Oil system with helmholtz resonator damper in lube line

Patent metadata

Field	Value
Publication number	US-9982601-B2
Application number	US-201514726993-A
Country	US
Kind code	B2
Filing date	Jun 1, 2015
Priority date	Jun 1, 2015
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

An oil lubrication system is provided. The oil lubrication system may comprise an oil pump, a conduit fluidly coupled to the oil pump, and a damper fluidly coupled to the conduit. The damper may further comprise a volume configured to receive oil in response to a pulse event. A heat exchanger may also be fluidly coupled to the conduit. In various embodiments, the damper may comprise a spherical volume. The damper may be fluidly coupled to the conduit between the oil pump and the heat exchanger. An adapter may be mechanically coupled between the conduit and the damper. The adapter may comprise a passage in fluid communication with the conduit and the damper. The damper may further comprise a membrane. A gas or compressible fluid may be disposed in the damper on a first side of the membrane. The membrane may be configured to separate the gas from the oil.

First claim

What is claimed is:

1. An oil lubrication system, comprising:
a conduit;
a damper fluidly coupled to the conduit, wherein the damper comprises a volume configured to receive oil in response to a pulse event;
an adapter mechanically coupling the conduit and the damper, the adapter comprising: a first mounting structure having a mounting recess conforming to a negative defined by an outer surface of the conduit, a second mounting structure comprising an annulus configured to receive the damper, and a mounting appendage; and
a heat exchanger fluidly coupled to the conduit.

2. The oil lubrication system of claim 1 , wherein the mounting appendage further comprises a third mounting structure coupled to a mounting bracket.

3. The oil lubrication system of claim 1 , wherein the volume is spherical.

4. The oil lubrication system of claim 1 , wherein the damper is fluidly coupled to the conduit on an inlet side of an oil component.

5. The oil lubrication system of claim 1 , wherein the adapter comprises a passage in fluid communication with the conduit and the damper between the first mounting structure and the second mounting structure.

6. The oil lubrication system of claim 5 , wherein the damper comprises a first threaded connection and a membrane that divides the volume into a first subvolume and a second subvolume, wherein the annulus of the adapter further comprises a second threaded connection.

7. The oil lubrication system of claim 6 , wherein the damper comprises at least one of a gas or a compressible fluid disposed in the first subvolume.

8. The oil lubrication system of claim 7 , wherein the membrane is configured to flex in response to pressure.

9. An oil system on a gas turbine engine, comprising:
a conduit;
an oil pump fluidly coupled to the conduit;
a damper fluidly coupled to the conduit, wherein the damper comprises a first volume configured to receive oil in response to a pulse event;
an adapter mechanically coupling the conduit and the damper, the adapter comprising: a first mounting structure having a mounting recess conforming to a negative defined by an outer surface of the conduit, a second mounting structure comprising an annulus configured to receive the damper, and a mounting appendage; and
an oil component fluidly coupled to the conduit downstream from the damper.

10. The oil lubrication system of claim 9 , wherein the mounting appendage further comprises a third mounting structure coupled to a mounting bracket.

11. The oil system of claim 9 , wherein the first volume is spherical.

12. The oil system of claim 9 , wherein the damper is fluidly coupled to the conduit on an inlet side of the oil component.

13. The oil system of claim 9 , wherein the adapter comprises a passage in fluid communication with the conduit and the damper between the first mounting structure and the second mounting structure.

14. The oil system of claim 13 , wherein the damper comprises a first threaded connection and a membrane that divides the volume into a first subvolume and a second subvolume, wherein the annulus of the adapter further comprises a second threaded connection.

15. The oil system of claim 14 , wherein the damper comprises at least one of a gas or a compressible fluid disposed in the first subvolume.

16. The oil system of claim 15 , wherein the membrane is configured to flex in response to pressure.

17. A gas turbine engine, comprising:
a compressor;
a combustor aft of the compressor and in fluid communication with the compressor;
a turbine in fluid communication with the combustor; and
a lubrication system coupled to the gas turbine engine, comprising:
an oil pump,
a conduit fluidly coupled to the oil pump,
a damper fluidly coupled to the conduit, wherein the damper comprises a volume configured to receive oil in response to a pulse event,
an adapter mechanically coupling the conduit and the damper, the adapter comprising: a first mounting structure having a mounting recess to a negative defined by an outer surface of the conduit, a second mounting structure comprising an annulus configured to receive the damper, and a mounting appendage; and
a heat exchanger fluidly coupled to the conduit.

18. The gas turbine engine of claim 17 , wherein the mounting appendage further comprises a third mounting structure coupled to a mounting bracket, wherein the mounting bracket is coupled to a structure of the gas turbine engine.

19. The gas turbine engine of claim 17 , wherein the damper is mechanically coupled to the conduit between the oil pump and the heat exchanger by the adapter, the damper is in fluid communication with the first mounting structure and the second mounting structure is in fluid communication with the conduit, wherein the adapter further comprises a passage between the first mounting structure and the second mounting structure configured to transmit oil to the damper in response to a pulse event.

20. The gas turbine engine of claim 17 , wherein the damper comprises a first threaded connection and a membrane configured to separate at least one of a gas or a compressible fluid from the oil, wherein the annulus of the adapter further comprises a second threaded connection.

Assignees

• United Technologies Corp

Inventors

• Heims Eric J
• Troughton Andre Herman
• Snyder Ryan K
• Honan Jeffrey

Classifications

• F01D25/18

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

• F05D2260/98

  Lubrication · CPC title

• F01M11/02

  Arrangements of lubricant conduits · CPC title

• F01M5/002

  Cooling · CPC title

• F01M1/16

  Controlling lubricant pressure or quantity (rendering machines or engines inoperative or idling on lubricant pressure failure F01M1/22) · CPC title