AUTOMOTIVE SELF-RECOVERY DEVICE Russian patent published in 2012 - IPC B62D57/00 B60B15/00 B60B39/00 

FIELD: transport.

SUBSTANCE: proposed device comprises power element and control system including hydraulic system, feed lines and hydraulic accumulator. Power element is mounted under vehicle frame and made up of two pushers, each including box-like case with its one end secured on the frame, pushing hydraulic cylinder, slide and pressure hydraulic cylinder. In compliance with first version, slide and pushing hydraulic cylinder are arranged in housing while pressure hydraulic cylinder is mounted on housing that may incline under action of pressure hydraulic cylinder. In compliance with second version, slide is arranged on housing that may revolve around axle it is fitted on. Said axle is attached to vehicle frame. Note here that pressure hydraulic cylinder is arranged inside aforesaid housing and has its one end attached to support fixed on said axle. Note here that pressure hydraulic cylinder feed line communicated with hydraulic accumulator. The letter allows the slide to vary its inclination and maintain pusher pressure force directed to soil.

EFFECT: simplified design, higher reliability.

2 cl, 4 dwg