Jose Grana Otero

Title: Jose Grana Otero and Aircraft Drainage Innovations

Introduction

Jose Grana Otero is an inventor based in Getafe, Spain, whose patent work focuses on drainage systems for aircraft compartments. His listed portfolio includes 2 patents, including inventions designed to discharge liquids while accounting for aircraft pressure conditions and aerodynamic performance.

Latest Patents

One of Otero’s patents, “Drainage mast of the compartment of an aircraft subjected to a negative pressure,” describes a mast that drains liquid from an aircraft compartment when its internal pressure is below the outside pressure. Its design uses a decreasing cross-sectional area and an angled, symmetrical configuration intended to drain effectively without active pressure-control devices or significant aerodynamic disturbance.

His other patent, “Drainage mast of the compartment of the auxiliary power unit of an aircraft,” concerns draining liquids from an aircraft’s auxiliary power unit (APU) compartment. The mast connects to the compartment at one end and discharges liquid to the atmosphere at the other, with a section whose cross-sectional area decreases toward the outlet. The patent also describes an aircraft incorporating the drainage mast.

Career Highlights

Otero’s listed inventions address practical aircraft engineering challenges: removing liquid from compartments while accommodating pressure differences, airflow, and the need for effective drainage. His work is associated with Airbus Operations S.L.

Collaborations

His listed coworkers include Ignacio Esteban Parra Fabian and Carlos Casado Montero. Their names appear alongside Otero’s professional and patent-related information.

Conclusion

Jose Grana Otero’s two listed patents focus on aircraft drainage masts for general compartments and APU compartments, reflecting an engineering emphasis on reliable liquid removal and aircraft-compatible design.