DE2030012B2 - METHOD OF OPERATING A MULTISTABLE FLOW AMPLIFIER AND MAIN FLOW SUPPLY DEVICE FOR PERFORMING THE METHOD - Google Patents

Description

symmetrical fluid amplifier flows. The invention is based on the object of this

Overcoming Deficiency and Method of Operating a Multi-Stable Fluid Booster

50 of the type described above with memory function to create the efficiency of which is considerably improved by reducing the energy expended for the main flow

The invention relates to a method for operating unchanged strength of the output signal, ben a multistable fluid booster, 55 To solve this problem is in the invention in which a main flow channel as well as approximately have been assumed that to the upright hair at right angles The associated control channels for storing the stored information only have a very good setting the main flow in an alternating vortex continuous pressure medium flow required chamber lead and borrowed from this by stream, while an increased fluid energy center divider separate outlet channels go out, 60 is only needed if an output signal abs and taken a main flow supply device or taken out the stored information Implementation of this procedure. should be read.

A fluid booster can be The object set is according to the invention

appropriate choice of predetermined parameters, as solved by a method that thereby geForm and formation of the flow channels, option 65 indicates that the main flow channel of the fluid pressure etc. multistable shape- constantly a weak flow (supply, so that the flow is supplied even after the flow has ended) with which the control signal continues to be maintained in the initial position of the main flow,

3 4

and only in the event of a decrease in performance at an exit drive according to the invention is that for

channel of the supply flow a power the supply flow a line with a

flow is superimposed. Such a short-term throttle and parallel to it for the power flow

Reinforcement of the main flow; a line with a switchable valve arranged

Middle amplifier is without impairment of the gen 5 is. Preferably in the actuation line

stored information possible. this device a fluid pressure

With the method according to the invention shock-inducing device, e.g. B. a bellows complex functions such. B. repeated addi pump connected. By using a function or subtraction, in a simple manner and such a main flow delivery device can be performed very quickly. Because for the individual systems equipped with it, as a result of the individual arithmetic operations, the weak additional gain function is essentially sufficient for a combined pressure medium flow, and is only built up after completion, since in numerous cases all the arithmetic operations and, if on, the number of necessary amplifications Relemente past a power beam is required, one can be reduced. The method of the Erfinkurzzeitige gain of the pressure medium flow, i ₅ dung can alternatively also be carried out without affecting the stored result of which the power supplied to the main flow channel is encryption or falsified. care flow with which the set position

A fluid booster in which the main flow is maintained, after flow is temporarily shut off, has already been described in the supplying of the power flow through a suction device in US Pat. No. 3,199,781. The 20 stroke that causes the fluid pressure surge-operation of this known fluid booster device is temporarily interrupted, however, is based on the idea that the reversal and the resumption of the supply flow of the power flow in a multistable flow through a predetermined outlet port, al of the asymmetrical booster with a weaker metric Fluid amplifier flows.
To be able to bring about a control signal than is possible with continuously complex pressure medium-operated data processing. systems are often operated with rigid cycle times. For this purpose, the known arrangement drives. For the AND voltage, for example, the power flow is interrupted for the time of the functions, the information signals are interrupted with a certain supply of a control signal and clock signals are connected so that they are initiated synchronously with these when the control signal is already present. 30 the signal functions are formed. In this way it is achieved that a weaker clock signal, represented as the main flow, can be used with a softer control signal, since in this case the information data are not supplied as control signals for the separation of the boundary layer of the line. In these cases, the energy required for the radiation beam must always be expended. Control signal until the next clock signal is complete. _{35 are} maintained. In the process according to

The mode of operation of the fluid amplifier of the invention, on the other hand, can pass the information through

according to the said USA patent specification, which has shown the relatively weak pressure flow and

The aim is not to save the energy required for the line until the clock signal is used to

to reduce stungsströmung, as in the procedure stronger power flow is triggered and that

according to the invention, but with a weaker control ₄₀ output signal in the required strength for

signals get along. As a result of the interruption. In this way you get an AND-

the power flow in the known arrangement circuit with memory function,

The invention is explained below with reference to the

known fluid intensifiers also do not provide any drawings of exemplary embodiments

Memory function; because this is not about 45 purifies. It shows

a continuously supplied power flow, Fig. 1 is a longitudinal section of a bistable flow

because this is always switched off before a new medium amplifier with a throttle line and

Control signal is supplied. an actuation line for the pressure medium supply,

In the method according to the invention, on the other hand, FIG. 2 shows a diagrammatic view of a diagram by only briefly supplying the power representation of an application example for the flow flow - namely, in each case for the duration of the mean amplifier according to FIG. 1 and
output-side signal or actuation decrease - Fig. 3 another embodiment of the Ströder energy requirement is considerably reduced, and the medium amplifier according to Fig. 1 with an automatic, constantly supplied weak flow remains un- reset.

maintained depending on whether a ₅₅ rji _em F i g. 1 shown, denoted by 10 control signal is supplied or not. Order contains a bistable fluid flow

When using the method according to the invention stronger 11, in which a main flow manure can, especially in systems with a channel, hereinafter referred to as main channel 12, ausregroßen Number of interlinked flowing beams optionally stable in a first centralizing amplifier, a considerable improvement in the outlet duct 13 or in a second outlet duct 14 Energy balance can be achieved. Another benefit is being distracted. The respective distraction takes place through is that through the reduction achievable here / with turbulence generation after the mouth 15 of the of the required pressure medium volume the risk of the main channel 12. For this purpose, either Pollution of the system is reduced, also via a control channel 16 or via a control such as Due to the reduced volume throughput, a control pulse is also supplied to channel 17. This can the noise development is reduced. either in the form of a pressure pulse or a

An embodiment for a main flow negative pressure pulse or in the form of a passing

feeding device for carrying out the passing interruption or throttling per se

5 6

continuously flowing control currents in the control Neten valve arm 46 opened in a clockwise direction, so channels 16 and 17 are generated. A through the passes through the unthrottled cross-section of the Control pulse supplied to control channel 17 causes actuation line 44 a relatively strong power deflection the flow exiting from the main channel 12 to the fluid booster 11, which, Main flow into the outlet channel 14, and this 5 when the fluid amplifier 11 to this He keeps position after the end of the control pulse time is switched to the outlet channel 14, off the control channel. The same beam deflection is sufficient to close the electrical switch 24, can, as mentioned, also be achieved if the following is the mode of operation of that shown in FIG the control channel 16 continuously supplied control arrangement described described. As an output stream temporarily throttled or under-10, "idle" is assumed here, will break. In the other case, if about the only by the line 43 a weak Control channel! 16 an additional control pulse trains-flow reaches the fluid amplifier 11, leads or the control flow in the control channel 17 before while the actuating line 44 through the valve is temporarily throttled or interrupted, fin- 45 is closed. The fluid amplifier 11 Det a deflection of the main beam in the outlet 15 is either on the outlet channel 13 or on the channel 1.3 instead, outlet channel 14 switched, with the latter Fa !!

In the arrangement according to Fi g. 1 is at the off switch 24 remains open. To save a On the output side of the fluid amplifier 11, the fluid amplifier 11 transmits a signal Load in the form of a counter pressure through a fold - a control signal in the control channel 16 or in the control bellows 20 shown, the channel 17 via a line 21 to the 20 in one of the described bistable to-outlet channel 14 is connected. To avoid stalls set. A control signal in control channel 17 of disruptive influences on the processes in the causes the distraction of the through the main channel Fluid intensifier 11 is the line 21 via 12 supplied flow into the outlet channel 14. a fluid throttle 22 to the atmosphere for reading or retrieving this information tied together. With the bellows 20, a spring 25 acts at any time, only the Ven-23 now needs together that these are so long to be opened in together 45, so that now through the pressed State lasts until a correspondingly stronger leivom under the effect of the activity direction 44 The flow or slurry flow supplied to the outlet channel 14 to the fluid booster 11 the pressure of which the counterforce of the spring 23 is overcome and according to its setting in the that will. Adjacent to the bellows 20 is an electrical 30 outlet duct 14 which is directed. Under the effect fresh switch24 is arranged, which with the over- this increased power flow is the case A predetermined minimum force is reached by actuating the bellows 20 and the electrical switch 24 the bellows 20 is closed. As long as it's closed. If, however, the Strömunes was through the Auslaßkanai 14 incoming flow medium amplifier 11 in the opposite Schaltzueinen does not exceed a predetermined limit value. 35 stood, so the power flow arrives in the absence the switch 24 is open. passage canal 13. and the Schaher 24 remains grouted.

The main channel 12 of the fluid amplifier From the description so far it is apparent that 11 is connected to a pump, which in the embodiment shown in the arrangement for the storage guide form 1 as a bellows 30 with the function of the fluid booster 11 constantly a lifting bracket 31 is shown, which via a 40 a very weak flow (supply flow) Eccentric 33 is maintained by an electric motor 32, while the much more powerful will. The lifting bracket 31 performs under the kere power flow only for the duration of the opening action the rotating Ex / ceiiterschcibe 33 a voltage of the valve !. 45 using the ccspei lifting movement to the left. so becomes effective as a result of the secured information. The corresponding expansion of the bellows 30 via an inlet 45 output signal for operation: or non-valve 34 Air or something else, when the switch 24 is actuated in this way, can somft be denied at any time used fluid sucked. When being called, for example in a timed handler subsequent lifting movement of the lifting bracket 31 gigkcit from the triggering of other functions. A to the right is the intermittent retrieval of the respectively stored signal located in the bellows 30 Air through an outlet line 35 into a container 50, for example via a cam drive 47. 40 pumped. The respective prevailing in the container 40 is synchronized with the assigned S \ stern aneetrie pressure is monitored by a pressure monitor 41, is ben.

of a specified pressure value In the illustrated in Fig. 2 Anwenduncseincn Motorstcuerschalter 42 opens on exceeding and thus the example ^f or the arrangement according to Fiel pump are off. Of course, bit information supplied in parallel to the Vcr 55 can also be converted into information in serial bit supply of the container 40 with print medium. Other known pump systems are used for this purpose. unit 50 with six bistable fluid connections

The container 40 is provided with the main channel 12 via stronger 51, each of which is a bit. so a line 43 is connected to a throttle, one of which can store binary information. The training throttle effect is designed so that the constant 60 training of the fluid intensifiers 51 corresponds Fluid flow through the main channel 12 that of the fluid amplifier 11 after and the output channel 14 for actuating the electrical Fig. 1. The output side is also a corresponding one Switch 24 is not sufficient, but the Bc- the pneumatic-electrical converter 60 is provided, drove and the switching of the flow amplifier consisting of a bellows 61. of the supply 11 enables. From the container 40 continues to lead 65 increased flow or pressure over the allel to the line 43 an actuating line 44. the collecting line 64 against the force of a spring 62 is initially blocked by a valve 45. If that an electrical switch 63 closes the switch valve 45 by a pivoting movement of the associated 63 is thus actuated whenever from

an actuation signal arrives at one of the fluid amplifiers S1. The upper exhaust port 52 each fluid amplifier 51 is connected to the manifold 64 via a line 53, each of the lines 53 being connected to the atmosphere via a throttle 54, and further there is a check valve 55 in each of the lines 53. Through the throttles 54 and the check valves 55 are the individual fluid amplifiers 51 to avoid interference their function shielded from each other. The main channels 56 of the fluid intensifiers 51 are over one check valve 70 a each connected to a collecting line 70 and each via a further check valve connected to a pneumatic commutator 73 via feed lines 72. The check valves 71 ensure that the fluid intensifiers 51 are independent of the pressure and Flow conditions in the supply lines 72 from the collecting line 70 are constantly supplied with a flow will. The feed lines 72 have their opposite ends at associated mouths connected to a distributor plate 74, the mouths being distributed in such a way on an arc of a circle are that they are individually one after the other with a bore 75 in a rotating commutator disc 76 be aligned. A connection to a chamber 77 is established via the bore 75, which is constantly supplied with pressure medium by a pump (not shown) via a line 78 will. The drive shaft 80 for the commutator disk 76 is driven by means of a (not illustrated) Synchronous motor driven via a single-speed clutch 81 as soon as a Electromagnet 82 a coupling bolt 83 is lifted.

In the course of one complete revolution of the commutator disk 76, the bore 75 is thus made successive connections from the chamber 77 to each individual supply line 72, whereby the main channels 56 of the fluid intensifiers 51 successively corresponding actuation ^ flow impulses are supplied.

The control information for the operation of the in F i g. 2 converter unit 50 shown are from Unem paper tape reader 90 supplied. Lead from this individual air lines 91 to the lower trunking 57 the individual flow amplifier Sl. The tape reader is via an electrical line 93 90 still connected to the electromagnet 82, so that each time with a reading process a duty cycle of the converter unit 50 is initiated. When reading the perforated tape 94 in Perforated tape reader 90 is depending on whether there is a hole or no hole at the individual hole positions Hole is established, the control channels 57 of the individual fluid intensifiers 51 a control pulse or no control pulse supplied. In those fluid amplify 51, which have a control pulse obtained, the supply flow in the main channel 56 is diverted into the outlet channel 52, however without this flow being sufficient to actuate the electrical switch 63. If immediately afterwards the bore 75 of the commutator disc 76 with the feed lines 72 individually one after the other the chamber 77 connects, the fluid amplifiers 51 successively receive a power flow pulse, each of which either causes the switch 63 to be actuated or remains ineffective, depending according to what information is stored in the individual fluid amplifiers 51. The single ones Bit information is therefore now available in series on the lines 65 of the electrical switch 63 Disposal.

If the bore 75 of the commutator disc 76 is the third embodiment with a self-resetting storage connection between the chamber 77 and a return line 79 through which all fluid amplifiers 51 can be reset by means of a control pulse in the control channels 58 and are ready for the next cycle. After a one complete revolution of the drive shaft 80, the coupling bolt 83 of the single-turn coupling moves under the action of a spring 84 reactivates and stops the rotary movement of the commutator disk 76.

In Fig. 3 is an opposite of FIG. 1 shows a modified embodiment with a self-resetting memory function. A fluid amplifier 100 has outlet channels 101 and 102 in such a non-symmetrical arrangement that the jet supplied through the main channel 103 flows into the outlet channel 101, respectively. The construction of the output-side converter with the bellows 104 corresponds to the previously described embodiments of FIG. 1 and 2 match. The supply flow is fed to the main channel 103 by a tangential pump 105 via a line 107 with a throttle 106. A bellows pump 108 is also connected in parallel to the line 107. The rotation of a cam disk 109 causes the bellows pump 108 to be actuated against the action of a return spring 110, with a relatively strong power flow briefly reaching the line 107 and from there through the main channel 103 to the fluid booster 100.

The supply flow in the main channel 103 is controlled by a control signal in the control channel 111 of the fluid amplifier 100 is deflected into the outlet channel 102, so that the subsequent power flow pulse also enters the outlet channel 102 and loads the connected converter

5 "actuated. In the course of the further rotational movement dei cam plate 109 is 108 sucking effectively dei action of the return spring 110 on the line 107, the bellow pump, whereby the constant supply flow in the main channel 103 under brocher. If the suction stroke of the bellows pump 108 terminates sets the supply flow of the tangential pump 105 to the fluid booster 100 like the one, but due to the asymmetrical arrangement of the outlet channels 101 and 102 a steady flow reaches the outlet channel 101. The fluid booster 100 is automatically reset.

1 sheet of drawings

309515/2 *

Claims (4)

1 2 channel flows into which it was directed under the influence of the control claims: signal. The reason for this is a layer effect that the fluid jet in 1. Procedure for operating a multistabi- its position once it is held and a len fluid booster, in which a 5 return to the position it had assumed before the effective main flow channel and the control signal were approximately at right angles, prevents the control channels from being used for position adjustment. the main flow in an interaction- One possibility of the formation of such lead chamber and consists of this through flow multistable fluid intensifier central divider separate outlet channels go out, io in, in the main flow in the area of action of the characterized in that the control signals, so after exiting the Main flow channel constantly creating a weak main flow channel turbulence. That Flow (supply flow) is supplied can be done by various means, e.g. B. with which the set ·. Location of the Huuptströ- by corresponding design of the walls of the mation is retained, and only for power 15 main channels, as it is for example in the USA. decrease in an output channel of the Versor patent specification 3,283,767 is described. flow flow superimposed on a power flow The advantage of such a fluid intensifier will. kers consists in the fact that it has a memory function 2. Main flow supply device to practice as long as the supplied flow is maintained of the method according to claim i, 20 th remains, regardless of the result characterized that changes in pressure and flow for the supply-guided flow a line (43) is exposed to a throttle speed. The unresponsiveness and parallel to this, for the power flow, a Schwan line, which is often unavoidable compared to such a power flow (Actuating line 44) with a circuit is a particularly important feature for the ble valve (45) is arranged. 25 Reliability of such fluid amplifiers. 3. Main flow supply device according to An. One has so far always assumed that claim 2, characterized in that such fluctuations for the operation of a flow actuation line (44) are a fluid booster (bellows) causing a fluid booster in principle undesirably In all known fluid intensifiers pump 108) is connected. 30, the function is based rather on one possible 4. Method for operating a multistab- uniformly supplied main flow. len Slrucungsmittlärkcrs, in which a The strength of the main flow to be supplied The main flow channel and approximately at right angles are generally oriented in the case of fluid intensifiers associated control channels for position adjustment, in particular according to soft energy on the respective the main flow in an interaction 35 outlet channel must be available. Since the closet lead and "of this flow-guided main flow, however, continuously dividing the center separate outlet ducts, which must be maintained. around the characterized in that the mainstream information is maintained during an outflow channel supplied supply flow, input signal or a corresponding output-side with which the set position of the main 40 actuation is often only removed periodically, flow is maintained after feeding z. B. synchronous with one in a certain Arder The power flow through a suction stroke of the connected system operated by the power cycle is the the energy consumption of such fluid booster devices causing the fluid pressure surge temporarily interrupted is relatively high, so that these elements with and the resuming supply flow 45 operated at an unsatisfactory level of efficiency through a predetermined outlet channel of the un-.