JPS61215832A - Flywheel - 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 Field of the Invention The present invention relates to a segmented flywheel mounted on the crankshaft of an internal combustion engine.

PRIOR ART AND DISADVANTAGES In such a split flywheel disclosed in Federal Republic of Patent Application No. 2,931,423, the first flywheel is screwed to the crankshaft using a screw. The first flywheel has an integral bearing attachment, on which the second flywheel is rotatably supported. Both flywheels are rotationally elastically connected to each other using a torsional vibration damper, R. The torsional vibration dampers ξ are two rotatably elastically connected to each other via a spring.
It has two damper parts, one of which is rigidly connected to the second flywheel, and the other damper part is connected to the first flywheel via a friction device.

In this known split flywheel, the torsional vibration damper and the first flywheel form a single constructional unit, which gives rise to various problems during assembly in practice. In the automobile industry, internal combustion engines are usually manufactured by automobile manufacturers; however, subcontractors are required to install parts supplied from the factory, such as starting and switching clutches, on the internal combustion engines. In conventional general-purpose clutches, the torsional vibration damper R is a component of the clutch plate, so that the function of the torsional vibration damper can be inspected before assembly, but this is not possible with known split flywheels. . This is because the torsional vibration damper can only be activated after the two flywheels have been assembled. However, at least the first flywheel must also be discharged together with the crankshaft, and test operation of the internal combustion engine is not possible.

OBJECT OF THE INVENTION It is therefore an object of the invention to provide a segmented flywheel that can be assembled more easily.

Means for Solving the Problem In order to solve this problem, in the configuration of the present invention, the first flywheel is fixed to the crankshaft using the first screw fastening member independently of the torsional vibration damper, and the first flywheel is fixed to the crankshaft using the first screw fastening member. The vibration damper forms a pre-assembled unit and the second
The first flywheel is connected to the first flywheel via a screw fastening member.

Functions and Effects of the Invention When configured as in the present invention, the first flywheel can be assembled to the internal combustion engine, and therefore a test run can be carried out. Functional testing of torsional vibration dampers can also be carried out in a problematic manner, so the vehicle manufacturer can obtain from the manufacturer of torsional vibration dampers a complete unit that is precisely adjusted, especially with regard to the spring rate and the friction device. The vibration damper does not have to be assembled from individual parts by the automobile manufacturer as is conventional. As a result, there is no risk of incorrect assembly and no loss of individual parts.

Implementation In an advantageous embodiment of the invention, the bearing attachment on which the second flywheel is mounted is constructed as a separate component from the first flywheel, which component is separate from the first flywheel. They are screwed together to the crankshaft via a common fixing screw. In this case, it is advantageous if the fixing screws are arranged in a common pitch circle. A portion of the thread of this pitch circle, however, exclusively connects the first flywheel to the crankshaft and serves to secure the first flywheel to the crankshaft independently of the bearing attachment. In this case, it is advantageous if the heads of these screws are located in recesses in the bearing attachment. With this configuration, a temporary connection between the crankshaft and the first flywheel can be achieved with a relatively small space requirement, and the second flywheel, which is supported on the bearing attachment, can be connected laterally. Can be combined with the crankshaft. The second flywheel is also preferably mounted in a releasable manner on the bearing extension, so that the internal combustion engine manufacturer can optionally install the bearing extension in advance independently of the second flywheel. Can be assembled.

Embodiment FIGS. 1 and 2 show a crankshaft 3 of a motor vehicle, which rotates about a rotational axis 1. A first flywheel 7 is connected to the crankshaft 3 by means of a tensile screw 5. is fixed. A bearing attachment portion 9 separate from the flywheel 7 and disposed on the side of the flywheel 7 away from the crankshaft 3
is also fixed to the crankshaft 3 using a fixing screw, in particular a tension screw 11. The screws 11 are arranged together with the screws 5 at equal angular intervals on a common pitch circle 13, as shown in FIG. 3, and serve at the same time to fix the flywheel 7. A second bearing 15, for example a ball bearing or a plain bearing, is connected to the bearing attachment part 9, as will be described in detail later.
A flywheel 17 is rotatably supported. A torsional vibration damper e19 connects both flywheels 3°17 to each other in a rotationally elastic manner. The second flywheel 17 forms, in a conventional manner, an opposing pressure surface 20 for a clutch plate 21 of a motor vehicle friction clutch, the housing of which is designated by the reference numeral 23.

The second flywheel 17 is rotatably but axially fixedly attached to the bearing attachment part 9 via a torsional vibration damper e19 and a bearing 15. Using the screw 5, the flywheel 7 is connected to the torsional vibration damper 19 and the second flywheel 17.
Since it can be assembled to the crankshaft 3 independently of the torsional vibration damper 19 and the second flywheel 17, it is possible to carry out a test run of the internal combustion engine before assembling the torsional vibration damper 19 and the second flywheel 17. A few screws 5, for example two or three, are sufficient for this temporary fixing of the flywheel 7. The final fixing of the flywheel 7 together with the bearing attachment 9 takes place using a screw 11 which is longer than the screw 5. In this case, the spatula P of screw 5
engage in holes 25 in the bearing attachment 9, which holes 25 are covered by a ring plate 27 for supporting the screws 11. Alignment pins 29 , which are preferably arranged on the pitch circle 13 in the area of the pitch circle 13 , serve to precisely align the bearing attachment 9 with respect to the first flywheel 7 .

The torsional vibration damper/e19 has two ring-shaped side plates 31, 33 arranged at an axial distance from each other, and each side plate 31, 33 has a plurality of circumferentially distributed side plates 31, 33 in its outer peripheral area. They are firmly connected to each other by spacer bets 35. Viewed in the radial direction inside the spacer rivet 35, the side plates 31,33 are fixed to one another by a further spacer rivet 37. Seen in the axial direction, between the side plates 31 , 33 a bossed disc 39 is arranged rotatably over a limited angle of rotation relative to the side plates 31 , 33 . The bossed disc 39 has a boss 41 fixed to the bearing 15 in the axial direction on its inner circumference. Side plate 31.3 axially aligned on the one hand with window 43 of bossed disc 39 and on the other hand with respect to this window 43
Pressing coil springs 49 are disposed in the windows 45 and 47 of 3, and these suppressing coil springs 49 connect the side plates 31, 33 with the bossed disk 39 in a rotationally elastic manner. Although a plurality of springs are actually provided distributed in the circumferential direction, only one of them, spring 49, is shown in FIG. The side plate 33 adjacent to the first flywheel 7 is screwed to the second flywheel 7 in the outer peripheral area of the side plate 33 using screws 51 from the second flywheel 17 side.

The second flywheel 17 is the first flywheel of this second flywheel 17.
It is screwed to the outer periphery of the bossed disc 39 using a screw 53 from the side opposite to the flywheel 7. The screw 53 is
It is arranged on a pitch circle having a larger radius than the pitch circle of the screw 51. The screw 51 is inserted into the hole 55 of the second flywheel 17, the notch 57 of the side plate 31, and the hole 5 of the bossed disc 39.
9 is accessible in the axial direction for a screwdriver. The screw 51 and the screw 53 are arranged on the side of the spring 43 opposite to the axis of rotation 1 when viewed in the radial direction.

Whereas in the upper half of FIG. 1 the side plate 33 surrounds the spacer sleeve 61 which axially fixes the bearing 15, in the variant embodiment shown in FIG. The bearing attachment part 9 and the first flywheel 7
It has been extended between The screws 11 are also used to fix the inner circumference of the side plate 33. Furthermore, in FIG. 2 the screw 11 shown as a tension screw in FIG. 1 is designed as an alignment screw, so that the alignment pin 29 shown in FIG. .

Torsional vibration Dan-J? The x9 has two friction devices 63, 65 which can be constructed in a customary manner and are arranged between the side plates 31, 330 when viewed in the axial direction. The friction devices 63, 65 are components of a component forming a torsional vibration damper.

To assemble the split flywheel shown in FIGS. 1 and 2, first the first flywheel 7 is connected to the crankshaft 3.
is temporarily fixed using screws 5 for test operation of the internal combustion engine. Next, the torsional vibration damper is assembled using screws 11 and 51. After assembly of the torsional vibration damper, the second flywheel 17 is screwed on using screws 53, which are shown in partial section offset in the circumferential direction in FIG. Next, the clutch plate 21 and the clutch casing 23 are assembled in a conventional manner, and the clutch casing 23 holds, for example, a clutch spring device and a pressure plate.

In the following, variant embodiments and further embodiments of the segmented flywheel will be described. In this case, parts having the same function are given the same reference numerals, and a lowercase letter of the alphabet is additionally added to distinguish them.

The divided flywheel shown in Figure 4 is shown in Figures 1 and 2.
The main differences from the flywheel shown in the figure are as follows. That is, in the flywheel of FIG. 4, the screw 51a screwed in from the crankshaft 3a side to fix the side plate 33a of the torsional vibration damper 19a is fixed to the first flywheel. The screw 51a is accessible for driving in the axial direction or from the outside radially through the recess 67 of the first flywheel 7. Holes and notches 5
5.57.59 can be omitted in this case.

The divided flywheel shown in FIG. 5 is similar to the flywheel shown in FIG. 1 mainly in the form of a screw connection in which the side plate 33b of the torsional vibration damper 19b is fixed to the first flywheel 7b in the area of its outer circumference; Second flywheel 17b
The difference is in the type of screw fastening that is held on the post disc 39b. A buckle bolt 51b is arranged in the hole 69 of the side plate 33b instead of a screw screwed into the side plate. This retainer bolt 51b has a head 71 on the side of the side plate 33b opposite to the flywheel 7b, and this spatula P is welded to the side plate 33b. A nut 73 is screwed onto the retainer bolt 51b for fixing it on the flywheel 7b. The nut 73 is accessible in the radial direction through the notch 75. Instead of the screw 53 screwed into the bossed disc 39b, the flywheel shown in Fig. 5 uses a dowel bolt 5.
3b, these stay bolts have an annular flange 77 on the side adjacent to the flywheel 17b, and are riveted to a flat spatula P79 on the opposite side of the bossed disc 3Qb from the annular flange 77. ing.

The annular collar 77 also serves as a spacer between the bossed disc 39b and the second flywheel 17b.

The second flywheel 17b is screwed to the bossed disk 39b by a nut 81 that is accessible from the side of the second flywheel 17b opposite to the first flywheel 7b.

FIG. 6 shows a modified embodiment of the divided flywheel shown in FIG.
It has a retaining bolt 53c for fixing C. This retainer bolt 53C has a spatula P85 that is non-rotatably guided via a fitting joint in a recessed portion 83 of the bossed disc 39c on the side opposite to the flywheel 17c. A spacer sleeve 87 is arranged on the dowel bolt 53C between the bossed disc 39C and the flywheel 17C. The nut 89 tensions the flywheel 17C against the bossed disk 39C via the spacer sleeve 87. The nut 89 is also freely accessible from the driven side of the clutch plate in this case.

In the modified embodiment shown in FIG. 7, a flanged nut 91 is pushed into the bossed disk 39d, and the second flywheel 17d is inserted into the flanged nut 9 from the driven side of the divided flywheel. A screw 53d with a spatula P is screwed in for fixing. The head screw 53d also serves to fix the clutch casing 23d at the same time.

FIG. 8 shows a modified embodiment of the split flywheel shown in FIG. 5, in which side plates 33e
are screwed to the flywheel 7e via screw fastening members each consisting of a retainer bolt 51e and a nut 73e.

The only difference in the screw fastening member from the embodiment shown in FIG. 5 is the manner in which the head 71e of the retainer bolt 51e is fixed. The head 71e has a holding surface 91 that is deviated from a perfect circle,
It is held unrotatably by a material protrusion 93 extruded from the side plate 33e. spatula r71e in the axial direction
are secured by caulking points 95 on material ridges 97.

FIG. 9 shows another modification of the fastening type in which the side plate 33f is fastened to the first flywheel 7f using a retaining bolt 51f. In this case, the retainer bolt 51 f
It has an annular collar 99 on the side facing the flywheel 7f and is riveted to the spatula P101 on the side opposite the flywheel 7f. The flywheel 7f is fixed to the side plate 33f by a nut 73f screwed onto a retaining bolt.

In the modified embodiment shown in FIG. 10, a flanged nut 103 is inserted into a side plate 33g fixed to the first flywheel 7g, and a flanged nut 103 is screwed from the opposite side of the flywheel 7g from the side plate 33g. 51g is screwed in. The screw 51g is accessible from the outside in the radial direction via the notch 67g.

In the above-described embodiment of the split flywheel, the first flywheel adjacent to the crankshaft is connected to the side plate of the torsional vibration damper, whereas the bossed disc of the torsional vibration damper is fixed to the second flywheel. It is rotatably but immovably guided in the bearing via a bossed disc.

In the embodiments shown in FIGS. 11 to 14 described below, the torsional vibration damper is independent of the bearing addition provided for the support of the second flywheel and is assembled together with the bearing addition. There is no need to be exposed. The bearing and bearing attachment of the second flywheel therefore do not necessarily have to be supplied together with the torsional vibration damper/e. In the embodiments described below, members having the same functions are designated by the same reference numerals as those in FIG. 1. The first flywheel 7h shown in FIGS. It is fixed to the crankshaft 3h via the additional portion 9h using a tensile screw llh. Bearing addition part 9h
A boss 41h is rotatably supported via a bearing 15h, and, contrary to the above embodiment, a torsional vibration damper is attached to the boss 41h via a rivet 37h.

Both side plates 31h and 33h of IQh are fixed. The side plates 31 if and 33h are wrapped radially inwardly around the bearing 15h in order to fix the torsional vibration damper 19h in the axial direction. An intermediate disk 39h is rotatably arranged between the side plates 31h and 33h when viewed in the axial direction, and the intermediate disk 39h is the bossed disk 39 shown in FIGS. 1 and 2. Unlike this, it is rotatable relative to the boss 41h. The intermediate disk 3911 also has a screw 41
h is screwed to the first flywheel 7h.

The screw 41h is accessible for screwdriving through the second flywheel 17h and holes 55h, 57h in the side plate 31h. As shown in FIG. 12, the second flywheel 17tl is screwed to a flanged nut 105 inserted into the side plate 31h via a K screw 53tl. Optionally, the clutch housing 23h can be fixed together with the second flywheel 17FI (see elongated screw 107 in FIG. 12).

Unlike FIGS. 1 and 2, the bearing 15h is provided with an annular disk 27h projecting radially outward beyond the bearing attachment portion 9h on the side opposite to the first flywheel 7h when viewed in the axial direction. Fixed in the axial direction. Annular disk 27
h is fixed using the screw llh that holds the bearing attachment part 9h, so the bearing attachment part 9h is attached to the torsional vibration damper 19h.
Can be supplied separately. Alignment pin 2
9h extends from the bearing addition portion 9h through the first flywheel 7h to reach the crankshaft 3h. Torsional vibration damper 19h
In this case too, it has two friction devices 6311.65tl, one of which, seen in the axial direction, connects the bearing extension 9h and the side plate 33 adjacent to the first flywheel 7h.
tl, and the other friction device is arranged between both side plates 31h and 33h when viewed in the axial direction.

In the flywheel shown in FIGS. 11 and 12, the friction unit 62h is stretched between the shoulder of the bearing attachment portion 9h and the shoulder of the side plate 33h, which face each other when viewed in the axial direction. This arrangement has several assembly drawbacks if the bearing add-on 9h is not supplied together with the torsional vibration damper ξ19h. However, in any case, the annular disk 27h also guarantees the possibility, if desired, of supplying the bearing extension 9h independently of the torsional vibration damper ξ19h. Is the bearing attachment part 9h a torsional vibration damper? 19tl, the annular disc 27h can be fixed to the bearing extension 9h by an additional set screw (not shown). However, the final fixation is performed using screws llh. In the flywheels shown in FIGS. 11 and 12, the bearing 15h is connected to the side plates 31h and 33.
Bearing 1
5h is supplied together with a torsional vibration damper IQh.

In the variant embodiment of the split flywheel shown in FIG. 13, the torsional vibration damper 19i and the bearing extension 91 including the bearing 15i and possibly the boss 411 form a separate supply unit. The bearing 151 is fixed to the bearing attachment part 91 in the axial direction by an annular disk 27i extending radially outward beyond the bearing attachment part 91, like the flywheel shown in FIGS. 11 and 12. The annular disk 27i is secured to the fixing screw 111 by an additional set screw.
It is held by the bearing attachment part 91 regardless of the bearing attachment part 91. Side plate 31i via spacer bets 35i and 37i
The side plate 331, which is firmly connected to the spring 49i, is screwed to the first flywheel 71 from the driven side using a screw 51i on the side opposite to the axis of rotation 11. The screw is accessible for screwdriving through the hole 55i of the second flywheel 171. Contrary to the embodiment described above, the second
The flywheel 17i is aligned with the axis of rotation 11 of the disc 391 with a boss.
The screws are not screwed on the side radially remote from the drive side, but screwed in the area of the inner periphery via screws 111 that are accessible from the driven side. The bossed disk 391 is unrotatably coupled to the boss 411 via teeth 113 at its inner circumferential portion. In this way, the torsional vibration damper 19i can be inserted into the boss 41 in the axial direction and fixed in the axial direction using the screw 511. A friction device 651 arranged between the side plates 31i and 331 when viewed in the axial direction connects the bossed disk 391 to the side plates 31i,
It is fixed to 33i. Screw 1〕1 when viewed in the axial direction
A friction disk 113 is inserted between the surface of the boss 41+ and the surface of the second flywheel 17i, which are pressed together using The boss 14i is engaged with the bearing 15i in the axial direction. Additionally, a ring-shaped heat insulating disc 115 is inserted between the second flywheel 171 and the annular disc 113, and this heat insulating disc '1715 is connected to the bearing 15;
Since it is thermally insulated from the second flywheel 17i, damage to the bearing due to overheating is avoided. clutch casing 23
1 is separately fixed to the second slotted carriage 171 using screws 117.

In the modified embodiment of the segmented flywheel shown in FIG. 14, the torsional vibration damper is similar to the flywheel shown in FIG.
19k forms a component which can be provided as a separate supply unit for the bearing attachment 9 and for the bearing 15. The flywheel shown in FIG. 14 differs from the flywheel shown in FIG. 13 mainly in the following points. That is, in the embodiment shown in FIG. 14, the side plates 31 and the intermediate disk 39, which are connected to each other by spacer bets (not shown), are rotatably supported by the boss 41k. The intermediate disk 39 is screwed to the first flywheel 7k from the driven side via a screw 51k in its outer circumference. The second flywheel 17k is attached to the screw 51.
and a notch 55k in the side plate 31 adjacent to the flywheel.
, 57k are axially accessible for screwdrivers. In order to non-rotatably connect the side plate 31k to the second flywheel 17, the side plate 31 has a collar nut 119, which has a collar nut 119 attached to the driven side of the second flywheel 17. A screw (not shown) is screwed in. The second flywheel is additionally screwed to the boss 41k in the area of its inner periphery by means of a screw 121, in which case the boss 41k as well as parts 113, 115 in FIG.
An annular disk 123 and a heat insulating disk 125 are inserted between the second flywheel 17 and the second flywheel 17 to fix the torsional vibration damper 19k in the axial direction. The torsional vibration damper can thus be used as a feed unit with or without a second flywheel 17k or as a bearing 15k and/or
It can be supplied as a supply unit with or without a bearing attachment 9k.

As in the above embodiment, the torsional vibration damper 19k is connected to the side plates 31 when viewed in the axial direction, to the friction device 65 disposed between the plates 33, to the boss 41 when viewed in the axial direction, and to the bearing attachment portion 9. and a friction device 63 stretched between the two. The annular disk 123 also projects radially inwardly through the boss 41k and fixes the boss 41k to the bearing 15k. The bearing 15 has a bearing attachment part 9k as shown in FIG.
It is fixed in the axial direction by an annular disk 27k fixed to. In this embodiment as well, the annular disk 27 is provided with a bearing extension 9k by means of an additional set screw 127, independent of the screw llk.
may be fixed.

The above-described embodiment of the split flywheel allows the construction and testing of the chip chisel device to be carried out independently of the first flywheel, which is fixed to the crankshaft. Therefore, the first flywheel can be fixed to the crankshaft independently of the vibration damper, so that a test run of the internal combustion engine can be carried out before the assembly of the torsional vibration damper 6. The second flywheel can be assembled independently. Repair of the individual parts of the split flywheel is therefore easily possible. Furthermore, the unit of supply of the constituent components of the divided flywheel is also variable.

[Brief explanation of drawings]

1 and 2 are vertical cross-sectional views of the upper and lower halves of a first embodiment of a divided flywheel for an internal combustion engine taken along a plane including the axis of rotation, and FIG. FIG. 4 is a partial vertical sectional view showing a first variation of the divided flywheel shown in FIG. 1; FIG. 5 is a diagram showing the arrangement of screws for fixing the flywheel to the crankshaft; 6, 7, 8, 9 and 10 are partial longitudinal sections showing a second variant embodiment of the flywheel shown in FIGS. 1 and 2; FIGS. FIG. 8 is a partial vertical sectional view showing yet another modified embodiment of the flywheel, in which case FIG.
11 and 12 are longitudinal sectional views showing the upper and lower halves of the second embodiment of the divided flywheel, and FIG. FIG. 14 is a partial vertical sectional view showing the fourth embodiment of the divided flywheel. 1...Rotation axis, 3...Crankshaft, 5, 11°5
1.51a, 51g, 51h, 51 i, 51, 5
3,111,114...screw (screw fastening member), 7,
7a, 7b, 7e, 7f, 7g, 7h...first flywheel, 9, 9i, 9k...bearing attachment part 13...pitch circle, 17.17c, 17h. 17i, 17k...second flywheel, l9,
IG) h+19i, 19k...Torsional vibration damper,
25...hole, 29...alignment bin, 31,3
3゜33a, 33b, 33e, 33f
, 33g, 33i...side plate, 39,3Qb, 39c
, 39h, 39k...disk with boss (intermediate disk), 41
...Boss, +1i, 41k...Flange ring, 4
9... Spring, 51b, 51e, 51f, 53
b, 53cm...stay bolt, 55.59...hole,
57... Notch, 71° 71e... Head, 73
, 73 e, 73 f...Natsuto, 83...
Concave portion, 85...Head, 93.97...Material protrusion, 95...Caulking location, 103...Nut with flange, 115,125...Engraving of heat insulation disc drawing (contents) (no change) 1Q -1111-Go- Procedural amendment (method) 1985 Gyuto I8 day

Claims (1)

[Claims] 1. A divided flywheel that is attached to the crankshaft (3) of an internal combustion engine, the flywheel being capable of being screwed to the crankshaft (3) via a first screw fastening member (5). 1 flywheel (7), a bearing attachment part (9) whose position is fixed relative to this first flywheel (7), and a first flywheel (7).
) and a torsional vibration damper (19) supported by a bearing attachment part (9) so as to be rotatable relative to
), and this torsional vibration damper (19) has
It comprises two damper parts rotatable relative to each other over a limited angle of rotation and rotationally elastically coupled to each other via a plurality of springs (49), one of the damper parts being , having two side plates (31, 33) arranged at an axial distance from each other and non-rotatably connected to each other and to one of the flywheels (7, 17), the other damper part being , which has an intermediate disk (39) disposed between the side plates (31, 33) and non-rotatably connected to the other of the latches of both flywheels (7, 17). The vibration damper (19) forms a preassembled unit and is connected to the first flywheel (7) via a second screw fastening (11) independently of the first screw fastening (5). A flywheel characterized by being able to be assembled. 2. The second flywheel (1) of the torsional vibration damper (19)
7) is supported rotatably but immovably in the axial direction by the bearing attachment part (9), and the bearing attachment part (9) is a separate part from the first flywheel (7). Flywheel according to claim 1, which is designed as a component and is releasably connected to the first flywheel (7) via a second screw fastening (11). 3. The first and second screw fastening members (5, 11) are arranged on substantially the same common circle (13), and the second screw fastening member (11) connects the first flywheel (7). The bearing attachment part (9) is fixed to the crankshaft (3) via the first flywheel (7), and the bearing attachment part (9) is connected to the first screw fastening member (5). Flywheel according to claim 2, characterized in that it has a cutout (25) in its area. 4. The third screw fastening member (51) is a torsional vibration damper (
19), wherein the damper portion coupled with the first flywheel (7) is fixed to the first flywheel (7), as described in any one of claims 1 to 3. Flywheel. 5. The side plate (33) adjacent to the first flywheel (7) is screwed to the flywheel (7) using a third screw fastening member (51), according to claim 4. Flywheel. 6. Third screw fastening member (51a, 51g; 73, 73
e, 73f) are the first flywheels (7a, 7b, 7e, 7
f, 7g), the side plates (33a, 33b, 3
6. Flywheel according to claim 5, having on the side opposite to 3e, 33f; 33g) an accessible engagement mechanism for a screw tool. 7. The third screw fastening member is connected to the side plate (33b, 33e, 33
f) retainer bolts (51b, 51e, 51f) held in
), the flywheel according to claim 6. 8. The flywheel according to claim 7, wherein the retainer bolt (51f) is riveted to the side plate (33f). 9. The retainer bolt (51b) is attached to the head (7) welded to the side plate (33b) on the side opposite to the first flywheel (7b).
1) The flywheel according to claim 7, comprising: 1). 10. The retainer bolt (51e) is the first flywheel (7e)
Flywheel according to claim 7, characterized in that it has, on the opposite side, a head (71e) non-rotatably guided in the shoulder of the side plate (33e). 11. The shoulder is formed by material ridges (93, 97) crimped to the side plate (33e) and the head (71
e) is the caulking point (95) of the material ridge (93, 97)
Claim 1 fixed axially by
The flywheel described in item 0. 12. The flywheel according to claim 6, wherein the third screw fastening member has a flanged nut (103) inserted into the side plate (33g). 13. Third screw fastening member (51, 51h, 51i, 5
1k) is a torsional vibration damper (19, 19h, 19i, 1
9k), the side plate (33, 33i) adjacent to the first flywheel (7, 7h, 7i, 7k) or the intermediate disc (39h,
39k), the first flywheel (7, 7h, 7i, 7k)
The first flywheel (7, 7h,
On the opposite side from the second flywheel (17, 7k)
17h, 17i, 17k) holes or notches (55, 57
, 59) having an engagement mechanism for a screwdriver accessible through the flywheel. 14. The second flywheel (17) is connected to the fourth screw fastening member (
14. The flywheel according to claim 1, wherein the flywheel is fixed to a damper part of a torsional vibration damper (19) using a torsional vibration damper (19). 15. The second flywheel (17) is connected to the torsional vibration damper (1
9) of the spring (49), viewed in the radial direction, the bearing attachment part (9)
), the fourth screw fastening member (53) is screwed to the intermediate disk (39) of the torsional vibration damper (19) or to the axially adjacent side plate (31), and the fourth screw fastening member (53) is screwed to the second screw fastening member (53). 15. Flywheel according to claim 14, further comprising an accessible engagement mechanism for a screwdriver on the side of the flywheel (17) opposite the first flywheel (7). 16. The fourth screw fastening member is connected to the intermediate disk (39b, 39c
16. Flywheel according to claim 15, characterized in that it has a retainer bolt (53b, 53c) held in the flywheel (53b, 53c). 17. The flywheel according to claim 16, wherein the retainer bolt (53b) is riveted to the intermediate disk (39b). 18. The flywheel of claim 16, wherein the buckle bolt has a head welded to the intermediate disc on the side opposite the second flywheel. 19. The retainer bolt (53c) is attached to the second flywheel (17c)
) of the intermediate disk (39c).
17. Flywheel according to claim 16, having a head (85) non-rotatably guided in ). 20, the second flywheel (17i, 17k) uses the screw fastening member (111; 114) to attach the bearing attachment part (9i, 9
15. The flywheel according to claim 14, wherein the flywheel is fixed to a flange ring (41i, 41k) which is rotatably but axially immovably mounted on the flange ring (41i, 41k). 21. A heat insulating disc (115;
21. The flywheel according to claim 20, wherein: 125) is arranged. 22, at least the second screw fastening member (11) is constructed as a tensile screw, and the bearing attachment part (9) engages with the crankshaft (3) and has an alignment pin ( The flywheel according to claim 2, wherein the flywheel is fixed to the first flywheel (7) using a flywheel (29).