Testing device for a tire inflation device

摘要

Disclosed is a testing device for a tire inflation device, comprising a housing (10) which includes a bottom (11) and an annular outer wall (12) with a cylindrical inner surface (16), a piston (15) which is movably guided on the cylindrical inner surface (16), is sealed and has an annular engagement surface (20) for sealingly engaging an inflation ring (3) and a central piston opening (19), a spring (26) arranged between the bottom (11) and the piston (15), its spring force seeking to move the piston (15) away from the bottom, and sensors detecting the pressure in an inner chamber (18) adapted to be filled with compressed gas and the temperature of the housing (10).

主权项

1. A testing device for a tire inflation device having an inflation ring which is engageable against a sidewall of a tire and has an annular opening through which gas under pressure can be fed to the tire, and a sealing device arranged opposite the inflation ring, comprising
a housing which includes a bottom and an annular outer wall with a cylindrical inner surface bounding an inflation chamber, a piston which is movably guided on the cylindrical inner surface, is sealed and has on the side facing away from the bottom an annular engagement surface for sealingly engaging the inflation ring and radially within the engagement surface has a piston opening leading into the housing, at least one spring arranged between the bottom of the housing and the piston, its spring force seeking to move the piston away from the bottom, and a pressure sensor capable of detecting the pressure in an inner chamber of the housing adapted to be filled with compressed gas and converting the pressure into electrical quantities.