Abstract: A pipe for heating and transporting a washer fluid for a windscreen wiper blade with a first spray line and a second spray line is disclosed. The pipe includes an extruded sleeve with at least two washer fluid circulation channels, in which sleeve at least two electric wires that are provided with heating elements of said pipe are embedded within the mass of the sleeve. In the pipe, the at least two electric wires are parallel to the at least two washer fluid circulation channels, the first washer fluid circulation channel is connected to said first spray line of the wiper blade, and the second circulation channel for the washer fluid is connected to said second spray line of the wiper blade.

Abstract: Method for washing a window of a motor vehicle, using a device comprising: at least one tank containing a de-icing fluid, a tube system connecting the at least one tank to openings through which the fluid is sprayed onto the window, a supply pump designed to circulate the fluid in the tube system until it is ejected via the aforesaid openings, and at least one wiper blade suitable for moving over the window through the action of a drive motor, characterized in that it comprises: a) a division of the angular sector swept by said at least one blade into elementary sectors, and b) over at least one elementary sector, a modulation of the exit pressure from the supply pump between a “nominal” pressure and a non-zero pressure that is less than this nominal pressure.

Abstract: The invention relates to a method for washing a motor vehicle wind shield (10) using a washing device (1) comprising reservoirs (2, 3) of first and second fluids, a channel (5) connecting the reservoirs (2, 3) to orifices (15) for ejecting the fluids onto the wind shield, at least one pump (20) intended to circulate the fluids in the channel (5), and at least one wiper blade (30), characterized in that, when the channel contains the first fluid, the method comprises the following steps: a) activating the pump system (20) so as to cause the second fluid to circulate in the channel system (5) so as to purge the channel of the first fluid, and b) deactivating the pump system (20) when the second fluid reaches the orifices (15).

Abstract: The invention relates to a method for washing a motor vehicle wind shield (10) using a washing device (1) comprising reservoirs (2, 3) of first and second fluids, a channel (5) connecting the reservoirs (2, 3) to orifices (15) for ejecting the fluids onto the wind shield, at least one pump (20) intended to circulate the fluids in the channel (5), and at least one wiper blade (30), characterized in that, when the channel contains the first fluid, the method comprises the following steps: a) activating the pump system (20) so as to cause the second fluid to circulate in the channel system (5) so as to purge the channel of the first fluid, and b) deactivating the pump system (20) when the second fluid reaches the orifices (15).

Abstract: The present invention relates to the control of a window washer system associated with a system for wiping a glazed surface of a motor vehicle, said wiper system comprising a wiper motor for rotating at least one wiper blade holder arm, and this window washer system comprising a liquid reservoir connected to at least one nozzle designed to deliver, over a wiping cycle, at least one liquid jet for at least a first window washer system activation period defined between an instant (td1) for initiating the spraying of the liquid and an instant (ta1) for stopping the spraying of the liquid, these instants each being determined as a function respectively of a first angular position and of a second angular position of the wiper blade holder arm defining a first angular sector in which the spraying of the liquid is continuous.

Abstract: The present invention relates to a pipe for heating and transporting a washer fluid for a windscreen wiper arm with two spray lines, characterized in that it comprises an extruded sleeve (4) of at least two washer fluid circulation channels (5a, 5b), in which sleeve at least two electric wires (6a, 6b, 6c, 6d) of the said pipe are embedded within the mass of the sleeve (4). The present invention also relates to a wiper device for a motor vehicle glazed surface comprising such a heating and transporting pipe and to a method of manufacturing the said pipe.

Abstract: The present invention relates to the control of a window washer system associated with a system for wiping a glazed surface of a motor vehicle, said wiper system comprising a wiper motor for rotating at least one wiper blade holder arm, and this window washer system comprising a liquid reservoir connected to at least one nozzle designed to deliver, over a wiping cycle, at least one liquid jet for at least a first window washer system activation period defined between an instant (td1) for initiating the spraying of the liquid and an instant (ta1) for stopping the spraying of the liquid, these instants each being determined as a function respectively of a first angular position and of a second angular position of the wiper blade holder arm defining a first angular sector in which the spraying of the liquid is continuous.