US2297217A - Fuel control for combustion engines - Google Patents

Fuel control for combustion engines Download PDF

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Publication number
US2297217A
US2297217A US255977A US25597739A US2297217A US 2297217 A US2297217 A US 2297217A US 255977 A US255977 A US 255977A US 25597739 A US25597739 A US 25597739A US 2297217 A US2297217 A US 2297217A
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US
United States
Prior art keywords
gas
conduit
passage
engine
carburetter
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Expired - Lifetime
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US255977A
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English (en)
Inventor
Hartner-Seberich Richard
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Individual
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Individual
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Publication date
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Publication of US2297217A publication Critical patent/US2297217A/en
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Classifications

    • 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
    • F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
    • F02M13/08—Carburettors adapted to use liquid and gaseous fuels, e.g. alternatively

Definitions

  • the invention relates to an improved fuel control for combustion engines, and is concerned with internal combustion engines, particularly for motor vehicles, operated normally with gas and from time to time with liquid fuel.
  • the suction passage for the carburetter opens into the suction passage for the gas-producer.
  • the engine draws in either-gas or liquid fuel, advantageously gasoline, mixed with air.
  • the closure members of the control for example throttle flaps, in the known arrangements, are
  • a throttle valve 3 is provided infront of the branching of the gas-suction ment serves the purpose, on the one hand, of
  • the driver should be constrained to drive with additional gasoline not more frequently than is necessary.
  • the arrangement described only solvesthis problem incompletely, because it does not exclude a misuse of the gasoline operation if the driver drives unnecessarily with gasoline and gas or does not ignite the gas producer at all, or allows the same to burn idly.
  • the carburetter passage is arranged as a closed by-pass which branches from any desired point in the gas-suction passage and opens into it again as close as Possible to the inlet ports of the cylinders, the passage cross-section of the carburetter passage being made so narrow, or the carburetter being made so small, that the operation with liquid fuel permits only of an idle-running maxi-.
  • Figure 1 is a sectional elevation of an engine having a gas-suction pipe serving-four cylinders I together with the carburetter passage arranged thereon:
  • ' Figure 2 is a cross-section and inverted plan of pipe I.
  • This throttle 3 is connected to suitable control means such as a pedal as shown in the drawing, and serves for the normal control of the quantity of air-gas mixture flowing to the engine.
  • the pipes 4 4 are extended,
  • a carburetter 5 for liquid fuel is included in the by- I pass 4 and a throttle valve 6 is provided beyond the carburetter jet as control means for the quantity of carburetter mixture.
  • Liquid fuel is supplied to the carburetter through the pipe I.
  • a second valve 8 is arranged in the gas-suction pipe I beyond the branching of the by-pass 4. This throttle 8 as a change-over throttle for the change-over of the arrangement from operation with gaseous fuel to operation with liquid fuel or vice versa.
  • the suction-pipe space beyond the valve 8 is cut of! from the suction action in the passage 4 by the said valve 8 and the air for carburation is taken from the passage leading from the gas producer, which in turn increases the draft in the gas producer and facilitates its kindling.
  • the control of the quantity of carburetter mixture is effected by the throttle 6.
  • the valves 8 and 3 are opened, whereupon the suction of the engine acts in the passage I because its resistance to flow is lower than that of the passage 4.
  • the control of the quantity of the gas supply is eifected by the throttle 3, whilst the valve 8 merely controls the degree of change-over from gas operation to liquid operation or vice versa.
  • valve It! serves for mixture control in the case of gas operation.
  • the air connection 9 opens tangentially into the pipe I, the air entering through this connection imparts a rotatory motion to the gas-flow passing through the pipe I in the direction of the arrow, but without considerable pressure losses being caused by sudden changes of compression.
  • the valve 8 arranged beyond the mouth of the connection 9, intersects the rotating gas flow o'n a helical line and thus facilitates,
  • a screen or gauze H which serves as a gas and air filter and as a safety device for preventing the striking back of flame.
  • the cross-section of. the passage 4 is made so narrow, or the carburetter is made so small, that an idle-running output only can be achieved with liquidoperation.
  • a further precautionagainst misuse of the liquid operation can be provided by keeping the fuel vessel, which supplies the carburetter with liquid fuel, very small. This prevents the driver from driving for a considerable time with liquid and gas.
  • a second conduit provided with one or more branches at one end within said gas manifold for direct communication with said cyl inders, and communicating at its other end with said first conduit intermediate said manifold and and'means bureter.
  • a gas producer in combination, a gas producer, means for connecting said producer to said engine including a. first conduit, a source of liquid fuel, a second conduit substantially smaller than said first conduit connected at one end to'said engine and at its other end to said first conduit intermediate said gas pro-' ducer and said engine, a carbureter in said second conduit for supplying liquid fuel to said engine, and valve means for controlling the flow of the gas and liquid fuel.
  • said second conduit is connected substantially tangentially to said first conduit, in combination with an air inductionpipe connected tangentially to said egst conduit directly opposite to the connection with said second conduit, and valve or controlling the air in said induction including a carbureter, means for connecting said producer and said source for supplying said fuel to said engine, and adjustable means for supplying air to said carbureter through said gas producer when said engine is being supplied with llqllld fuel, whereby thedraft in said gas producer is increased.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
US255977A 1937-02-04 1939-02-11 Fuel control for combustion engines Expired - Lifetime US2297217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE203518X 1937-02-04

Publications (1)

Publication Number Publication Date
US2297217A true US2297217A (en) 1942-09-29

Family

ID=5776871

Family Applications (1)

Application Number Title Priority Date Filing Date
US255977A Expired - Lifetime US2297217A (en) 1937-02-04 1939-02-11 Fuel control for combustion engines

Country Status (4)

Country Link
US (1) US2297217A (fr)
CH (1) CH203518A (fr)
FR (1) FR833094A (fr)
GB (1) GB493421A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276345B1 (en) 1998-12-23 2001-08-21 Kohler Co. Dual fuel system for an internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142430C2 (de) * 1981-10-26 1984-11-22 Clodoveo 6718 Grünstadt Utili Leerlaufanordnung an einem Verbrennungsmotor für Flüssiggas
CN102758697A (zh) * 2012-08-14 2012-10-31 庄景阳 车速信号改变进气流量的控制装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6276345B1 (en) 1998-12-23 2001-08-21 Kohler Co. Dual fuel system for an internal combustion engine

Also Published As

Publication number Publication date
CH203518A (de) 1939-03-15
GB493421A (en) 1938-10-07
FR833094A (fr) 1938-10-11

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