AERODYNAMIC FASTENING OF TURBOMACHINE FUEL INJECTORS
First Claim
1. A premixing fuel nozzle assembly for a turbomachine, comprising:
- at least one fuel injector comprising an outer jacket having a first end and a second end with a threaded surface disposed therebetween, wherein the first end comprises a cylindrical sealing surface and the second end comprises at least one wrenching pocket;
an annular hub comprising an aperture having a first end and a second end with a threaded surface disposed therebetween, wherein the aperture is configured to at least partially house the fuel injector therein, the annular hub further comprising a conical seat about the first end; and
wherein the fuel injector cylindrical sealing surface swages inward to form a hermetic seal when contacting the annular hub conical seat as the fuel injector is threaded into the aperture.
2 Assignments
0 Petitions
Accused Products
Abstract
A premixing fuel nozzle assembly for a turbomachine is disclosed as having at least one fuel injector with an outer jacket having a first end and a second end and a threaded surface disposed therebetween. The first end has a cylindrical sealing surface and the second end has at least one wrenching pocket. An annular hub is disclosed as having an aperture with a first end and a second end and a threaded surface disposed therebetween, wherein the aperture is configured to at least partially house the fuel injector therein and the annular hub further has a conical seat about the first end. The fuel injector cylindrical sealing surface swages inward to form a hermetic seal when contacting the annular hub conical seat as the fuel injector is threaded into the aperture.
-
Citations
20 Claims
-
1. A premixing fuel nozzle assembly for a turbomachine, comprising:
-
at least one fuel injector comprising an outer jacket having a first end and a second end with a threaded surface disposed therebetween, wherein the first end comprises a cylindrical sealing surface and the second end comprises at least one wrenching pocket; an annular hub comprising an aperture having a first end and a second end with a threaded surface disposed therebetween, wherein the aperture is configured to at least partially house the fuel injector therein, the annular hub further comprising a conical seat about the first end; and wherein the fuel injector cylindrical sealing surface swages inward to form a hermetic seal when contacting the annular hub conical seat as the fuel injector is threaded into the aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A turbomachine, comprising:
-
a compressor; a combustor in communication with the compressor, the combustor comprising at least one premixing fuel nozzle assembly, comprising; at least one fuel injector comprising an outer jacket having a first end and a second end with a threaded surface disposed therebetween, wherein the first end comprises a cylindrical sealing surface and the second end comprises at least one wrenching pocket; an annular hub comprising an aperture having a first end and a second end with a threaded surface disposed therebetween, wherein the aperture is configured to at least partially house the fuel injector therein, the annular hub further comprising a conical seat about the first end; and wherein the fuel injector cylindrical sealing surface swages inward to form a hermetic seal when contacting the conical seat as the fuel injector is threaded into the aperture. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification