US2872877A - Fuel pump - Google Patents
Fuel pump Download PDFInfo
- Publication number
- US2872877A US2872877A US480211A US48021155A US2872877A US 2872877 A US2872877 A US 2872877A US 480211 A US480211 A US 480211A US 48021155 A US48021155 A US 48021155A US 2872877 A US2872877 A US 2872877A
- Authority
- US
- United States
- Prior art keywords
- venturi
- fluid
- throat
- pump
- conduit
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F7/00—Pumps displacing fluids by using inertia thereof, e.g. by generating vibrations therein
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- 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
- F02M2700/438—Supply of liquid to a carburettor reservoir with limitation of the liquid level; Aerating devices; Mounting of fuel filters
- F02M2700/4388—Supply of liquid to a carburettor reservoir with limitation of the liquid level; Aerating devices; Mounting of fuel filters with fuel displacement by a pump
- F02M2700/439—Supply of liquid to a carburettor reservoir with limitation of the liquid level; Aerating devices; Mounting of fuel filters with fuel displacement by a pump the pump being a membrane pump
Definitions
- This invention relates to the field of fluid transfer and more particularly to a pump particularly adapted for use wherein small quantities of a liquid must be delivered reliably and economically against a comparatively low head.
- This pump has been primarily developed as a means for establishing a head of gasoline in the carburetor of an internal combustion engine when such carburetor is located above the level of the fuel in the fuel tank.
- venturi employed to accomplish the actual pumping is denominated as 10.
- the throat 11 of this venturi is surrounded by a sleeve 12 into which is connected suction conduit 13.
- the interior of sleeve 12 communicates with the interior of venturi through openings 14 provided in throat 11 of venturi 10.
- the enlarged portion of venturi 10 is closed on one side by diaphragm 15 which supports magnet slug 16.
- the other side of the venturi is closed by surge diaphragm 17 which together with end piece 18 defines surge chamber 19.
- Discharge conduit 20 is connected to the enlarged portion of the venturi adjacent surge chamber 19.
- Magnet slug 16 forms a portion of the magnetic circuit which includes frame 21. This magnetic circuit is energized by coil 22 which in turn is activated from any convenient source of electrical energy. When coil 22 is energized magnet slug 16 is attracted to frame 21 and carries with it diaphragm 15. p
- Diaphragm 15 is sufli ciently resilient to assume its original position when coil 22 is deactivated. When it returns to its original position it causes a reverse flow of liquid through throat 11 of venturi 10. Inasmuch as a venturi is not sensitive to the direction of flow, each of these flows causes an area of reduced pressure in venturi throat 11 and causes the liquid to be pumped to flow into the system through conduit 13, sleeve 12 and opening 14. It is apparent that there will be an intermittent integrated flow of liquid to the right through the venturi and out of the pump through discharge conduit 20. Surge diaphragm 17 and surge chamber 19 serve the obvious. purpose of damping pulsations from the pump.
- the frequency with which coil 22 is energized should correspond to the natural frequency of the system including the liquid to be pumped. However, this is not essential to the operation of the invention and coil 22 may be activated at any frequency well below the system's natural frequency. For example,
- Diaphragm 15 has been particularly disclosed as driven electrically. However this has only been done for a convenience of illustration and it is obvious that this diaphragm may be driven by any convenient means.
- Such drive means may be mechanical, hydraulic or pneumatic.
- a fluid pump comprising a stationary venturi, closure means for the ends of said venturi, said venturi and closure means forming a chamber adapted to be filled with fluid, an intake conduit, 8. connection between the intake conduit and the throat of the venturi, a discharge conduit, a connection between the discharge conduit and the venturi at a location remote from the throat and fluid displacement means having a fluid connection with said venturi for causing an oscillating flow of fluid through the throat of the venturi when said chamber is filled with fluid whereby a pressure differential is genenerated between said intake and discharge conduits.
- a fluid pump comprising a stationary venturi, closure means for the ends of said venturi, said venturi and closure means forming a chamber adapted to be filled with fluid, an intake conduit, a connection between the intake conduit and the throat of the venturi, a discharge conduit, a connection between the discharge conduit and the venturi at a location remote from the throat and fluid displacement means comprising a reciprocating member and having a fluid connection with said venturi for causing an oscillating flow of fluid through the throat of the venturi when said chamber is filled with fluid whereby a pressure difierential is generated between said intake and discharge conduits.
- a fluid filled pump comprising a stationary venturi, closure means for the ends of said venturi, said venturi and closure means forming a chamber adapted to be filled with fluid, an intake conduit, a connection between the intake conduit and the throat of the venturi, a discharge conduit, a connection between the discharge conduit and the venturi at a location remote from the throat and fluid displacement means having a fluid connection with said venturi for causing an oscillating flow of fluid through the throat of the venturi at a frequency of vibration which is essentially the natural frequency of vibration of the fluid filled pump whereby a pressure difierential is generated between said intake and discharge conduits at such frequency.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
Description
R. D. BREWER Feb. 10, 1959 FUEL PUMP Filed Jan. 6, 1955 R. 0. BREWER.
INVENTOR. e, c. zeal y: 9*
' ATTORNEY n'uug v FUEL PUMP Richard D. Brewer, Dearborn, Mich., assignor to Ford Motor Company, Dearborn, Mich., a corporation of Delaware Application January 6, 1955, Serial No. 480,211 3 Claims. (Cl. 103258) This invention relates to the field of fluid transfer and more particularly to a pump particularly adapted for use wherein small quantities of a liquid must be delivered reliably and economically against a comparatively low head. This pump has been primarily developed as a means for establishing a head of gasoline in the carburetor of an internal combustion engine when such carburetor is located above the level of the fuel in the fuel tank.
This invention should be considered in conjunction with the drawing which is a cross section of such a fuel pump.
In the drawing the venturi employed to accomplish the actual pumping is denominated as 10. The throat 11 of this venturi is surrounded by a sleeve 12 into which is connected suction conduit 13. The interior of sleeve 12 communicates with the interior of venturi through openings 14 provided in throat 11 of venturi 10. The enlarged portion of venturi 10 is closed on one side by diaphragm 15 which supports magnet slug 16. The other side of the venturi is closed by surge diaphragm 17 which together with end piece 18 defines surge chamber 19. Discharge conduit 20 is connected to the enlarged portion of the venturi adjacent surge chamber 19.
This action causes a flow of the fluid to be pumped through the throat 11 of orifice 10 and establishes in such orifice a zone of low pressure. Diaphragm 15 is sufli ciently resilient to assume its original position when coil 22 is deactivated. When it returns to its original position it causes a reverse flow of liquid through throat 11 of venturi 10. Inasmuch as a venturi is not sensitive to the direction of flow, each of these flows causes an area of reduced pressure in venturi throat 11 and causes the liquid to be pumped to flow into the system through conduit 13, sleeve 12 and opening 14. It is apparent that there will be an intermittent integrated flow of liquid to the right through the venturi and out of the pump through discharge conduit 20. Surge diaphragm 17 and surge chamber 19 serve the obvious. purpose of damping pulsations from the pump.
For the optimum operation the frequency with which coil 22 is energized should correspond to the natural frequency of the system including the liquid to be pumped. However, this is not essential to the operation of the invention and coil 22 may be activated at any frequency well below the system's natural frequency. For example,
2,872,877. Patented Feb. 10, 1959 in an ordinary internal combustion engine the coil 22 may be activated by the same controls which energize the spark plug or any other means which will make the energization of coil 22 coextensive in time with the operation of the engine. Since this pump is not inherently self priming it should be located below the level of the liquid to be pumped. Diaphragm 15 has been particularly disclosed as driven electrically. However this has only been done for a convenience of illustration and it is obvious that this diaphragm may be driven by any convenient means. Such drive means may be mechanical, hydraulic or pneumatic.
It will be understood that the invention is not to be limited to the exact construction shown and described, but that various changes and modifications may be made without departing from the spirit and scope of the invention, as defined in the appended claims.
What I claim as my invention:
1. A fluid pump comprising a stationary venturi, closure means for the ends of said venturi, said venturi and closure means forming a chamber adapted to be filled with fluid, an intake conduit, 8. connection between the intake conduit and the throat of the venturi, a discharge conduit, a connection between the discharge conduit and the venturi at a location remote from the throat and fluid displacement means having a fluid connection with said venturi for causing an oscillating flow of fluid through the throat of the venturi when said chamber is filled with fluid whereby a pressure differential is genenerated between said intake and discharge conduits.
2. A fluid pump comprising a stationary venturi, closure means for the ends of said venturi, said venturi and closure means forming a chamber adapted to be filled with fluid, an intake conduit, a connection between the intake conduit and the throat of the venturi, a discharge conduit, a connection between the discharge conduit and the venturi at a location remote from the throat and fluid displacement means comprising a reciprocating member and having a fluid connection with said venturi for causing an oscillating flow of fluid through the throat of the venturi when said chamber is filled with fluid whereby a pressure difierential is generated between said intake and discharge conduits.
3. A fluid filled pump comprising a stationary venturi, closure means for the ends of said venturi, said venturi and closure means forming a chamber adapted to be filled with fluid, an intake conduit, a connection between the intake conduit and the throat of the venturi, a discharge conduit, a connection between the discharge conduit and the venturi at a location remote from the throat and fluid displacement means having a fluid connection with said venturi for causing an oscillating flow of fluid through the throat of the venturi at a frequency of vibration which is essentially the natural frequency of vibration of the fluid filled pump whereby a pressure difierential is generated between said intake and discharge conduits at such frequency.
References Cited in the file of this patent UNITED STATES PATENTS 2,077,024 Tanner Apr. 13, 1937 2,318,128 Tabb May 4, 1943 2,508,950 Kaplan May 23, 1950 2,640,424 Babitch June 2, 1953
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US480211A US2872877A (en) | 1955-01-06 | 1955-01-06 | Fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US480211A US2872877A (en) | 1955-01-06 | 1955-01-06 | Fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US2872877A true US2872877A (en) | 1959-02-10 |
Family
ID=23907097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US480211A Expired - Lifetime US2872877A (en) | 1955-01-06 | 1955-01-06 | Fuel pump |
Country Status (1)
Country | Link |
---|---|
US (1) | US2872877A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3023708A (en) * | 1957-06-14 | 1962-03-06 | Thiele Ernst | Valveless pump |
US3103179A (en) * | 1960-08-29 | 1963-09-10 | Hayward Tyler & Company Ltd | Pumps |
US3733616A (en) * | 1971-05-03 | 1973-05-22 | Birch R | Electromagnetically actuated artificial heart |
US4021146A (en) * | 1973-11-02 | 1977-05-03 | United Kingdom Atomic Energy Authority | Fluidic flow control devices and pumping systems |
WO1987007683A2 (en) * | 1986-06-14 | 1987-12-17 | Lohberg Hans Martin | Electromagnetic diaphragm pump |
US6514047B2 (en) | 2001-05-04 | 2003-02-04 | Macrosonix Corporation | Linear resonance pump and methods for compressing fluid |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2077024A (en) * | 1934-09-12 | 1937-04-13 | Tanner James Harmon | Suction device |
US2318128A (en) * | 1940-10-22 | 1943-05-04 | Eisemann Magneto Corp | Fluid transfer apparatus |
US2508950A (en) * | 1948-08-17 | 1950-05-23 | Kaplan Murray | Fluid apparatus |
US2640424A (en) * | 1948-01-10 | 1953-06-02 | Gen Motors Corp | Fuel pump |
-
1955
- 1955-01-06 US US480211A patent/US2872877A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2077024A (en) * | 1934-09-12 | 1937-04-13 | Tanner James Harmon | Suction device |
US2318128A (en) * | 1940-10-22 | 1943-05-04 | Eisemann Magneto Corp | Fluid transfer apparatus |
US2640424A (en) * | 1948-01-10 | 1953-06-02 | Gen Motors Corp | Fuel pump |
US2508950A (en) * | 1948-08-17 | 1950-05-23 | Kaplan Murray | Fluid apparatus |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3023708A (en) * | 1957-06-14 | 1962-03-06 | Thiele Ernst | Valveless pump |
US3103179A (en) * | 1960-08-29 | 1963-09-10 | Hayward Tyler & Company Ltd | Pumps |
US3733616A (en) * | 1971-05-03 | 1973-05-22 | Birch R | Electromagnetically actuated artificial heart |
US4021146A (en) * | 1973-11-02 | 1977-05-03 | United Kingdom Atomic Energy Authority | Fluidic flow control devices and pumping systems |
WO1987007683A2 (en) * | 1986-06-14 | 1987-12-17 | Lohberg Hans Martin | Electromagnetic diaphragm pump |
WO1987007683A3 (en) * | 1986-06-14 | 1988-02-11 | Lohberg Hans Martin | Electromagnetic diaphragm pump |
US6514047B2 (en) | 2001-05-04 | 2003-02-04 | Macrosonix Corporation | Linear resonance pump and methods for compressing fluid |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4787823A (en) | Electromagnetic linear motor and pump apparatus | |
US3250219A (en) | Pump | |
US3293516A (en) | Electromagnetically driven pumps, particularly fuel pumps | |
US2322913A (en) | Pump | |
US3302582A (en) | Electromagnetic pump | |
GB1389869A (en) | Diaphragm pumps with pressure pulsation damping chambers | |
US2872877A (en) | Fuel pump | |
US3486456A (en) | Valving for electromagnetic pump | |
GB1218536A (en) | Internal combustion engine fuel systems and carburetters therefor | |
US1623049A (en) | Fuel-supply system | |
GB1039165A (en) | Improvements in or relating to reciprocating fluid pumps | |
US2533164A (en) | Electromagnetic pump | |
GB1399786A (en) | Pump for liquids | |
US1330919A (en) | Hydrocarbon-motor | |
GB1325698A (en) | Injector for fuel | |
GB1484674A (en) | Pump for liquids | |
US2260180A (en) | Constant pressure diaphragm pump | |
GB1048496A (en) | Venturi fluid pump | |
US1729723A (en) | Fuel-feed system | |
US3364869A (en) | Triple cover fuel pump | |
US1570381A (en) | Pump mechanism | |
US1868970A (en) | Liquid fuel feeding system | |
US1737389A (en) | Electric motor | |
GB1304427A (en) | ||
US1837506A (en) | Electric motor for fuel feeding systems |