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Publication numberUS2560220 A
Publication typeGrant
Publication dateJul 10, 1951
Filing dateAug 28, 1946
Priority dateAug 28, 1946
Publication numberUS 2560220 A, US 2560220A, US-A-2560220, US2560220 A, US2560220A
InventorsGraziano Joseph
Original AssigneeGraziano Joseph
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fuel vaporizer
US 2560220 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

July 10, 1951 J. GRAZIANO 2,560,220

FUEL VAPORIZER Filed Aug. 28, 1946 2 Sheets-Sheet l n 'l l-lllm lll,

July 10, 1951 J. GRAZIANO 2,560,220

FUEL VAPORIZER Filed Aug. 28, 1946 2 Sheets-Sheet 2 ,95 INVENTOR.



The present invention relates to an improved fuel vaporizer particularly adapted for use in internal combustion engines using gasoline as a fuel and consists generally in the unique filter inserted between the carburetor and the intake manifold of the engine and other novel combinations and arrangements of parts as will be hereinafter fully described.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention according to the best mode I have thus far devised, but it will be understood that various changes and alterations may be made in the exemplified structure within the scope of the appended claim.

In the drawings:

Figure 1 is a front elevational view of the housing for the filter of my invention.

Fig. 2 is a vertical sectional View at line 2 2 of Fig. 1.

Fig. 3 is a partial longitudinal sectional view at line 3 3 of Fig. 2.

Fig. 4 is a horizontal sectional view at line 4-4 of Fig. 3.

Fig. 5 is a horizontal sectional View at line 5 5 of Fig. 3.

Fig. 6 is a horizontal sectional view at line 6-6 of Fig. 3.

Fig. 7 is a top plan view of the filter.

Fig. 8 is a perspective view thereof.

Fig. 9 is a perspective view of a diffusing device.

Fig. l is a sectional view of a modified ported stud; and

Fig. l1 is a diagrammatic View showing the electrical circuit for heating the lter.

Referring now to the drawings I have illustrated the present embodiment of my invention as mounted upon a conventional engine 2 having an exhaust manifold 4 and exhaust pipe 6. A butterfly valve 8 on shaft I0 is actuated by a heat responsive coil I2 secured in the stud I4 through slot I5, and the nut portion Ia permits the stud to be tightened into the intake manifold I6.

The intake manifold I6 has the usual pipes I1 secured to the engine by bolts I8 and the manifold is fashioned with a fiat wall 20 over the exhaust manifold, the valve 8 controlling the flow of hot exhaust gases in contact with the wall 20.

Passages 22 around the intake manifold I6 permit circulation of hot gases under control of the valve 8 and the passages are formed by the casing 24. A neck 26 for the interior of the casing has a venturi 21 and the upper part of this casing 24 is fashioned into an annular seat 28.

A cap 30 is secured to the casing 24 by bolts 25 and the interior of the cap is fashioned with a dome recess 32 and an upper port 34 to a conventional carburetor 36 having a recessed ange 31.

On the seat 28 I utilize a filter 38 comprising a hollow cone of pressed powdered metal and porous to permit the flow therethrough of the gasoline and air mixture from the carburetor while filtering impurities and foreign objects. The flange 49 is pressed into the cap 30 for tight fit therein and resting upon the seat 28.

The cap and casing form an atomizing chamber in which the filter is located and to create turbulence within this chamber I employ a stem 42 positioned in and above the wall 28 and having a disk 44 preventing the stem from slipping through the wall, and spaced cones 46 and 48 diverge the gas and air fiow while the venturi 21 constricts the flow.

In Fig. 1l I have shown how the cone filter of my invention `may be used in the intake pipes I1, the wires 52 leading to the top 54 of the cone and the connector 56 thereon from the switch 50 and battery 60 and ground 62 thereby permitting the heating of the porous metal filter by electricity.

In Fig. lO I have shown the stud I4 with a passage 64 communicating with the atomizing chamber, and the outlet 66 being controlled by a ball valve 88 inside the end of the pipe or tube 10.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

A fuel vaporizer comprising, a casing forming an atomizing chamber, an intake chamber below and connecting with the atomizing chamber, intake openings for said intake chamber, a porous metal filter having a hollow conical formation, within said atomizing chamber, a diffusing cone within and aligned with the base of said hollow filter and extending into said atomizing chamber, a second diffusing cone below said first diffusing cone and connected thereto and lying within the intake chamber opposite to one of the intake openings for said intake chamber, and a heat transfer means for heating the porous metal lter.


REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,106,452 Ittner Aug. 11, 1914 1,171,145 Sachs Feb. 8, 1916 1,320.528 Borkes Nov. 4, 1919 1,367,789 Torres Feb. 8. 1921 1,416,938 Bowman May 23, 1922 1,484,617 Aske Feb. 26, 1924 1,663,507 Parsons Mar. 20, 1928 1,897,540 Timian Feb. 14, 1933 1,913,684 Purdy June 13, 1933 2,297,817 Truxell et al. Oct. 6, 1942 2,373,867 Wepplo Apr. 17, 1945 2,411,204 Graziano Nov. 19, 1946 OTHER REFERENCES Chrysler Corporation catalogue entitled Oilite Bearings and Parts, dated August 15, 1944.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1106452 *Feb 27, 1911Aug 11, 1914Bradford CoGasolene-vaporizer.
US1171145 *May 23, 1911Feb 8, 1916Joseph SachsCarbureter.
US1320528 *Jan 2, 1919Nov 4, 1919 Fuel atomizing and heating device fob internal-combustion engines
US1367789 *Sep 1, 1920Feb 8, 1921Jacob E MavusHeating device for carbureters
US1416938 *Oct 17, 1918May 23, 1922Bowman Robert LeeVaporizing device for fuel oils
US1484617 *Dec 21, 1920Feb 26, 1924Aske Irving EElectric liquid and gas heater
US1663507 *Aug 14, 1926Mar 20, 1928William P DeppeProcess of preparing a dry gaseous fuel mixture for internal-combustion engines
US1897540 *Mar 2, 1931Feb 14, 1933Continental Motors CorpEngine
US1913684 *Sep 25, 1930Jun 13, 1933Marvel Carbureter CoThermopressure heat control device
US2297817 *Jan 30, 1939Oct 6, 1942Gen Motors CorpFilter element and method of making the same
US2373867 *May 12, 1944Apr 17, 1945Wepplo Isaac WLiquid fuel vaporizer
US2411204 *Nov 8, 1943Nov 19, 1946Joseph GrazianoFuel vaporizer
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2729338 *Oct 4, 1951Jan 3, 1956Exxon Research Engineering CoAircraft fuel filter system
US3583377 *Nov 15, 1968Jun 8, 1971Graziano Joseph RFuel vaporizer apparatus
US3774821 *Nov 24, 1971Nov 27, 1973Westinghouse Electric CorpApparatus for the cold starting and warming run of spark plug-ignited internal combustion engines
US3999525 *Aug 27, 1973Dec 28, 1976Robert Bosch G.M.B.H.Apparatus for the cold starting and warming run of spark plug-ignited internal combustion engines
US4019021 *Jun 6, 1974Apr 19, 1977Schladitz-Whiskers, A.G.Electric resistance fluid heating apparatus
US4036188 *Nov 8, 1974Jul 19, 1977Toyota Jidosha Kogyo Kabushiki KaishaCarburetor equipped with a cooling system
US4088103 *Feb 2, 1976May 9, 1978Piper F.M. LimitedAtomizing device
US4088104 *Jul 21, 1976May 9, 1978Ibbott Jack KennethDevice and method for improving vaporization rate of volatile fuels
US4794226 *Oct 8, 1986Dec 27, 1988Metcal, Inc.Self-regulating porous heater device
US4919298 *Jul 19, 1988Apr 24, 1990Gregory Steven RTrim bucket
US5043105 *Mar 19, 1990Aug 27, 1991Unique Innovations, Inc.Fuel atomizing device for carburetors
US5053170 *Oct 9, 1990Oct 1, 1991Drahos Lloyd JFuel atomizing device for carburetors
US5073625 *Aug 18, 1988Dec 17, 1991Metcal, Inc.Self-regulating porous heating device
US5562869 *Aug 8, 1994Oct 8, 1996Unique Innovations, Inc.Carburetor fuel atomizing device
WO1984004698A1 *May 25, 1984Dec 6, 1984Metcal IncSelf-regulating porous heater device
U.S. Classification123/549, 210/186, 48/189.4, 123/552, 392/497, 210/452, 210/184, 123/590, 392/386, 210/167.1, 219/207
International ClassificationF02M1/00
Cooperative ClassificationF02M2700/4342, F02M1/00, F02M2700/4376, F02M29/04
European ClassificationF02M1/00, F02M29/04