US3524459A - Electrolytic fluid amplifier - Google Patents

Electrolytic fluid amplifier Download PDF

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Publication number
US3524459A
US3524459A US702009A US3524459DA US3524459A US 3524459 A US3524459 A US 3524459A US 702009 A US702009 A US 702009A US 3524459D A US3524459D A US 3524459DA US 3524459 A US3524459 A US 3524459A
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US
United States
Prior art keywords
channel
electrodes
fluid amplifier
channels
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US702009A
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English (en)
Inventor
Karl Gunnar Brunberg
Goran Anders Henrik Hemdal
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/02—Details, e.g. special constructional devices for circuits with fluid elements, such as resistances, capacitive circuit elements; devices preventing reaction coupling in composite elements ; Switch boards; Programme devices
    • F15C1/04—Means for controlling fluid streams to fluid devices, e.g. by electric signals or other signals, no mixing taking place between the signal and the flow to be controlled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2082—Utilizing particular fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/218—Means to regulate or vary operation of device
    • Y10T137/2191—By non-fluid energy field affecting input [e.g., transducer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2229—Device including passages having V over T configuration
    • Y10T137/224—With particular characteristics of control input

Definitions

  • ABSTRACT An electrolytic liquid amplifier has an inlet 1 [54] E g E g B 5 AMPLIFIER channel section, a constricted channel section and a bifurraw cated outlet channel section connected serially for passing an [52] 0.8. CI. 137/815 electrolyte. Electrodes in the constricted channel section [51] Int. Cl F15c 1/04 when energized cause the generation of a gas which controls [50] Field of Search 137/815; the direction of flow of the electrolyte to one of the branches 235/201; 204/ of the bifurcated channel section.
  • ELECTROLYTIC FLUID AMPLIFIER This invention pertains to fluid amplifiers and more particularly to such amplifiers using electrolytes.
  • An object of the present invention is to provide an electrically controlled liquid operated fluid amplifier which is simple, requires little space and is cheaper to manufacture than the arrangements known in the prior art.
  • the fluid amplifier according to the invention is mainly characterized in that the liquid flowing through the amplifier is an electrolyte.
  • the liquid flowing through the amplifier is an electrolyte.
  • FIG. 1 shows an embodiment of the invention
  • FIG. 2 shows a modification of the embodiment according to FIG. 1.
  • FIG. 1 shows an electrolytic fluid amplifier which can control the liquid flow in two alternative directions.
  • the amplifier works in accordance with the following principle: An electrolyte E, which passes through a channel B having a constricted section F, can flow alternatively through two divergent channels C, and C Across the channel B there is a grid A, through which the electrolyte can flow.
  • the grid is connected to the positive pole of a direct voltage source V so that it forms an anode.
  • metal plates K, and K are arranged on partition walls of the channel situated opposite each other. These plates can be connected to the negative pole of the voltage source V to form cathodes.
  • the plates are furthermore placed in such a way that they are situated on each side of the dividing plane of the divergent channels with their symmetry plane passing through the centre lines of the channels.
  • the plates K, and K can be alternatively connected to the negative pole of the voltage source V by means of a switch S so that alternatively one acts as a cathode in the flowing liquid while the other one is inactive.
  • the connection of the voltage to either of the plates causes a gasification on that plate, which results in a further constriction of the constricted part of the channel in the direction from this plate.
  • the free through-flow section is obtained near the opposite wall which implies that the liquid flow from the channel B continues in the direction toward the divergent channel, C while the channel C, receives no liquid, not even after the electric current is disconnected as is generally known for fluid amplifiers.
  • the switch 8 is adjusted to position lll, whereby the plate K is connected, the gasification resulting herefrom constricts the liquid flow toward the plate K, and the liquid flows through the channel C, while the flowing in the channel C ceases also after the current is disconnected.
  • the fluid amplifier can thus be controlled by short electric pulses to the plates acting as electrodes.
  • the precipitated weight quantity of a substance is Furthermore the weight for hydrogen is 0.08869 kg/m at 0C and 1 bar.
  • the following volume quantity is thus obtained 3g 3 96487 0.08869 -118mm that is by a current of l A (ampere) about 1 mm of gas is developed in 10 ms (milliseconds). This quantity of gas is large enough to actuate the fluid amplifier.
  • FIG. 2 shows another embodiment of an electrolytic fluid amplifier which can control the liquid flow in two alternative directions wherein the channels have the same design as in the arrangement according to FIG. 1.
  • the anodes have been placed in the immediate vicinity of the respective cathodes so that the voltage source is connected between one anode and one cathode on the side in the direction from which a change of the liquid flow is wanted.
  • the gasification in the anode as well as in the cathode can be utilized, whereby the required flow is reduced.
  • the electrolyte in the channels C, and C can be utilized in a way known in the prior art for actuating for example mechanical arrangements, but it is also possible to make the electrolyte directly close an electric circuit by arranging contact surfaces in the channels, through which the electrolyte is flowing. The electrolyte is then an electric conductor between the contact surfaces.
  • an arbitrary number of channels can, for example, be arranged with a corresponding number of electrodes.
  • the number of channels can be arbitrary and that the channels need not lie symmetrically distributed around a centre axis.
  • the important thing is that the controlling of the through-flowing liquid is made by an electrolytic process in such a way that the cathode which is beyond the centre axis in relation to the channel to where the liquid flow is to be controlled in the same plane as goes through the centre axis and said channel, always connected to the negative pole of the voltage in order to control, by gasification, the liquid flow to the channel.
  • An electrolytic fluid amplifier comprising a fluid conduit, said fluid conduit having an inlet channel section, a con stricted channel section and an outlet channel section, said constricted channel section being between said inlet and outlet channel sections, at least three electrodes within said fluid conduit, at least a first and second of said electrodes being disposed diametrically opposite each other in said constricted channel section, an electrolyte flowing through said conduit and in contact with at least two of said electrodes and means for applying a voltage across one of said first and second electrodes and another of said electrodes, and means for alternately connecting said voltage applying means to said first and second electrodes whereby a gas is generated about the one of said first and second electrodes connected to said voltage applying means to control the direction of flow of electrolyte in said outlet channel section.
  • the electrolytic fluid amplifier of Claim 2 comprising at least two pairs of electrodes, the electrodes of each pair of electrodes being longitudinally displaced from each other in said constricted channel section and the pairs of electrodes being diametrically opposite each other, and said alternately connecting means connecting said voltage applying means alternately across the electrodes of said pairs of electrodes.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Hybrid Cells (AREA)
US702009A 1967-03-14 1968-01-31 Electrolytic fluid amplifier Expired - Lifetime US3524459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE3479/67A SE300066B (en:Method) 1967-03-14 1967-03-14

Publications (1)

Publication Number Publication Date
US3524459A true US3524459A (en) 1970-08-18

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ID=20262216

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Application Number Title Priority Date Filing Date
US702009A Expired - Lifetime US3524459A (en) 1967-03-14 1968-01-31 Electrolytic fluid amplifier

Country Status (9)

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US (1) US3524459A (en:Method)
BE (1) BE712101A (en:Method)
DE (1) DE1675399A1 (en:Method)
DK (1) DK119866B (en:Method)
FR (1) FR1556559A (en:Method)
GB (1) GB1187944A (en:Method)
NL (1) NL6802541A (en:Method)
NO (1) NO120869B (en:Method)
SE (1) SE300066B (en:Method)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721257A (en) * 1971-06-08 1973-03-20 Singer Co Electro-fluidic signal converter
US4765377A (en) * 1983-06-06 1988-08-23 Sidney Soloway Filling and weighing system
RU2331802C1 (ru) * 2007-01-09 2008-08-20 Институт проблем управления им. В.А. Трапезникова РАН Способ преобразования электрического сигнала в струйный
RU2465490C1 (ru) * 2011-06-22 2012-10-27 Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН Способ преобразования электрического сигнала в струйный

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1764154B1 (de) * 1968-04-11 1972-07-13 May & Christe Gmbh Geraeuscharmes gasentladungslampen-vorschaltgeraet
DE3024601A1 (de) * 1980-06-28 1982-01-21 H. Kuhnke GmbH, 2427 Malente E/p wandler
DE4021626A1 (de) * 1990-07-06 1992-01-09 Bosch Gmbh Robert Elektrofluidischer wandler zur ansteuerung eines fluidisch betaetigten stellglieds

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721257A (en) * 1971-06-08 1973-03-20 Singer Co Electro-fluidic signal converter
US4765377A (en) * 1983-06-06 1988-08-23 Sidney Soloway Filling and weighing system
RU2331802C1 (ru) * 2007-01-09 2008-08-20 Институт проблем управления им. В.А. Трапезникова РАН Способ преобразования электрического сигнала в струйный
RU2465490C1 (ru) * 2011-06-22 2012-10-27 Учреждение Российской академии наук Институт проблем управления им. В.А. Трапезникова РАН Способ преобразования электрического сигнала в струйный

Also Published As

Publication number Publication date
DK119866B (da) 1971-03-01
SE300066B (en:Method) 1968-04-01
GB1187944A (en) 1970-04-15
BE712101A (en:Method) 1968-07-15
NO120869B (en:Method) 1970-12-14
DE1675399A1 (de) 1971-07-29
NL6802541A (en:Method) 1968-09-16
FR1556559A (en:Method) 1969-02-07

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