Tank device of an aero engine with an appliance for introducing oil

Patent metadata

Field	Value
Publication number	US-9957838-B2
Application number	US-201514847553-A
Country	US
Kind code	B2
Filing date	Sep 8, 2015
Priority date	Sep 11, 2014
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A tank device of an aero engine, which has an inlet appliance for the supply of an air-oil volume flow into a tank space of the tank device, a separation appliance for the separation of oil from the air-oil volume flow that is supplied to the tank space, a conduit area which is confined by at least one wall and in which an air-oil volume flow can be guided in the area of the tank space at least in certain areas, and an outlet appliance, in the area of which a volume flow can be discharged via a valve appliance from the tank space of the tank device. At least one appliance for introducing oil is provided, by means of which oil can be supplied into the area of the conduit area substantially against a flow direction of the air-oil volume flow which is forming during operation in the conduit area.

First claim

The invention claimed is:

1. A tank device of an aero engine, comprising:
an inlet for supplying an air-oil volume flow into a tank space of the tank device,
an oil separator for receiving the air-oil volume flow supplied into the tank space and separating oil from the air-oil volume flow to form a reduced oil air-oil volume flow,
a conduit positioned in the tank space and confined by a wall for receiving and guiding the reduced oil air-oil volume flow from the oil separator,
an oil injector for injecting oil into the reduced oil air-oil volume flow guided through the conduit to form a further reduced oil air-oil volume flow, the oil injector arranged to inject the oil into the reduced oil air-oil volume in an injection direction substantially against a flow direction of the reduced oil air-oil volume flow guided through the conduit,
an outlet through which the further reduced oil air-oil volume flow can be discharged from the tank space, the outlet including a valve for controlling the further reduced oil air-oil volume flow through the outlet.

2. The tank device according to claim 1 , wherein the oil injector is arranged within the wall of the conduit.

3. The tank device according to claim 1 , wherein the oil injector is arranged outside of the wall of the conduit and oil can be introduced via the oil injector in a direction of an outlet opening of the conduit.

4. The tank device according to claim 3 , wherein the tank space includes an exterior wall and the oil injector is arranged at an exterior wall of the tank space.

5. The tank device according to claim 4 , wherein the conduit is cylindrical at least in certain portions.

6. The tank device according to claim 5 , wherein, in a mounted state of the tank device, the conduit includes a portion extending substantially in a vertical direction for guiding the reduced oil air-oil volume flow.

7. The tank device according to claim 6 , wherein the oil injector includes a nozzle for injecting the oil in a form of a spray cone.

8. The tank device according to claim 7 , wherein the oil injector provides a spray area for the oil that substantially covers an entire cross-sectional area of the conduit.

9. The tank device according to claim 8 , wherein the oil separator includes a cyclone confined by a wall area and that can be supplied with the air-oil volume flow from the inlet in a substantially tangential direction.

10. The tank device according to claim 9 , wherein the conduit is substantially arranged in an area of a central axis of the oil separator.

11. The tank device according to claim 10 , wherein the conduit directly adjoins the valve.

12. The tank device according to claim 10 , and further comprising a deflection area connecting to the conduit downstream with respect to the flow direction of the reduced oil air-oil volume flow within the conduit.

13. The tank device according to claim 1 , wherein the valve is a pressure limiting valve.

14. The tank device according to claim 1 , wherein the conduit is cylindrical at least in certain portions.

15. The tank device according to claim 1 , wherein, in a mounted state of the tank device, the conduit includes a portion extending substantially in a vertical direction for guiding the reduced oil air-oil volume flow.

16. The tank device according to claim 1 , wherein the oil injector includes a nozzle for injecting the oil in a form of a spray cone.

17. The tank device according to claim 1 , wherein the oil injector provides a spray area for the oil that substantially covers an entire cross-sectional area of the conduit.

18. The tank device according to claim 1 , wherein the oil separator includes a cyclone confined by a wall area and that can be supplied with the air-oil volume flow from the inlet in a substantially tangential direction.

19. The tank device according to claim 1 , wherein the conduit is substantially arranged in an area of a central axis of the oil separator.

20. The tank device according to claim 1 , and further comprising a deflection area connecting to the conduit downstream with respect to the flow direction of the reduced oil air-oil volume flow within the conduit.

Assignees

• Rolls Royce Deutschland Ltd & Co Kg

Inventors

• Beier Juergen
• Venter Gideon

Classifications

• F01D25/20

  using lubrication pumps · CPC title

• F01D25/12

  Cooling · CPC title

• F01M2013/0427

  the centrifuge device having no rotating part, e.g. cyclone · CPC title

• F05D2260/20

  Heat transfer, e.g. cooling · CPC title

• F02C7/06

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