US2617656A - Carburetor construction - Google Patents

Carburetor construction Download PDF

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Publication number
US2617656A
US2617656A US71708A US7170849A US2617656A US 2617656 A US2617656 A US 2617656A US 71708 A US71708 A US 71708A US 7170849 A US7170849 A US 7170849A US 2617656 A US2617656 A US 2617656A
Authority
US
United States
Prior art keywords
choke
lever
throttle
choke valve
valve
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
Application number
US71708A
Other languages
English (en)
Inventor
John P Studnicky
Alphonse S Rick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Co
Original Assignee
Ford Motor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE492543D priority Critical patent/BE492543A/xx
Priority to NL150965D priority patent/NL150965C/xx
Application filed by Ford Motor Co filed Critical Ford Motor Co
Priority to US71708A priority patent/US2617656A/en
Priority to FR994599D priority patent/FR994599A/fr
Priority to GB24624/49A priority patent/GB661838A/en
Priority to CH282497D priority patent/CH282497A/de
Application granted granted Critical
Publication of US2617656A publication Critical patent/US2617656A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/02—Controlling by changing the air or fuel supply
    • F02D2700/0217—Controlling by changing the air or fuel supply for mixture compressing engines using liquid fuel
    • F02D2700/0225—Control of air or mixture supply
    • F02D2700/0228—Engines without compressor
    • F02D2700/0243—Engines without compressor by means of a plurality of throttle devices
    • 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
    • F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
    • F02M2700/1305—Auxiliary air supply devices for carburettors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87981—Common actuator
    • Y10T137/87997—Alternately seating
    • Y10T137/88005—Biased valve

Definitions

  • Figure l is a side elevation of a downdraft carburetor employing applicants invention
  • Figure 2 is a cross section along the line 22 in Figure 1
  • FIG. 3 is a schematic representation of the throttle-choke linkage in the normal or driving position
  • Figure 4 is a schematic representation of this linkage in the fast idling position
  • Figure 5 is a schematic representation of this linkage in the choked position.
  • the air is inducted at the uppermost part and sweeps down through the device and enters an intake manifold (not shown) which is bolted against face It.
  • the passage of air through the carburetor is subject to the control of two butterfly type valves, a choke valve which pivots on pin II and a throttle valve which pivots on pin I2.
  • the throttle valve is of course controlled by the accelerator pedal. Motion "is imparted to the throttle valve through ball l3 mounted on plate l4 which is securely riveted to pin
  • the choke valve is spring biased into the closedposition and normally is held open against this spring bias by the contact of arm I 9 with tine 20 of bifurcated lever 2
  • 9 is mounted on disc 22 which in turn is riveted to pin upon which is mounted the choke valve.
  • and choke control arm' 23 are both pivoted on stub shaft 24 as shown in . Figure 2 and are secured against axial motion by screw 25.
  • a pin 26 is mounted rigidly in lever 2
  • Lever 23 ( Figures 1, 3, 4 and 5) is pivotally mounted on screw 30 and is threaded at 'its lower end to receive adjusting set screw
  • Lever 29 is spring biased to rotate clockwise about screw 30.
  • the upper end of lever 29 is bent at right angles to provide a cam follower 3
  • coacts with cam face 32 which is part of lever 23.
  • rides up cam face 32 and causes lever 29 to rotate counterclockwise. This counterclockwise rotation of lever 29 moves adjusting screw
  • Figure 3 is the ordinary idling position in which choke butterfly 33 is in the fully open position and throttle butterfly 34 is in the idling position. In this position, choke butterfly 33 is held in the fully open position against its spring bias by the contact of arm I9 against tine 20.
  • Figure differs from Figure 4 in thatthearm 23 has been manually moved, to the full choke position.
  • pin, Z'G' engages the slot 21 and rotates lever 2
  • the position of the throttle valve remains unchanged.
  • This invention is an improvement upon the structure taught in United States Letters Patent 1,583,959, issued May 11,. 11926,, to H. D. Church. Church teaches. the concept of. achoke structure. They initial movement of. which, partially opens the throttle valve.
  • This structure has, been found inadequate for moderncarburetors if used, merely to secure vfast idling, or for warm-up purposes since even the slightest movement of the choke necessary to open the. throttle causes too rich a mixture to be produced.
  • Applicants structure avoids in this manner the. di'fficulty of. attempting to adjust a carburetor so that. it will give a single mixture suitable forboth a warm. and a cold, engine.
  • a choke valve In an internal combustion engine carburetor, a. choke valve, a chokevalve operating lever movably mounted, uponsaid carburetor, a movable throttle stop. carrying. membermounted on said carburetor, said choke valve operating lever being mechanically connected to both said. chokevalve and said throttle stop carrying memberso that the initial movement of said operating. lever moves said throttle valve toa predeterminedopen position without. moving, said. choke valve and further movement of said operatinglever moves said choke valve towardsits. closed position.
  • said choke valve operating lever and choke valve being mechanically interconnected so that substantial movement of the choke valve operating lever from the open towards the closed position occurs without causing movement of the choke valve from the full open position to effect an increased idling speed by use of the choke lever without. movingthe choke valve from its fully opened position.
  • a choke valve In an internal combustion engine carburetor, a choke valve, a choke valve operating lever movably mounted on said carburetor and mechanically interconnected with a throttle stop carrying lever so. that the initial movement of the choke operating lever from the open towards the closed position will partially open the throttle valve, and said choke valve operating lever and choke valvebeing mechanically interconnected through a lostmotion device so that substantial movement of the choke valve operating lever from the open towards the closed position occurs without causing; movementof the choke valve from the full open position to efiect an increased idling speed by use of the, choke lever without moving the choke valve, from its; fully opened position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
US71708A 1949-01-19 1949-01-19 Carburetor construction Expired - Lifetime US2617656A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE492543D BE492543A (enrdf_load_stackoverflow) 1949-01-19
NL150965D NL150965C (enrdf_load_stackoverflow) 1949-01-19
US71708A US2617656A (en) 1949-01-19 1949-01-19 Carburetor construction
FR994599D FR994599A (fr) 1949-01-19 1949-09-01 Carburateur
GB24624/49A GB661838A (en) 1949-01-19 1949-09-26 Improvements in or relating to carburettors for internal combustion engines
CH282497D CH282497A (de) 1949-01-19 1950-01-19 Vergaser für Brennkraftmaschinen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71708A US2617656A (en) 1949-01-19 1949-01-19 Carburetor construction

Publications (1)

Publication Number Publication Date
US2617656A true US2617656A (en) 1952-11-11

Family

ID=22103058

Family Applications (1)

Application Number Title Priority Date Filing Date
US71708A Expired - Lifetime US2617656A (en) 1949-01-19 1949-01-19 Carburetor construction

Country Status (6)

Country Link
US (1) US2617656A (enrdf_load_stackoverflow)
BE (1) BE492543A (enrdf_load_stackoverflow)
CH (1) CH282497A (enrdf_load_stackoverflow)
FR (1) FR994599A (enrdf_load_stackoverflow)
GB (1) GB661838A (enrdf_load_stackoverflow)
NL (1) NL150965C (enrdf_load_stackoverflow)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1018164A (en) * 1911-01-07 1912-02-20 Chapin Mfg Company Carbureter.
US1139851A (en) * 1912-04-06 1915-05-18 Excelsior Needle Company Carbureter.
US1209990A (en) * 1916-03-06 1916-12-26 Charles A Nevins Valve-operating mechanism.
US1887386A (en) * 1930-07-14 1932-11-08 Claude O Westover Carburetor
US2124777A (en) * 1933-12-11 1938-07-26 Bendix Aviat Corp Carburetor
US2140776A (en) * 1934-12-05 1938-12-20 Bendix Prod Corp Carburetor
US2325372A (en) * 1937-03-31 1943-07-27 Carter Carburetor Corp Carburetor
US2339867A (en) * 1942-07-28 1944-01-25 Carter Carburetor Corp Multiple valve control
US2420917A (en) * 1941-10-03 1947-05-20 Bendix Aviat Corp Carburetor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1018164A (en) * 1911-01-07 1912-02-20 Chapin Mfg Company Carbureter.
US1139851A (en) * 1912-04-06 1915-05-18 Excelsior Needle Company Carbureter.
US1209990A (en) * 1916-03-06 1916-12-26 Charles A Nevins Valve-operating mechanism.
US1887386A (en) * 1930-07-14 1932-11-08 Claude O Westover Carburetor
US2124777A (en) * 1933-12-11 1938-07-26 Bendix Aviat Corp Carburetor
US2140776A (en) * 1934-12-05 1938-12-20 Bendix Prod Corp Carburetor
US2325372A (en) * 1937-03-31 1943-07-27 Carter Carburetor Corp Carburetor
US2420917A (en) * 1941-10-03 1947-05-20 Bendix Aviat Corp Carburetor
US2339867A (en) * 1942-07-28 1944-01-25 Carter Carburetor Corp Multiple valve control

Also Published As

Publication number Publication date
GB661838A (en) 1951-11-28
BE492543A (enrdf_load_stackoverflow) 1900-01-01
NL150965C (enrdf_load_stackoverflow) 1900-01-01
CH282497A (de) 1952-04-30
FR994599A (fr) 1951-11-19

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