FI98624B - Fuel distribution system - Google Patents

Description

98624

Fuel distribution system

The invention generally relates to distribution systems for dispensing at least high octane fuel, low octane fuel and a mixture of the two to a user.

Certain service stations include fuel distribution equipment for the distribution of at least three grades of fuel or octane, one of which may be a blend * 10 Typically, a blending dispenser includes a high-octane fuel, a low-octane fuel, and an alternative distribution of the two mixtures. Blended fuel is a solid mixture that is predetermined at the fuel plant in which the fuel dispenser is located. Such dispensers typically incorporate orifice flow technology, i.e., fixed-sized orifices typically control the blend ratio of high and rotten Laoctane fuels to obtain intermediate or octane fuel. If it is desired to change this intermediate fuel blend ratio at the site, converting the orifices is time consuming and cumbersome. To eliminate this problem, recent fuel distribution *; The systems have been developed to use pro- • · batch flow valves with electronic back-up · * · instead of orifices. In such fuel dispensers, the controller is programmed at the location to provide the desired solid mixture of high and low octane fuels on the fuel dispenser island.

• · · * * Such multi-product, fixed-ratio fuel dispensers with full coil quality levels would typically require a total of four:: a flow meter for each group of three pipes, where one created. a fuel gauge is required to monitor the fuel consumption for both low and high octane *! * 35 fuels and two flow meters are required • · • · · • · · · · · · ··· »· • · • · 2

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in an intermediate fuel blending operation. One known organization for distributing high and low octane fuels as well as the third fixed blended fuel is Gilbarco (MPD Fixed BlenderN Product Line 5 (manufactured by Gilbarco Inc., Greenboro, N.C.)) This system uses orifice flow technology and dispenses blended fuel.

Another known system for providing a spot-fuelable blended fuel for high and low octane fuels, in combination with both low and high octane fuel distribution, is the "Wayne Series 590 Fixed-Ratio Blending Dispenser" (manufactured by Wayne of Desser Industries, Inc.). Pump Division, Salisbury, Md.). This system includes stepper motor-15 driven valves to control the flow rates of the fuels to be distributed, as well as to adjust the blend ratio between the high and low octane fuels to mix the two to form an intermediate quality fuel.

Many other fuel dispensers for mixing two or more fuels are known in the art of the present invention. One example is Kronen et al.

* *; U.S. Patent 3,847,302, which discloses the control of a plurality of solenoid-operated valves to dispense a desired fuel mixture or quality level. The Kronen patent uses • · preset valve openings to provide e ·. a predetermined intermediate mixture. The valves are preset «··· * using needle-operated secondary valves within one • · · solenoid valve in each of the two solenoid valve pairs included in the digital valve arrangement. A related system is described in * Kronen et al., U.S. Patent 3,895,738.

· * ·. U.S. Patent 4,265,266 to Kierbow et al. Discloses a system for mixing at least two products together.

• · * Γ 35 The system includes proportional flow control valves and closed loop control for at least two of the two products to be mixed. • * * · * • · · •· · ··· • · • · ··· 3 98624. Microprocessor control is used to set the orifices of the proportional flow control valves, in turn, to control the hydraulic motors to control the pumps when pumping liquids that are being mixed with dry materials in a given example.

U.S. Patent No. 4,440,314 to Vetter et al. Discloses a method and apparatus for mixing at least one liquid component, such as a hardener, with a base coat. The control of the liquids to be mixed, which forms a closed loop, is maintained by adjusting the flow rate of one liquid so as to ensure that the desired mixing is maintained. The speed of the pumps pumping the liquids is controlled by 15 feedback from the speedometers associated with the pump to generate signals that indicate the flow rate of the liquid being pumped at a given time.

U.S. Patent No. 4,252,253 to Shannon discloses a beverage dispenser 20 that includes a microprocessor for controlling the pressurization and operation of pumps to dispense a desired mixture of products to obtain a particular refreshment.

U.S. Patent 4,083,473 to Goodwin et al. a liquid mixing system for forming three fuel grades, 25 gasoline in a given example, comprising high and low octane grades of fuel and (.the two solid blend portions. The mixing control valve 9 is operated with the first solenoid in one extreme position to dispense high quality fuel, the second solenoid to the opposite extreme position for dispensing low quality fuel, and is also used:: with an electromagnetic switch to rotate this mechanical control valve to a predetermined intermediate position ··, to dispense intermediate quality fuel with a fixed * '35 mixture ratio Closed loop control system • · • · • · · ·· «* · · 4 98624 monitors flowmeters associated with high and low octane fuel to maintain these two desired intermediate grades.

U.S. Patent 4,043,300 to Lombard * discloses 5 devices and associated control electronics for comparing air and fuel flow rates to an engine to control either the air or fuel flow rate valve setting so as to maintain the desired air and fuel mixture when mixing the two.

U.S. Patent No. 3,717,283 to Gulbrandsen discloses a fuel mixing device including a low octane fuel dispenser for dispensing low octane fuel from a storage tank, a good quality 15 or high octane fuel dispenser for dispensing high quality octane fuel from another storage tank, and an intermediate quality low octane fuel mixture. The device includes two solenoid-operated valves that allow high octane fuel to be fed to the mixing point to be mixed with low octane fuel * to supply intermediate fuel to the dispenser. whenever the user selects such a fuel grade.

25 The low-octane fuel is delivered separately to the low-octane dispenser from the • z storage tank for such fuel. Solenoid-operated valves are selectively activated to either allow only high octane. »Supplying fuel to a high-octane dispenser or to allow high-octane fuel to be fed to a mixing point for mixing with low-octane:‘ fuel being pumped in intermediate quality. through its dispenser to produce intermediate quality fuel at a given time.

U.S. Patent No. 3,410,293 to Ernyei discloses a system that divides a container of first and second products into a container 3 to form a mixture of products as they are mixed within the container. Digital flow meters are connected in series with the supply line of each product to monitor the amount of 5 products associated with the tank. The control circuit monitors the output of the respective flow meters to control a control valve 14 connected in series with the second product line to adjust the flow rate of this product so as to maintain the desired mixture of the two products within the container.

Gross U.S. Patent No. 3,229,077 discloses a system similar to U.S. Patent No. 3,410,293 for monitoring the flow rate of two fluids and controlling the flow rate of a second fluid by controlling a servo valve in series with the two fluid product lines to maintain these two fluids. the desired mixture of fluid.

The present invention seeks to provide an improved multi-product mixing system for fuel dispensers.

According to the present invention, there is provided a fuel distribution system comprising: * *: a plurality of fuel flow control means for supplying different grades of fuel at a known rate, and a plurality of fuel distribution lines, each • ·. related to a specific fuel quality. The invention is characterized in that it further comprises connecting means comprising • a plurality of inputs, each of which receives 30 correspondingly different types of fuel from the corresponding combustion. ·: * ·· from the flow control means, and several outlets, e ··: each connected to a corresponding fuel distribution •• 1 *. line, and at least one of which is capable of forming a mixture of fuel received from at least two fuel flow control means; and • e; several selector valves, each of which controls the flow of fuel from the corresponding outlet of the coupling means.

Using the present invention, it is possible to reduce the number of flow meters required in a multi-product dispenser for dispensing at least two fuels, each of a certain quality, and a third fuel, which is a mixture of the two.

Various embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which like headings are designated by the same reference numerals and in which: Figure 1 is a block diagram showing an embodiment of the invention.

Fig. 2 is a hydraulic / coupling diagram detailing the embodiment of Fig. 1 adapted for use in a fixed mixing dispenser having three dispensing hoses on each side of the dispenser for dispensing three different octane levels of fuel on each side, respectively.

Fig. 3 is a block diagram showing the locations of the pump drive switches in the typical fuel dispenser of Fig. 2.

* · Figure 4 is a pump * ♦. * Of an embodiment of the invention. block diagram of the operating switch circuit.

Figure 5 is a block diagram of yet another embodiment of the invention.

···. Fig. 6 shows a hydraulic / coupling diagram of the embodiment of Fig. 5 adapted for use as an on-site programmable fixed agitator device, wherein the pump handles are positioned substantially as shown in the embodiment of Fig. 3.

} · Fig. 7 is an isometric view showing oi- · * ·. an embodiment of the manifold of the invention used in the embodiment of Figures 5 and 6.

♦ ”* 35 Fig. 8 is an isometric view of the manifold of Fig. 7, when the manifold is rotated 180 ° and rotated 90 ° · * · 7 98624 clockwise with respect to Fig. 7.

Referring to Figure 1, the fuel dispenser includes low octane fuel source 1 and high octane fuel source 3 for fuel delivery under pressure through source-associated fuel pumps (not shown) to proportional flow control valves 5 and 7, respectively. Flowmeters 9 31 2 3 1? is connected in series with proportionasivar.t ^ iHien 5 and 7, respectively. Output port rr of the flow meter 9 10, connected to the inlet ports of both the selection solenoid valve 13 and the non-return valve 15. Similarly, the outlet port of the flow meter is connected to both the inlet port of the selector valve 17 and the inlet port of the non-return valve 19. The outlet ports of the non-return valves 15 and 19 15 are connected together to the inlet port of the third selection valve 21. The outlet ports of the relief valves 13, 17 and 21 are connected to one end of the low octane fuel distribution line 23, the high octane fuel distribution line 25 and the mixed or intermediate octane 20 fuel distribution line 27, respectively. The other ends of the fuel distribution lines 23, 25 and 27 are each connected to a distribution nozzle 41, as shown.

• 1. In this example, selector valves 13, 17 and 21 • e #. ·. are flow control solenoid valves, which in the constructed **. · 25 prototype were implemented with AS CO 222-763 type • ·. valves manufactured by the Automatic Switch Company,

Florham Park, New Jersey. Proportional flow control valves 5 and 7 and flow meters 9 and 11 in this example are the same as those set forth in U.S. Patent No. 4,876,653 to McSpadden et al., Which is •. · Issued October 24, 1989. In addition, the controller 29 is substantially a sauna than the controller of U.S. Patent 4,876,653, but the controller 29 of the present invention is programmed to provide the operation and functions described below.

I · *; 1 '35 U.S. Pat. No. 4,876,653 all teachings are incorporated herein by reference, which teachings include flow meters. 9 and 11 for controlling the proportional valves 5 and 7 to maintain a certain mixture of low octane fuel 1 and high octane fuel 3.

The operation of the embodiment of Figure 1 will now be described. The user must first select a particular octane level of the desired fuel by lifting the appropriate nozzle 41 from the sheath 440 (see Figure 4) and activating switch 443 10 to close, either manually or automatically, and signaling to controller 29 that one of the three fuel octane levels will be split. Note that the structure of the "pump drive switch" will be described in more detail below with reference to Figure 4. If low-15 octane fuel is selected, controller 29 responds by turning on selector valve 13 and controlling proportional valve 5 by monitoring flow meter 9 output signals to distribute the desired amount of low octane fuel 23 and through a nozzle 41 associated therewith. Once a particular octane level of fuel has been selected by removing the nozzle 41 from its associated sheath 440, those selector valves 13, 17, 21 and • 1; proportional valves 5 and 7 not related ·· ·, ·. to be dispensed fuel, stored in an inactive ** .: 25 state, even if one of the other nozzles 41 happens to be removed from the associated sheath 440 when dispensing. the second octane level of the fuel during a given distribution cycle e ··· • ·.

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In the same way as when dispensing low octane fuel 30, if at the beginning of a given dispensing cycle the nozzle 41, 17 • · * ,.! to distribute the desired amount of high octane fuel 3 by observing the output signals of the flow meter 11.

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If a fuel intermediate octane level or intermediate quality is desired, the nozzle 41 associated with the blended fuel line 27 is removed from its housing 440. The controller 29 responds by turning on two proportional flow valves 5 and 7 and a selector valve 21. Low octane fuel 1 flows through a check valve 15 3 flows through the non-return valve 19 to the selector valve 21. The low and high octane fuels 1, 3 are mixed 10 in the flow from the non-return valves 15 and 19 and via the selector valve 21, respectively, from the mixed fuel line or hose 27 through the associated nozzle 41. The controller 29 is programmed to operate proportional flow valves 5 and 7 so as to maintain a predetermined mixture of low octane fuel 1 and high octane fuel 3 to provide a certain intermediate grade or octane level of fuel, as described.

In Figure 2, the embodiment of Figure 1 is shown as a two-fold hydraulic diagram for distributing one of the three fuel octane levels at any time on either side of the fuel dispenser 30 shown in Figure 3. As shown, the fuel. the dispenser 30 has an "A" page and a "B 2" page

‘*. · 25 The three pump operating switches (see Figure 4) are marked NA1N

»A. and “B1” for low octane fuel, NA2 ”and“ B2 ”for blended or intermediate grade fuel» »·» | t <* and NA3N and “B3” for high octane fuel.

• · * Note that the fuel filters 31 are shown connected in series between the low octane fuel source 1 and e: * ·· between the proportional flow meters 5A1 and 5B1, respectively, and between the high octane fuel source 3 and the proportional flow valves 7A3 and 7B3, respectively.

»·

The operation t of the fuel dispenser structure of Fig. 2: “* 35 is substantially the same on each side of the dispenser t> • aa • · a *« e a aaa a a »a aaa 10 98624 30 (see Fig. 3) as in the dispenser of Fig. 1. Selection valves 13AI and 13B1 relate to the distribution of low octane fuel, 17Λ3 and 17B3 to the distribution of high octane fuel, and 21A2 and 21B2 to the distribution of a mixture of ataoctane fuel 5 and high octane fuel 3. It is also a disadvantage that a certain mixture of aatoctane octane fuel 1 and high octane fuel 3 for the distribution of the combusted intermediate quality via the distribution or fuel line 27 is in this eslaerk at the location from program-10. That is, the controller 29 is programmable in its fuel to distribute the predetermined fuel mixture to the user of the slip saw.

During operation of the dispenser of Figure 2, the controller 29 is programmed to respond to the appropriate double signals 15 by turning on valves 5Λ1 and 13A1 for dispensing low octane fuel through fuel line 23A1; turn on valves 5B1 and 13B1 for dispensing low octane fuel through fuel line 23B1; turning on valves 7A3 and 17A3 for dispensing high octane 20 fuel through fuel line 25A3; turning on valves 7B3 and 17B3 for distributing high octane fuel through fuel line 25B3; by switching on valves 5B1, 7B3 and 21B2 mixed ···:. *. for fuel distribution via fuel line 27B2; ....: 25 And turn on valves 5A1, 7A3 and 21A2 for mixed fuel distribution in the fuel line 7K2. ta. The controller 29 can be programmed at the location to respond to signals from meters 9A1, 9B1, 11A3 and 11B3 by controlling the proportional valves 5Ai, 5B1, 7A3 30 and 7B3 to distribute the desired amount of high, low or mixed. : intermediate or octane fuel from the associated ·. · nozzle 41 on each side "A" or NB "distribution device ·· * ·. 30 in this example.

• ·

Referring to Figures 3 and 4, the pump operating switches * 1 * 35 "A1" to "A3" and "B1" to "B3" are identical in construction. • * • · · • · · · · · · • • · · · 11,98624 wooden wood drive switches 400, as shown in Figure 4. The reference symbols shown in Figure 4 are identical to those of McSpadden yn. U.S. Patent No. 4,876,653 to reference eluents. Each wooden switch structure 400 includes a nozzle support 440 having a wooden handle member 442 that includes a SPST (single pole-single shift) switch 443 operated by an associated wooden handle lever 42. When the nozzle 41 is pushed into the associated sheath 440, the wooden handle 442 moves counterclockwise, which in turn causes the SPST switch 443 to open, so that the end of performance is signaled via the signal line 444. When a new embodiment is initiated, the associated nozzle 41 of a desired combustion · octane agent jakaniseksi removed tupostaan 440. 15 Puapun handle 442 must aanuaalisesti rotate the direction of arrow 446 direction (in this case, nyötäpäivään) SPST switch-Ae 443 sulkeaiseksi its input + 12,0V DC voltage signal (+ Ve in this preamble) along signal line 444. At this time, the signal is connected via signal line 444 to the level transmitter-network 402, and from there to the controller 29.

Specifically, the level shifter network 402 includes a isolation resistor 446, one end of which is connected to the signal line 444 and the other end of which is connected to the connection resistor 448 and the input terminal of the CMOS buffer level shifter. In this preselection, + v volts are connected to the level shifter for the voltage of the 450 + 12V DC signal to the logic level + 5VDC, here. aerkissä. As shown in Fig. 4, in connection with the wood handle A1, the signal line 452 is connected from the output of the level shifter 30 402 (the output of the level shifter 450) to the controller • When the controller 29 receives a signal indicating the adult operation, the controller 29 responds by switching on the selector valve. 13A1 and proportional • ·. ***. a valve 5A1 for distributing the octane octane fuel 35 via the fuel line 23A, as shown in the embodiment of Fig. 2 for 12 nights. Otherwise, the operation of the dispensing cycle is substantially the same as in U.S. Patent No. 4,876,653 to McSpadden et al. As shown in Figure 4, each pump handle or pump handle station A1-A3 and B1-B3 5 operate in substantially the same manner as pump handle A1. . The associated start signals are generated on signal lines 452-457 for the pump handle A1-A3 and B1-B3, respectively.

In the embodiment of Figure 1 of the invention, the associated fuel distributor 10 is fixedly mounted at the factory with respect to the placement of low, high, intermediate and octane levels of fuel associated with the fuel lines or fuel hoses 23, 25 and 27, respectively. One programming with the salary of the controller 29 can only be done 15 by changing the mixture ratio of the low octane fuel 1 and the high octane fuel 3 distributed through the fuel hose 27. As will be described, in an alternative embodiment of the invention, the controller 29 is programmable at the location to selectively mark which of the fuel lines or fuel hoses 23, 25 and 27 are used to distribute low, high or intermediate octane levels or grades of fuel in addition to being feasible. octane level programming for fuel ··· • intermediate quality by adjusting the mixture ratio between low and ·· * · ....: 25 high octane fuels 1 and 3.

In an alternative embodiment of the invention, the basic structure of Figure 5 is substantially the same as those of Figure 1, but with the manifold 33 added. Note that, up to the practical limit, the manifold 33 may be provided 30 with more than three outlet ports for dispensing fuel into more than three selector valves V, bricks 13, 17 and 21 larger than selector valves Sn. up to the number shown. However, for the sake of illustration, this alternative embodiment will be: *** 35 output with a manifold having three output ports • · • · · • · · ♦ · · · ·· ♦ φ · • · ·· · 13 98624 for connection to selector valves 13, 17 and 21 respectively. Also, the number of series-connected non-return valves, flow meters, flow control valves and sources of different fuel grades can be increased to Cn, Mc, Vn and Fn, respectively, within practical limits. The number of inlet ports of the manifold 33 would also be increased to some number n, where "n" is an integer.

In an alternative embodiment, the non-return valves 15 and 19 receive low octane fuel 1 and high octane fuel 3, respectively, at their non-return ports. The outlet ports of the non-return valves 15 and 19 are connected to the inlet ports of the manifold 33. As will be described in more detail below, the manifold included in the preferred embodiment of the invention is a relatively compact, minimal volume structure to reduce fission of split fuel quality at the beginning of the distribution cycle as a result of a second octane fuel residue within the manifold 20 from the last completion. The controller 29 is in place programmable to select one of the selection valves 13, 17 and 21 to be engaged with the proportional valve 5 to distribute the low octane fuel to the associated fuel line or hose 23, 25, 27, respectively. Similarly, the controller 29 is in place programmable to select which of the selector valves 13, 17 and 21 is switched on in combination with the proportional valve 7 to distribute the high octane fuel to one of the associated fuel hoses 23, 25, 27. Finally, the controller 29 is in place programmable for its to select which of the selection valves: * * bricks 13, 17 and 21 is switched on in combination with each of the proportional valves 5 and 7 low and high. to distribute the programmed mixture of keaoctane fuels 1 and 3 · [35] to the associated fuel line 23, 25 and • · • *> · ♦ 98624 14 27. In this way, the fuel station is given the flexibility to program the controller 29 to select which of the fuel lines 23, 25 and 27 are associated with either low octane fuel 1, high octane fuel 3, or a mixture of the two to provide intermediate fuel quality.

An alternative embodiment of the invention in Figure 5 may be doubled, as shown in Figure 6, to provide its functions in the dispenser 30 shown in Figure 3. As shown, non-return valves 35-38 are included to prevent fuel from being distributed to manifolds 40 and 42 (both substantially similar). than manifolds 33), returning from manifolds 40, 42 via associated feed lines 44-4715. Comparing the alternative embodiment of Figure 6 with the embodiment of Figure 2, this alternative embodiment additionally includes two manifolds 40 and 42 and a different arrangement for the associated check valves 35-38. As shown, in the example 20 illustrated herein, low octane fuel is passed through supply line 44 through check valve 35 to one inlet port of manifold 40 and high octane fuel is distributed through supply line 45 through check valve 36 to other inlet port of manifold 40. The outlet ports of the manifold 40 of the manifold 40 are connected to the inlet ports of the valves 13A1, 21A2 and 17A3, respectively. Similarly, low octane fuel is distributed through a supply line 46 through a check valve 37 to one inlet port of the manifold * · · * 42 and high octane fuel 30 is distributed through a supply line 47 through a check valve 38 »1 '" to the other inlet port of the manifold 42. The outlet ports of the manifold * * 42 are connected to the inlet ports of the selection valves 17B3, 21B2 and 13B1. The controller 29 is programmable at the location so that the individual selection valve 13A1, 21A2 and 17A3 can be selected. · • · 1 • · · · · 15 98624 separately switched on simultaneously with proportionasi1 valves 5A1 to supply low octane fuel to the associated distribution hose 23AI, 27A2 and 25A3; (2) which of the selection valves 13A1, 21A2 and 5 17A3 is switched on as a combination 7A3 for the distribution of high octane fuel, and ( 3) which of the remaining three valves 13Ai, 21A2 and 17A3 is turned on in combination with proportionasi1 valves 5A1 and 7A3 to provide intermediate fuel quality and -10 formed of low and high octane fuels 1 and 3 initially blended and in the piping 40 for the user for division, as a mixture. Similarly, the controller 29 is programmed to select one of the selection valves 17B3, 21B2 and 13B1 associated with the manifold 42 to be turned on in combination with the proportional valve 5B1 to distribute the low octane fuel; which valve is turned on in combination with the proportional valve 7B3 to distribute the high octane fuel; and which valve is turned on in combination with the proportional valves 5B1 and 7B3 to distribute or distribute the intermediate quality of fuel to one of the fuel sub-lines or hoses 25B3, 27B2.1 and 23B1. Accordingly, an alternative embodiment ··· • gives the site manager greater flexibility ··· · ....: 25 in the programming of the controller 29 distributes fuel having a certain octane level through a particular distribution hose when multiple • »distribution hoses are located in each of the fuel distribution devices. .. to the model side, as previously described here! :: * in the example given. As also indicated previously, manifolds 40 and 42 are forming a larger amount of fuel mixtures between high and low octane grades, as would be apparent to one of ordinary skill in the art.

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As previously stated, in a preferred embodiment of the invention, the manifold 33 is designed to be as compact as possible and as small in volume as possible. Figures 7 and 8 illustrate such 5 manifolds 33 used in a prototype of this alternative embodiment. The figures shown for manifold 33 assume for clarity that port 49 is the inlet port for low octane fuel, port 51 is the inlet port for high-10 octane fuel, and ports 53, 55, and 57 are outlet ports. For simplicity, the mounting hole and / or mounting pins are not shown. Note that the structure of the manifold 33 is made compact by a centrally located distribution chamber 59 which forms very short flow channels between any two ports. In this way, the pollution of the fuel distributed in a given section from the fuel remaining in the previous distribution section is substantially reduced. The manifold 33, as applied to use in the 20 prototypes, was approximately 14 cm long and 6.25 cm square at each end, with flanges associated with each port being approximately 5.5 cm square.

Many other advantages and modifications of embodiments of the invention; These variations or alternative embodiments are intended to be within the spirit and scope of the appended claims. Certain of these variations are mentioned in the above description of the invention. Also, with reference to Figure 6 above, valves 13A1 and 17A3 can be programmed to open with different mixing combinations of flow valves 5A1 and 7A3 in the same manner as previously described for line 27A2 and valve 21A2. conjunction.

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Claims (14)

1. A fuel distribution system including a plurality of means (5, 9; 7, 11) for controlling the fuel scattering for specific feeding of various types. well-known types of wells, and a plurality of wells distribution lines (23, 25, 27), each of which is associated with a given well-read type, the system further being characterized by the further inclusion of connecting means, thus including several inputs. each of which receives its own fuel reading from a respective fuel control control means, having multiple outputs, each of which is connected to a respective fuel distribution line, and of which Atainstone one (27) can provide a mixture of the fuel so obtained from Atainstone two means for controlling the fuel cleaning; and a plurality of selection valves (13, 17, 21), each of which controls the fuel flow from the respective output of the connector. 2. A fuel distribution system according to claim 1, characterized in that each fuel distribution distribution line includes a hose so connected to an auxiliary unit (41). • · 3. A fuel distribution system according to claims 1a · ... 'or 2 for distributing low and high quality fuel, a mixed co-operation thereof, which is a medium quality, characterized in that during operation ** each of the valves (13, 17, 21) responds: to a single choice choice to open and facilitate *. fuel radiation enjoyment; A plurality of coupling actuators (443) connecting to individual valves in a group of several nozzles (41) generate individual pump handle signals indicating the a given nozzle (41) for distributing the associated fuel type or combination; a first (5, 7) and second (9, 11) fuel flow control means react each to individual fuel distribution signals for a given distribution period for distributing either said low-grade fuel or said high-grade fuel or a desired mixture thereof to the respective input ports of the connection means, and a control means (29) can be programmed to respond to said individual pump handle signals by generating a combination of certain wiring and fuel distribution signals for distributing such fuel which is pre-programmed to connect to a given nozzle (41) for for distribution of fuel. Fuel distribution system according to claim 3, characterized in that each of said means (5, 7; 7, 11) for controlling fuel flow 20 comprises: a flow control valve (5, 7) having an input port for receiving a respective fuel type and one: output port, which is coupled to the input port of a respective selection valve (13, 17, 21), and that the first flow control valve's flow control valve (5) (the first flow control valve) responds to a »first fuel distribution signal by opening for * * to enable low-grade fuel to flow into a first valve (13); The flow control control flow control of the second flow control means (7) (the second flow control valve) responds to a second fuel distribution signal by opening itself to »·». enable high-quality fuel to flow into a second *** valve (17); The first and second flow control valves (5, 7) respond to a third fuel distribution signal to enable respective high and low grade fuel types to flow to a third valve (21) for distribution 5. of a mixture of these two from a nozzle (41) connected thereto; and said control means (29) responds (a) to a handle signal from the pump of the low type, and generates first wire and fuel distribution signals to open said first selection valve (13) and first flow control valve (5); (b) on a handle signal from the pump of the high type to generate other wire and fuel distribution signals to open the second selection valve (17) and the second flow control valve (7); and (c) on a handle signal from the intermediate quality pump to generate third wire and fuel distribution signals to open said third choke valve (21), first flow control valve (5) and second flow control valve (7). 5. Fuel distribution system according to claim 4, characterized in that said first and second flow control valves (5, 7) are each proportional *: flow control valves, and that said first and second * · means (5, 9; 7, 11) for controlling media flow further comprises a first and second fuel failure meters (9, 11), which are connected in series with the first travel. the second flow control valve, wherein the flow, control means (5, 9; 7, 11) respond to flow rate signals from the first (9) and second (11) flow meters and control the first (5) and second (7) current - • The function of the control valve according to the principle of the • closed loop. . Fuel distribution system according to any one of claims 3-5, characterized in that said connecting means comprises distribution pipes (33) with a first input port for receiving low-grade fuel, a second input port for receiving high-quality fuel, etc. -out output ports, which are separately connected to respective input ports in said plurality of valves (13, 17, 5 21), and a fuel chamber common to the first and second input ports and said plurality of output ports. Fuel distribution system according to claim 6, characterized in that it further comprises a first check valve (15) between the first input port of the distribution pipes and the output port of a first low-class fuel control means, and a second check valve (19) between the second output port of the distribution pipes and an output port. port in a second means (7, 11) for controlling the fuel flow of the high-grade fuel, the first and second check valves (15, 19) preventing fuel flow from the distribution pipes back to the fuel flow feed means. Fuel distribution system according to any of claims 3-7, characterized in that it further comprises: ·… · a first (23A1), a second (25A2) and a third (27A3): pairs of hoses and nozzles on one the side of the housing for ·: * ·: said distribution system; A fourth (23B1), fifth (25B2) and sixth (27B3) pairs of hoses and nozzles on the opposite side of. said house; • · ♦ a first connection means with a first and second input port for receiving low-class and high-class fuel, respectively, and a first, second and third output port connected to individual input ports in a single input port. first · * · 1: (13A2), second (17A2) and third (21A3) valves, respectively ♦ · 2. to supply them with the same fuel type for a given distribution period; «« · ♦ · ♦ «« · · · • ♦ • · 2 ·· «27 98624 a second connection means with a first and second input ports for receiving low- and high-grade fuel as well as a first, second and third output ports connected to the individual input ports in a fourth (13B1), fifth (17B2) and giant (21B3) valves to supply them with the same fuel type for a given distribution period; and said control means (29) further comprises on-site programmable means for selecting fuel types for distribution by means of each of said six nozzles. Fuel distribution system according to any of claims 3-8, characterized in that it comprises: a site programmable means (29) for designing each of said hose nozzle assemblies 15 to distribute a given fuel type, comprising a means for observing this selected nozzle for generating a roll signal activating the associated valve, and a means for distributing a suitable fuel type (s) to a distribution pipe means in the required volume to complete a given distribution period. 10. Fuel distribution system according to claim 9, characterized in that said on-site programmable means (29) further comprise a microprocessor ... ·; Means responsive to signals from said observing means and to flow rate signals by generating appropriate selection signals and using said flow control means to distribute a desired amount of the programmed fuel type connecting to a selected nozzle, according to the principle of closed loop for a given distribution period. · * · *: 11. Fuel distribution system according to claim 4 • ·. * · *. or 8, characterized in that said connecting means comprises a first non-return valve (15) between the input ports of the first and third valves and a second check valve (19) between the input ports of the second and third valve (21) to prevent fuel in the input port of the third valve from flowing back toward the output port of the first and second flow control valves (5, 7), the third valve ( 21) is provided between the first and second non-return valves. Fuel distribution system according to any of the preceding claims, characterized in that each fuel flow control valve (5, 7) comprises a proportional flow valve. Fuel distribution system according to any of claims 3 - 12, characterized in that the control means (29) comprises a microprocessor for observing and controlling the function of the fuel distribution system. Fuel distribution system according to any of the preceding claims, characterized in that each valve comprises a solenoid driven valve (13, 17, 20 21). ··· • ♦ • · · · »· t ··» • · · · ··· »· · · · · · · · · · · · · · · · · • · • · · »· t: ·« · • · · · · · · · · ···