DE2022425A1 - Hand ignition for gas street lights with electronic pulse ignition - Google Patents

Description

Additional patent application for patent application P 16 29 911.9-16 Hand igniter for gas street lights with electronic pulse ignition.

Pulse ignition.

The lighting of the gas street lights, the gas valve of which is probably open but the ignition device failed for some reason, prepares considerable Difficulties and requires a lot of effort with the means available up to now.

These failures occur particularly strongly where there is an ignition device the constantly burning pilot flame is still being used. By gusts of wind or blocked Nozzles, the pilot flame can go out. The pilot lights must then be set by hand be made ready for operation again or ignited. The ones previously used for this Funds are insufficient. These are mainly special matches or soaked wadding or pieces of fabric attached to a stick.

These disadvantages are eliminated by the concept of the invention. The controlled impulse ignition for gas street lights after patent application is known P 16 29 911.9-16 which is automatically controlled by the gas valve. This patent application is expanded by the inventive concept of the additional application in that the controlled by the curve 5 switch 6 of the main patent application by a manually operated switch is replaced.

An additional pre-spark gap makes the spark gap galvanic separated from the capacitor and thus serves as protection against accidental contact when it is not activated Switch on if the capacitor should still have a certain charge.

Fig. 1 shows the electrical structure of the device, Fig. 2 shows the mechanical structure of the device.

Switching the power supply on and off, consisting of a or several flashlight batteries 3, takes place via the manually operated on switch 1 of Fig. 1. In the chopper 2, the direct current of the battery 3 becomes mechanical or electronically in alternating current and in the transformer 4 to a high voltage implemented. The secondary circuit of the transformer 4 consists of a rectifier 5, series resistor 6, charging capacitor 7 with parallel resistor 8 and the pre-spark gap 9 and the spark gap lo for the ignition. After switching on the spark gap A small current with high voltage flows in the secondary circuit, which forms the capacitor on loads. By appropriate dimensioning of the resistor 6 it is achieved that the capacitor 7 charges slowly and the voltage across the capacitor slowly increases. As soon as the voltage on the capacitor reaches the breakdown voltage of the spark gaps 9 and lo, the entire stored energy of the capacitor is discharged 7 over the spark gaps 9 and lo with the formation of a powerful hot spark that safely ignites the gas.

The voltage on the capacitor then drops immediately, the spark goes out and the capacitor starts charging again. This is repeated as long as the spark gap is switched on. This repetition creates a Pulse sequence of ignition sparks that guarantees reliable ignition of the pilot flame. Of the high resistance 8 parallel to the charging capacitor 7 is used to discharge the capacitor when the device is disconnected and thus as additional protection against contact lo in Fig. 2 sits in the tip of a long insulated thin connecting pipe 11 to the device part 12 with switch 1 and battery 3 around the combustion chamber of the gas lights to be able to reach easily and safely.

Claims (1)

Patent Claims 9 hand igniters for gas street lights with electronic impulse ignition characterized in that for the inevitable with the gas valve via a cam controlled switch of the main patent application no. P 16 29 911.9-16 a manually operated Switch 1 is used, the spark gap in the top of a long connecting tube 11 is arranged to the device part lo and the circuit by a pre-spark gap 9 and a discharge resistor 8 parallel to the charging capacitor in addition to protection against accidental contact received, 2nd hand igniter for gas street lights with electronic pulse ignition characterized in that the spark gap is at the end of a short connecting pipe to the device part, for igniting any gas flame that is particularly difficult to ignite such as gas stoves and heaters for natural gas, welding torches, blowtorches, small gas lights and beacon.