GB2088479A

GB2088479A - Two-way fans and impeller

Info

Publication number: GB2088479A
Application number: GB8020575A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-06-24
Filing date: 1980-06-24
Publication date: 1982-06-09

Abstract

A two-way fan or impeller is described applied to a variety of applications each having a respective flow-guidance structure. The structures range from a simple aperture to a substantially total enclosure. Some examples of application include ventilation of all kinds, air-conditioning, mixers and blenders, contained paint-spraying in two forms, sand-blasting, carpet-cleaning, surface sanding, washing machines and 'dry-cleaning', dish washing, power conveying for use in vehicle power-transmission and ship power-transmission enabling a steerable propeller, oil- or deep-earth drilling, pneumatic and pipeline technology and circulation techniques. <IMAGE>

Description

SPECIFICATION Further items employing the double fan of Application 7938295 of November 1979, andlorcircula- tion principle implicit in Application 7938295 of Nov.

6th 1979 and specified in Application 7939334 of November 14th. 1979 Section 1. Use of two-way fan to produce flows, orto derive motion in a two-way fan by means of flows.

1. A freely rotating two-way fan enables a single aperture to permitthe simultaneous ingress and egress of flows, and thus the readier movement and change of air or liquid, and therefore its easier modification. (fig. 1a, seen in section.) 2. A freely rotating fan responding to pressures at different levels. (fig. 1 b, seen in section.) 3. A simple, powered, two-way fan, providing means of maintaining separation of resulting flows by either extending the guard or frame, or extension of inner and outer blade separation mounting, or provision of a suppiementary sleeve of fabric or other material, or any combination of same, (as seen in section in figs. 2, 2a, 2b, 2c, 2d.) 4. A powered, two-way fan providing fluid change in descrete flows.Temperature or pressure controlled switching can vary the direction of flows. (fig. 3a and 3b.) 5. Use of two-way fan as mixers or blenders, to produce agitation or sub-division in substances, (as seen in section in 4a. In figs. 4b, 4c, and 4f the blade separation mounting and outer bands are modified to aid particular purposes. Figs. 4d and 4e show the use of a cowl extending from the outer band, to aid containment of the substance treated, while fig. 4g is intended to indicate in section the use of blades which change pitch without the use of an intermediate mounting.) 6.Use of convection currents to produce motion in a two-way fan, to produce flame-effects in electric fires, or to vary colours in lights by the interposition of verigated coloured fan blades, with particular use with glass-filament lights, orto move coloured screens relative to each other outside the source of light.

Section it Control of flows produced by a twoway fan by use of a cowl, by which the flows can be better used, or the flow better modified.

7. Simple fan with cowl to provide usable circulation, permitting modification of the flow by filtration, injection, heating or cooling etc., or any combination. (figs. 6a and 6b show how modification can be afforded approximately, with lengthways subsection separating the variously affected flows.

8. Use of contained circulation as a vehicle for injected material, such as paint for appiication to a surface. Excess material is contained and carried round for further application. (In fig. 9 injection is shown to be through the motor spindle, but it can be effected elsewhere during circulation.

9. Air, or modified air or liquid can be forced into or onto a surface, and the excess and used flow be extracted and passed for filtration or further modification. This can be made a continuous flow by piping from the filter to the intake. (fig. 7) e.g. 'hoover- ing' etc.

10. An operation can be carried out under such a cowl, e.g. sanding, sawing or grinding, and the resulting debris can be captured. (fig. 8) 11. Sand- or grit-blasting can be carried out within a hood, (fig. 10) the front aperture of which can flex on springs attached to the hose extension. An extraction fan (single or two-way) then draws bacle the used sand or grit to a filter below.

12. Use of a double pipe, one within the other, with or without a double fan, to supply and extract simultaneously, could well handle say oxygen and nitrogen separately and possibly obviate the use of the 'iron lung'. (fig. 5a.) 13. Clearage of blockages of whatever kind could be aided (fig. 5b) by the rapid change of rotation of the motive fan.

Section 111. Single circulation enclosed to provide a usable flow.

14. Contained circulation permits flow usable as simple washing machine, or structure for similar operations. (fig. 11. Horizontal model fig. 12.) Large scale drawing of fig. 11 enclosed.

15. Application of same principle in the conveying of fluid or gases through material in such uses as 'dry cleaning'. (fig. 13.) 16. Flows permitted between fans powered via connected linkages afford use as dish-washing machines or paint-spraying of suspendable objects.

(figs. 14.) Section /V. Contained flow returned by similar reciprocal mechanisms.

17. Double circulation as in Application 7939334 of Nov. 14th. 1979, affording power transmission, or transmission of torque or applied torque, (fig. 15a, with fan variation in fig. 15b.) Where previously it has been necessary to convey power via two pipes of a given dimension to a hydraulic engine, only one is now required, of the same dimension, without the need of the hydraulic motor to convert power to torque, or rotation. Drive is achieved across the diameter of the bore of both pipes, affording immediately usable rotation at the far end. This can favourably effect power-transmission in vehicles, ships, drilling, lift-machinery etc. etc., in both simplicity and the saving of energy involved.

1. A family of structures related in commonly exercising one or more of a variety of one-way or two-way fans to promote two-way or opposed flows which modify or are modified; by progressively developing'the containing structure from a simple aperture, through a variety of cowls until the action is totally enclosed, the resultant flows can be used to achieve progressively more work.

2. A structure as claimed in Claim 1, in which the blade or blades of the fan component have a variance of pitch at some point along the radius from the axis so that the flow directed by one pitch is in opposition to the flow from the other.

3. Astructure as claimed in the preceding Claim, substantially as described herein with reference to fig. 4g in the accompanying drawing.

4. A structure as claimed in Claim 1, in which the

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Further items employing the double fan of Application 7938295 of November 1979, andlorcircula- tion principle implicit in Application 7938295 of Nov. 6th 1979 and specified in Application 7939334 of November 14th. 1979 Section 1. Use of two-way fan to produce flows, orto derive motion in a two-way fan by means of flows. 1. A freely rotating two-way fan enables a single aperture to permitthe simultaneous ingress and egress of flows, and thus the readier movement and change of air or liquid, and therefore its easier modification. (fig. 1a, seen in section.) 2. A freely rotating fan responding to pressures at different levels. (fig. 1 b, seen in section.) 3. A simple, powered, two-way fan, providing means of maintaining separation of resulting flows by either extending the guard or frame, or extension of inner and outer blade separation mounting, or provision of a suppiementary sleeve of fabric or other material, or any combination of same, (as seen in section in figs. 2, 2a, 2b, 2c, 2d.) 4. A powered, two-way fan providing fluid change in descrete flows.Temperature or pressure controlled switching can vary the direction of flows. (fig. 3a and 3b.) 5. Use of two-way fan as mixers or blenders, to produce agitation or sub-division in substances, (as seen in section in 4a. In figs. 4b, 4c, and 4f the blade separation mounting and outer bands are modified to aid particular purposes. Figs. 4d and 4e show the use of a cowl extending from the outer band, to aid containment of the substance treated, while fig. 4g is intended to indicate in section the use of blades which change pitch without the use of an intermediate mounting.) 6.Use of convection currents to produce motion in a two-way fan, to produce flame-effects in electric fires, or to vary colours in lights by the interposition of verigated coloured fan blades, with particular use with glass-filament lights, orto move coloured screens relative to each other outside the source of light. Section it Control of flows produced by a twoway fan by use of a cowl, by which the flows can be better used, or the flow better modified. 7. Simple fan with cowl to provide usable circulation, permitting modification of the flow by filtration, injection, heating or cooling etc., or any combination. (figs. 6a and 6b show how modification can be afforded approximately, with lengthways subsection separating the variously affected flows. 8. Use of contained circulation as a vehicle for injected material, such as paint for appiication to a surface. Excess material is contained and carried round for further application. (In fig. 9 injection is shown to be through the motor spindle, but it can be effected elsewhere during circulation. 9. Air, or modified air or liquid can be forced into or onto a surface, and the excess and used flow be extracted and passed for filtration or further modification. This can be made a continuous flow by piping from the filter to the intake. (fig. 7) e.g. 'hoover- ing' etc. 10. An operation can be carried out under such a cowl, e.g. sanding, sawing or grinding, and the resulting debris can be captured. (fig. 8) 11. Sand- or grit-blasting can be carried out within a hood, (fig. 10) the front aperture of which can flex on springs attached to the hose extension. An extraction fan (single or two-way) then draws bacle the used sand or grit to a filter below. 12. Use of a double pipe, one within the other, with or without a double fan, to supply and extract simultaneously, could well handle say oxygen and nitrogen separately and possibly obviate the use of the 'iron lung'. (fig. 5a.) 13. Clearage of blockages of whatever kind could be aided (fig. 5b) by the rapid change of rotation of the motive fan. Section 111. Single circulation enclosed to provide a usable flow. 14. Contained circulation permits flow usable as simple washing machine, or structure for similar operations. (fig. 11. Horizontal model fig. 12.) Large scale drawing of fig. 11 enclosed. 15. Application of same principle in the conveying of fluid or gases through material in such uses as 'dry cleaning'. (fig. 13.) 16. Flows permitted between fans powered via connected linkages afford use as dish-washing machines or paint-spraying of suspendable objects. (figs. 14.) Section /V. Contained flow returned by similar reciprocal mechanisms. 17. Double circulation as in Application 7939334 of Nov. 14th. 1979, affording power transmission, or transmission of torque or applied torque, (fig. 15a, with fan variation in fig. 15b.) Where previously it has been necessary to convey power via two pipes of a given dimension to a hydraulic engine, only one is now required, of the same dimension, without the need of the hydraulic motor to convert power to torque, or rotation. Drive is achieved across the diameter of the bore of both pipes, affording immediately usable rotation at the far end. This can favourably effect power-transmission in vehicles, ships, drilling, lift-machinery etc. etc., in both simplicity and the saving of energy involved. CLAIMS

4. A structure as claimed in Claim 1, in which the variations of the pitch of the fan component blade or blades are separated by a cylindrical mounting which discretely separates the said flows.

5. A structure as claimed in the preceding Claims, in which the cylindrical mounting of the fan component extends beyond the width of the blade or blades relative to the length of the fan axis.

6. A structure as claimed in the preceding Claim, in which the said fan component mounting extends in the form of an open cone.

7. A stucture as claimed in the preceding Claims in which the angle of the said mounting varies along its length.

8. A structure as claimed in the preceding Claims, in which the said fan component mounting is concave in section relative to the length of the fan axis.

9. A structure as claimed in the preceding Claim, in which the said mounting is convex in section rela tive to the length of the fan axis.

10. A structure as claimed in the preceding Claim, in which the said mounting is formed by the open ends of the two cones.

11. A structure as claimed in Claims 4 to 7, in which the said mounting is turned back upon itself to form a double or multiple thickness.

12. A structure as claimed in Claims 4 to 11, in which the blade or blades are mounted at any point along the extended separation mounting.

13. A structure as claimed in Claims 2 to 12, in which the outer blades are omitted.

14. A structure as claimed in Claims 4 to 12, in which the inner blades are omitted.

15. Astructure as claimed in the preceding Claims, in which at least one blade or set blades is inclined into the flows.

16. A structure as claimed in the preceding Claims, in which at least one blade or set of blades in inclined away from the flows.

17. A structure as claimed in any of the preceding Claims, in which a mounting in any of the shapes previously stated also encircles the outer circumfer pence of the outer blade or blades of the fan compo nent.

18. Astructure as claimed in Claim 17, in which this peripheral mounting is extended to form a cowl or container.

19. A structure as claimed in Claim 1, in which the fan component is substantially as described herein with reference to figs. 2a to 2d, 4a to 49, and 15b of the accompanying drawing.

20. - A structure as claimed in Claim 1, in which the fan component as claimed in Claims 2 to 19 rotates passively in an aperture.

21. A structure as claimed in the preceding Claim, in which the said fan turns under power.

22. A structure as claimed in Claim 1, in which the fan component as claimed in Claims 2 to 19 rotates passively in 9 cowling which discretely sepa rates the flows and ducts them to points remote from each other.

23. A structure as claimed in the preceding Claim, in which the fan componentturns under power.

24. Astructure asclaimed in Claim 1, in which any fan component claimed in Claims 2 to 19 is powered in a free-standing frame to rotate at any angle, including variations from the vertical.

25. A structure as claimed in the preceding Claim, in which a guide, in the shape of any of the previously declared and claimed shapes of fan component mounting, extends outward from the frame on either or both sides of the fan face.

26. A structure as claimed in Claim 1, in which any fan component as claimed in Claims 2 to 19 turns within two ducts or pipes, one within the bore of the other, so as to maintain discrete flows in each direction. This and all succeeding structures are powered.

27. A structure as claimed in Claim 1, in which a fan component as claimed in Claims 2 to 19 turns within a cowl or means which will return the flow from one blade or set of blades to join the flow of the other blade or set of blades, with an inner duct or container separate from the fan pitch variation mounting.

28. A structure as claimed in the preceding Claim, without an inner duct or container separate from the said fan mounting.

29. A structure as claimed in the preceding two Claims, in which there is provision of means for injection of other material into the circulating flows, either through the motor spindle or elsewhere.

30. A structure as claimed in Claims 27 and 28, in which there is provision of means for filtration, or heating or cooling or conditioning, or any combination of these, or otherwise modifying the flows in circulation.

31. A structure as claimed in Claims 27 and 28, with provision of means by which supplementary flows can be drawn into the circulation and be sepa ratelychannelled off.

32. Astructure as claimed in Claims 27 to 31, in which the flows from the open end of the cowl modify substances outside the cowl and are then drawn back into the cowl.

33. A structure as claimed in the preceding Claim, in which substances are modified within the cowl.

34. A structure as claimed in Claim 1, with a closable access, in which the flows from any fan component as claimed in Claims 2 to 19 can be totally contained so that continuous circulation results so as to modify articles within that flow. This structure can be horizontal or vertical in action, and of any shape.

35. A structure as claimed in Claim 34, in which more than one fan component as claimed in Claims 2 to 19 is used to sustain circulation, with a separate inner duct.

36. A structure as in the preceding Claim in which the inner duct is omitted.

37. A structure as claimed in Claim 1, in which at least two fan components as claimed in Claims 2 to 19 are used, at least one at each end of or within two ducts, one within the bore of the other, which outer duct is cowled at both ends, so that flow from one fan drives the second fan and returns in continuous circulation through the first.

38. A structure as claimed in Claim 1, in which a single one-way fan turns within an inner duct within an outer duct, which is cowled at both ends, so that continuous circulation results, to modify articles within the flow.

39. A structure as claimed in Claims 20 to 38, in which any fan component as claimed in Claims 2 to 19 turns freely.

40. A structure as claimed in Claims 20 to 38, in which any fan component as claimed in Claims 2 to 19 turns under power.

41. A structure as claimed in Claims 20 to 38, in which impellors of any kind impart force or motion to a medium or derive the same from it.

42. A structure substantially as described herein with reference to figs. 1 a and b, 2, 3a and b, and 5a to 15a of the accompanying drawing.

42. A structure substantially as described herein with reference to figs. 1 a and b, 2, 3a and b, and 6a to 15a of the accompanying drawing.

New claims or amendments to claims filed on 2/9/81 Superseded claim 42