WO2010039034A1 - Connecting element for connecting a first component to a second component arranged rotatably about a rotation axis relative to the first rigid component - Google Patents

Connecting element for connecting a first component to a second component arranged rotatably about a rotation axis relative to the first rigid component Download PDF

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Publication number
WO2010039034A1
WO2010039034A1 PCT/NL2009/050590 NL2009050590W WO2010039034A1 WO 2010039034 A1 WO2010039034 A1 WO 2010039034A1 NL 2009050590 W NL2009050590 W NL 2009050590W WO 2010039034 A1 WO2010039034 A1 WO 2010039034A1
Authority
WO
WIPO (PCT)
Prior art keywords
rigid
fluid
tube
connecting element
component
Prior art date
Application number
PCT/NL2009/050590
Other languages
French (fr)
Inventor
Robert Edwin De Jong
Original Assignee
Soldeq Solar Systems B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soldeq Solar Systems B.V. filed Critical Soldeq Solar Systems B.V.
Publication of WO2010039034A1 publication Critical patent/WO2010039034A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/04—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/22—Multi-channel hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/50—Rollable or foldable solar heat collector modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/79—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting reflective surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
    • F24S30/455—Horizontal primary axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/48—Arrangements for moving or orienting solar heat collector modules for rotary movement with three or more rotation axes or with multiple degrees of freedom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/60—Details of absorbing elements characterised by the structure or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/13—Transmissions
    • F24S2030/133—Transmissions in the form of flexible elements, e.g. belts, chains, ropes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/16—Hinged elements; Pin connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention relates to a connecting element for connecting, for passage of a fluid, a first rigid component adapted for guiding the fluid to a second rigid component adapted for guiding a fluid arranged rotatably about a rotation axis relative to the first rigid component arranged for guiding the fluid.
  • connections are generally known in the form of connections of flexible conduits.
  • flexible conduits have become available in recent years which have excellent properties in respect of pressure resistance and temperature resistance, there is a need for rigid conduits for the purpose of some applications, for instance because these have better thermal insulation.
  • the object of the invention is to provide such a connection which makes use of rigid conduits, but which nevertheless enables relative rotation between the components while maintaining sealing.
  • the at least one tube is manufactured from substantially rigid material, the tube is connected by a rigid connection to at least one of the components adapted for guiding a fluid, and the tube extends at a distance from the rotation axis.
  • This configuration makes it possible to deform the at least one tube outside the rotation axis of the relative rotation between the two components.
  • the rotation of the tube also always involves a translation, whereby the deformation of the tube differs from that of a pure torsion of the tube. Owing to this difference the rigid tube can accommodate the rotation with less deformation, so reducing the danger of leakage or breakage.
  • the tube is more attractive for the tube to be connected by a rigid connection to both components adapted for guiding a fluid.
  • the deformation caused by the rotation is distributed over still more directions when the axis of the at least one rigid connecting tube intersects a flat plane extending through the rotation axis.
  • the deformation of the tube then comprises not only a rotation and a translation, but also another further movement .
  • the deformation is further reduced when the at least one rigid connecting tube extends in a helix.
  • the rotation is hereby at least partially accommodated by the diameter of the helix being decreased.
  • the helix preferably has a rotation angle greater than 360°, whereby the deformation is distributed over a greater length of the tube.
  • An alternative embodiment provides the measure that the at least one rigid connecting tube extends in a straight line.
  • the attractive distribution of the stresses and deformation over a greater length is hereby not obtained as in the foregoing embodiment, although a considerable quantity of material is however saved.
  • the stress in the tube caused by rotation of the components is concentrated in the vicinity of the attachment of the tube to the relevant component.
  • the device comprises at least two rigid connecting tubes. It hereby becomes possible to apply tubes of a smaller diameter, so that the stresses are better distributed. This advantage is increased when the number of tubes is greater than two.
  • figure 1 is a perspective, partially broken-away view of a first embodiment of the invention
  • figure 2 is a perspective view of a second embodiment of the invention
  • figure 3 shows a mobile solar collector with a connecting element according to the invention in a third embodiment.
  • Figure 1 shows a connection between a first component 1 and a second component 2. Both components are adapted to be able to rotate relative to each other about the axis extending through both components and indicated with a dot-dash line 3.
  • Both components form a part of the same device, wherein the construction of the device requires that parts 1, 2 are rotatable relative to each other in collinear relation.
  • the construction of the device likewise requires that a liquid or a gas is transported between the two components 1, 2. It is assumed that the transport takes place in a single direction, although it is also possible for the transport to take place in two opposite directions, i.e. the flow direction in a number of tubes, for instance five of the tubes, is opposite to that in the remaining five tubes.
  • tubes 4a-4j are arranged, in the present case ten, each extending between component 1 and component 2.
  • a respective cavity 5, 6 is arranged in components 1, 2.
  • Tubes 4a-4j are each connected by a rigid connection to both components 1,
  • tubes 4a-4j As a consequence of the rigidity of tubes 4a-4j a rotation between the two components 1, 2 is accommodated by tubes 4a-4j deforming along their whole length, wherein it is noted that this distribution is improved when the rigidity of the at least one connecting tube decreases from the rigid connection to one of the parts toward the middle of the tubes. It is noted that all tubes extend at a distance from rotation axis 3, and that they extend to some extent obliquely, i.e. they each intersect a plane extending through rotation axis
  • parts 1, 2 could be embodied such that they mutually connect two respective groups of tubes in the manner of multiple manifolds such that the one group of tubes transports medium in the one direction, while the other group of tubes transports medium in the other direction.
  • This is essentially a multiple form of the embodiment according to figure 2.
  • FIG. 2 shows an embodiment wherein two helical tubes 7a, 7b are placed between components 11 and 12. Owing to the small pitch of the helix a large number of windings are present, so that tubes 7a, 7b are both long. The deformation caused by the relative rotation of the components is hereby distributed over a great length, so that the deformation per length of tube remains small. This distribution is also improved in this embodiment when the rigidity of the at least one connecting tube decreases from the rigid connection to one of the parts toward the middle of tubes 7a, 7b. Because the flow of the fluid takes place in two opposite directions in this embodiment, each of the components is provided with two channels 13, 14 and 15, 16 respectively for guiding the fluid in both flow directions.
  • FIG. 3 shows a mobile solar collector 20 of the type described in applicants non-prepublished Netherlands patent application NL-2002960. Use is made in solar collector 20 of a connecting element according to the invention.
  • An in and outward foldable mirror consisting of two parts 21, 22 is supported by a sub-frame 23 which is pivotable as according to an arrow 24 relative to a main frame 24.
  • the solar radiation from the sun is concentrated by mirror 21, 22 on a tube 25 through which heat transport medium can flow such that the medium present therein is heated by the solar radiation.
  • the medium is transported through tube construction 25 by means which are not shown. Because the angular position of mirror 21, 22 relative to that of main frame 24 is chosen subject to the position of the sun, the medium flowing through tube construction 25 must flow over a certain pivoting range with main frame 24.
  • the tubes 26, 27 are protected during operation by a protective sleeve.
  • the pump means required for transporting the medium and the connection of solar collector 20 to a user station and, to the extent necessary, power supply means whereby the solar collector can automatically follow the position of the sun as it varies during the day in order to achieve the highest possible efficiency of the solar collector.

Abstract

The invention relates to a connecting element for connecting, for passage of a fluid, a first rigid component adapted for guiding the fluid to a second rigid component adapted for guiding a fluid arranged rotatably about a rotation axis relative to the first rigid component arranged for guiding the fluid, comprising at least one connecting tube extending substantially parallel to the rotation axis. The at least one tube is manufactured from substantially rigid material, is connected by a rigid connection to at least one of the components adapted for guiding a fluid, and extends at a distance from the rotation axis.

Description

CONNECTING ELEMENT FOR CONNECTING A FIRST COMPONENT TO A SECOND COMPONENT ARRANGED ROTATABLY ABOUT A ROTATION AXIS RELATIVE TO THE FIRST RIGID COMPONENT
The invention relates to a connecting element for connecting, for passage of a fluid, a first rigid component adapted for guiding the fluid to a second rigid component adapted for guiding a fluid arranged rotatably about a rotation axis relative to the first rigid component arranged for guiding the fluid.
Such connections are generally known in the form of connections of flexible conduits. Although flexible conduits have become available in recent years which have excellent properties in respect of pressure resistance and temperature resistance, there is a need for rigid conduits for the purpose of some applications, for instance because these have better thermal insulation.
The object of the invention is to provide such a connection which makes use of rigid conduits, but which nevertheless enables relative rotation between the components while maintaining sealing.
This object is achieved with such a connecting element, wherein the at least one tube is manufactured from substantially rigid material, the tube is connected by a rigid connection to at least one of the components adapted for guiding a fluid, and the tube extends at a distance from the rotation axis. This configuration makes it possible to deform the at least one tube outside the rotation axis of the relative rotation between the two components. The rotation of the tube also always involves a translation, whereby the deformation of the tube differs from that of a pure torsion of the tube. Owing to this difference the rigid tube can accommodate the rotation with less deformation, so reducing the danger of leakage or breakage.
Although it is possible in principle to arrange the rigid connection only on a single side, it is more attractive for the tube to be connected by a rigid connection to both components adapted for guiding a fluid. The deformation caused by the rotation is distributed over still more directions when the axis of the at least one rigid connecting tube intersects a flat plane extending through the rotation axis. The deformation of the tube then comprises not only a rotation and a translation, but also another further movement .
The deformation is further reduced when the at least one rigid connecting tube extends in a helix. The rotation is hereby at least partially accommodated by the diameter of the helix being decreased.
The helix preferably has a rotation angle greater than 360°, whereby the deformation is distributed over a greater length of the tube.
An alternative embodiment provides the measure that the at least one rigid connecting tube extends in a straight line. The attractive distribution of the stresses and deformation over a greater length is hereby not obtained as in the foregoing embodiment, although a considerable quantity of material is however saved. The stress in the tube caused by rotation of the components is concentrated in the vicinity of the attachment of the tube to the relevant component. In order to make this attachment as durable as possible, it is recommended that the rigidity of the at least one connecting tube decreases from the rigid connection to one of the parts toward the middle of the at least one rigid connecting tube.
Yet another preferred embodiment provides the measure that the device comprises at least two rigid connecting tubes. It hereby becomes possible to apply tubes of a smaller diameter, so that the stresses are better distributed. This advantage is increased when the number of tubes is greater than two.
The use of more tubes provides the option of them all being adapted for transport of fluid in the same flow direction.
It is however also possible for at least one of the rigid connecting tubes to be adapted for transport of the fluid in opposite direction to that of other rigid connecting tubes . The invention will be elucidated hereinbelow on the basis of the accompanying drawings, in which: figure 1 is a perspective, partially broken-away view of a first embodiment of the invention; figure 2 is a perspective view of a second embodiment of the invention; and figure 3 shows a mobile solar collector with a connecting element according to the invention in a third embodiment.
Figure 1 shows a connection between a first component 1 and a second component 2. Both components are adapted to be able to rotate relative to each other about the axis extending through both components and indicated with a dot-dash line 3.
Both components form a part of the same device, wherein the construction of the device requires that parts 1, 2 are rotatable relative to each other in collinear relation. The construction of the device likewise requires that a liquid or a gas is transported between the two components 1, 2. It is assumed that the transport takes place in a single direction, although it is also possible for the transport to take place in two opposite directions, i.e. the flow direction in a number of tubes, for instance five of the tubes, is opposite to that in the remaining five tubes.
For the purpose of transporting the fluid a number of tubes 4a-4j are arranged, in the present case ten, each extending between component 1 and component 2. A respective cavity 5, 6 is arranged in components 1, 2. Tubes 4a-4j are each connected by a rigid connection to both components 1,
2, wherein the interior of the tubes connects to cavities 5 and 6. As a consequence of the rigidity of tubes 4a-4j a rotation between the two components 1, 2 is accommodated by tubes 4a-4j deforming along their whole length, wherein it is noted that this distribution is improved when the rigidity of the at least one connecting tube decreases from the rigid connection to one of the parts toward the middle of the tubes. It is noted that all tubes extend at a distance from rotation axis 3, and that they extend to some extent obliquely, i.e. they each intersect a plane extending through rotation axis
3. Although this embodiment can in principle be implemented with a single connecting tube, it will be apparent that at least two tubes will usually be used in order to obtain a symmetrical construction. During rotation it is not possible in some circumstances to prevent the occurrence of some associated second-order length effect. This effect will be negligibly small in practice, particularly in the case where the effective rotation angle per unit of length of the tubes is small- It will be apparent in this respect that the known laws of physics which describe the torsion are applicable to the situation according to the invention. It will thus be apparent that in the embodiment according to figure 1 the torsion angle per unit of length of the tubes will be greater for a given overall torsion angle than in the embodiment according to figure 2, in which the overall length of the tubes is substantially greater than in the embodiment according to figure 1. Attention is further drawn to the fact that parts 1, 2 could be embodied such that they mutually connect two respective groups of tubes in the manner of multiple manifolds such that the one group of tubes transports medium in the one direction, while the other group of tubes transports medium in the other direction. This is essentially a multiple form of the embodiment according to figure 2.
Figure 2 shows an embodiment wherein two helical tubes 7a, 7b are placed between components 11 and 12. Owing to the small pitch of the helix a large number of windings are present, so that tubes 7a, 7b are both long. The deformation caused by the relative rotation of the components is hereby distributed over a great length, so that the deformation per length of tube remains small. This distribution is also improved in this embodiment when the rigidity of the at least one connecting tube decreases from the rigid connection to one of the parts toward the middle of tubes 7a, 7b. Because the flow of the fluid takes place in two opposite directions in this embodiment, each of the components is provided with two channels 13, 14 and 15, 16 respectively for guiding the fluid in both flow directions.
It will also be apparent that the measures of the two embodiments can be combined.
Figure 3 shows a mobile solar collector 20 of the type described in applicants non-prepublished Netherlands patent application NL-2002960. Use is made in solar collector 20 of a connecting element according to the invention. An in and outward foldable mirror consisting of two parts 21, 22 is supported by a sub-frame 23 which is pivotable as according to an arrow 24 relative to a main frame 24. The solar radiation from the sun is concentrated by mirror 21, 22 on a tube 25 through which heat transport medium can flow such that the medium present therein is heated by the solar radiation. The medium is transported through tube construction 25 by means which are not shown. Because the angular position of mirror 21, 22 relative to that of main frame 24 is chosen subject to the position of the sun, the medium flowing through tube construction 25 must flow over a certain pivoting range with main frame 24.
Because of the very high temperatures which can be reached with this type of solar collector, the use of sealing rotation couplings is not practical. Use is therefore made in this embodiment of a connecting element according to the invention. This is embodied largely in the same manner as shown in figure 2, with the proviso that tubes 26, 27 have a slighter helical form than in figure 2, so have in this respect a form akin to that of the tubes according to figure 1.
In this embodiment there are only two tubes 26, 27. In the structure according to figure 3 the connecting parts 1, 2 or 11, 12 (not shown) are coupled non-movably to respectively the main frame 24 and the sub-frame 23 disposed pivotally relative thereto.
Not shown is that in a practical embodiment the tubes 26, 27 are protected during operation by a protective sleeve. Not shown either are the pump means required for transporting the medium and the connection of solar collector 20 to a user station and, to the extent necessary, power supply means whereby the solar collector can automatically follow the position of the sun as it varies during the day in order to achieve the highest possible efficiency of the solar collector.

Claims

CIAIMS
1. Connecting element for connecting, for passage of a fluid, a first rigid component adapted for guiding the fluid to a second rigid component adapted for guiding a fluid arranged rotatably about a rotation axis relative to the first rigid component arranged for guiding the fluid, comprising at least one connecting tube extending substantially parallel to the rotation axis, characterized in that the at least one tube is manufactured from substantially rigid material, the tube is connected by a rigid connection to at least one of the components adapted for guiding a fluid, and the tube extends at a distance from the rotation axis.
2. Connecting element as claimed in claim 1, characterized in that the tube is connected by a rigid connection to both components adapted for guiding a fluid.
3. Connecting element as claimed in claim 1 or 2, characterized in that the axis of the at least one rigid connecting tube intersects a flat plane extending through the rotation axis .
4. Connecting element as claimed in claim 3, characterized in that the at least one rigid connecting tube extends in a helix.
5. Connecting element as claimed in claim 4, characterized in that the helix has a rotation angle greater than 360°.
6. Connecting element as claimed in claim 3, characterized in that the at least one rigid connecting tube extends in a straight line.
7. Connecting element as claimed in any of the foregoing claims, characterized in that the rigidity of the at least one connecting tube decreases from the rigid connection to one of the parts toward the middle of the at least one rigid connecting tube.
8. Connecting element as claimed in any of the foregoing claims, characterized in that the device comprises at least two rigid connecting tubes.
9. Connecting element as claimed in claim 8, characterized in that the at least two rigid connecting tubes are adapted for transport of fluid in the same flow direction.
10. Connecting element as claimed in claim 8, characterized in that at least one of the rigid connecting tubes is adapted for transport of the fluid in opposite direction to that of other rigid connecting tubes.
PCT/NL2009/050590 2008-10-01 2009-09-30 Connecting element for connecting a first component to a second component arranged rotatably about a rotation axis relative to the first rigid component WO2010039034A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL2002050 2008-10-01
NL2002050 2008-10-01
NL2002961 2009-06-03
NL2002961A NL2002961C2 (en) 2008-10-01 2009-06-03 CONNECTING ELEMENT FOR CONNECTING A FIRST PART TO A SECOND PART FITTED ABOUT A ROTARY SHAFT WITH REGARD TO THE FIRST HARD PART.

Publications (1)

Publication Number Publication Date
WO2010039034A1 true WO2010039034A1 (en) 2010-04-08

Family

ID=41447258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2009/050590 WO2010039034A1 (en) 2008-10-01 2009-09-30 Connecting element for connecting a first component to a second component arranged rotatably about a rotation axis relative to the first rigid component

Country Status (2)

Country Link
NL (1) NL2002961C2 (en)
WO (1) WO2010039034A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015036598A (en) * 2013-08-13 2015-02-23 株式会社東芝 Solar heat collection system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936791A (en) * 1955-09-21 1960-05-17 Flexonics Corp Flexible hydraulic hose
FR2836537A1 (en) * 2002-02-26 2003-08-29 Hutchinson Method for transporting fluid between two pneumatic system elements comprise replacing mono-tubular flexible hose with hose made from flexible continuous bundle of tubes shaped by rigid sleeve
WO2007048434A1 (en) * 2005-10-29 2007-05-03 Piflex P/S Fluid line and method for its production

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936791A (en) * 1955-09-21 1960-05-17 Flexonics Corp Flexible hydraulic hose
FR2836537A1 (en) * 2002-02-26 2003-08-29 Hutchinson Method for transporting fluid between two pneumatic system elements comprise replacing mono-tubular flexible hose with hose made from flexible continuous bundle of tubes shaped by rigid sleeve
WO2007048434A1 (en) * 2005-10-29 2007-05-03 Piflex P/S Fluid line and method for its production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015036598A (en) * 2013-08-13 2015-02-23 株式会社東芝 Solar heat collection system

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Publication number Publication date
NL2002961C2 (en) 2010-04-09

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