Abstract:
An accumulator having a housing, a spring-loaded liquid inlet-outlet valve, a gas charging and release valve, and a gas-liquid separator in which a top is provided releasably connected to the housing for servicing the accumulator from the top. The top is slidably insertable into the top of the housing and a releasable lock is positioned externally of the top for locking the top in the housing. The lock is prevented from releasing while the top is held in an upward position by pressure in the housing and can only be released when the pressure in the housing is reduced and the top is moved downwardly. The locking means includes a notch in the exterior of the housing, a locking ring, and a backup shoulder on the exterior of the top. An anti-extrusion ring is bonded on the bottom edge of the top and slidably engages the interior of the housing for preventing damage to the separator. Preferably the top includes a dome and an annular flange extending around the lower end of the dome. The liquid inlet-outlet valve is a poppet valve in which the valve element is enclosed by a resilient coating with an annular resilient ring bonded to the coating and positioned to seat on the valve seat. The separator may be a bag separator or a cylindrical solid float having a tapered bottom with a plurality of axially extending recesses about its outer periphery for preventing the float from sticking on the interior of the housing.
Abstract:
Offenbart ist eine hydraulische Steueranordnung für ein Hubwerk mit zumindest einem Hubzylinder, insbesondere einer mobilen Arbeitsmaschine, wobei mindestens ein Druckraum gebildet wird, der zur Beaufschlagung des Kolbens mit einem Arbeitsdruck an eine Arbeitsleitung angeschlossen ist. Diese ist mit einem Kolbenspeicher und einem weiteren Hydrospeicher zur Druckregelung des Hubzylinders verbunden, wobei der Hydrospeicher einen höheren gasseitigen Vorspanndruck als der Kolbenspeichers aufweist.
Abstract:
An expansion tank includes two half-shells coupled to each other, an inner flexible membrane suited to divide the inside of the casing in two compartments, a counter cap made of a thermoplastic material, a pipe fitting suited to provide a connection and having a first tubular portion and a second portion in the shape of a flat ring that are made of a thermoplastic material, wherein the second ring-shaped portion is joined to the counter cap at the level of an opening in the tank.
Abstract:
A spindle supporting box structure, wherein longitudinal parts forming both ends of lateral parts at each of right and left longitudinal side faces facing, with a spindle therebetween, in a direction almost perpendicular to longitudinal side faces facing in a front-back direction are formed by longitudinal tubular members having suitable flexural rigidity. A damping structure wherein required frameworks of structures are formed by tubular members and wherein concrete is filled in the tubular members and then solidified. As an alternative, a powdery damping material or a jelly damping material is airtightly sealed in the tubular members. An inner space of one or more of the tubular members is made into a gas pressurized tank wherein a balance cylinder is connected to the gas pressurized tank and wherein the gas in the gas pressurized tank directly acts on a cylinder chamber of the balance cylinder.
Abstract:
In a pressure accumulator having a cylindrical housing, a coaxial perforated pipe supported within the housing through which pressure medium flows and an elastic tubular partition dividing the space between the housing and the pipe into an outer annular gas chamber and an inner chamber. The ends of the cylindrical housing have recessed sections and tapered end rings which press the elastic tube against the recessed sections to seal the accumulator. The rings also support the perforated tube and have means for fitting the accumulator in a pressure line.