Patent Publication Number: US-2011072813-A1

Title: Vehicle power generation system using exhaust gas

Description:
TECHNICAL FIELD 
     The present disclosure relates to a vehicle power generation system using exhaust gas, and in particular to a vehicle power generation system using exhaust gas which generates electric power used for electrolysis as the system is used in a vehicle which uses a mixed gas of hydrogen and oxygen. 
     BACKGROUND ART 
     A hydrogen-oxygen mixed gas generation apparatus is constituted to generate hydrogen and oxygen which are obtained as water is electrolysis-treated. The above apparatus generates a mixed gas of hydrogen and oxygen which is a non-pollution energy source by supplying water mixed with a small amount of electrolyte into an electrolysis tank equipped with a positive (+) electrode and a negative (−) electrode and applying a DC voltage thereto. 
     At this time, the hydrogen and oxygen are produced at a molecular ratio of 2:1, and hydrogen is produced in a form of bubble from the surface of the electrode (−), and oxygen is produced in a form of bubble from the surface of the electrode (+). The produced hydrogen and oxygen are mixed and become a mixed gas which is combustible. In casing of burning, any pollutants are not produced, so the hydrogen and oxygen gases are considered as an environment friendly energy source. 
     The applicant of the present disclosure has applied such hydrogen and oxygen mixed gas generation apparatus to a vehicle for thereby generating hydrogen and oxygen mixed gas and has researched to use the same as a fuel for driving an engine. 
     In order to generate a mixed gas of hydrogen and oxygen, it is needed to supply a couple of tens to hundreds of amperes to the electrodes (−) and (+). However, it seems difficult for the battery or generator installed in the vehicle to receive such currents. 
     SUMMARY 
     A vehicle power generation system using exhaust gas, includes a casing which is installed at a vehicle chassis and is formed of an inlet hole for inputting an exhaust gas and an outlet hole for discharging an exhaust gas, a turbine which is rotatably installed in the interior of the casing and rotates by a pressure of the exhaust gas inputted into the inlet hole, a power generator which has a rotary shaft axially engaged to a shaft part of the turbine passing through a front side of the casing and a fixing bracket for fixing the power generator to the casing. The inlet hole is obliquely formed at a side portion of a front side of the casing, and the turbine includes a shaft part rotatably engaged to a bearing installed in the front and rear sides of the casing and a wing assembly rotated by a pressure of the exhaust gas inputted into the inlet hole, and the wing assembly includes a plurality of wing disks with a plurality of latch wings being opposite to the inlet hole, and the wing assembly is partitioned by a partition disk of a front side after the wing disks are stacked in the direction of the inlet hole, and a plurality of wing disks are stacked at the side of the inlet hole, and it is partitioned at the partition disk of the rear side, and a plurality of partition disks partition a plurality of wings stacked between the partition disk of the font side and the partition disk of the rear side, and in the stacked wing disks, the latch wings are arranged in a spiral shape, and holes formed in the partition disks are disposed between the latch wings in spiral shapes. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present disclosure, wherein; 
         FIG. 1  is a perspective view of a vehicle power generation system using exhaust gas according to the present disclosure; 
         FIG. 2  is a front view of a wing disk belonging to a turbine of  FIG. 1 ; 
         FIG. 3  is a front view of a partition disk belonging to a turbine of  FIG. 1 ; 
         FIG. 4  is a view for explaining an inlet hole and a wing disk obliquely formed at a side portion of a casing in  FIG. 1 ; 
         FIG. 5  is a side view of a turbine of  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
     Accordingly, it is an object of the present disclosure to provide a vehicle power generation system using exhaust gas which is able to generate an electric energy using exhaust gas of a vehicle for the use of generating a mixed gas of hydrogen and oxygen. 
     To achieve these and other objects, there is provided a vehicle power generation system using exhaust gas which comprises a casing  10  which is installed at a vehicle chassis and is formed of an inlet hole  11  for inputting an exhaust gas and an outlet hole  12  for discharging an exhaust gas; a turbine  20  which is rotatably installed in the interior of the casing  10  and rotates by means of a pressure of the exhaust gas inputted into the inlet hole  11 ; a power generator  30  which has a rotatary shaft  31  axially engaged to a shaft part  21  of the turbine  20  passing through a front side of the casing  10 ; and a fixing bracket  40  for fixing the power generator  30  to the casing  10 , wherein said inlet hole  11  is obliquely formed at a side portion of a front side of the casing  10 , and said turbine  20  includes a shaft part  21  rotatably engaged to a bearing installed in the front and rear sides of the casing  10  and a wing assembly  22  rotated by a pressure of the exhaust gas inputted into the inlet hole  11 , and said wing assembly  22  includes a plurality of wing disks  23  with a plurality of latch wings  23   a  being opposite to the inlet hole  11 , and said wind assembly  22  is partitioned by a partition disk  24 ′ of a front side after the wing disks  23  are stacked in the direction of the inlet hole  11 , and a plurality of wing disks  23  are stacked at the side of the inlet hole  12 , and it is partitioned at the partition disk  24 ″ of the rear side, and a plurality of partition disks partition a plurality of wings stacked between the partition disk  24 ′ of the font side and the partition disk  24 ″ of the rear side, and in the stacked wing disks  23 , said latch wings  23   a  are arranged in a spiral shape, and holes  24   a  and  24   b  formed in the partition disks  24 ,  24 ′ and  24 ″ are disposed between the latch wings  23   a  in spiral shapes. 
     There are further provided a plurality of radiation fins  15  formed on an outer surface of the casing  10  for externally radiating the heat generated by means of a high speed rotation of the turbine  20 . 
     EFFECTS 
     According to the vehicle electric power generation system using an exhaust system of the present disclosure, it is possible to generate electric power using exhaust gas without using an additional energy input since a turbine is rotated by means of an exhaust gas discharged from an engine, and the electric power is generated as the turbine drives the electric power generator. 
     In addition, since the turbine is formed of a plurality of wing disks equipped with latch wings being opposite to a plurality of inlet holes, so the turbine can be efficiently rotated by means of the exhaust gas, so that the electric power generator can be effectively driven for thereby generating a lot of electric power energy. 
     
       
         
           
               
             
               
                   
               
               
                 &lt;Description of reference numerals of key elements in the drawings&gt; 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
            
               
                   
                 10: casing 
                 11: inlet hole 
               
               
                   
                 12: outlet hole 
                 13: bracket 
               
               
                   
                 15: radiation fin 
                 20: turbine 
               
               
                   
                 21: shaft part 
                 22: wing assembly 
               
               
                   
                 23: wing disk 
                 23a: latch wing 
               
               
                   
                 24: partition disk 
                 24a, 24b: hole 
               
               
                   
                 30: power generator 
                 40: fixing bracket 
               
               
                   
                   
               
            
           
         
       
     
     The vehicle power generation system using exhaust gas according to the embodiments of the present disclosure will be described with reference to the accompanying drawings. 
       FIG. 1  is a perspective view of a vehicle power generation system using exhaust gas according to the present disclosure;  FIG. 2  is a front view of a wing disk belonging to a turbine of  FIG. 1 ;  FIG. 3  is a front view of a partition disk belonging to a turbine of  FIG. 1 ;  FIG. 4  is a view for explaining an inlet hole and a wing disk obliquely formed at a side portion of a casing in  FIG. 1 ; and  FIG. 5  is a side view of a turbine of  FIG. 1 . 
     As shown therein, the vehicle power generation system using exhausting gas according to the present disclosure is installed on a chassis of a vehicle, which includes a casing  10  which is installed at a vehicle chassis and is formed of an inlet hole  11  for inputting an exhaust gas and an outlet hole  12  for discharging an exhaust gas; a turbine  20  which is rotatably installed in the interior of the casing  10  and rotates by means of a pressure of the exhaust gas inputted into the inlet hole  11 ; a power generator  30  which has a rotary shaft  31  axially engaged to a shaft part  21  of the turbine  20  passing through a front side of the casing  10 ; and a fixing bracket  40  for fixing the power generator  30  to the casing  10 . The casing  10  is formed in a cylindrical shape which is fixed to a fixing part of a chassis of a vehicle. As shown in  FIGS. 1 and 4 , an inlet hole  11  is obliquely formed in a side portion of a front side of the casing  10  for inputting exhaust gas, and an outlet hole  12  is formed in a rear side of the casing  10  for discharging exhaust gas which has been used for rotating the turbine  20 . Since the inlet hole  11  is obliquely formed, the exhaust gas inputted into the inlet hole  11  can effectively rotate the turbine  20 . At this time, the inlet hole  11  is connected with a muffler which finally discharges exhaust gas, and the outlet hole  12  is connected with an additional pipe. Here, the inlet hole  11  might be connected with an exhaust manifold which exhausts exhaust from engine, and the outlet hole  12  may be connected with muffler. A bracket  13  is formed in the casing  10  and is engaged by means of a bolt and a nut to be fixed to a chassis of a vehicle. A plurality of radiation fins  15  are formed in an outer surface of the casing  10  for radiating heat which is generated by means of a high speed rotation of a turbine  20 . Here, the radiation fins  15  can be integrally formed when forming the casing  10  in a cylindrical shape or can be separately formed and engaged to the casing  10 . The turbine  20  includes a shaft part  21  rotatably engaged to a bearing (not shown) installed in the front and rear sides of the casing  10 , and a wing assembly  22  which is engaged to the shaft part  21  and rotates by means of a pressure of the exhaust gas inputted into the inlet hole  11 . The wing assembly  22  may be formed in various forms, and in the embodiment of the present invention, the wing assembly  22  includes a plurality of wing disks  23  with a plurality of latch wings  23   a  being opposite to the direction of the inlet hole  11 , and a partition disk  24  which partitions the wing disk  23  and other wing disk  23 ′. As shown in  FIG. 4 , the front side of the latch  23   a  formed in the wing disk  23  is formed in a latch shape toward the inlet hole  11  for an easier rotation by means of an exhaust gas inputted into the inlet hole  11 , and the rear side of the same is obliquely formed. In addition, a plurality of holes are formed in the partition disk  24  for discharging exhaust gas, and two holes  24   a  and  24   b  are preferably formed for easier description of the present invention. It is preferred that the holes  24   a  and  24   b  are obliquely formed when the thickness of the partition disk  24  is thick, and the inclination direction is toward the rotation direction of the turbine. The wing assembly is constituted in a structure that a plurality of wing disks  23  and a plurality of partition disks  24  are stacked in the shaft part  21 . In the present embodiment, the wing assembly  22  is partitioned by means of the partition disk  24 ′ of the front side in which four wing disks  23  are stacked in the direction of the inlet hole  11 , and two wing disks  23  are stacked in the side of the outlet hole  12  and are partitioned by the partition disk  24 ″ of the rear side, and a plurality of partition disks partition a plurality of wing disks stacked between the partition disk  24 ′ of the front side and the partition disk  24 ″ of the rear side partition. At this time, in the wing disks  23  stacked, the latch wings  23   a  are arranged in spiral shape, and the holes  24   a  and  24   b  formed in the partition disks  24 ,  24 ′ and  24 ″ partitioning the wing disks are arranged in spiral shapes between the latch wings  23   a . With the structure of the turbine  20 , the exhaust gas inputted into the inlet hole  11  pushes and rotates the latch wings  23   a  disposed as being opposite and in spiral shapes, and the exhaust gas is discharged through the outlet hole  12  through the holes  24   a  and  24   b  and the latch wing  23   a  formed in the partition disk  24  arranged in spiral shape. Namely, the exhaust gas pushes the latch wings  23   a  disposed in a spiral shape and passes through the other latch wings and the spiral holes  24   a  and  24   b  of the partition disk and pass through the outlet hole  12  for thereby effectively rotating the turbine  20 . The rotating turbine  20  rotates the rotor of the power generator  20  for thereby producing a lot of electric power. The fixing bracket  40  integrally fixes the power generator  30  to the casing  10 . With the above structure, the exhaust gas discharged from the engine is inputted into the interior of the casing  10  through the inlet holes  11  for thereby rotating the turbine  20 , and the turbine  20  generates a lot of power as the turbine  20  drives the power generator  30 . The generated electric power is supplied to the electrodes of the apparatus for generating a mixed gas of hydrogen and oxygen for the use of water electrolysis. 
     The embodiments of the present disclosure have been described with reference to the embodiments disclosed in the drawings, which are for illustrative purposes to aid in an understanding of the subject matter of the present disclosure, but are not intended, and may not be construed, to limit in any way the claims which follow hereafter. While specific terminology is employed for the sake of clarity in describing exemplary embodiments, the present disclosure is not intended to be limited to the specific terminology so selected, and it is to be understood that each specific element includes all technical equivalents which operate in a similar manner.