Cleaning unit for headlight glass of motor vehicles has electrical heater with heat store to heat spray nozzle and move with it across glass

摘要

The unit has a spray nozzle for a washing fluid and a device to move the nozzle across the glass. The spray nozzle (6) has a heater with store (17) to store heating energy for at least one time period required to move the nozzle across the glass (4). The store is moved with the spray nozzle, and is recharged when the nozzle is in one position. The heat store is an electrical store, e.g. a condenser, for an electrical heater (15).