Method of making a carburetor

Abstract

A method of making a carburetor by first extruding a length of material and then cutting a carburetor body of predetermined length from the extrusion. The extrusion includes a passageway. A venturi member is molded of plastic material and inserted in the passageway. A fuel bowl is molded from plastic material and is secured to the body by means of a resilient clip.

What is claimed is: 
     
       1. A method of making a carburetor comprising: forming an extrusion .Iadd.having a generally axial throughbore therein.Iaddend.;   cutting a carburetor body of a predetermined length from said extrusion;   .Iadd.forming a nozzle bore in said body;   providing a venturi member, said venturi member including a nozzle aperture;   inserting said venturi member axially into the throughbore of said body;   aligning said nozzle aperture with said nozzle bore; .Iaddend.   providing a fuel bowl.Iadd., said fuel bowl having a well portion positioned generally centrally of said fuel bowl;   inserting a resilient spring into said well portion;   inserting a nozzle into said well portion through said nozzle bore and said nozzle aperture; .Iaddend.   securing said fuel bowl to said body; and   forming fluid passages in said body.   
     
     
       2. The method according to claim 1 wherein the passages in said body are machined therein. 
     
     
       3. The method according to claim 1 wherein said securing step comprises securing said fuel bowl to said body with a resilient clip. 
     
     
       4. The method according to claim 1 including the step of molding said fuel bowl from a plastic material. .[.5. The method according to claim 1 
     
     
        including the step of inserting a venturi member into said body..]. 6. The method according to claim .[.5.]. .Iadd.1 .Iaddend.including the step of 
     
     
        molding said venturi member from plastic material. 7. The method according to claim 6 including the step of modeling channels in the outside surface of said venturi member whereby said channels form passageways with said 
     
     
        body. 8. The method according to claim 1 wherein said body is extruded 
     
     
        from aluminum. 9. The method of claim 1 wherein the step of extrusion 
     
     
        comprises extruding said body of metal. 10. A method of making a carburetor comprising: forming an extrusion .Iadd.having a generally axial throughbore therein.Iaddend.;   cutting a carburetor body of predetermined length from said extrusion.Iadd., said body including a generally flat support surface extending generally parallel to said throughbore.Iaddend.;   forming fluid passages in said body;   .Iadd.inserting a venturi member axially into the throughbore of said body; .Iaddend.   molding a fuel bowl from a plastic material;   providing a resilient clip .Iadd.to secure said fuel bowl to said body, said clip including a pair of bights.Iaddend.; and   securing said fuel bowl to said body .[.with said resilient clip.]. .Iadd.by grippingly engaging said bights with said support surface, said bights being connected by a center portion of said clip that extends under said bowl by thereby clamp said bowl to said carburetor body.Iaddend.. .[.11. The method according to claim 10 including the step of inserting a   
     
     
        venturi member into said body..]. 12. The method according to claim 10 including the .[.steps.]. .Iadd.step .Iaddend.of molding .[.a.]. .Iadd.said .Iaddend.venturi member from plastic material.[., and inserting 
     
     
        said venturi member into said body.].. 13. The method according to claim 10 including the .[.steps.]. .Iadd.step .Iaddend.of molding .[.a.]. .Iadd.said .Iaddend.venturi member from plastic material, said venturi member including molded channels in its outside surface.[., and inserting said venturi member into said body.]. whereby said channels form 
     
     
        passageways with said body. 14. The method according to claim 10 wherein 
     
     
        said body is .[.extrided.]. .Iadd.extruded .Iaddend.from aluminum. 15. The method according to claim 10 wherein the passages in said body are 
     
     
        machined therein. 16. A method for making a carburetor comprising: forming an extrusion .Iadd.having a generally axial throughbore therein.Iaddend.;   cutting a carburetor body of predetermined length from said extrusion.Iadd., said body including a generally flat base portion, said base portion extending generally parallel to said throughbore and having an upper surface;   forming a nozzle bore in said body;   forming fluid passages in said body by machining said passages therein; .Iaddend.   providing a venturi member.Iadd., said venturi member having a nozzle aperture formed therein.Iaddend.;   inserting said venturi member .Iadd.axially .Iaddend.into .[.a cavity.]. .Iadd.the throughbore .Iaddend.in said body;   .Iadd.aligning said nozzle bore with said nozzle aperture; .Iaddend.   molding a fuel bowl from a plastic material.Iadd., said molded fuel bowl including a generally upstanding wall portion positioned generally centrally of said fuel bowl whereby a well is formed by said wall portion;   inserting a resilient spring means into said well;   inserting a nozzle into said well through said nozzle bore and said nozzle aperture; .Iaddend.   providing a resilient clip means .Iadd.to secure said fuel bowl to said body, said clip means including a pair of bights.Iaddend.; and   securing said fuel bowl to said body .[.with.]. .Iadd.by grippingly engaging .Iaddend.said .[.resilient clip means.]. .Iadd.bights with said upper surface of said base portion, said bights being connected by a center portion of said clip means that extends under said bowl to thereby   
     
     
        clamp said bowl to said body.Iaddend.. .[.17.  The method according to 
     
     
        claim 16 wherein the passages in said body are machined therein..]. 18. The method according to claim 16 including the step of molding said 
     
     
        venturi member from plastic material. 19. The method according to claim 18 including the step of molding channels in the outside surface of said 
     
     
        venturi member whereby said channels form passageways with said body. 20. The method according to claim 16 wherein said body is composed of aluminum.