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1. (WO2018107257) FREEWHEELING SYSTEM FOR TANDEM AXLES

Pub. No.:    WO/2018/107257    International Application No.:    PCT/BR2017/050378
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Wed Dec 13 00:59:59 CET 2017
IPC: B60K 17/36
B60K 17/26
B60K 17/02
B60K 17/35
B60K 23/08
Applicants: CNH INDUSTRIAL AMERICA LLC.
CNH INDUSTRIAL BRASIL LTDA.
IVECO S.P.A.
Inventors: DE LEMOS, José Francivaldo Pereira
Title: FREEWHEELING SYSTEM FOR TANDEM AXLES
Abstract:
The present invention relates to a freewheeling system projected to be used in tandem or tridem axles (T), being formed by technical aspects that enable the disengagement and the individualized release of the wheels from the driven axles and, therefore, achieving the reduction in the resistance of the vehicle's running, in order to bring a considerable savings in terms of fuel consumption. More particularly, the present freewheeling system (10) comprises a hub cover (11) that is attached to the end (3) of the wheel hub (1) through fixation means (9) and comprises at least an air input (12) for feeding an actuator chamber (13) within which is accommodated a piston (14) that is engaged to a sleeve (15) concentrically mounted at the end of the axle shaft (5) having axial mobility, wherein said sleeve (15) has a flange (16) provided with tines (16a) that mechanically cooperate with tines (11a) predicted in said wheel hub cover (11). The present invention also addresses a vehicle for loads transportation comprising the freewheeling system for tandem axles of the present invention.