US2928352A - Injection pump - Google Patents

Injection pump Download PDF

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Publication number
US2928352A
US2928352A US729015A US72901558A US2928352A US 2928352 A US2928352 A US 2928352A US 729015 A US729015 A US 729015A US 72901558 A US72901558 A US 72901558A US 2928352 A US2928352 A US 2928352A
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Prior art keywords
pump
pump member
dead center
center position
movement
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Expired - Lifetime
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US729015A
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English (en)
Inventor
Aldinger Ulrich
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Robert Bosch GmbH
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Robert Bosch GmbH
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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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/10—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor
    • F02M41/12—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor
    • F02M41/123—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined pump pistons acting as the distributor the pistons rotating to act as the distributor characterised by means for varying fuel delivery or injection timing

Definitions

  • 'injection .pumps are used 'with internal combustion 4engines -for supplying fuel Ato the cylinders of the engine to vbe burned therein.
  • A@ne of the objects oft-he present .invention isto .overcome the above drawbacks -b-y .providing an injection pump which is capable of beingadjustedso as to :regulate the cross section -of passages through which .fuel .flows in the pump.
  • Another object of the present invent-ion is to reduce undesirable leakage losses .as well fas to .reducevthe .size of reciprocating masses, as compared to known injection pumps. l
  • the .present invention includes in an injection pump yan .elongated hollow .first pump .member ⁇ and a vvi'irst guidemea-ns guiding the .rst
  • a second hollow elongated pump member is provided with an 'interior which defines at least part of fa pumping chamber, vand this-second pump member has an open end directed toward the first pump member and communicating with the pumping chamber formed in part at least by the :interior'of the second pump member.
  • a second guide means .guides vthe second pump member for axial reciprocating movement vand positions the second pump member in the path of.
  • a 'stop 'means isf provided to limit the vmovement vof the second member by theurgin'g means 'toward the first pump 'meniberto an end position where the second pump fmem- Lber is spaced from the Vfirstv pump'member "while the latter 'continues to move jto vand from its suction dead center position so as to provide 'between the pump members fa :gap through which fuel ows into VVand out ofthe pumping chamber.
  • FIG. l shows a partly "schematic axial sectional view of 'an injectionpuinp Constructed according to the ,present j .,.inve'ntiom -the parts being shown in Fig. l at the suction dead centerposition of the pump;
  • Fig. v2 Vfragmentarily illustrates't'ne structure of 'Fig l andshows the parts at the pressure dead center position.
  • the injection pump illustrated therein includes an'el'ongated hollow .pumpmember 3 which also functionsy as a distributor'in that 'this elongated hollow pump member 3-'is formed with an opening 33 passing through ,its wall and comlmunic'ating through passages described below ⁇ with 'the several cylinders ofk Vthe engine.
  • This elongated hollow pump .member 3 cooperates with theV second elongated hollow pump member 4 which is coaxial with the pump member-3 ⁇ and which has ahollow interior deninglpart of a pumping chamber. It will be noted that the bottom' vend of the pump member 4, as viewed in Figs., :l and-2,
  • the elongated hollow pump member 3 is connected at its bottom end, as viewed in Figs. l and'2, with a drive which both rotates and axially reciprocates lthe pum-p member 3. As is diagrammatically shown in Fig. .1, the
  • injection vpump includes a plurality of rollers 10. ⁇ which are supported for 'rotation about 'station-ary axes, respectively, and a drive shaft 5 is rotated and is .fixed with a cam 7 having downwardly directed camm-ing portions which. cooperate with 'the rollers 10 so that'during .rotation of the-drive shaft .5 the latter 'together with ⁇ the cam 7 reciprocate as well as rotate, the reciprocation resulting from lthe Vcooperationof the downwardly direc-ted annular camming surface of the cam 7 with the rollers liti.
  • the cam 7 reciprocates during each of .its revolutions anumber of times equa-l to the number of cylinders ofthe engine.
  • the elongated - ⁇ hollow pump member 3 ycarries Yat .its bottom end across pin 6 which extends transversely 'through and beyond the pumpl member 3, and the 'free ends 'of the cross pin 6 which are respectively Alocated laterally beyond the exterior surface of the hollow pump
  • the ⁇ injection pump includes a support or housing 1,
  • a plug 14 is pressed into the bottom end of the elon gated hollow pump member 3, as viewed in Figs. 1 and 2, and this plug 14 is formed with a transverse Vbore through which the pin 6 passes.
  • the plug 14 fixedly carries at its top surface a rod 18 which extends axially along theinterior of the hollow pump member 3,Y and a coil spring is coiled Yabout this rod and bears with its bottomend against the plug member 1 ⁇ 4. ⁇ At its.” top end the spring 15 bears against a valve member 16 which is pressed by the spring 15 into engagement VwithY a valve seat formed by an annular shoulder in the interior of,v
  • the elongated hollow pump member,3,.this valve member 16 being formed with a plurality of. radial elongated fins fabove the portion of the'valvef member which engages Vthe valve seat, so that when the valve member 16 is located in the pump member 3 at a position below the valve seat of the pump member 3 the fuel may flow past the valve member 16 axially .along the interior of thev pump member 3.
  • 'Ihe rod 18 limits the extent of opening movement of the valve member 16, and when the latter valve memberis in a valve opening position p the fuel may flow to the opening 33 of the pump member 3, and from this opening 33 the fuelis distributed' ⁇ to the several cylinders.
  • the elongated hollow ⁇ pump member 3 is formed with a plurality of openings 24 which lpass through the wall of the pump member 3 and which communicate at their outer ends with pumping chamber 31 and forming an urging means for urging the pumping member 4 toward the pump member 3.
  • the bottom end of the spring 27 bears against an inner annular shoulder of the pumping member 4 for urging the latter downwardlytoward the pump member 3.
  • the guide member 25 is guided itself in the interior of the housing 1 by an inner cylindrical surface thereof located next to the plug 30, andthe spring 27 maintains Y the top wall of the guide ⁇ member 25 ⁇ in engagement with the bottom surface of the plug 30, as viewedin Fig. l. v
  • an adjustable stop means is provided for limiting the movement of the pumprnember V4 toward the purnpmember 3, both of these pumpmembers being coaxial.
  • This stop means includes an elongated hollow sleeve' 87 having at its bottom end an inwardly directed annular flange 89 which is engaged by an outwardly directed annular flange 90 of the pump Ymember 4 so as to limit the movement of the' pump member 4 by the spring 27 to an end position of the pump-member 4which is illustrated in Fig. 1.
  • Therange 89 is formed with an upwardly directed frusto conical surface'engaged by a downwardly directed frustoconical surface'of the flange 90, and these frustoconical surfaces mate with each other and form a'uid-tight engagement between" the pump member 4 and the stop member 87. j Y
  • the pump member 4 is formed with a second an annular groove 29 formed in the exteriorsurface of t the pump member 3.
  • a suitable guide means is provided for guiding the pump member 3 for axial Yreciprocating movement, and this guide means includesran elongated hollow cylindrical member 72 having Van interior surface which isdirected toward ⁇ an exterior surface of the pump member3 ⁇ . ⁇ "1 ⁇ he exterior surface of the pump member 3 is slidable along the interior surface of the cylindrical guide member 72.
  • This 'guide member 72 is formed with a plurality of openings 73 corresponding to the number of cylinders and distributed about the axis of the cylindrical guide member 72, so that during the rotary and reciprocating movement of the member 3 the opening 33 ⁇ thereof successively communicates with the several openings 73 so as to deliver fuel thereto.
  • openings 73 respectively communicate with passages '74 which respectively lead to the several cylinders, so that in this way the fuel ⁇ is ⁇ delivered by the injection pump to the several cylinders,
  • One of the passages 74 is illustrated in Figl'.' ⁇ p.
  • the cylindrical guide member 72 is furthermore formed with a plurality ofoverllow openings 75which cooperate with the annular groove 29of the pump member 3.
  • the cylindrical guide ,member 72 is carried'by the support 1 and has an exterior surface directed toward and located next to an interior surface of the support 1, and one of these surfaces is formed with a plurality of passages 77 which respectively communicate with the over- ⁇ ilow openings 75.
  • the exterior surface of the cylindrical guide member 72 is formed with the axial grooves 77 which respectively ⁇ extend downwardly from the over-- flow opening 75' into the low pressure chamber of the injection pump which houses the spring 8.
  • This low pressure chamber ofthe injection pump which houses the spring 8 as well as the cam drivemcomr'nunicates throughy a conduit 78 Vwith the supply tankA 35 from l vis directed toward'the pump member 3 cooperates with a frustoconical annular surface 92 which is separated from the flange.90 by an annular cutout 91 ⁇ formed at the exterior of the' pump member 4, and this frustoconical surface 92 at the open end of the pump member 4 which frustoconical surface 93 located at the top end "efV the elongated hollow pump member 3, and the frustoconical surface of flange 90 ⁇ as well as the frustoconical surface j 92 of the pump member 4 form part of the same cone.
  • the surfaces 92 and 93 ⁇ also have a fluid-tight engagementwitheach other, so that the cooperation of the flange 90 with theflange 89 ⁇ serves to separate the inlet pump chamber ⁇ 95'from-the space 94 dened between 'the stop member 87 and the pump member 4, while the Veooperationrof the ⁇ surfaces 92 and 93 with each other serves to ,separate ⁇ the pump chamber 31 from the inlet chamber ⁇ 95 ⁇ and the space 94.
  • V which fuel is pumped to the injection pump by a supply t, t
  • Thesecond elongated hollow Apump member 4 is also .guided by a suitable guide meansjfor axial reciprocating movemennand .
  • this guide means includes an elongated sleeve 25. which has located in its interior an end lplate 26 which cooperates with the upper end of a spring'27 lafeslinfthe iuteriligf the .member 4. which .denes the 'the rod 100 for turning movement about its axis.
  • the limiting of the movement of the pump member 4 by the stop member 87 to the end position of the pump member 4 ⁇ shown in Fig. 1 provides at the suction ⁇ dead center position of the pump member 3, which is illustrated in Figi l, a gap between the pump members 3 and 4, and the fuel under pressure in the inlet vchamber of the pump can flow from this inlet chamber 95 through the gap ⁇ between pump members 3 and 4 intothe pumping chamber 31 through the open end of the pum-p member 4 which vis directed toward the pump member 3.
  • an'adjusting means cooperates with the stop means provided by the ⁇ sleeve 87 for adjusting the position of the latter along ⁇ the axis of the pump member 3, so that this way the size of the gap between the pump members 3 and 4 ⁇ at the suction dead 'center position of the pump member ⁇ 3 may 'be regulated.
  • This adjusting means includes a pin/98 which extends into an opening of the sleeve 87, and this pin 98 is fixed eccentrically to the left endl of a rod 100 provided inter'- mediate ⁇ its ends with a'collar 101 fixed to the rod 100 the mannershown in Fig.fl,.this sleeveA 102 supporting 99 is fixed to the outer end of the rod A1.00, so that by turning the lever 99 the eccentric pin 98 will turn to regulate the elevation of the stop member 87.
  • This stop mem- -ben is capable of ⁇ turning about its axis during turn t A lever x arguement-a artis.
  • the pump member f4 willbeiengaged lbytthe stop member S7 to prevent continued -'movement of the pump member 4 with the pump'meinber 3 while ⁇ the iatter continues to moveto and fromithesuctiondead center position thereof shown in Fig. '1.
  • the pump 36 draws the fuel from the tank .35, and this pump 36 pumps the fuel under pressure through a filter 37 to a supply conduit 43 which supplies the fuel to the injection pump,the excess fuel ilowing through an overow valve 39 from the filter 37 'bac'kto the tank 35.
  • the conduit 43 delivers the fuel to a passage 1&9 of the injection pump, and this passage 1&9 communicates through a passage 110 with the inlet 'chamber 95 referred to above.
  • the cross section of the passage 110 may be regulated by an axially movable pin 112 which is guided Vfor axial movement by suitable bores or" the'housing V1 and which extends across the interior of the passage 11 ln the passage 11d the pin 112.
  • the throttle member 112 separates the passages 109 and 110 from'geach other, and the throttle member 112 isA guided in the axial bore 113 kof the housing-1, this bore 113 being closed at its top end, as viewed 'in Fig. l, by a plug 114 which cooperates with a sealing lring 115. At its bottom end, as viewed in Fig.
  • the throttling rod 112 is connected in a known Way with ⁇ a governor which may be'adjusted by the operator at will so las to regulate the position ofthe'rod 112.
  • the space9t lbetween the pump .member 4 and thestop member v3'7 communicates through a passage'117 ⁇ with the passage 169 to which the :fuel is delivered from the conduit 43.
  • this-.itirn'ethe .ffuel can flow from the interior of the pumpfm'ember 33-.througl1'th'e overliow opening 75 and -along the g'rooves'7-7 to ⁇ thejlow pressure chamber which ⁇ "communieates through 'the conduit 78 with the tank 35, Lsofthatvvhen the groove Z9 communicates with the overiiow opening '-75-'the. ⁇ d ⁇ eliveryof ⁇ the fuel to a given cylinderso'l' theengineis'tops..
  • This passage 117 providesfor the returnflow of .thefuel at smaller resistance .thanthe passage Vwith the tnrotthng member 112.
  • the adjustment of the amounts of -fuel delivered by Y -the1pump during the operation of the engine 'according to the loading thereof is provided with the aid of the vthrottling member 112.
  • the cross .sectional larea4 of .the 'passage 109, 110 isincreased or decreased.
  • first guide means guiding said first pump member for reciprocatingfaxial'movement betweenla suction dead center position, at the end of a suction stroke of said first pump member, and a pressure dead center' position, at the 'eend of a pressure stroke of Vsaid firstpump member; a second hollowelongated pump member having a Vfirst open V'end directed toward said first 'pump member and a second Open end; second guide means'surrounding and slidingly engaging said second pump member and having aclosed end spaced from said second open end of said second hollow elongated pump member and defining a pumping chainber, said second guide means guiding said second pump member for axial reciprocating movement and positioning said second pump member in the path of movementof said first pump member from its suction dead center position to its pressure dead centerposition so that during movement of said first pump member along its pressure stroke toward its pressure dead center position it engages and moves said second pump member toward said closed end to provide for a pumping action, the first open end of the latter being
  • an elongated hollow first pump member in combination, an elongated hollow first pump member; first guide means guiding said first pump member for reciprocating axial movement between a suction dead center position, at the end of a suction stroke of said first pump member, and a pressure dead center position, at the end of ⁇ a pressure stroke of said first pump member; a second hollow elongated pumpV member having a first open end directed toward said first pump member and a 'second open end; second guide means surrounding and slidingly engaging said second pump member and having a closed end spaced from said second open end of said second hollow elongated pump member and defining a pumping chamber, said second guide means guiding said second pump member-for axial movement and positioning said second pump member coaXiallywith said first pump member in the path of movement of the latter from its suction dead center position to its pressure dead center position so that duringmovement of saidfirst pump member toward its pressure dead center position it engages and moves .said second'pump.
  • an elongated hollow first ⁇ pump member in combination, an elongated hollow first ⁇ pump member; first guide means guiding said first pump member for reciprocating axial movement betweena suction dead center position, at the end of a suction stroke of said first pump member, and a pressure Vdead ⁇ center position, at the end of a pressure stroke of said first pump member; a second hollow elongated pump member having a first open end directed 'toward said first pump member and a second open end;
  • second guide means surrounding and slidingly engaging said second pump member and having ja closed end spaced from said second open end of said second hollow elongated pump member and defining a pumping chamber, said second guide means guiding said second pumpi member for axial reciprocating movement and positioning said second pump member in thepath of movement of said frstpump member from its" suction dead center position to its pressure dead center position so that during movement of said first pump member along its pressurrevs'troke toward lits pressure dead center position it engages and moves said second pump member toward said closed end to provide for a pumping faction, the first open end of the ,latter being closed by said first pump member when the latter engages said second pump member; urging ⁇ means cooperating with said second pump member for urging the latter toward said first pump member;stop means limiting the movement of said second pump member by said urging means toward said first vpump member Vto an end position where said second pump member is ⁇ spaced from said first vpump member while the ⁇ latter continues to move toand from its
  • an elongated hollow first pump member in combination, an elongated hollow first pump member; first guide means guiding said first pump member for reciprocating axial movement between a suction dead center position, at the end of a suction stroke of said first pump member, and a pressure dead center position, at the end of a pressure stroke of said first pump member; a second hollow elongated ⁇ pump member having a first open end directed toward,V said first pump member and a second open end; second guide means surrounding and slidingly engaging said :second pump member 'and 'having a fclosed yend spaced from Isaid second open vend fof said second hollow ielongated pump member and defining a pumping chamber, said second guide means :guiding said secondY pump member for axial reciprocating movement tand positioning said second vpump member fin the path 'of vvmovement of said first pump member from its suction deadcenter position to its pressure dead center position 'so that'during movement of said first pump member along ⁇ its pressure stroke toward
  • an elongated hollow first pump member in combination, an elongated hollow first pump member; first guide means guiding said 'first pump member for reciprocatingv axial :movement be- '.twe'e'n a'suction dead center position, at lthe" end of asuetion stroke of said first pumpmembenand a pressure dead fcenter position, at the end of a ⁇ pressure stroke of 'said first pump member; a ⁇ second hollow kelongated pump :member having a first open end directed toward said 'first .pump member; a second open end; second guide 'means surrounding and 'slidingly vengaging said second ⁇ .pump member and having a closed end spaced from said second open end of said second hollow elongated pump ember and defining a pumping'chamber, said second Aguide means guiding said second pump member for axial "movement and positioning said second pump member yc'o'axially with said first pump member :in the '
  • an elongated :hollow first pump member in combination, an elongated :hollow first pump member; first guide meansv guidingsaid first pump member for reciprocating axial movement be tween a suction ⁇ dead center position, at the -end of a suction stroke of said first pump member, and a pressure :coaxially with said first pump member in the pathv of movement of the latter from its suction dead center posi ⁇ :tion to its pressure dead center position .so that during movement of said first .pump member toward its :pressure dead lcenter position it engages and Vmoves said second pump membertoward said closed vend ,to provide for :a pumping action, the first open end of vthe latter being closed by said first pump member when'the latter engages said second pump member; urging means cooperat- .ingwith said -second pumpmember for urging the latter toward said first pump member; stop means .limiting the movement of said second pump member by said urging means towardsaidefirst pump member toan end position
  • valve means communicating-withsaidipump- ,ing chamber to discharge fluid therefrom during said .pressure 'stroke of said first pumpmember'aftersaid 'gap isrclosed.
  • an elongated hollow first pump member in combination, an elongated hollow first pump member; first guide means guiding said'v i' .first pump member for reciprocating axial movement between .asuction dead center position, at ⁇ the end of :a suction stroke of said first-'pump member, and a pressure dead center position, at the end of 1a pressure stroke of said first pump member; la second hollow elongated pump member having a first open end Ydirected ⁇ toward said'first pump member and a second open end; second guide means surrounding and slidinglyv engaging said second ⁇ pump member and having a closed end spaced from said second open -end ⁇ of said second hollow elongated :pump Amember and defining a pumping chamber, -said second guide .means guiding said second pump member for axial l I5 movement and .positioning .said second 4pump member Acog' "axially with said first pump member in the path of move said first pump member when the latter-engages said
  • first guide means guiding said first pump member for: reciprocating axial movement ⁇ between aY suction dead center position,'at the end of a suction stroke of said firstpump member, and a pressure f guide means ⁇ guiding said second pump member for axial is in engagement with said second pump member, saidV first-mentioned and second annularfrustoconical surfaces of said second pump member forming part of the same cone, said second pump member being formed with an annular cutout located between and separating said first- Y mentioned and said second annular frustoconcal surfaces of said second pump member from each other; fluid inlet means communicating with said gap through 'which fluid Vmay flow into said pumping chamber when said lSecond first pump member for reciprocating axiall movement ⁇ between a suction dead center position, at the end of a suction stroke of said first pump member, and a pressure dead center position, at the end of a pressure stroke of said first pump member;
  • stop means limiting the movement of said second pump member by said urging means toward said first pump member to an end position where said second pump member isspaced from said first pump member while the latter continues to move to and ⁇ from itssuction dead center position so as to provide between ⁇ said pump members ⁇ a gap'through which fuel flows into ⁇ and out ofsaid pumping chamber, said stop means and said second pump member defining between themselves a space which 'surroundspsaid second pump memberand is located between the latter and said s top means; means ⁇ forming an inlet chamber of said injection pump to whichrfuel under pressure is supplied from a supply pump; passage means providing communicationbet'ween saidspaceand said inlet chamber; and valve means communicating vwithsaid pumping cham- -beruto ⁇ discharge fueltherefrom during said pressure stroke of said first pump member after said gap is closed.
  • a cylindrical guide member having an exterior surface and formed with a plurality ofoverflow openings passing through the wall of said cylindrical guide member; a support supporting said guide member and having an inner surfacelocated next to and directed ltoward said.
  • an elongated hollow first pump member in combination, an elongated hollow first pump member; first guide means guiding said first pump member for reciprocating axial movement between a suction dead center position, at the end of a suction stroke of said first pump member, and a pressure dead center position, at the end of a pressure stroke of said first pump member; a second hollow elongated pump member having a first open end directed toward said ttl first pump member and a second open end; second guido i i means Vsurrounding and slidingly engaging said second pump member and having a closed .end spaced froml said second open end of said second hollow elongated pump member and defining a pumping chamber, saidsecond guide means guidingV said second pump member for axial reciprocating movement and positioning said second pump member in the path of movement of said first pump member from its suction dead center position to its pressure dead center position so that during movement of said first pump member along its pressure stroke toward its pressure dead center position it engages and moves said second pump member toward said closed end to provide for

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
US729015A 1957-04-17 1958-04-16 Injection pump Expired - Lifetime US2928352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB44334A DE1076997B (de) 1957-04-17 1957-04-17 Kraftstoffeinspritzpumpe fuer mehrzylindrige Brennkraftmaschinen

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100449A (en) * 1959-02-04 1963-08-13 Borg Warner Fuel injection pump
US3101057A (en) * 1960-12-10 1963-08-20 Bosch Gmbh Robert Injection pump
US3107623A (en) * 1961-08-10 1963-10-22 Budzich Tadeusz Variable discharge pump
US3220217A (en) * 1961-12-20 1965-11-30 Mirkoz Muszaki Irodai Es Kozsz Driving mechanism for producing turning movements substantially without side forces
US3782864A (en) * 1970-12-30 1974-01-01 Cummins Engine Co Inc Fuel injector
US4714412A (en) * 1983-07-27 1987-12-22 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US5067880A (en) * 1989-05-03 1991-11-26 Kloeckner-Humboldt-Duetz Ag Fuel injection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628132A (en) * 1945-10-22 1949-08-23 Raul Pateras Pescara Improvements relating to accumulator injection systems, and especially to fuel-injection systems for internal-combustion engines
US2810376A (en) * 1954-07-29 1957-10-22 Bosch Gmbh Robert Injection pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE655171C (de) * 1938-01-10 Liselotte Elze Kolbenpumpe
US1112339A (en) * 1913-04-16 1914-09-29 Gen Electric Pump.
DE489505C (de) * 1926-09-17 1930-01-21 Albert Alexandre Augustin Darc Kolbenpumpe, insbesondere Brennstoffeinspritzpumpe fuer Brennkraftmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628132A (en) * 1945-10-22 1949-08-23 Raul Pateras Pescara Improvements relating to accumulator injection systems, and especially to fuel-injection systems for internal-combustion engines
US2810376A (en) * 1954-07-29 1957-10-22 Bosch Gmbh Robert Injection pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100449A (en) * 1959-02-04 1963-08-13 Borg Warner Fuel injection pump
US3101057A (en) * 1960-12-10 1963-08-20 Bosch Gmbh Robert Injection pump
US3107623A (en) * 1961-08-10 1963-10-22 Budzich Tadeusz Variable discharge pump
US3220217A (en) * 1961-12-20 1965-11-30 Mirkoz Muszaki Irodai Es Kozsz Driving mechanism for producing turning movements substantially without side forces
US3782864A (en) * 1970-12-30 1974-01-01 Cummins Engine Co Inc Fuel injector
US4714412A (en) * 1983-07-27 1987-12-22 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
US5067880A (en) * 1989-05-03 1991-11-26 Kloeckner-Humboldt-Duetz Ag Fuel injection device

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DE1076997B (de) 1960-03-03

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