Objet de la recherche «fluides».

Cylinder in which the fluid pressure for the forward stroke only acts in one and the same direction ( ISO 1219-1 ). The piston can be returned by a spring, the inherent weight of the piston or external

device or a system (DIN 24 312). Self-priming pumps generate a negative pressure during priming if the fluid feed height is not positive. Min. and max. inlet pressure are dependent on the type of pump. On h

perpendicular to the drive axis. They can be subjected to pressure from the inside or outside by pressure fluid and are, amongst other things, suitable for high constant pressures . Pressurised from the inside [...] The pistons in the fixed cylinder block are moved by an eccenter on the drive shaft. The hydraulic fluid flow is generally controlled by suction and pressure control valves ( Figure R 5 ). Another concept

the compressive force will be balanced out by the opposing force from the internal friction of the fluid resulting from its viscosity . The relationship between flow rate and pressure difference is a linear

Viscosity of a hydraulic fluid at a defined temperature. This used to be +50°C according to DIN 51 502 and has been +40°C for a number of years now according to ISO 3448 (DIN 51 519). It is essential therefore

HWBF hydraulic fluid where any elements to be mixed into the medium in order, for example, to improve lubricity and increase corrosion protection are added as very small droplets. Micro-emulsions are

of cavitation erosion is much higher when water rather than mineral oils is used as the pressure fluid. Cavitation erosion is a form of particle jet erosion .

Takes into account along with the compressibility of the pressure fluid also the elasticity of the surrounding components as well as the connection line between the valve and . The equivalent bulk modulus

initiation of the sealing action. On elastomer seals this preload is increased in proportion to the fluid pressure ( automatic sealing ).

Increasing the volume of an elastomer seal through the action of the hydraulic fluid. The height of the swelling is different, depending on the seal materials . For example, polyamide swells strongly in