US3589381A

US3589381A - Pure fluid system

Info

Publication number: US3589381A
Application number: US768133A
Authority: US
Inventors: Mititaka Yamamoto; Ryoichi Yoshida; Genzo Uekusa; Tomoomi Kobayashi
Original assignee: Tateisi Electronics Co
Current assignee: Omron Corp
Priority date: 1967-10-20
Filing date: 1968-10-16
Publication date: 1971-06-29
Anticipated expiration: 1988-06-29
Also published as: GB1225840A; FR1588445A; DE1804298A1

Abstract

A pure fluid system in which a control stream is capable of causing a mainstream of continuous flow of a pressurized fluid to deflect; the control stream is thereby so coordinated to the mainstream that no direct contact exists between the control stream and the mainstream but instead the control stream is formed as individual stream separated from the mainstream and flowing past the side of the mainstream to merely produce a change in pressure on the lateral side of the mainstream, thereby causing the mainstream to carry out a deflection.

Description

United States Patent Inventors Mititaka Yamamoto Kyoto-fu;

saiqnixqsh dw qms Uekusa, Osaka-la; Tomoomi Kobayasi,

Kyoto-Eu, all of, Japan Appl. No. 768,133 Filed Oct. 16, 1968 Patented June 29, 1971 Assignee Tateisi Electronics Kyoto-fu, Japan Oct. 20, 1967 Japan 42/67587 Priority PURE FLUID SYSTEM 6 Claims, 18 Drawing Figs.

US. Cl

Int. Cl

Field of Search References Cited UNITED STATES PATENTS 9/1965 Zilberfarb 1/1966 Notwood 3.232505 2/1966 Groeber 137/815 3,258,023 6/1966 137/815 3,283,766 11/1966 137/815 3,286,086 1 1/1966 235/201 PF 3,417,770 12/1968 137/815 3,425,432 2/1969 137/815 3,457,937 7/1969 137/815 3,388,898 6/1968 137/815 X 3,457,935 7/1969 137/815 3,467,122 9/1969 137/815 3,468,326 9/1969 137/815 3,495,609 2/1970 137/815 Primary Examiner-Samuel Scott Attorney-Craig and Antonelli ABSTRACT: A pure fluid system in which a control stream is capable of causing a mainstream of continuous flow of a pressurized fluid to deflect; the control stream is thereby so coordinated to the mainstream that no direct contact exists between the control stream and the mainstream but instead the control stream is formed as individual stream separated from the mainstream and flowing past the side of the mainstream to merely produce a change in pressure on the lateral side of the mainstream, thereby causing the mainstream to carry out a deflection.

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PURE FLUID SYSTEM The present invention relates to a pure fluid system in which a control stream controls the deflections of the mainstream of continuous flow of pressurized fluid to perform analogue and digital functions corresponding to those in the electronic devices and, more particularly relates to a fluid system in which the control stream is not to come directly in contact with the mainstream, but is formed as a separated individual stream flowing past the side of the mainstream to produce a change in pressure on the lateral side of the mainstream, thereby causing the mainstream to make a deflection.

The pure fluid elements which have been proposed heretofore are generally based on such concept that the control stream issued from the control nozzle is to impinge perpen dicularly against a continuous mainstream of pressure fluid which issues from the main jet nozzle, and that by the interact ing flow of these two streams, the mainstream of pressure fluid is made to deflect by a certain angular amount. However, in those conventional systems the control stream is caused to directly come into contact with the mainstream from the con trol nozzle and so the mainstream is spread away, or a turbulence of the stream may result, thus sometimes spoiling the stability of the stream. Moreover, unless the stream which forms the control fluid against the mainstream is regulated and restricted to a constant value with respect to the shape, velocity, direction, in addition to such other factors as density, viscosity, compressibility, uniformity, etc., of the stream, there might result enlarged errors or unexpected failures in the course of deflection of the mainstream. Further, a noteworthy defect of the conventional pure fluid elements lies in the fact that, as the control is intermixed with the mainstream and dis solved away, the control stream cannot be recovered for being put into fresh use again.

Broadly, therefore, it is an object of this invention to provide a pure fluid system which is so constructed that the control stream, which is capable of causing the mainstream of the continuous flow of pressurized fluid to deflect, may be related to the mainstream, but is not allowed to contact the mainstream to produce an interacting flow as it issues itself out of the control nozzle in the direction perpendicular to the mainstream like the conventional elements; and instead of such impinging mode as described above, the control stream is formed as a separated individual stream flowing past the side of the mainstream without mutually colliding with the mainstream, nor making any peripheral contact whatever, but simply aiming at causing a change in pressure to arise on the lateral side of the mainstream alone, to effectuate the deflection of the mainstream.

According to this system, the mainstream of continuous flow sustains only a change in pressure as caused by the control stream, and so the flow of the mainstream is never disturbed, but is enabled to make deflections accurately and precisely; also the various factors such as property, configuration, or disposition of the control stream can be determined by unrestricted selection, because the control stream never comes into contact with the mainstream. Furthermore, after effecting the deflection of the mainstream satisfactorily, the control stream itself can be taken out or removed, and a repeated use for the removed control stream is possible in the next stages; and besides, by setting up various specific combination of the mainstream and of the control stream, analogue and digital functions similar to those in the electronic devices can be attained like in the conventional elements. As has been described, the system of this invention is to form a separated individual flow of the control stream on one of the lateral sides of the mainstream of the continuous flow, and by means of flow of the control stream itself in what is called Air Curtain Action, one of the lateral sides of the mainstream is perfectly isolated from the outside; and simultaneously, by a dint of the two flows of the main and control streams in what is called Rolling-in Action," the fluid which stays in the isolated area, is dragged to the outside so that one of the lateral sides of the mainstream is rendered lower in pressure than the other lateral side which opens to the atmosphere. The change and consequent difference in pressure on the two lateral sides of the mainstream causes the flow of the mainstream to divert to the low-pressure side in what is called Lower Pressure Side Diverting Action; and after the Air-Curtain Action" of the control stream has been eliminated, the deviation of the mainstream is maintained itself, by virtue of the flow of the mainstream in its passageway by what is called Wall-Sticking Effect. Therefore, being based on such mechanism as described above, one flow of the mainstream can be deflected or diverted in any way desired by the other flow of the control stream by means of ingeniously utilizing the fourfold characteristic natures which the flow of fluids, e.g., air and water, generally have, which are Air-Curtain Action, Roll-in Action, Lower Pressure Side Diverting Action, and Wall-Sticking Effect."

In order to further clarify the functions of the system of this invention, firstly, as the control stream is enabled to control the mainstream of continuous flow to effectuate the positive and perfect deflection of the mainstream from a certain direction to another definite direction, such actions can be adapted for use in what is called logical actions in the electric devices; and secondly, as the mainstream is enabled to divert in direct proportion to the magnitude of the control stream, such actions can be used as amplifier actions in the electric devices; and thirdly, by a control which is formed of various combinations with a plurality of the control streams, the mainstream is enabled to operate compound actions such as OR/AND combinations in the electric devices, and further, as various kinds of load devices, such as diaphragm or postin, are provided in the passageway of the mainstream, the deflection of the mainstream can be utilized for memory actions in the electric devices. All of the above advantage of utilization verify that the flow of pressurized fluid having no moving parts can perform various useful operations similar to those performed by what is called the electronic system.

Another object of this invention is to provide a pure fluid system in which the control stream flowing continuously or discontinuously, which is formed on the lateral side of the mainstream of continuous flow, freely manipulates the deflection of the mainstream, and further, by optionally adjusting factors of the control stream, such as the magnitude of flow, i.e., discharge, or velocity, the deflection of the mainstream is directly proportional to the magnitude of the control stream; in other words, by the controlling actions of the control stream, the output of the mainstream is enabled to perform the proportional amplified action.

Still another object of this invention is to provide a pure fluid system in which, so far as the control stream which is individually constituted separate from the mainstream of continuous flow is related to the mainstream simply for producing a change in pressure on the lateral side of the mainstream, optional modifications can be made for the control stream with respect to the shape or form of the passageway, the differential gradient as against the flow of the mainstream, or the positional relation with the mainstream, in order to have the variegated structure of the two streams.

It is also an object of this invention to provide a pure fluid system by means of which it is made possible to change the duration of time, from a moment to sizeable length, during which the mainstream completes deviation or deflection by a dint of the controlling action of the control stream, which is executed by effecting various modifications of the distance and capacity of the continuative space between the mainstream and the control stream which is related to the mainstream simply for causing a change in pressure to be produced on the lateral side of the mainstream.

It is a further object of this invention to provide a pure fluid system in which one opening is provided on one of the lateral sides of the mainstream of continuous flow, which opening is open to the atmosphere, and which also directly faces the control stream on the other lateral side, simply for causing a change in pressure there, and whereby the opening permits stabilization of the flow of the mainstream; and further by cmploying a combination of the opening and of the control stream, a logical function generally known as a monostable action in the electric circuit can be performed.

It is a still further object of this invention to provide a pure fluid system by means of which, in addition to one control stream which is related to the mainstream only for producing a change in pressure on one lateral side of the mainstream, another control stream is formed at the same time on the other lateral side to impinge perpendicularly against the mainstream for causing the mainstream to divert toward the one side, thereby establishing such a function that one mainstream is caused to be diverted by two control streams, for performing a compound action such as the combination of OR and AND action in the electric circuit.

It is still another object of this invention to provide a pure fluid system in which a plurality of control streams are formed on the respective lateral sides of the mainstream in such a way that each one of the plural control streams is to be related to the mainstream on each of the lateral sides simply for causing a change in pressure there, and the mainstream is enabled toward be deviated to any one direction in which any one of the plural control streams is operated; and by utilizing such functions of a plurality of control streams, a logical function, such as flip-flop, in the electric circuit can be performed.

It is also still another object of this invention to provide a pure fluid system in which a plurality of input means are formed to cause the flow of one control stream related to the mainstream so as to simply cause a change in pressure produced on the lateral side of the mainstream, and even though one single input means is employed out of the plural means, or else, even if some of the input means from among the plural means are combined as a unit at the same time, either of the above patterns of input means for the control stream formation is enabled to equally control one mainstream; and by utilizing such functions of a plurality of the input means, a logical action such as OR or NOR action in the electric circuit can be performed.

It is still another object of this invention to provide a pure fluid system in which a plurality of input means are formed in parallel to cause the flow on one control stream related to the mainstream so as to simply cause a change in pressure produced on the lateral side of the mainstream, and when only one single input means from the plural means is operated, this single means might by itself flow out, failing to form a control stream which is to control the mainstream, but instead, when the input of the control stream is caused to come in from all of the input means, such mutual interaction of the integrated inputs may successfully accomplish the formation of the control stream without losing any part of the inputs to flow out; and by utilizing such function of a plurality of the inputs means, a logical action such as AND or NAND action in the electric circuit can be performed.

It is also a still further object of this invention to provide a pure input system in which a certain number of sets of a plurality of input means are formed in parallel to cause the flow of one control stream related to the mainstream so as to cause simply a change in pressure produced on the lateral side of the mainstream, and in the process of the formation of the control stream, firstly, with respect to one specific set among the plural sets, either one single input, from either one of the input means among the specific set, or the combined inputs from a plural input means are capable of forming the control stream which is to control the mainstream; and secondly, with regard to another specific set among the plural sets, when only one single input from either one of the input means among the specific set is coming in, this single input is not capable of forming the control stream, but instead when the inputs are coming in from all the members of input means of the specific set, such inputs all together are capable of forming the control stream by a dint of their mutually interacting functions; and

with all of the above functions being utilized, the logical action such as AND and OR action in the electric circuit can be performed.

It is also a still further object of this invention to provide a pure fluid system in which one or more of the moving parts such as a diaphragm are provided in the continuative space, which spans the relation of the mainstream with the separately formed control stream, and by means of which moving parts the mainstream is rendered controllable directly or indirectly, thus establishing a structure similar in nature to the general fluid-operating devices.

The pure fluid system of this invention has accomplished various objects as above described. However, it is to be understood that the construction, configuration of the system, along with the fluid, are not restricted to any particular scope.

The above and still further objects, features and advantages of the present invention will become apparent upon consideration of the following detailed descriptions referring to several of specific embodiments as are shown in the accompanying drawings, wherein:

FIG. I is a diagram showing the configuration of the fluid passageway which performs flip-flop action.

FIG. 2 is a cross-sectional view taken along the section line II-II ofFIG. 1.

FIG. 3 is an enlarged detail view of portions of FIG. 1.

FIG. 4 is a part sectional view taken along the section line IV-IV of FIG. 3.

FIG. 5 is a diagram showing the configuration of the fluid passageway pertaining to some modification of FIG. 1.

FIG. 6 is a cross-sectional view of FIG. 5.

, FIG. 7 is a diagram showing the configuration of the fluid passageway which performs proportional amplified action.

FIG. 8 is a cross-sectional view of FIG. 7.

FIG. 9 is a diagram showing the configuration of the fluid passageway which performs OR or NOR action.

FIG. 10 is a cross-sectional view of FIG. F.

FIG. I] is a diagram showing the configuration of a fluid passageway of another system which performs proportional amplified action.

FIG. 12 is a diagram showing the configuration of the fluid passageway which performs AND or NAND action.

FIG. 13 is a diagram showing the configuration of the fluid passageway pertaining to some modification of FIG. 12.

FIG. 14 is a diagram showing the configuration of the fluid passageway which performs AND or OR action.

FIG. 15 is a diagram showing the configuration of the fluid passageway pertaining to some modification of FIG. 9.

FIG. 16 is a diagram showing the configuration of the fluid passageway pertaining to some modification of FIG. 9.

FIG. 17 is a diagram showing the configuration of the fluid passageway of another system which performs AND and OR action.

FIG. 18 is an isometric view of FIG. 17. Referring now to the drawing wherein like reference numerals are used throughout the various views to designate like parts, FIGS. 1 and 2 show a system set up according to this invention, which performs what is called the flip-flop action through such functional mechanism that the continuous flow of a main jetstream F1 is caused to deflect to the right or left by control stream G1, G2 which are provided on both the right and left sides of the main jetstream Fl, so that the main jetstream F1 may be switched over. A system body 1 consists of a plate 2 in which grooves are formed, through which the fluid is to flow, and of

plates

3 and 4 which are shaped up by laminating and bonding the same to the two of the plate 2. The main jetstream F1 comes in as an input through a pipe 5, and reaches an input port 6 on the front, and continues proceed from a main jet nozzle 7 into a control region 8; the main jetstream FI then further goes on through an

output passageway

9 or 10, of either the right or left side, and then flows into an output port 11 or 12, and thus will be finally taken out as an output, from

pipe

13 or 14. The two control streams G1, G2 which flow selectively as streams separated from the main jetstream Fl perpendicularly to the plate 2 and in a plane which is disposed transversely, flow respectively as the inputs from a pipe or 16 into a

control port

17 or 18; the two control streams G1, G2 then further proceed, passing by the extreme end of a

continuative space

19 or 20 which is respectively connected to the right or left of the control region 8, into an

outlet port

21 or 22, and are taken out through a pipe 23 or 24. The two

output passageways

9 or 10 from the main jetstream F1 are formed to provide what is called Wall-Sticking Effect so that the main jetstream F1 may flow while maintaining its state as having stuck to the wall in the neighborhood of thcjunction point P1, 01. On the other hand, there is opening 25 or 26 which is cxposed to atmosphere on the outside of the

output passageway

9 or 10, in order to stabilize the flow of the output fluid F1] or F12. Assuming here, as will be seen in FIG. 3, that the main jetstream F1 is now flowing from the control region 8 into the output passageway 9 on the left side only, bythe dint of the Wall-Sticking Effect" of the junction point P1, and at that moment if the control stream G2 is released to flow to pass by the end of the continuative space 20 which is connected to the right side of the control region 8, then the control stream G2 neither directly impinges upon the main jetstream F1 nor makes any peripheral contact, but the control stream G2 closes off the end of the continuative space 20, which is an ac tion generally known as Air-Curtain Action," and simultaneously, the control stream G2 drags out the residual fluid remaining inside the continuative space 20, which is an action generally known as Rolling-in Action. Accordingly, the pressure inside the continuative space 20, and in turn, the pressure on the right side of the control region 8, is lowered, thereby causing the main jetstream F 1 to deviate from the left to the right side in what is called Lower Pressure Side Diverting Action." By virtue of such an effect, even though the control stream may be diminished at a later time, by the dint of the Wall-Sticking Effect" of the junction point 01 it is possible to cause the main jetstream F1 toflow only through the output passageway 10 on the right side. In just the same way as described above, the main jetstream F1 which is now flowing only on the right side of through the output passageway 10 can be switched over to the output passageway 9 on the. left side, by another control stream G1 which flows so as to pass by the end of continuative space 19 on the left side. Therefore, by selectively causing the flow of the two control streams G1 and G2 as described above, the output passageway of the main jetstream Fl can be switched to either the left or the right, i.e., to 9 or 10. Further, if the control streams G1 and G2 are given a variable modification with respect to the amount of discharge and of velocity, the degree of deflection of the main jetstream F1 also can be changed over a variable range, in direct proportion to the amount of change in the factor of the control streams G1 and G2. By utilizing such function as described above, the action generally known as proportional amplified action can be performed; and furthermore, by changing the length of the

continuative spaces

19 and 20 over a variable range, the time needed for the main jetstream F 1 in completing its deviating action can be changed in various ways in direct proportion to the changing range of the continuative space. It is therefore understood that the operating time can be freely adjusted.

Also, FIGS. 5 and 6 show a system, which performs the flip flop action, similar to that of FIG. 1. In the case of FIG. 1, the directions of flow of the control streams G1, G2 were made to be upward or downward, i.e., perpendicularly, as against the front and rear streams of the main jetstream Fl. Apart from the above, in the system of FIG. 5, the flow direction of the control stream G3, G4 is in the longitudinal direction, i.e., in parallel with the front and rear streams of the main jetstream F2. In other words, the stream of the main jetstream F2 in a system body 27 is quite the same as that of FIG. 1, but the flows in FIG. 5 are made in such a way that the control streams G3, G4 come from a pipe 28 or 29 respectively, as an input to the

control ports

30 or 31, and further go on into the

control passageway

32 or 33 which are formed in parallel with the main jetstream nozzle 7; and then proceed, passing by the end of the

continuative space

19 or 20 which are interconnected to the right or left side of the control region 8, into an

outlet port

34 or 35, thus finally reaching a

pipe

36 or 37, from where the stream is taken out. In this system the control function of the control streams of G3, G4 over the main jetstream F2, is quite the same as that of FIG. 1.

Next, FIGS. 7 and 8 show a system by which the proportional amplified action is performed in such functional mechanism that the main jetstream F3 of a continuous flow is caused to deviate to left or right side in the degree directly proportional to the amount of the control streams G5 or G6, either of which causes the main jetstream F3 to run flow on both the right and left sides. The construction of a system body 38 is approximately the same as the system body 1 of FIG. 1. To pinpoint the difference with FIG. 1, the system body 38 of FIG. 7 provides twofold

continuative spaces

40 and 41 of large size as a unity on both of the right and left sides of a control region 39 respectively, through which the main jetstream F3 runs; and these

spaces

40 and 41 may not induce the "Wall-Sticking Effect at the apex of the triangular intersection where the

twofold output passageways

42, 43 bifurcated from the control region 39 cross each other. In other words the apex is the interface of what is called Splitter C1, which corresponds to the junction point P1, O1, in FIG. 1. In addition to the above, the main jet flow F3 flows in the longitudinal direction and the control streams G5, G6 which flow perpendicularly relative to the main jet flow F3, flow on respectively as an input from a

pipe

44 or 45 into a

control port

46 or 47, and further pass through the

continuative space

40 and 41 on both the right and left side toward an

outlet port

48 or 49, finally to be taken out from a

pipe

50 or 51 which is provided on a straight line in alignment with

pipe

44 or 45, respectively. The main jetstream F3 goes on through the control region 39, coming to hit at the Splitter C1," and as a result, the main jetstream F3 is equally divided into two

output passageways

42 and 43, thereby maintaining no pressure difference between right and left sides. Assuming here that the control stream G5 on one side is made to go through the continuative space 40 of the control region 39, the control stream G5 neither directly impinges upon the main jetstream F3 nor makes any peripheral contact, but the control stream G5 shuts out or closes off the intersection area between the control region 39 and the continuation space 40; which is generally known as the Air-Cunain Action, and simultaneously, the control stream G5 drags out the residual fluid remaining therein, which is known as the Roll-in Action." Accordingly, the pressure between the control region 39 and the continuative space 40 is lowered; and consequently, the main jetstream F3 is caused to deviate from right to left at a rate directly proportional to the amount of the control stream G5. In just the same way as described above, the main jetstream F3 is caused to deviate from left to right at a rate directly proportional to the amount of the other control stream G6 which is positioned so as to flow through the continuative space 41 on the right side. It is therefore understood that if the two control streams G5, G6 flow simultaneously, the main jet flow F3 is caused to deflect to the left or to the right, thereby providing the amplitied action, up to a degree and at a rate directly proportional to the pressure difference between two control streams G5 and G6. Also, as shown in FIG. 7, those control streams G5, G6 can be passed longitudinally through the

continuative space

40 or 41 in parallel with the main jetstream F3. It is further possible to provide another different output passageway, not shown in the drawings, in a position aligned in a straight line with the main jet nozzle 7, between the two

output passageways

42 and 43, thereby obtaining a vicarious out put stream absence of the control streams G5, G6.

Further, FIGS. 9 and 10 show a system in which a plurality of input ports for forming a flow of one control stream G7 are provided, and in which when the control stream G7 has entered from any one of the above plural input ports, the main jetstream F4 of a continuous stream is caused to deviate from one side to the other side, so that the main jetstream F4 may be switched over, as OR or NOR action. The portion inside the system body 52, through which the main jetstream F4 flows, is substantially the same in construction as the system body 1 of FIG. 1. To pinpoint the difference with FIG. 1, in the system body 52 of FIGS. 9 and 10, opening 56 which is exposed to the atmosphere on one side, and a flow of the control stream G7 on the other side, formed by a plurality of

input ports

57a, 57b, and 570, are operatively connected on the right and left of the control region 53, by way of

continuative space

54 and 55. The connection of the

plural input ports

57a, 57 b, and 57c may be done either in parallel or in series, provided that the respective input streams do not offset each other, but flow into one continuous passageway 58, pass by the end of the continuative space 54, and further proceed into one outlet port 59, to be finally taken out through a pipe 60. Also, the main jetstream F4 flows from the control region 53 to the output passageway 61 on the side of opening 56, and is enabled to maintain its own flow by the dint of the Wall- Sticking Effect of the junction point Q2. And, no matter which one of the input streams G7a, G7!) and (17c from whichever input ports of the plurality of input parts, e.g., 57a, 57b, and 57c, may flow into the continuous passageway 58 as the control stream G7, there will be produced in the continuative space 54 an effect similar to the case of FIG. I, and in turn, the main jet stream F4 may be deviated toward the output passageway 62 on the side of the continuous passageway 58, and further, when such a flow of the control stream G7 is intercepted or interrupted, the main jetstream F4 may be allowed to automatically return to the output passageway 61 on the side of the initial opening 56, without meanwhile encoun tering the Wall-Sticking Effect" of the junction point P2. Therefore, no matter which input stream from whichever one input port among a plurality of

input ports

57a, 57b and 570 for forming a flow of the control stream G7 may enter or come in, or even if a plurality of input streams may come in concurrently at the same time, the main jetstream F4 will be caused to deviate from the side of the opening 56 toward the side of the continuous passageway 58.

Further, FIG. 11 shows a system which performs proportional amplifier action similar to the system of FIG. 7. A system body 63 is approximately the same as the system body 38 of FIG. 7. To point out the difference with FIG. 7, in the case of FIG. 11, two control streams G8, G9 are to be formed by the input stream comprising a plurality of input ports respectively, e.g., 64a, 64b, 640, etc., and 65a, 65b, 65c etc. The interconnection of the plural input ports, i.e., 64a, 64b, 64c, etc., and 65a, 65b, 650, etc., may be done either in parallel or in series, provided that the respective input streams may not offset each other, but conversely, shall be summed up together, thereby flowing into a

continuous passageway

66, 67, and proceed on, passing by the end of the

continuative space

68, 69, and through one

outlet port

70, 71, shall be taken out at a

pipe

72, 73. And in addition to the above, the magnitude of the input stream of each and every input port, i.e., 64a, 64b, 64c, and 65a, 65b, 650, shall be made uniform. By doing so, the main jetstream F5 may be deviated to the left or right, through the effect of the action of two control streams G8, G9 in a manner similar to the system of FIG. 7; and the amount of the above deviation of the main jetstream F5 can be amplified to the extent directly proportional to the pressure difference between the two control streams G8 and G9, which is synonymous with the difference of the number of the input streams flowing into the control streams G8, G9 from the

respective input ports

64a, 64b, 64c, etc., and 65a, 65b, 65c, etc.

Next FIG. 12 shows a system in which a plurality of input ports are provided for forming a flow of the control stream G10, and in which one single input coming from any one input port among the plural ports is not capable of causing the main jetstream F6 to deviate, but instead, only when a plurality of inputs come in from the plural input ports simultaneously, the main jetstream F6 is deviated from one side over to the other side so that the main jetstream F6 may be caused to produce the switching action generally known as AND and NAND actions. A system body 74 is approximately the same as the system body 52 in FIG. 9. To point out the difference with FIG. 9, in the system of FIG. 12, the interconnection ofa plurality of input ports, 75a, 75b, etc., for forming a flow of the control stream G10 is made so as to cross each other, in parallel; and at the respective opposite positions, the

openings

76a, 76b, etc., exposed to the atmosphere are provided; and further one continuative passageway 78 is provided, through which the control stream G10 flows from the intersection point 77. Similar to that of FIG. 9, the main jetstream F6 may be deviated from the side of the opening 79 toward the continuative passageway 78 side by the dint of the control stream G10. In this instance, the control stream G10 is not capable of being formed when only one single input comes in from among the plural input ports 75a, 7511, etc., and it flows out through the opening 76a, 76!), etc. which is disposed directly opposite, but does not flow into continuative passageway 78. But instead, if the plural input streams from the

plural input ports

75a, 75b, etc. flown in and are directed to impinge at the intersection 77, all of them interact and flow into the continuative passageway 78, thus successfully attaining the formation of the control stream G10. Accordingly,.when the plural inputs have come in or entered simultaneously from the

plural input ports

75a, 75b, etc., the main jetstream F6 may be deviated toward one side, in direct proportion to to the magnitude of the control stream G10 which is formed by those input streams.

Also FIG. 13 shows a system which performs AND and NAND action, likewise as the one of FIG. 12, and a plurality of the control streams G11 are combined, to perform plural stages of AND and NAND actions. A system body 79 is approximately the same as the system body 74 of FIG. 12. However, as compared with FIG. 12, in the system of FIG. 13 a plu rality of pairs of input ports 80 and input port 81, which each ports 81 is exposed to the atmosphere and confronts a respective port or ports 80, are organized into an upper grade combination of sets of pairs, these sets being mutually crossed, and such upper grade combination is provided in the plurality of stages. The sets of pairs of openings are interconnected in stepped order, one after another, by means of the primary continuative passageway 83 which is provided at the intersection of combinations 82; on one occasion the primary continuative passageway 83 is made as one input port and is combined into a pair with the opening exposed to the atmosphere, and this pair is interwoven with the above combination, by way of a branchlike connection; and further, at the intersection 84 of the last stage, a secondary continuative passageway 85 is provided, through which the control stream G11 flows. The control stream G11 can be formed only when a plurality of particular input ports 80 of several stages are combined with the input stream and flow in such port, and thus the con trol stream G11 can cause a deviation of the main jetstream F7 to one definite side to be performed.

FIG. 14 shows a system in which the control stream G7 of FIG. 9 and the control stream G11 of FIG. 13 are put into a pair, and such pairs are organized into a set of pairs, so as to operate AND and NAND actions of plural stages. A system body 86 is integrally set up in a continuative passageway 87 of one control stream G12 which passes by the continuative space 54 at the last stage. A plurality of input ports 89 are ramified into a plurality of pairs in the continuative passageway 90. And with respect to one pair of

input ports

89a, 89b, 89c, etc., just as in the case with FIG. 9, no matter from whichever input ports of the

pair

89a, 89b, 890, etc., the input stream may cone in, this input stream is made to flow in one single secondary continuative passageway 90a. And besides, another pair of input ports, 89A, 89B, 89C, etc., just as in FIG. 13, connect the combinations in which the pairs of input ports 89 and the opening 91 are mutually crossed, in a steplike order one after another, by the primary continuative passageway 92 and those passageways 92 are integrally set up in one single continuative passageway 90A, and when the plural input streams come in simultaneously from particular input port 89A,'or 898, or 89C, the input stream may be made to flow in the secondary continuative passageway 90A. And then, the control stream G12 is a combination of input ports 89a, 8%, 09, etc., which perform OR action, just as was the case with FIG. 9, and the input ports 89A, 89B, 89C, etc., which operate AND action as in FIG. 15, and sothe control stream G12 forms one flow of a stream which controls the main jetstream F8.

Also FIG. shows a system which operates an OR or NOR action, similarly to that of FIG. 9. In the system of FIG. 9, the flow direction of the control stream G7 was defined longitudinally, in parallel with the longitudinal direction of the flow of the main jetstream F4, whereas in the system of FIG. 15, the flow direction of the control stream G13 is defined as vertical, transversely to the longitudinal direction of the flow of the main jetstream F9. The

pluralinput ports

93a, 93b, 93c, etc., which are provided on a system body 52A are integrally set up in one continuative passageway 94, and this continuative passageway 94 passes, coming from up and down direction, over to the end of the continuative space, not shown in the drawings. Thus, the control stream is enabled, just as the case with FIG. 7, to cause the main jetstream F9 to deviate toward the side of the continuative passageway 94.

Next FIG. 16, shows a system in which the control stream G14 flowing in a system body 528 is, just as in the case of FIG. 9, so constituted as to operate an OR or NOR action, and at the same time, a diaphragm 96 is provided inside a continuative space 95, and besides, in a control region 98, which is set up inside the main jetstream F10 which flows through the pipe 97, there is provided an all fluid system, super-low-pressure valve 99, of which the input port 100 receiving pilot pressure is connected to the continuative space 95, and through such configuration of the valve 99, the main jetstream F10 flowing from the pipe 97 is to be controlled. Therefore, assuming here that the input stream now comes out from a plurality of input ports 101a, 101b, 101e, etc., and also that the control stream G14 flows through the continuative passageway 102, and passing by the end of the continuative space 95, finally flows into output port 103, then the control stream G 141 performs its function just as in the case of FIG. 9, and consequently the pressure inside the continuative space 95 is lowered, thereby causing the diaphragm 96 to deflect against the pilot pressure of the valve 99 which is going to reach a certain activating point, and then the valve 99 is actuated to work and intercepts the flow of the main jetstream F10.

Further FIGS. 17 and 18 show a system which is so constituted that when either one of the plural control streams G15, G16 impinges upon the flow of the main jetstream Fll, from one side of it, the main jetstream F11 may be deviated toward the other side of it, and only when the separate control streams G17, G18, simultaneously flow on the other side of the main jetstream F11, the pressure of that lateral side of the main jetstream F11 may be lowered to create a condition in which the main jetstream F11 may be deviated toward that side, so that a compound action of OR and AND action can be performed. The flow of the main jetstream F11 in a system body 104 is based on a principle similar to the main jetstream 1 of FIG. 1. However, in the system of FIGS. 17 and 18 the control streams come out in four streams. The two control streams G15, G16 on the right side of the main jetstream F11 come out of the respective control ports, 105, 106 through one single control nozzle 107, go on to impinge against the main jetstream F11 and thus causes the main jetstream F11 to deviate toward the output passageway 109 from the output passageway 108 on the right side. Accordingly, the main jetstream F1ll can be controlled by a flow of either one of the two control streams G15, G16 so as to be operated as OR action. With respect to the other two control streams G17, G18 on the left side of the main jetstream F11, they come out of the respective control ports 110 and 111 and go to the

continuative passageways

112, 113 which are positioned nearer to each other and are open by way of the upper end of the interior of the continuative space provided on the left side of the control region. And, besides, the undersides of the

continuative passageway

112, 113 are connected to the

output ports

116, 117 which are exposed to the atmosphere and are provided aligned, respectively.

Accordingly, when only one control stream G17, or G18, flows, the

port

116 or 117 which is not subjected to a flow by the other control stream, is exposed to the atmosphere, so that neither the control stream G17 nor G18 lowers the pressure inside the continuative space 115. However, when both of control streams G17 and G 18 flow simultaneously, the control streams G17, G18 flow, passing from the

continuative passageway

112, 113 into both of the

output ports

116, 117 respectively. Therefore, just as with G1 in the case of FIG. 1 the control streams G17, G18 lower the pressure inside the continuative space 115, and thus cause the main jetstream F11 to deviate from the output passageway 108 on the right side toward the output passageway 109 on the left side so as to be operated as AND action.

Having described and illustrated a number of embodiments of the pure fluid system in accordance with the present invention, it is believed obvious that other modifications and variations of the details of construction illustrated and disclosed in the specifications are possible. It is therefore to be understood that changes may be made in the particular embodiment of this invention described which are within the full intended scope of the invention as clarified by the appended claims:

What we claim is:

1. A pure fluid system comprising:

means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control region so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, characterized by a plurality of input means for forming the flow of said control stream, said control means being provided with a number of opening means to receive said control stream in such a manner that the lateral side of the control stream formed by an integrated flow from said plural input means is in operative communication with said control region in such a manner as to avoid contact between said control stream and said mainstream.

2. A pure fluid system, comprising:

means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control region so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, characterized by a plurality of input means for forming the flow of said control stream, said control means including a number of opening means positioned to receive the flow formed by one of said plural input means, and a number of opening means positioned to receive the flow of said control stream formed by an integrated flow from all of said plural input means, and the latter side of said control stream being in operative communication with said control region in such a manner as to avoid direct contact between said control stream and said mainstream.

3, A pure fluid system, comprising: means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, a number of outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means receiving the flow of said control stream and in such operative communication with said control region as to avoid direct contact of said control stream with said mainstream to control the latter by the former, characterized by a plurality of sets of input means for forming said control stream, said control means including a number of opening means positioned to receive the flow formed by one of said input means of one given set, and a number of opening means positioned to receive the flow formed by the combination of an integrated flow from all of said plural input means of said one specific set and an integrated flow from said plural input means of another specific set, and the lateral side of said control stream being in operative communication with said control region in such a manner as to avoid direct contact between said control stream and said mainstream.

4. A pure fluid system, comprising:

means for issuing a mainstream of continuous flow ofa pressurized fluid means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said control region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control region so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, wherein a plurality of input ports are provided on each side of said control region for forming the flow of said control stream from any one of said input ports, and continuous passage means are provided for operatively, connecting each plurality of inlet ports and said continuative space on each side of said control region.

5. A pure fluid system, comprising:

means for issuing a mainstream of continuous flow ofa pressurized fluid, means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control re ion so as to avoid direct contact of said control stream wit said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, in which opening means exposed to the atmosphere are provided positioned on the side of said control region opposite to the side thereof facing the control stream, characterized in that a plurality of input ports are provided for forming the flow of said control stream of any one of said input ports, and continuous passage means are provided for operatively connecting said input ports and said continuative space. 6. A pure fluid system as defined in claim 5, wherein the direction of flow of said control stream is substantially perpendicular to the flow of said mainstream.

Claims

1. A pure fluid system comprising: means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control region so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said Control region corresponding to said control stream, characterized by a plurality of input means for forming the flow of said control stream, said control means being provided with a number of opening means to receive said control stream in such a manner that the lateral side of the control stream formed by an integrated flow from said plural input means is in operative communication with said control region in such a manner as to avoid contact between said control stream and said mainstream.

2. A pure fluid system, comprising: means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control region so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, characterized by a plurality of input means for forming the flow of said control stream, said control means including a number of opening means positioned to receive the flow formed by one of said plural input means, and a number of opening means positioned to receive the flow of said control stream formed by an integrated flow from all of said plural input means, and the latter side of said control stream being in operative communication with said control region in such a manner as to avoid direct contact between said control stream and said mainstream.

3. A pure fluid system, comprising: means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, a number of outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means receiving the flow of said control stream and in such operative communication with said control region as to avoid direct contact of said control stream with said mainstream to control the latter by the former, characterized by a plurality of sets of input means for forming said control stream, said control means including a number of opening means positioned to receive the flow formed by one of said input means of one given set, and a number of opening means positioned to receive the flow formed by the combination of an integrated flow from all of said plural input means of said one specific set and an integrated flow from said plural input means of another specific set, and the lateral side of said control stream being in operative communication with said control region in such a manner as to avoid direct contact between said control stream and said mainstream.

4. A pure fluid system, comprising: means for issuing a mainstream of continuous flow of a pressurized fluid means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said control region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control regioN so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, wherein a plurality of input ports are provided on each side of said control region for forming the flow of said control stream from any one of said input ports, and continuous passage means are provided for operatively connecting each plurality of inlet ports and said continuative space on each side of said control region.

5. A pure fluid system, comprising: means for issuing a mainstream of continuous flow of a pressurized fluid, means forming a control region into which said mainstream proceeds to flow, outlet passage means so positioned as to receive said mainstream from said control region, means for forming a flow of a control stream separated from said mainstream including control means having a continuative space by way of which the lateral side of the control stream and said region are interconnected, said control means receiving the flow of said control stream and in operative communication with said control region so as to avoid direct contact of said control stream with said mainstream and to control the latter by the former through the formation of an air curtain wherein said control stream closes off the end of the continuative space in communication with said control region while simultaneously removing residual fluid within the continuative space so as to decrease the pressure and divert said mainstream to the side of said control region corresponding to said control stream, in which opening means exposed to the atmosphere are provided positioned on the side of said control region opposite to the side thereof facing the control stream, characterized in that a plurality of input ports are provided for forming the flow of said control stream of any one of said input ports, and continuous passage means are provided for operatively connecting said input ports and said continuative space.

6. A pure fluid system as defined in claim 5, wherein the direction of flow of said control stream is substantially perpendicular to the flow of said mainstream.