PNEUMATIC CIRCUIT FOR TYRE TESTING DEVICE, TYRE TESTING DEVICE AND TYRE TESTING METHOD Russian patent published in 2013 - IPC G01M17/02 

FIELD: motor industry.

SUBSTANCE: pneumatic circuit (1) is provided, with the help of which very low values of pneumatic pressure changes inside a tyre that arise in process of tyre testing may be controlled within a short period of time. Such pneumatic circuit (1) is equipped with a source (10) of air supply, which generates compressed air supplied into a tyre (T), retained in a tyre testing device (2); a pressure control valve (13), which adjusts pressure of generated compressed air; a valve (14) of supply/exhaust, which is provided downstream the pressure control valve (13) and with the help of which compressed air is supplied into the tyre or released from the tyre (T); a pressure detection unit (17), which is provided downstream the valve (14) of supply/exhaust and which determines tyre pressure inside the tyre (T); and a volume control device (21), which is provided between the pressure control valve (13) and the tyre (T) and which increases or reduces the compressed air volume in the line of air flow, between the tyre (T) and the pressure control valve (13), and also in the tyre (T).

EFFECT: increased accuracy of tyre testing with low costs.

12 cl, 4 dwg