Wheel arch monitoring - Fire Stop

The wheel arch monitoring system addresses the inadequacy of existing fire protection by using temperature switches and a water-based extinguishing mechanism to rapidly cover the tire area with water, effectively extinguishing fires caused by fire vandalism.

DE202025003440U1Active Publication Date: 2026-03-26FRIEDRICH UWE
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2026-03-26

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Abstract

In a wheel arch monitoring system, an ON circuit is generated when a preset target switching temperature is exceeded by integrated temperature switches. This switching pulse causes the vehicle's on-board battery to supply 12 volts to an external consumer for the duration of the excessive target switching temperature. The system is characterized in that a switching pulse for a 12V DC 3.0A water pump (5) (with a 1.5 liter water tank for extinguishing water) is switched ON / OFF by means of a temperature switch (2).
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Description

1. The purpose of this presentation is to demonstrate how the wheel arch monitoring system has been perfected for a wider range of applications in order to protect a vehicle from fire vandalism. 2. The concentration is on the upper rounded area of ​​a vehicle wheel arch (1) i.e. the upwardly flickering flame of an applied accelerant (4) onto a vehicle tire (6) causes the existing ambient temperature in this area to increase. 3. This results in temperature switches (2) positioned centrally in the aforementioned rounded area above the tire contact surface for a fire accelerant, protected by a signal mat (3) in the vehicle wheel arch, being activated, as a preset target switching temperature is reached and a mechanical switching impulse (On) is thereby generated. 4. This switching pulse causes a two-wire line to separately transmit the 12-volt voltage from the vehicle battery's electrical system to a 12V / 3.0A DC water pump connected to a 1.5-liter water tank. (5) Simultaneously, this switching pulse triggers an audible alarm on the vehicle. (7) 5. Perfection is characterized by the fact that exactly two sprinkler nozzles (8) positioned in the signal mat (3) in this area are activated by the water pressure generated in the water tank. 6. By precisely aligning the variable spray nozzles contained therein, it is ensured that the entire contact area of ​​the vehicle tire is covered by a fire accelerant (4) and is powerfully sprayed with water supplied from the water tank, thus extinguishing the flame.

Claims

[1] In a wheel arch monitoring system, the ON circuit is generated when a preset target switching temperature is exceeded in integrated temperature switches. This switching pulse causes the voltage of 12 volts from the vehicle's on-board battery to be switched to an external consumer for the duration of the excessively high target switching temperature. characterized by , that a switching pulse for a water pump (5) DC 12V 3.0A (with water tank for 1.5 liters of extinguishing water) is switched ON / OFF by means of a temperature switch (2). [2] Two sprinkler nozzles located in the vehicle wheel arch are aimed at the upper curved area of ​​a vehicle wheel. To deliver a powerful extinguishing spray of water to a fire accelerant resting on it, these sprinkler nozzles in the wheel arch spray the contact surface with water at high pressure. characterized by, the spray nozzles in the sprinkler nozzles (8) which can be changed achieve a full surface water wetting of the vehicle wheel (6) until an applied fire accelerant (4) is extinguished, the temperature switches (2) generate the OFF circuit.