US1778158A - Fuel pump for internal-combustion engines - Google Patents

Fuel pump for internal-combustion engines Download PDF

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Publication number
US1778158A
US1778158A US427932A US42793230A US1778158A US 1778158 A US1778158 A US 1778158A US 427932 A US427932 A US 427932A US 42793230 A US42793230 A US 42793230A US 1778158 A US1778158 A US 1778158A
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United States
Prior art keywords
piston
collar
internal
combustion engines
fuel pump
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Expired - Lifetime
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US427932A
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L Orange Prosper
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Individual
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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
    • 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
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • 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
    • F02M2700/1317—Fuel pumpo for internal combustion engines
    • F02M2700/1388—Fuel pump with control of the piston relative to a fixed cylinder

Definitions

  • the object of the present .invention is to produce a device whereby'the rotary adjustment of a piston of this kind can be effected without subjecting the piston to any lateral pressure
  • the invention consists in surrounding the piston by a rotatably supported collar whereby the rotary adjustment of the piston is carried out, the motion being transmitted to the piston through the medium of a slide on the piston longitudinally and in one diametral direction while it is diametrically displaceable relative to the collar in a direction at right angles to that in which it is diametrally displacealole relative to the piston.
  • This arrangement permits a universal diametral displacement of the piston relative to the actuating collar which effectively obviates any lateral pressure on the piston.
  • Fig. 1 of the accompanying drawings represents a longitudinal section of one form of the device
  • Fig. 2 is a cross-section of the same
  • Fig. 3 is a longitudinal sectio'nlof a modified arrangement
  • Fig. 4 is a cross-section of the latter
  • Fig. 5 is a longitudinal section of a further modification
  • y Fig. 6 is a cross-section of Fig. 5.
  • the piston a is rotatably adjusted by means of an integral or divided collar 6 which, in the arrangement shown in Figs. 1 and 2, is rotatably supported in a sleeve d concentric #;-with the piston.
  • a controlling member a is mounted on a prismatic portion of the piston ,fso' ajs-to be adjustable on the latter longitudi- '11 in the direction of the arrow y and d1 metrally' in the direction of the arrow 2.
  • Tlre' cont'rolling member is provided with di' so-"ametrically opposite lugs 9 whereby it encontrolling member which is arranged to.
  • the controlling member is diametrally adjustable relative to the collar in thedirection an, i. e., at right angles to the direction. 2.. ⁇ Vhile the piston is thus rotatably coupled to the actuating collar it is otherwise quite independent of the same and it will i not, therefore, be, exposed to any lateral engage in notches in the surrounding rim of a the collar.
  • the elements are capable of the same relative movements as previously described.
  • the actuating collar 7 is again rotatably supported within the sleeve cl and provided with gear teeth for engagement with an operating rack h.
  • the controlling member 0 has a rectangular shape and fits a rectangular slotpled to the piston a bymeans of a cross-pin 1). Piston and controlling member are axially adjustable relative to the collar 7; and also diametrally' in a direction at right anglesto the pin 4). The controlling member 1s diametrally adjustable relative to the piston 1n the axial direction of the pin 1).
  • a fuel pump of the character described for internal-combustion engines the combination with'. a rotatably adjustable pump piston, of a rotatably supported actuating collar concentric with and embracing said piston, a controlling member arranged to slide on the piston in longitudinal and in one diametral direction, said controlling member being in operative engagement with the collar and capable of diametral displacel in the actuating collar.
  • the member a is coument relative to the latter in a direction "at i right angles to the direction in which it is diametrally displaceable relative to the piston, and means for turning the collar and the piston.
  • controlling member has the form of a disc and is provided with lugs whereby it engages and co-acts with the collar.

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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)

Description

Oct. 14, 1930. P. L. ORANGE 1,773,158
FUEL PUMP FOR INTERNAL COMBUSTION ENGINES Filed Feb. 12. 1950 INVENTOR.
Patentedv .Oct. 14, 1930 UNITED? STATES PATENT OFFICE- rnosrnn LORANGE, or's'rurrennr, GERMANY FUEL PUMP FOR INTEBNAL GQMBUSTION ENGINES Application filed February 12, 1930, Serial No. 427,932, and in Germany February 6, 1929.
In internal-combustion engines fed with fuel from a pump, the feed is often regulated by a rotary displacement of the pump piston. It is essential that this rotary adjustment should be efifected without applying'lat- .eraL pressure to the piston since the latter,
which has to be carefully ground into its seat, would be subjected by such pressure to adetrimental wear.
The object of the present .invention is to produce a device whereby'the rotary adjustment of a piston of this kind can be effected without subjecting the piston to any lateral pressure, and the invention consists in surrounding the piston by a rotatably supported collar whereby the rotary adjustment of the piston is carried out, the motion being transmitted to the piston through the medium of a slide on the piston longitudinally and in one diametral direction while it is diametrically displaceable relative to the collar in a direction at right angles to that in which it is diametrally displacealole relative to the piston. This arrangement permits a universal diametral displacement of the piston relative to the actuating collar which effectively obviates any lateral pressure on the piston. Fig. 1 of the accompanying drawings represents a longitudinal section of one form of the device,
Fig. 2 is a cross-section of the same, Fig. 3 is a longitudinal sectio'nlof a modified arrangement,
Fig. 4 is a cross-section of the latter, Fig. 5is a longitudinal section of a further modification, and y Fig. 6 is a cross-section of Fig. 5. rThe piston a is rotatably adjusted by means of an integral or divided collar 6 which, in the arrangement shown in Figs. 1 and 2, is rotatably supported in a sleeve d concentric #;-with the piston. ,A controlling member a is mounted on a prismatic portion of the piston ,fso' ajs-to be adjustable on the latter longitudi- '11 in the direction of the arrow y and d1 metrally' in the direction of the arrow 2.
. 1 Tlre' cont'rolling member is provided with di' so-"ametrically opposite lugs 9 whereby it encontrolling member which is arranged to.
gages in recesses in the collar 9 so as to be compelled to participate in the rotation of the latter. The controlling member is diametrally adjustable relative to the collar in thedirection an, i. e., at right angles to the direction. 2.. \Vhile the piston is thus rotatably coupled to the actuating collar it is otherwise quite independent of the same and it will i not, therefore, be, exposed to any lateral engage in notches in the surrounding rim of a the collar. The elements are capable of the same relative movements as previously described.
In the arrangement of Fig'sf5 and 6 the actuating collar 7) is again rotatably supported within the sleeve cl and provided with gear teeth for engagement with an operating rack h. The controlling member 0 has a rectangular shape and fits a rectangular slotpled to the piston a bymeans of a cross-pin 1). Piston and controlling member are axially adjustable relative to the collar 7; and also diametrally' in a direction at right anglesto the pin 4). The controlling member 1s diametrally adjustable relative to the piston 1n the axial direction of the pin 1).
I claim 1. In a fuel pump of the character described for internal-combustion engines, the combination with'. a rotatably adjustable pump piston, of a rotatably supported actuating collar concentric with and embracing said piston, a controlling member arranged to slide on the piston in longitudinal and in one diametral direction, said controlling member being in operative engagement with the collar and capable of diametral displacel in the actuating collar. The member a is coument relative to the latter in a direction "at i right angles to the direction in which it is diametrally displaceable relative to the piston, and means for turning the collar and the piston. V
2. A structure as claimed in claim 1 wherein the controlling member has the form of a disc and is provided with lugs whereby it engages and co-acts with the collar.
3. A structure as claimed in claim 1 wherein the piston has a prismatic portion whereby it inter-engages with the controllingmember.
E'ROSPER LORANGE.
US427932A 1929-02-06 1930-02-12 Fuel pump for internal-combustion engines Expired - Lifetime US1778158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1778158X 1929-02-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972655A (en) * 1973-08-16 1976-08-03 Nissan Motor Co., Ltd. Pump plunger rotating device for plunger-type fuel injection
US4531496A (en) * 1981-07-10 1985-07-30 Lucas Industries Fuel injection pumps
US4793316A (en) * 1985-12-13 1988-12-27 Daimler-Benz Aktiengesellschaft Fuel injection pump for internal combustion engines
US20140196603A1 (en) * 2011-07-29 2014-07-17 Caterpillar Motoren Gmbh & Co. Kg Ceramic plunger with at least one control element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972655A (en) * 1973-08-16 1976-08-03 Nissan Motor Co., Ltd. Pump plunger rotating device for plunger-type fuel injection
US4531496A (en) * 1981-07-10 1985-07-30 Lucas Industries Fuel injection pumps
US4793316A (en) * 1985-12-13 1988-12-27 Daimler-Benz Aktiengesellschaft Fuel injection pump for internal combustion engines
US20140196603A1 (en) * 2011-07-29 2014-07-17 Caterpillar Motoren Gmbh & Co. Kg Ceramic plunger with at least one control element

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