An electrically powered hydraulic fracturing system having pumps for pressurizing fracturing fluid, piping for carrying fracturing fluid, and vibration reducing equipment for use with the piping. The vibration reducing equipment includes helical coils that support the piping. The coils are made of a wire rope made of strands of steel cable twisted together. Grooved fittings are provided on some piping connections, and which allow pivoting between adjacent fluid conveyance members. Swivel joints are strategically located in the piping which allow rotational flexing between adjacent sections of the piping; thereby attenuating vibration in the piping but without stressing the piping.

A manifold through which a fluid is adapted to flow. The manifold includes an elongated member at least partially defining a fluid chamber through which the fluid is adapted to flow, a longitudinal axis, and an interior surface; a fluid liner disposed within the fluid chamber and adapted to dynamically respond to pressure fluctuations within the fluid chamber as the fluid flows therethrough; and a wear indicator positioned radially between the interior surface of the elongated member and the longitudinal axis. The fluid liner is subject to wear and/or erosion due to the flow of the fluid therethrough and/or the dynamic response of the fluid liner to the pressure fluctuations within the fluid chamber. The wear indicator is adapted to indicate the degree to which the fluid liner has been subjected to the wear and/or erosion.

An apparatus for controlling flow induced vibrations in a section of pipeline caused by a flow of liquid therethrough comprising: a sensor for measuring flow induced vibrations of the section of pipeline; a mechanical means for adjusting the natural frequency of the section of pipeline; wherein the mechanical means automatically adjusts the natural frequency of the section of pipeline based on the measured vibration in order to reduce the flow induced vibration.

The invention relates to line elements (600) consisting of a multi-layer inner element (IE) and an outer element (AE), wherein the inner element (IE) and the outer element (AE) are in contact with each other at points, at lines, over part of the surfaces thereof, or over the full surfaces thereof. Furthermore, a frictional contact protection means extending over the component length is provided, or a frictional layer (121) is provided in the contact region of the inner element (IE) and the outer element (AE). The wear of the outer element (AE) caused by friction can thereby be minimized.

Proposed is a line assembly (1), including: a metal hose (2) that is corrugated at least in some segments; and an inner component (3), which is arranged radially inside the metal hose at least over a partial length of the metal hose; the line assembly being distinguished by at least one coupling element (4, 4), which coupling element is arranged between an outer border (2d) of the metal hose (2) and an outside surface (3a) of the inner component (3) and which coupling element is designed to damp the metal hose (2) by means of mechanical coupling to the inner component (3).

A damping device damps or prevents pressure shocks, such as pulsations, in hydraulic supply circuits, preferably in the form of a silencer, and has a damping housing (1) surrounding a damping chamber (19), with a fluid inlet (11) and a fluid outlet (13). A fluid receiving chamber (19) extends between the fluid inlet and fluid outlet. During operation of the device, a fluid flow coming from the fluid inlet (11) in a through-flow direction (15) traverses the damping chamber (19) toward the fluid outlet (13). Parts of the fluid receiving chamber (19) extend in a direction transverse to the through-flow direction (15). The fluid receiving chamber (19) is located directly adjacent to the fluid inlet (11) and the fluid outlet (13).

A transmission arrangement includes a hydrostatic transmission in which a hydrostatic unit functioning as a pump is hydraulically connected to a hydrostatic unit functioning as a motor in order to transfer drive power. The arrangement is configured with structure for damping hydraulic pressure fluctuations. The structure is assigned to a hydraulic line connecting at least one of the hydrostatic units.

Apparatus and a method for sampling fluid flow quality. The apparatus includes a flow channel through which the fluid is flowing, a pressure sensor provided in said flow channel and adapted to detect a pressure in said flow channel, a membrane provided downstream or upstream said pressure sensor in said flow channel and adapted to induce a pressure modification, and a control unit connected to said pressure sensor and said membrane. The control unit is configured to activate said membrane so as to induce said pressure modification when said detected pressure deviates from a predetermined pressure interval, thereby neutralizing any pressure fluctuation in said flow channel.

An aspect of the present disclosure includes a compressor system operable for compressing a working fluid. An integrated muffler and pressure pulse dampener (IMPPD) is operable for reducing pressure pulsations and attenuating noise in the working fluid. The IMPPD system includes an elongate axial passageway bounded by an outer wall having a plurality of apertures extending therethrough. A first portion of the working fluid enters through the central elongate section and a second portion of the working fluid passes through the pertures. The first and second portions of working fluid merge together downstream of the IMPPD inlet and cause a dampening of pressure pulsations propagating within the working fluid.

A damping device, in particular for damping or avoiding pressure surges, such as pulses, in hydraulic supply circuits, preferably in the form of a silencer, having a damping housing which surrounds a damping chamber and has at least one fluid inlet (3) and at least one fluid outlet (5) and a fluid receiving chamber (7) which extends between the fluid inlet and the fluid outlet, wherein, during operation of the device, a fluid flow crosses the damping chamber in a throughflow direction (11), coming from the fluid inlet (3) in the direction of the fluid outlet (5), and wherein at least parts of the fluid receiving chamber (7) extend in at least one extent direction transversely with respect to the throughflow direction (11), is characterized in that the fluid receiving chamber immediately adjoins the fluid inlet (3) and the fluid outlet (5) and in that a guide element (51) is provided in the damping chamber, the fluid flow being able to flow against the guide element and the guide element changing the flow speed of the flow at least in sections.