Patent ID: 7441406
Filing Date: 2008-10-28
Classification: B66F,F15B

Abstract:
1. A fluid circuit for a load displacement device, having a fluid supply line, through which a fluid can be conveyed 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 at least one fluid store via the fluid pump to the fluid tank, a valve being provided in the fluid supply line, which valve allows fluid to pass through depending on the flow direction and allows a fluid supply flow to pass through from the fluid tank to the fluid store and blocks a fluid return flow from the fluid store to the fluid tank, the fluid circuit also comprising at least one switchable valve which can be switched between a return flow passage position in which it allows a fluid return flow to pass through and a return flow blocking position in which it blocks a fluid return flow, and the fluid circuit containing a fluid filter, wherein the fluid return line is formed separately from the fluid supply line at least in sections, the switchable valve and the fluid filter being provided in that section of the fluid return line which is separate from the fluid supply line, the switchable valve being arranged downstream of the fluid filter in the fluid return flow direction, further wherein, at least that section of the fluid supply line which is formed separately from the fluid return line, apart from the valve which allows fluid to pass through depending on the flow direction and the fluid line, is substantially free from further flow resistance.