Device for recovering lubrication oil ejected by centrifugal effect in a turbine engine

Patent metadata

Field	Value
Publication number	US-10280795-B2
Application number	US-201715618915-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Jun 10, 2016
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

A device for recovering oil injected by centrifugal effect in a turbine engine, comprising a substantially circular ring around an axis, the ring comprising a first part forming a basin surrounding the axis and having an opening turned radially inward, so as to recover the oil injected radially across from the opening, and a second part forming a substantially toroidal chamber, radially open outward at a low point, so as to allow oil to escape, a passage being arranged between the basin and the chamber substantially over the entire circumference around the axis so as to cause the oil recovered by the basin to enter the chamber, wherein a rim is arranged between a radially inner bottom of the chamber and the passage, so as to contain the oil accumulating in this radially inner bottom of the chamber, and in some embodiments, at a high point.

First claim

The embodiments of the disclosure in which an exclusive property or privilege is claimed are defined as follows:

1. A device for recovering oil injected by centrifugal effect in a turbine engine, comprising:
a substantially circular ring around an axis, the ring comprising a first part forming a basin surrounding the axis and having an opening turned radially inward, so as to recover the oil injected radially across from said opening, and a second part forming a substantially toroidal chamber, radially open outward in an angular sector surrounding a low point along a direction perpendicular to the axis, so as to allow oil to escape;
a passage arranged between the basin and the chamber substantially over the entire circumference of the ring, so as to cause the oil recovered by the basin to enter the chamber; and
a rim arranged between a radially inner bottom of the chamber and said passage, so as to contain the oil accumulating in this radially inner bottom of the chamber.

2. The oil recovery device according to claim 1 , wherein, inside the angular sector surrounding the low point, the chamber has a radially outer wall open to allow the oil to flow.

3. The oil recovery device according to claim 1 , wherein the passage is formed by an opening in a part shared by the basin and the chamber with a side wall substantially transverse relative to the axis.

4. The oil recovery device according to claim 1 , wherein the basin includes a plurality of fins distributed circumferentially and arranged to steer the oil toward the passage.

5. The oil recovery device according to claim 4 , wherein the passage opens onto a wall of the lateral basin in the axial direction, and the fins include a surface that bears on a lateral edge of the basin axially opposite the passage and that rejoins the passage while having an orientation substantially parallel to the axis at the latter.

6. The oil recovery device according to claim 1 , wherein walls of the chamber extend radially outside said passage.

7. The oil recovery device according to claim 1 , wherein the chamber includes apertures on a part of its walls that is radially outside the passage.

8. The oil recovery device according to claim 7 , further comprising an auxiliary trough communicating with said apertures and arranged to guide the oil escaping through the apertures toward the low point.

9. The oil recovery device according to claim 8 , further comprising a circular casing surrounding the ring and including a flange maintaining the ring, the auxiliary trough being formed between the flange and radially outer walls of the ring.

10. A turbine engine including an oil recovery device according to claim 1 , the device being installed such that the opening of the basin is placed across from a means for discharging oil from a rotary component by centrifugation in a transverse plane.

11. A turbine engine including an oil recovery device according to claim 1 , the device being installed such that the opening of the basin is placed across from a discharge orifice configured to discharge oil from a rotary component by centrifugation in a transverse plane.

12. The oil recovery device according to claim 1 , wherein the rim arranged at a high point opposite the low point.

Assignees

• Safran Aircraft Engines

Inventors

• Lao Jérémy Phorla
• Belmonte Olivier
• Mouton Clémentine Charlotte Marie

Classifications

• F01D25/18 Primary

  Lubricating arrangements (of machines or engines in general F01M) · CPC title

• F02C7/06

  Arrangements of bearings (bearings F16C); Lubricating ({of turbo machines F01D25/18; of machines or} engines in general F01M) · CPC title

• F16H57/0479

  Gears or bearings on planet carriers · CPC title

• Y02T50/671

  Cross-Sectional Technologies · mapped topic

• F02C7/36

  Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user ({F02C3/107 - F02C3/13 and} F02C7/32 take precedence; couplings for transmitting rotation F16D; gearing in general F16H) · CPC title