Systems and methods for remotely monitoring the amount of fuel in one or more fuel tanks are disclosed. A fuel monitoring device includes a sensor configured to monitor the operation of a valve coupled to an output of a fuel tank and a network and communication system configured to receive data from the sensor related to the operation of the valve and establish communication with one or more remote systems via a communications network. The fuel monitoring device communicates the data related to the operation of the sensor to a remote server system via the communications network. Based on the data received from the fuel monitoring device and one or more remote systems, the remote server system can determine the amount of fuel remaining in the tank, and can predict when the tank will require additional fuel.

Torches are automatically refilled with a liquid fuel from a central reservoir pumped via a plumbing system, without directly monitoring local torch fuel levels. Instead, each torch includes a passive fuel overfill prevention valve. When refueling, the pump operates until all torches are filled. Refueling can cease after a set time, or when sensors report a backpressure and/or cessation of fuel flow. Pre-calibration establishes torch burning rates and/or maximum refill time. Time between refueling is predicted, based upon total burning time, which can be measured by torch heat sensors or determined according to a usage schedule or direct control of torch ignition and extinguishing by the controller. Reverse pumping can extinguish the torches, and wick ignitors can relight them sequentially. A service provider can monitor fuel consumption, establish a pattern of usage, and supply fuel in time to replenish the central reservoir, and/or other provide maintenance as needed.

Torches are automatically refilled with a liquid fuel from a central reservoir pumped via a plumbing system, without directly monitoring local torch fuel levels. Instead, each torch includes a passive fuel overfill prevention valve. When refueling, the pump operates until all torches are filled. Refueling can cease after a set time, or when sensors report a backpressure and/or cessation of fuel flow. Pre-calibration establishes torch burning rates and/or maximum refill time. Time between refueling is predicted, based upon total burning time, which can be measured by torch heat sensors or determined according to a usage schedule or direct control of torch ignition and extinguishing by the controller. Reverse pumping can extinguish the torches, and wick ignitors can relight them sequentially. A service provider can monitor fuel consumption, establish a pattern of usage, and supply fuel in time to replenish the central reservoir, and/or other provide maintenance as needed.

A self-pumping fuel injector includes a pump and a motor for, in-part, delivering fuel to a combustor at higher fuel pressures during start-up and ramping-up conditions. Each pump may include a stationary flow interuptor that intermittently and variably supplies fuel to a rotating spindle that, in-turn, expels the fuel into a nozzle of the injector for improve fuel spray distributions.

A fuel injector for a multipoint injection system can include a body defining an air cavity for allowing air to flow therethrough and an interior cavity. A fuel is tube disposed at least partially within the interior cavity of the body. The fuel tube can include a first end configured to connect to a fuel injector connector of a fuel manifold, and a second end configured to connect to a fuel distributor of the fuel injector, wherein the fuel injector is configured to be disposed at least partially in a combustor dome. The fuel tube is configured to move in an axial direction to allow flexibility between the fuel manifold and the combustor dome.

A dynamic seal assembly is disclosed for use in a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly including an annular seal member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening facing toward the upstream pressure side of the valve, wherein the upstream leg has a radial length that is greater than a radial length of the downstream leg and includes a retaining foot that extends angularly away from the upstream leg in an upstream direction at an angle of between about 0 and 90, and a metallic spring is disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member.

An inlet body for a fluid injector for a turbomachine. The inlet body includes a casing defined by an internal surface and a seal valve housed inside the casing. The valve includes a sealing member including an intake duct, and internal duct into which the intake duct opens, and a seat for the sealing member. The seat defines an opening over a fluid path towards the internal duct. The internal surface includes a recess which defines at least partially a chamber communicating with the opening and with the intake duct.

An inlet body is for a fluid injector for a turbomachine. The inlet body includes a casing and an inlet nozzle, housed inside the casing, that serves as a seat for a mobile sealing member. The inlet nozzle includes a central duct for the fluid and an annular rim surrounding the central duct. The annular rim includes a housing for a gasket. The housing is defined by a bottom wall, an opening opposite the bottom wall, and two opposite walls which each extend between the bottom wall and the opening. The walls are tilted towards each other in the direction of the opening.

An inlet body is for a fluid injector for a turbomachine. The inlet body includes a casing and an inlet nozzle, housed inside the casing, that serves as a seat for a mobile sealing member. The inlet nozzle includes a central duct for the fluid and an annular rim surrounding the central duct. The annular rim includes a housing for a gasket. The housing is defined by a bottom wall, an opening opposite the bottom wall, and two opposite walls which each extend between the bottom wall and the opening. The walls are tilted towards each other in the direction of the opening.

An assembly for reducing excess piping pressure in a fluid distribution system. The assembly includes a fluid regulator including a body defining an inlet, an outlet, and a fluid passageway between the inlet and the outlet, a first control element movable relative to a valve seat in the fluid passageway to control fluid flow therethrough, a valve stem coupled to the first control element, and an actuator assembly operatively coupled to the valve stem to control a position of the first control element. The assembly also includes a solenoid valve coupled to the fluid regulator at a position upstream of the outlet, the solenoid valve adapted to receive a control signal indicative of zero demand downstream of the fluid regulator, and having a second control element that is movable, responsive to the control signal, from a first position to a second position to reduce fluid flowing through the fluid passageway.