Patent ID: 6253656
Filing Date: 2001-07-03
Classification: B60T

Abstract:
A vacuum brake booster with a housing which comprises at least one vacuum chamber and one working chamber which is separated therefrom by a movable wall and which is adapted to be optionally connected to vacuum or at least atmospheric pressure, and a sensor assembly comprising a differential pressure sensor, characterised in that the sensor assembly comprises:a housing which is arranged outside the brake booster housing, in which the differential pressure sensor is arranged;a first air duct connected to the differential pressure sensor, the length of which is sufficient to extend from the sensor assembly as far as into the working chamber of the brake booster; anda second air duct connected with the differential pressure sensor, the length of which is sufficient to extend from the sensor assembly as far as into the vacuum chamber of the brake booster, and in that the housing of the sensor assembly carries the first and second air ducts and is attached at the brake booster by means of the first and second air ducts.