Stick slip
Interaction between a spring-loaded mass system (e.g. cylinder + oil column + load) and the pressurisation at very low sliding speeds ( Figure S 94 ). The stiction of the system –– which is primarily [...] low friction are chosen before reaching the hydrostatic piston bearing (e.g. in the case of servo cylinders ).
Pintle valve
ly reversing the rotating piston chambers of the rotating cylinder block from suction chambers to pressure chambers and vice versa ( Figure S 93 ).
Spherical cone
piston rings for sealing. The piston shaft is lowered ( Figure S 75 ). The spherical piston is used in axial piston machines, in which the cylinder drum is taken along by the Cardan joint or gear teeth.
Lowering brake valve
Back pressure valve with the task of preventing pulling loads on cylinders or motors from causing uncontrolled lowering. For this purpose, it is pre-loaded to a higher pressure than the pressure corresponding [...] reached by activating the valve using a hydraulic piston. Application: cranes, winches, etc. Figure S 45: Principle of drop-rate braking valve
Open loop control system
transferred only in one direction. There is always one open action flow or one open impact chain ( Figure S 87 a ). A control chain as a whole can always be connected to further systems in any functional relationship [...] : For example, one subsystem is the plant to be influenced, in fluid technology this is often a cylinder with a connected load, the second subsystem is the immediately upstream control device, for example
Hoses
media. Hoses in hydraulic systems, alongside transporting hydraulic fluid to moved consumers ( cylinders , motors ), often have the task of damping pulsations and pressure surges . As the hoses also have [...] steel wire braiding or spirals, which are embedded in intermediate layers of elastic materials ( Figure S 24 ). The hoses in hydraulic systems are wearing parts, whose strength is reduced, amongst other things