Emission control device for fuel injection and carbureted engines
AssigneeThompson Technologies, Inc.
InventorRichard W. Thompson
Life of this patent
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Abstract
Disclosed herein is an emission control device for use with a carburetor or fuel injection engine. The device is comprised of a body member of predetermined thickness and may define therein at least one through opening. The through opening communicates with the fuel opening in the carburetor or the fuel injection body. The device also has an air passageway largely defined in its surface. The air passageway communicates with the through opening and lies generally under the fuel passageways of the carburetor or injection body so that air passed through the passageway passes into the through opening and under the fuel passageways.
Claims27
An emission control device for use with a carburetor having a base defining therein at least one opening and a fuel port opening into said at least one opening, said device comprising:
- a body member of predetermined thickness, said body member having a surface and at least one through opening extending therethrough, said through opening communicating with said at least one opening in said base;
- and
- an air passageway defined in said surface to form an open indentation therein, said air passageway opening into said through opening and forming a lip that extends beyond said body member into said through opening, said air passageway lying generally adjacent to said base of said carburetor and said fuel port so that air passing through said air passageway passes into said through opening essentially directly under said fuel port, said air first entering said through opening by means of said lip such that fuel exiting from said fuel port is essentially immediately mixed with the air passing through said air passageway and said lip, said lip being directed toward the central longitudinal axis of said through opening, said lip being comprised of an end, a base joining said end to said body member, and two opposing sides connected to said base, said sides generally decreasing in height as they extend from the walls which define said through opening to said end.
A carburetor or fuel injection body having a base defining an opening of a first width;
- a fuel port in fluid communication with said opening;
- and an emission control device located at said base, said device comprising at least one through opening of a second width, said second width being greater than said first width, said through opening communicating with said opening in said carburetor or fuel injection body, said emission control device also having an air passageway of generally constant dimension, said air passageway communicating with and extending into said second opening to define an extending lip in said second opening, said lip being of smaller dimension than said air passageway, the dimension of said air passageway gradually changing to the dimension of said lip.
An emission control device comprising a body;
- a singular open port extending from one side of said body, and a singular tubular port extending from the opposing side of said body, said tubular port being in direct fluid communication with said open port said device including a band extending therefrom with enable said body to be fit within the opening of a carburetor or fuel injection body in which the fuel port empties.
A carburetor or fuel injection body having a base defining an opening of a first width;
- a fuel port in fluid communication with said opening;
- said body or said carburetor having at said base an emission control device comprised of a body and a metal plate, said body comprising:
- at least one through opening of a second width, said second width being greater than said first width, said through opening communicating with said opening in said body;
- an air passageway, said air passageway communicating with said second opening and opening into said second opening under said fuel port;
- said metal plate defining at least one opening therein, said opening being smaller than that of either of said first or second opening, said plate being placed between said carburetor or fuel injection body and said device to form a circumferential overhang around the periphery of said second opening to cause fuel emitted from said fuel port to drip thereoff into said second opening to be mixed with the air therein.
An emission control device comprised of a tubular portion for connection to an air supply source at one end and for extending under the fuel ports in a carburetor or fuel injector body opening at the other end and under or into the fuel injector or carburetor opening in which said fuel ports empty, said other end being an outlet cut at an angle, said outlet having a base portion and a top portion, the base portion of said outlet extending further under or into said body opening than the top portion of said outlet.
An emission control device comprising a body;
- a singular open port extending from one side of said body;
- and a singular tubular port extending from the opposing side of said body, said ports being in direct fluid communication with each other, said open port extending such that when said device is used with a carburetor or fuel injection body said port extends below or within the opening defined in said body where said fuel port is located in said carburetor or fuel injection body, said port being situated essentially directly under said fuel port, wherein there are a plurality of said devices, said plurality sharing a common air passageway, each of said tubular ports carrying a portion of air transferred from said common air passageway into each of said tubular ports and thereby into each of said open ports, said passageway thereby being indirectly in fluid communication with said open ports.
Dependencies are inferred from the claim text.