US3674045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex valve fluid oscillator
Assignee: Bendix Corp
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Filing: 1970-07-14
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Granted: 1972-07-04
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Expires: 1990-07-14
Abstract
Abstract A vortex valve for use in a fluid oscillator circuit characterized by exhibiting a pronounced negative resistance characteristic in a portion of its operating range and by having a vortex chamber defined in part by a resiliently movable portion to provide a mechanical output in response to pressure variations in the chamber. This particular vortex valve is incorporated into a fluid oscillator arrangement to produce oscillatory pulses in the vortex chamber and responsive movements of the movable portion by adjusting the control and supply pressures and flows so as to be in the negative resistance range of the vortex valve while at the same time maintaining a constant supply flow.
Inventors
- 👤 William V Millman
- 👤 Endre A Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:32
CPC Classifications
G; G10; G10K; G10K9/00; G10K9/08; F; F15; F15C; F15C1/00; F15C1/22; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2109; Y10T137/2115
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
173 words
A vortex valve oscillator including: vortex valve means including a vortex chamber including a peripheral wall and an outlet located within said peripheral wall, supply pressure means for directing fluid into said chamber and including supply port means in said vortex chamber, control pressure means for directing fluid into said chamber offset from said outlet and including control port means in said vortex chamber, said vortex valve means including means providing a negative resistance range in an operating range of said vortex valve means producing reduced flow through said outlet in response to increases in pressure at one of said supply or control pressure means, intermediate positive resistance ranges therein wherein increased flow through said outlet is produced by increases in pressure at said one of said supply or control pressure means,and means for providing a constant flow by said one of said supply or control pressure means within the negative resistance range of said vortex means, whereby oscillations of the pressure of said one of said supply or control means are produced.
Claim 2
Dependent Claim
173 words
A vortex valve oscillator including: vortex valve means including a vortex chamber including a peripheral wall and an outlet located within said peripheral wall, supply pressure means for directing fluid into said chamber and including supply port means in said vortex chamber, control pressure means for directing fluid into said chamber offset from said outlet and including control port means in said vortex chamber, said vortex valve means including means providing a negative resistance range in an operating range of said vortex valve means producing reduced flow through said outlet in response to increases in pressure at one of said supply or control pressure means, intermediate positive resistance ranges therein wherein increased flow through said outlet is produced by increases in pressure at said one of said supply or control pressure means,and means for providing a constant flow by said one of said supply or control pressure means within the negative resistance range of said vortex means, whereby oscillations of the pressure of said one of said supply or control means are produced.
Claim 3
Dependent Claim
20 words
The oscillator of claim 1 wherein said vortex chamber is defined at least in part by a resiliently movable portion.
Claim 4
Dependent Claim
24 words
The oscillator of claim 2 wherein said resiliently movable portion is disposed axially of the fluid introduced by said supply and control port means.
Claim 5
Dependent Claim
66 words
A vortex valve comprising: a vortex chamber defined in part by a peripheral wall; a vortex outlet located intermediate said peripheral wall; means directing fluid into said chamber in a direction having a tangential component with respect to said outlet; and a resiliently movable portion defining at least in part said vortex chamber, whereby pressure variations in said chamber can pRoduce output movements of said portion.
Claim 6
Dependent Claim
66 words
A vortex valve comprising: a vortex chamber defined in part by a peripheral wall; a vortex outlet located intermediate said peripheral wall; means directing fluid into said chamber in a direction having a tangential component with respect to said outlet; and a resiliently movable portion defining at least in part said vortex chamber, whereby pressure variations in said chamber can pRoduce output movements of said portion.
Claim 7
Dependent Claim
28 words
The vortex valve of claim 4 wherein said movable portion is a resilient diaphragm member disposed opposite said outlet and defining the vortex chamber portion opposite said outlet.
Claim 8
Dependent Claim
46 words
The vortex valve of claim 4 wherein said means directing fluid into said chamber includes supply port means directing fluid into said chamber offset from said outlet and control port means directing fluid into said chamber offset from said outlet oppositely from said supply port means.
Claim 9
Dependent Claim
35 words
The vortex valve of claim 6 wherein said supply and control port means consist of openings into said vortex chamber of differing aggregative areas whereby a negative resistance range of said vortex valve is provided.
Claim 10
Dependent Claim
51 words
The vortex valve of claim 7 wherein said means directing fluid into said chamber further includes means maintaining the flow through either said supply port or control port means into said chamber at a constant rate, whereby chamber pressure oscillations will occur in the negative resistance range of said vortex valve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |