Abstract: Aspects of the disclosure are directed to a seal comprising: a first fitting configured to couple to a first disk, and a curvic joint including curvic teeth, where a first distance between the first fitting and the curvic teeth is equal to or greater than a first thickness of the first disk. In some embodiments, an engine comprises: a compressor disk, a turbine disk, and a seal including: a first fitting configured to couple to the turbine disk, a second fitting configured to couple to the compressor disk, and a curvic joint including curvic teeth, where a first axial distance between the first fitting and the curvic teeth is greater than or equal to a first radial thickness of the turbine disk.

Abstract: Methods of manufacturing toothed components for gas turbine engines are provided. The methods include forming a first tooth in the component with a top land, a bottom land, a side wall extending therebetween, and a fillet radius transitioning between the side wall and the bottom land, forming a second tooth in the component adjacent the first tooth, the second tooth having a top land, a bottom land, a side wall extending therebetween and facing the first tooth, and a fillet radius transitioning between the side wall and the bottom land, the bottom land of the second tooth extending toward the bottom land of the first tooth, wherein the bottom lands define a gable area of the component, and forming a stress relief feature in the gable area such that the stress relief feature reduces a stress concentration near the gable area during operation of the toothed component.

Abstract: The present disclosure includes a system for balancing a turbine disk stack, including a high pressure turbine disk stack. A flange is grooved to accommodate and orient a slip ring. Balancing weights are attached to the slip ring to balance the turbine disk stack during rotation of a gas turbine engine.

Abstract: Disclosed is a coupling system comprising joints configured to friction lock under compressive pressure via tapered teeth for joining rotating components, which may be rotating components of a gas turbine, or other engine. The coupling system provides the alignment orientation for the joined components, and eliminates the need for extraneous fasteners, bolts, interference fits and/or keying arrangements. The coupling system further enables material optimization by allowing for use of different materials throughout different engine sections, depending on the operating parameters.

Abstract: Disclosed is a coupling system comprising joints configured to friction lock under compressive pressure via tapered teeth for joining rotating components, which may be rotating components of a gas turbine, or other engine. The coupling system provides the alignment orientation for the joined components, and eliminates the need for extraneous fasteners, bolts, interference fits and/or keying arrangements. The coupling system further enables material optimization by allowing for use of different materials throughout different engine sections, depending on the operating parameters.

Abstract: Disclosed is a coupling system comprising joints configured to friction lock under compressive pressure via tapered teeth for joining rotating components, which may be rotating components of a gas turbine, or other engine. The coupling system provides the alignment orientation for the joined components, and eliminates the need for extraneous fasteners, bolts, interference fits and/or keying arrangements. The coupling system further enables material optimization by allowing for use of different materials throughout different engine sections, depending on the operating parameters.

Abstract: Aspects of the disclosure are directed to a seal comprising: a first fitting configured to couple to a first disk, and a curvic joint including curvic teeth, where a first distance between the first fitting and the curvic teeth is equal to or greater than a first thickness of the first disk. In some embodiments, an engine comprises: a compressor disk, a turbine disk, and a seal including: a first fitting configured to couple to the turbine disk, a second fitting configured to couple to the compressor disk, and a curvic joint including curvic teeth, where a first axial distance between the first fitting and the curvic teeth is greater than or equal to a first radial thickness of the turbine disk.

Abstract: Methods of manufacturing toothed components for gas turbine engines are provided. The methods include forming a first tooth in the component with a top land, a bottom land, a side wall extending therebetween, and a fillet radius transitioning between the side wall and the bottom land, forming a second tooth in the component adjacent the first tooth, the second tooth having a top land, a bottom land, a side wall extending therebetween and facing the first tooth, and a fillet radius transitioning between the side wall and the bottom land, the bottom land of the second tooth extending toward the bottom land of the first tooth, wherein the bottom lands define a gable area of the component, and forming a stress relief feature in the gable area such that the stress relief feature reduces a stress concentration near the gable area during operation of the toothed component.

Abstract: Disclosed is a coupling system comprising joints configured to friction lock under compressive pressure via tapered teeth for joining rotating components, which may be rotating components of a gas turbine, or other engine. The coupling system provides the alignment orientation for the joined components, and eliminates the need for extraneous fasteners, bolts, interference fits and/or keying arrangements. The coupling system further enables material optimization by allowing for use of different materials throughout different engine sections, depending on the operating parameters.

Abstract: The present disclosure includes a system for balancing a turbine disk stack, including a high pressure turbine disk stack. A flange is grooved to accommodate and orient a slip ring. Balancing weights are attached to the slip ring to balance the turbine disk stack during rotation of a gas turbine engine.

Abstract: An example retaining ring removal tool includes a shaft extending along an axis from a first end to a second end, and at least one tapered tab extending axially from the first end of the shaft at a radially outer perimeter of the shaft.

Abstract: An example retaining ring removal tool includes a shaft extending along an axis from a first end to a second end, and at least one tapered tab extending axially from the first end of the shaft at a radially outer perimeter of the shaft.

Abstract: A dynamic motion and distance measuring device for estimating and measuring speed and distance covered by a subject engaged in an athletic endeavor and more particularly to measuring and estimating the speed and distance and providing a relative indication of a measured speed and distance to an optimal speed and distance and/or time including finish time of the subject engaged in an athletic event, even where the event is occurring in changing environment or terrain conditions where remote data collection and signal reception is inconsistent and variable.

Abstract: A highly efficient Automated Material Handling System (AMHS) that allows an overhead hoist transport vehicle to load and unload Work-In-Process (WIP) parts directly to/from one or more WIP storage units included in the system. The AMHS includes an overhead hoist transport subsystem and at least one vertical carousel stocker having a plurality of storage bins. The overhead hoist transport subsystem includes an overhead hoist transport vehicle traveling along a suspended track defining a predetermined route, which runs adjacent to the carousel stocker, thereby allowing the overhead hoist transport vehicle to access a WIP part directly from one of the storage bins. At least one of the storage bins includes a movable shelf operative to move laterally from a first position along the carousel path to a second position near the overhead hoist transport vehicle.

Abstract: A reticle management system is disclosed that provides data storage and retrieval of data associated with each reticle, reticle carrier, and certain system attributes and also for the efficient movement and storage of reticles and reticle carriers. The reticle management system includes a reticle management controller, a central reticle database, and one or more reticle stockers that include a stocker controller, a stocker database, and a stocker unit. The reticle management controller is coupled to the central reticle database and each of the stocker controllers. Each stocker controller collects data on the reticles, reticle carriers, or both, that are stored within the associated stocker unit and stores this data in the stocker database. The reticle management controller retrieves the data in each stocker database via the associated stocker controller and stores this data in central reticle database.

Abstract: A traffic management system for an automatic material handling system (AMHS) divides time into a series of discrete time periods and analyzes a plurality of move requests that are to be executed within a particular time period is disclosed. The traffic management system receives a plurality of move requests from the AMHS and determines how many move requests are to be executed and selects which move requests in particular will be executed in the next time period. The traffic management system prioritizes the selected move requests by analyzing each source node and destination node contained in a move request in conjunction with other node traffic data. The traffic management system analyzes this data to ensure that a move request is not executed if a material transport vehicle would be dispatched to a node having a node traffic balance value that exceeds a predetermined value and a node traffic density value that exceeds a predetermined value.

Abstract: An integrated scheduler/material control system that receives a plurality of material move requests and prioritizes these move requests according to a critical pick-up time associated with each move request. Using vehicle utilization data from the traffic management system, the integrated scheduler/material control system determines the number of move requests to be deferred to a later time period and then calculates the number of move requests to be executed in the current time period. The integrated scheduler/material control system then passes the move requests and the number of move requests to be executed to the traffic management system in the prioritized order.

Abstract: A traffic management system for an automatic material handling system (AMHS) divides time into a series of discrete time periods and analyzes a plurality of move requests that are to be executed within a particular time period is disclosed. The traffic management system receives a plurality of move requests from the AMHS and determines how many move requests are to be executed and selects which move requests in particular will be executed in the next time period. The traffic management system prioritizes the selected move requests by analyzing each source node and destination node contained in a move request in conjunction with other node traffic data. The traffic management system analyzes this data to ensure that a move request is not executed if a material transport vehicle would be dispatched to a node having a node traffic balance value that exceeds a predetermined value and a node traffic density value that exceeds a predetermined value.

Abstract: A reticle management system is disclosed that provides data storage and retrieval of data associated with each reticle, reticle carrier, and certain system attributes and also for the efficient movement and storage of reticles and reticle carriers. The reticle management system includes a reticle management controller, a central reticle database, and one or more reticle stockers that include a stocker controller, a stocker database, and a stocker unit. The reticle management controller is coupled to the central reticle database and each of the stocker controllers. Each stocker controller collects data on the reticles, reticle carriers, or both, that are stored within the associated stocker unit and stores this data in the stocker database. The reticle management controller retrieves the data in each stocker database via the associated stocker controller and stores this data in central reticle database.

Abstract: A method and system is disclosed for dynamically routing a material transport vehicle using traffic based parameters. A controller directed to allocate a material transport vehicle to a particular node, selects the material transport vehicle that is physically closest to the particular node. The controller calculates an optimal route by identifying the possible routes between the initial node of the material transport vehicle and the destination node, and analyzing each of the nodes within each identified route according to a metric function by calculating a metric function value for each identified route. The controller then selects the route for the material transport vehicle having the smallest metric function value. The metric function may include parameters associated with each of the nodes in the material transport system including a node-to-node distance parameter, a node crossing parameter, and the number of material transport vehicles in a queue at each node within the route.