JPH05505224A - Rotary piston internal combustion engine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Rotary piston internal combustion engine The present invention includes a cylindrical casing and a rotor that rotates at a constant speed inside the casing. and a plurality of pistons arranged at an angle to each other, the pistons being arranged at an angle to each other. protrudes in the radial direction beyond a boss that rotates concentrically at a non-uniform speed with respect to the motor, and enters the internal working chamber of the rotor and at least one crank drive The working chamber is connected to the rotor and has two working chambers facing each other and an outer wall on the rotor side. The piston is defined by the end face portion of the Inside the rotary piston mold, which is sealed against the rotor in both the direction and the axis. It concerns fuel engines.

This type of rotary piston internal combustion engine operates on the cat and mouse principle. In this case, a working chamber and a partial area of the working chamber partitioned by a piston are defined. shall be hermetically sealed from each other. Work separated by pistons In order to seal the partial areas of the chamber together, the working chamber is fitted in the outward direction by the inner surface of the casing. In rotary piston internal combustion engines, the end surface of the piston is and an elastic one on the circumferential surface that acts as a thrust packing or radial packing. It is known to arrange a packing plate (U.S. Pat. No. 3,779,215). . The packing plate placed on the end side of the piston has its end placed on the curved surface. It hits the narrow side of the boss axis side of the packing plate. on the inner surface of the casing at high speed. The mounting of the packing plate, which is arranged on a rotating surface, is subject to tolerances and wear due to wear. Therefore, the gap between the packing plates that abut each other becomes gradually larger during operation. So As a result, the engine's operating efficiency decreases over time. Additionally, one of the ribs The working chambers that are separated from each other are therefore separated by an axis located on the partially cylindrical inner surface of the rib. They are sealed together by parallel packing plates. boss made of light metal To protect against wear, the boss faces are equipped with a wear-resistant coating. .

The object of the present invention is to be able to seal the space between one work chamber for a long period of time to prevent wear. The purpose of the present invention is to provide a rotary piston internal combustion engine of the type mentioned at the beginning. Ru.

In order to solve this problem, the present invention proposes the configuration described in claim 1 or 2. It is something that Further advantageous developments of the invention are apparent from the subordination.

The technical idea of the present invention is that two partial areas of one working room or adjacent to each other The working chambers of the seals should be sealed from each other as follows: The purpose is to seal it so as not to impair its effectiveness. This means that one workroom The sealing of the two sub-regions is achieved by the following configuration and is immediately Each piston has an outer groove extending parallel to the axis and opening in the radial direction; Extending radially and axially at the radially outer end in the opposite direction from the end face It shall have two side grooves that are open to the outside, and a sliding and sealing surface in the outer groove. The forming longitudinal side faces of the spring against the partially cylindrical inner surface of the outer wall in the radial direction. A vertical packing plate that is in contact with each other and acts as a radial packing. A long ceramic packing plate is arranged in each side groove with a sliding and sealing surface. In the axial direction, the vertical side surface forming the A packing plate that comes into contact with the action of a spring and acts as a thrust packing. This is achieved by arranging vertically elongated ceramic packing plates.

In this case, the packing plates are mutually planar at their opposite ends. It is advantageous that the two overlap in such a way that they overlap.

As an alternative to the above configuration, and for sealing two adjacent work chambers together, proposes the following configuration as an advantageous configuration of the present invention, namely, the boss is located in the area between the two pistons, extending parallel to the axis and opening in the radial direction. one outer groove each extending radially and an outer groove at the radially outer end; and a side groove that is open in the axial direction in the opposite direction to the end face. , in the side groove, the longitudinal side surface forming the sliding and sealing surface is aligned with the rib in the radial direction. It is a packing plate that is in contact with the inner surface of two partially cylindrical parts by the action of a spring. A vertically long ceramic packing plate is arranged to act as a radial packing. In the side groove, the vertical side surface forming the sliding/sealing surface is located next to the side groove in the axial direction. It is a packing plate that is in contact with the inner surface of the contacting end surface by the action of a spring. A vertically long ceramic packing plate is placed that acts as a thrust packing. This is a proposal that suggests that In this case, the packing plates are facing each other. Advantageously, the ends overlap each other in plan.

The packing plate placed in the outer groove and the packing plate placed in the attached side groove are A flat surface, preferably a radial surface passing through the axis of rotation of the boss. It serves a purpose. In this case, according to an advantageous embodiment of the invention, an overlapping of the packing plate is provided. A lap plane is parallel to the plane spanned by the packing plate. Patsukin board is Full wall thickness in remaining areas supplemented by half the wall thickness in overlap areas is equal to This can be achieved by simple means such as Can be done. That is, the Basokin plate is made up of two separate plates arranged parallel to each other. Vertical ceramic strips with wide sides abutting each other Consisting of a group of padskin stripes, and with the following in the outer groove or side groove: That is, the free wide faces facing the wide faces on the contact side are connected to each other. The narrow surface that abuts the groove flank facing toward the outside of the groove and is directed toward the outside of the groove, to form a common sliding and sealing surface that abuts against adjacent inner surfaces of the rotor. This is achieved by inserting the seams into the outer grooves or side grooves. this place If so, make the overlamp surface parallel to the surface stretched by the packing plate. Therefore, the following tube-knit configuration is proposed.

That is, the packing stripes arranged in the outer groove are of the same length, and Forming an overlapping surface on the end side and being offset from each other in the longitudinal direction Suggested. On the other hand, the packing stripes placed in the side grooves have different lengths. and forms an overlapping surface on the end side located outward in the radial direction. It is also possible that To achieve sufficient lubrication in the area of sliding and sealing surfaces, The Tsukinstripe has the following cross section on the narrow side that forms the sliding and sealing surface. The punching stripes are formed in a spherical shape as shown in Both are spherically shaped to define a vertical duct that can be biased with W4 oil.

At least one spring with a rectangular cross section is provided between the packing plate and the spring arranged at the bottom of the groove. Advantageously, a filling element of 1 is arranged. Filling made of gray iron The part is configured as an angle part in the overlap area of the packing plate. It is advantageous to have This results in a compressed fuel-air mixture or combustion gas is prevented from flowing through the dark narrow gaps in the overlapping packing plates. will be stopped.

According to another advantageous embodiment of the invention, in the outer groove and in the side groove leading to the outer groove, The packing plates arranged are wedge-shaped and are chamfered and overlap each other. It has end faces that form a pair and are in contact with each other. In this case, it is placed in the side groove The packing plate is bent at the outer end in the radial direction and enters the outer groove. It is advantageous to do so. The spring is configured as a wave spring disposed within the outer groove. The edge of the wave spring on the end face side is aligned with the bending of the packing plate placed in the side groove. It is useful to have it in contact with the inside edge of the cut part. Placed in the outer groove Advantageously, the inclined end face of the packing plate facing towards the groove bottom. Ru.

According to another advantageous embodiment of the invention, the packing plate or packing strip is made of nitrogen. Made of silicone or silicone carbide.

In order to uniformly suppress the packing plate or packing stripe, the spring should be placed at the bottom of the groove. configured as wave springs supported and extending along the length of each groove . Working chambers adjacent to each other or separated by a piston in one working chamber To increase the pressing force of the spring when the pressure in the subregion is different, thus In order to increase the packing action, according to another advantageous embodiment of the invention, a packing plate is provided. is an overpressure prevailing in one of two adjacent working chambers or in one working chamber. Due to the action of the overpressure prevailing in one of the two sub-regions, a It is possible to additionally suppress the groove flanks of the surfaces and/or negative forces.

In order to seal the working chamber against the casing, the end face of the boss should be at least four four, preferably eight, arranged in a polygonal shape concentric with respect to the axis of rotation of the boss. There are vertical grooves that open in the axial direction, and within these grooves, there are sliding and sealing surfaces, respectively. In the axial direction, the longitudinal side surface forming the It is a packing plate that is in contact with each other due to the action of a spring, and is used as a thrust packing. A working longitudinal ceramic packing plate is arranged. under pressure In order to prevent the working gas from escaping along the groove, the The packing plates to be placed are in close contact with the cylindrical bottles at the end side. However, the cylindrical pin is a hole provided in the end face of the boss, which is parallel to the axis that cuts a common groove. inserted into the hole.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows the rotary pin of the present invention in two cut planes that are at an angle to each other. 2 is a longitudinal cross-sectional view of a stone-type internal combustion engine taken along line 1-1 in FIG. 2, Figure 2 is a sectional view taken along line 2-2 in Figure 1, and Figure 3 is a diagram showing the boss of the piston. , Figure 4 is a developed view of the corner area of the piston seal, and Figure 5 is the piston seal. Figure 6 is a vertical cross-sectional view of the boss seal part, Figure 7 is the pin in Figure 3. A diagram showing a piston in a modification of the stone boss, FIG. 8 is an exploded longitudinal sectional view of the piston of FIG. 7 with a packing plate and an end bottle; It is.

The rotary piston internal combustion engine according to the present invention has a cylindrical casing 10. There is. The casing 10 has a radial inlet 1 for the fuel-air mixture or exhaust gases. 4 and an exhaust port 16. Inside the casing 10, there is a rotor that rotates at a constant speed. A controller 18 is provided. Inside the rotor 18, there is a A boss 20 that rotates at a constant speed is arranged. The boss 20 protrudes outward in the radial direction. It is equipped with four wing-shaped pistons 22. The piston 22 is located inside the rotor 18. invades the work chambers 30 provided in the section, and divides these work chambers 30 into two parts. It is divided into regions 30' and 30"°. The volumes of the partial regions 30' and 30'' are It is decreased and increased by the reciprocating rotation of the stone 22. The work chamber 30 is on the rotor 18 side. , a cylindrical outer wall 24 and a cylindrical outer wall 24 extending inwardly from the outer wall 24 in a substantially radial direction. defined by a rib 32 and two end face portions 26 and 28 facing each other. On the boss 20 side, the partially cylindrical shape of the boss 20 disposed between the pistons 22 It is defined by the circumferential surface 12 of.

The fuel supply and exhaust gas discharge inside the rotor 18 are arranged at an angle to each other. This is done by means of a duct 34 which is located and penetrates the outer wall 24. The duct 34 is Partial areas 30', 30'' of the business room 30 are alternately communicated with the intake port 14 and the exhaust port 16. let Fuel drawn in through two intake ports 14 facing each other when opened The air mixture flows between the ends of the piston 22 and the ribs 32 when the piston 22 rotates. It is compressed between walls 36. The addition of the compressed mixture is applied to the casing surface 38. Due to the two spark plugs 40 installed, when the piston 22 is at the dead center, It will be done. The expanded combustion gas drives the piston 22 and ribs 32 separately, and the duct It is discharged to the exhaust port 16 via the port 34.

The relative movement between the piston 22 and the rotor 18 is achieved by pivoting the bolt 42 of the boss 20. Four connecting rods 44 extend through the ribs 32 in the axial direction. It is transmitted to the crank pin 46 of the shaft 48, thereby converting it into a rotational motion. nine The tooth tip 50 connected to the end surface side of the rank shaft 48 is elastically connected to the casing 10. It meshes with the neck of the connected internally toothed heavy electric device 52, and therefore the rotation of the crankshaft 48 is prevented. The rolling motion is converted into a rotational motion of the rotor 18 relative to the casing 10. rotor The rotational movement of casing cover 58 . A driven shaft 62 supported by 60 bearings 54 and 56 transmits power to the power consuming device. It will be done.

The working chamber 30 and its partial areas 30', 30'' are connected to each other and to the casing 10. The opening of the duct 34 is placed in the cylindrical circumferential surface 66 of the rotor 18 in order to provide a tight seal. and is surrounded by a sealing ring 68, while all partial areas of the working chamber 30 are Areas 30' and 30'' are made by Nanamiku Patsukin board 70, 72.74, 76.78 (advantageously consisting of silicon carbide or silicon nitride). Pi Packing plates 70, 72, 7 arranged in the grooves of the stone 22 and the boss 20 4, 76.78 is a wave spring 80 inserted between these packing plates and the groove bottom. ．． 82.84 press against the inner surface facing each of the rotors 18. be done. The pressing force of the wave spring 80°82.84 compresses the fuel-air mixture. and during the expansion of the compressed combustion gases relative to the pressure in the adjacent working chamber. The pressure in the working chamber, which is overpressured throughout, and the pressure in the adjacent partial area 30 The pressure in the partial region 30', which is all overpressured, is increased. child Therefore, the vertical side of the groove bottom side of the packing plate is the groove flank part of the packing plate and the working chamber side. The overpressure is applied through the gap between the two.

Partial areas 30', 30'' of the working chamber 30 are provided with gaskets provided on the piston 22. They are sealed together by plates 70, 72. Therefore, the piston 22 is The peripheral surface 86 on the outer wall 24 side has an outer groove 88 that opens in the radial direction and is parallel to the axis. and a radially extending end face 90 of each end face portion 26,28. It has a side groove 92 that is open in the axial direction. The side grooves 92 extend in the radial direction. It opens into an outer groove 88 at its outer end. Extending parallel to each other and wide Two packing stripes 94. which form a pair and touch each other in the plane. The two packing plates 70, 72 consisting of 96; 98, 100 are connected to the side groove 92. and the outer groove 88 overlap in the communication area. located in the outer groove 88 The packing stripes 94 and 96 shown in FIG. The packing stripes 98, 100 are arranged in the groove 92 on one side. are constructed with different lengths. With this configuration, the side groove 92 and the outer In the communication area of the gutter 88, there are two packing stripes 94 and 96, respectively. Alternatively, 96 and 100 are in close contact with each other at the overlamp surface. in this case The overlap plane is the radial plane spanned by packing plates 70 and 72. Thus, it is oriented parallel to a radial plane passing through the axis of rotation of the boss 20.

Wave spring 80 or 82 and packing stripe 94°96 or 98,100 In between are filling members 102, 104, 1 made of steel and gray cast iron and having a rectangular cross section. 06 is placed. The wave spring 80.82 has an end face with a Patkin strip. Filling section configured as an angle member in the overlap region of the pipe 70.72 It is bent or shortened in length so as to come into contact with the material 104.

As shown in FIG. The stripes 98 and 100 are sliding parts on the rotor inner surface 108 side facing each other. The cross section of the narrow surface 109 forming the hinge surface is formed into a spherical shape, and the inside of the rotor is Together with the surface 108, a vertical duct 110 is defined. This vertical duct 110 is a boss It receives the action of lubricating oil through the lubricating hole 112 provided in the end face 114 of the 20 .

The working chambers 30 that are adjacent to each other have a partially cylindrical peripheral surface 12 and an end surface 11 of the boss 20. They are sealed from each other by packing plates 74 and 76 which are inserted into 4. For this reason, the Each piston 20 is oriented axially and radially between the two pistons 22. one outer groove 116 opening in the direction and two short sides extending in the radial direction. It has a groove 118. The side groove 118 has a radially outer end. It opens into the outer groove 116 and towards the inner surface of the end face portion 26.28. Patsukin The plate 74 is somewhat shorter in its longitudinal direction than the attached outer groove 116, and The end face 120 is chamfered into a wedge shape and faces toward the bottom of the groove. side The packing plate 76 located in the groove 118 is bent and penetrates into the outer groove 116. It's in. Therefore, the packing plate 76 has an inclined end surface 122 that allows the packing plate 76 to It is in contact with the oblique end surface 120 of the control plate 74. The end of the wave spring 84 on the end face side The part is bent so as to contact the inner side of the bent packing plate 76. ing.

The packing plates 72° 76 arranged in the side grooves 92, 118 are arranged in the radial direction. The inner end is inserted into the hole 124 parallel to the axis of the boss end face 1]4. It is in close contact with the end surface of the simple bottle 126. The hole 124 opens in the axial direction. It is also a corner point of a polygonal groove 128 made up of eight longitudinal grooves 130. polygon Inside the groove 128, a vertically long packing plate 78 made of Nanamik is arranged. pa Due to the action of a spring, the mounting plate 78 has its vertical side surface aligned with the adjacent end surface portion 26.28. It is in contact with the inner surface in the axial direction, and the working chamber 30 is connected to the end surface 114 of the boss 20. and sealed against the casing 10. The simple bottle 126 has a side groove 92. 118 and the groove bottoms of the longitudinal grooves 130 and engages with the simple hole 124, resulting in a polygonal The grooves that abut the corner points of the shaped groove 128 are sealed together.

A variation of the embodiment of FIG. 3, illustrated in FIGS. 7 and 8, includes an outer groove 88 and a side groove. The ends of the packing plates 70 and 72 inserted into the grooves 88 and 92 are or 92, the slit hole of the bottle 142 is engaged with. bottle 14 2 is a slope 111E14 that cuts the outer groove 88 and the adjacent side groove 92 in common. 0 is inserted. The bottle 142 may be formed in one piece or in two parts. I can do it. When formed in two parts, both bins or parts define the slit hole. do. As can be seen from FIG. 8, the bottle 142 is flat in the longitudinal direction of the side portion 11E92. having an end surface 144 sloped in rows and generally aligned with the outer edge of the side groove 92; There is.

HD, 1 abstract The present invention is a rotary piston internal combustion engine that operates on the cat and mouse principle. Regarding. This type of internal combustion engine has a working chamber and a piston in the working chamber. The part areas being cut must be hermetically sealed to each other. For this reason, the Each piston (22) has an outer groove extending parallel to the axis and opening in the radial direction. (88), which extends in the radial direction and has a radially outer end opposite to the end surface. It has two side grooves (92) which are axially open in the direction. Outer groove (8 8) Inside, the vertical side surface forming the sliding/sealing surface is the outer wall in the radial direction ( The part that is in contact with the inner surface of the partially cylindrical part 24) by the action of the spring (80) A vertically long seven mink plate (70) that acts as a radial packing. A packing plate (70) is arranged. Furthermore, in each side groove (92), there is a sliding/tight In the axial direction, the vertical side surfaces forming the sealing surface are adjacent to each other in the end surface portions (26, 28> The packing plate (72) is in contact with the inner surface of the body due to the action of the spring (82). A vertically long Nanamik packing plate (72 ) are placed. In the communication region between the outer groove (88) and the side groove (92), The packing plates (70° 72) in the overlap area are in contact with each other in a wide plane.

Copy and translation of amendment) Suirosho (Article 184-8 of the Patent Law) July 17, 1992 Day Rin

Claims (1)

[Claims] 1. A cylindrical casing (10) and rotating at a constant speed inside the casing (10). a rotor (18), and a plurality of pistons (22) arranged at angles to each other. ), the piston (22) rotates at a non-uniform speed concentrically with respect to the rotor (18). The rotor (18) protrudes beyond the rotating boss (20) in the radial direction and is located inside the rotor (18). enter the working chamber (30) and at least one crank transmission to the rotor (1); 8), and the work chamber (30) is connected to the outer wall (24) on the rotor (18) side. ) and two mutually opposing end face portions (26, 28), The stone (22) divides the working chamber (30) into two in the radial and axial directions. In a rotary piston type internal combustion engine, which is sealed against the rotor (18) Leave it behind. Each piston (22) extends parallel to the axis and is closed in the radial direction. a groove (88) extending radially and opposite to the end surface at the radially outer end; two side grooves (92) opening axially in the direction; In the outer groove (88), the longitudinal side surface forming the sliding and sealing surface extends outward in the radial direction. It is in contact with the partially cylindrical inner surface of the wall (24) by the action of the spring (80). A vertically long ceramic packing plate (70) that acts as a radial packing. A packing plate (70) made of In the axial direction, the vertical side surfaces forming the surfaces are adjacent to each other in the end surface portions (26, 28). The packing plate (72) is in contact with the inner surface by the action of a spring (82). A vertically long ceramic packing plate (72) that acts as a thrust packing. A rotary piston type internal combustion engine characterized by the arrangement of. 2. A cylindrical casing (10) and rotating at a constant speed inside the casing (10). a rotor (18), and a plurality of pistons (22) arranged at angles to each other. ), the piston (22) rotates at a non-uniform speed concentrically with respect to the rotor (18). The rotor (18) protrudes beyond the rotating boss (20) in the radial direction and is located inside the rotor (18). enter the working chamber (30) and at least one crank transmission to the rotor (1); 8), and the working chamber (30) is connected to the outer wall (24) on the rotor (18) side. ) and ribs (32) directed inward from the outer wall (24), facing each other. the piston (22) is defined by two end portions (26, 28), and The chamber (30) is divided into two parts, and the rotor (18) is supported in the radial and axial directions. In particular, the rotary piston internal combustion engine according to claim 1, wherein the rotary piston internal combustion engine is Leave it behind. A boss (20) extends parallel to the axis in the area between the two pistons (22) and has a radius a respective one outer groove (116) opening in the direction; It communicates with the outer groove (116) at the outer end in the radial direction, and axially in the opposite direction from the end face. and a side groove (118) that closes in the direction, and a side groove (116) that is closed in the direction. , the longitudinal side forming the sliding and sealing surface is radially aligned with one of the ribs (32). A punching plate ( 74) is a vertically elongated ceramic packing that acts as a radial packing. A plate (74) is arranged and forms a sliding and sealing surface within the side groove (118). In the axial direction, the vertical side surface facing the inner surface of the adjacent end surface portion (26, 28) A packing plate (76) that is in contact with the action of a spring and is a thrust packing. A vertically elongated ceramic packing plate (76) that acts as a A rotary piston internal combustion engine featuring 3. The packing plates (70, 72; 74, 76) are located at opposite ends. Claim 1 or 2. The rotary piston internal combustion engine according to 2. 4. Packing plate (70) arranged in the outer groove (88; 116) and attached side groove The packing plate (72) arranged at (92; 118) is flat and has a The shaft is characterized by having a radial surface passing through the axis of rotation of the boss (20). A rotary piston internal combustion engine according to any one of claims 1 to 3. 5. The overlapping surfaces of the packing plates (70, 72) 2) is parallel to the plane spanned by The rotary piston internal combustion engine according to any one of . 6. Packing plates (70, 72) complement half the wall thickness in the overlap area and is equal to the complete wall thickness of the remaining area. The rotary piston internal combustion engine according to any one of items 1 to 5. 7. Two separate packing plates (70, 72) are arranged parallel to each other. packing stripes (94, 96, 98, 100), which are alternate on the wide side. Vertical ceramic packing stripes (94, 96, 98 , 100) and an outer groove (88; 116) or a side groove (92; 1 18) in the following manner, that is, facing the wide surface on the contact side. The free wide surfaces of the groove contact the groove flanks facing each other, and A common sliding surface in which the narrow surface of the rotor is in contact with the adjacent inner surface of the rotor. ・Outer groove (88; 116) or side groove (92; 118) to form a sealing surface ) is inserted in one of claims 1 to 6. The rotary piston internal combustion engine described in . 8. Packing stripes (94, 9) located in the outer grooves (88; 116) 6) have the same length and form an overlapping surface on the end side in the longitudinal direction. The rotary piston according to claim 7, characterized in that the rotary piston is offset from each other at internal combustion engine. 9. Packing stripes (98,100) located in the side grooves (92; 118) ) are configured with different lengths, with the radially outer end The roller according to claim 7 or 8, characterized in that the roller has a burlap surface. Tally piston type internal combustion engine. 10. The width of the packing stripe (98, 100) forming a sliding/sealing surface The cross section of the narrow surface (109) should be spherical as shown below, that is, the pattern A stripe (98, 100) is formed on the adjacent inner surface (108) of the rotor (18). ) with a spherical shape to define a vertical duct (110) that can be biased with lubricating oil. The lock according to any one of claims 7 to 9, characterized in that: -Tally piston type internal combustion engine. 11. Between the packing plate (70, 72) and the spring (80, 82) located at the bottom of the groove at least one filling member (102, 104, 106) having a rectangular cross section; According to one of claims 1 to 10, characterized in that: rotary piston internal combustion engine. 12. The filling member (104) is located in the overlapping area of the packing plates (70, 72). Claim 11, characterized in that it is configured as an angle member in the Rotary piston internal combustion engine. 13. The filling elements (102, 104, 106) are made of metal, preferably steel or cast iron. The rotary piston type according to claim 11 or 12, characterized in that: Internal combustion engine. 14. an outer groove (116) and a side groove (118) communicating with the outer groove (116); The packing plates (74, 76) disposed inside are wedge-shaped and chamfered so that they overlap each other. It has end surfaces (120, 122) that burlap and abut against each other in a pair. Rotary according to any one of claims 1 to 3, characterized in that: - Piston-type internal combustion engine. 15. The packing plate (76) disposed in the side groove (118) is radially It is characterized by being bent at the outer end and entering the outer groove (116). The rotary piston internal combustion engine according to claim 14. 16. The spring is configured as a wave spring (84) disposed within the outer groove (116). that the end of the wave spring (84) is placed in the side groove (118). in contact with the inner edge of the folded part of the packing plate (76) The rotary piston internal combustion engine according to claim 15, characterized in that: 17. The inclined end surface (1) of the packing plate (74) located within the outer groove (116) 20) is oriented in the direction of the groove bottom. The rotary piston internal combustion engine according to any one of the above. 18. Packing plate (70, 72, 74, 76, 78) or packing stripe (94,96,98,100) is made of silicon nitride or silicon carbide Rotary piston according to any one of claims 1 to 17, characterized in that internal combustion engine. 19. A wave spring in which the spring is supported at the groove bottom and extends along the length of each groove. (80, 82, 84) 8. The rotary piston internal combustion engine according to any one of items 8 to 8. 20. The packing roots (70, 72, 74, 76, 78) are located in two adjacent working chambers. Overpressure governing one of (30) or two parts of one working chamber (30) Due to the action of overpressure prevailing in one of the regions (30', 30''), the corresponding Additional pressure can be applied to the inner surface of the rotor and/or the groove flank on the suction side. The rotor according to any one of claims 1 to 19, characterized in that: Lee piston type internal combustion engine. 21. The end face (114) of the boss (20) has at least four, advantageously eight, The boss (20) is arranged in a polygonal shape concentric with the rotational axis of the boss (20) and opens in the axial direction. The vertical grooves (130) are provided with sliding grooves (130), respectively. In the axial direction, the vertical side surface forming the sealing surface is located at one side of the end surface portion (26, 28). The packing plate (78) is in contact with the adjacent inner surface of the A vertically long ceramic packing plate (78 ) is arranged. The rotary piston internal combustion engine described. 22. Pads placed in the polygonal longitudinal grooves (130) and side grooves (92, 118) The metal plate (78, 72, 76) is attached to the cylindrical bottle (126) at the end surface. The cylindrical bottle (126) is in close contact with the hole ( 124) and a hole parallel to the axis that cuts the grooves (130, 92, 118) in common The rotary according to claim 21, characterized in that it is inserted into (124). Piston type internal combustion engine. 23. The outer groove (88; 116) and the side groove (92; 118) are arranged opposite to each other. The ends of the packing plate are cut in common and are inclined in the longitudinal direction of the packing plate. a hole (140) and an adjacent outer groove and/or groove inserted into the inclined hole (140); or a pin with at least one slit hole opening towards the side groove. (142), and the slit holes are provided with packing plates (70, 72; 74, 76) is used for receiving both ends of the or the rotary piston internal combustion engine described in 2. 24. The pin (142) consists of two pin halves defining a slit hole. The rotary piston internal combustion engine according to claim 23, characterized in that: 25. The bottle has a chamfered outer edge parallel to the longitudinal direction of the side grooves (72; 76). Claim 2 characterized in that it has an end surface (144) substantially aligned with the 25. The rotary piston internal combustion engine according to item 3 or 24.