Abstract: A pressure intensifier for fluids, in particular for liquids, comprising a cylinder block in which a pressure intensifier piston and a control piston move cyclically, wherein the pressure intensifier piston forms a high-pressure working chamber and a low-pressure working chamber in the cylinder block and the cylinder block has a low-pressure connection for feeding in low-pressure fluid from outside, a high-pressure connection for discharging higher-pressure working fluid towards the outside and a connection for discharging fluid whose working capacity in the pressure intensifier is exhausted, wherein the cylinder block has a coupling portion rigidly connected with it, which can be inserted into a receiving bore of a hydraulic block and fixed there, so that the receiving bore encloses the coupling portion, wherein the coupling portion has at least two fluid transfer regions fluidically separated by a seal, for exchanging fluid between the pressure intensifier and the hydraulic block into which it is inserted.

Abstract: The invention relates to a pressure boost for fluids, in particular hydraulic fluids, having a booster piston and a control piston unit, wherein a low-pressure side of the booster piston can be alternately connected by the control piston unit via a cylinder line to a low-pressure feed line and a discharge line, and a high-pressure side of the booster piston can be alternately connected to a high-pressure load line and a low-pressure feed line, wherein the control piston unit has two elements which are embodied as seat valves and which each interact with one valve seat and which are designed such that one of the elements intermittently seals off the low-pressure feed line, which can be connected to the low-pressure side of the booster piston, and the other element intermittently seals off the discharge line, which can be connected to the low-pressure side of the booster piston.

Abstract: The invention relates to a pressure booster (1) for fluids, in particular hydraulic fluids, having a booster piston (2) which is embodied as a differential piston and having a control piston unit (5), wherein the pressure booster (1) is embodied such that the low-pressure side (NA) of the booster piston (2) can be alternately connected by means of the control piston unit (5) via a cylinder line (C) to a low-pressure feed line (P) and a discharge line (T), and the high-pressure side (HA) of the booster piston (2) can be alternately connected to a high-pressure load line (V) and a low-pressure feed line (P), and the booster piston (2) also interacts with the control piston unit (5) by means of a control line (11) in such a way that the pressure which acts in the control line (11) determines the position of the control piston unit (5), wherein the control piston unit (5) has two elements (5A, 5B) which are embodied as seat valves and which interact with in each case one valve seat (6.1 and 6.

Abstract: A pressure intensifier for fluids, particularly for hydraulic liquids, includes a piston/cylinder arrangement with a low pressure side provided with a low pressure connection and a high pressure side provided with a low pressure connection and a supply connection, as well as an intensifier piston constructed as a double diameter piston arranged between the low pressure side and the high pressure side. The pressure intensifier further includes a valve slide member which alternatingly connects the low pressure connection to a pressure source and a negative pressure source, wherein the control valve is connected through a control line to the piston/cylinder arrangement, so that the pressure in the control line acts on a first side of the valve slide member. The control valve is configured such that a constant force acts on a second side of the valve slide member.