Patent Publication Number: US-2023145434-A1

Title: Fuel economizer

Description:
BACKGROUND OF THE INVENTION 
     (a) Technical Field of the Invention 
     The present invention is generally related to the reduction of energy consumption, and more particular to an engine fuel economizer. 
     (b) Description of the Prior Art 
     As shown in  FIG.  1   , an installation environment for an ordinary fuel economizer includes a fuel tank  20  and a carburetor  30  interconnected by a fuel pipe  50 . The fuel  40  stored in the fuel tank  20  flows into an internal combustion engine  10  through the fuel pipe  50  and carburetor  30 . The fuel pipe  50  is only for delivering the fuel  40  and has no other function. 
     To install a fuel economizer for the internal combustion engine  10 , it is usually configured outside the internal combustion engine  10  along with some other pipe (both fuel economizer and the other pipe are not shown). It is clear that the installation of fuel economizer requires additional piping while the fuel pipe  50  is under-utilized. 
     SUMMARY OF THE INVENTION 
     To obviate the above shortcoming, the present invention teaches a novel fuel economizer integrally integrated with the fuel pipe. 
     The fuel economizer is series-connected between a fuel tank and a fuel vaporization device of an internal combustion engine, and includes a first piping element and an oil cup. A first end of the first piping element is connected to the fuel vaporization device, and a second end of the first piping element is connected to the fuel tank through the oil cup for filtering the fuel tank&#39;s fuel. A spirally threaded shaft is tightly housed inside the first piping element and the spirally threaded shaft&#39;s outer circumference is configured with spiral threads to speed, rotate, and disturb the fuel as the fuel flows through to disrupt the surface tension and density of the fuel. 
     The oil cup includes a second piping element, a third piping element, and a filter. Both ends of the third piping element respectively connects the second piping element and the fuel tank. The second piping element has a filter chamber inside for housing the filter for filtering the fuel as it flows through. A first threaded section is configured along an inner wall of the filter chamber around a front end of the filter chamber, and a second threaded section is configured around a circumference of a back end of the third piping element. The second threaded section is detachably coupled to the first threaded section, thereby limiting the filter. 
     The spiral threads includes at least three threads for speeding, rotating, disrupting, and reducing surface tension and density of the fuel. The spirally threaded shaft has cone-shaped first and second tips respectively at both ends of the spirally threaded shaft. 
     The advantages of the present invention lie in that the spiral threads around the spirally threaded shaft speed, rotate, and disrupt the fuel as the fuel flows through to reduce the fuel&#39;s surface tension and density. There is no need to have separate piping for the fuel economizer. The spirally threaded shaft&#39;s cone-shaped tips enhance the smoothness when the fuel flows through. 
     The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. 
     Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a schematic diagram showing a common installation environment for fuel economizer. 
         FIG.  2    is a sectional diagram showing a fuel economizer according to an embodiment of the present invention within an installation environment. 
         FIG.  3    is a perspective breakdown diagram showing the fuel economizer of  FIG.  2   . 
         FIG.  4    is a sectional diagram showing the fuel economizer of  FIG.  2   . 
         FIG.  5    is a cross-sectional diagram showing a spirally threaded shaft of the fuel economizer of  FIG.  2   . 
         FIG.  6    depicts a working scenario of the spirally threaded shaft of  FIG.  5   . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. 
     As shown in  FIGS.  2  to  6   , a fuel economizer  1  according to an embodiment of the present invention is installed between a fuel tank  3  and a fuel vaporization device  4 . Fuel A stored in the fuel tank  3  flows through the fuel economizer  1  into the fuel vaporization device  4 , where fuel A is vaporized and fed into an internal combustion engine  2 . The fuel economizer  1  includes a first piping element  11 , and an oil cup  5  connected to an end of first piping element  11  for the filtration of the fuel A. The first piping element  11  is connected to the fuel tank  3  through the oil cup  5 . The other end of the first piping element  11  is connected to the fuel vaporization device  4 . Inside the first piping element  11 , at least a spirally threaded shaft  12  is tightly housed. The spirally threaded shaft  12 &#39;s outer circumference is configured with spiral threads  121  to rotate and disturb the fuel A as the fuel A flows through so as to disrupt the surface tension and density of the fuel A. As shown in  FIG.  2   , the internal combustion engine  2  may be a turbojet engine for a vehicle, and the internal combustion engine  2  may be applied to automobiles, motorcycles, aerial vehicles, or marine vehicles. The first piping element  11  may be a fuel pipe. 
     Preferably, the first piping element  11  is a flexible tube made with a stainless steel mesh so that the first piping element  11  has an enhanced strength and prolonged operation life, and is prevented from rupture under the pressure of the fuel A. The oil cup  5  includes a second piping element  51  and a third piping element  52  series-connected between the first piping element  11  and the fuel tank  3 . The second piping element  51  has a filter chamber  511  inside for housing a filter  512  for filtering the fuel A as it flows through. A first threaded section  513  is configured along an inner wall of the filter chamber  511  around a front end of the filter chamber  511 . A second threaded section  521  is configured around the circumference of a back end of the third piping element  52 . The second threaded section  521  is coupled to the first threaded section  513 , thereby limiting the filter  512 . The detachable coupling between the second piping element  51  and the third piping element  52  provides convenient replacement to the filter  512 . The filtration of the fuel A by the filter  512  would allow the fuel A to flow through the spirally threaded shaft  12  with a greater speed under reduced resistance, in addition to enhancing the safety of the internal combustion engine  2 , as shown in  FIGS.  3  and  6   . 
     Along the circumference of the spirally threaded shaft  12 , the spiral threads  121  includes at least three threads as shown in  FIGS.  4  and  5   . The three threads speed up, rotate, and disturb the fuel A as the fuel A flows through to reduce its surface tension and density. 
     In addition, both ends of spirally threaded shaft  12  respectively have cone-shaped first tip  122  and second tip  123 , as shown in  FIGS.  3 ,  4 , and  6   . 
     As describe above, the fuel economizer provides the following advantages:
         1. The first piping element  11  itself may function as a fuel pipe and, unlike the conventional fuel economizer, there is no need for additional piping to the internal combustion engine  2 . The cone-shaped first and second tips  122  and  133  of the spirally threaded shaft  12  allow the fuel A to pass through with greater smoothness, speed, and flow.   2. The three spiral threads  121  around the spirally threaded shaft  12  speed, rotate, and disrupt the fuel A to reduce its surface tension and density. In the meantime, the fuel A is divided into three high-speed, interacting vortexes so that the large molecules of the fuel A are crumbled into smaller molecules. The fuel A, with reduced surface tension and density and of smaller molecules, may be quickly and uniformly vaporized in the fuel vaporization device  4 , thereby contributing the fuel A&#39;s complete combustion in the internal combustion engine  2  and the internal combustion engine  2 &#39;s power efficiency. The higher efficiency from the internal combustion engine  2  then leads to lower consumption to the fuel A. The operational life of the internal combustion engine  2  and its auxiliary devices may be as such prolonged as well, as shown in  FIGS.  2  to  6    (the large and small molecules are not shown).       

     While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the claims of the present invention.