Abstract:
The present invention provides a Type 3 pressure vessel comprising a polar boss that is attached to a metallic liner and provides reinforced static strength, fatigue strength, endurance, chemical resistance and/or corrosion resistance of the liner orifice or neck region. In particular, the material of the polar boss has higher static strength, fatigue strength, endurance, chemical resistance and/or corrosion resistance relative to that of the liner material.
Abstract:
Ein Druckbehälter zur Aufnahme mindestens eines Fluidmediums, mit einem ersten Mantel (1) und einem den ersten Mantel (1) zumindest teilweise umfassenden zweiten Mantel (3), wobei der erste Mantel (1) zumindest an seinem einen Ende ein Kragenteil (5) aufweist, das einen Festlegekörper (15) umfasst, der eine Öffnung (13) für die Medienzu- und -abfuhr bildet, ist dadurch gekennzeichnet, dass innerhalb des Behälters ein die Öffnung (13) umgebender Stützkörper (19) in Form eines geteilten Ringes vorgesehen ist, der eine an die gewölbte Form der sich an das Kragenteil (5) anschließenden Innenseite des ersten Mantels (1) angepasste Anlagefläche (39) aufweist, die durch eine Andrückeinrichtung (43, 45) an den ersten Mantel (1) anpressbar ist.
Abstract:
Eine Hydraulikvorrichtung mit einem Gehäuses (10) und einem daran angeordneten Verschlusselement (7), ist erfindungsgemäß dadurch gekennzeichnet, dass das Verschlusselement (7) mit dem Gehäuse (10) mittels einer Torsionalschweißung verbunden ist.
Abstract:
An apparatus for determining the weight of a payload (44) in a bucket (24) of a machine (20) where the bucket (24) is attached to a chassis (26) of the machine (20) by a linkage. The apparatus comprises an energy storage device (82) for storing potential energy of the bucket (24), payload (44), and linkage when the bucket (24) is moved from a first suspended position to a second suspended position. A mechanism (86) provides physical data corresponding to a physical change in the energy storage device (82) caused by storage of the potential energy and a processor (116) calculates the weight of the payload (44) using the physical data.
Abstract:
A lightweight, optimally efficient, easily serviced, piston-in-sleeve high pressure accumulator is provided. The accumulator includes one or more cylindrical composite pressure vessel separate end cap manifolds. A piston slidably disposed in a thin impermeable internal sleeve in the accumulator separates two chambers, one adapted for containing a working fluid and the other adapted for containing gas under pressure. Gas is provided in a volume between the impermeable internal sleeve and the composite pressure vessel wall. Additional gas is optionally provided in gas cylinders. Further components are provided for withstanding harmful effects of radial flexing of the composite vessel wall under high pressures, and from stresses present in use in mobile applications such as with a hydraulic power system for a hydraulic hybrid motor vehicle.
Abstract:
A hydraulic accumulator, in particular a low-pressure accumulator, has an accumulator housing (2) and a separating element, in particular in the form of an accumulator bladder (22) separating two media chambers (3, 5) in the housing (2). The accumulator housing (2) is formed of at least two shells (8, 10) welded together at their opposing end regions (24).
Abstract:
A hydraulic accumulator includes a cylindrical body or housing having male or external threads on each end and shoulders proximate the ends of the threads nearer the center of the cylindrical body or housing that act as stops. An end cap having internal or female threads is disposed at one end of the accumulator. The accumulator may be threaded into a manifold or control valve assembly or it may include a second threaded end cap having an access, i.e., inlet/outlet, port. A piston resides within the accumulator and is biased by a pair of compression springs toward the manifold, control valve body or second threaded end cap.
Abstract:
A reduced weight and repairable piston accumulator. The accumulator includes a load bearing metallic cylinder with removable end caps secured thereto with slip flanges for allowing repairability and for achieving the required cycle life. The cylinder serves as the surface on which the piston slides and is designed such that it sustains the axial stress induced by pressurization of the accumulator. A composite over wrapping is designed such that it sustains the stress in the hoop (radial) direction. A stress transitioning bushing can be provided for transitioning hoop stresses between the overwrap and the slip flange. When combined with the cylinder, the fibers of the composite wrap will not be placed in shear and thus will not fatigue in the same manner as some prior art designs.
Abstract:
A pressure vessel for receiving at least one fluid medium has a first shell (1) and a second shell (3) at least partially encompassing the first shell (1). The first shell (1) has, at least at one of its ends, a collar portion (5) having a securing element (15) that forms an opening (13) for supplying and discharging the medium. A support element (19) in the form of a split ring surrounds the opening (13), is provided inside the container and has a contact surface (39) adapted to the curved shape of the first shell (1) inner side attached to the collar portion (5). The contact surface is able to be pressed onto the first shell inner side attached to the collar portion (5). The contact surface is able to be pressed onto the first shell (1) using a pressing device (43, 45).