Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
  • F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
  • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
  • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
  • F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B43/00—Machines, pumps, or pumping installations having flexible working members
  • F04B43/0009—Special features
  • F04B43/0027—Special features without valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B43/00—Machines, pumps, or pumping installations having flexible working members
  • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
  • F04B43/028—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like flexible member
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
  • F04B53/10—Valves; Arrangement of valves
  • F04B53/1077—Flow resistance valves, e.g. without moving parts
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
  • F04B53/10—Valves; Arrangement of valves
  • F04B53/12—Valves; Arrangement of valves arranged in or on pistons

Definitions

• the present invention relates to a wave system and pump for transport of fluid, which pump by its mode of operation transfers fluid by means of oscillating movements which create wave-shaped impulses in the fluid which has to be transferred.
• the pump is based partly on a continuous transition between potential and kinetic energy, the sum of which at any time is constant.
• a pump according to the present invention may exist in different embodiments based on the inventive concept and individual examples are described below of how this concept is expressed in some specific embodiments. It should be noted, however, that the invention may be utilised in general for any kind of transfer of different types of fluid (liquids, gases and mixtures thereof).
• this is rather inexpedient, such as, for example, in the recovery of oil from subsea reservoirs located deep in the sea bed at great depths where the distance from a pump to the surface is so great that it is almost impossible to pump oil and gas without the occurrence of excessively high pressure loss in the pipeline between the pump in the reservoir and the surface.
• fluid is transported by means of a device such as a pump, which by means of an oscillator generates longitudinal waves in the fluid.
• An oscillator produces oscillations at a specific frequency preferably about a neutral position between a first and a second position.
• the oscillator consists of one or more inertial elements which accumulate kinetic energy and one or more energy-accumulating devices for potential energy. Due to the fluid's influence on the inertial element the oscillations will be damped after a time, i.e. the amplitude of the last oscillation will be reduced by a decrement relative to the amplitude of the previous oscillation. An amount of work according to the amplitude decrement must therefore be supplied to the damped inertial element.
• This work is supplied from an external power source which may be a motor of various types, such as a petrol motor, electric motor, gas turbine or the like which supplies energy to an oscillator possibly via a transmission device.
• a pump according to the present invention consists substantially of one or more oscillators which produce controlled, single-stage mechanical oscillations preferably about a neutral position at a specific frequency.
• the oscillator comprises one or more inertial elements and one or more energy-accumulating devices for potential energy, such as a spring, an elastic element, homopolar magnets, an enclosed compressible medium or the like.
• the inertial element is a body with specific mass, working area and moment of inertia which accumulates the system's kinetic energy E k .
• Spiral springs or other elastic devices are accumulators of the system's potential energy E p .
• E p ** m x 2
• the translatory oscillating power source moves at a specific frequency which, for example, may be between 1 and 100Hz.
• This movement with its kinetic energy is transferred to the closest energy-accumulating device (spring) which is compressed, attaining a potential energy.
• the energy- accumulating device then expands, releasing its potential energy to form kinetic energy, creating a translatory movement which in turn is transferred to an inertial element.
• the inertial element compresses the energy- accumulating device on the opposite side and kinetic energy is transformed into potential energy in this accumulating device which in turn pushes the inertial element back, transferring its potential energy to kinetic energy.
• the inertial element which is an accumulator of kinetic energy, and the elastic devices which are accumulators of potential energy thereby form an oscillating system.
• the inertial element moves with a relatively small amplitude and considering the frequency at which the element oscillates, the velocity (v) becomes low while the acceleration becomes high.
• the amplitude velocity is 0.628 m/s and the acceleration amplitude 40 g, where g is the acceleration of the force of gravity from 1500 to 5000 m/s.
• the acceleration here is high the reaction force becomes correspondingly high.
• the sum of potential and kinetic energy is constant.
• the inertial element's movement can be represented by a sine shape and the fluid's damping gives an amplitude decrement between two subsequent oscillations.
• the work which requires to be supplied to the system is thereby represented by the damped device's amplitude decrement.
• This work is provided by the external power source which transfers power to the oscillator from the energy-accumulating device as a translatorily oscillating movement.
• the object of the invention is to provide a wave system for transport of fluid, especially a pump of the type mentioned in the introduction, which is not encumbered by the disadvantages of standard pumps known in the prior art, particularly in connection with pumping of a fluid in a pipeline.
• fluid may be transferred through the pipeline over a substantial distance without the necessity of installing pumps to raise the pressure in the fluid as a result of pressure loss in the pipeline.
• a pump according to the present invention may be installed on a platform at the surface instead of down in the oil reservoir, which is the case with previously known pumps.
• a pump according to the present invention is further specified in the introductory part of the following independent claim with characterising features as indicated in the characterising part of the independent claim 1, and different embodiments of a pump according to the present invention are indicated in the following dependent claims.
• Figure 1 is a sectional schematic view from the side of the invention in a simple embodiment
• figure 2 is a diagrammatic representation of the movement of the oscillating system
• figure 3 is a sectional view from the side of a further embodiment of a pump according to the present invention
• figure 4a is a front view of a further embodiment of a pump according to the present invention
• figure 4b is a sectional view from the side of the embodiment illustrated in figure 4a;
• figure 5a is a sectional view from the side of a further embodiment of a pump according to the present invention;
• figure 5b illustrates section A-A from the embodiment illustrated in figure 5a
• figure 6 is a sectional view from the side of a further embodiment of a pump according to the present invention
• figure 7 is a front view of the embodiment illustrated in figure 6;
• figure 8 is a sectional view from the side of a further embodiment of a pump according to the present invention.
• figure 9 illustrates section A-A from the embodiment illustrated in figure 8;
• figure 10 is a sectional view from the side of a further embodiment of a pump according to the present invention.
• figures 1 la and 1 lb are a sectional view from the side of an embodiment of a valve system for use in connection with a pump; figure 12 is a sectional view from the side of a further embodiment of a valve system for use in connection with a pump.
• FIG 1 there is illustrated an oscillator with valve bodies 7 installed in a pipeline 6.
• the inertial element 1 is provided with valve bodies 7 which permit the inertial element 1 to pump surrounding fluid by means of movement in one direction only, while movement in the opposite direction takes place with less resistance and completely or almost without pump effect.
• the inertial element 1 abuts against the springs 2 and 3 which constitute the energy-accumulating devices for potential energy.
• An external oscillating force is further applied to the spring 2 from the element 5 with an amplitude A.
• the inertial element 1 and the springs 2 and 3 constitute an oscillator (an oscillating system) with, amongst other features, a natural . frequency E.
• the element 5 applies a compression to the spring 2 which gives it a potential energy.
• the oscillating linear translatory movement of the inertial element 1 is described in a sine shape where the damping constitutes an amplitude decrement D between two subsequent oscillations.
• the work required to create oscillations with the same amplitude is supplied from the power source 5 illustrated in figure 1.
• the springs 2 and 3 may be replaced by other energy-accumulating devices such as, e.g., closed devices with a compressible medium, magnets with the same polarity, elastic materials such as rubber etc. which have little loss due to internal frictional resistance.
• the power source 5 may be any kind of rotating or linear machinery which either directly or via a transmission device provides a translatorily oscillating movement with amplitude A at a specific frequency. The frequency can be optional.
• FIG. 3 illustrates a further embodiment of a pump according to the present invention where the inertial elements 1 and 2 form a part of an oscillator.
• a valve system 9 may be installed at the pump's inlet portion, as illustrated in fig. 3, at the outlet portion or in both places.
• the inertial element 1 is in the form of a cylinder with preferably rigid, immovable annular ribs 1', 1 ", 1'", and so on. Between the ribs 1 ', 1 ", 1'” respectively there are arranged rows of preferably rigid immovable ribs 2', 2", 2'" attached to an internal hub 2. The space between internal and external ribs is sealingly closed by annular seals 3.
• the inertial element has a velocity ⁇ 0.6 m/s and acceleration ⁇ 40g.
• the inertial elements 1 and 2 there are mounted energy- accumulating elements for potential energy, which in this case are represented in the form of springs 5 and 6. Oscillating energy is supplied via an external power source from the element 7 with amplitude A.
• the element 7 applies a compression to the spring 5 in the direction of the inertial element 1 which is moved towards the spring 6, thereby compressing it.
• the spring 6 is compressed against the backing plate 8, whereupon it expands with the result that the inertial element 1 moves in the opposite direction towards the spring 5.
• the valve system 9 is located at the pump inlet portion and is arranged in such a manner that the liquid flow moves only in one direction.
• FIGS 4a and b there is illustrated an inertial element 12 which is securely mounted on a torsion shaft 16 which produces an oscillating movement between two extreme points defined by 14 inside a pipe 15.
• the pipe is divided into two chambers by the partition 13.
• the torsion shaft 16 constitutes an accumulator of kinetic and/or potential energy and together with the inertial element 12 forms an oscillating system which can be represented in the same way as that illustrated in figure 2.
• the inertial element 12 there are further mounted valve bodies which permit a pump effect only when the inertial element 12 moves in one direction.
• the valve system 18 may be installed at the pump's inlet portion, outlet portion or in both places.
• FIGS 5a and b there is illustrated a further embodiment of a pump where a pipe 20 acts as an oscillator where the pipe walls constitute a relatively rigid element and the pipe's mass is an inertial element.
• the shaft 21 produces axial oscillations and via elastic non-stretchable elements 22 the pipe wall 20 is set in oscillating motion.
• the pump effect here is performed by the pipe wall 20.
• FIG. 6 A further embodiment of the present invention is illustrated in figures 6 and 7 where figure 6 illustrates a section of a pump device viewed from the side while figure 7 illustrates a cross section of the same pump device viewed from the left side of the pump device in figure 6.
• an inertial element 30 is mounted in a funnel-shaped part of a pipe 35 on a supporting device 31 which is located across the pipe's longitudinal direction.
• the supporting device 31 is located at each end against springs 32, 33 which constitute the energy-accumulating bodies for potential energy.
• Each of the ends of the supporting device 31 can be influenced by an oscillating force 34.
• the supporting element 31 will constitute an oscillating system which is influenced by the oscillating force 34.
• the oscillating system's motion will be as described in figure 2.
• the inertial element 30 is further surrounded by valve bodies 36, 37 which permit fluid to flow only in the direction 40. This occurs alternately, so that when the inertial element 30 moves upwards in figure 6, the valve bodies on the "out" side of the valve body 36 open while the valves on the "in” side of the valve body 37 are closed.
• the inertial element 30 then moves downwards in figure 6 and the valves on the "in” side of the valve body 36 are closed while the "out” valves in the valve body 37 are opened. Pumping thereby takes place alternately on the top and bottom of the inertial element 30.
• the funnel-shaped part of the pipe 35 is provided at each end with flanges 38 and 39 for mounting in another pipe installation.
• FIG. 8 A further embodiment is illustrated in figures 8 and 9 in a partial section from the side and a cross section from the left side in figure 8 respectively.
• an external housing 41 with an internal housing where membranes 41 are installed in the internal housing.
• an opening 42 which is connected with an external power source 43.
• the opening 42 is filled with a fluid which is exposed to an oscillating varying pressure from the source 43.
• This causes the membranes 40 to move in an oscillating manner in and out towards the centre of the internal housing.
• This provides a pump effect in the direction 45 for the fluid which is in the pipe 46.
• the membranes 40 together with the fluid in the opening 42 form an oscillating system with oscillating movement as described in figure 2.
• the membranes 40 in this case are the pumping elements for the fluid in the pipe 46 and the membranes' flexibility may be the energy-accumulating body.
• the fluid in the opening 42 may be capable of compression or it may have an expansion chamber which offers it the possibility of being the accumulating body which together with the membranes 40 forms the oscillating system.
• a further embodiment of the present invention is viewed in a section from the side in figure 10.
• An oscillator 1 is connected on a first side with a pump 2 via an elastic membrane 3 and on a second side with an external power source 4 via a spring 5 and dampers 6.
• the pump consists of an inertial element 7 and a pump housing 8 which further consists of an external housing 9 and an internal housing 10.
• valve bodies 1 In the walls of the internal housing 10 are mounted valve bodies 1 1.
• Figure 1 1 a illustrates an embodiment of a valve system where the valve bodies 51 are eccentrically rotatably mounted on axes of rotation 52 with a long and a short end on each side of the shaft 52.
• the valve bodies 51 close by rotating about the shafts 52 since the long end of the valve bodies 51 is exposed to the fluid flow 50.
• the fluid flows in the direction 53 and the short end of the valve bodies 51 is influenced by the fluid flow and the valves are opened by rotating about the shafts 52.
• valve system which acts in a resonance regime.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Reciprocating Pumps (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19903277

Family Applications (1)

Country Status (5)

Citations (5)

• 1999
  • 1999-04-30 NO NO992126A patent/NO992126L/no not_active Application Discontinuation
• 2000
  • 2000-04-27 JP JP2000615496A patent/JP2002543339A/ja not_active Withdrawn
  • 2000-04-27 AU AU43209/00A patent/AU4320900A/en not_active Abandoned
  • 2000-04-27 WO PCT/NO2000/000139 patent/WO2000066890A1/en not_active Application Discontinuation
  • 2000-04-27 EP EP00923023A patent/EP1181451A1/en not_active Withdrawn

Patent Citations (5)

Also Published As

Similar Documents

Legal Events