Back to results
US 11,691,751 B2Granted
Accumulator on a fuel line of an aircraft
AssigneeSafran Aircraft Engines
InventorLoic Pora
Life of this patent
Estimating the term…
Abstract
An accumulator designed to damp the pressure waves of the hydraulic shocks originating in a downstream section of a duct is arranged inside the duct, with the opening of the accumulator pointing downstream. This results in excellent absorption of the pressure wave and protection of the circuit from possible accumulations of air, water or ice, there being no areas where the flow stagnates. Immersing the accumulator in the flow also makes it possible to ensure that the equipment is protected in the event of a fire.
Claims10
An aircraft fuel system comprising:
- a piping extending between a fuel tank and an engine, and
- a hydraulic accumulator opening into the piping,
- wherein the accumulator is surrounded by the piping, the accumulator includes a filtering outer wall defining an annular clearance with the piping in which fuel flows, the filtering outer wall and the piping are coaxial, and a port of the accumulator is directed to the engine,
- wherein the accumulator extends at a center position of the piping, and is supported by the piping with a support which connects the accumulator and the piping, and
- wherein the support is a perforated cylindrical partition wall coaxial to the filtering outer wall and to the piping.
2 more elements
An aircraft fuel system, comprising:
- a piping extending between a fuel tank and an engine, and
- a hydraulic accumulator opening into the piping,
- wherein the accumulator is surrounded by the piping, the accumulator includes a filtering outer wall defining an annular clearance with the piping in which fuel flows, the outer wall and the piping are coaxial, and a port of the accumulator is directed to the engine, the hydraulic accumulator comprising a central gaseous volume that is separated from fuel flow by a deformable continuous wall,
- wherein the accumulator extends at a center position of the piping, and is supported by the piping by a support which connects the accumulator and the piping, and
- wherein the support is a perforated cylindrical partition wall coaxial to the filtering outer wall and to the piping.
2 more elements
Dependencies are inferred from the claim text.