Abstract:
Eine Sicherheitsvorrichtung mit einer Anschlussstelle (21) für einen Druckspeicher (1), der über die Anschlussstelle (21) gasseitig mit einer Bersteinrichtung (55) verbunden ist, ist dadurch gekennzeichnet, dass die Bersteinrichtung (55) mittels eines ansteuerbaren Kraftelements (73) auslösbar ist, die im ausgelösten Zustand eine gasseitige Entleerung des Druckspeichers (1) erlaubt.
Abstract:
Dispositif d'accumulation de pression hydraulique comprenant un accumulateur (2) présentant une chambre contenant un gaz sous pression (4), séparée par une membrane mobile (8) d'une chambre contenant le fluide (6), caractérisé en ce qu'il comporte une canalisation externe (32) reliée à la chambre à gaz (4), équipée de systèmes de sécurité prévus pour s'ouvrir en cas d'agressions appliquées sur cette canalisation.
Abstract:
본 발명은 건설기계의 유압시스템에 관한 것으로, 더욱 상세하게는 복수의 액추에이터가 구비되는 건설기계에 있어서, 각 액추에이터마다 펌프/모터가 구비되고, 각 액추에이터는 해당 펌프/모터의 제어에 의해 작동되며, 액추에이터에 유입되는 유량과 배출되는 유량의 유량차이에 대응하도록 작동유를 어큐뮬레이터에 저장하거나 어큐뮬레이터에서 보충 받도록 하는 건설기계의 유압시스템에 관한 것이다. 대표도: 도 5
Abstract:
A gas spring accumulator comprising:- a housing (2, 3) provided with an inlet (20); and - a flexible diaphragm (4) dividing the interior of the housing into a working chamber (7) which is exposed to system pressure via the inlet, and a gas chamber (6); characterised in that the housing includes a diaphragm element (4) having one side exposed to system pressure via the inlet (20) and an opposite side exposed to a further chamber (13), a first non-return valve (17) arranged to admit atmospheric gas into the further chamber (13), and a second non-return valve (29) arranged to admit gas from the further chamber (13) into the gas chamber (6).
Abstract:
Methods and apparatus to charge accumulators are described An example system to charge an accumulator apparatus (100) includes a piston (104) disposed within a housing (102) to define a first chamber adjacent a first side (106) of the piston and a second chamber adjacent a second side (108) of the piston. A fill probe (202) having a body and a passageway between a first end (306) of the fill probe and a second end (308) of the fill probe removably couples to the piston to fluidly couple to the passageway of the fill probe to the second chamber of the housing when the accumulator is in a charging condition. A valve (142) is fluidly coupled to the piston to enable fluid flow to the second chamber of the housing via the piston (104) when the fill probe is coupled to the piston (104).
Abstract:
Die Erfindung betrifft einen Hydrospeicher (1) zur Aufnahme mindestens eines Teilvolumens einer unter Druck stehenden Flüssigkeit, insbesondere hydropneumatischer Speicher, wobei der Hydrospeicher (1) ein Gehäuse (12) mit mindestens einer Anschlussstelle (14) zum Anschließen des Hydrospeichers (1) an eine Hydraulikeinrichtung (10) aufweist, dadurch gekennzeichnet, dass mindestens ein Datenspeicher (28, 32, 34) derart Bestandteil des Hydrospeichers (1) ist, dass mittels eines außerhalb des Hydrospeichers (1) angeordneten Lese- und/oder Schreibgeräts (30) die in dem Datenspeicher (28, 32, 34) gespeicherten Daten aus dem Datenspeicher (28, 32, 34) elektronisch auslesbar sind, sowie eine Hydraulikeinrichtung (10) mit einem solchen Hydrospeicher (1) und eine zugehörige Datenübertragungsvorrichtung.
Abstract:
An underwater apparatus for operating underwater equipment, the underwater apparatus comprising a body (102), a fluid chamber (160) within the body (102) for selectively containing power fluid, a piston assembly (130,112,120) movably disposed within the body (102), a gas chamber (170) within the body (102) for containing gas under pressure to move the piston assembly (130,112,120) to move the power fluid out of the fluid chamber (160), a further chamber (180) for containing gas at low pressure for the piston assembly (130,112,120) to move within characterised in that said piston assembly (130,112,120) comprises a cavity (122) for containing gas under pressure for assisting in movement of said piston assembly (130,112,120 ), and the cavity (122) in fluid communication with said gas chamber. The fluid gas in the gas chamber and the low pressure gas in the further chamber are divided by a piston, such that this acts as an accumulator.
Abstract:
Die Erfindung betrifft ein Verfahren zum Herstellen von Kolbenspeichern mit einem Speichergehäuse (10) und einem im Speichergehäuse (10) längsverfahrbaren Trennkolben, der innerhalb des Speichergehäuses (10) zwei Arbeitsräume voneinander trennt, das endseitig von jeweils einem Deckelteil (20) verschlossen wird. Dadurch, dass an der einen Seite (40) des Deckelteils (20) dieses über den freien Längsrand (32) des Speichergehäuses (10) festgelegt wird, der zu diesem Zweck eine Zustellbewegung auf das Deckelteil (20) erfährt, sind die bekannten Herstellverfahren für Kolbenspeicher dahingehend weiter verbessert, dass unter Vermeidung der sonst üblichen Gewindeverbindungen eine funktionssichere und lagesichere Verbindung eines Deckelteils im Speichergehäuse eines Kolbenspeichers gewährleistet ist.
Abstract:
The invention relates to a hydraulic accumulator, especially a piston accumulator, comprising an accumulator housing (10) and at least one gas chamber (12) and a fluid chamber (14), these being separated from each other by a separating element (16). At least one of these chambers (12, 14) can be filled with a pressure medium or at least partially emptied of the same through at least one valve control unit (26) which has a switching valve (28, 30). The respective switching valve (28) is accommodated in a corresponding valve location (29), and can be moved in the direction of movement of the separating element (16) from an opening position into closing position and vice-versa. The aim of the invention is to avoid an expensive line network between the hydraulic accumulator and the valve control unit, so that sealing or leakage problems such as are common in a line network, never occur, To this end, the valve control unit (26) is accommodated in a valve block (24) which is independent from the housing (10), said valve block (24) has an additional valve location (31) for an additional switching valve (30) for performing another switching task, and the valve locations (29, 31) are configured essentially identically and are situated eccentrically in relation to the longitudinal axis (33) of the hydraulic accumulator for modular use of the switching valves (28, 30), which are configured as identical parts.
Abstract:
The invention relates to a device to save energy for hydraulically-operated tool shanks (70) using a piston-type accumulator having a housing (10) in which at least two longitudinally displaceable pistons (12, 14) are arranged and are each connected to each other by an adjacently opposite piston by way of a coupling part (16). Said coupling part is guided to be longitudinally displaceable in a partition wall (18) of the housing (10) which bounds two fluid chambers (20, 22) with the two adjacently opposite pistons. At least one of the pistons (12) bounds at least partially, close to a fluid chamber (20) on the opposite side, a pre-load chamber (30) with presettable internal gas pressure. A wider range of possible applications is achieved for hydraulically-operated tool shanks using the energy saving device according to the invention.