US3173373A - Means for feeding fuel to a combustion chamber - Google Patents
Means for feeding fuel to a combustion chamber Download PDFInfo
- Publication number
- US3173373A US3173373A US231620A US23162062A US3173373A US 3173373 A US3173373 A US 3173373A US 231620 A US231620 A US 231620A US 23162062 A US23162062 A US 23162062A US 3173373 A US3173373 A US 3173373A
- Authority
- US
- United States
- Prior art keywords
- chamber
- fuel
- combustion chamber
- piston
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 title description 23
- 238000002485 combustion reaction Methods 0.000 title description 11
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
- F23D11/26—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space with provision for varying the rate at which the fuel is sprayed
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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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
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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
- 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
- F02M2700/12—Devices or methods for making a gas mixture for a combustion engine
- F02M2700/123—Fuel supply devices
Definitions
- This invention relates to means for feeding fuel to a combustion chamber, the means being of the kind comprising in combination a hollow body closed at one end and having its other end adapted for connection to a combustion chamber, a hollow shaft extending within said body, a piston slidable on the shaft and having fluidtight seals with the shaft and body, said piston serving to divide the body into first and second chambers at said one and said other end thereof respectively, an inlet to the first chamber adapted for connection to a source of fuel whereby the piston can be moved by fuel pressure to increase the size of the first chamber and fill it with fuel, an inlet to the second chamber adapted for connection to a source of pressure, and means whereby in use pressure applied to the second chamber to move the piston when the first chamber is filled with fuel will cause fuel to be injected into the combustion chamber through the hollow shaft.
- the object of the invention is to provide such a means in a convenient form.
- means of the kind specified includes a single valve controlling the admission of fuel to the first chamber and the flow of fuel from the first chamber to the interior of the hollow shaft.
- a hollow cylindrical body 1 which at one end is closed by an integral wall 2 and at its opposite end is secured to the wall 3 of a combustion chamber. Secured to the wall 2 is one end of a hollow shaft 4 extending coaxially through the body 1, the interior of the shaft 4 being connected through a valve 5 and an atomiser 6 to the interior of the combustion chamber.
- a piston 7 Slidably mounted on the shaft is a piston 7 having fluid-tight seals with the shaft 4 and the body 1, and serving to divide the latter into first and second chambers 8, 9 at said one and other ends thereof respectively.
- a radial bore 10 adapted for connection to a source of fuel under pressure, the bore communicating through a filter 11 and a valve seating 12, and thence around a loose-fitting valve member 13 with an inlet port 14 extending axially within the wall 2 and communicating with the chamber 8.
- the valve member 13 is loaded by a spring 15 away from the seating 12, and in this position the end of the valve member 13 closes a further port 16 communicating with the interior of the hollow shaft.
- the arrangement is such that fuel fed past the valve member 13 to the chamber 8 fills the chamber 8 with fuel whilst increasing its size until the piston 7 contacts a stop which as shown is the wall 3.
- the chamber 9 has an inlet 17 adjacent one end thereof, so that the inlet 17 is always in the second chamber irrespective of the position of the piston 7.
- This inlet 17 is in use connected intermittently to a source of pressure, which may conveniently be the pressure of the air supplied to the combustion chamber.
- This pressure will move the piston '7 to eject fuel from the chamber 8.
- a source of pressure which may conveniently be the pressure of the air supplied to the combustion chamber.
- This pressure will move the piston '7 to eject fuel from the chamber 8.
- the valve member 13 is formed with a shoulder 13a adjacent the port 14, and the pressure of fuel acting on the shoulder 13a serves to move the valve member 13 against the spring 15 onto the seating 12 so that the chamber 8 is out of communication with the source of fuel. Movement of the valve member 13 simultaneously allows communication to be established between the chamber 8 and the interior of the hollow shaft, so that fuel is fed to the combustion chamber.
- Means for feeding fuel to a combustion chamber comprising in combination a hollow body, means closing one end of said body, the other end of said body being adapted for connection to a combustion chamber, a hollow shaft extending within said body, a piston slidable on said shaft and contacting the body, said piston dividing said body into first and second chambers at said one end and at said other end thereof respectively, fluid-tight seals between said piston and the shaft and body, a port in communication with said second chamber, an inlet at said one end of the body, passage means establishing communication between said inlet and said first chamber and the interior of the hollow shaft, a valve in said passage means, means urging said valve towards a first position in which it establishes communication between said inlet and said first chamber but blocks communication between said first chamber and the interior of said hollow shaft, whereby when said inlet is connected to a source of fuel under pressure said piston will be moved in a direction to decrease the size of said second chamber and fill said first chamber with fuel, means whereby when said second chamber is subjected to a
Description
March 16, 1965 C. C. JONES MEANS FOR FEEDING FUEL TO A COMBUSTION CHAMBER Filed Oct. 19, 1962 I 1 I v \Q I T m 0 0 o 0 0 0 Q Q 0 vi ,A/Q
/ Q j j l\ E 0o a ;Q' 2mm Q 1 T o n w m United States Patent 3,173,373 MEANS FOR FEEDING FUEL T!) A (SGM- BUSTEGN QHAMBER Cyril harles Jones, Stanmore, England, assignor to Rotax Limited, London, England Filed Set. 19, 1962, Ser. No. 231,620 Claims priority, application Great Britain, Oct. 20, 1961,
1 Claim. (Cl. 103-52) This invention relates to means for feeding fuel to a combustion chamber, the means being of the kind comprising in combination a hollow body closed at one end and having its other end adapted for connection to a combustion chamber, a hollow shaft extending within said body, a piston slidable on the shaft and having fluidtight seals with the shaft and body, said piston serving to divide the body into first and second chambers at said one and said other end thereof respectively, an inlet to the first chamber adapted for connection to a source of fuel whereby the piston can be moved by fuel pressure to increase the size of the first chamber and fill it with fuel, an inlet to the second chamber adapted for connection to a source of pressure, and means whereby in use pressure applied to the second chamber to move the piston when the first chamber is filled with fuel will cause fuel to be injected into the combustion chamber through the hollow shaft.
The object of the invention is to provide such a means in a convenient form.
According to the invention, means of the kind specified includes a single valve controlling the admission of fuel to the first chamber and the flow of fuel from the first chamber to the interior of the hollow shaft.
The accompanying drawing is a sectional side view illustrating one example of the invention.
Referring to the drawing, there is provided a hollow cylindrical body 1 which at one end is closed by an integral wall 2 and at its opposite end is secured to the wall 3 of a combustion chamber. Secured to the wall 2 is one end of a hollow shaft 4 extending coaxially through the body 1, the interior of the shaft 4 being connected through a valve 5 and an atomiser 6 to the interior of the combustion chamber.
Slidably mounted on the shaft is a piston 7 having fluid-tight seals with the shaft 4 and the body 1, and serving to divide the latter into first and second chambers 8, 9 at said one and other ends thereof respectively.
Within the integral wall 2 is a radial bore 10 adapted for connection to a source of fuel under pressure, the bore communicating through a filter 11 and a valve seating 12, and thence around a loose-fitting valve member 13 with an inlet port 14 extending axially within the wall 2 and communicating with the chamber 8. The valve member 13 is loaded by a spring 15 away from the seating 12, and in this position the end of the valve member 13 closes a further port 16 communicating with the interior of the hollow shaft.
The arrangement is such that fuel fed past the valve member 13 to the chamber 8 fills the chamber 8 with fuel whilst increasing its size until the piston 7 contacts a stop which as shown is the wall 3.
3,173,373 Patented Mar. 16, 1965 The chamber 9 has an inlet 17 adjacent one end thereof, so that the inlet 17 is always in the second chamber irrespective of the position of the piston 7. This inlet 17 is in use connected intermittently to a source of pressure, which may conveniently be the pressure of the air supplied to the combustion chamber. This pressure will move the piston '7 to eject fuel from the chamber 8. Initially there will be a spill of fuel past the valve member 13. However, the latter is formed with a shoulder 13a adjacent the port 14, and the pressure of fuel acting on the shoulder 13a serves to move the valve member 13 against the spring 15 onto the seating 12 so that the chamber 8 is out of communication with the source of fuel. Movement of the valve member 13 simultaneously allows communication to be established between the chamber 8 and the interior of the hollow shaft, so that fuel is fed to the combustion chamber.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
Means for feeding fuel to a combustion chamber, comprising in combination a hollow body, means closing one end of said body, the other end of said body being adapted for connection to a combustion chamber, a hollow shaft extending within said body, a piston slidable on said shaft and contacting the body, said piston dividing said body into first and second chambers at said one end and at said other end thereof respectively, fluid-tight seals between said piston and the shaft and body, a port in communication with said second chamber, an inlet at said one end of the body, passage means establishing communication between said inlet and said first chamber and the interior of the hollow shaft, a valve in said passage means, means urging said valve towards a first position in which it establishes communication between said inlet and said first chamber but blocks communication between said first chamber and the interior of said hollow shaft, whereby when said inlet is connected to a source of fuel under pressure said piston will be moved in a direction to decrease the size of said second chamber and fill said first chamber with fuel, means whereby when said second chamber is subjected to a source of pressure supplied by way of said port said piston will move in a direction to decrease the size of said first chamber and will also move said valve to a second position, said valve when in said second position blocking communication between said inlet and said first chamber but establishing communication between said first chamber and the interior of said shaft, and a non-return valve in said hollow shaft through which fuel is fed when said piston is moved in a direction to decrease the size of said first chamber.
References (Iited by the Examiner UNITED STATES PATENTS 2,604,310 7/52 Brown.
2,631,091 3/53 Kuentzel et al 261-82 X 2,685,952 8/54 Hamlin et al 261-82 X 2,770,394 11/56 Mueller 222-389 X 2,804,241 8/57 Mc Dowall et a1 222-335 3,067,810 12/62 Muzic 158-501 LOUIS I. DEMBO, Primary Examiner.
EUGENE F. BLANCHARD, Examiner.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB37662/61A GB988951A (en) | 1961-10-20 | 1961-10-20 | Means for feeding fuel to a combustion chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
US3173373A true US3173373A (en) | 1965-03-16 |
Family
ID=10398083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US231620A Expired - Lifetime US3173373A (en) | 1961-10-20 | 1962-10-19 | Means for feeding fuel to a combustion chamber |
Country Status (2)
Country | Link |
---|---|
US (1) | US3173373A (en) |
GB (1) | GB988951A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604310A (en) * | 1949-03-23 | 1952-07-22 | Gen Bronze Corp | Carbonator |
US2631091A (en) * | 1949-05-21 | 1953-03-10 | Standard Oil Co | High-pressure contacting apparatus |
US2685952A (en) * | 1954-08-10 | Coin controlled beverage dispenser | ||
US2770394A (en) * | 1954-05-04 | 1956-11-13 | Automatic Canteen Co | Method and apparatus for dispensing a measured amount of beverage ingredients |
US2804241A (en) * | 1951-09-15 | 1957-08-27 | Gen Motors Corp | Flow control meter |
US3067810A (en) * | 1960-03-21 | 1962-12-11 | Thompson Ramo Wooldridge Inc | Bladder fuel tank |
-
1961
- 1961-10-20 GB GB37662/61A patent/GB988951A/en not_active Expired
-
1962
- 1962-10-19 US US231620A patent/US3173373A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685952A (en) * | 1954-08-10 | Coin controlled beverage dispenser | ||
US2604310A (en) * | 1949-03-23 | 1952-07-22 | Gen Bronze Corp | Carbonator |
US2631091A (en) * | 1949-05-21 | 1953-03-10 | Standard Oil Co | High-pressure contacting apparatus |
US2804241A (en) * | 1951-09-15 | 1957-08-27 | Gen Motors Corp | Flow control meter |
US2770394A (en) * | 1954-05-04 | 1956-11-13 | Automatic Canteen Co | Method and apparatus for dispensing a measured amount of beverage ingredients |
US3067810A (en) * | 1960-03-21 | 1962-12-11 | Thompson Ramo Wooldridge Inc | Bladder fuel tank |
Also Published As
Publication number | Publication date |
---|---|
GB988951A (en) | 1965-04-14 |
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