Hakuteksti "pumps".

Throttle units are built into the suction line of hydraulic pumps and compressors to specifically influence the filling of pumps or the compression pressure in the case of compressors. The suction throttle

Feature that on some adjusting features on pumps, e.g. power controllers, reduces or limits the pump delivery flow on reaching an upper adjustable pressure to prevent the pressure-limiting valve triggering

Valve, which in the case of valve-controlled (piston) pumps, opens due to the vacuum cased by the reverse pistons and allows hydraulic fluid to flow through afterwards. In the lower reversal point of the

leakage losses with pressurised water. For this reason valve plate-controlled pumps must be replaced by valve-controlled pumps and by seated valves . As a consequence, e.g., a 4-way directional valve must

the two gear wheels. Thanks to a long contact length and a lack of play at the teeth, internal gear pumps are associated with very low delivery flow pulsation and are therefore quiet during operation. With [...] (Figure I 11) . Their geometric displacement cannot be adjusted ( constant pump ). External gear pumps are also well suited for low-pressure drives and are an inexpensive alternative.

These include, among others The plunger circuit for fast advance , Usage of high volume low-pressure pumps (Figure E 3 a) , Rapid traverse by means of piston for rapid traverse , Rapid traverse due piston

arrangement of the gear wheels, it is possible to distinguish between external and internal gear pumps.

the hydraulic fluid on motors is from the exterior onto the piston (Figure A 11) . The control on pumps is automatic using suction valves and on motors using control discs or rollers. Opposite: internal

of constant pumps with Q k it is a disadvantage that the installed power P max is only required at one operating point (at p max , i.e. at corner power ). If, on the other hand, variable pumps with power

occurring inside a device. It is not visible from the outside, but can involve a loss of power. With pumps, for example, this may be a flow of leaking oil from the high-pressure side towards the suction side