AMPHIBIAN Russian patent published in 2006 - IPC B60G17/04 B60G17/52 F16F9/48 B60F3/00 

FIELD: transport engineering; amphibians.

SUBSTANCE: invention relates to amphibian vehicles, particularly, to post of hydraulic systems suspension. According to invention, vehicle has at least one wheel shifted out from vehicle body to support vehicle when it is used on the ground and retracted for use on water. Vehicle is furnished additionally with hydraulic cylinder containing hydraulic fluid, piston installed for movement inside cylinder and dividing the cylinder into first and second chambers, device to connected piston with suspension lever mechanism connected with wheel, first two-position valve designed to control fluid flow between first and second chambers at least on section of working stroke of piston, and second two-position valve connected only with one of first and second chambers. When first valve is open, and second valve is closed, post provides functions of suspension and/or damping of wheel vibrations. When first valve is closed and second valve is open, post serves as drive to move wheel between extended and retracted positions.

EFFECT: provision of retraction and extension of wheel through distance exceeding that required for normal riding.

13 cl, 11 dwg