Carburetor air intake housing and air flow enhancing contoured radial structure

An air intake housing for delivering outside air to a carburetor after the outside air passes through an air filter, the carburetor having an outer wall, a flat top surface and a contoured carburetor air intake opening extending down from its top surface to form a throat with a sidewall substantially normal to its top surface, the carburetor air intake opening having an hourglass shape with four outermost points, and said air intake housing comprising:

• an air intake housing having an air intake end and a carburetor end, said air intake end being open to receive the outside air, said carburetor end being adapted to receive the air filter and having an opening downstream of the air filter, said downstream opening being formed by a plate securing flange;
• an air flow enhancing contoured radial structure having a main body with spaced upper and lower surfaces and a contoured inner opening formed by a contoured inner perimeter of said main body, said opening having an undulating shape, said main body extending over the top surface of the carburetor and having inner contoured areas extending inward of the four outermost points of the hourglass shaped carburetor opening, said inner contoured areas having alternating wider and narrower contoured areas, said undulating shape of said contoured inner opening being sized and shaped to flushly align with said contoured hourglass shape of the carburetor air intake opening, and said upper surface of said inner perimeter being rounded to form a fluted opening, said main body including a securing rib extending from said main body, said rib being sized and shaped to snuggly receive the outer wall of the carburetor to join said main body to the top of the carburetor, and said main body including a mounting flange extending radially from said main body, said mounting flange matingly receiving said air intake housing;
• and,
• wherein said undulating shaped opening is adapted for aligned registry with the hourglass shaped carburetor air intake opening with said contoured inner perimeter of said lower surface of said main body being adapted for flush alignment with the sidewall of the contoured carburetor air intake opening, said fluted opening and said flush alignment improving air flow into the throat of the carburetor.

An air flow enhancing contoured radial structure for a carburetor, the carburetor having an outer wall, a flat top surface and a contoured carburetor air intake opening extending down from its top surface to form a throat with a sidewall substantially normal to its top surface, the contoured carburetor air intake opening having an hourglass shape with four outermost points, and said air flow enhancing contoured radial structure comprising:

• a main body with spaced upper and lower surfaces and a contoured inner opening with a contoured inner perimeter, said main body extending over the top surface of the carburetor and having inner contoured areas extending inward of the four outermost points of the hourglass shaped carburetor air intake opening, said inner contoured areas having alternating wider and narrower contoured areas, said contoured areas being sized and shaped to flushly align with said contoured carburetor air intake opening, and said upper surface of said inner perimeter being rounded to form a fluted opening;
• a securing rib extending from said main body, said rib being sized and shaped to snuggly receive the outer wall of the carburetor to join said main body to the top of the carburetor;
• and,
• wherein said contoured areas of said contoured inner opening are adapted for aligned registry with the contoured carburetor air intake opening with said contoured inner perimeter of said lower surface of said main body being adapted for flush alignment with the sidewall of the contoured carburetor air intake opening, said fluted opening and said flush alignment improving air flow into the throat of the carburetor.