US3702909A - Fluid-controlled selection system - Google Patents

Fluid-controlled selection system Download PDF

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US3702909A
US3702909A US136462A US3702909DA US3702909A US 3702909 A US3702909 A US 3702909A US 136462 A US136462 A US 136462A US 3702909D A US3702909D A US 3702909DA US 3702909 A US3702909 A US 3702909A
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fluid
pressure
selection system
interrupter
interrupters
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Hillebrand Johannes J Kraakman
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US Philips Corp
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US Philips Corp
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/43—Programme-control systems fluidic
    • G05B19/46—Programme-control systems fluidic hydraulic
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/43—Programme-control systems fluidic
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/43—Programme-control systems fluidic
    • G05B19/44—Programme-control systems fluidic pneumatic
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S200/00—Electricity: circuit makers and breakers
    • Y10S200/43—Fluid-operated matrix switches
    • 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
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8175—Plural
    • Y10T137/8192—Unobvious - "combination lock" type
    • 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
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87708—With common valve operator
    • Y10T137/87716—For valve having a flexible diaphragm valving member
    • 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
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87885—Sectional block structure

Definitions

  • ABSTRACT A fluid-controlled selection system having a number of logical fluid elements, each of which has a pressure output communicating with a pressure input. In the communication between a pressure input and a pressure output at least two series-arranged fluid interrupters are incorporated. The said fluid interrupters in each logical fluid element are controlled by means of control signals originating from a combination of two control pressure lines from a total number of control pressure lines for the entire selection system, this combination being different for each fluid element.
  • the invention relates to a fluid-controlled selection system for the selective transmission of a fluid pressure to fluid-controlled devices to be connected to outputs of the selection system.
  • Fluid-controlled devices are known to be used in order to avoid the abovementioned problems. Such devices offer the advantage that they are rugged, firesafe and comparatively inexpensive. The lower speed of such devices is no objection in many cases.
  • the object of the invention is to provide an in itself simple fluid-controlled system which is in principle suitable for controlling given processes and which offers many extension possibilities for processing many types of information. 7 7
  • the invention is therefore characterized in that the selection system comprises a number (n) of logical.
  • fluid elements each of which has a pressure output communicating with a pressure input
  • said communication incorporating at least two (m) fluid interrupters which are arranged in series and which are to be individually operated by a control signal supplied thereto, said system communicating with a number (x) of control pressure lines for the selective control of the logical fluid elements, fluid interrupters of the various logical fluid elements to be operated by a control signal communicating with these control pressure lines so that each of the various fluid interrupters of one and the same logical fluid element communicates with a different control pressure line and the fluid interrupters of the various logical fluid elements each time communicate with a different combination of control pressure lines from the total number (x) of control pressure lines.
  • FIG. 1 diagrammatically shows a first embodiment of a selection system according to the invention, having ten fluid elements which are selectively controlled by means of five control pressure lines.
  • FIG. 2 shows a diaphragm straight way valve which may be applied in the selection systems according to the invention.
  • FIG. 3 diagrammatically shows a second embodiment of a selection system according to the invention, having eight fluid elements which are selectively controlled by means of three pairs of control pressure lines.
  • FIG. 4 shows an automatically operating diaphragm valve which may be applied in the selection systems according to the invention.
  • FIG. 5 diagrammatically shows the pattern of the communications of the fluid interrupters in the various fluid elements with the control pressure lines for the selection system shown in FIG. 3.
  • FIG. 6 diagrammatically shows a third embodiment of a selection system according to the invention, having eight fluid elementswhich are selectively controlled by three pairs of control pressure lines, each pair having inverse pressure levels.
  • FIG. 7 diagrammatically shows the pattern of the communications of the fluid interrupters in the various fluid elements with the control pressure lines for the selection system shown in FIG. 6.
  • FIG. 8 diagrammatically shows a fourth embodiment of a selection system according to the invention, having eight fluid elements which are selectively controlled by three pairs of control pressure lines.
  • FIG. 9 diagrammatically shows a plunger valve which may be applied in the selection system according to the invention.
  • FIG. 10 diagrammatically shows a fifth embodiment of a selection system according to the invention.
  • FIG. 11 diagrammatically shows a sixth embodiment of a selection system according to the invention, a selection system of the type shown in FIG. 10 being coupled to a selection system of the type shown in FIG. 6
  • FIGS. 12 and 13 show a section of a combination of two selection systems according to the invention which is suitable as a coordinate switch for automatic telephony.
  • FIG. 14 shows a section of a fluid-controlled threeway contact which may be used for automatic telephony in the combination of selection systems shown in the FIGS. 12 and 13.
  • FIG. 15 shows a block diagram of the combination of selection systems shown in the FIGS. 12 and 13.
  • the selection systems illustrated by the FIGS. 1, 3, 5, 6, 7, 8, 10, 11, 12, 13 and 15 are all operated with fluid (in general air) of a binary (inverse) pressure level, i.e. pressures of a comparatively high and a comparatively low level (henceforth called pressure levels 1 and 80,). 7 v I. I
  • the selection system 3 shown in FIG. 1 comprises ten identical logical fluid elements 5 to be selectively controlled, only four of which are shown.
  • Each of these ten fluid elements 5 is provided with two series-arranged fluid interrupters, each of which is to be operated by a control signal to be supplied thereto, each of the interrupters being incorporated in the communication between a pressure input and a pressure output.
  • the fluid element 5 shown is provided with the series-arranged fluid interrupters 11 and 13, communicating with control pressure lines a and b via signal supplies 7 and 9, said interrupters being incorporated in the communication between pressure input 15 and pressure output 17.
  • the pressure level at a pressure input is transmitted to the associated pressure output, i.e. the relevant fluid element is selected, only if the control pressure lines communicating with the relevant fluid element have the same pressure level.
  • the pressure input of each fluid element communicates with a command pressure line S which is common to all fluid elements and which may have the pressure level,
  • the selection of one particular fluid element out of the ten fluid elements 5 of the selection system 3 is effected by means of five control pressure lines a, b, c, d and e.
  • the two fluid interrupters of each fluid element 5 communicate each time withadifferent combination of two of the control pressure lines a, b, c, d and e.
  • the fluid interrupters l1 and 13 communicate via the signal supplies 7 and 9 with the control pressure lines a and b, respectively.
  • the remaining nine fluid elements 5 successively communicate with the following combinations of control pressure lines:
  • control pressure lines each of which may each have the pressure level l or 0, at the most ten different fluid elements may be selectively controlled, for selection of one particular fluid element where the two associated control pressure lines both have to have either the pressure level 1 or 0,. All control pressure lines not communicating with that fluid element also have either the pressure level 0 or I. That is, in any system of five variables there are only 10 possible exclusive combinations of two selected variables.
  • control pressure lines a and b have the pressure level 0, and the control pressure lines 0, d, e have the pressure level I, or that the control pressure lines a and b have the pressure level l, and the control pressure lines 0, d and e have the pressure level 0.
  • the type of fluid interrupter which will be discussed in detail with reference to FIG. 9
  • it is brought into the closed position by a control signal of the level l or of the level 0.
  • the fluid interrupter 19 shown in FIG. 2 is used, which is closed when a control signal of the level l is supplied.
  • the fluid interrupter 19 (called straight way valve 19 henceforth) comprises two circular compartments 21 and 23, which are separated from each other by a flexible diaphragm 35 of, for example, Ni foil.
  • the compartment 21 communicates with a signal supply 27, whilst the compartment 23, separated from the compartment 21, communicates with a fluid duct 29 and a fluid duct 31 communicating therewith, respectively.
  • the straight way valve 19 is in the closed condition.
  • the selection system 33 shown in FIG. 3, which is a second embodiment of a selection system according to the invention, comprise eight (n) identical fluid elements 35, each of which is provided with three (m) series-arranged straight way valves, for example, as shown in FIG. 2. Consequently, for the selection system 33, n 2".
  • the selective control of the eight fluid elements is effected by means of six control pressure lines a, b, c, d, e and f.
  • a fluid element 35 comprises three series-arranged straight way valves 37, 39 and 41, via which a pressure input 43 communicates with a pressure output 45.
  • the pressure input 43 communicates with a command pressure line S which is common to all eight fluid elements 35.
  • the valves 37, 39 and 41 are connected to one of the control pressure lines a, b, c, d, e and f by means of signal supplies p, q and r, respectively.
  • a further fluid interrupter is associated which is connected on one side to the pressure output 45 and on the other side, via a signal supply, to one of the control pressure lines a, b, c, d, e and f.
  • thefluid interrupters 47, 49 and 51 are associated respectively, which are provided with the signal supplies 5, t and u respectively, each of which is connected to one of the control pressure lines a, b, c, d, e and f.
  • the fluid interrupters 47, 49 and 51 are, for example, of the type shown in FIG. 4.
  • the fluid interrupter 53 shown in FIG. 4 comprises two circular compartments 55 and 57 which are separated from each other by a flexible diaphragm 59 of, for example, nickel foil which is provided with an aperture 61.
  • the compartment 55 is provided with a fluid duct 63 and the compartment 57 with a fluid duct 65.
  • the distance between the diaphragm 59 and the face 67, serving as a stop, may be chosen to be such that the communication between fluid duct 63 and fluid duct 65 is cut off only at a very specific positive pressure differential between the compartment 55 and the compartment 57. This will be discussed in detail hereinafter.
  • the fluid interrupters shown in FIG. 4 will often be called automatically operating fluid interrupters in order to distinguish them from the fluid interrupters shown in FIG. 2.
  • the automatically operating fluid interrupters 47, 49 and 51 (FIG. 3) will hereinafter be called air-relief valves 47, 49 and 51 in view of their function in the selection system 33.
  • the control pressure lines a, b, c, d, e and f pairwise always have mutually inverse pressure levels, i.e. if the control pressure in control pressure line a is of the level l (comparatively high level), the control pressure in the control pressure line b is of the level 0 (comparatively low level), or vice versa. The same holds good for the pairs of control pressure lines c, d and e, f.
  • the signal supplies p, q and r of the three straight way valves are each time connected to a different combination of three control pressure lines for the various fluid elements 35.
  • the signal supplies s, t and u of the associated air-relief valves in such a fluid element are then connected to the other three control pressure lines.
  • the signal supplies p, q and r of the fluid element 35 shown are connected to the control pressure lines a, c and e respectively, whilst the signal supplies s, t and u are connected to the control pressure lines b, d and f.
  • FIG. 5 diagrammatically shows the connections of the signal supplies of each of the eight fluid elements 35 in the selection system 33 as shown in FIG. 3.
  • the signal supplies p and s of each fluid element 35 are always connected to one of the control pressure lines a and b, the signal supplies q and t are always connected to one of the control pressure lines and d, and the signal supplies r and u are always connected to one of the control pressure lines e and f.
  • the said method of connecting the signal supplies as shown in FIG.
  • the operation of the selection system 33 is described with reference to one particular pressure level combination in the control pressure lines a, b, c, d, e and f, i.e. the combination where the fluid element 35 illustrated in FIGS. 3 and 5 is selected.
  • the following reference numerals now only refer to the shown and selected fluid element 35. It is assumed that the command pressure line S, which is common to all eight fluid elements 35, continuously has the pressure level 1, so that also all eight pressure inputs 43 continuously have the pressure level 1, and the control pressure lines a, b, c, d, e and f have the pressure level 0, b, 0, l, 0 and 1, respectively.
  • control pressure lines a, c and e As each of the control pressure lines a, c and e has the pressure level 0, the respective straight way valves 37, 39 and 41 are opened so that the pressure output 45 has the pressure level l As control pressure lines b, d and f have the pressure level l so that at both sides of the airrelief valves 47, 49 and 51 the pressure level I prevails, the pressure level l on the control pressure output 45 cannot drop. It will be obvious that in none of the remaining seven fluid elements 35 the pressure level l appears at the relevant pressure output because in those fluid elements at least one straight way valve is closed at the assumed pressure level combination in the control pressure lines (see FIG. 5), whilst also at least one associated air-relief valve, communicating with a control pressure line having the pressure level 1,? is closed.
  • the pairs of inverse control pressure lines a and b, c and d and e and f may be controlled by one control element per pair of inverse control pressure lines.
  • the selection system 33 shown in FIGS. 3 and 5 six control pressure lines may be controlled by means of only three control elements, whilst in the selection system 3 five control pressure lines are controlled by five control elements (one control element for each control pressure line).
  • the selection system 3 ten different fluid elements may be selected by means of five control pressure lines, whilst in the selection system 33 only eight fluid elements maybe selected by means of six control pressure lines. Particularly in the case of a comparatively large number of fluid elements to be selected the selection system 33 shown in FIG. 3 and in FIG. 5, however, offers the special advantage that the control pressure lines and the signal supplies can be so arranged that no cross-overs between control pressure lines and signal supplies are necessary (see FIG. 5).
  • each pair of pressure-inverse control pressure lines one control pressure line is therefore arranged to the one side of the straight way or air-relief valves, respectively, corresponding in place in the consecutive fluid elements, whilst the other control pressure line is arranged to the other side of said valves.
  • this is not possible withoutcross-overs of control pressure lines and signal supplies.
  • the third embodiment of a selection system 69 according to the invention shown in FIG. 6 comprises eight identical fluid elements 71 which are to be selected individually and which are provided with three series-arranged straight way valves (for example, as shown in the FIG. 2), via which valves a command pressure line S which is common to all fluid elements communicates with the pressure output of the consecutive fluid elements, an automatically operating fluid interrupter (for example, as shown in FIG. 4) being associated with each straightway valve.
  • an automatically operating fluid interrupter for example, as shown in FIG. 4 being associated with each straightway valve.
  • Each fluid element 71 is provided with three series-arranged straight way valves 73, 75 and 77, with which the automatically operating fluid interrupters 79, 81 and 83 respectively, are associated.
  • the straightway valves 73, 75 and 77 communicate with one of the six control pressure lines a, b, c, d, e and f via the signal supplies p, q and r.
  • a pressure input communicating with the command pressure lines S communicates with a pressure output 87.
  • the automatically operating fluid interrupters 79, 81 and 83 of each fluid element communicate on the one side with the pressure output of that fluid element and on the other side, via the said signal supplies p, q and r, with one of six control pressure lines a, b, c, d, e and f which pairwise have inverse pressure levels.
  • the signal supplies p, q and r of a fluid element 71 are therefore common to the straight way valves 73, 75 and 77 and the automatically operating fluid interrupters 79, 81 and 83 associated therewith, so that a control pressure line communicating with a straight way valve also communicates with the automatically operating fluid interrupter associated with that straightway valve.
  • the signal supplies p, q and r of the various fluid elements 71 each time communicate with another combination of three control pressure lines.
  • FIG. 7 diagrammatically shows the connections of the signal supplies of each of the eight fluid elements 71 in the selection system 69 (as shown in FIG. 6).
  • the operation of the selection system 69 will now be described with reference to a pressure level combination in the control pressure lines, a, b, c, d, e and f where the shown fluid element 71 is selected, i.e. O, l, 0, 1, 0, 1.
  • a pressure of the level present in the command pressure line S appears at the pressure output 87.
  • the pressure level 0 prevails both on the side of the automatically operating fluid interrupters 79, 81 and 83 facing the signal supplies p, q and r and the side facing the pressure output 87, the pressure level 0 at the pressure output 87 is maintained.
  • the fourth embodiment of a selection system 87 according to the invention shown in FIG. 8 comprises eight identical fluid elements 89 which are to be in dividually selected and which are each provided with three series-arranged straight way valves (for example, as shown in FIG. 2) communicating with one of six control pressure lines a, b, c, d, e and f via signal supplies p, q and r, a command pressure line S which is common to all fluid elements communicating with pressure outputs of the consecutive fluid elements via said straight way valves.
  • a command pressure line S which is common to all fluid elements communicating with pressure outputs of the consecutive fluid elements via said straight way valves.
  • an additional similar straight way valve is associated which commu-' nicates via one of the signal supplies s, t and u with one of the control pressure lines a, b, c, d, e and f.
  • the signal supplies p, q, r, s, t and u communicate with the control pressure lines a, b, c, d, e and fin the same manner as shown in FIG. 5 for the selection system 33, whilst also in this case the control pressure lines of the pairs of control pressure lines a and b, c and d, e and f always have inverse pressure levels.
  • the control pressure lines of the pairs of control pressure lines a and b, c and d, e and f always have inverse pressure levels.
  • Each fluid element 89 is provided with three series-arranged straight way valves 91, 93 and 95, with which the straight way valves 97, 99 and 101, respectively, are associated.
  • a pressure input 103 communicating with the command pressure line S communicates with a pressure output 105.
  • the associated straightway valves 97, 99 and 101 of each fluid element communicate on the one side with the pressure output of that fluid element and on the other side with an auxiliary command pressure line S which is common to all fluid elements and which always has an inverse pressure level with respect to the pressure level of the command pressure line S.
  • the signal supplies p, q, r, s, t and u of the fluid element 89 shown communicate with the control pressure linesa, c, e, b, d and f, respectively (compare with FIG. 5).
  • the operation of the selection system 87 will be described with reference to a pressure level combination in the control pressure lines a, b, c, d, e, and f where the fluid element 89 shown is selected, i.e. 0," l, 0, l, O," l whilst the command pressure lines S and S have the pressure level l and 0, respectively.
  • the following reference numerals now refer only to the shown and selected fluid element 89.
  • the pressure level 1" prevailing in the command pressureline 8 appears at the pressure output 105.
  • the signal supplies s, t and u have the pressure level 1, the associated straight way valves 97, 99 and 101 are closed so that the pressure level 1 at the pressure output 105 is maintained.
  • the selection systems 33 and 69 operate with the pressure level 1 and the pressure level 0, respectively, in the command pressure line S. It will be obvious that the selection systems 3 and 87 can operate both with the pressure level l and with the pressure level 0 in the command pressure line S.
  • an already selected fluid element may be returned to the nonselected condition upon selection of another fluid element by reselecting the already selected fluid element and by in verting the pressure in the command pressure line S. In the selection systems 33 and 69 this is effected in a simpler manner, i.e. by selecting an element other than the already selected element.
  • selection system 33 This is enabled in the selection system 33 by the air-relief valve associated with each straight way valve, and in the selection system 69 by the automatically operating fluid interrupter associated with each straight way valve.
  • selection system 87 can operate both with the pressure level 1 and the pressure level 0 in the command pressure line S is a result of the use of the auxiliary command pressure line S which has an inverse pressure level with respect to the pressure level of the command pressure line S.
  • the selection systems 33 and 69 a different type of fluid interrupter is used for the series-arranged fluid interrupters shown in FIG. 2, and the airrelief valves and the associated automatically operating fluid interrupters, respectively, are incorporated the other way around with respect to FIG. 3 and FIG. 6, respectively), it is possible for the selection systems 33 and 69 to operate with the pressure level 0 and the pressure level 1, respectively, in the command pressure line S.
  • This other type of fluid interrupter, shown in FIG. 9, is characterized in that it is open if the control pressure supplied thereto is of the level 0.
  • FIG. 9 comprises a second fluid duct 11 1 which communicates with a first duct 109, which communication may be cut off by a plunger 115 which is movable by the force of a spring 113.
  • the plunger 115 is controlled by means of a control pressure of the level which is supplied via a third fluid duct 117. If the control pressure is of the level l, the plunger 115 is in the position shown, the spring 113 then being compressed. If the control pressure changes to the level 0, the compressed spring 113 is released sothat the plunger 115 is moved over such a distance that the communication between the first fluid duct 109 and the second fluid duct 1 l 1 is cut off.
  • the fifth selection system 119 as shown in FIG. 10 comprises eight identical logical fluid elements 121 to be selected individually. For the sake of clarity, only one of the'fluid elements 121 of the selection system 119 is shown. The reference numerals placed near the fluid element 121 shown therefore always refer to all eight fluid elements.
  • the fluid elements are selected by means of six control pressure lines a, b, c, d, e and f, the control pressure lines of the pairs of control pressure lines a and b, c and d, e and f always having mutually inverse pressure levels.
  • Each of the eight fluid elements comprises three series-arranged straight way valves 123, 125, 127 as shown in FIG.
  • the automatically operating fluid interrupters 129, 131 and 133 will henceforth be termed air-relief valves.
  • the connections of the signal supplies p, q, r, s, t and u to the control pressure lines a, b, c, d, e and f are established in the same manner as in the selection system 33 shown in FIGS. 3 and 5.
  • the control pressure lines communicating with those signal supplies also control one of three series-arranged further straight way valves 139, 141, 143, which in view of their function are henceforth termed restoring valves 139, 141, 143, a restoring pressure input 145, which communicates with the command pressure line S which is common to all fluid elements communicating with a restoring pressure output 147 via the said restoring valves 139, 141, 143.
  • the restoring pressure output 147 communicates via a restoring pressure line 149 with one of the outputs 151 of the selection system.
  • the outputs 151 communicate with further fluid-controlled devices such as, for example, an electrical switch operated by fluid pressure.
  • an automatically operating fluid interrupter 153 as shown in FIG. 4 is incorporated, which is closed at a comparatively high pressure at the restoring pressure output 147 and a comparatively low pressure at the output 151 of the selection system.
  • the fluid interrupter 153 is opened if the same pressure level prevails on both sides thereof.
  • the restoring pressure line 149 communicates, via an automatically operating fluid interrupter 155 as shown in FIG. 4, with a reservoir 157 in which a comparatively high pressure (of the level l prevails.
  • fluid interrupter 155 is opened if on both sides thereof the pressure level is the same, whilst it is closed if the pressure level on output 151 is lower than the pressure level 1 in the reservoir 157 by a given amount yet to be described.
  • the pressure output 137 communicates via a store control line 159 with the output 151, an automatically operating fluid interrupter 161 as shown in FIG. 4 being incorporated in the store control line 159.
  • the fluid interrupter 161 has a direction of operation which is opposite to the direction of operation of the fluid interrupter 153.
  • the store control line 159 communicates via an automatically operating fluid interrupter 163 as shown in FIG.
  • fluid interrupter 163 is opened if on both sides thereof the pressure level is the same, whilst it is closed if the pressure level on output 151 exceeds the pressure level 0 in the reservoir 165 by an amount yet to be described.
  • the operation of the selection system 119 will now be described with reference to a pressure level combination in the control pressure lines a, b, c, d, e and f where the fluid element 121 shown is selected, i.e. 0, 1, O, 1, O, 1, (see also FIG. 5), the command pressure line having the pressure level l.
  • the following reference numerals refer only to the shown and selected fluid element 121.
  • the straight way valves 123, 125, 127 and the restoring valves 139, 141 and 143 are open so that the pressure of the level 1 of the command pressure line S appears at the pressure output 137 and at the restoring pressure output 147.
  • the air-relief valves 129, 130 and 131 are also open because on both sides thereof the pressure level 1 prevails.
  • the fluid interrupter 161 is kept open by the pressure of the level 1 in the store control line 159, so that at the output 151 of the selection system the pressure level 1 prevails. As the pressure level 1 prevails on the restoring pressure output 147, the fluid interrupter 153 also remains open.
  • a further fluid-controlled device is operated by the pressure of the level 1 at output 151.
  • pressure of the level 1 appears in the signal supply p and pressure of the level 0" appears in the signal supply s (see FIG. 5) of the fluid element 121 shown,
  • the pressure level combination present in the control pressure lines a, b, c, d, e and f is always the one by which the last selected fluid element is controlled.
  • Returning the output 151 to the pressure level 0, characterizing the nonselected condition, is effected by reselecting the fluid element 121 shown and by bringing the command pressure line which is common to all fluid elements to pressure level 0 for a sufficiently long period.
  • the restoring valves 139, 141 and 143 are opened so that the restoring pressure line 149 and output 151 which are at the pressure level l change to the pressure level 0 (fluid interrupter 153 was already open).
  • the command pressure line S can be brought to pressure level 1 again only if the fluid element 121 (again) or one of the other fluid elements is selected.
  • the fluid interrupter 155 so proportioned that the fluid interrupter does not close when leakage losses occur. This is made possible by situating the diaphragm present in the fluid interrupter 155 at a sufficiently large distance from the associated stop (see FIG. 4).
  • an output 151 having the pressure level 0 an analogous phenomenon occurs when the pressure level 0" corresponds to a pressure which is lower than atmospheric pressure.
  • the store control line 159 and hence the output 151 may be madeto communicate with the reservoir 165 having the pressure level 0 via the fluid interrupter 163.
  • the diaphragm in the fluid interrupter 163 is also situated at a sufficiently large distance from its stop.
  • both a further fluid-controlled device operating with the pressure level l and a device operating with the pressure level 0 can be operated by means of all these selection systems.
  • the selection systems 3, 69 and 87 can be extended in an analogous manner with a portion having memory action.
  • the two automatically operating fluid interrupters required for the additional portion and having memory action and restoring facility will have to be inserted in the storage control line and the restoring pressure line, respectively, the other way around with respect to the arrangement shown in the FIG. 10.
  • the sixth embodiment of a selection system 167 according to the invention shown in FIG. 11 comprises two series of four identical fluid elements each. For the sake of clarity, of each series only two of the four fluid elements are shown, i.e. the fluid elements 169 and 171 of the one series and the fluid elements 173 and 1750f the other series.
  • the fluid elements 169 and 171 are socalled two-valve fluid elements of the same type as the three-valve fluid element 35 shown in FIG. 3, and the fluid elements 173 and 175 are so-called two-valve fluid elements of the same type as the three-valve fluid element 71 shown in FIG. 6.
  • the fluid elements 169 and 171 are selectively controlled by means of four control pressure lines a 1),, c and d,, the pair of control pressure lines a,, b, and c,, d, having an inverse" pressure level.
  • the fluid elements 173 and 175 are selectively controlled by means of four control pressure lines a b c and d which pair-wise also have an inverse pressure level.
  • a command pressure line S which is common to the fluid elements 169 and 171 communicates with the pressure inputs 177 and 179 of the fluid elements 169 and 171, respectively, said pressure inputs communicating, via two series-arranged straight way valves 181 and 183 and two series-arranged straight way valves 185 and 187, with the pressure outputs 189 and 191, respectively.
  • the straight way valves 181, 183, 185 and 187 are of the type shown in FIG. 2 and are controlled as has already been described with reference to the selection system 33 shown in FIG. 3.
  • a command pressure line S which is common to the fluid elements 173 and 175 communicates with the pressure inputs 193 and 195 of the fluid elements 173 and 175, respectively, said pressure inputs conununicating via two series-arranged straight way valves 197 and 199 and two series-arranged straight way valves 201 and 203, with the pressure outputs 205 and 207, respectively.
  • the straight way valves 197, 199, 201 and 203 are also of the type shown in FIG. 2 and are controlled as has already been described with reference tothe selection system 69 shown in FIG. 6.
  • the storage control lines 209 and 211 are provided with branch lines 225, 227, 229 and 231, respectively, each of which communicates, via an automatically operating fluid'interrupter as shown in FIG. 4, a straight way valve as shown in FIG. 2 and an output of the selection system, with a further fluid-controlled device.
  • branch lines 225, 227, 229 and 231 are associated the automatically operating fluid interrupters 233, 235, 237 and 239, respectively, the
  • straight way valves 241, 2,43, 245 and 247 respectively, the outputs of the selection system 249, 251, 253 and 255, and the further fluid-controlled devices 217, 219, 221 and 223.
  • Each of the outputs 249, 251, 253 and 255 communicates via a straight-way valve as shown in FIG. 2 and anautomatically operating fluid interrupter as shown in FIG. 4, with a restoring pressure line for the relevant fluid element.
  • the outputs 249 and 251 of the fluid element 169 communicate with the restoring pressure line 265 via the straight way valves 257 and 259, respectively, and the fluid interrupters 261 and 263, respectively, the outputs 253 and 255 of the fluid element 171 communicating, via the straight way valves 267 and 269, and the fluid interrupters 271 and 273, respectively, with the restoring pressure line 275.
  • the restoring pressure lines 265 and 275 communicate with restoring pressure outputs 277 and 279, respectively, which communicate, via two series-arranged restoring valves 281 and 283 as shown in FIG. 2 and two series-arranged restoring valves 2,85 and 287 as shown in FIG.
  • the pressure of the level 1 will also be present in the branch lines 225 and 227, so that the fluid interrupters 233 and 235 are opened. Due to the pressure of the level 0 in the auxiliary control line 213 of the selected fluid element 173, the straight way valve 241 is opened so that the pressure of the level l reaches the output 249 of the selection system and operates the fluid-controlled device 217. As the auxiliary control line 215 of the non-selected fluid element has the pressure level 1, the straight way valve 243 is closed so that the pressure of the level l in the branch line 227 cannot operate the fluid-controlled device 219.
  • the straight way valve 257 is also opened by the pressure of the level 0" in the auxiliary control line 213, so that on both sides of the fluid interrupter 261 the pressure level l prevails.
  • the fluid interrupter 261 is thus opened, the fluid interrupter 263 being closed by the pressure of the level l in the restoring pressure line 265.
  • the pressure level 1 prevails on the output 249, the pressure level combination in the control pressure lines a,, b,, c and 01 is changed so that the fluid element 171 is selected, the pressure level combination in the control pressure lines a b 0 and d, being maintained so that the already selected fluid element 173 remains selected.
  • the store control line 2090f the fluid element 169 is relieved via one of the open air-relief valves (as already stated, not shown for the sake of clarity) and the fluid interrupter 233 closes.
  • the pressure level l prevails on both sides of the fluid interrupter 261 so that output 217 of the selection system remains at the pressure level l (memory action).
  • the fluid interrupter 271 is also opened as on both sides thereof the pressure level l prevails, the fluid interrupter 273 being closed by the pressure of the level l in the restoring pressure line 275.
  • the fluid controlled device 223 is not operated.
  • the operation of the fluid-controlled device 223 in the case of already operated fluidcontrolled devices 217 and 221 is effected-by selecting the fluid element 175, the already selected fluid element 171 remaining selected.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Pressure Circuits (AREA)
US136462A 1970-04-25 1971-04-22 Fluid-controlled selection system Expired - Lifetime US3702909A (en)

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CA (1) CA933436A (pt)
DE (1) DE2116678A1 (pt)
FR (1) FR2086344B1 (pt)
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NL (1) NL7006059A (pt)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934611A (en) * 1972-08-04 1976-01-27 Jean Gachot Comparator for coded signals represented by a pressure of fluid
US4000386A (en) * 1974-03-07 1976-12-28 Leesona Corporation Fluid operated electrical relays and systems
US4250929A (en) * 1979-10-22 1981-02-17 Andreev Evgeny I Pneumatically operated switch
US4371753A (en) * 1976-12-21 1983-02-01 Graf Ronald E Miniature fluid-controlled switch
FR2511445A1 (fr) * 1981-06-04 1983-02-18 Westinghouse Electric Corp Systeme de commande a fluide
US4549578A (en) * 1984-03-21 1985-10-29 Exxon Production Research Co. Coded fluid control system
WO2000009855A1 (en) * 1998-08-13 2000-02-24 Pes Inc. Hydraulic well control system
WO2001061144A1 (en) * 2000-02-14 2001-08-23 Halliburton Energy Services, Inc. Digital hydraulic well control system
WO2001083939A1 (en) * 2000-05-04 2001-11-08 Halliburton Energy Services, Inc. Hydraulic control system for downhole tools
US20030048197A1 (en) * 2000-02-22 2003-03-13 Purkis Daniel G. Sequential hydraulic control system for use in a subterranean well
US6536530B2 (en) 2000-05-04 2003-03-25 Halliburton Energy Services, Inc. Hydraulic control system for downhole tools
US20040055749A1 (en) * 2002-09-23 2004-03-25 Lonnes Steven B. Remote intervention logic valving method and apparatus
US20070095413A1 (en) * 2005-11-01 2007-05-03 Georgia Tech Research Corporation Systems and methods for controlling the flow of a fluidic medium
US20160215392A1 (en) * 2015-01-22 2016-07-28 Applied Materials, Inc. Injector For Spatially Separated Atomic Layer Deposition Chamber
EP3289171A4 (en) * 2015-04-30 2018-04-25 Conoco Phillips Company Annulus installed 6 zone control manifold

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US3304386A (en) * 1964-06-25 1967-02-14 Jr Bernard Edward Shlesinger Multiple contact program system fluid pressure type
US3493173A (en) * 1965-12-02 1970-02-03 Ite Imperial Corp Fluid multiselector
US3531079A (en) * 1966-04-13 1970-09-29 George B Greene Controlled fluid valve
US3540477A (en) * 1969-03-18 1970-11-17 Honeywell Inc Pneumatic supply-exhaust circuit
US3571542A (en) * 1969-08-12 1971-03-23 Ibm Fluid logic controlled elastic diaphragm switch matrix with cross point shielding
US3599525A (en) * 1970-05-14 1971-08-17 Paul A Klann Pneumatic crossbar device

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DE115C (de) * 1877-07-30 J. MEISTER in Kalk bei Köln am Rhein Hahn mit Schlauchverbindung
DE1156482B (de) * 1961-06-09 1963-10-31 Licentia Gmbh Druckluftsteuerblock fuer die Steuerung von Hoch- und Niederspannungsschaltanlagen

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Publication number Priority date Publication date Assignee Title
US2811599A (en) * 1953-10-15 1957-10-29 Statham Lab Inc Liquid pressure operated electrical switch
US3304386A (en) * 1964-06-25 1967-02-14 Jr Bernard Edward Shlesinger Multiple contact program system fluid pressure type
US3493173A (en) * 1965-12-02 1970-02-03 Ite Imperial Corp Fluid multiselector
US3531079A (en) * 1966-04-13 1970-09-29 George B Greene Controlled fluid valve
US3540477A (en) * 1969-03-18 1970-11-17 Honeywell Inc Pneumatic supply-exhaust circuit
US3571542A (en) * 1969-08-12 1971-03-23 Ibm Fluid logic controlled elastic diaphragm switch matrix with cross point shielding
US3599525A (en) * 1970-05-14 1971-08-17 Paul A Klann Pneumatic crossbar device

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934611A (en) * 1972-08-04 1976-01-27 Jean Gachot Comparator for coded signals represented by a pressure of fluid
US4000386A (en) * 1974-03-07 1976-12-28 Leesona Corporation Fluid operated electrical relays and systems
US4371753A (en) * 1976-12-21 1983-02-01 Graf Ronald E Miniature fluid-controlled switch
US4250929A (en) * 1979-10-22 1981-02-17 Andreev Evgeny I Pneumatically operated switch
FR2511445A1 (fr) * 1981-06-04 1983-02-18 Westinghouse Electric Corp Systeme de commande a fluide
US4549578A (en) * 1984-03-21 1985-10-29 Exxon Production Research Co. Coded fluid control system
WO2000009855A1 (en) * 1998-08-13 2000-02-24 Pes Inc. Hydraulic well control system
US6179052B1 (en) 1998-08-13 2001-01-30 Halliburton Energy Services, Inc. Digital-hydraulic well control system
US6575237B2 (en) 1998-08-13 2003-06-10 Welldynamics, Inc. Hydraulic well control system
US6567013B1 (en) 1998-08-13 2003-05-20 Halliburton Energy Services, Inc. Digital hydraulic well control system
US6470970B1 (en) 1998-08-13 2002-10-29 Welldynamics Inc. Multiplier digital-hydraulic well control system and method
WO2001061144A1 (en) * 2000-02-14 2001-08-23 Halliburton Energy Services, Inc. Digital hydraulic well control system
US20030048197A1 (en) * 2000-02-22 2003-03-13 Purkis Daniel G. Sequential hydraulic control system for use in a subterranean well
US7145471B2 (en) 2000-02-22 2006-12-05 Welldynamics, Inc. Sequential hydraulic control system for use in a subterranean well
US6536530B2 (en) 2000-05-04 2003-03-25 Halliburton Energy Services, Inc. Hydraulic control system for downhole tools
GB2366818A (en) * 2000-05-04 2002-03-20 Halliburton Energy Serv Inc Hydraulic control system for downhole tools
WO2001083939A1 (en) * 2000-05-04 2001-11-08 Halliburton Energy Services, Inc. Hydraulic control system for downhole tools
GB2366818B (en) * 2000-05-04 2004-12-01 Halliburton Energy Serv Inc Hydraulic control system for downhole tools
US20040055749A1 (en) * 2002-09-23 2004-03-25 Lonnes Steven B. Remote intervention logic valving method and apparatus
US7516792B2 (en) 2002-09-23 2009-04-14 Exxonmobil Upstream Research Company Remote intervention logic valving method and apparatus
US20070095413A1 (en) * 2005-11-01 2007-05-03 Georgia Tech Research Corporation Systems and methods for controlling the flow of a fluidic medium
US20160215392A1 (en) * 2015-01-22 2016-07-28 Applied Materials, Inc. Injector For Spatially Separated Atomic Layer Deposition Chamber
EP3289171A4 (en) * 2015-04-30 2018-04-25 Conoco Phillips Company Annulus installed 6 zone control manifold
AU2016256479B2 (en) * 2015-04-30 2020-11-12 Conocophillips Company Annulus installed 6 zone control manifold

Also Published As

Publication number Publication date
FR2086344B1 (pt) 1976-03-19
DE2116678A1 (de) 1971-11-18
GB1308091A (en) 1973-02-21
CA933436A (en) 1973-09-11
NL7006059A (pt) 1971-10-27
FR2086344A1 (pt) 1971-12-31

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