DE1808527U - DEVICE FOR LIMITING THE FULL LOAD AMOUNT OF FUEL WHEN USING DIFFERENT FUELS FOR AN INJECTION ENGINE, IN PARTICULAR A DIESEL ENGINE. - Google Patents

Description

p Λ Λ 46b ² , 14. 1 SOS 527th. Machine factory

Augsburg-Nuremberg A.G .. Nuremberg. | Set-up mm B-size of the full load

V amount of fuel when using different

* "Thin fuels for an injection; -

internal combustion engine. especially one

Masehinenfabrik Augsburg-Nürnberg AG diesel engine. 5.12.57. μ 2 6 76 i. (T. ^

Nuremberg

Nuremberg, February 15, 1960

Device for limiting the full load fuel quantity when using different types of fuel for a single-injection internal combustion engine, in particular one

Diesel engine

The innovation relates to a device for limiting the full capacity fuel amount when using different types of fuel for an internal combustion engine, in particular a diesel engine.

For Binspritzbrennkraftira ichinen, especially for diesel engines, there is often a requirement to use more than just one type of fuel, for example not just gas oil, but also petrol, etc. ». to be able to use. As is well known these fuels are different in terms of their physical and chemical properties, such as Petrol has a lower specific weight than gas oil, while in addition, the viscosity compared to gas oil Gasoline is higher, in the interest of a power output that is the same for all fuels used, then the full load; Injection quantity adapted to the particular physical characteristics of the fuel used, d. H. newly dosed will. i

46b'-, 14. 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg A.G .. Nuremberg. | Device for limiting the full load fuel quantity when using different types of fuel for an internal combustion engine, especially a diesel engine. 5.12.57. M 26761. (T. 17;

For example, to maintain the full rental of a so-called multi-fuel engine, for example when switching from gas oil operation to Benain operation, an additional filling is necessary due to the lower saving weight compared to gas oil at full load.

For such a full-load change in filling iot the change of the full load sole position for the filling lever of the injection pump the most suitable of the multi-fuel engine. Thus, a design is known in which a movable attachment is arranged on the envelope lever, which can be swiveled in when necessary placed on or through the base of the filling lever Swiveling out is lifted off again. As a result, the end stop of this lever is then shortened according to the thickness of the stop adapted to the particular fuel used or lengthened, thus changing the injection quantity accordingly at full load. But since this swivel attachment in its respective position (division of activity or open position) must be particularly held, a lock, for example a screw in both positions is necessary. This has a particular effect on trucks very unfavorable; because to adjust this stop it is necessary to raise the mostly very heavy bonnet. In addition, for structural reasons, in most cases it cannot be avoided that the full load is then applied to one The place of the engine is very difficult to access and the driver can only reach this point in the crawling position. Therefore it must be expected that when changing fuel for reasons of convenience it is necessary to adjust this

46b ² 14. 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg AG. Nuremberg. | Device for limiting the full load amount of fuel when using different types of fuel for a single-injection internal combustion engine. especially a diesel engine. 5. 12. 57. M 26 761. (T. 1 /; line 1) -

Stroke is omitted, which for example in the transition from petrol operation to gas oil operation as a result of the previously set Excessive filling leads to a very damaging, excessive output that was not intended in the construction, while in the opposite case the full power of the engine is unnecessarily reduced.

The task of the innovation is to avoid these parts and also to replace the setting that was previously carried out by hand of the full throttle stop this will now be carried out automatically.

In solving this task, the adjustment of the full load stop is required taking advantage of the physical characteristics of the individual fuels, preferably taking advantage of the difference between their specific weights and / or the viscosity of the fuel used in each case.

According to the innovation, the adjusting device is a solid body immersed in the fuel, for example a float provided, the immersion depth of which changes when the specific Weight of the fuel, i.e. when using a different type of fuel, also changes. It will then be the Lifting movements of the swimmer triggered by the buoyancy effect using a mechanical device, for example a linkage, or using a hydraulic, in this case preferably designed as a force booster

4fcb- 14 1 SOS 527. Machine works Augsburg-Nürnberg A.G .. Nürnberg J Facility: to limit the amount of fuel used when using different types of fuel for one fuel: -

- i. - Internal combustion engine, especially one Diesel engine. 5. 12. 57. M 26761. (T. 1 ,: Line 1) -

lh. MRL135

Vorrichtimg or finally using contact-controlled he Belaie for setting the full dam position · There are just as many stops as fuel are used, with each announcement in its block on the physical characteristics of its Use of the intended fuel.

Another characteristic of the achievement of the goal »namely the automatic adjustment of the full load stabilization by means of the called soling tongues, taking advantage of the different specific weights of the individual types of fuel in that a closed fuel tank is provided, which is inclined in the direction of its horizontal axis For this purpose, this container is connected to the main fuel line via a flexible fuel inlet and outlet line and relieved by a counterweight. Duroh its connection to the fuel line, this closed container always has the same filling, so that when changing the Fuel, the pivoting is triggered exclusively by the difference in the specific weight of the two liquids is and so that the stop tongues can always be brought into their assigned active or free position. It is there It is essential to lay the counterweight for the container in such a way that it can only be removed from its respective end division when the specific liquid weight.

46b ² 14. 1 SOS 527. Machine factory Augsburg-Nürnberg AC. N «™ ^b « fc} Device for limiting the

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H. HRL 19t

Is it about the viscosity of a fuel for to use the adjustment of the Vollastaueschlage8, then caused by the leak fuel that flows through the guide gap the nozzle needle of the injection nozzle flows through it. In the case of petrol operation, the decrease is lower than that of Oaeöl Viscosity significantly more Leok fuel than at Gas oil operation. This leak fuel is now via a line into a cylinder with, for example, a spring-loaded piston, and in the discharge line of this cylinder a Orifice or nozzle arranged, so sioh builds up a pressure in the cylinder during petrol operation, through which as a result of the throttling of the fuel outflow the piston is moved downwards «At Gas oil operation, on the other hand, has much less ISaBe gas oil quantities time without pressure build-up through the nozzle or diaphragm to flow off, so that the piston does not move will.

Another possible device according to the invention is that the fuel is passed through a cylinder, whose piston is guided with play on the cylinder wall. If then the fuel τοη the lower side of the piston through the KoI-benspielraum through into the upper cylinder and sound there is diverted again, then this piston is due to the increase in fluid friction caused by the different viscosity or -reduction in each case more or less in the sighting of the flow of the fuel moves « However, it is a prerequisite here that a constant amount of fuel always flows through the cylinder

46b ² , 14. 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg AG. Nuremberg. | Device for limiting the full-load fuel quantity when using different types of fuel for an injection: - bicnnkraftmaschine. especially one - diesel engine. 5. 12. 57. M 26 761. (T. 17; -O- Z. 1).

otherwise piston movements would result, which in no fixed relationship., more to the Viscosity. These piston movements can then, in turn, be adjusted in one of the ways explained above the analog tongues are used

In the drawing, the invention is illustrated schematically in a few exemplary embodiments. Here shows «

Fig. 1 is a side view of the part of the injection pump,

on which the cover lever and its full load base are stored or arranged · In addition, here is a Longitudinal section through a float control to limit the full load position a shown,

Pig · 2 is a longitudinal section through a to limit the Full load stop tiltable fuel tank and its mechanical connection with a stop tongue,

, a longitudinal section through the same tiltable container as in Fig. 2, but here with electrical transmission of the inclination movements to the adjustment of the Stop tongue,

Pig. 4 shows a length of time through an on the leakage oil quantities

adjusting device responding to the injection nozzle ' for the attachments, and

46b- 14 ISOS 527. Maschinenfabrik Augsburg-Nürnberg A.C. Nuremberg | Direction: to limit the amount of fuel when using versAe-

- 7 - Such fuels for an injection

'b "sewing machine .insbc«, nderc e.ncn

Diesel engine. 5. 12. 5 /. M 26/61. (T. 1 /.

Line 1)

5 shows a longitudinal section through a device which responds to the different viscosity of the individual fuels.

As can be seen from Fig. 1, on the front part 1 of a fuel injection valve shown in side view, the filling lever 2 controlling the filling is rotatably mounted at 2a on the pump housing and is articulated to the foot lever operated by the driver via a linkage 3. The full load end position of the filling lever 2 is determined by a Yollastendansohlag 4, which is arranged in the pump housing by means of the thread 4a so that it can be screwed together. A cam 5 of the pulling lever 2 then hits this Sndansohlag 4 in the full load position. This Vollastendstellung of Süllungshebels can now by a ▼ or the end stop 4 _t set here in front view tongue 6 shown to be advanced, so that thereby the Pulleistag the injection pump due to the now shorter Sndsohwenkwegss

S- ■ ■ ■

of the filling lever is decreased \

The device through which the stop tongue 6 if necessary, so in a Weohsel of the fuel type and thus in a change in the specific weight of the fuel is to be placed on the full load end stop 4 (for 2> diesel oil operation) or lifted off again (for petrol operation), consists of a float 7 »between the walls 8 of a in this version is stored at the top of the closed fuel tank. This container is, as indicated by flow arrows is indicated, from the one leading to the fuel injection pump

46b ² 14 ISOS 527. Machine works

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Fuel durohflosseni he has a feed line for this purpose 10 and a discharge from 11 to · Am Sohwimmer 7, a linkage 12 which transmits the movements of the swimmer and which flows out of the container bottom at 13 is attached led out and then at its free end with the soleplate tongue 6 is firmly tied

For example, if the engine runs on diesel oil, that is, a If fuel is operated with a specific weight greater than that of gasoline, the position of the float is higher than when running through fuel with a low specific weight, for example gasoline. With diesel oil operation, the The float is in an upper position and thus also the stop tongue 6 in front of the full-load ditch 4 · In this case, the Full load injection quantity of pump 1 reduced. If, on the other hand, the engine is operated with petrol, the float 7 sinks as soon as the gasoline also flows through the fuel tank 9 and that any diesel oil that is still there is also washed out by the gasoline has been, due to the now lower downward lift. This then also removes the stop tongue from the full end stop 4 removed. This float or tongue position is in Fig.1 shown. The filling lever 2 can now with his Nooken 5 rest directly on the end stop 4, so there is a multiple fuel injection as line compensation at full load achieved for the engine.

In the embodiment according to Fig. 2 there is one except for the openings for the power st off feed line 15 and its derivative 16 on all sides

China factory

Diesel engine.

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closed container 17 is used, on which a two-armed lever rotatably mounted in the Pestpunkt 19, · ^q 1 is attached one end 18a while dae other free lever end carries balancing weight 20 18b '. This container 17 can thus be inclined at the pivot point 19, with fixed stops 21 being arranged to limit the inclination of the container upwards or downwards This container 17 is flowed through by the fuel leading to the injection pump and it is connected to the fuel supply and discharge line via an elastic connection, here consisting of a rubber hose 24 or 25, through which the tilting of the Container is made possible. The container bottom is connected to the stop tongue 6 at its free end 14 via an articulated rod 26.

In the upper position of the container 17 shown in Pig gasoline flows through it. The stop tongue 6 shown here in a side view then does not lie on the end stop. But as soon as a heavier fuel, for example Diesel oil, is used, the container 17 is inclined to Hitting the lower stop 22. This container, as soon as the toggle spring 25 has exceeded its horizontal position, additionally by the spring pressure up to Stop 22 inclined and held there.

46b ² H. 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg AC Nürnberg Execution to limit the full load

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The establishment according to yig. 3 corresponds in its basic structure and in its mode of operation to the naon Pig facility. 2. The reference symbols used in Pig.2 then apply accordingly. The difference compared to the arrangement according to Pig.2 is that instead of a mechanical transmission of the container inclinations, an electrical transmission is now provided. For this purpose, a contact piece 27 with a mating contact 270 is arranged on the container lid, by means of which the circuit 29 connected to a battery 210 can be closed or opened when the container is tilted downward Core 31 is connected to tongue 6 via an extension. To limit the stroke of this core near the bottom, a stop 33 is provided which limits the downward travel of the armature when the armature 31 is pulled down by striking the disk 32. The upward travel of the armature is limited by the impact of an armature collar on the disc 32. If the container inclines upwards, the contact is closed and the armature 31 is thus attracted, the tongue 6 being divided into its price. The reverse tends to occur when waiting. of the container 17, the contact 270 is opened, because the coil 30 is de-energized, so that the armature can perform a downward stroke movement by its own weight and the soling tongue 6 is pushed onto its end stop.

In Fig.4 a device is shown which operates on the viscosity of the fuel used responds. Liese Einrioh-

46b ² 14 1 SOS 527. Maschinenfabrik "Augsburg-Nürnberg AG. Nürnbcre I Device for limiting the amount of national fuel when using different - 11 - such fuels for a: Einspntz-

fuel machine. «« ^ »» ^ Τ, -ίΤ? Diesel engine. 5. 12. 57. M 26/61. (T. 1 /;

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The device consists of "a cylinder 34" in which a piston 35 is sealed · You piston rod 36 is with the handle again from Tome shown Ansohlagzunge 6 connected. Also are hi ^ j stops 37 and 38 are provided in the cylinder through which the piston movements are limited near the top or bottom The container 34 closed at the top is connected via a line 40 to the discharge line, not shown here, for the to the Fuel nozzles accumulating Leok fuel quantity connected. Of the Leok fuel accumulated in the container can flow off again through the line 41 in which a diaphragm 42 is arranged.

This device works as follows: When running on gasoline, there is about four to five times more Leok oil in the injection nozzles than with gas oil. For this reason, this Leoköl collects in the cylinder of the container 34, the piston is relieved by a Druokfeder 39, because by incorporating the correspondingly sized aperture 42 fran ^ at once nioht as much gasoline as drain flows. In the case of gasoline operation, a pressure builds up through which the piston 35 moves downwards and thus the tongue connected to the piston rod 36 is moved downwards, i.e. away from the end stop. If the engine is operated with gas oil, then due to the greater viscosity of the gas oil on the nozzle guides there is much less Leok fuel and consequently there is no build-up in the container 38, because this little fuel is even left out of the container through the aperture 42 when it flows out not or at least not waeentlisb inhibited. The piston remains in its raised position by the spring, ie when operating with diesel oil, the

impact tongue 6 in front of the end stop 4 for the Vollastiiebel. [

46b- H 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg A.G .. Nürnberg | Device for limiting the amount of load fuel when using different types of fuel for an injection internal combustion engine. especially a diesel engine. 5. 12. 57. M 26/61. (T. 1>:

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In Pig. 5 Is another device shown, although it also responds to the viscosity properties of one of the fuels. This device consists of one Container 43 in which a piston with a precisely defined game is led. In this case, a constant amount of fuel must be introduced into the container through line 45 and be derived again at 46. If fuel with a high viscosity is used, then the friction is due to the The gap formed between the piston and the container wall is larger and the piston is up from the fuel flowing through it to hit the Ansohlag 47 hochgedrüokt. The stop tongue is then set in front of the end stop. On the other hand, it is gasoline used, i.e. a fuel with a lower viscosity, se is therefore also the friction between the piston and the The flow gap formed by the cylinder wall is less »i.e. the piston remains due to its own weight in its lowest "limited by a stop 48 position and thus remains the base 6 outside the limiting working area »

The different evaporation temperatures of the individual fuel types can also be used for the control processes Setting the full load stop can be used. In this If so, for example, the device according to Pig.4 would be particularly suitable, since here the Leok fuel, for example by arranging this device at a particularly warm point of the Engine (cylinder wall, cylinder head), depending on whether Bensin or Diesel oil is used, to a greater or lesser extent

46b ² , 14. 18OS 527. Machine factory Augsburg-Nürnberg AG. Nuremberg. {Device for limiting the full-load fuel quantity when using different types of fuel for an internal combustion engine, in particular a diesel engine. 5. 12. 57. M 26761. (T. 17: line 1)

steams * so that then on the piston besides the öewioht susätslieh that weighs down on the beaufa © complained of Kölbenfläohe Steam pressure acts · In this case, of course, the Cross section of the throttle arranged in the drain accordingly measured

Claims (13)

46b- 14 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg A.G .. Nürnberg \ Device for limiting the full load machine factory Augsburg-Nürnberg Aw1 Nürnberg Hürnberg, February 15, 1960 Protection claims 1. Device for limiting the full-load fuel quantity at Use of different types of fuel by setting the full load stop for the filling lever of the injection pump an internal combustion engine, in particular a diesel engine, the setting of the full load stop taking advantage of the physical characteristics of the individual fuels, preferably the difference between whose specific weights and / or the viscosity of the respective fuel is carried out, characterized in that that for setting the full load stop a solid body immersed in the fuel, for example a float (7) is provided whose immersion depth changes when the type of fuel is changed for adjusting one or more stop tongues that limit the full load stop for the filling lever, (6) the matched in their thickness to the respective fuel type are, preferably transferred automatically. -2- z. i) 46b ² 14. 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg AG. Nuremberg.
Device for berries = ", the amount of load fuel when using different types of fuel for a fuel consumption machine, especially a diesel engine. 5. 12. j /. M 26/61. (1- 1 /. 2. Device according to claim 1, characterized in that the attachment tongue or tongues by the lifting movements of the The float is operated or operated on a mechanical, hydraulic, pneumatic or electrical V / ege. , 3. Device according to Claims 1 and 2, characterized in that that the float (7) is guided and axially movable in a container (9) through which the fuel flows either directly, for example via a linkage (12), or with the interposition of a, preferably as Power amplifier trained hydraulic, pneumatic or electrical device with the tongue (6) for the End stop (4) is connected. 4. Device according to claim 3 oit linkage transmission Stroke movements of the float and with several coordinated in their thickness to the different types of fuel Stop tongues, characterized in that these tongues along the circumference of the transmission linkage in a duxoh the respective float position assigned to the mutual axial distance are arranged, 5. Device according to claim 3 with several in their thickness stop tongues adapted to the different types of fuel «characterized in that these tongues as Perimeter of a rotatably mounted disc are arranged, which od via a crank or a toothed segment. Like. With the Transmission linkage of the float is connected. 46b ² 14 1 SOS 527. Maschinenfabrik Augsburg-Nürnberg AG. Nuremberg facility: ura limit the full load "" amount of fuel when using vcrsdi.e- ΖΊ. HKi. am such fuels for an internal combustion engine. especially c inen -3- diesel engine. 5. 12. 5 /. M 26/61. (T. 1 /; Line 1) 6. The various different specific weights of the fuels used responsive means according to claim 1, characterized by a closed fuel tank (17) "which is tiltably supported in the direction of its horizontal axis and flexible connections, preferably hoses (24, 25) for the Kraftstoffzu- or derivative (Fig. 2 and 3). 7. Device according to claim 6, characterized in that the fuel tank (17) with one arm (18a) of a rotatably mounted double lever (18) is connected, the other lever arm (18b) has a counterweight (20) and that stops (16 , 22) for limiting df »r beidaeitigen Hei gungsaussjbläge of the fuel tank provided (Hg.2) 8. Device according to claims 6 and 7, characterized in that that the container (17) has a slidably mounted Linkage (14,26) is articulated to the stop tongue (6). 9. Device according to claim 1, which responds to the viscosity of the fuel used in each case, that in from the injectors to the fuel sump a cylinder (34) on a return line (40) known to me for the leak fuel from the injection nozzles with a guided therein acted upon by the leak fuel piston (35) is switched on, the piston rod (36) with the stop tongue (6) is connected, and that in the cylinder head the fuel supply as well as with a nozzle or Orifice (42) provided drain line is arranged 1st (Fig.4). 46b-, 14. 1 SOS 527. Machine works Augsburg-Nuremberg A.G .. Nuremberg. | Device for limiting the full-load amount of fuel when using different types of fuel for an internal combustion engine. especially one Diesel engine. 5.12.57. M 26,761. (T. 17; -4- ^z " 2Ί.ΗΜ.13δί 10. Device according to claim 9 »characterized in» daS the piston (35) is relieved by a counterweight, for example a compression spring (39). , 11. Device according to Claim 1, responsive to the viscosity of the fuel used in each case always with the same amount of fuel traversed cylinder (43) in which a piston (44) is guided with play, the fuel flow through the is passed through the gap formed by the Xolbenspiel. 12. Device according to claims 1 and 2 and and the Claims 4 to 11, characterized in that for each stop tongue one by contact lever for a fuel change responsive device (float 7, container 17, piston 35, 44) controlled electrical relay is provided, the anchor of which is connected to a stop tongue. 13. Device according to one of claims 1 to 12, characterized in that the full load stop (4) by a Screw connection (4a) is also adjustable. Dta » Ufttafteg» & βΟ * & 8% twtd thrust «**.) In 0» wdbtok eteeeatefttot «a woid * ve * the wwi of the vnprOngitch received documents whether. The legal responsibility for AbwetchwtQ is not valid. uT5pnin ^ nch elogweicM · «Documents are in« Sen Aentsatden. Se kümen (edsizeit without N: ch.v.; T f «sh> Uch« n tnteressaB oebOhKttiret ötrto «« ar «^ t. Upon request, I will rärofcoplen o & * rWry w den üüdiSi FfiissÄ gteetort, DssrtsdvM ΚΜ & Λ «ττΛ. broixfa »nustv% te! t».