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Bosch windscreen vipers

A windscreen viper is a device for removing rain drops and dirt from the windscreen of a car. It is usually made of a moving arm on one end and a so called blade on the other. The blade oscillates back and forth removing water from the glass surface. The speed can be regulated: there are several constant speed levels and one or two intermittent ones.

The majority of cars uses two synchronized radial type arms, but there are vehicles that only use one (the so called monoblade system). Some cars have “hidden” windscreen vipers. When they are turned off, a special mechanism moves them down, to the bottom of the windscreen. In order for them to not be visible the hood must be placed a little higher than the bottom of the windscreen.

Windscreen vipers can be set in motion in different ways, but in most cases, it is done by the force produced by the engine and transmitted through a series of mechanical components. Vehicles with a pneumatic brakes can use pneumatic windscreen vipers, which are placed in a small air chamber of the braking system.

The two main requirements of a windscreen viper are interfering as little as possible with the driver’s view and cleaning the biggest part of the windscreen. The traditional way of doing this is placing the arm on the bottom of the windscreen (in a car).

Due to its function nature, windscreen vipers tend to wear down over time (that’s why it is advisable to buy resistant vipers, like the Bosch ones). They can also be physically damaged in an accident or by a fallen object, such as the branch of a tree. When you replace a windscreen viper, choose a product that doesn’t prevent you from seeing the road and removes water in an efficient way. Since Bosch vipers are thin and made of low coefficient of friction materials, they provide both.

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