High energy loss device

• US 4,127,146 A
• Filed: 02/22/1977
• Issued: 11/28/1978
• Est. Priority Date: 09/09/1975
• Status: Expired due to Term

• Current Assignee: Control Components Incorporated (IMI PLC)
• Original Assignee: Control Components Incorporated (IMI PLC)
• Inventors: Self, Richard E.
• Primary Examiner(s): Rosenthal, Arnold
• Application Number:
  US05/770,548
• Time in Patent Office: 644 Days
• Field of Search: 137/625.3, 137/625.37, 137/549, 137/545, 251/127, 138/43, 138/42, 181/69, 181/60, 181/36 A
• US Class Current: 137/625.3
• CPC Class Codes: F16K 47/08 for decreasing pressure or noise level and having a throttling member separate from the closure member , e.g. screens, slots, labyrinths
• CPC Class Codes: F16L 55/02 Energy absorbers; Noise absorbers in valves F16K47/00
• CPC Class Codes: F16L 55/02781 The regulating element being provided with radial outputs
• CPC Class Codes: Y10T 137/86718 Dividing into parallel flow paths with recombining
• CPC Class Codes: Y10T 137/86734 With metering feature
• CPC Class Codes: Y10T 137/86791 Piston

Abstract

A more compact high energy loss device is provided having a series of uniquely formed multiturn labyrinth assemblies which reduce the pressure of a fluid flowing therethrough. The inlet of the labyrinth assemblies is formed according to a substantially circular configuration to have a predetermined inlet area while the outlet is formed according to a substantially scalloped configuration to provide an outlet area greater than the inlet area. The scalloped configuration of the outlet yields an outlet area which is also greater than if the outlet were of circular configuration. The scalloped outlet configuration also makes the labyrinth assembly less susceptible to circumferential thermal stresses resulting from high temperature fluids passing through the device producing high temperature inlet conditions and low temperature outlet conditions.

Claims

1. A high energy loss fluid flow controlling device comprising:

a plurality of members joined together into a rigid structure to define a series of high energy loss paths for fluid flow, said plurality of members including series of disks having abutting surfaces and forming high energy loss paths therebetween for fluid flow therealong wherein one of the disks of said series of disks has a series of labyrinth paths formed therein to subject the fluid to a plurality of turns within the plane of said disk between the inlet and the outlet of the disk;

inlet means centrally formed in said members along a first configuration to define a predetermined inlet area for conducting fluid to the series of paths formed by said plurality of members; and

outlet means formed along a scalloped surface substantially concentric with said inlet means and extending the entire height of said rigid structure to provide a series of openings for exhausting fluid from the high energy loss path of said rigid structure.

2. A high energy loss device as set forth in claim 1 wherein said inlet means includes a substantially circular bore extending through said plurality of members to provide a series of openings for fluid flow into the high energy loss path of said rigid structure.

3. A high energy loss device as set forth in claim 1 including a plug member movable within the bore of said rigid structure to vary the inlet area exposed to fluid flow through said rigid structure.