FIELD: transport.
SUBSTANCE: invention relates to safety systems used at vehicles for fast lifting of hood at collision with pedestrian, particularly, to drive (10) with starting gear. Drive comprises case (12) to house piston (14) and rod (16), gas generator (18) arranged in said case (12) opposite said piston (14) to create pressure in first chamber (20) composed between said gas generator and said piston. Piston (14) has groove (30) made at piston side surface to receive linear (40) to seal wire (10) relative to case (12). Calibrated duct (50) is made between linear (40) and wall of groove (30) to discharge gases from first chamber (20).
EFFECT: higher safety.
17 cl, 15 dwg
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