, wherein the ignition conductor is configured to transmit ignition energy to generate an ignition event; an insulator extending longitudinally along the ignition conductor and surrounding at least a portion of the ignition conductor; and a valve extending longitudinally along at least a portion of the insulator between the first end portion and the second end portion and movable along the insulator between an open position and a closed position, wherein the valve surrounds at least a portion of the insulator. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
-
Specification