TRANSPORT FACILITY Russian patent published in 2010 - IPC B62D55/04 

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed transport facility comprises body, engine, transmission, chain tracks, front and rear wheels, and device to displace said wheels up or down relative to chain tracks bearing surface by means of hydraulic cylinders. Front and rear wheels of aforesaid device are arranged in the latter to be driven by front and rear pairs of hydraulic cylinders. Hydraulic cylinders of each pair are communicated via oil pipelines in parallel, while between pairs and with control channels of hydraulic control valve they communicate via two-way hydraulic lock. Oil pipeline communicating pairs of said hydraulic cylinders communicates with outlet channels of said two-way hydraulic lock via one-way hydraulic lock. Said one-way hydraulic lock opens oil passage at the pressure higher than that at which two-way hydraulic lock does it.

EFFECT: higher cross-country capacity.

3 dwg