Apparatus for eliminating noise in the flow of fluids

• US 4,079,754 A
• Filed: 01/14/1977
• Issued: 03/21/1978
• Est. Priority Date: 01/14/1977
• Status: Expired due to Term

• Current Assignee: Delaware Capital Formation Incorporated (Dover Corporation)
• Original Assignee: Sargent Industries, Inc. (Dover Corporation)
• Inventors: Porter, Don B.
• Primary Examiner(s): Bell, Houston S.
• Application Number:
  US05/759,543
• Time in Patent Office: 431 Days
• Field of Search: 138/37-46, 137/629.3, 137/629.37, 137/629.33, 137/629.28, 291/118, 291/27, 291/209, 291/210, 291/211
• US Class Current: 138/42
• CPC Class Codes: F15D 1/02 in pipes or conduits
• CPC Class Codes: F16L 55/027 Throttle passages

Abstract

A member having first and second opposite ends for a flow of fluid from each end to the opposite end. The member is provided with openings at each end for receiving fluid into the member and for transferring the fluid from the member at the other end.

A first plurality of lands is provided in the member at spaced positions between the first and second opposite ends to define channels. The lands have passages at spaced positions in each land for the flow of the fluid through the passages between adjacent channels. The passages in each land have staggered positions in a direction transverse to the direction between the first and second ends to provide for a separation of the fluid flowing through each passage into two separate eddies in opposite directions. These eddies flow through the two adjacent passages in the next land.

A second plurality of lands is provided in the member at spaced positions in each channel in the transverse direction. The lands in the second plurality have orifices or passages through which the eddies flow from the passages in the previous land to the passages in the next land.

A plurality of the members may be tightly stacked. Each member has a flat surface. The lands may be flush with the flat surfaces and the passages may be recessed. Alternatively, the passages may be flush with the flat surfaces and the lands may be raised.

Claims

1. In combination for providing a quiet and controlled flow of fluid,

at least one disc having openings at opposite ends for receiving fluid at either end and for providing for a flow of fluid outwardly at the other end,

the disc being provided with annular lands at spaced positions in the radial direction to define annular channels between the lands,

the disc being provided with passages in the annular lands at spaced circumferential positions to provide first passages for the radial flow of the fluid between successive channels, the passages in each of the annular lands being staggered in the circumferential direction relative to the passages in the adjacent lands,

the disc being provided, at spaced positions in the circumferential directions, with radial lands extending between adjacent pairs of the annular lands and having radial interruptions to define second passages for the annular flow of the fluid in the channels.

2. The combination set forth in claim 1 wherein

a plurality of discs constructed as set forth in claim 1 are disposed in a stacked relationship.

3. The combination set forth in claim 1 wherein each of the radial lands is disposed, in the circumferential direction, between the closest one of the first passages providing for the flow of the fluid to the radial land and the closest one of the first passages receiving the flow of the fluid from the radial land.

4. The combination set forth in claim 3 wherein

the disc has a flat surface and the radial and circumferential lands constitute portions raised from the flat surface of the disc and the first and second passages and the openings are substantially flush with the flat surface of the disc.

5. The combination set forth in claim 3 wherein

the disc has a flat surface and the radial and the circumferential lands are flush with the flat surface of the disc and the first and second passages and the openings are recessed from the flat surface of the disc.

6. The combination set forth in claim 3 wherein

the annular channels between the openings are recessed.

7. In combination for providing a quiet and controlled flow of fluid,

a member having first and second opposite ends and constructed to provide for a flow of fluid from either of the first and second ends to the other of the first and second ends, the member having openings at the first and second ends for receiving the fluid into the member and for transferring the fluid from the member,

a first plurality of lands provided in the member, at spaced positions between the first and second opposite ends of the member, to define channels, the lands being constructed to define first passages at spaced positions in each land for the flow of the fluid through the passages between adjacent channels, the first passages in each land in the first plurality being staggered in position in a direction transverse to the direction between the first and second ends to provide for a separation of the fluid flow through each of the first passages into two separate eddies in opposite directions for passage of the fluid through the two adjacent passages in the next land in the first plurality, and

a second plurality of lands provided in the member at spaced positions in each channel, the lands in the second plurality being disposed to define second passages through which the eddies of fluid flow from the first passages in the previous land in the first plurality to the first passages in the next land in the first plurality.

8. The combination set forth in claim 7 wherein

a plurality of members constructed as set forth in claim 7 are provided and wherein the members are maintained in a tightly stacked relationship.

9. The combination set forth in claim 7 wherein

the openings at each end are larger than the passages and the passages in the land adjacent the openings are larger than the passages intermediate the opposite ends.

10. The combination set forth in claim 9 wherein

the member has a flat surface and the lands on the first and second pluralities are raised from the flat surfaces and the openings and the first and second passages are flush with the flat surface.

11. The combination set forth in claim 9 wherein

the member has a flat surface and the lands in the first and second pluralities are flush with the flat surface and the openings and the passages are recessed in the flat surfaces.

12. The combination set forth in claim 11 wherein

the channels are recessed between the lands in the second plurality to facilitate the eddy of the fluid in the channels.