US3385221A - Multi-plunger engine fuel oil pump - Google Patents

Multi-plunger engine fuel oil pump Download PDF

Info

Publication number
US3385221A
US3385221A US621165A US62116567A US3385221A US 3385221 A US3385221 A US 3385221A US 621165 A US621165 A US 621165A US 62116567 A US62116567 A US 62116567A US 3385221 A US3385221 A US 3385221A
Authority
US
United States
Prior art keywords
plunger
pump
engine
fuel
fuel oil
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
US621165A
Other languages
English (en)
Inventor
John H Parks
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to US621165A priority Critical patent/US3385221A/en
Priority to GB9401/68A priority patent/GB1213194A/en
Priority to FR1555333D priority patent/FR1555333A/fr
Priority to JP43013859A priority patent/JPS4827331B1/ja
Priority to DE19681601983 priority patent/DE1601983A1/de
Priority to BE711842D priority patent/BE711842A/xx
Application granted granted Critical
Publication of US3385221A publication Critical patent/US3385221A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/005—Arrangements of fuel feed-pumps with respect to fuel injection apparatus
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke

Definitions

  • Fuel pumps containing individual plungers and barrels in a comm-on housing in which the pumps are immersed in fuel oil, also serving as a lubricant for the moving parts, are known. It is also known to time and meter the flow of fuel to and from the pump barrels by ports leading through the plunger and valved by adjustable collars through which the plungers reciprocate.
  • the pump assemblies are a simple economical type with fixed timing and governor control of volume per stroke delivered to the engine cylinders.
  • FIG. 1 is a longitudinal vertical sectional view through a pump housing showing pumps and controls therefor embodying the present invention
  • FIG. 2 is a sectional view taken 011 the line IIII of FIG. 1;
  • FIG. 3 is a fragmentary detail of a portion of control mechanism shown in FIGS. 1 and 2;
  • FIG. 4 is a further detail of a part of the mechanism shown in FIG. 3;
  • FIG. 5 is a fragmentary view in the section taken on the line VV of FIG. 1;
  • FIG. 6 is a fragmentary section taken on the line V1- VI of FIG. 5.
  • a pump housing 16 is shown as journaling a camshaft 12 drive-n by a gear 14 which may be part of an engine timing gear train not shown.
  • the camshaft drives the plungers of a plurality of identical fuel oil pumps such as generally indicated at 16.
  • the principles of the present invention will, however, apply to a single line of pumps for an engine of any number of cylinders as will be apparent upon reading the ensuing description.
  • the transfer pump comprises two pump gears 18 and 20 shown in FIGS. 1 and 5 with the driving gear 18 keyed to the camshaft 12 and both gears housed in an auxiliary side wall or cover plate 22 of the pump housing 10.
  • fuel from a source of supply not shown enters through a conduit 24 and passage 26 where it is delivered by the pump gears to a passage 28 (see also FIG. 6) which enters the pump housing 10.
  • a pump plunger 30 is reciprocable within a barrel 32 welded or otherwise suitably secured to a bonnet 34 which is threaded into an opening in the pump housing and adapted for communication with the combustion chamber of an engine cylinder.
  • a spring check valve 36 in the bonnet closes the pump barrel and is opened to admit oil to the combustion chamber only when pressure in the barrel attains a predetermined maximum.
  • a spring 38 urges the plunger toward retraction from the barrel being disposed between a shoulde-r on the exterior of the barrel and a spring seat 40.
  • the lower end of the plunger seats in a cam follower comprising an apron portion 42 slidable in a suitable bore formed in the pump housing and carrying an anti-friction roller 44 for engagement with a cam surface on the camshaft 12.
  • a cam follower comprising an apron portion 42 slidable in a suitable bore formed in the pump housing and carrying an anti-friction roller 44 for engagement with a cam surface on the camshaft 12.
  • the timing of injection is determined by the fixed position of the port 46 and injection begins shortly after closing of the port at the head end of the plunger.
  • Volume of fuel delivered per plunger stroke is, however, controlled by a spill port extending transversely through the plunger as indicated in dotted lines at 48 and communicating with a longitudinal passage 49 which extends through the head end of the plunger.
  • a collar 50 surrounds the plunger and closes the spill port 48 during the effective stroke.
  • pressure at the head end of the plunger is vented into the housing and the check valve 36 closes. This concludes the delivery of fuel to the combustion chamber and determines the volume delivered per stroke so that adjustment of the collar longitudinally of the plunger determines the volume of fuel delivered per stroke.
  • a rectilinearly movable engine governor element is illustrated at 54 in FIGS. 1 and 2 and this element is extended and retracted from a governor mechanism generally shown at 57 in FIG. 1, the construction and operation of which is fully disclosed in the co- .pending application of Maxwell, Miller and Parks hereinabove referred to.
  • the governor member 54 moves downwardly in response to demands for additional fuel and in doing so swings downwardly a pair of levers 56, best shown in the detail of FIG. 3, which have pins 58 engaged in a groove 59 of the member 54.
  • These levers are secured to a pair of shafts 60, one of which is also shown in FIG.
  • each link has a ball like end 63 eccentrically positioned with respect to the axis of the link as is most readily apparent in FIG. 4, so that adjustment of the link by rotation thereof varies the position of the end 63 in a direction lengthwise of the plunger.
  • the ends 63 of the links are received in notches 64 of the collars so that oscillation of the pins with their supporting shafts 60 slides the collars longitudinally of the plungers and varies the time at which the spill ports 48 are opened.
  • FIG. 2 a partial partition shown at 68 (see also FIG. 1) formed by governor housing elements is partially broken away to show the full relationship of one of the levers 56 with the shaft 60 and links 62.
  • the adjustment of the links 62 enables the attainment of equal volume delivery by each of the several pump plungers.
  • the effective position of the end 63 is adjusted to slightly vary the time of opening the spill port and the volume of delivery, and each link may be fixed in its adjusted position by tightening of a nut 67. Access to the links for adjustment is easily attained by removal of a single cover plate 70 on the housing 10.
  • a multi-plunger engine fuel pump of the kind having a spill port in each plunger closed and opened during plunger strokes by a relatively stationary collar surrounding the plunger and having linkage means operable by a governor or the like for adjusting the collars simultaneously on a plurality of aligned plungers to vary the volume of fuel delivered per plunger stroke
  • said improvement which comprises means included in said linkage means for effecting independent adjustment of each plunger to insure equal volume delivery of all plungers during simultaneous adjustment, said linkage means including a shaft supported for rocking movement, a link between the shaft and each collar, said link extending radially of the shaft and engaging the collar whereby rocking of the shaft slides the collars on the plungers, each link being rotatable and having connection with its collar at a point eccentric to its axis of rotation, and means to rotate the link and lock it in an adjusted position to determine the position of the collar with respect to the plunger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
US621165A 1967-03-07 1967-03-07 Multi-plunger engine fuel oil pump Expired - Lifetime US3385221A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US621165A US3385221A (en) 1967-03-07 1967-03-07 Multi-plunger engine fuel oil pump
GB9401/68A GB1213194A (en) 1967-03-07 1968-02-27 Multi-plunger engine fuel oil injection pump
FR1555333D FR1555333A (is") 1967-03-07 1968-03-05
JP43013859A JPS4827331B1 (is") 1967-03-07 1968-03-05
DE19681601983 DE1601983A1 (de) 1967-03-07 1968-03-06 Kraftstoffpumpenanordnung
BE711842D BE711842A (is") 1967-03-07 1968-03-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US621165A US3385221A (en) 1967-03-07 1967-03-07 Multi-plunger engine fuel oil pump

Publications (1)

Publication Number Publication Date
US3385221A true US3385221A (en) 1968-05-28

Family

ID=24489009

Family Applications (1)

Application Number Title Priority Date Filing Date
US621165A Expired - Lifetime US3385221A (en) 1967-03-07 1967-03-07 Multi-plunger engine fuel oil pump

Country Status (6)

Country Link
US (1) US3385221A (is")
JP (1) JPS4827331B1 (is")
BE (1) BE711842A (is")
DE (1) DE1601983A1 (is")
FR (1) FR1555333A (is")
GB (1) GB1213194A (is")

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578881A (en) * 1968-02-01 1971-05-18 Cav Ltd Liquid fuel pumping apparatus for supplying fuel to an internal combustion engine
US3815563A (en) * 1971-11-24 1974-06-11 E Stinsa Fuel injection system for multiple cylinder internal combustion engine
US4069799A (en) * 1974-06-20 1978-01-24 Warszawskie Zaklady Mechaniczne "Deltawzm" Injection pump
US4211520A (en) * 1978-01-20 1980-07-08 Caterpillar Tractor Co. Timing control for sleeve metering fuel system
US4661051A (en) * 1984-11-16 1987-04-28 Diesel Kiki Co., Ltd. Fuel injection pump with adjustable timing
US4706626A (en) * 1984-10-01 1987-11-17 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
EP0313865A1 (de) * 1987-10-24 1989-05-03 Robert Bosch Gmbh Kraftstoffeinspritzpumpe für Brennkraftmaschinen
US4842497A (en) * 1986-03-22 1989-06-27 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US4850823A (en) * 1986-03-24 1989-07-25 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
FR2726606A1 (fr) * 1994-11-07 1996-05-10 Chatelain Michel Francois Cons Pompe a pistons
IT201900021945A1 (it) * 2019-11-22 2021-05-22 Bosch Gmbh Robert Gruppo di pompaggio per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3527215A1 (de) * 1985-07-30 1987-02-12 Robert Welle Vertikal gesteuerte kraftstoffbeimessung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877803A (en) * 1931-02-26 1932-09-20 Amal Ltd Fuel injection pump for internal combustion engines
US2520856A (en) * 1947-02-10 1950-08-29 Fairbanks Morse & Co Fuel pump control means
US2779289A (en) * 1952-05-06 1957-01-29 Bosch Arma Corp Fuel injection apparatus for v type engines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1877803A (en) * 1931-02-26 1932-09-20 Amal Ltd Fuel injection pump for internal combustion engines
US2520856A (en) * 1947-02-10 1950-08-29 Fairbanks Morse & Co Fuel pump control means
US2779289A (en) * 1952-05-06 1957-01-29 Bosch Arma Corp Fuel injection apparatus for v type engines

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578881A (en) * 1968-02-01 1971-05-18 Cav Ltd Liquid fuel pumping apparatus for supplying fuel to an internal combustion engine
US3815563A (en) * 1971-11-24 1974-06-11 E Stinsa Fuel injection system for multiple cylinder internal combustion engine
US4069799A (en) * 1974-06-20 1978-01-24 Warszawskie Zaklady Mechaniczne "Deltawzm" Injection pump
US4211520A (en) * 1978-01-20 1980-07-08 Caterpillar Tractor Co. Timing control for sleeve metering fuel system
US4706626A (en) * 1984-10-01 1987-11-17 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US4661051A (en) * 1984-11-16 1987-04-28 Diesel Kiki Co., Ltd. Fuel injection pump with adjustable timing
US4842497A (en) * 1986-03-22 1989-06-27 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US4850823A (en) * 1986-03-24 1989-07-25 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
EP0313865A1 (de) * 1987-10-24 1989-05-03 Robert Bosch Gmbh Kraftstoffeinspritzpumpe für Brennkraftmaschinen
US4913633A (en) * 1987-10-24 1990-04-03 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
FR2726606A1 (fr) * 1994-11-07 1996-05-10 Chatelain Michel Francois Cons Pompe a pistons
WO1996014496A1 (fr) * 1994-11-07 1996-05-17 Michel Chatelain Pompe a pistons
US6109894A (en) * 1994-11-07 2000-08-29 Chatelain; Michel Dual piston pump device for feeding two independent liquids
IT201900021945A1 (it) * 2019-11-22 2021-05-22 Bosch Gmbh Robert Gruppo di pompaggio per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna

Also Published As

Publication number Publication date
JPS4827331B1 (is") 1973-08-21
DE1601983A1 (de) 1971-01-14
GB1213194A (en) 1970-11-18
FR1555333A (is") 1969-01-24
BE711842A (is") 1968-07-15

Similar Documents

Publication Publication Date Title
US3385221A (en) Multi-plunger engine fuel oil pump
US3742926A (en) Delivery valves
US4471740A (en) Premetered pump injector having constant injection pressure, and derivative system
US2114565A (en) Fuel injection pump
US2697007A (en) Fuel injection device for internalcombustion engines
US2458294A (en) Oil distributing system
US3547092A (en) Liquid fuel pumping apparatus
US4907555A (en) Fuel injection device for a diesel engine
GB1470506A (en) Fuel injection pumping apparatus
US2052737A (en) Fuel feed mechanism for internal combustion engines
US4550702A (en) Spill control system for distributor pump
US2251783A (en) Fuel pump for engines
US2424943A (en) Fuel pump
US1816157A (en) Injector
US4211520A (en) Timing control for sleeve metering fuel system
US4537352A (en) Fuel injection apparatus
US3427979A (en) Liquid fuel pumping apparatus for supplying fuel to internal combustion engines
US2759422A (en) Fuel injection apparatus
US3500749A (en) Liquid fuel pumping apparatus
US2831473A (en) Fuel injection pump
US2729167A (en) Fuel injection pump
US2949904A (en) Fuel injection pump
US2440194A (en) Fuel pump
US3320893A (en) Regulated injection pump
US2053027A (en) Pump