Air conditioning apparatus equipped with a compressor and a vortex

Abstract

An air-conditioner comprises, in an accommodating structure: an axial compressor powered by a built-in motor unit which circulates air, an axial flow-straightening stator to create a static pressure in excess of atmospheric pressure by transferring the air stream obtained in a static centrifugal compressor that creates a rotational flow with the air stream being routed through an axial flow-straightener/diffuser. The flow-straightener/diffuser is internally hollow to circulate ambient air and, externally, straightens the turbulent flow into an axial flow and relieves the pressure. A transfer valve is adapted to the flow-straightener/diffuser to selectively regulate the flow of hot air with the addition of ambient air. A vortex accelerates the air stream using a turbulence effect before it enters an expansion chamber that produces cold and directs the air stream into a final air control valve under the selected temperature conditions.

1 . Air-conditioner comprising, arranged and laid out in an accommodating enclosure, successively, an axial compressor equipped with blades around its periphery and powered by a built-in motor unit which circulates air at a given velocity, an axial flow-straightening stator to create a static pressure in excess of atmospheric pressure by transferring an air stream obtained in a static centrifugal compressor that creates a rotational flow with a static pressure which varies depending on temperature rise along the flow, the air stream being routed through an axial flow-straightener/diffuser, said flow-straightener/diffuser being internally hollow in order to circulate ambient air and fulfilling, externally, a function of straightening turbulent flow into an axial flow and relieving pressure, and a transfer valve adapted to the flow-straightener/diffuser to selectively regulate flow of hot air with addition of ambient air, a vortex to accelerate the stream of air with a turbulence effect before the air stream enters an expansion chamber which produces cold and directs the air stream into a final air control valve under selected temperature conditions. 
   
   
       2 . Air-conditioner as claimed in  claim 1 , wherein the axial compressor comprising a cylindrical body which accommodates, around its periphery, a plurality of blades and a front shape like a propeller cone, and the axial compressor is mounted on taper pin of the motor unit, and said blades have a helical configuration with two adjacent blades having opposite-facing base profiles which diverge. 
   
   
       3 . Air-conditioner as claimed in  claim 1 , wherein the motor unit comprises a shaft associated with a motor, a protective housing, and a flange for mounting the motor, and an end of the shaft has a conical head to receive and support the axial compressor, and the axial compressor is connected to said conical part. 
   
   
       4 . Air-conditioner as claimed in  claim 3 , wherein the axial flow-straightening stator is attached and joined to the enclosure, and the stator is located on a shaft part between the mounting flange and the conical part, and the stator comprises stator blades arranged as an extension of the blades of the compressor and are arranged in an axial longitudinal direction of the axial flow-straightening stator. 
   
   
       5 . Air-conditioner as claimed in  claim 4 , wherein the stator blades have a symmetrical configuration with a gradual inlet and a second tapered part so as to form a teardrop profile, and position of two successive stator blades defines an inlet with convergent profiles and then an outlet with divergent profiles with an intermediate narrowed area with a neck. 
   
   
       6 . Air-conditioner as claimed in  claim 5 , wherein the axial flow-straightening stator includes an upstream and downstream plenum chamber to create a static pressure in excess of atmospheric pressure. 
   
   
       7 . Air-conditioner as claimed in  claim 2 , wherein the static centrifugal compressor comprises a tubular body which fits around the motor unit and accommodates a series of primary blades and a series of secondary blades having different characteristics. 
   
   
       8 . Air-conditioner as claimed in  claim 7 , wherein the static centrifugal compressor comprises a first series of primary blades with five blades arranged as a variable-geometry and variable-pitch helix, the primary blades make one complete revolution around the tubular body, and said primary blades are initially parallel to each other with a preset gap in order to allow positioning of the series of secondary blades which have a much smaller amplitude, and said secondary blades have a twisted configuration which corresponds to a start-up profile of the primary blades, said secondary blades being shorter than said primary blades. 
   
   
       9 . Air-conditioner as claimed in  claim 8 , wherein inlet parts of the primary and secondary blades are all in a longitudinal axial direction of the tubular body, and a rear outlet tips of the primary blades are located in a radial plane, and a surface on each side of each primary blade is concave. 
   
   
       10 . Air-conditioner as claimed in  claim 2 , wherein the axial flow-straightener/diffuser comprises an axial extension of the static centrifugal compressor and includes a hollow cylindrical body surrounding the motor unit and allowing ambient air to circulate, and, on its periphery, the axial flow-straightener/diffuser has a plurality of peripheral blades in a curved configuration. 
   
   
       11 . Air-conditioner as claimed in  claim 10 , wherein the periphereal blades in an inlet area have a separation gap which is less than a gap at a rear tip of said peripheral blades, thereby creating a divergent effect, and the rear tip of the peripheral blades is oriented along the longitudinal axis of the flow-straightener/diffuser, and an inlet area for air originating from the static centrifugal compressor is an extension of an outlet for air originating from the static centrifugal compressor 
   
   
       12 . Air-conditioner as claimed in  claim 10 , wherein the axial straightener/diffuser cooperates with and allows positioning and fitting of the transfer valve, and the transfer valve has a cylindrical body which fits into a body of the flow-straightener/diffuser and has a projecting skirt with a cylindrical configuration with a plurality of slits which allow air to enter and circulate in the cylindrical body, and, on the skirt is a separately mounted and located ring having a matching shape which is capable of being angularly swivelled relative to said skirt, and the ring has shutters which have shapes and dimensions which match slits in order to shut the shutters wholly or partly depending on position of the ring on the skirt, and a means of adjusting and driving the ring on the skirt is provided on the body of the flow-straightener-/diffuser in order to enable appropriate angular orientation of the transfer valve. 
   
   
       13 . Air-conditioner as claimed in  claim 2 , wherein the vortex comprises a cylindrical disk with a central hollow part which accommodates a plurality of blades, and the blades are arranged in a star shape with a truncated cone configuration, and the vortex imparts a stable, constant velocity to the air flow through rotational movement between the blades and it prepares for transfer of the air flow produced in an expansion chamber located downstream.