Equipements Automobiles Marchal

Equipements Automobiles Marchall

Jacques H Ferry

The accelerometer comprises: a body intended to be fixed on a component, such as an internal combustion engine cylinder head, whose accelerations or vibrations are to be detected; a piezoelectric element prestressed between the body and a seismic mass; and flexible electrical conductor means between two opposite faces of the piezoelectric element and the terminals of an electrical connector mounted on the accelerometer body, provision being moreover made for an electrical connection between the respective faces of the piezoelectric element and the adjacent parts of the accelerometer. The electrical connector means is mounted on the body of the accelerometer by means of the damping means capable of reducing or suppressing the mechanical transmission of the vibrations or accelerations from the accelerometer body to the connector.

Accelerometer, in particular for the detection of pinking in an internal

The device comprises automatic unlocking means for a fastening member connected to the belt and actuating means for the unlocking which are sensitive to a parameter of the state of a movable structure in which the safety belt is installed. The automatic unlocking means comprise means for automatically exerting a force against elastic means on a triggering device. The means for automatically exerting a force comprise a metallic element capable of exerting a force when heated, and heating means for this metallic element.

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Paris, France

Jacques H Ferry