Abstract: One or more boost pumps for a liquid hydrogen fuel system are disposed within the fuel tank and fully flooded. An electrical connector of each boost pump is sealed from the fuel tank and accessible from an exterior of the fuel tank while the boost pump is installed. Each boost pump can be independently replaced using a toolbox. Each boost pump is purged of fuel before being replaced by introducing a gas at a center region of the boost pump. The toolbox and new boost pump are purged prior to removal of the old boost pump. Each boost pump can be formed from modular components.

Abstract: The present disclosure relates generally to a system for inerting a fuel tank. The system includes a fuel pump, a jet ejector, a first flow path between the fuel pump and the jet ejector, a valve along the first flow path, the valve blocking the fuel flow from the fuel pump to the jet ejector when closed, a second flow path from the ullage of the fuel tank to the jet ejector to allow fuel vapor from the ullage to travel from the ullage to the jet ejector, a vaporizer downstream of the jet ejector and configured to vaporize the fuel received from the jet ejector into the fuel vapor, and a third flow path along which the fuel vapor flows from the vaporizer to the ullage so that an fuel-air ratio in the ullage of the fuel tank is maintained at greater than a flammable fuel-air ratio.

Abstract: A hydrogen fuel system for an aircraft is configured to provide hydrogen fuel to the engines for propulsion. The fuel system also may provide hydrogen fuel to a fuel cell arrangement to generate electricity for use on the aircraft. The fuel cell arrangement may be selectively coupled to the feed lines for the engines. A ventilation system regulates the pressure within the one or more fuel tanks and the feed lines. The ventilation system can vent hydrogen vapor to atmosphere or can transfer hydrogen vapor between the fuel tanks and the fuel cell arrangement. A jet pump and accumulator may pull vapor from the feed lines as needed.

Abstract: Systems, methods, and other embodiments associated with a framework for compliance report generation are described. In one embodiment, a method includes receiving a data source definition of a set of data sources comprising data for populating compliance reports. The example method may also include retrieving a compliance report definition for a compliance report for a reporting entity. The example method may also include constructing and rendering a user interface populated with a set of user interface elements generated based upon the set of data sources and the compliance report definition. The example method may also include generating the compliance report according to the compliance report definition. The compliance report is populated with data from the set of data sources. The compliance report is sent over a computing network to a remote computing device of the reporting entity.

Abstract: The present disclosure relates generally to a system for removing fuel from a mixture of air and fuel vapor in an ullage space of an aircraft fuel tank. The system includes a compressor for drawing the mixture of air and fuel vapor from the ullage space and directing the mixture of air and fuel vapor through a heat exchanger where the mixture of air and fuel vapor is cooled. The system also includes a turbine configured to be driven by the mixture of air and fuel from the heat exchanger. Power from the turbine can be transferred back toward the compressor to assist in driving rotation of the compressor. The system further includes a separator for receiving the mixture of air and fuel vapor from the turbine and separating at least some liquid fuel from the mixture of air and fuel vapor. From the separator, a separated liquid fuel and a mixture of air and fuel vapor with reduced concentration of fuel vapor are returned to the aircraft fuel tank.

Abstract: A fluid conduit includes, a body, a first conduit portion connected to the body, a second conduit portion connected to the body, and a base connected to the second conduit portion. The body, the first conduit portion, the second conduit portion, and the base may be formed as a monolithic component via additive manufacturing. A method of making a fluid conduit may include forming sets of layers. The set of layers may include parts or portions of the fluid conduit and/or supports.

Abstract: Described herein are systems and methods for updating configuration of a device based on changes to microservices. A device may receive a request via a desired state application programming interface (API) to update a configuration of the device to manage a desired set of instances of microservices. The device may identify from the request, a first set of endpoint information for each instance of a microservice in the desired set of instances of microservices. The first set of endpoint information may include an internet protocol (IP) address and port of an endpoint of a respective instance of the microservice. The first set or second set of endpoint information may include a weight for each instance of the microservice.

Abstract: Described embodiments provide systems and methods for securing communications between services in a cluster using load balancing. A first proxy of a first node of a cluster of nodes can receive a request for a service from at least one pod of the first node. The service can include a plurality of pods. The plurality of pods can execute in the cluster of nodes including the first node. The first proxy can select, responsive to a load balancing determination, a pod of a second node of the cluster of nodes to receive the request. An encrypted connection can be established with a second proxy of the second node. The request can be forwarded to the selected pod via the encrypted connection to the second proxy. The request can be decrypted at the second proxy and forwarded at the pod of the second node.

Abstract: Described herein are systems and methods for updating configuration of a device based on changes to microservices. A device may receive a request via a desired state application programming interface (API) to update a configuration of the device to manage a desired set of instances of microservices. The device may identify from the request, a first set of endpoint information for each instance of a microservice in the desired set of instances of microservices. The first set of endpoint information may include an internet protocol (IP) address and port of an endpoint of a respective instance of the microservice. The first set or second set of endpoint information may include a weight for each instance of the microservice.

Abstract: A fluid conduit includes a body, a first conduit portion connected to the body, a second conduit portion connected to the body, and a base connected to the second conduit portion. The body, the first conduit portion, the second conduit portion, and the base are formed as a monolithic component via additive manufacturing.

Abstract: Systems, methods, and other embodiments associated with a message recognition system configurable to define new message formats and interpret electronic transaction messages are described. In one embodiment, a method includes analyzing an electronic transaction message received from a remote device to determine a message type of the electronic transaction message. A message type data structure is queried to determine whether the message type is defined in the message type data structure. A message type configuration interface comprising one or more input fields for defining the message type is generated. Parameters are received via the one or more input fields of the message type configuration interface, and a message type definition is generated based upon the one or more parameters. The message type data structure is reconfigured to include the message type definition.

Abstract: A fuel boost pump assembly for an aircraft includes a first inlet for receiving a first pressurized fuel flow, a second inlet, an assembly outlet, a pump for transferring fuel between the second inlet and the assembly outlet, and a hydraulic motor adapted to drive the pump. The hydraulic motor is fluidly connected between the first inlet and the assembly outlet, and is mechanically coupled to the pump. Further, in use, the hydraulic motor converts hydraulic energy of the first pressurized fuel flow into driving energy of the pump such that the pump generates a second pressurized fuel flow between the second inlet and the assembly outlet.

Abstract: Described embodiments provide systems and methods for securing communications between services in a cluster using load balancing. A first proxy of a first node of a cluster of nodes can receive a request for a service from at least one pod of the first node. The service can include a plurality of pods. The plurality of pods can execute in the cluster of nodes including the first node. The first proxy can select, responsive to a load balancing determination, a pod of a second node of the cluster of nodes to receive the request. An encrypted connection can be established with a second proxy of the second node. The request can be forwarded to the selected pod via the encrypted connection to the second proxy. The request can be decrypted at the second proxy and forwarded at the pod of the second node.

Abstract: Described herein are systems and methods for updating configuration of a device based on changes to microservices. A device may receive a request via a desired state application programming interface (API) to update a configuration of the device to manage a desired set of instances of microservices. The device may identify from the request, a first set of endpoint information for each instance of a microservice in the desired set of instances of microservices. The first set of endpoint information may include an internet protocol (IP) address and port of an endpoint of a respective instance of the microservice. The first set or second set of endpoint information may include a weight for each instance of the microservice.

Abstract: An aircraft fuel tank inerting system includes an inlet, an oxygen absorption unit, and a vent to discharge oxygen from the system. The inlet may be configured to be in fluid communication with a ullage of a fuel tank. In embodiments, the oxygen absorption unit is in communication with the inlet and includes a chamber, a temperature reversible oxygen absorption medium within said chamber, and a temperature controller for selectively heating or cooling the medium. The reversible oxygen absorption medium may be a medium which absorbs oxygen by chemisorption.

Abstract: Systems, methods, and other embodiments associated with a message recognition system configurable to define new message formats and interpret electronic transaction messages are described. In one embodiment, a method includes analyzing an electronic transaction message received from a remote device to determine a message type of the electronic transaction message. A message type data structure is queried to determine whether the message type is defined in the message type data structure. A message type configuration interface comprising one or more input fields for defining the message type is generated. Parameters are received via the one or more input fields of the message type configuration interface, and a message type definition is generated based upon the one or more parameters. The message type data structure is reconfigured to include the message type definition.

Abstract: A fluid conduit includes, a body, a first conduit portion connected to the body, a second conduit portion connected to the body, and a base connected to the second conduit portion. The body, the first conduit portion, the second conduit portion, and the base may be formed as a monolithic component via additive manufacturing. A method of making a fluid conduit may include forming sets of layers. The set of layers may include parts or portions of the fluid conduit and/or supports.

Abstract: Systems, methods, and other embodiments associated with a framework for compliance report generation are described. In one embodiment, a method includes receiving a data source definition of a set of data sources comprising data for populating compliance reports. The example method may also include retrieving a compliance report definition for a compliance report for a reporting entity. The example method may also include constructing and rendering a user interface populated with a set of user interface elements generated based upon the set of data sources and the compliance report definition. The example method may also include generating the compliance report according to the compliance report definition. The compliance report is populated with data from the set of data sources. The compliance report is sent over a computing network to a remote computing device of the reporting entity.

Abstract: An aircraft fuel tank inerting system includes an inlet, an oxygen absorption unit, and a vent to discharge oxygen from the system. The inlet may be configured to be in fluid communication with a ullage of a fuel tank. In embodiments, the oxygen absorption unit is in communication with the inlet and includes a chamber, a temperature reversible oxygen absorption medium within said chamber, and a temperature controller for selectively heating or cooling the medium. The reversible oxygen absorption medium may be a medium which absorbs oxygen by chemisorption.

Abstract: An aspect of the present disclosure facilitates transferring data from multiple data sources to desired data targets. In one embodiment, meta-data specifying multiple use cases is maintained, with each use case indicating an import procedure and a corresponding condition to be satisfied by a set of import parameters such that the import procedure is executed for importing of data upon satisfaction of the corresponding condition. In response to receiving an import connector requesting transfer of data from data sources to data targets, a use case is selected having the condition which is satisfied by the respective values for the corresponding import parameters received in the import connector. The execution of the import procedure indicated by the selected use case is then initiated to import data from the data sources to the data targets.