US2715392A - Gasoline vapor attachment for automotive engines - Google Patents

Gasoline vapor attachment for automotive engines Download PDF

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US2715392A
US2715392A US447822A US44782254A US2715392A US 2715392 A US2715392 A US 2715392A US 447822 A US447822 A US 447822A US 44782254 A US44782254 A US 44782254A US 2715392 A US2715392 A US 2715392A
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engine
vapor
fuel
tank
line
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US447822A
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Steve P Grevas
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/43—Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel
    • F02M2700/4302—Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel whereby air and fuel are sucked into the mixture conduit
    • F02M2700/4314—Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel whereby air and fuel are sucked into the mixture conduit with mixing chambers disposed in parallel
    • F02M2700/4316—Arrangements for supplying air, fuel or auxiliary fluids to a combustion space of mixture compressing engines working with liquid fuel whereby air and fuel are sucked into the mixture conduit with mixing chambers disposed in parallel without mixing chambers disposed in parallel

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  • This invention relates to an attachment for automobile engines and has for its purpose the following objects:
  • Figure 1 is a side elevational view of an engine block, partly broken away and showing the novel attachment with its means for connecting the same to the fuel intake of the engine;
  • Figure 2 is a view of a conventional butterfly valve which has been modified in accordance with the present invention.
  • Figure 3 is a top plan view of the auxiliary tank, with the vapor line broken away to show the air inlet;
  • Figure 4 is an enlarged vertical section of an auxiliary fuel tank with pipe connections shown in full lines;
  • Figure 5 is a perspective view of parts of the structure shown in Figure 1.
  • the present invention may be used either with or without the structure shown and claimed in my Patent No. 2,252,972, granted August 14, 1941. closed in this patent pertains to means for heating the gaseous fuel for automobile engines, after it has left the carburetor of the engine, while the present invention is directed to a means for supplying additional gaseous fuel from an independent source to the intake manifold of an engine, and alternatively to add more water vapor to the charge.
  • numeral indicates the engine block of an automobile engine, although it will be understood that the engine may be used in boats or other power driven vehicles such as airplanes. It will be further understood that the engine block shown may form one cylinder bank of a V-type engine, or the block shown may be that of an in-line type of engine.
  • the engine is provided with an intake manifold 12 and a carburetor 14 below which is located a conventional butterfly valve 16.
  • the invention dis- (about) internal diameter.
  • the supplementary fuel vapor line 20 Connected into the intake manifold, as shown in Figures l and 5, so as to be affected by the adjustment of the butterfly valve is the supplementary fuel vapor line 20.
  • the butterfly valve is controlled by a linkage arrangement shown at 22 that connects to a conventional accelerator pedal 24 which is conventionally mounted so as to be operated by the driver of the vehicle.
  • the vapor line is connected to a T-shaped pipe union 26 forming part of the vapor line, and the vapor line 20, the left end and the vertical portion 18 of the T-shaped union have about a 5 internal diameter.
  • One of the horizontal legs may be A and this leads to the radiator 70.
  • the pipe union extends through the top 28 of the supplemental fuel tank 30.
  • This tank preferably is of a size that will contain about two gallons of gasoline or other engine fuel.
  • an air inlet pipe 32 extending through the top 28 is an air inlet pipe 32 whose internal diameter is preferably and whose lower end 34 is located substantially two inches from the bottom 36 of the tank.
  • the butterfly valve When the accelerator pedal is depressed, the butterfly valve is opened, this operation increasing the minus pressure in the intake manifold, and as the pedal is depressed further, a higher minus pressure or vacuum is applied to the vapor line 20.
  • the operation is such that the greater the amount of pedal depression, the greater the amount of vacuum in the intake manifold and the increase in minus pressure is applied to the vapor line 20, the interior of the tank 30, and to the pipe leg 60.
  • a supplemental opening 38 is made in the top 28. This opening is preferably covered by a screen 40 in order to prevent the entrance of extraneous matter to the tank 36.
  • the opening 38 is preferably of the order of /8 in diameter.
  • the butterfly valve 16 is provided with a control opening 42 of about 4 in order to take care of a condition Where the butterfly valve has been set for idling purposes as seen in Figure 2.
  • the fuel tank 30 may be mounted conveniently under the hood of the automobile. It is preferably maintained filled to about one-half to three-fourths of its capacity.
  • the conventional vacuum fuel line of the engine operates to draw the fuel and water vapors from the upper area of the auxiliary fuel tank 30 and radiator into the carburetor to be mixed with the fuel and vapor from the main fuel tank of the engine, not shown.
  • atmospheric air enters through pipe 32 and bubbles up through the fuel in tank 30, picking up particles of fuel as it moves upwardly through the same to thereby cause fuel vapor to accumulate in the top of the tank 30.
  • the auxiliary fuel in the form of vapor passes through the vapor line 20 to the intake manifold of the engine, thereby increasing the efliciency of the engine.
  • the auxiliary vapor from the tank 30 makes it possible to reduce the sizes of the jets in the carburetor. Motor acceleration is also aided by the additional source of gaseous fuel, thereby increasing engine performance.
  • the T line represented by parts 44, 46 and 48 is connected to the intake manifold 12 in order to equally distribute the minus pressure in the intake manifold to the chamber in which the butterfly valve operates, and from this chamber to the interior of the auxiliary tank 30.
  • a butterfly valve in said line, means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, a vapor line connected to said intake manifold and to said auxiliary tank whereby the amount of vacuum applied to said auxiliary tank is controlled by said butterfly valve, an air inlet pipe extending through said top and terminating short of the bottom of said tank, said butterfly valve having an opening extending therethrougb whereby to allow for idling purposes of said engine, a T construction comprising a pipe, the top portion of said T having ends connected to said intake manifold, the lower portion of said T being connected to said conduit means, and a supplemental line having one of its ends connected to said radiator and its other end connected to said vapor line.
  • means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, vapor line connected to said intake manifold and to said auxiliary tank whereby the amount of vacuum applied to said auxiliary tank is controlled by said buterfly valve, an L-shaped pipe union extending through said top and terminating short of the bottom of said tank, said L-shaped pipe union forming a part of said vapor line, said butterfly valve having an opening extending therethrough whereby to allow for idling purposes of said engine, a T construction comprising a pipe, the top portion of said T having ends connected to said intake manifold, the lower portion of said T being connected to said conduit means, and a supplemental line having one of its ends connected to said radiator and its other end connected to said L-shaped pipe union of said vapor line.
  • means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, a vapor line connected to said intake manifold and to said auxiliary tank, an air pipe extending through said top and terminating short of the bottom of said tank, whereby the amount of vacuum applied to said auxiliary tank is controlled by said butterfly valve, said butterfly valve having an opening extending therethrough whereby to allow for idling purposes of said engine, and a supplemental line having one of its ends connected to said radiator and its other end connected to said vapor line.
  • means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, a vapor line connected to said intake manifold and to said auxiliary tank, an air pipe extending through said top and terminating short of the bottom of said tank, whereby the amount of vacuum applied to said auxiliary tank is controlled by said butterfly valve, said butterfly valve having an opening extendingtherethrough whereby to allow for idling purposes of said engine, and a supplemental line having one of its ends connected to said radiator and its other end connected to said vapor line, said supplementary line having a smaller internal diameter than said vapor line.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Description

S. P. GREVAS Aug. 16, 1955 Filed Aug. 4, 1954 I IIfl/IIIIIIZ VIIIIIIIIA GASOLINE VAPOR ATTACHMENT FOR AUTOMOTIVE ENGINES INVENTOR. STEVE GREVAS.
(flaw/ray:
United States Patent Ofi ice 2,715,392 Patented Aug. 16, 1955 GASOLINE VAPOR ATTACHMENT FOR AUTOMOTIVE ENGINES Steve P. Grevas, Granite City, Ill.
Application August 4, 1954, Serial No. 447,822
4 Claims. (Cl. 123-25) This invention relates to an attachment for automobile engines and has for its purpose the following objects:
1. To greatly increase the mileage of an automobile by the use of a novel attachment means which supplies additional fuel vapor to the engine carburetor.
2. To supply additional fuel vapor to the carburetor through the medium of the conventional vacuum fuel feed system.
3. To manually control the amount of vacuum for supplying vapor fuel from an outside source to the carburetor by means of a conventional foot accelerator.
4. To provide a supplemental fuel vapor attachment for an engine which vapor is available for quick acceleration to thereby increase the performance of the engine,
5. To provide a fuel vapor supplying attachment that will permit the omission of floats, jets or other means for controlling fuel pressure and air, and which will permit the use of smaller jets in conventional carburetors.
6. To supply a Water vapor attachment for supplying supplementary water vapor to the charge having added fuel vapor in order to compensate for the added fuel vapor.
Other objects will appear hereinafter in the specification.
In the drawings:
Figure 1 is a side elevational view of an engine block, partly broken away and showing the novel attachment with its means for connecting the same to the fuel intake of the engine;
Figure 2 is a view of a conventional butterfly valve which has been modified in accordance with the present invention;
Figure 3 is a top plan view of the auxiliary tank, with the vapor line broken away to show the air inlet;
Figure 4 is an enlarged vertical section of an auxiliary fuel tank with pipe connections shown in full lines; and
Figure 5 is a perspective view of parts of the structure shown in Figure 1.
The present invention may be used either with or without the structure shown and claimed in my Patent No. 2,252,972, granted August 14, 1941. closed in this patent pertains to means for heating the gaseous fuel for automobile engines, after it has left the carburetor of the engine, while the present invention is directed to a means for supplying additional gaseous fuel from an independent source to the intake manifold of an engine, and alternatively to add more water vapor to the charge.
Referring to the drawings numeral indicates the engine block of an automobile engine, although it will be understood that the engine may be used in boats or other power driven vehicles such as airplanes. It will be further understood that the engine block shown may form one cylinder bank of a V-type engine, or the block shown may be that of an in-line type of engine.
The engine is provided with an intake manifold 12 and a carburetor 14 below which is located a conventional butterfly valve 16.
The invention dis- (about) internal diameter.
Connected into the intake manifold, as shown in Figures l and 5, so as to be affected by the adjustment of the butterfly valve is the supplementary fuel vapor line 20. The butterfly valve is controlled by a linkage arrangement shown at 22 that connects to a conventional accelerator pedal 24 which is conventionally mounted so as to be operated by the driver of the vehicle. The vapor line is connected to a T-shaped pipe union 26 forming part of the vapor line, and the vapor line 20, the left end and the vertical portion 18 of the T-shaped union have about a 5 internal diameter. One of the horizontal legs may be A and this leads to the radiator 70. In using this construction, the vapor which vaporizes from the water in the radiator mixes directly with the gas vapor in the pipe union 26 and from this point goes to the carburetor. The pipe union extends through the top 28 of the supplemental fuel tank 30. This tank preferably is of a size that will contain about two gallons of gasoline or other engine fuel. Also extending through the top 28 is an air inlet pipe 32 whose internal diameter is preferably and whose lower end 34 is located substantially two inches from the bottom 36 of the tank.
When the accelerator pedal is depressed, the butterfly valve is opened, this operation increasing the minus pressure in the intake manifold, and as the pedal is depressed further, a higher minus pressure or vacuum is applied to the vapor line 20. The operation is such that the greater the amount of pedal depression, the greater the amount of vacuum in the intake manifold and the increase in minus pressure is applied to the vapor line 20, the interior of the tank 30, and to the pipe leg 60.
In order to prevent a vapor lock in the tank 30, a supplemental opening 38 is made in the top 28. This opening is preferably covered by a screen 40 in order to prevent the entrance of extraneous matter to the tank 36. The opening 38 is preferably of the order of /8 in diameter.
The butterfly valve 16 is provided with a control opening 42 of about 4 in order to take care of a condition Where the butterfly valve has been set for idling purposes as seen in Figure 2.
As will be noted by reference to Figure 1, a hole is drilled adjacent each side of the intake manifold in order to connect thereto the pipe ends 44 having a Mr" These pipe ends form part of the central pipe 46 of the same diameter, and the lower end 48 of the T is connected to the vapor line 20, as shown in Figures 1 and 5.
The fuel tank 30 may be mounted conveniently under the hood of the automobile. It is preferably maintained filled to about one-half to three-fourths of its capacity.
The conventional vacuum fuel line of the engine operates to draw the fuel and water vapors from the upper area of the auxiliary fuel tank 30 and radiator into the carburetor to be mixed with the fuel and vapor from the main fuel tank of the engine, not shown. During this time atmospheric air enters through pipe 32 and bubbles up through the fuel in tank 30, picking up particles of fuel as it moves upwardly through the same to thereby cause fuel vapor to accumulate in the top of the tank 30. The auxiliary fuel in the form of vapor passes through the vapor line 20 to the intake manifold of the engine, thereby increasing the efliciency of the engine. The auxiliary vapor from the tank 30 makes it possible to reduce the sizes of the jets in the carburetor. Motor acceleration is also aided by the additional source of gaseous fuel, thereby increasing engine performance.
The T line represented by parts 44, 46 and 48 is connected to the intake manifold 12 in order to equally distribute the minus pressure in the intake manifold to the chamber in which the butterfly valve operates, and from this chamber to the interior of the auxiliary tank 30.
The above description and drawings disclose a single embodiment of the invention, and specific language has been employed in describing the several figures. It will, nevertheless, be understood that'no limitations of the scope of the invention are thereby contemplated, and that various alterations and modifications may be made such as would occur to one skilled in the art to which the invention relates.
I claim:
1. In an automotive engine having an intake manifold, a carburetor, an engine radiator, a fuel line and a butterfly valve in said line, means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, a vapor line connected to said intake manifold and to said auxiliary tank whereby the amount of vacuum applied to said auxiliary tank is controlled by said butterfly valve, an air inlet pipe extending through said top and terminating short of the bottom of said tank, said butterfly valve having an opening extending therethrougb whereby to allow for idling purposes of said engine, a T construction comprising a pipe, the top portion of said T having ends connected to said intake manifold, the lower portion of said T being connected to said conduit means, and a supplemental line having one of its ends connected to said radiator and its other end connected to said vapor line.
2. In an automotive engine having an intake manifold, a carburetor, an engine radiator, a fuel line and a butterfly valve in said line, means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, vapor line connected to said intake manifold and to said auxiliary tank whereby the amount of vacuum applied to said auxiliary tank is controlled by said buterfly valve, an L-shaped pipe union extending through said top and terminating short of the bottom of said tank, said L-shaped pipe union forming a part of said vapor line, said butterfly valve having an opening extending therethrough whereby to allow for idling purposes of said engine, a T construction comprising a pipe, the top portion of said T having ends connected to said intake manifold, the lower portion of said T being connected to said conduit means, and a supplemental line having one of its ends connected to said radiator and its other end connected to said L-shaped pipe union of said vapor line.
3. In an automotive engine having an intake manifold, a carburetor, an engine radiator, a fuel line and a butterfly valve in said line, means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, a vapor line connected to said intake manifold and to said auxiliary tank, an air pipe extending through said top and terminating short of the bottom of said tank, whereby the amount of vacuum applied to said auxiliary tank is controlled by said butterfly valve, said butterfly valve having an opening extending therethrough whereby to allow for idling purposes of said engine, and a supplemental line having one of its ends connected to said radiator and its other end connected to said vapor line.
4. In an automotive engine having an intake manifold, a carburetor, an engine radiator, a fuel line and a butterfly valve in said line, means for controlling the position of the butterfly valve including an accelerator pedal: the combination with said engine of an auxiliary tank, said tank having a top, a vapor line connected to said intake manifold and to said auxiliary tank, an air pipe extending through said top and terminating short of the bottom of said tank, whereby the amount of vacuum applied to said auxiliary tank is controlled by said butterfly valve, said butterfly valve having an opening extendingtherethrough whereby to allow for idling purposes of said engine, and a supplemental line having one of its ends connected to said radiator and its other end connected to said vapor line, said supplementary line having a smaller internal diameter than said vapor line.
Miller et al Sept. 1, 1936 Ennis Nov. 12, 1940
US447822A 1954-08-04 1954-08-04 Gasoline vapor attachment for automotive engines Expired - Lifetime US2715392A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956559A (en) * 1958-11-03 1960-10-18 Arthur O Johnson Fuel economizer for internal combustion engines
US3236214A (en) * 1962-08-20 1966-02-22 A O J Corp Fuel economizer and exhaust gas purifier for internal combustion engines
US4019477A (en) * 1975-07-16 1977-04-26 Overton Delbert L Duel fuel system for internal combustion engine
US4306520A (en) * 1979-12-18 1981-12-22 Slaton David E Water vapor injector for combustion engine air intake
US4410467A (en) * 1981-11-09 1983-10-18 Wentworth Fred Albert Jr Ion-vapor generator and method
USRE34315E (en) * 1988-06-22 1993-07-20 Remote mixture control tool
US5697331A (en) * 1996-11-12 1997-12-16 Hsu; Pao Yuan Environment-protection and combustion-supporting device used on the intake of an engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053200A (en) * 1933-10-30 1936-09-01 Charles F Miller Fuel modifying device for internal combustion engines
US2221472A (en) * 1938-11-14 1940-11-12 Charles E Ennis Auxiliary engine feeding device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053200A (en) * 1933-10-30 1936-09-01 Charles F Miller Fuel modifying device for internal combustion engines
US2221472A (en) * 1938-11-14 1940-11-12 Charles E Ennis Auxiliary engine feeding device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956559A (en) * 1958-11-03 1960-10-18 Arthur O Johnson Fuel economizer for internal combustion engines
US3236214A (en) * 1962-08-20 1966-02-22 A O J Corp Fuel economizer and exhaust gas purifier for internal combustion engines
US4019477A (en) * 1975-07-16 1977-04-26 Overton Delbert L Duel fuel system for internal combustion engine
US4306520A (en) * 1979-12-18 1981-12-22 Slaton David E Water vapor injector for combustion engine air intake
US4410467A (en) * 1981-11-09 1983-10-18 Wentworth Fred Albert Jr Ion-vapor generator and method
USRE34315E (en) * 1988-06-22 1993-07-20 Remote mixture control tool
US5697331A (en) * 1996-11-12 1997-12-16 Hsu; Pao Yuan Environment-protection and combustion-supporting device used on the intake of an engine

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