HEAVY TRAILER-TRAIN Russian patent published in 2007 - IPC B62D53/04 B60D1/14 

FIELD: transport engineering; railless vehicles.

SUBSTANCE: invention can be used in trailers. Proposed heavy trailer-train consists of prime mover with fifth wheel coupler engaging with semitrailer provided with bogie movable in longitudinal plane with safety bar rigidly secured on frame. Bogie engages with frame of semitrailer through rods and compression springs. Housing of hydraulic cylinder is installed on frame of semitrailer in space between rods and parallel to said rods. Piston of hydraulic cylinder consists of two halves spring-loaded relative to each other and is rigidly coupled by rod with frame of bogie. Radial through channels are made in housing of hydraulic cylinder in longitudinal plane in overpiston space. Said channels have different diameter in length of hydraulic cylinder and are coupled by common pipeline with channel made in housing in hydraulic cylinder in its underpiston space. Said channel is closed by one of halves of said piston at all running, braking and stand-still modes of trailer-train with possibility of opening at impact load on safety bar of bogie.

EFFECT: provision of damping of impact loads at collision of passenger car and trailer-train.

5 dwg