Apparatus for creating a swirling flow of fluid

An apparatus for creating a swirling flow of fluid comprises a transmission base (1) with an internal cavity (2) to receive the fluid flow from outside via a side hole (3) which will become a hole side edge (4) to control the flow through of the fluid into the transmission base in a laminar swirling flow in the internal cavity of the transmission base. A part of the hole side edge may have an elevated insert supporting shoulder (10) to support the overlay attachment of another transmission base to stack them higher.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a U.S. National Phase Application under 35 U.S.C. §371 of International Application No. PCT/TH2013/000031 filed Jul. 29, 2013 which claims priority to Thailand Application No. 1201006816 filed Dec. 27, 2012, the entire disclosures of which are hereby incorporated by reference in their entirety.

FIELD OF THE INVENTION

The present invention relates to an apparatus for creating swirling a flow of fluid.

BACKGROUND AND PRIOR ART

Reference is made to U.S. Pat. No. 2,052,869 which discloses a device for creating a deflecting stream of a fluid flow by injection of the fluid with a sufficient high velocity through an orifice into another fluid. The fluid flowing at the sufficient high velocity would induce adjacent fluid in and guide it to flow towards the side through which the flow has been made difficult, which is the flow control devices such as flap and curve. The principle of the present invention is well known as Coanda Effect, and

Reference is made to application U.S. 2008/0173363 A1 which discloses a fundamental device for creating a swirling flow of fluid. The device is configured as a base for transmission with an inclined side hole in which the fluid would flow through from outside to inside. Said fluid would flow in an inclined direction in order to disperse inside the transmission base. The flow is in a swirling motion but does not form a laminar swirling flow.

SUMMARY OF THE INVENTION

An apparatus for creating the swirling flow of fluid comprises a transmission base with an internal cavity to receive the fluid flow from outside via side penetrable hole where a hole side edge wherein the beginning section of convex curve of the said hole side cage has to be the surface with a smallest angle of deviation to the emerging axis of the said penetrable hole, and the said hole side edge has to be the nearest surface to emerging axis of the side penetrable hole in comparison with another surface surrounding emerging axis of the side penetrable hole to deflect the flow of incoming fluid to the internal cavity of the transmission base to flow attaching to the convex curve resulting in Coanda Effect phenomena, said Coanda Effect will create a laminar flow of fluid along the same plane as an internal surface of the transmission base and speed up flow velocity resulting a laminar swirling flow in the internal cavity of the transmission base. And a part of the hole side rim has an elevated insert supporting shoulder to support the overlay attachment of another transmission base to stack them higher.

The objective of the present invention is to provide an apparatus for creating the swirling flow of fluid, in which the fluid flow through from outside to inside of the apparatus via side penetrable hole to flow attaching to the convex curve and induce the fluid from the internal cavity of the transmission base to flow attaching to the convex curve resulting in Coanda Effect phenomena, said Coanda Effect will create a laminar flow of fluid along the same plane as an internal surface of the transmission base and speed up flow velocity resulting a laminar swirling flow in the internal cavity of the transmission base.

DETAILED DESCRIPTION

As shown inFIG. 1, the apparatus for creating a swirling flow of fluid of the present invention comprises a transmission base1comprising a thick receiving base with an internal cavity2to receive the transmission of an inlet fluid to create the swirling flow before transferring said fluid with a swirling motion to an outlet channel, or said fluid with the swirling motion will flow out via the outlet of a configuration. Said configuration is equipped with the apparatus for creating the swirling flow of fluid in which a side of the transmission base1will have at least one side penetrable hole3, which will become at least one hole side edge4to control the flow through of the fluid from outside of the transmission base1to inside of the transmission base1in a laminar flow along the same plane as the internal surface of the transmission base1(as clearly shown inFIG. 2) of which the hole side edge4comprises an elevated shoulder from the transmission base1at the side of the side penetrable hole3to control the flow through of the fluid transferred from outside of the apparatus for creating the swirling flow of fluid.

A part of the surface of the hole side edge4is a convex curve5for a distance to support the passing fluid that flows in the laminar flow along the same plane of an external surface of the convex curve5.

Another part of the surface of the hole side edge4at the opposite side of the convex curve5can be a concave curve6for a distance to enable the fluid transfer via the side through a hole3for a better laminar flow along the same plane of the external surface of the convex curve5.

A part of the convex curve5at the inlet of the side penetrable hole3can be a concave curve7that supports the convex curve5for a distance to assist the outside fluid for a better flow into the side penetrable hole3at the side of convex curve5.

A part of the concave curve6at the inlet of the side penetrable hole3can be a concave curve8that supports the concave curve for a distance to assist the outside fluid for a better flow into the side penetrable hole3at the side of concave curve6, in which said hole side edge4, wherein the beginning section of convex curve5of said hole side edge4has to be the surface with a smallest angle of deviation to the emerging axis of the side penetrable hole3, and the said hole side edge4has to be the nearest surface to an emerging axis of the side through the hole3in comparison with another surface surrounding the emerging axis of the side penetrable hole3to deflect the flow through of the fluid which flow into the internal cavity2of the transmission base1to flow attaching to the convex curve5and induce the fluid from the internal cavity2of the transmission base1to flow attaching to the convex curve5resulting in the Coanda Effect phenomena. The result of said Coanda Effect will create a laminar flow along the same plane as the internal surface of the transmission base1and speed up the flow velocity resulting a laminar swirling flow in the internal cavity2of the transmission base1.

A part of the hole side edge4in which at least one rim can have an elevated insert supporting shoulder9to support the overlay attachment of another transmission base to stack them higher (as shown inFIG. 3).

A part of the transmission base1can have an elevated insert shoulder10(as shown inFIG. 4) to a degree for stacking the attachment to an insert supporting shoulder of another transmission base to stack them higher (as shown inFIG. 3).

As shown inFIG. 2, the fluid flow of the apparatus for creating the swirling flow of fluid of the present invention comprises an outside fluid11which will be transferred via the side penetrable hole3into the internal cavity2of the transmission base1along the same plane of the surface of the convex curve5to become a surface plane fluid12. At the same time, an outside fluid11′ that is transferred via another side penetrable hole3′ to flow into the internal cavity2of the transmission base1along the same plane of surface of the convex curve5′ becomes a surface plane fluid12′ that assists the transmission in order to enable the surface plane fluid12to flow along the plane of the internal surface of the internal cavity2in a laminar flow at all times.

FIG. 3shows a stacking attachment of the apparatus to create the swirling flow of fluid of the present invention which comprises the transmission base1that supports the stacking attachment of at least one transmission base1′ to increase the height or increase work efficiency of the apparatus for creating the swirling flow of fluid.

FIG. 4shows an apparatus for creating a swirling flow of fluid in another aspect of the present invention in which a side of a transmission base1will have at least one side penetrable hole3for which will become at least one hole side edge4and a part of a hole side edge4in which at least one rim can have an elevated insert supporting shoulder9and a part of the transmission base1can have an elevated insert shoulder10raised to a certain degree to assist the stacking attachment to each other of the apparatus for creating the swirling flow of fluid.

BEST MODE OF THE INVENTION

The same as the disclosure in the detailed description of the invention.