Abstract:
The disclosure relates to an hydraulic accumulator, in particular a diaphragm accumulator, having an accumulator housing and a separating element disposed therein, which separates two media spaces from each other, wherein a weld seam is formed by a laser or electron beam welding process without any filler materials, in that at least a part of the wall parts delimiting the transition point are melted to form the weld seam, which closes off the transition point towards the surroundings, in a manner that is free of protrusions with respect to an outer circumferential surface of a connection element.
Abstract:
The Pre-Pressurized adaptive Banjo-Bolt accumulator valve device is provided, the device being configured to be installed in a Banjo bolt equipped-vehicle's brake system. The Pre-Pressurized adaptive Pre-Pressurized adaptive Banjo-Bolt accumulator valve device is provided includes a housing having an internal bore, outer threads, and a passageway extending from the outer surface of the housing to the internal bore, the internal bore containing brake fluid. The Pre-Pressurized adaptive Banjo-Bolt accumulator valve device is provided also includes a cap, adapted to be fastened to the housing and retain a primary seal. The cap defines the chamber therein, the chamber holding an elastomeric adaptive insert. The Primary seal provides a barrier between brake fluid in the brake system, and the elastomeric insert held within the chamber. A secondary o-ring seal is provided to prevent brake fluid leakage should the primary seal fail and entrapment of compressed elastomeric adaptive insert to initiate pre-pressurization of the membrane when the cap is tightened during assembly.
Abstract:
A heater system for a pressurizable and fluid-retaining vessel is disclosed. The heater system includes a frame assembly, a heater element, a temperature controller, and an insulation member. The frame assembly includes a first portion, which is structured and arranged to at least partially overlay the pressurizable and fluid-retaining vessel. The frame assembly includes a second portion, which is structured and arranged to mountably couple to the machine. The heater element is adapted to heat the pressurizable and fluid-retaining vessel. The heater element is supported within the first portion of the frame assembly. The temperature controller is adapted to regulate temperature of the pressurizable and fluid-retaining vessel. The insulation member encloses the pressurizable and fluid-retaining vessel and the heater element.
Abstract:
A pressure accumulator (10) to establish the necessary power to drive and operate external equipment is described, such as hydraulic and/or mechanical systems comprising a main body (12) with an inner, longitudinal, main chamber (14) that is divided into several sub-chambers. The inner, main chamber (14) comprises at least three sub-chambers (14a, 14b, 14c) that are separated from each other with the help of mutual, intermediate pistons (16,18), where the first of said chambers is a compensating chamber (14a) arranged to take up the same pressure as the surroundings, the second of said chambers is a gas expansion chamber (14b) encompassing a gas generator (20) with an initiator/detonator (22), and the third of said chambers is a pressure chamber (14c) arranged to be pressurized with the help of the gas expansion chamber (14b) and to exert a force on the external equipment.
Abstract:
A device for fluid power recuperation with reduced heat losses and increased efficiency of fluid power recuperation combined with better manufacturability and possibility of using off-the-shelf gas receivers (bottles). The device comprises at least one hydropneumatic accumulator, containing in its shell a fluid port communicating with the fluid reservoir of the accumulator separated from the gas reservoir of the accumulator by a movable separator. The gas reservoir of the accumulator communicates via a gas port with at least one gas receiver containing a regenerating heat exchanger made in the form of a metal porous structure. The aggregate volume of the material of the regenerating heat exchanger is in the range from 10 to 50% of the internal receiver volume and the aggregate area of the heat exchange surfaces of the regenerating heat exchanger reduced to the aggregate internal receiver volume exceeds 2000 cm2/liter. At gas compression or expansion the heat exchange between the gas and the regenerating heat exchanger occurs at small average distances between the gas and the heat exchange surfaces and on a large heat exchange area, and, therefore, with smaller temperature differentials, which increases reversibility of the heat exchange processes and recuperation efficiency. The proposed device has the following properties:—reduced heat losses and increased efficiency of fluid power recuperation;—better manufacturability;—possibility of using off-the-shelf gas receivers of any type in the device.
Abstract:
Disclosed is a diaphragm having a flexible film portion and an outer peripheral flange portion integrally provided on the peripheral edge of the film portion, said outer peripheral flange portion being provided between and held by a first housing and a second housing, wherein the film portion is prevented from rising upward when the diaphragm is attached to the housings. The outer peripheral flange portion has a first pressed surface which is one surface of the diaphragm in the thickness direction and which is in close contact with the first housing, and a three-dimensional shape composed of a projected portion or a recessed portion, on the first pressed surface. When the outer peripheral flange portion is attached to the first housing and the second housing while being compressed and deformed therebetween, the three-dimensional shape defines voids in the thickness direction between the outer peripheral flange portion and the first housing.
Abstract:
A pressure vessel includes: two housing-flange segments extending from axially-opposite end portions of a housing segment, respectively; a diaphragm segment disposed in the housing segment, having axially-opposite end portions; two diaphragm-flange segments extending from the end portions of the diaphragm segment, respectively; and two water fitting units each having a fitting-flange segment that cooperates with an adjacent one of the housing-flange segments to clamp an adjacent one of the diaphragm-flange segments therebetween, and fluidly communicating a water chamber that is defined in the diaphragm segment with an external environment via a port.
Abstract:
A hydropneumatic accumulator with a flexible porous filler intended for fluid power recuperation in hydraulic systems with a high level of pulsations includes a shell where a gas port and a fluid port are connected, respectively, with a gas reservoir and a fluid reservoir of variable volume separated by a movable separator. The flexible porous filler fills the gas reservoir so that the separator movement reducing the gas reservoir volume compresses said filler. The filler is connected with internal walls of the gas reservoir with the possibility of stretching the filler at the separator movement increasing the volume of the gas reservoir. The accumulator contains means of protection of the filler boundary layer against rupture made with the possibility of reducing local deformations of the boundary filler layer in case of jerks of the separator. Development of residual deformations of the filler during multiple recuperation cycles and destruction at non-uniform motion of the separator with strong jerks are prevented.
Abstract:
A pressure accumulator (10) to establish the necessary power to drive and operate external equipment is described, such as hydraulic and/or mechanical systems comprising a main body (12) with an inner, longitudinal, main chamber (14) that is divided into several sub-chambers. The inner, main chamber (14) comprises at least three sub-chambers (14a, 14b, 14c) that are separated from each other with the help of mutual, intermediate pistons (16,18), where the first of said chambers is a compensating chamber (14a) arranged to take up the same pressure as the surroundings, the second of said chambers is a gas expansion chamber (14b) encompassing a gas generator (20) with an initiator/detonator (22), and the third of said chambers is a pressure chamber (14c) arranged to be pressurised with the help of the gas expansion chamber (14b) and to exert a force on the external equipment.
Abstract:
The invention relates to a device for damping discharge pulsations in a medium being pumped through a system of pipes in a pulsating manner by a displacement pump that operates with a specific discharge characteristic, which device at least comprises a housing with an at least partially gas-filled damping chamber having a certain volume present therein, which housing can be connected to the system of pipes, in such a manner that an interface layer is present between the medium and the gas in the damping chamber during operation, which damping chamber has a desired gas pressure characteristic that partially depends on the discharge characteristic of the displacement pump, wherein the gas volume that is present in the damping chamber varies in time between a minimum compression volume and a maximum expansion volume under the influence of said discharge pulsations during operation, as well as adjusting means that supply gas to or discharge gas from the damping chamber The present invention provides a simpler and less complicated construction both for pulsation dampers provided with a separating element and for air boxes not provided with a separating element. In order to achieve an optimised damping of the discharge pulsations, the adjusting means are according to the invention arranged for determining the desired gas pressure characteristic in the damping chamber on the basis of the discharge characteristic of the displacement pump and determining the current gas pressure characteristic in the damping chamber, and comparing the current gas pressure characteristic as determined with the desired gas pressure characteristic of the damping chamber and determining the current position of the interface layer in the damping chamber on the basis of said comparison.