摘要:
One embodiment provides a reservoir tank, including: a reservoir main body having a reserving chamber which reserves a hydraulic fluid, a hydraulic fluid pouring port which is provided at an upper portion of the reservoir main body, and a hydraulic fluid supply port which is provided at a lower portion of the reservoir main body. A groove-like recess portion is formed on a bottom surface of the reservoir main body. As in a projection in which the hydraulic fluid pouring port is projected onto a bottom surface side of the reservoir main body, the recess portion is disposed between the hydraulic fluid pouring port and the hydraulic fluid supply port.
摘要:
An accumulator (100) for a hydraulic system, wherein the accumulator (100) comprises a liner (110), a piston (140) and a housing (200), that defines a pressure chamber (PC), for receiving hydraulic fluid at high pressure, wherein the piston (140) is biased towards an end position of the pressure chamber (PC) for interacting with the hydraulic fluid in the pressure chamber (PC), and the piston (140) is movable in a predetermined range for accumulating hydraulic fluid. The accumulator has at least one outlet port (111) in a sidewall (112) of the liner (110), which outlet port (111) is covered by the piston (140) in the predetermined range and is uncovered when the piston (140) has moved a predetermined distance from the end position. A hydraulic system is also provided that comprises the above accumulator and an all-wheel drive system comprising the above hydraulic system. A method for de-airing an accumulator according to above is also provided.
摘要:
A combined oil tank and oil accumulator vessel (1) having an internal chamber, and a moveable spring-loaded barrier (3) within the internal chamber defining a low pressure oil tank portion (10) and a high pressure accumulator portion (14) separated by the moveable barrier (3). The combined oil tank/accumulator provides the advantages of more consistent oil flow supply as a result of the integral accumulator, but with reduced weight, reduced oil volume requirements, and constant oil levels when compared with conventional external accumulators.
摘要:
2. Bei einem Druckspeicher mit einer innerhalb eines Speichergehäuses 1 längs verfahrbaren, aus Hauptkolben 17 und relativ zu diesem bewegbarem Hilfskolben 19 gebildeten Kolbenanordnung, die eine Fluidseite 25 des Speichers von seiner Gasseite 23 über eine Dichteinrichtung abdichtend trennt, welch letztere ein Trennmittel 43 mit Tiefenfiltrationseigenschaft, weitere Dichtelemente 47 sowie eine an die Innenwand des Speichergehäuses 1 angrenzende Kammer 35, 39 für ein strömungsfähiges Dichtmedium aufweist, das durch den Hilfskolben 19 vorspannbar ist, der für eine das Volumen der Kammer 35, 39 verkleinernde Relativbewegung mit dem Druck der Gasseite 23 und der Kraft eines Kraftspeichers 33 beaufschlagt ist, ist der Hilfskolben 19 vollständig integriert in einer zur Gasseite 23 offenen Führung 21 des Hauptkolbens 17 geführt, in welchem mittels des Hilfskolbens 19 ein Raum 35 einschließbar ist, der Teil der das strömungsfähige Dichtmedium aufnehmenden Kammer 35, 39 bildet.
摘要:
For a hydraulically actuated device a hydraulic power cylinder (30) with an actuator (14) slidably received for reciprocation within the cylinder (30) and a piston (68) slidably received for reciprocation within a sleeve (54) of the actuator (14) and defining a gas chamber(66) on one side of the piston (68) and a hydraulic fluid chamber (48) on the other side of the piston (68) so that the maximum pressure in the hydraulic fluid chamber (48) is limited as a function of the force of compressed gas in the gas chamber (66) acting on the piston (68). In this way, the maximum system pressure is a function of and substantially corresponds to the pressure of the compressed gas within the gas chamber (66) and acting on the piston (68). Desirably, the pressure of the compressed gas in the gas chamber (66) can be readily changed to change the maximum hydraulic fluid pressure.