| Patent application number | Description | Published |
|---|
| 20100037612 | FUEL DIVIDER SYSTEM FOR GAS TURBINE ENGINE - A fuel divider system includes a housing assembly and a flow passage network having an inlet, a primary outlet, and a secondary outlet. A fuel divider piston is slidably disposed within the housing assembly and movable between a flow biasing position and a flow equalizing position. A control chamber is fluidly coupled to the flow passage network and fluidly communicates with the piston. An inlet chamber, at least partially defined by the piston and the housing assembly, is fluidly coupled to the inlet. At least one channel is provided through the piston and configured to cooperate with the flow passage network to port the FD control chamber to: (i) the fuel pressure at the secondary outlet when the FD piston is in the flow biasing position, and (ii) the fuel pressure within the inlet chamber when the FD piston is in the flow equalizing position. | 02-18-2010 |
| 20100050593 | FLOW EQUALIZING OVERRIDE ASSEMBLY FOR FUEL DIVIDER SYSTEM - A flow equalizing override assembly is provided for use in conjunction with a gas turbine engine (GTE) and a fuel divider system. In one embodiment, the flow equalizing override assembly includes a housing assembly, a fuel divider (FD) valve, a remotely-actuatable valve, and a controller. The FD valve includes: (i) a piston slidably disposed within the housing assembly and movable between a default position and a flow equalizing position, and (ii) a control chamber defined by the piston and the housing assembly. The remotely-actuatable valve is fluidly coupled to the control chamber and is configured to selectively adjust the fuel pressure therein. The controller is configured to command the remotely-actuatable valve to adjust the pressure within the control chamber such that the piston moves from the default position to the flow equalizing position after ignition of the GTE. | 03-04-2010 |
| 20100058733 | ECOLOGY VALVE FUEL RETURN SYSTEM FOR GAS TURBINE ENGINE - An ecology valve (EV) fuel return system is provided. In one embodiment, the EV fuel return system includes a housing assembly having a fuel return outlet and a first manifold inlet. The fuel return outlet is fluidly coupled to a fuel supply system, and the first manifold inlet is fluidly coupled to a first manifold of a gas turbine engine (GTE). An ecology valve is disposed in the housing assembly and fluidly coupled to the fuel return outlet and to the first manifold inlet. A fuel routing assembly is fluidly coupled between the first manifold inlet, the fuel return outlet, and the ecology valve. The fuel routing assembly routes fuel: (i) from the first manifold inlet to the ecology valve when the GTE is in a shut-down mode, and (ii) from the ecology valve to the fuel return outlet when the GTE is in an engine start mode. | 03-11-2010 |
| 20100132368 | ECOLOGY VALVE FUEL RETURN SYSTEM OPERABLE IN FLUID ISOLATION DURING GAS TURBINE ENGINE SHUT-DOWN - In one embodiment, an ecology valve (EV) fuel return system includes a housing assembly, an ecology valve, and a fuel routing assembly. The ecology valve includes an EV piston slidably disposed within the housing assembly for movement between a fuel storage position and a fuel return position, a fuel storage chamber defined by the EV piston and the housing assembly, and an EV control chamber defined by the EV piston and the housing assembly. The fuel routing assembly, which is fluidly coupled to the EV control chamber and to the fuel storage chamber, is configured to route fuel: (i) from the fuel storage chamber to a fuel supply system when a gas turbine engine (GTE) is in a start-up mode, and (ii) from the first fuel manifold and from the EV control chamber to the fuel storage chamber when the GTE is in a shut-down mode. | 06-03-2010 |
