Abstract:
The invention involves a conduit connection assembly, characterised in that the assembly comprises a first conduit part (201) and a second conduit part (401), adapted to be assembled to form a conduit connection delimiting a fluid conducting volume (V1), wherein one of the first and second conduit parts (201, 401) presents a connection surface (202, 402) adapted to face the other of the first and second conduit parts (201, 401), wherein a pressure pulse reducing volume (6, 601, 602) is at least partly formed in the connection surface (202, 402).
Abstract:
Eine Dämpfungsvorrichtung, insbesondere zum Dämpfen oder Vermeiden von Druckstößen, wie Pulsationen, in hydraulischen Versorgungskreisläufen, vorzugsweise in Form eines Silencers, mit einem einen Dämpfungsraum umgebenden Dämpfungsgehäuse (1), das mindestens einen Fluideinlass (35) und mindestens einen Fluidauslass (41) sowie einen zwischen Fluidein-(35) und Fluidauslass (41) sich erstreckenden Fluidaufnahmeraum aufweist, wobei im Betrieb der Vorrichtung ein Fluidstrom in einer Durchströmungsrichtung (11) vom Fluideinlass (35) kommend in Richtung des Fluidauslasses (41) den Dämpfungsraum durchquert und wobei sich zumindest Teile des Fluidaufnahmeraums in mindestens einer Ausdehnungsrichtung quer zur Durchströmungsrichtung (11) erstrecken, ist dadurch gekennzeichnet, dass in Durchströmungsrichtung (11) hintereinander mehr als ein Fluidaufnahmeraum angeordnet ist und dass der stromaufwärts erste und der stromabwärts letzte Fluidaufnahmeraum unmittelbar an den Fluidein-(35) bzw. den Fluidauslass (41) angrenzen.
Abstract:
A pulsation control device, coupled to a reciprocating pump with either suction or discharge piping, and having a spherical or cylindrical interior chamber that includes a curved baffle with a pressure drop device, e.g. a choke, separating the interior chamber into two volumes, is disclosed. The pulsation control device forces fluid flow through the pressure drop device, which provides an effective fluid passage that is smaller than the fluid passage for one or both of the inlet to and/or the outlet from the interior chamber. Fluid entering the pulsation control device reacts with fluid contained within the volume thereof on both sides of the baffle. The baffle attenuates pressure pulses within fluid passing through the interior chamber and improves acoustic pulsation energy reduction. The pressure drop device dampens high frequency pulsation magnitudes of pressure pulses within fluid passing through the interior chamber.
Abstract:
This invention relates to a device (1) for reducing flow noise. In order to achieve a low flow noise, the device comprises inlet apertures (3) for receiving a fluid flow, chambers (5) into which one or more inlet apertures (3) open up, a cross-sectional area of a single chamber (5) being larger than a combined flow cross-sectional area of the inlet apertures (3) opening up thereto, and cham¬ ber-specific outlet apertures (7) for forwarding the fluid flow from the chamber (5), a flow cross-sectional area of each outlet aperture (7) being smaller than the cross-sectional area of the chamber (5), and the combined flow cross- sectional area of all outlet apertures (7) of the single chamber (5) being larger than the combined flow cross-sectional area of the inlet apertures (3) opening up into said chamber (5).
Abstract:
A medical fluid infusion system (10) including: a fluid pathway (16) for transporting a pulsatile flow of fluid; a dampening element (80) in communication with the fluid pathway, the dampening element configured to actively dampen pressure fluctuations of the pulsatile flow to smoothen the pulsatile fluid flow, the dampening element operable in any orientation; and a fluid flow sensor (50) disposed along the fluid pathway downstream of the dampening element to measure the flow rate of the smoothened fluid flow.
Abstract:
A fluid transfer pipe (1) comprising opposed ends (3, 5) adapted to be connected to respective pipework, the pipe (1) comprising a longitudinal axis (9), the transverse cross section of the pipe (1) varying along the length of the pipe such that the distance radially outwardly from the longitudinal axis (9) to the inner wall of the pipe (1) is non linear along at least part of the length of the pipe. A fluid attenuator comprising such a pipe is also disclosed.
Abstract:
A system, apparatus, and method for improving performance of a pressurized system having a natural gas reciprocating compressor pump. The sound attenuation device has a pipe having an outlet connected to one or more tuned loops, where each loop includes a junction that divides a flow into two pipes. Another junction reconnects the two pipes to an outlet pipe, where the outlet pipe of the loops is coupled to the former junction of the loops. The loop has an inlet coupled to the outlet of a reciprocating compressor cylinder. Between the branches one of the branches is longer than another branch by an amount equal to a wavelength within a range of wavelengths of vibrations propagating in a fluid discharged from the reciprocating compressor pumping system.
Abstract:
An expansion hose adapted for smoothing pressure fluctuations in a hydraulic system having an inner tube, a textile reinforcement, and an outer cover. The reinforcement includes a plurality of yarns, which in turn have a plurality of filaments of first fiber material type and a plurality of filaments of second fiber material type, with first fiber type having elongation at break higher than the second fiber type by at least about 4% elongation. The expansion hose may be part of an assembly including at least one fitting, coupling, bracket, hose clamp, or other hose.
Abstract:
An apparatus for reducing pressure spikes in a fuel line having a shut-off valve is provided. The apparatus comprises a body housing a biasing member and a moveable separation member. The body has first, second, and third chambers. The first and second chambers are coupled to upstream and downstream sides of the fuel line, respectively. The third chamber is coupled to a return line. When the shut-off valve is open, the separation member is biased toward the first chamber and separates the first and second chambers. When the shut-off valve is closed, the separation member expands the first chamber and places it and the third chamber in fluid communication once the separation member has gained a significant speed. The expanded first chamber accumulates fuel and the third chamber accumulates and vents the fuel such that transient pressure spikes are reduced and unlikely to damage a turbine system.
Abstract:
Described is a device for reducing hydraulic-fluid oscillation in a hydraulic system, in particular in a hydraulic system of an aircraft, wherein the hydraulic system comprises a pump (2) that is driven by a drive (1), which pump (2) conveys a fluid to a hydraulic line (3) by pressure pulsation. According to the invention the device comprises an actuator (5), arranged in the hydraulic line (3), which actuator (5) is provided for generating pressure pulsation that compensates for the pressure pulsation of the pump (2).