DE861178C - Battery ignition system for operating internal combustion engines - Google Patents

Description

There are known ignition systems for the operation of internal combustion engines, where each spark plug works together with a special ignition coil, which expediently arranged directly on the spark plug. Such ignition devices have the advantage that they work without high voltage distribution; as a disadvantage On the other hand, it can be noted that the individual ignition coils turn relatively large.

In order to avoid this, at least one pre-transformer according to the invention provided, which cooperates with a group of individual ignition coils, and in such a way that a control breaker in the primary circuit of the pre-transformer is switched on, while the primary windings of the to its secondary winding The ignition coils belonging to the group are synchronized with the fire breaker circumferential switching device are connected. With such an ignition device, in which the transformation of the input voltage to the ignition voltage: in two Steps takes place, the primary current for the pre-transformer of an Aldkumulatorenbatterie removed or permanently magnetically induced. One to a pre-transformer Connected group of ignition coils can consist of a maximum of eight ignition coils. To operate internal combustion engines with a large number of cylinders, there are therefore several pre-transformers necessary.

In the figure in which, a circuit diagram of a battery ignition system for operating a four-cylinder internal combustion engine according to the invention is, illustrates a Akknmulatorenbatterie, which on the one hand via a Switch b with the primary winding c of a pre-transformer and on the other hand with a control circuit breaker d and a capacitor connected in parallel to this e is connected.

The control interrupter d causes the flow in the winding e Current in the rhyfhanus of the work cycles of the Brena power machine to be operated interrupted. One end of the secondary winding f of the pre-transformer is grounded, while .the other end is connected to four switches g of a distribution device is, by which in each case at the ignition point, d. H. at the opening of the control breaker d, a voltage surge induced in, the secondary winding f of the pre-transformer an ignition coil is given to the primary winding h, one side of which is also given is connected to ground. Four such ignition coils are used to operate a four-cylinder industrial engine required, but only one is shown in the illustration for the sake of simplicity. One spark plug each is connected to the secondary winding of these ignition coils in a cylinder connected to the internal combustion engine. The transformation ratios of the pre-transformer and the ignition coils can be chosen, for example, so that the pre-transformer the voltage is pretransformed to 2ooo V, while the ignition coils are completely used is increased to the ignition voltage of ro ooo V.

Claims (1)

Claim: Ignition device for the operation of internal combustion engines, in which each spark plug is assigned a special ignition coil, characterized by at least one pre-transformer which works together with a group of individual ignition coils in such a way that a control breaker is switched on in the primary circuit of the pre-transformer, while its secondary winding The primary windings of the ignition coils belonging to the group are connected via a switching device that rotates synchronously with the control interrupter.