Device for retaining drained fluids for a propulsive assembly

Patent metadata

Field	Value
Publication number	US-10301973-B2
Application number	US-201415100225-A
Country	US
Kind code	B2
Filing date	Dec 2, 2014
Priority date	Dec 4, 2013
Publication date	May 28, 2019
Grant date	May 28, 2019

Abstract

A device for retaining drained fluids for a propulsive assembly includes a cavity for storing the drained fluids and two walls mounted at the opening of said cavity. The cavity has a fluid storage volume V 1 when the device is in a substantially vertical position, and each wall is configured such as to define a fluid storage volume (V 2 and V 3 respectively) in the cavity when the device is in a substantially horizontal position, each of the volumes V 2 and V 3 being at least equal to the volume V 1.

First claim

The invention claimed is:

1. Device for retaining drained liquids from a propulsion assembly, comprising a body defining a cavity that is configured to store the drained liquids and has a volume V 1 when the device is in a first position, said cavity comprising an upper opening through which the liquids are conveyed into the cavity, wherein the cavity comprises two walls in the region of said opening that are at least in part positioned one above the other and define a space therebetween, a first wall designed to define a volume V 3 for storing liquids in the cavity when the device is in a second position that is at a positive angle from the first position about a substantially horizontal axis, and a second wall designed to define a volume V 2 for storing liquids in the cavity when the device is in a third position that is at a negative angle from the first position about a substantially horizontal axis, each volume V 2 and V 3 being at least equal to the volume V 1 .

2. Device according to claim 1 , wherein the two walls are an upper wall and a lower wall, the upper wall defining an orifice for introducing the liquids into said space.

3. Device according to claim 2 , wherein said orifice is offset on one side from a vertical median plane (P) of the cavity.

4. Device according to claim 2 , wherein the lower wall extends below the orifice in the upper plate and defines a passage for liquids from the space to the cavity.

5. Device according to claim 4 , wherein said passage is offset from the vertical median plane (P) of the cavity on the side opposite that of said orifice.

6. Device according to claim 2 , wherein the lower wall is inclined relative to the upper wall.

7. Device according to claim 1 , further comprising a duct for discharging the overflow of the cavity, one end of said duct leading into said space.

8. Device according to, claim 1 , wherein the walls are attached to the body by welding or brazing.

9. Propulsion assembly, comprising a device according to claim 1 , said device being attached to a detachable cowl of a nacelle, which is hinged about a substantially horizontal axis to an element of the propulsion assembly.

10. Device according to claim 1 , wherein the first position is a substantially vertical position.

Assignees

• Snecma
• Safran Aircraft Engines

Inventors

• Leon Alexandre
• Brun Gilles

Classifications

• F05D2260/602

  Drainage · CPC title

• B64C1/1453

  Drain masts · CPC title

• F01D25/24

  Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045}) · CPC title

• F05D2250/75

  given by its similarity to a letter, e.g. T-shaped · CPC title

• F05D2220/323

  for aircraft propulsion, e.g. jet engines · CPC title