DE1924515A1 - Fluidic flip-flop - Google Patents

Description

'. THE- BENDIX CORPORATION, Fisher Building, Detroit, Michigan, U.'SA

Fluidi ο flip-flop.

The invention relates to a Fluidic Tlip-Flop ^ir orric3atiing with two operating modes, the output of the first stage controlling the output of the second stage so that an output pulse is generated for every two input pulses.

A Fluidif flip-flop device of such a Type- ^C! is known, and contains a first or splitting stage for receiving counting pulses in order to direct the counting pulses to the control device of an interaction zone of a second or output stage, which controls the direction of the medium flow in the one or the other of the two output branches of the second stage controls.

While working with this device it was found that drß cc desirable is an initial output pulse in one to build up a certain branch of the second stage, and in the absence of counterparts at the entrance of the first Step. In so far as it is sometimes necessary to obtain output from one branch and sometimes from the other branch, the device could not be intentionally asymmetrical - ". unguided to an initial condition ■ ° -fh "ffen, dpß one of the available paths a ^ sget will. On the other hand, external tax measures defied

009813/1079

BATH ORIGINAL

Increasing the cost of the device; at and the device will thereby more complicated.

One object of the present invention is to provide a -symmetrical resettable Fluidic Flit> - pile »?, without using complicated external tax measures, which in the absence of a control signal or counting pulses in the one or another 7-UPtand can be brought.

Further advantages and details of the invention follow up the following description of an embodiment with reference ⁿ vf c H e "in ^ .i ^ e drawing in a two-stage resettable Flnidi""- ^ 'lip-Fl op with randomly signified a State, other: State, and. Tax inputs inclined is. ■.

In the drawing, a -inzigen zweistuferrüekstellbarer Fluidi ¹ is shown flop, the ^ prltstufe having a first or on, generally designated 10 siit is ^{4 "LIP?":} Urd "ine second or output stage includes, generally nit 1? is designated. The splitter stage 10 has setting and reset inputs 14 and 16 and a counting input 18, which meet at a median fluctuation zone? 0. ^λ Γ οη d.er medium interaction zone 20 are diverted medium four lines 22, 24 · 26 and 28th The lines 22 and standing for 2 ^h in a sieve intersecting relation to the adjustment and Sückstellkenälen 14 and 16, so that the medium interaction zone would cross 20-suppressing pub a flowing of these channels medium, in the absence of flow vus the other two inputs, and then would flow through the corresponding line 22 or 24. A divider 29 is in line with the metering channel 18 and downstream of the medium interaction zone 20. The divider 29 provides the fork between the two channels 26 and 28, the run slightly offset from the center line of the channel 18 on both sides of this center line and

009813/1079

are arranged in such a way that they receive medium pulses from the counting channel 18 intercept 'with pulses from either the setting or Reset channel 14 or 16 koinzi <Heren can.

The lines 26 and 28 have conforming walls 25 and 27 for the medium. The clinging walls provide the split step 10 with a memory so that as soon as a flow is established in one of the lines 26 and 28, this memory remains, until it is deliberately postponed. Mt lines 26 and 28 are ventilation openings 3.0 and 32 in flow connection, which ensure "an isolation of the splitting stage so that they due to bridge fluctuations downstream in the output stage 12 is not affected. ·

The ventilation openings 30 and 32 also prevent -d ^ r? Occurrence of excessive circular flow in the canal er. 26 and 2S. If pressure builds up in channels 26 or 28, it can be seen that this pressure is causing unintentional erasure of memory. the Aufsp ?ltstufe 10 can cause. This could s "· * ^rt i" nen unwanted oscillation of the oN-gwngsst \ ife lead. Εε w: Ti ° also sparked that a circulating flow in the channels 22 and 24 and in the streams 26 and 28 can also cause the output stage to oscillate. The ventilation openings 30 and ?? therefore ensure that a swaying of the exit causes ^a v? one ^ i of these two reasons, prevents t-iird *.

The lines 22 _t ^ΟΔ , 26 and 23 are not a second. HediiimwecliselvrirlcuiigssoTie ^ -0 in flow ^ erbigung, with ur, -te'r. Medium under pressure rv? dem Eir.g ^ nirskPn ?! M-2 ver ^ οτ ^ρί "wi ^ d, which is formed with a pressure point P *. These lines 22, 24 _; "? 6 and? 8, the EingsngskMn ?! ^ 2 ^: ur.d the Hodiv.tnwechselwirlcL-T'T ^ zone &quot; Γ * form a Tsil ^ sr Aus ^^ nTSPt ¹ ^ f 12. The Χ @ ίt ^ Ti ^ er · UJi- and 4-6 i ^r ervollstäxi ^f 3.i ^r "^< 5r ⁱ die Aup ^^ n ^ pr ^ uf

009813/1079

BATH ORIGINAL

12. The lines 22, 24, 26 and 28 form control channels that interact with the input supply source P, control, which of the two output channels 44 or 46 from the the medium flowing out of the channel 42 is acted upon. The vents 48 and 50 are used for the output stage 12 from pressure fluctuations to isolate the downstream of it may occur. The output stage 12 is essentially a bistable fluidic flip-flop, which shows a storage capacity or a memory. ■■■ -..-

The method of operation of the device is as follows: When the supply _{pressure P o is} provided, an output appears in one of the output channels 44 or 46. It is assumed that there is an outlet in channel 44, a circulating flow is built up through channels 22 and 24 from the non-conforming control opening side, this runs through the split-up floors 10 and down to the low-pressure zone on the impacted side of the output stage 12, ie, in a counterclockwise direction. This is the case, d? ^1, the flow of the medium tends through the channel 44 to? n to the channels 22 and 26 provided to suck. Due to the. from the ventilation openings 30 and 32, insulation, the circulating flow in channels 26 and 28 is negligible and oscillation of the output stage is prevented, since a circulating flow in both pairs of channels 22 ,? ^Ll and 26, 28 is only sufficient to cause the output stage to oscillate and 52. continue to prevent oscillation in that ε-ie make the loading of the Aufmalt stage 10. uninfluenced, since loading in the absence of ventilation openings of the Ged Awareness of the split ^ level 10 can extinguish and the Sohwingneigung is supported . . ■. ■ -. ■ - ■ ·. ...-- ■

A counting signal coming in from channel ^ 8 tends to be in the. K> r. "1 26 to enter due to the circulating flow from the

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K ⁿ v. ^r 1? 4 · ζ vvi T "η ** 1 P 2, where cLuz ¹ ct. d? τ Au-ß c 9 π r * ζ ζ ί ρ * χι 9 1 Xv den Au s—

0 0 9813/1079 ......

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output channel 46 is switched. The circulating flow has the effect that signals coming in from channel 18 preferentially enter one of the two available channels 26 and 28. At this point in time the pressure differential across the control orifices of the output stage 12 is reversed and the circulating flow is also reversed switch away. This clinging wall! '"Sees the splitting stage 10 with a storage capacity or with a memory. If the signal is removed from channel 18 at this point in time, the output remains in output channel 46 channel 28, which results ΐ / ieder due to the circulating flow, so that the output signal of the Ausgongs stage from the oUTPUT CH ^r> l 46 to the output port 44 is switched and thereby changes the state of the output stage. at this time, a count signal from Kansl 18 provided x «ri.rd, and the output has already been switched from output channel 46 to output channel 44, the appearance of a pressure pulse in input channel 14 erases the memory of the splitting step and the flow of the medium switches from channel 28 to channel 26 ' so that, in turn, the output of output stage 12 is switched from output channel 44 to output channel 45. If However, if the output were already present in channel 46, which means a flow of medium in channel 26, the provision of a pressure pulse in input channel 14 does not affect output stage 12, since the nestling of the medium on the wall does not affect it will »If at this point ·. If no counting signal is present in the counting channel 18, then applying a pressure pulse to the channel 14 causes a control signal to appear in the channel 22, which in turn resulted in the output stage 12 appearing in the channel 46 "Provided there is medium under Brück in channel 42" It is now

under VoratiSBetKuiig anir Sibromuiaag Im Earn *.!

the output of the output stage can be adjusted by only one impulse is provided on the correct input keypad of the filling stage 10 if there is a counting signal in the input channel is present or not.

The symmetry of the device results in that described Functioning in the same way for the output in one of channels 4-4- and ^ 6 iind a control flow in one of the Input channels 14 and 16 applies accordingly in the same way.

Since the split level 10 must be equipped with a memory nrnß, is the provision of additional control devices for Change the state of the output stage 12 ° n this output stage not practical as the memory of the split level there cannot be influenced. These control devices would therefore have to be upstream of the output stage 12, ie. at the split 10 be located.

All recognizable in the description and shown in the drawings details are for the invention of Meaning.

009813/1019

BAD ORiGlNAt

Claims (3)

PATENT CLAIMS 1. Symmetrical and resettable Fluidi c -FlipTFlop with a first stage with first forked channels for receiving a first medium flow, a control device to selectively provide a medium control signal to deflect 'the first medium flow, so that this can be in one of the forked first Kanal.eintritt, with a second stage, which has a medium interaction zone and second, bifurcated channels to receive a second medium flow, wherein the first channels are fluidly connected to 6 ^α * medium interaction zone of the second stage in order to selectively the second medium flow in one of the to allow bifurcated second channels to enter, characterized in that dr.H a third channel device (22, 24) in itself with the control device (14, Ί6) intersecting relationship provided ± ε ± and the ^ e channel device outlet openings in flow connection with the Media interaction zone (40), do a pressure differential over ■ - To relinquish the medium exchange active zone (40) and to press this dead pressure difference in the first median ρε tr om, so that the pressed pressure differential in the local medium flow creates a tendency into one of the bifurcated first channels (26, 28) in the absence of a medium signal ?> nd ^Q c "control means (14, 16) engage, and that the drit ⁴ -" e ^ naleinrichtung (22, 24) in the absence of the first Mediumrtrn ^ it can receive a media signal from the control means (.14, Ίβ) and that this "Sign ?! is directed towards the second lower part, in order to allow the second stream of medium to enter a forked second channel (4Λ--, 46). 009813/1079 2. Vorrichtting n ^ ch claim 1, characterized in that a storage device (25, 2?) in the first key device (26, 28) is provided to the first medium flow in a to maintain the forked first channels (26, 28) in the absence of a medium signal on the control device (14-, 16). 3. Apparatus according to claim 1 or 2, characterized in that an Isolstionseinrichtung (JOj 32; 48, 50) in connection with the first and the second fan device (26, 28; 44, 46) is used. 0 9813/1 -0 7.9 " _BÄD