| 摘要 |
a) Installation for washing motor vehicle headlamp glasses. b) Installation characterised in that the pressure generator is a pulsing device (12) which generates abrupt pulses of water operating intermittently to be ejected by the nozzle (13), characterised in that the pulsing device (12) comprises a linear piston pump whose piston is driven by a motor for the intake stroke and by a return spring loaded up during the intake stroke in order to execute the delivery stroke. <IMAGE>
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