| 摘要 |
#CMT# #/CMT# The accumulator (34) has a hydraulic pressure chamber (40) connected with a hydraulic circuit (8). The pressure chamber comprises a displaceable pressure chamber wall (42) and a preloaded spring element (44) i.e. coil spring, that loads the pressure chamber wall and establishes a pre-loading in the hydraulic circuit. The pressure chamber is limited in sections by a bellow (46) that is fiber-reinforced implemented, where an outer side of the pressure chamber is maintained at a constant ambient pressure. The spring element is designed as a single-piece with the bellow. #CMT#USE : #/CMT# Pressure accumulator for a closed hydraulic circuit of a motor vehicle steering system i.e. electro-hydraulical motor vehicle steering system. #CMT#ADVANTAGE : #/CMT# The pressure chamber is limited in sections by bellow, such that the accumulator exhibits no sliding sealing elements, thus avoiding wear of the accumulator, and hence enabling an operation of the accumulator in a leakage-free manner over a relatively long operating period. The maintenance of constant ambient pressure at the outer side of the bellow ensures temperature independence of fluid pressure in the hydraulic system. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a circuit diagram of a motor vehicle steering system with an accumulator. 8 : Hydraulic circuit 34 : Pressure accumulator 40 : Hydraulic pressure chamber 42 : Displaceable pressure chamber wall 44 : Preloaded spring element 46 : Bellow. |
