DE2227928A1 - PISTON MACHINE - Google Patents

Description

DIPL.-ING. O. R. KRETZSCHMAR

2 HAMBURG 1 AT STROHHAUSE 34. PATENT ADVERTISEMENT «% <*« »** λ λα RU F Ο411 / 24 67 43

Motoren-JPorschungs-KG K / St / hp. - 4079

Franke-Motoren 5 June 1972

H a m b u r er

Attorney file: 4079

Piston engine

The invention relates to a piston machine, which in a Cylinder guided piston is connected to a shaft via a slot guide.

Such piston machines are known, for example, with crank mechanisms, pistons working against one another with their piston rods are joined together at a central part in which a perpendicular to the piston rods extending Slot is located. A crank on the input or output shaft engages in this.

In an advantageous embodiment, the invention relates to a machine in which a piston rod with a Crank drive is connected.

The invention also relates to a piston machine in the embodiment as a rotary piston machine, with at least one cylinder assembly rotatably mounted in.einem housing on a shaft and guide pieces are arranged on housing walls eccentrically with respect to the shaft, on which guide washers rotatably provided with guide rods which pass through the cylinder and on which a piston is arranged, which is non-rotatably connected to the guide pulleys.

" ^λ " 309851/0184

ACCOUNTS! DRE5DNER BANK, ACCOUNT NO. 9229371 - POST CHECK HAMBURG NO. 193766

For the rods, longitudinal slots are provided in the cylinder wall parallel to the axis of the cylinder Corresponds to the stroke of the piston in the cylinder,

The invention also relates to a rotary piston machine in which a slot guide for a piston within a piston a crank of the input or output shaft arranged stone is arranged. Such a design is for a robust and compact structure advantageous.

In another embodiment, the invention is based on a rotary piston machine in which the cylinder is guided on a central shaft and the piston on one of the housing facing side has a slot for a stone, which is arranged eccentrically to the shaft on the housing.

If a piston machine is assumed, it is understood that the invention relates to a driven machine in the Type of compressor or a prime mover that works as a motor and under which ignition conditions operating influences to have. In the case of a compressor, the output can be controlled by changing the stroke.

In the preferred embodiment, the invention relates to one Motor with ignition or injection devices that are fixed to the housing,

In these known designs, the machine is related to its stroke or dead centers and when designed as a motor to one Ignition or injection arrangement fixed, inclined Guides are advantageous in terms of overcoming dead centers, but only allow the same working method and always with the same stroke,

The invention is based on the object of improving a piston machine of the type mentioned above in that the stroke

309851 / 01Ä *

if necessary, it can be easily changed during operation for power control or also when the machine is shut down.

This object is achieved in that this Slot guide is changeable or adjustable in its inclination with respect to the direction of movement of the piston and as a function the inclination provides for a change in stroke and a displacement of the dead center or the dead centers of the piston, Shifting a dead center also has the advantage that ignition or injection in an engine with respect to the dead center, it can be achieved that a higher pressure is created in a smaller space and furthermore a longer effect of the so-called mean working pressure is achieved. This gives a higher torque accessible,

With particular advantage, the slot guide has with respect to Working direction a flattest position at an angle of 5 ° with respect to the perpendicular to the working direction and preferably adjustability between 12 and 22 ° is provided.

This results in a change in the inclination of the slot guide or an equivalent for the slot guide at the same time a change in the piston speed in relation to the cylinder, which also creates special conditions, in particular in connection with the shift of the dead center and a change in the ignition or injection time in relation to Cylinder and piston position result.

If one speaks of an inclination or an inclined inclination, then it is an increasing inclination of the slot

309861/0184

guidance from the perpendicular to the piston axis, in which a Inclination is not yet present, in ÜLchtung parallel to Piston axis.

With an increasing inclination of the slot or the food means of the piston in relation to the cylinder becomes an increasing Compression, especially in the area of the dead centers, achieved.

The adjustability of the variables mentioned is considerable Significance, especially in times when fuels with different properties are supplied. The so-called According to the prevailing opinion, knock resistance results from that a special pressure development occurs during ignition. However, the present invention provides an internal combustion engine an engine that by changing the compression, i.e. the position of the smallest cylinder space in relation to the Shaft rotation and also in relation to ignition or injection, and through the piston movement in relation to the cylinder chamber A corresponding effect is achieved, so that the invention can achieve the knock resistance by adapting the engine.

In the invention results in a motor by the displacement the piston guide in an angular range preferably from 10 to 30 to the piston movement the possibility of an adjustment from pre-ignition at 30 to retarded at 10 inclination. Through setting options during operation of the The machine can be set to a retarded ignition at start-up, while switching to advanced ignition mode at high engine speed can be. In the dependency according to the invention, this also has the advantage that in the event of a pre-ignition under start-up conditions an increased stroke takes place, while in operation a smaller stroke in connection with a retarded ignition is set, whereby an economical operation is achieved.

309851/0184

When the piston machine is designed as a compressor, a change in the stroke size results in a change in performance, which can thus be carried out steplessly and with an inherently easier dead center overcoming the possibility for controllable compressors offers considerable performance.

In one embodiment of the machine "with at least one on A piston driven by a piston rod provides a preferred embodiment that on the piston rod, if necessary in the area of a connection of piston rods of several pistons assigned to one another for an input or output shaft, one Slot guide is arranged adjustable, in which a stone is guided on a crank of the input or output shaft. Here a conventional boxer or in-line engine can also be provided. However, this embodiment can also be arranged concentrically Multi-piston machines, in which case a plurality of slot guides arranged at an appropriate angle to one another can then be provided. For example, in this context, reference is made to DAS 1 000.

The connection arrangement expediently has an internally cylindrical one Recess in which adjustable an outer cylindrical Element is provided which is diametrically penetrated by the slot guide.

According to a further advantageous embodiment, there are between the outer cylindrical element and the inner cylindrical recess Adjusting means arranged to vary the inclination of the slot with respect to piston rods. There will also be a Design with hydraulic control means included.

In the above-mentioned embodiment as a rotary piston machine, a particularly simple embodiment of the invention provides that the guide pieces act as rotary bearings for slotted discs are executed, in which stones are transversely movable, on which the iuhrungsstangen are guided, and that in the Stones miter disks are rotatably arranged, on which

309851/0164

the guide rods are fixed, with adjustment means are provided between the stones and the guide washers. This makes it easy to change the guidance of the piston in relation to the cylinder, using stable means can be. The adjustment means are preferably mechanical executed and designed as a draw wedge gear, its Adjusting means are mounted on the housing. But it also includes the fact that cylinder-like recesses between the stones and the guide disks and hydraulic control means can be fed alternately into different sections of the recesses.

An essential embodiment of the invention is that the slot guide is resiliently supported at an incline and automatically changes their inclination in relation to the resulting pressure when starting up or under load conditions. In this way, a machine is achieved which, for example, automatically adjusts the increased load when starting up records. This is advantageous in compressors in order to overcome the dynamic pressure that occurs, but especially in prime movers or motors of greater importance. The automatically adjusting incline has the advantage that the pressure times and pressures can be adapted to a fuel to be ignited. The inclination goes beyond a certain one Degree of increasing load back towards zero. In the case of fuels with short combustion, the Inclination a high pressure peak can be avoided and thus defused. At the same time, however, the rise remains unchanged or a larger angle of inclination of the slot guide with simultaneous downward movement of the piston the high Maintain working pressure longer, so that better fuel economy is achieved. The springs are expediently dimensioned in such a way that that they only take effect during pressure peaks.

Basically, with an automatic adjustment of the inclination or an adjustment of the same achieves that with a greater inclination a higher pressure and at the same time a longer one Printing time is achieved. With a so-called short burn

309851/018 ^

there is accordingly a higher pressure peak, which at a resilient arrangement of the slot guide or the corresponding arrangement briefly the inclination to the vertical withdraws with respect to the longitudinal axis of the piston, but then immediately rises again to a correspondingly set pressure level. Fuels such as gasoline without a high octane number, but in particular also oxyhydrogen, can therefore be used. Included It is also the case that mechanical adjustment means are provided with springs, which reset the slot guides allow in the sense of a change in their direction to the horizontal under the pressure in the work space.

If the machine is intended as a compressor, the invention creates a control for the pressure-dependent temperature, so that an adaptation to a consistently high output is possible depending on the counter pressure,

The invention relates to a machine as a steam engine. Included the invention results in an immediate utilization of pressure from top dead center to bottom dead center,

In one embodiment, in which a slot guide for one inside the piston. a crank of the and output shaft arranged Stejn is provided, sees a An advantageous embodiment suggests that this slot guide is implemented in a disc with an outer cylindrical surface is ,, which is arranged in a corresponding recess, and that adjusting means are arranged in the piston in order to keep the slot guide in an inclined position so that it can be adjusted to a limited extent, If other adjustment means can also be used, the arrangement with springs for an automatic one is used in this embodiment Setting the incline preferred.

If in the rest of the adjustment means mechanical and hydraulic Art are mentioned, reference is also made to the fact that electromagnetic adjustment means can also be used,

3 Q 9 8 5 1/01 8 A

The invention is illustrated below with the aid of exemplary embodiments explained, which are shown in the drawing, In the drawing show:

Pig, 1: a schematic view of a cylinder-piston machine with two opposing cylinder-piston arrangements,

Pig, Fig. 2: a partial view of another embodiment of the adjustment means arrangement for a machine after Pig, 1, partly in section and on an enlarged scale,

Pig, 3: a side view of a rotary piston engine on average,

Pig, h ; a section along the line IV - IV in Fig. 3,

FIG. 5J shows a section along the line V - V in FIG. 3,

Pig, 6: a partial representation corresponding to Pig, 4 from Pig, 3, but in section along the line VI - VI in Fig. 3> in a different operating position than in Fig. 3,

Pig, 7! a representation of different movement curves of the piston in the cylinder accordingly the heart curve described by the center of the piston and depending on a setting the piston guide in relation to the cylinder,

Pig, 8; a cross section through a rotary piston machine to explain a particular embodiment,

In Pig, 1 a machine design is shown in which two cylinders 2, 3 opposite one another in a fixed housing 1 are arranged, with open cylinder ends 4, 5

309851/0184

arder are facing. The remote ends are designed as cylinder heads 6, 7 with intake valves 8, 9 and exhaust valves 10, 11 "The example zei.Tt an engine in which the valve tappet '.reaeifrter in ^{unspecified;..} Are .7eise zwansrsresteuert between the Ventilctößeln is an ignition device is arranged in each case, 2s of course, aa ^f s a compressor can be designed accordingly.

In the cylinders 2, 3 pistons 12, 15 are guided on piston rods Ma-, 15 which are aligned with one another and end at a connecting arrangement 16 which has an internally cylindrical recess 1? ' having. An externally cylindrical element 18, which has a diametrically eixie slot guide 19, is arranged in this recess to be angularly adjustable. Only adjusting means indicated schematically at 20 serve to change and fix the position of rotation of the element 18 in the recess 17. Such means can for example consist in a dumbbell section of the outer cylindrical element 18 having a toothing on the circumference and in that a pinion which is mounted on the connecting arrangement 16 engages in this toothing. There is also the possibility of guiding a shaft tangentially to the externally cylindrical element 18 through the connecting arrangement 16, with a worm arranged on it engaging in a worm toothing on the casing of the element. Further possibilities with bevel gears et £. Hydraulic drives are also possible, in particular if a setting between two settings is intended. In this context, electrical actuation is also provided which, for example, works with lifting magnets and which effects the setting in end positions.

In FIG. 1 the slotted guide 19, which can be adjusted in its inclined position, is perpendicular to the direction of the piston rods 1 ^ -, 15 shown. It goes without saying that this slot guide is set at an angle during operation, the inclination then being changeable is.

309851/0104

- 9 -

Fin ;. 1 ζ ei.et the middle position to ^ ef ·. appropriate, ^v a run in different directions by different "XinStellungen the skew to it: iüf-: licben This provides the feature of a Drehrichtun ^ sunioteuerung the fascine shown as a function of the setting of the slot guide, 19 from that shown in Fig 1, r.. / middle position.

A special feature of the invention is that ^ i For example, a setting with the interposition of springs is provided for final settings, so that ... under give in to the load on the machine can and thus leads to a performance request.

Such springs are designed with a strength that they absorb the normal working pressure and only give way in internal combustion engines in the event of the occurrence of pressure peaks.

A stone 1Uf is guided in the slot guide, in which rotatable the crank pin 115 of a crank shaft of the machine is relocated. The crank pin he. 115 describes the rotation the center of the crankshaft has a length of 1Vd.

FIG. 2 shows a corresponding hydraulic adjustment of the slot guide 19 according to FIG. 1. Corresponding parts marked with the same reference numbers.

The outer cylindrical element 1ö protrudes into the already mentioned Recess 1? the connection arrangement 1b. Inside the recess, i.e., having a depth less than this recess, the outer cylindrical member 18 has at a peripheral portion an outwardly open so-called adjustment chamber 111, into which a web 112, engages on the inside of the connecting arrangement 16 and divides the adjustment chamber 111. Through the

_ ₁₀ _ 309851/0184

, SÄD OFUGlNAL

2227926

^ in ^ trllriittel 20 cause two lines 12 ?, 12 o "which are tunsteuerbar within the adjusting through valve arrangements and by means of which alternatively a hydraulic .Steuermittel in the two sections of Verstcllkainmer eini ^':; YOURSELFSOFTWAREUPDAT E is to the relative displacement between the externally cylindrical element 18 and the inner cylindrical connection arrangement ¹ 16.

Such hydraulic adjustments can also be provided in other machine designs. In Figure 2 the slot guide 19 is already very Hp; to the axis of the Ivolbenstan-. ¹ TGIi Ui-, 15 arranged,

l''i / t. 3 to 6 show a rotary piston machine with an outer fixed housing 21, in the label plates 22, aertricch in implementation 2 / +, 25 and by means of Y / roller bearings 26, 2? eire input or output shaft with the sections 2ö is arranged. In the example, this input or drive shaft is designed as a hollow shaft, including the supply of coolant or lubricant if necessary. At the sections. 2o, 29 of the input or output swells is a cylinder assembly 30 mitti; ⁷ : stored.-This cylinder assembly. 30 is thus rotatable within the inner cylindrical jacket 31 of the middle part 52 of the housing, as shown in FIG. Seals 35, 5b are provided in the open ends 33 » 3k of the cylinder assembly, which rub against the wall of the central part and seal the cylinder. At 57 an ignition 1st "or Injektionseinriehtung provided while may be arranged aiid for the feed slots 33, 58 ^f in the Zylinderv /, where open to the end faces of the cylinder space 99" 100 feedable for these slots also by the Eohlwellenabselmitte 28, 29 are.

In Fig. 3, the outlet is as extending in Ümfangsriehtung Slot 101 designated by the circulation of the cylinder assembly is controlled * This slot extends, according to Fir. S over the route indicated by the double arrow 102 i

309851 / 018A

- 11 -

■ - ■ - · ■ · bad original

is given if with respect to Fi, ", '. 5 a direction of rotation is opposite takes place in the original sense.

If slots 38, 3 & ^{1 were} not provided for the charging, an inlet slot laterally offset with respect to the outlet slot 101 and also shifted in the circumferential direction could be arranged according to the dashed double arrow 105 (FIG. 5).

The passages 2 ^ ·, 25 are surrounded by eccentric bearing lugs towards the cylinder assembly, which form guide pieces ZfI, l \ Z with their outer cylindrical circumferential surfaces, which run eccentrically to shaft sections 28, 29. Of the outer cylindrical circumferential sections of these guide pieces, rolling bearing means ί | 4, W? arranged, which are optionally designed as ball or needle bearings. On the outer races of these rolling bearing means, hollow cylindrical recesses 39, * fO ^ ⁿ disks are rotatably mounted with low friction. These disks are guided in the axial direction.

In these disks 46, W? the slot guides are arranged inwards, ie towards the cylinder assembly 30. The straight, linear wall parts of the slot guides are designated with 96, 97, for example, with respect to the disk 47 , which can also be seen in FIGS. 4 and 6. These slot guides do not appear to go through the pane.

In these slot guides , stones 117, 118 are guided, which are delimited on the outside and with respect to FIGS. 3 and 4 above and below by parallel wall parts 119, 120, as far as they engage in the slot guides with the wall parts 96, 97. The outer portion 121 is in contrast cylindrical ausgebil det. These stones 117, 118 have cylindrical recesses 123, 124 on the inside, in which cylindrical guide disks 125, 126 are rotatably mounted. These guide disks 125, 126 are thus provided eccentrically to the sections 28, 29 of the shaft. ^ 309851/0184

Guide rods 48, 49 are also arranged in the guide disks, which pass through longitudinal slots in the wall of the cylinder 30 corresponding to the cylinder stroke and with the piston 107 are connected. These longitudinal slots are designated in Pig, 5 with 50, 51, the length of these longitudinal slots 50, 51 results from the piston stroke in the cylinder,

The piston ring groups 105 »106, which are only shown schematically, are arranged in such a way that the longitudinal slots are always between the
Piston ring groups are arranged. Correspondingly, the eccentricity of the disks 4l, 42 and guide disks is matched in relation to the piston stroke,

The guide disks 125, 126 are furthermore provided with central slot-shaped openings 54, 55 for the passage of the shaft sections 28, 29, as shown with reference to the opening 54 in Pig, 4. These slot-shaped openings 54, -55 move when
Operation of the machine in the shaft sections 28, 28 back and forth
here.

Adjusting devices are provided between the stones 117, 118 on the one hand and the guide disks 125, 126 on the other hand in order to adjust the rotational setting of the guide disks 125, 126
Stone 117, 118 to change. Thus, if the cylinder piston assembly is viewed as stationary in one position, the disks 46, 47 will be aligned with the slot guides passed through the
Walls 96, 97 are limited to the rolling bearing means 44, 45 rotated,

The setting device is only shown on the right-hand side of Pig, 3, but also, for example, in Pig, 4 and 6. It goes without saying that a corresponding arrangement in Pig, 3 left
is also provided.

If there is an eccentricity between the guide disks 125,
126 on the one hand and the guide pieces 4l, 42 on the other hand-s

- 13 -

309851/0184

the stones 117, 11 move sideways into the slot guides.

The guide washers 125, 126, the. through the bars Zfö, A-9 with each other and with the piston or in the direction of rotation via the Langsscfclitze 50, 51 in connection with the cylinder stand, keep their aligned position.

According to FIGS. 3 and 6, the setting means are provided in practice - only on the right with reference to FIG. 3, but also on the left in FIG. 3 - coupled with each other and as a draw key gear executed.

An adjusting ring 129 of the draw wedge gear is provided on the cylindrical section 121 of the stones 117, 11O so as to be axially displaceable. This adjustment ring has helically shaped wedge sections 130, 131, which are directed inwards and each have two step groups, of which a step group 132, 133 engages in corresponding, helically wound slots 13 ^> 135 of the stones 117, 118 and an inwardly projecting group of steps 136, 137 engages in corresponding slots 136 in the guide disks 125, 126. The slots 13Z _1. , I35, I38, which are of course also provided diametrically, have an incline with respect to one another. For example, the slots 13A in the stone can run axially and the slots 138, on the other hand, are wound in a helical shape with respect to the axial direction. The step groups 132, 133 on the one hand and 13b, 137 on the other hand run correspondingly. This is a simple and well-known embodiment of a draw wedge gear, by means of which the stones 117, II0 on the one hand and guide disks 125, 12b on the other hand can be adjusted relative to one another when the adjusting ring 129, on which a fork can engage on the outside, as shown schematically in FIG. 6, is adjusted in axial sighting.

_ _lk _ 309851/0184

Fir :, ό zei ^r et the very · already described v.gst RECOVERY the Shiite ζ guide with the iandteilen 96, 97, so that the stone .. 117 is inclined while -the Guide e ^ sscheibe 125 slot-shaped with its opening 51+ and the guide rods 1 + 8, 1 + 9 remain in the originally aligned position.

From Fig. 6, the Ziehkeilanordmmg is further seen with reference with respect to the offset position of the stage groups and slots in this view, as compared to FIG. K rotation is achieved.

Xn Fig. 6 a fork designated in the satchel with 1}; 9 is arranged, whose AmEHi-G, Ui-I in a guide slot of the adjusting end 129 intervene. Since this adjusting ring rotates according to the eccentricity of the guide pieces 1 + 1, 1 + 2, For example, the fork is outside the cylindrical housing or the wall part 52 by a parallel to / to the shaft 28, 29 directional storage 11 + 2 pivotable, the Ga-, beiarme 11 + 0, U + 1 have such a length that they are always in Area of the moving adjusting ring 129 remain. It goes without saying that the storage 11 + 2 is appropriate consists of an axis parallel to the shaft on which the fork 1 ;; 9 can be moved so that the fork arms 11 + 0, 11 + 1 always remain perpendicular to the axis of the machine. Other joint means are possible.

Furthermore, Fig. 6 shows the fork arrangement only schematically, v / eil of course also within the housing 21 or 32 the corresponding Adjusting means can be arranged.

7 explains the effect of the invention on a piston engine by means of heart curves, which are described, for example, from the center of the piston during operation. It shows Fig. 7 shows a solution that shows the change in inclination of the piston

- 15 - 309851/0184

Slot guide clarified. With a horizontal slot or with a rod guide of the piston with a fixed guide piece with a vertical axis with respect to the eccentricity this would result in a heart curve concentric to the vertical center axis 61, denoted by 62 and is shown. The top dead center is at 6J in the zenith of the circumference .64 · and the two lower jaws or sections 65, 66 of the curve of the heart have the same shape. The distance between horizontal tangents at the top and bottom of this heart curve corresponds to the lifting height, the lower reversal point being through the lower heart indentation is determined.

In Fig. 7 there are three further heart curves with inclination adjustments drawn for the piston slot guide in relation to the cylinder. The heart curve 67 corresponds to an inclination adjustment of 15 and has a top dead center 68. The heart curve 69 corresponds an inclination adjustment of 22.5 ° and has a top dead center at 70 · The heart curve 71 corresponds to an inclination adjustment of 30 and has a top dead center at 72. If if you place horizontal tangents on the heart curves above and below, it can be seen that the top dead center with increasing angular inclination migrates to the right, with the stroke then following in particular through the bulging of the right section of the heart curve enlarged below. It can also be seen that the ignition point is brought forward in top dead center and under certain circumstances even a redensification takes place.

This demonstrates the advantages of adjusting the oblique guidance of the piston.

8 shows a rotary piston machine with an outer housing 73 and a stator 7. The housing has an inner cylindrical running surface 75 in which a cylinder assembly 76 can be rotated. This cylinder assembly has, for example, a cylinder 77 t in which a piston 78 is movable. This piston is driven by a drive shaft 79, in particular in the execution

309851/0184

rurr as a crank, interspersed. The circle oO indicates an outer boundary of the cure for sleep. A stone 1 is arranged on this crank, which is guided in an inclined slot guide 62. This slot guide is located in a disk 63 wit an outer cylindrical surface which is rotatably arranged in a Au on e hm un "Sif in the interior of the piston ..! ■ ?. i _; .oli "en themselves are compression springs 65> ό6 ar;>: arranged, which on the one hand ±? a piston are supported on V / iderlagerr Ö7, c8 and on the other hand engage in the recess and press on step surfaces 6 °, 90 of the disk 62 to thus yielding in a given orientation.

In the illustrated embodiment of a motor, the other parts of which are not described in detail, a so-called inclined slot guide is provided within the piston from the start, which is supported by the spring means 8.5, 86. It goes without saying that such spring means can also be arranged in other embodiments, in particular also in connection with setting means, which are denoted by 20 in FIG. 1 and can have a configuration described there. The arrangement of the springs ü5> 86 can be provided as the sole arrangement for changing the inclination ¹ or in addition to setting means in order to achieve an operational adjustment. By increasing the inclined position, you can then work with a lower octane number without knocking noises. This is particularly important for the currently planned adjustment of the fuels.

'If feathers are arranged alone, one assumes one like in Fig. 8 inclined position of the slot guide of from the outset, so that the springs 85, 66 only change allow the slot guide 62 at pressure peaks. The change in the inclination is limited, for example by stops, if necessary in the disk 63 a concentric edge recess 113 is arranged, which only extends over a small ankle area, and in which

_ _ 309851/0184

BAD ORJßlNAL

an Armenian 122 rart, who is a> - olbcr attaches error or protrudes on the guide for the disc and into the recess ok .

Only for the sake of completeness ^:: ndi ^r "ur ^r ; the one in L ¹ Ir:. C; -ez ^ i'-ter: Execute P ¹ Si or;?, V / ere noted that;?. 91, ⁽ - ' 2 Ab'-asausl-'sce s will, 93, ^ h air entries represent, for example, for LdLe be " ¹ , ο tor en or ■" enzinrrernischeincrittees for a CTTC-i.otcr, with further the ~ e: .ioirte execution ^ un ^ sfor:.: special / '"uhliuven provides,"'.'eiche ir. vcrlio "erder,! '' all but not ni'.hcr described ver? .en. Lei 9: 3 is a ^T \ ina : Ritzdüse provided by the Ziind-'rorzc.

In the case of the ^r - "an _r °" s er ". ^RX heard ivrehiolbenr / aschine, in the case of".'eicher the -jvlinder is guided on a central ./eil ~ e and the piston on a side facing the ueh-juse a slot for a stone which is arranged eccentrically to ./eile on the housing, as it is already'in the French patent 1 321 O ^r / 1 described, the erfindunrsreernäise embodiment provides that the slot is provided in a disc, which for The piston axis is adjustable and that adjusting means are provided for adjusting the - egg run. "Of the slots in the piston.

FIG. 3 shows a solution that operates as a two-stroke engine, while FIG. 8 shows a rotary piston engine that operates as a four-stroke engine is operable.

- 18 -

3Q985i / 01dÄ

BAD OROMAL

Claims (2)

Claims Piston machine, the piston of which is guided in a cylinder is connected to a shaft via a slot guide, characterized in that this slot guide (19 »82; 96, 97) in their inclination in relation to the direction of movement of the piston (12, 13; 84, 107) is changeable and / or adjustable and depending on the inclination a change in stroke and a displacement of the dead center of the piston is provided. ' 2. Machine according to claim 1, characterized in that the slot guide (19, 82; 96, 97) with respect to the working direction has a flattest position at an angle of 5 ° with respect to the perpendicular to the working direction and preferably
see is. preferably an adjustability between 12 and 22 is preferred Machine according to claim 1 or 2, wherein a piston rod is connected to a crank drive, characterized in that that on the piston rod (14, 15) several mutually assigned pistons (12, 13) for an input or output shaft Slot guide (19) is arranged adjustable, in which a stone (114) on a crank (115) of the input or output shaft intervenes. _ 3098B1 / 018A -5227928 4, machine according to claim 3, characterized in that the Piston rod or the connecting arrangement (16) has an inner cylindrical recess (17) in which it can be adjusted an outer cylindrical element (18) is provided, which is diametrically penetrated by the slot guide (19). 5, machine according to claim 3 or 4, characterized in that between the outer cylindrical element and the inner cylindrical Recess adjusting means (20, 111, 112; 127, 128) are arranged to the inclination of the slot in relation to change to piston rods, 6, machine according to claim 5, characterized in that the Adjusting means comprises an adjustment chamber (111) and a web (112) protruding into this, and a hydraulic control means can optionally be introduced into the sections of the adjustment chamber on both sides, 7, machine according to claim 1 or 2 designed as a rotary piston machine, wherein at least one cylinder assembly is rotatably mounted in a housing on a shaft and on Housing walls are arranged eccentrically with respect to the shaft guide pieces, on which guide disks with guide rods are rotatably provided, which pass through the cylinder and on which a piston is arranged, the non-rotatable is connected to the guide disks, characterized in that the guide pieces (4l, 42) act as pivot bearings for Discs (46, 47) are designed with slot guides (96, 97) in which stones (117, 118) are transversely movable dene "n the guide rods (48, 49) are guided, and that guide disks (125, 126) are rotatably arranged in the stones on which the guide rods (48, 49) are fixed, adjusting means (129 to 138) being provided between the stones (117, 118) and the guide discs (125, 126), 8, Maachine according to claim 7, characterized in that this 309851/0104 Adjustment means carried out mechanically and as a draw key gear are formed, the adjusting means (129, 139) are mounted on the housing, 9t machine according to claim 7, characterized in that cylinder-like Recesses are provided between the stones (117, 118) and the guide disks (125, 126) and hydraulic control means can be fed alternately into different sections of the recesses, 10, machine according to one of claims 1 to 5 »7 and 8, characterized characterized in that the slot guide is resiliently supported obliquely and in relation to the resulting Pressure automatically changes its inclination when starting up or under load conditions, 11, machine according to claim 10, characterized in that a change with increasing pressure in the working space in the sense of a Reduction of the inclination is provided, 12, machine according to one of claims 5 and 7 to 9, characterized in that the adjusting means are provided with springs are which a resetting of the slot guides in the sense of a change in their direction to the HorizontalefPönter dem Allow pressure in the work space 13, machine according to claim 7, characterized by the arrangement of springs between the stones (117, Il8) on the one hand and the guide washers (125, 126) on the other hand, 14, A machine according to any one of claims 1, 2, 10 and 11, in the embodiment as a rotary piston machine in which a slot guide for Ahen arranged on a crank of the drive or output shaft stone is arranged within a piston, characterized in that said slotted guide ( 82) in a disc (83) with an outer cylindrical surface 309851/0184 is guided, which is arranged in a corresponding recess (84), and that in the piston adjusting means (85, 86; 113, 122) are arranged, which hold the slot guide in an inclined position so that it can be adjusted to a limited extent. 15t machine according to claim 14, characterized in that the displacement-limiting stop disposed (122) as adjusting springs _(85? 86) in conjunction with one, 16, machine according to one of claims 1, 2, 9, 10, 11 as a rotary piston machine, in which the cylinder is guided on a central shaft and the piston on a side facing the housing has a slot for a stone, which is eccentric to the shaft on Housing is arranged, characterized in that the slot is provided in a disc which is adjustable to the Koibenachse, and that adjusting means are provided for adjusting the inclination of the slots in the piston _c 17t machine according to one of claims 1 to 16, characterized by being designed as a compressor, in which, in a manner known per se, a control of the pressure medium supply and discharge is provided, 18, machine according to one of claims 1 to 16, characterized by being designed as a motor with an ignition or injection arrangement, 309851/0184