Triangular Polyhedron Gearbox for Compact Gas Turbine Engine

The gearbox is divided into multiple modular housing segments (first housing portion, second housing portion, third housing portion) that can be independently configured. Each housing portion can accommodate different accessory drive components, allowing the compact gearbox to be customized for specific space constraints while maintaining a manageable structural complexity through standardized modular interfaces.

The patent employs a three-dimensional triangular polyhedron configuration with housing portions arranged at different spatial orientations. The first, second, and third housing portions are positioned to form a triangular arrangement with divergent auxiliary gear drives projecting in different directions, effectively utilizing three-dimensional space between the core nacelle and engine core to accommodate multiple accessory drives without increasing overall footprint.

The gearbox housing is designed with universal mounting surfaces and standardized auxiliary gear drive interfaces that can accommodate multiple types of accessory drive components. The first, second, and third housing portions provide standardized mounting locations that can accept various accessory drives (such as generator drives, pump drives, or compressor drives) using common connection mechanisms, thereby reducing the need for multiple dissimilar specialized components.

The gearbox incorporates adjustable and reconfigurable mounting surfaces on the housing portions that can be adapted to different accessory drive configurations. The modular housing design allows for reconfiguration of the auxiliary gear drives and mounting positions to accommodate different accessory requirements, providing dynamic adaptability while maintaining standardized interfaces that reduce spare parts inventory.

The housing is segmented into multiple removable portions (first housing portion, second housing portion, third housing portion) that can be independently accessed and removed. This segmentation maintains the structural stability of the overall gearbox while providing easy access to the auxiliary gear drives and accessory components for maintenance and adjustment, as each housing portion can be separately opened or removed without disassembling the entire structure.

The housing incorporates adjustable mounting surfaces and reconfigurable support structures that allow accessory drive components to be mounted, adjusted, and secured at optimal positions. The dynamic adjustment capability enables maintenance personnel to access and adjust components more easily while maintaining stable mounting during operation, resolving the contradiction between fixed stability and operational accessibility.