Compact single variable displacement pump fuel system with high pressure fuel oil cooler bypass and gas generator fault
US12428996B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2024 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Mar 28, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C9/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel system for a gas turbine engine includes a fuel control with an outlet for connection to a burner. The fuel system includes a first pump unit connected to a gear box. The first pump unit includes a first housing, a first drive shaft connected to the gearbox, and a main pump within the first housing and powered by the first drive shaft. A stability-shutoff valve is in the first housing and includes an inlet connected to an outlet of the main pump. A fuel-oil-cooler bypass valve is in the first housing and includes an inlet connected to an outlet of the stability-shutoff valve and an outlet connected to an inlet of the fuel control. The fuel system also includes a fuel oil cooler with a fuel inlet connected to the outlet of the stability-shutoff valve and a fuel outlet connected to the inlet of the fuel control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.