Back to results
US 4,212,275 AGranted
Carburetor
AssigneeNissan Motor Co., Ltd.
InventorMitsumasa Inoue
Life of this patent
Estimating the term…
Abstract
A carburetor in which a fuel evaporator using a "porous ceramic body" is disclosed. The "porous ceramic body" has a three-dimensional porous structure with open boxes. The three-dimensional porous structure comprises an electrically conductive ceramic with a positive temperature coefficient. The carburetor is provided with an electrical arrangement so as to permit current to flow through the "porous ceramic body" to cause it to produce heat.
Claims5
In an internal combustion engine having an induction system:
- an air-fuel mixture forming means and an, induction passage leading to said internal combustion engine;
- and means
- disposed within said air-fuel mixture forming means and said induction passage for adsorbing a portion of the fuel fed to said internal combustion engine in an unvaporized state and reintroducing said portion into said induction passage in a vaporized state, said means taking the form of
- a porous ceramic body made of an electrically conductive material having a positive temperature coefficient and an apertured metal member disposed in said induction passage in contact with said porous ceramic body, which apertured metal member serves as one of two electrical contacts of said porous ceramic body and which apertured metal member further serves to receive said vaporized fuel through said apertures to mix the same with the air-fuel mixture passing through the induction passage.
1 more element
In a carburetor:
- an induction passage having a venturi portion;
- a main well in fluid communication with a source of fuel;
- a conduit formed with a plurality of holes therein, which define a main nozzle and leads from said main well to said induction passage so as to project into said venturi portion for delivering fuel into said induction passage;
- a porous ceramic body disposed about a part of said main nozzle so as to be in fluid contact with the fuel flowing in said main nozzle via, plurality of holes, said porous ceramic body being electrically conductive and having a positive temperature coefficient and defining bypass flow means for adsorbing a portion of the fuel flowing in said conduit, heating the same and re-introducing said portion of fuel into the main nozzle in a vaporized state through said plurality of holes.
1 more element
Dependencies are inferred from the claim text.