DD152164A1 - LUBRICATION SYSTEM FOR A COMBUSTION ENGINE - Google Patents

Abstract

The aim of the invention is to have a very effective working, inexpensive producible lubrication system available. The object of the invention is to design the lubrication system in such a way that the lubrication points are supplied with lubricating oil at a certain time depending on the machine running speed with a correspondingly adapted quantity. According to the invention, a plurality of oil distribution systems are connected to one of a lubricating oil pressure-regulated lubricating oil supply via lubricating oil main line via which several lubrication lines connected internally to electrically controllable, on the input side coupled to the respective supply line oil passage control elements are connected, their electrical controls connected via control lines with an electronic central control unit, which are the machine speed proportional control signals zuführen, there evaluated by special circuit units and processed to the effect that the Oeldurchlaszsteuerelementen the oil distribution electrical impulses in a specific order, at certain times with a certain time duration for release d. Lubricating pipes u. exactly metered quantities of lubricating oil can be added to the individual lubrication points.

Description

O 3 - / \ - Berlin, 3. 11. 80

57 772 16

Lubricating system ^ f Ur ^, a -S racing engine

The invention relates to a lubricating system for supplying lubricating oil to a plurality of spatially distributed lubrication points on internal combustion engines with a lubricating device and an electronic control device, the proportional to the cyclic release of the lubricating oil of the machine speed electrical control signals can be fed.

Chartsteristik, the bokannten technical solutions

By DE-OS 2 7.18 433 an electrical control device is known by the speed of a machine, ice is called application, a machine tool, proportional measuring signals can be generated, d.ie connected to the control unit lubrication device for releasing the lubricant can be fed «Das speed-proportional measuring signal is derived from a controlled drive of the machine, converted into a frequency proportional to this • and fed to an adjustable frequency divider. This frequency divider is manually set to a specific number of pulses representing the lubrication time. When this set value has elapsed, the frequency divider will display an output signal which will switch on a likewise manually adjustable lubrication time stage, which will enable a lubrication process for a specific time. Due to the manually adjustable switch-on time of the lubrication time stage, the lubricant quantity is also directly specified «

About type, structure and function of the lubricating device, except

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the the number dor to be lubricated, however, says nothing in this prior publication, so that it can give no hint of the solution of the problems in the lubrication of moving parts of an engine "

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The aim of the invention is to have available a very effective, inexpensive producible lubrication system.

The object 'of the invention is in contrast to a lubrication system of the type mentioned in this form such that the lubrication points are supplied depending on the machine speed with a correspondingly adapted amount at a certain time with lubricating oil and thereby a locally accurate lubricating oil supply in a well-defined Area is guaranteed at the parts to be lubricated in each speed range and each load case of the internal combustion engine. In addition, this lubrication system provides a significant manufacturing cost reduction over comparable, purely mechanically controlled lubrication systems ^

The object of the invention is in a lubricating system for supplying lubricating oil to a plurality of spatially distributed lubrication points with a lubricating device and an electronic "control device for the cyclic release of the lubricating oil of the machine speed

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** · ο * ™

proportional to the electrical control signals are supplied, according to the invention solved in that at one of a lubricating oil pressure generator with lubricating oil regulated pressure supplied lubricating oil main line branching therefrom supply lines several oil distribution systems are connected, each of which lead away a plurality of lubrication points connected lubrication lines internally to electrically controllable ₍ coupled to the respective inlet line coupled oil passage control elements whose electrical control elements are connected via control lines with an electronic central control unit, the speed of the machine proportional to the control signals are fed there evaluated by special processing units and processed to the effect that the oil passage control of the oil distribution electrical impulses in certain Order, at certain times with a certain time duration to Fr eigabe the lubricating oil lines and precisely metered amounts of lubricating oil can be fed to the individual lubrication points,

The üldurchlaßsteuerelemente are formed within an oil distribution system by electro-hydraulic servo valves, each of which is connected on the input side via a branch with the supply line and the output side with a leading to a lubrication point lubrication line and an electrical control line with aer electronic central control unit *

The oil passage control elements can also be made of an electrohydraulic servo valve within an oil distribution system, a rotary operating downstream of this

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Electro-hydraulic changeover switch with housing and distributor rotor consist of which the latter a servomotor as, drive and a sensor are assigned to discharge its switching position. The servo valve, the servomotor and the sensor are each connected via an electrical control line to the electronic central control unit. »The distributor rotor has an inlet reservoir, which is supplied with lubricating oil at the supply line which can be opened by the servo valve and is connected to a rotor-internal distributor channel , which is connected in each rest position of the distributor rotor to one or more of the opening into the housing lubrication lines.

Another embodiment consists in that the oil passage control elements within an oil distribution system consist of a rotary hydraulic switch with housing and distributor rotor, which latter are assigned a servomotor as a drive and a sensor for sensing its switching positions. The servomotor and the sensor are connected via an electrical control line to the electronic central control unit. »The distributor rotor has an inlet reservoir, which is supplied with lubricating oil from the supply line on the supply side and is connected to a distribution channel inside the rotor in any normal position of the distributor rotor during the lubrication phases to one or more of the opening into the housing lubrication lines, however'der the lubrication pauses in Zwischenstel-, lungs not connected to the lubrication lines.

The electronic central control unit has a microprocessor to control oer lubricating oil release of each

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Lube lines of the internal combustion engine and other functions, such as the control of the lubricating oil pressure generator, and other switching assemblies, such as amplifier circuits, for amplifying the microprocessor leaving control signals.

The arranged in the electronic central control unit microprocessor consists of a central processing unit, at least one read memory as read-only memory for user programs, at least one read-write memory as the main memory Sys'tems, a clock source, a time base and possibly an additional logic «These parts are on an all common central, multi-core data distribution channel (data bus) connected to the other hand, the leading to the electrical components of the individual ülverteilerysteme control lines and controlled by the crankshaft of the engine digital incremental or analog resolver is connected * In the case of analog operation the resolver one whose voltages generated in corresponding digital signals converting and downstream of the microprocessor in the electronic central control unit analog-to-digital converter.

Dedem oil distribution system is assigned to release its lubrication lines arranged in dpr electronic central control unit electronic Steuerschältungsmodul.

Dedem control circuit module of the electronic central control unit is connected upstream to obtain path-dependent and engine running speed proportional control signals, a control switch, which is arranged fixedly by a per

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this .vorbeibewegbares, arranged on a moving part of the engine, such as the crosshead trigger element limited by the length of the latter, direct start, duration and end of the activation of each connected Sfceuerschaltungsmoduls and thus also marked the beginning, duration and end of a Schifiiervorganges.

It is further provided that for activating the respective 'control module only in one direction of the relative movement between the control switch and trigger the control switch in the direction of the triggering element upstream of a directional control switch and a further direction control switch are connected, both also activated by the triggering torque and Stoordleitungen with the connected to the control switch connected control circuit module »

üeder control circuit module of the electronic central control unit consists of a flip-flop and an AND gate whose first input is connected to dera control switch and whose second input is connected to the output of the flip-flop »The input of the flip-flop opposite set input is connected to the upstream Directional control switch and the reset input of the flip-flop connected to the downstream directional control switch »The pulses appearing at the output of the AND gate are used for the cyclic release of the lubrication lines of the connected oil distribution system and for controlling a cyclic shifting of the said triggering driver circuit initiating the transmission. Gate downstream driver circuit consists of a ring counter, which optionally an amplifier circuit is connected downstream of

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whose outputs are each connected via a control line to one of the electro-hydraulic control valves of the respective UL distribution system »

At the output of the AND gate the only servo valve of each connected ülverteilersystems and via a Steuerereihgang the driver circuit are connected via a control line, the driver circuit for driving the servomotor and connected via a control line with this and another control line to the sensor dos each ülverteilersystems connected 1st.

In the control line leading from the control switch to the AND gate, the electronic control circuit module has a timer which, inter alia, has an integrator stage, into which electrical signals are continuously fed via a supply line from a tachogenerator driven by the crankshaft of the internal combustion engine, the timer for speed or machine speed dependent control of the duration of Schmierlei.tungsf reigabe the respective connected oil distribution system after determining the start of release by activation of the control switch is used.

An advantageous embodiment is that each electronic control circuit module in the direction from the control switch to the AND gate, - leading control line, a first timer and a second timer, each having, inter alia, an integrator stage, in which via leads continuously electrical signals from a supplied by the crankshaft of the internal combustion engine driven Tacho ~ generator, wherein the first timer

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for controlling the speed or machine speed of a delayed triggering of the lubrication line release of the respectively connected oil distributor system and the second timer for controlling the duration of the lubrication line release in the connected oil distributor system after activating the control switch, depending on the speed or machine speed.

It is further provided that in the electronic central control unit in addition to the control circuit modules, a control circuit for controlling a consisting of a high-pressure lamp, a pressure control valve, this driving servomotor and a Drehwinkelabnehmer lubricating oil pressure generator is arranged, which also continuously electrical signals from the driven by the crankshaft tachogenerator for speed or, machine speed ratio proportional control of the lubricating oil pressure be supplied «

Advantageously, the circuit elements of the electronic central control unit are arranged primarily on a single circuit board and together with this form an externally prefabricated plug-in module which can be used in a control box and, if necessary, can be exchanged in its entirety.

The lubrication system of the invention automatically distinguished by its function of the machine speed or speed-controlled oil supply to each lubrication point at the right time, with the required time, the necessary pressure "therefore a respectively adapted to the Belaotungsfall amount of lubricating oil in the overall

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desired location of the lubrication from "The inventive restriction of mechanical components for pressure generation and for the opening or closing of leading to the lubrication points Schinierleitungen and the use of otherwise fully electronic control can also reduce manufacturing costs compared to comparable mechanically controlled lubrication systems to a considerable extent" In addition, since all the circuit elements of the electronic central control unit are primarily summarized on a single circuit board and form a prefabricated, if necessary in its entirety replaceable plug-in module, a rapid damage repair is possible in any case of failure, since in this case only the defective plug-in module by a new ones have to be replaced «

The invention is described in more detail with reference to several illustrated in the drawing tion embodiments «show it:

Fig _e 1 is a schematic diagram of the gosamtanordnung a lubrication system according to a first embodiment;

Fig. 2 {a schematic diagram of the overall arrangement of

Lubricating system according to a second embodiment;

Fig. 3ϊ shows an arrangement of lubrication points on a cylinder;

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FIG »4i control oer lubricating oil pressure generation at the Varian.te of FIG .1.

FIG. 5 shows the control of the lubricant oil pressure generation in the variant according to FIG. 2; FIG.

Fig. 6: a first embodiment of an oil distribution system;

FIG. 7 shows a second embodiment of a distributor system; FIG.

8 shows a third embodiment of an oil distributor

system;

FIG. 9 shows a first embodiment of a control circuit module for an oil distributor system according to FIG. 6; FIG.

FIG. 10j shows a second embodiment of a control circuit module for an oil distribution system according to FIG. 6; FIG.

Fig _e Ils a third embodiment of a control circuit module for an oil distribution system according to

Fig. 6;

if

'Fig. 12 shows a first embodiment of a control circuit module for an oil distribution system according to FIG. 7;

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Fig. 13s shows a second embodiment of a control circuit module for an oil distribution system according to Fig. 7;

FIG. 14 shows a third embodiment of a control circuit module for an oil distribution system according to FIG. 7; FIG.

FIG _e 15ϊ details of a first timing element of the circuits of FIGS. 10, 11, 13 and 14. "

FIG. 16: Details of a second timing element of the circuits according to FIGS. 11 and 14

In the figures, the same or corresponding parts are given the same reference numerals.

1 and 2 are each echematisch the Gesaratanordnung a lubrication system according to the invention for a multi-cylinder internal combustion engine, here a two-stroke internal combustion engine, shown »With 1, the crankshaft, with Zl; Z2; Z3 to Zn are the cylinders and with Kl; K2; K3 to Kn the associated pistons of the internal combustion engine referred to »The pistons are each about piston rods 2 and rods 3 with the interposition of a crosshead with shoe 4, supported on associated slideways G, coupled to the crankshaft 1. With 5 is a lubricating oil tank referred to über'eine delivery line 6, a lubricating oil pressure generator is arranged downstream of 7 "from the latter ausgangseeitig leads designed as a high-pressure accumulator lubricating oil main line 8 away, branch off from the turn feed lines 9, to which each a respective ülvorteilersysteni OVI j

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0V2; 0V3 to OVn is connected. "Of these oil distributor systems, one of each of the cylinders of the internal combustion engine is in each case supplied with power to supply its detailed lubrication points S1 shown in FIG. Assigned to S2 to Sn and with said lubrication points via associated Schinierleitungen PLl; PL2 connected to PLn. The nozzles D of the individual lubrication points are in an advantageous manner, in order to obtain the widest possible wetted with lubricating oil mist lubricating angle range, directed almost tangentially to the cylinder wall. In addition, it is also possible, as indicated in FIG. 1 by dashed lines, to supply lubricating points SK at the crossheads 4 and their slide tracks G via lubricating pipes from the connected oil distribution systems with lubricating oil. "

Oedes oil distribution system OVl to OVn has electrically controlled üldurchlaßsteuerelemente whose electrical control lines in each case a control channel Bl; B2; B3 to Bn summarized lead to an electronic central control unit 10 »the latter contains all necessary for controlling the lubrication circuit elements,

In the embodiment shown in Fig "1 are in the electronic central control unit 10, a microprocessor 11 for controlling the Schmierölfreigabo all individual lubrication lines and for controlling other functions, such as the lubricating oil pressure generator, also other switching assemblies, such as amplifier circuits 12 for amplifying the microprocessor 11 leaving control signals intended. The microprocessor 11 consists of a central processing unit CPU, at least one read-only memory ROH as read-only memory for user programs, at least one write ·

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222703

- 13

Read-only memory RAM as a working memory of the system, a Taktquelle'13 ,, a time base 14 and an additional logic 15, which is used for example to monitor individual functions. The aforementioned parts of the microprocessor 11 are connected to an all common, multi-core central data converter channel 16, a so-called data bus, connected / on the other hand, also leading to the electrical components of the individual oil distribution systems and other connected components Steuerloitungen are «This also includes from the crankshaft controlled resolver 17 which is connected via a feed line 18 to the data distribution channel 16.

By this .Drehmelder 17, the angular positions of the crankshaft with a very high angular resolution in binary coded form is supplied to the microprocessor as a control parameter "The resolution of a crankshaft revolution takes place .in 2, thus 512 steps, optionally also in 2,. 1024 steps, which results in a sufficiently accurate basis for an exact lubricant flow. In Fig _e 1, an analog resolver is shown, which outputs each angular position of the crankshaft corresponding electrical voltages, which are converted into digital signals in an analog-to-digital converter 19, arranged in the Zentralsteueroinheit 10 and fed via the Datonverteilerkanal 16 to the microprocessor 11 "

Instead of this analog rotary resolver 17 is also a digital incrementalor Kurbelvvinkelabnehmer used boron, the per revolution of the crankshaft pulses according to the number of pitch of the resolver, z "B. 1024 generated, in this case, the analog-to-digital converter Hin-

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2 2 2/03 - 14 - °

due * The attachment of the resolver 17 takes place at a location of the crankshaft, where virtually no or only very small Torsionsschvvingungen occur.

In addition, in the electronic central control unit, another analog-to-digital converter 20 is arranged, which also has its digital output on the data distribution channel

16 and is connected with its analog input to a Druckmeßvvandler 21, which is turned on to monitor the lubricating oil pressure in the lubricating oil main 8. By this Druckmeßvvandler 21 digitized pressure values are supplied to the microprocessor via the analog-to-digital converter and there in dependence on the by the resolver

17 signaled speed processed by program and if necessary aor lubricating oil pressure generator via channels 22 and 23 (Fig * 4) with signals for the appropriate oil pressure readjustment controlled »

The lubricating oil pressure generator 7 consists, as shown in FIG. 4, of a high-pressure pump 24, the lubricating oil through the feed line 6 from the lubricating oil tank 5 via a pressure control valve 25 in. The main oil 8 promotes «The Druckregolventil 25 is electrically adjustable by a servomotor 26, the over Channel 22 from the microprocessor with signals for a direction of rotation corresponding to higher pressure and over don channel 23 with signals for a Drohrichtung with correspondingly lower pressure ^ acted upon »This ensures that at the individual ülverteilersystemen constantly adapted to the Maechinenlaufgeschwindigkeit oil pressure is pending *

Below are three variants for the oil distribution systems OVl to OVn broom rubbed *

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7 Π

S U

- 15 -

In the variant shown in Fig. 6, the üldurchlaßsteuerelemente are within a ülverteilersystems OV by electro-hydraulic Servoven'tile SVl; SV2 to SVn formed. Oedes thereof is on the input side to a branched off from the feed line 9 supply line and the output connected to one of the lubrication lines PLL to PLn. In addition, each of the servo valves SVl to SVn via one disposed within an associated control channel B control line with control signals to its opening from the microprocessor 11 forth acted upon «This embodiment of the oil distribution system is particularly applicable in cases preferably, if not only the Schmierstellon Sl to Sn on a cylinder, but also other moving parts in the range of this cylinder of the internal combustion engine, for example, as mentioned above, the crosshead 4 and its slideways G are to be supplied with lubricant, since each servo valve SVl to SVn is individually aufsteuerbar by electrical signals. This variant of the Ölverteilersystoms allows the user to set a virtually any control cycle by program in the microprocessor »So it is possible, for example, those associated with the Schmierstellon Sl to Sn of the cylinder lubrication lines PLl to PLn one after the other or simultaneously in a regular change by appropriate control of It is also possible to release those lubrication lines leading, for example, to the crosshead 4 and its slide or other lubrication points independently of the program-side release of the cylinder lubrication points Sl _t to Sn in a suitable cycle by program « Read-only memory ROM and read-write memory RAM of microprocessor 11 specified «

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^ 16 -

In the variant of an oil distribution system shown in FIG. 7, the oil passage control elements consist of a single electrohydraulic servo valve SV ₁ which is seated in the supply line 9 upstream of a rotary electrohydraulic changeover switch 27. The latter consists of a housing 28 and a distributor rotor 29, which in turn is coupled to a servomotor 30 for its adjustment and cooperates with a sensor 31 for sensing its switching position. An 'inlet reservoir 32 of the distributor rotor 29 is on the inlet side of the releasable by the servo valve SV to-line 9 and the drain side · through a distribution channel 33 in each rest position of the distributor rotor 29 to one of the housing 28, opening at equal angular intervals arranged, lubricating lines PLl connected to PLn. The servovalve SV, the servomotor 30 and the sensor 31 are each connected to the data distribution channel 16 of the microprocessor 11 via a control line arranged within a control channel B. The control of these three components is determined by program in the read memory ROM and read-write memory RAf-I of the microprocessor 11, wherein initially at a certain time for a certain period the servo valve SV corresponding electrical signals are supplied, so that this opens After completion of this process, the servo valve SV closes again, aer actuator 3o receives a control command, whereby the distributor rotor 29 is rotated until the microprocessor by the sensor 31st the reaching of the next switching position is signaled and then the control command for the positioning motor is again

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is broken, so that the distributor rotor is stopped in this rest position with its distribution channel to the next lubrication line. This cycle is repeated for each lubrication process. In the embodiment shown in FIG. 7, only one lubrication point can be activated »If, however, several lubrication points are to be supplied with lubricant at the same time, then in this case only another distributor rotor 29 is necessary whose distribution channel 33 is shown in phantom in FIG , according to v.eröndert or supplemented would have to. By this measure, it would then be possible, for example, two or more of the distributed on the circumference of a cylinder lubrication points, see Fig, 3, to supply simultaneously with lubricating oil.

When Öer in Fig, 8 shown variant of a Ölvorteilersystems OV 1 to OVn consist of 'oil passage controls from a rotary electro-hydraulic switch 34 with housing 35 and distributor rotor 36 which is adjustable by a servomotor 37 and also cooperates with a sensor 38 for sensing its switching position , An inlet reservoir 39 of the distributor rotor 36 is connected on the supply side to the supply line 9 and output to a distribution channel 40 within the distributor rotor. In the housing 35, the lubrication lines PLl to PLn open, the inner ^ openings are arranged uniformly on the circumference of the distributor rotor 36. In the drawing, the distributor rotor 36 is shown with its distribution channel 40 in an intermediate position between two lubrication line openings. These intermediate positions are with odd numbers 1; 3; 5; 7; 9 and 11, while the lubrication line

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Even numbered holes 2; 4; 6; 8th; 10 and 12 are designated. In the intermediate positions of the distributor rotor, the passage from the supply line 9 to the adjacent lubrication line is blocked. The sensor 39 and the servomotor 37 are each connected to the data distribution channel 16 of the microprocessor 11 via a control line combined in a control channel B. The control of the two parts is done by program defined in the read memory ROM and read-write memory RAM of the microprocessor 11 *

For a lubrication process first receives the actuator 37 commands to rotate the distributor rotor 36 from an intermediate position in the next lubrication position »If this is reached, the servo motor stops due to a signal from the sensor 38 with feedback from the microprocessor 11, now distribution channel 40 and a Cover the lubrication opening line so that the skinning process can take place. * The dwell time of the distribution gate is controlled by the program and machine speed dependent. At the end of each lubrication phase, the control motor again receives a control command to "rotate the distributor rotor 36 to the next intermediate position, after which the servomotor propulsion is stopped again as a result of signaling by the sensor 38. This cycle is repeated for each lubrication operation By appropriately expanding or supplementing the Vertpilerkanales 40 in the distributor rotor, see dash-dotted lines, but also two or possibly several lubrication points are simultaneously supplied with lubricating oil in rotation with the other _e

Below is the function of these oil distribution systems in

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- 19 -

Interaction with the other elements of the lubricating system according to the invention shown in FIGS. 1, 3 and 4 «

Oede full revolution of the crankshaft 1 is the microprocessor 11 by the controlled by her resolver 17 at

10 a resolution of 2 steps in the form of 1024 pulses signaled «Since the movements of the piston Kl bis'Kn the internal combustion engine and thus also all other movable optionally lubricated parts are rigidly bound to the movement of the crankshaft 1, thus also the individual Schrnierorfen to assign very accurately determined number of pulses in relation to the total number of 1024 revolutions per revolution of the crankshaft. Thus, for example, the piston stroke, starting from bottom dead center UT during upstroke to top dead center OT, resulting from half a revolution of the crankshaft exactly represented by 512 resolver pulses, so that each range of the piston stroke is assigned an exact number of pulses between O and 512. Since further the lubrication points Sl to ^ .Sn, see Fig. 3, are arranged spatially fixed to the cylinder, for example, in the upper third is by appropriate impulse allocation spatially and temporally exgkt starting, injection of lubricating oil anischen dent first and second piston ring of a piston Kl to Kn possible. These spatially determined numbers of pulses are determined and stored in the microprocessor for each cylinder as digitized readings,. The same applies to the lubricating points of the cross-heads 4 and their sliding tracks G and optionally further parts to be lubricated, since the hydraulic control in is usually react somewhat delayed after release by the electronics, can

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be taken into account in determining the relevant pulse numbers in terms of a lead of the electronics with respect to the hydraulic already. However, the necessary lead can also be calculated by program by the microprocessor 11 in response to the signaled by the resolver 17 angular velocity of the crankshaft 1. The duration of a lubrication process can now also be marked as the beginning by vvegabhängig fixed pulse numbers, the difference between the upper and lower pulse number corresponds to the distance traveled by a piston during the lubricating oil injection phase. On the other hand, the duration of a lubrication process can also be calculated by the microprocessor 11 as a function of the rotational speed or angular velocity of the crankshaft 1 signaled by the resolver 17. In another program, in turn, the order of control of the individual oil passage control elements within the individual oil distribution systems OVl to OVn is set. This program can be designed so that it is lubricated at each piston stroke or only every other or further piston stroke. By another program, the control of the lubricating oil pressure generator 7 (Fig. 4) is determined by the servomotor 26 can be acted upon in response to the speed or angular velocity signaled by the resolver 17 in the microprocessor 11 with signals corresponding to a lubricating oil pressure increase or decrease , Signaling from the microprocessor to the servomotor 26, however, occurs only in the case when the calculated values do not match those of the pressure transducer 21 transmitted and digitized in the analog-to-digital converter 20 pressure values.

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The retrieval of the individual programs in the microprocessor is carried out by the central processor unit CPU, which is supplied by the clock source with a lying in the 100-kHz range clock frequency, according to their assigned different priority or the same priority in chronological order of their retrieval or in a defined time frame nested in one another »

In the embodiment shown in Fig * 2 variant of a Schmiersysterns the differences from the embodiment shown in Figure _e 1 variant in another construction of the electronic central control unit are 10 with a different control mode, and other electronic control means for the Referenzoignalerzeugung as well as for controlling the oil pressure generator and the üldurchlaßstGuerelemente the individual Oil distribution systems OVl to OVn * The latter are the same in construction in this variant as those used in the, variant of FIG. 1 and described with reference to FIGS. 6, 7 and 8. The same applies to the connection of the lubrication lines PL1 to PLn of the individual oil distribution systems OV1 to OVn with the associated lubrication points S1 to Sn on the respective cylinder, as described with reference to Figure 3. Furthermore, the cylinders Z1 to Zn, the pistons K1 to B5 Kn and their push rods 2, drive rods 3 of the same design and arranged as the corresponding parts according to Flg »1, but here schematised drawn side by side with view in the direction of the longitudinal axis of the crankshaft, while the Krouzköpfe 4 here with additional 'elements are equipped, as described below

In the central control unit 10, as shown in FIG. 2, a plurality of control circuit modules of identical design on the circuit side are provided

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SMl to SMn provided, of which each one of the ölverteilersysterne OVl to OVn for releasing its leading to the lubrication points Sl to Sn lubricating lines PLL to PLn is assigned «In addition, in the central control unit 10, an additional control circuit module ZSM to control an additional oil distribution system ZOV ₁ which serves for the central supply of lubrication points SK connected to lubrication lines GS1 to GSn to the slides of the individual crossheads, and a control circuit SP for the operation of the lubricating oil pressure generator 7. The lubricating oil pressure generator may consist of a constant high-pressure accumulator fed by a high-pressure pump from the lubricating oil tank 5 via the delivery line 6 with lubricating oil, at the output side of which the main oil line 8 is connected. In this case, the control circuit SP takes over the control of the high-pressure pump and the monitoring of the pressure level and the readjustment of the delivery rate in the event of a deviation.

A deviating from this solution with a lubricating oil pressure generator 7 and a control circuit SP for generating a machine speed-dependent oil pressure is shown in Fig _e 5. The lubricating oil pressure generator 7 shown therein is such as that of FIG _e 4 from a high pressure pump 24, the lubricating oil from the lubricating oil tank 5 through the feed pipe .6 to a pressure control valve 25.and about .This in the 'constructed lubricating oil' as a high pressure storage main line 8 promotes " The pressure regulating valve 25 is through. an electric servomotor 26 adjustable, the two control inputs via control lines 41 and 42 with the control circuit SP and there with your positive or negative

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57,772 16,

2 9 0 7 Π ^ -23-

The adjusting motor 44 is associated with a Stellwinkelabnehmer 44 whose Rotationswinkoländerungen are proportional to the pressure changes, The Stellwinkelabnehmer 44 is in turn connected to a converter 45, the angle of rotation converts into proportional electrical voltages to the negative input The positive input of the latter in turn is connected to a voltage converter 46, the input side via a control line 47 with a tachometer generator 48, see Fig * 2, is connected; the latter is driven by the crankshaft 1 and generates a proportional to the rotational speed AC voltage, the rectified in the voltage converter 46 and sieved. Dio so generated DC voltage is applied to the positive input of the operational amplifier 43 "Arn negative input is that coming from the converter, acting in proportion to the angle of rotation of the servomotor voltage. Are the voltages on both inputs the same size, is the servomotor, whereby a certain pressure on the pressure control valve 25 is set «increases the speed of the crankshaft and thus the voltage at the positive input of the operational amplifier 43, this responds to the positive differential voltage between the two inputs and issued the servomotor via the line 41 a command for forward rotation according to pressure increase * Dor servomotor then rotates until at the negative input of the operational amplifier 43, the dr.ehwinkelproportionale voltage has the same size as that at the positive input. In the same way follows a decrease in the speed of a readjustment of the oil pressure, wherein the negative difference voltage between the positive and negative input of

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Operational amplifier 43 is reduced by a corresponding control command via the line 42 for reverse rotation, with the result of a reduction in pressure to the servomotor 26 is reduced to zero. This results in a, optimal adjustment of the lubricating oil pressure to the machine speed, · · '

To obtain wcgabhängigor, machine speed proportional control signals each control circuit module SMl to SMn the electronic Zentralsteuereinhcit 10 is preceded by a control switch 49, which is fixedly arranged here on the slide G for the respective crosshead 4 and connected via a control line to the respective control circuit module and by a past him, on a movable part of the internal combustion engine, here on the crosshead 4 arranged release element 50 can be actuated. In this case, the switching path, limited by the length L of the trigger element 50 at relative movement between the control switch 42 and trigger element 50 directly start, D _a uer and end of the activation of the respective control circuit modules SHl to SMn and thus the activation of üldurchlaßsteuerelemente of each connected thereto ülverteilersysterns OVl to OVn, In order to avoid that the control switch 49 is activated not both in upward and downward movement, but only upon upward movement of the respective piston connected control circuit module, the control switch 49 in the direction of movement of the trigger 'element 50, a directional control switch 51 spatially connected upstream and another direction control switch 52 spatially downstream. Both direction control switches 51; 52 are also actuated by the trigger element 50 and

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also connected to the associated control circuit module via control lines * The position of the fixed control switch 49 is selected here with respect to the movable trigger element so that the start of lubrication after activation of the respective control circuit module immediately after the first piston ring in the space to the second piston ring. The location of the two directional control switch 51; 52 is arbitrary in the space between OT and UT; However, it is advantageously chosen so that in this way the connected both to this and to the control switch 49 additional control circuit module ZSM is activated only at the times for a release of the oil control elements of the additional Dlverteilersystoms ZOV, in which the lubrication points SK on the slideways G through the Sliding the associated crossheads 4 covered and the lubrication channels are released. **

An embodiment of a control circuit module SM for controlling a 'Glverteilersystems OV according to Fig * 6 is shown in Fig. 9. The control circuit module consists of a flip-flop 53, here a so-called RS flip-flop, an AND gate 54 and a driver circuit 55. The first input of the AND gate 54 is connected to the control switch 49 and the second input to the Q- Output of the flip-flop 53 connected The switching input S of the flip-flop 53 is connected to the directional control switch 51 and the reset input R thereof with the direction control switch 52 the output of the AND gate 54 is connected via a supply line to the driver circuit 55; The latter consists of a ring counter 56 with one of the number oer servo valves SVl to SVn of the connected olverteilersystems OV corresponding number of counting stages whose outputs via a

3. 11. 80 57 772 16

1 Ο "- 26 -.

Amplifier circuit 57 are connected to the leading to the individual servo valves control lines.

When starting the piston K, the trigger element 50 first passes the directional control switch 51, whereby the flip-flop 53 is set and a switching signal appears at the second input of the AND gate 54. When passing the control switch 49 by the trigger element "is also at the first input of the AND gate 54, a switching signal, so that this is turned on and at an output of the driver circuit 55, a signal appears through which the connected servo valve is driven and the associated lubrication line The beginning, duration and end of this lubrication process are defined here by the switching edges and the length L of the triggering element 50. If the triggering element 50 then also passes the other directional control switch 52 as the piston continues to move upwards, the reset input of the flip-flop 53 appears a signal, whereby this is reset and thus blocked "The latter has the consequence that with downward movement of the piston K in spite of pressing all three switches no signal can pass the AND gate." The above cycle is repeated at each upward movement of the piston, so that the Lubrication points Sl to Sn individually na each, are supplied with lubricating oil for each piston up stroke. ,

If a plurality of lubrication points on a cylinder are to be supplied with lubricating oil at the same time, in each case, several of the control lines leading to the servo valves of an ulverter oil system are connected to an output of the driver circuit 55 of FIG

3. 11. 30 57 772 16

- '' 2 22 7 0.3 - 27 - ··

Create control circuit module and reduce the number of counting stages of the ring counter 56 accordingly «i ί>

Another embodiment of a control circuit module SM for controlling a Ölverteilersystems nach'Fig «7 is shown in Fig. 12. This differs from that according to FIG. 9 with an otherwise identical structure and the same control only by another trained driver circuit 55 "Here is the output of the AND gate 54, the only servo valve SV of ülverteilersysterns OV according to FIG. 7 via the control line and a servomotor Driver stage with its input 58 connected latter consists of a first pulse circuit 59 which is connected to the input 50 and has substantially two series-connected mono-flops. The output of the pulse circuit 59 is connected to the set input S of a flip-flop 60, here an RS flip-flop whose output Q is connected via a Vorstärkerstufe 61 with the leading to the servomotor 30 (Fig, 7) control line. The sensor 31 of this oil distribution system is in turn connected to its control line to a second Impulsschal .tung 62, consisting essentially of a mono-flop, within the servomotor driver stage. The output of the pulse circuit 62 is connected to the reset input R of the flip-flop 60th connected.

This control circuit module now has the following functions. As a starting point, a piston position at UT was assumed here as well. Upon upward movement of the piston K, the trigger element 50 first passes the directional control switch 51, whereby the flip-flop 53 is set and a signal at the second input of the AND gate 54 is present. When the control switch 49 passes through the triggering element 50, a signal is also applied to the first input of the AND gate 54,

3, 11. 80 57 772 16

so that this is then switched through the signal appearing at the output of both the servo valve SV of the connected 'oil distribution system (Fig. 7) is supplied, whereby the lubrication line is released, and the first pulse circuit 59 is supplied by the delayed after the end of Through the AND gate, thus after the end of a lubrication process, given a short signal to the set input S of the flip-flop and this is durchgeechaltet. The signal appearing at the output Q is amplified in the amplifier stage 61 and fed to the servomotor 30 as a control command. This then drives the distributor rotor 29 until the inlet 31 thereof is signaled by the sensor 31 into the next switching position, as indicated by the second pulse circuit 62 given a short pulse to the reset input R of the flip-flop 60, this locked and the actuator 30 is stopped _e Dei further upward movement of the piston K appears when passing the direction control switch 52 by the trigger element 50 at the reset input R of the flip-flop 53, a signal The latter has the consequence that when the piston K is moved downwards, despite the fact that all three switches are actuated, no signal can pass the AND gate. The above cycle is repeated with each upward movement of the respective piston K, so that the lubrication points Sl to Sn (Fig. 3) depending on the design of the Distribution channels in the distributor rotor 29 individually one after the other, one per piston up stroke, or several are supplied together with each piston up stroke with lubricating oil.

In the variants of the control circuit module shown in FIGS. 9 and 12 and described above, the duration of a lubrication process is defined by the length L of the triggering module.

3. 11. 80 57 772 16

9 7 0 7

Elementes and Maschinenlaufgeschvvigkeit given. However, in order not to be bound to specific types of switches, two variants of a control circuit module SM are shown in FIGS. 10 and 13, in which only the beginning of a lubrication process is controlled by the trigger element 50. To control the duration of a lubrication process is in both the solution of Fig. 10 and in that of Fig «13 in both cases the same trained electronic timer · ZD in the control line from the control switch 49 to the first input of the AND gate 54 switched / t "This timer ZD is connected with its timing input to the control line 47, which leads to the tachometer generator 48 (Fig." 2). Otherwise, the structure of the solution according to Fig. 10 is the same as that of Fig. 9 and that of the solution according to Fig. 13 is equal to that of Fig. 12,

The timer ZD is shown in detail in FIG. It consists of a pulse circuit 63 whose input is connected to the control switch 49 and whose output at the set input S of a flip-flop 64, here an RS flip-flop. Its output Q is connected on the one hand to the first input of the AND gate 54 and on the other hand to an integrator stage 65. In turn, its output is connected to the positive input of a comparative operational amplifier 66 'whose negative input is connected to the control line 47 from the tachogenerator 48. The output of the operational amplifier 66 is fed back to the reset input R of the flip-flop 64.

This circuit arrangement is now based on the following function: If the Steuerochalter 49 is actuated during the upward stroke of a piston K, by the pulse circuit 63 a

3 · 11 · 1980 57 772 16

   222703 '-so-

given a short pulse to the Setzeingong S of the flip-flop 64, so that this turns on and gives a signal to the first input of the AND gate 54, the latter is thereby, since the second input already a signal is triggered by directional control switch 51, through, whereby the respective lubricating operation starts, · simultaneously, however, the connected integrator stage 65 receives the output Q of the flip-flop 64 a voltage signal, which is processed to the effect in this that a uniformly increasing voltage appears at the output thereof, the slope of which in function of the input voltage is fixed. This rising voltage is fed into the operational amplifier 66 and compared therefrom to the speed-proportional voltage generated by the tachogenerator 48 via the negative input. If the voltage coming from the integrator stage 65 exceeds that of the speed-proportional voltage, the operational amplifier 66 outputs a signal at its output .ab, which comes to the reset input of the flip-flop 64 and this tilts back in the blocking state with the result that auch.das the AND gate 54 then locked again and the lubrication process is completed. As soon as the voltage at the input of the integrator stage 65 disappears, the output voltage _e goes back to zero The remaining steps in the function within a cycle is then the same as described above with reference to FIGS. 9 and 12.

Since the beginning of a lubrication process with increasing speed and especially in the high speed range due to the inertia of the hydraulic controls with respect to the piston position is always somewhat delayed compared to the desired

3. ' 11. 80 57 772 16

2 2 7 0 3. - si -

Timing occurs, this problem can be accommodated by a control circuit module SM, with both the control of the beginning of a lubrication process and the duration thereof in dependence on the machine speed is controlled speed. Two variants of a control circuit module SM suitable for this purpose are shown in FIGS. 11 and 14; The solution according to FIG. 11 serves to control an oil distribution system according to FIG. 6 and the solution according to FIG. 1A to control an oil distribution system according to FIG. 7. The solutions according to FIGS. 11 and 14 differ from those according to FIG. 13 with otherwise the same. Structure only in that the timer ZD in the control line from the control switch 49 to the first input of the AND gate 54, a timer ZB is connected upstream of the speed-dependent control of the lubrication process start.

This timer ZB is also like the timer ZD connected to the control line 47, which is connected to the tachogenerator 48 and shown in detail in Fig «16, In this solution, it is necessary to spatially forward the control switch and the trigger element, such that the signal from the control switch 49 with respect to the piston position slightly earlier than in the variants of FIGS. 9, 10, 12 and 13 appears »At low speed of the crankshaft, the time delay between the start of the signal from the control switch 49 and the beginning of the Lubrication triggering signal greater than at 'high speed'

The timer ZB has a flip-flop 67, here an RS flip-flop, whose input S is connected to the control switch 49 "The output Q of the flip-flop 67 is on the one hand

3. 11. 80 57 772 16

"- 32 -

to the first input 68 of an electronic switch 69 and on the other hand connected to a pulse circuit 70. Its output in turn is connected to the input of the pulse circuit 63 of the timer ZD (Fig. 15). The second input of the changeover switch 69 is connected to the control line 57 which is connected to the tachometer generator 48. The output of the changeover switch 69 is connected to an integrator stage 71 and this in turn is connected to a comparator 72 on the output side. whose output is connected to the reset input R of the flip-flop 67.

The operation of this circuit is described below * Upon actuation of the control switch 49 by the trigger element 50, a signal is passed to the set input S of the flip-flop 64, so that this tilts and the output Q, a signal appears, prepared by the one hand, the pulse circuit 70 and on the other hand, the normally open switch 69 is actuated.

As a result, the signal path from the tachogenerator 48 to the integrator stage 71 is then switched through so that it is supplied to a speed-proportional voltage. This has the consequence that at the output of the Intogratorstufe 71, the voltage increases linearly from zero starting, the slope of the rise depends on the input voltage. A high input voltage, corresponding to a high speed, results in a steep rise, while a low input voltage corresponding to a low speed results in a flat rise. In the comparator 72 this voltage is compared with a fixed voltage value. At the moment when the input voltage exceeds this fixed voltage value, the comparator 72 sends a signal to the

3. 11. 80 57 772 16

~ 33 -

Reset input R of the flip-flop 67, whereby this again tn't densiviv Sperrzustand. The duration of turn-on of the flip-flop 67 is inversely proportional to the slope of the rise of the voltage leaving the integrator stage 71. The flip-back of the flip-flop 67 into its off state causes an opening of the switch 69, so that the output voltage of the integrator stage 71 -, which goes back to Mull t-f, and also the pulse circuit 70 is turned on and a short signal to the input of the pulse circuit 63 of the timer ZD is given «This signal marks the beginning of a Schrniervorganges whose duration is determined by the timer ZD and as described above.

The control switch 49 and the two directional control switches 51; 52 with triggering element 50 can be designed both as a mechanical or non-contact magnetic, optically capacitive switches, provided they meet the requirements for temporal accuracy, high switching speed, long life and high noise immunity. It should be noted that these switches 49; 51; 52 including the trigger element 50 is not necessarily on the slide G of a crosshead 4 or, must be attached to the crosshead, but this _v any other suitable location within the internal combustion engine in question * Moreover, it is also possible because the movement of the piston rigidly to the movement of the crankshaft is bonded to use for controlling the pulse supply to the individual control modules scarf-tung a central, controlled by dor crank pulse control device, which can be reduced to "involves the use of individual switches.

3. 11. 80 57 772 16

The additionally provided for the crosshead lubrication in addition to the other control circuit modules SMl to SMn control circuit module ZSM can be constructed in terms of its driver circuit in the same manner as those in Figs. 9 to 14 illustrated embodiments, the same applies to the 'um'lverteilersystern connected thereto. For the sake of simplicity, to control the additional control circuit module ZSM, the switches 49, 51 and 52 and the tripping element 50 of a cylinder Z are used and signals are derived from their supply lines to the connected control circuit module via branches 73 coupled thereto, see Fig. 2. From the directional control switch 51 Upcoming signals are used to control the lubrication points SK located at the slideways and signals from the directional control switch 52 to control the lubrication points SK located at the slideways G above. "Signals coming from the control switch 49 are used to prepare a lubrication process.

Advantageously, all of the circuit elements of the electronic central control unit 10 are arranged primarily on a single circuit board. The latter has at its edge plug or sliding contacts and, together with the arranged thereon electronic circuit elements a prefabricatable plug-in module, which in an appropriately designed switch box (not shown) can be used and if necessary, for "example, when a defect in its entirety is interchangeable. In the control box, all the control lines which are connected to the individual elements to be controlled are connected to corresponding connection elements connected to the. Plug or Gleitkontakton the circuit board in the installed position thereof are electrically contacted.

Claims (17)

1. Lubricating system for an internal combustion engine for supplying lubricating oil to a plurality of spatially distributed lubricating oil with a lubricating device and an electronic control device , oar for the cyclic release of the lubricating oil of Masch.inenlaufgeschwindigkeit proportional electrical control signals can be fed, characterized in that at one of a plurality of oil distribution systems (OVl to OVn) are connected to a lubricant oil pressure generator (7) supplied with lubricating oil regulatable pressure, each of which several lubrication lines (PLl to PLn; GS1 to GSn), which are internally connected to electrically controllable, on the input side at the respective supply line (9) coupled üldurchlaßsteuerelemente (SVl to SVn; SV; 27; 20; 29; 32; 33; 34; 35; 36; 40) are connected, whose electrical control elements via Steuerlei tions are connected to an electronic central control unit (10) 'to which the machine speed proportional control signals can be supplied, there by special Schaltuhgseinheiten (11; 19; 20; SMl to SMn; SP; ZSM) are evaluated and processed to the effect that the üldurchlaßsteuerelementen the oil distribution systems electrical impulses in a specific order, at certain times with a certain period of time to release the S.chmierölleitungon and accurately metered amounts of lubricating oil can be fed to the individual lubrication points, 2. lubrication system according to item 1, characterized in that 3 «11. 80. 57 772 16 Machine run speed-dependent control of the duration of the lubrication line release in the connected oil distribution system after activation of the control switch (49) is used, 3. 11. SO 57 772 16 3. 11. 80 57 772 16 the set terminal (S) opposite the flip-flop is connected to the upstream direction control switch (51) and the reset line (R) of the flip-flop (53) is connected to the downstream direction control switch (52), and the output of the AND gate (54 ) appear pulses for the cyclic release of the lubrication lines (PLl to PLn) of the connected oil distribution system (OVl to OVn) and to control a cyclic continuation of said oil passage control elements triggering driver circuit (55) « 3. 11o 80 57 772 16 a control switch (49) is arranged upstream, which is fixedly arranged by eira on this past * movable, on a movable part of the internal combustion engine, such as the crosshead (4), arranged trigger element (50) is activated, wherein the switching path at Relative movement between control switch (49) and trigger element (50) limited by the length (L) of the latter directly start, duration and end of the activation of each connected Stcuerschaltungsmoduls and thus also directly start, duration and end of a lubrication process markie.rt, 3. 11. 80 57 772 16 ordered microprocessor (11) comprising a central processor unit (CPU), at least one read-only memory (ROM) as read-only memory for user programs, at least one read-write memory (RAM) as main memory of the system, a clock source (13), a time base (14 ) and optionally an additional logic (15), which parts are connected to an all common central, multi-core data distribution channel (16), on the other hand also leading to the electrical components of the individual ülverteilerysteme control lines and one of the crankshaft (1) of the internal combustion engine controlled, digital incremental or analog resolver (17) are connected. 3. 11. 80 57 772 16 3. 11. 80 57 772 16 the üldurchlaßsteuerelemente within an ö'lverteilersystems (OVl to OVn; ZOV), electrohydraulic servo valves (SVl bio SVn) are formed, each of which on the input side via a branch with the supply line (9) and the output side to a lubrication point (Sl to Sn ; SK) leading lubrication line (PLl to PLn; GSl; GSn) and via an electrical control line to the electronic central control unit (10) is connected «, Lubricating system according to item 1, characterized in that the oil passage control elements within an oil distribution system (OVl to OVn; ZOV) consist of an electrohydraulic servo valve (SV), a downstream electrohydraulic changeover switch (27) with housing (28) and distributor rotor (29) , to which the latter a Stollmotor (30) as driving and a sensor (31) are assigned to the sensing of its switching position, and that the servo valve (SV), the servomotor (30) and the sensor (31) via an electrical control line with the electronic Central control unit (10) are connected, and that the Verteil.errotor (29) an inlet reservoir (32), which is zulaufseifig at the releasable by the servo valve supply line (9) supplied with lubricating oil and connected to a rotor-internal distribution channel (40) , which in each rest position of the distributor rotor to one or more of the housing (28) opening lubrication lines (PLL to PLn; GSl to GSn) is connected. 3 * ii. 80 57 772 16 2O O -7 Π Q 4 'lubrication system still point 1, characterized in that the, oil passage control elements within * Cerne' cilver, divider system (OVl to OVn; ZOV) from a rotary hydraulic changeover switch (34) with housing (35) and distributor rotor (36) , the latter a Stellmotor (37) as drive and a sensor (38) are assigned to the sensing of its switching positions, that the servomotor (37) and the sensor (38) via an electrical control line with the electronic Zentralsteuerein-, unit (10) are connected, and that the distributor rotor (36) has an inlet reservoir (39) which is fed soapy from the supply line (9) with lubricating oil and rotorintern to a distribution channel (40) is connected, in each second rest position of the distributor rotor ( 36) during the lubrication phases to one or more of the lubrication lines (PLl to PLn, GS1 to GSn) opening into the housing (35), but during the lubrication intervals in the intermediate position s not connected to the lubrication lines. 5 "lubrication system according to dor items 1 to 4, characterized in that the electronic central control unit (10), a microprocessor (11) for controlling the lubricating oil released all of the individual lubricating oil passages of the engine as well as other functions such as the control of the oil pressure generator (7), and other switching modules, such as amplifier circuit ^! (12) for amplifying the control signals leaving the microprocessor (11) « 6 ". Lubricating system according to item 5, characterized in that the in the electronic central control unit (10) on ' 7, lubrication system according to item 6, characterized in that dom resolver (17) in the case of analog operation , whose generated voltages are converted into corresponding digital signals and connected in the electronic central control unit (10) to the microprocessor (11) upstream of the analog-to-digital converter (19). 8. Lubricating system according to one of items 1 to 4, characterized in that each oil distribution system (OVl to OVn; ZOV) for releasing its lubrication lines (PLl to PLn; GSl to GSn) in the electronic central control unit (10) arranged electronic control circuit module ( SMl to SMn; ZSM) is assigned, 9 9 2 7 ft Q - 4i - 9 * lubrication system according to item 8, characterized in that each control circuit module (SMl to SMn; ZSM) of the electronic central control unit (10) for obtaining wegab- 10 ". Lubricating system according to item 8 or 9, characterized in that, in order to activate the respective control circuit module (style up to Si-In; 2SM), a direction control switch (51) is connected upstream in one direction of the relative movement between control switch (49) in the direction of movement of the trigger element (50) a further direction control switch (52) are nachgoschaltet, both of which are also activated by the trigger element (50) and connected via control lines to the control circuit module (SMl to SMn, ZSM) connected to the control switch (49). 11, lubrication system according to any one of items 8 to 10, characterized in that each control circuit module (SMl to SMn) dor electronic central control unit (10) consists of a flip-flop (53) and an AND gate (54) whose first input is connected the control switch (49) and whose second input is connected to the output (Q) of the flip-flop (53) that dor the output (Q) 12 * lubrication system according to one of the points I ₁ 2 and 0 to 11, characterized in that the AND gate (54) downstream driver circuit (55) consists of a Ringz ^ ihler (56), which optionally an amplifier circuit (57) is connected downstream , consists of whose outputs each one via a control line to one of the electro-hydraulic control valves (SVl to SVn) of each connected oil distribution system (OVl to OVn) is connected. / 13, characterized in that each electronic control circuit module (SMl to SMn) in the control line leading from the control switch (49) to the AND gate (54) a timer (ZD), which has inter alia an integrator stage (65), in the via a supply line (47) continuously electrical signals driven by an egg crankshaft (I) 'the internal combustion engine tachometer generator (40) are fed, wherein the timing element (ZD) (for speed or machine speed-dependent control of the duration of the lubricating line enable the respectively connected Glvorteilersystemc OVI to OVn) after determining the start of release by activating the control switch (49), " 13. Lubricating systems according to any one of items 1, 3 and 8 to 11, characterized in that at the output of the AND gate (54) via a control line, the only servo valve (SV) of each connected ülverteilorsystems (OV to OVn) and ,, about a first control input (58), the driver circuit (55) are connected, wherein the driver circuit (55) for driving the servomotor (30). is used and connected via a control line with this and via another control line to the sensor of the respective connected Ölvertoilersystems « 14. Lubricating system according to any one of items 1 to 4 and 8 to 15. Lubricating system according to any one of items 1 to 4 and 8 to. 13, characterized in that each electronic control circuit module (SiU to SMn) in the control line leading from the control switch (49) to the AND gate (54) a first Zoitglied (ZB) and a second Zeitgliod (ZD), each including a Integrator stage (65 or 71) grouted, in which via leads (47) continuously electrical signals from a driven by the crankshaft (1) of the internal combustion engine tachogenerator (48) are fed, wherein the first .Zeitglied (ZB) for speed or, machine onlaufgeschwindigkeitsabhängigen control of a delayed triggering of the lubrication line release of each connected oil distribution system (OVl to OVn) and the second timer (ZD) for speed or * 16 »Lubricating system according to one of the points 8 to 15, characterized in that in the electronic central control unit (10) except the control circuit modules (SMl to SfIn), a control circuit for controlling one of a high pressure pump (24), a pressure control valve (25), this driving actuator (26) and a Drehwinkelabnehmer (44) existing lubricating oil pressure generator (7) is also continuously 'electrical signals from the crankshaft (1) driven tachogenerator (4) for speed or machine speed proportional control of the lubricating oil pressure has been supplied 17, "lubrication system according to item 1, characterized in that the circuit elements of the electronic central control unit (10) are arranged mainly on a single circuit board and together with this forming an externally prefabricated plug-in module, are in a switch box can be used and, if required in its entirety exchangeable is' Hierau ^ SLSeiten Drawings