Browse Prior Art Database

Fluid Oscillator

IP.com Disclosure Number: IPCOM000097396D
Original Publication Date: 1962-Nov-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Mitchell, AE: AUTHOR

Abstract

The fluid oscillator is built of a single-sided, monostable fluid amplifier by providing a single feedback connection from its stable outlet to the control channel.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Fluid Oscillator

The fluid oscillator is built of a single-sided, monostable fluid amplifier by providing a single feedback connection from its stable outlet to the control channel.

A streaming medium flowing along a solid boundary wall tends to attach to such wall. This is based on the so-called Coanda effect. The main jet emerging from main inlet nozzle 11 tends to attach to wall 12 and to exhaust through outlet
13. The feedback connection 14 leading to control port 15 causes the jet to separate from wall 12 and to flow into the output opening 16. However, the ceasing control signal at port 15 causes the jet to switch over and the process is repeated.

The power of the control flow through port 15 is influenced by adjusting the additional steady control flow emerging from a bypass 16 of the power supply to control channel 17 by valve 18. The open areas 19 and 20 make the device independent from the impedance loads connected to output opening 16. By additional control port 21, the oscillator is controlled or modified by an external source.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]