US Patent 7441406 Fluid circuit and industrial truck having a fluid circuit

The invention relates to a fluid circuit for load displacement, having a fluid supply line for conveying fluid from a fluid tank by means of a fluid pump to at least one fluid store of a consumer, and having a fluid return line, through which fluid can be returned, driven by the consumer, from the store to the tank, a valve being provided in the fluid supply line which allows a fluid supply flow to pass through from the tank to the store and blocks a fluid return flow from the store to the tank, the fluid circuit also comprising at least one switchable valve which can be switched between a return flow passage position and a return flow blocking position, and being distinguished by the fact that the switchable valve is in that section of the fluid return line which is separate from the fluid supply line.