JPS60209668A - Distribution for multi-cylinder 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 Field of the Invention The present invention relates to a distributor for a multi-cylinder internal combustion engine, comprising: a shaft rotated by the internal combustion engine;
The ignition voltage, located on the axis, is a component of the transmitter that distributes the power to the rotor and transmits the signal for the ignition release, and likewise! The present invention relates to a type having a transmitting element arranged at Iη11.

One point that the invention attempts to solve is that in this type of distributor, the structural height of the distributor can be reduced, and the arrangement of the ribicator in the engine room of an automobile can also be made smaller. In order to avoid injury, it is desirable to keep the space between the rotor and the generator as small as possible. However, reducing the spacing between the rotor and the transmitter is limited by the fact that the transmitter is at ground potential and the rotor conducts high voltages during ignition and distribution of the S pulse. This is because if the separation falls below a predetermined minimum interval 1b, air sparks will occur, which will have an undesirable effect.

SUMMARY OF THE INVENTION It is therefore an object of the invention to reduce the spacing between rotor and transmitter without any disadvantageous effects, so as to significantly reduce the structural height of the distributor.

Means for Solving the Problem In order to solve this problem, the present invention provides a distributor of the type mentioned at the outset, in which the space between the rotor and the transmitter comprises at least two separate parts. An insulating shield is provided.

Functions and Effects of the Invention By providing an insulating shield between the rotor and the transmitter as described above, the distance between the rotor and the transmitter can be significantly reduced compared to the conventional one. It is also possible to reduce the height of the M (4) structure of the distributor with a lower 1-rotation.The fact that the insulating shield consists of at least two separate parts also makes it easier to remove the insulating shield. It is.

Embodiment The distributor shown in FIG. 1 is for an internal combustion engine for an automobile (not shown). The distributor of 1-I〇F cures the board 1, and this σ)-11
The shaft 36 has a bearing 2 for the shaft 3 in its central region.The shaft 36j is rotatably supported in the bearing 2.The shaft 36j also protrudes from the base 1 and is connected to the end section. 4, and this connection can be connected to the camshaft (not shown) of the internal combustion engine. A rotor 6 is screwed to this 7-wheel drive 5.0-
The distribution fin 6 consists of an insulator 7, from which a distribution fin 8 projects in the radial direction. Distribution finger 8θ) Free d:i, + Distribution from PCB? Ij
) KTI 9 is protruding, and this distribution tri, The J1131000 fixed electrode 10 is schematically shown and is placed on the flange of the internal combustion engine, with the high voltage connection @lj l l 6
One rod is placed in contact with the spark plug. An ignition 1L pressure pulse is transmitted by the distribution electrode 9 to the ignition electrode 10, in which case this ignition pulse is taken from an ignition coil (not shown), connected to the high-voltage connection 12 and to the high-voltage connection 13. contact play)-1
, 41c are supplied. The contact plate 14 is electrically connected to the power distribution unit, and is connected to the first. ing. A blind-like transmitting element 15 is inserted between the flange 5 and the insulator 7, and this transmitting element 15, together with a Hall element 16 that acts as a barrier, is used as the first trigger of the ignition release. A signal generator 17 is formed. Rochro and opening (fi device 17-1 Consisting of insulation resistance Rochro connection / cap 1
It is covered by δ, and this θ) connection gap 18
With high voltage connection i? lil, 12 is I'f! ? Form a unit and -C°C. The connection knob 18 is advantageously extended and secured to the base plate by means of screws, as shown schematically in dashed lines 19.

In order to keep the spatial distance between the high-pressure part (14, 9) of the rotor 6 and the transmitter 17 small and thus to keep the structural height of the distributor small, the high-pressure part (14, CI) of the rotor 6 is An insulating shield 20 is provided in the space between the transmitter 17 and the transmitter 17 . In order to keep the component consisting of the rotor 6 and the transmitter 17 intact during assembly and removal of the insulating shield 20, the insulating shield 20 is divided into at least two separate parts 21.
22 (Fig. 2), in this case the image portion 21.
22 is shell-shaped and can be assembled by inserting it into a hole. One part has labyrinth-shaped grooves on the parting surface, and these grooves are aligned with the cross section of the parting surface of the other part. Provides electrical insulation.

In order to avoid parts 21;, 22 coming apart from each other, flexible connections 23 are provided on parts 21, 22.
(see FIG. 3). In this case, a hinge-like connection 24 is particularly advantageous. This also simplifies the production of the insulating shield 20 from the point of view of manufacturing technology. become.

In order to ensure that the position and shape of the insulating shield 20 will change later, the insulating shield 200 is tightened.
Advantageously, an outer flange 25 is provided 71 in the base region, by means of which the insulating shield 20
is inserted between the substrate 1 and the connection cap 18.

To further enhance its effectiveness, the distribution finger 8 may be provided with a protruding ridge 26, which
extends along the distribution finger 8 and is located below the distribution electrode 9.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a distributor according to the present invention, FIG. 2 is a perspective view showing the insulating shield used in the distributor shown in FIG. FIG. 6 is a partial perspective view showing a modified embodiment of the insulating shield shown in FIG. DESCRIPTION OF SYMBOLS 1... Substrate, 2... Bearing, 3... Axis, Coupled area, 5... Flange, 6... Rotor, 7... Insulator, 8... Distribution finger, 9...Distribution electrode, 10.
・Fixed electrode, 11. ．． 12...High voltage connection part, ■3...
・Slip contact, 14... Contact plate,
15... Transmission element, 16... Hall element, 17...
18. Connection cap, 19. One-dot chain line, 20. Insulating shield, 21.22. Part, 2
3.24...Joining part, 25...Outer flange, 26...
・・Rump @l53−・Axis

Claims (1)

[Claims] 1. A distributor for a multi-cylinder internal combustion engine, comprising a shaft (3) rotated by the internal combustion engine;
An electrode (10
), and a transmitting element (15) which is a constituent part of the transmitter (17) and which is also located on the shaft (3) and which transmits the first signal of the wide release. In the type having a rotor (6) and a transmitter (17)
In the space between
A body (20) is provided on an insulating chain consisting of (1, 22), l
A distributor for a multi-cylinder internal combustion engine, characterized in that: 2. Distributor according to claim 1, wherein the Me portions (21, 22) are fell-shaped. 3. The distributor according to claim 1, wherein said parts (21, 22) can be plugged into each other. 4. Distributor according to claim 1, wherein said parts (21, 22) have a flexible connection (23). 5. Distributor according to claim 1, wherein the parts (, 21, 22) are hingedly connected to the housing. 6. An insulating shield (2) consisting of the portions (21, 22)
The shape and position of the rotor (6) and the transmitter (17)
Distributor according to any one of claims 1 to 5, wherein the distributor is secured by a connecting cap ( ]8) covering the top.