Device for conditioning flow of working fluids

• US 10,465,687 B2
• Filed: 08/09/2017
• Issued: 11/05/2019
• Est. Priority Date: 02/23/2015
• Status: Active Grant

• Current Assignee: Roots Blowers LLC
• Original Assignee: Howden Roots LLC (Ingersoll Rand, Inc.)
• Inventors: Husted, Dale E.
• Primary Examiner(s): Huynh, Hai H
• Application Number:
  US15/672,798
• Publication Number:
  US 20180023572A1
• Time in Patent Office: 818 Days
• Field of Search: 4152082
• CPC Class Codes: F04C 18/126 with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
• CPC Class Codes: F04C 2270/13 Noise
• CPC Class Codes: F04C 23/006 having complementary function
• CPC Class Codes: F04C 29/0035 Equalization of pressure pulses silencing F04C29/06
• CPC Class Codes: F04C 29/06 Silencing gas-flow silencers or exhaust apparatus for machines or engines in general F01N
• CPC Class Codes: F04C 29/12 Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• CPC Class Codes: F04D 29/444 Bladed diffusers

Abstract

The disclosure describes a flow conditioning device for dampening pulses and improving performance of a compressor. In one approach, a diffuser device includes a housing member having a first end and a second end, the housing member coupled to an outlet of a compressor, and a diffuser member disposed within the housing member. The diffuser member is in fluid communication with a working fluid delivered from the compressor, and includes a core member extending along a longitudinal axis of the diffuser member, and a plurality of flutes extending radially from the core member. In some approaches, the plurality of flutes and an inner surface of the housing define a plurality of fluid channels for delivering the working fluid from the first end to the second end of the housing member. In some approaches, the diffuser member is rotatably coupled to the housing member.

Claims

1. An assembly comprising:

a housing member having a first end and a second end, the housing member coupled to a rotary displacement device such that the housing member is external to the rotary displacement device; and

a diffuser member disposed within the housing member, the diffuser member including;

a core member extending along a longitudinal axis of the diffuser member; and

a plurality of flutes extending radially from the core member.

2. The assembly of claim 1, wherein each of the plurality of flutes includes a flute body extending along a length of the longitudinal axis.

3. The assembly of claim 1, wherein the rotary displacement device is a compressor.

4. The assembly of claim 3, wherein the first end of the housing member is coupled to the compressor to receive a working fluid from the compressor.

5. The assembly of claim 4, the compressor comprising:

an inlet for receiving the working fluid; and

an outlet for delivering the working fluid to the housing member, the outlet including an outlet housing containing a portion of the diffuser member extending beyond the first end of the housing member.

6. The assembly of claim 5, further comprising a first conduit coupled to the inlet of the compressor and a second conduit coupled to the second end of the housing member.

7. The assembly of claim 1, wherein the diffuser member is rotatably coupled to the housing member.

8. The assembly of claim 1, the plurality of flutes and an inner surface of the housing member defining a plurality of fluid channels.

9. The assembly of claim 8, the plurality of fluid channels extending helically around the core member.

10. A compressor assembly comprising:

a compressor; and

a diffuser device coupled to the compressor, the diffuser device comprising;

a housing member having a first end and a second end, the housing member coupled to an outlet of the compressor such that the housing member is external to the compressor and receives a working fluid from the outlet of the compressor; and

a diffuser member disposed within the housing member, the diffuser member including a core member extending along a central longitudinal axis of the diffuser member and a plurality of flutes extending radially from the core member.

11. The compressor assembly of claim 10, wherein each of the plurality of flutes includes a flute body extending along a length of the central longitudinal axis.

12. The compressor assembly of claim 10, wherein a portion of the diffuser member extends beyond the first end of the housing member.

13. The compressor assembly of claim 12, the compressor comprising an outlet housing surrounding the portion of the diffuser member.

14. The compressor assembly of claim 10, further comprising a first conduit coupled to an inlet of the compressor and a second conduit coupled to the second end of the housing member.

15. The compressor assembly of claim 10, wherein the diffuser member is rotatably coupled to the housing member.

16. The compressor assembly of claim 10, the plurality of flutes and an inner surface of the housing member defining a plurality of fluid channels.

17. The compressor assembly of claim 16, the plurality of fluid channels extending helically around the core member.

18. A diffuser device comprising:

a housing member having a first end and a second end, the housing member coupled to an outlet of a compressor such that the housing member is external to the compressor; and

a diffuser member disposed within the housing member, wherein the diffuser member is in fluid communication with a working fluid delivered from the compressor, and wherein the diffuser member comprises;

a core member extending along a longitudinal axis of the diffuser member; and

a plurality of flutes extending radially from the core member.

19. The diffuser device of claim 18, wherein each of the plurality of flutes includes a flute body extending along a length of the diffuser member in a swirl configuration.

20. The diffuser device of claim 18, the plurality of flutes and an inner surface of the housing member defining a plurality of fluid channels.