DE850364C - Differential piston for fuel injection pumps - Google Patents

Differential piston for fuel injection pumps

Info

Publication number
DE850364C
DE850364C DEW3701A DEW0003701A DE850364C DE 850364 C DE850364 C DE 850364C DE W3701 A DEW3701 A DE W3701A DE W0003701 A DEW0003701 A DE W0003701A DE 850364 C DE850364 C DE 850364C
Authority
DE
Germany
Prior art keywords
fuel injection
injection pumps
differential piston
parts
piston
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
Application number
DEW3701A
Other languages
German (de)
Inventor
Wilhelm Wels
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEW3701A priority Critical patent/DE850364C/en
Application granted granted Critical
Publication of DE850364C publication Critical patent/DE850364C/en
Expired legal-status Critical Current

Links

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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
    • 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
    • F02M59/18—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps characterised by the pumping action being achieved through release of pre-compressed springs
    • 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
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • 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
    • F02M2700/1358—Fuel pump with control of fuel inlet to the pumping chamber

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

Brennstoffeinspritzpumpen mit Differentialkolben, bei denen der Kolben aus getrenntem Speicher-und Pumpenkolben besteht, die durch eine Feder zusammenhalten, aber die Möglichkeit haben, sich während .des Arbeitsganges voneinander zu entfernen, sind bekannt.Fuel injection pumps with differential pistons in which the piston consists of separate accumulator and pump pistons, which are held together by a spring, but have the opportunity to move away from each other during the process, are known.

Die nachstehend beschriebene Erfindung hat einen in seiner Wirkungsweise einteiligen Differentialkolben zum Gegenstand, der zum Zweck der leichteren Herstellung zweiteilig ausgeführt wird, aber dessen Teile beim Arbeitsgang stets zusammenbleiben. Durch die Zweiteilung wird erreicht, daß die beiden im Durchmesser unterschiedlichen Kolbenhälften getrennt in die Pumpenzylinder eingelläppt und die für die Steuerung der Einspritzmenge notwendige Schrägkante in einfachster Weise hergestellt werden können.The invention described below has one in its operation one-piece differential piston for the purpose of easier manufacture is carried out in two parts, but the parts always stay together during the operation. By dividing it into two parts it is achieved that the two have different diameters Piston halves lapped separately in the pump cylinder and those for the control the inclined edge required for the injection quantity can be produced in the simplest possible manner can.

Wie aus der Zeichnung ersichtlich, arbeitet in dem Zylinder mit differenzierter Bohrung- r der Differentialkolben, der aus den Teilen z ,und 3 besteht. Durch Antriebshebel ro und Feder 5 werden beide Teile zusammengehalten und bilden also stets ein Ganzes.As can be seen from the drawing, works in the cylinder with differentiated Bore- r of the differential piston, which consists of parts z, and 3. By drive lever ro and spring 5, both parts are held together and thus always form a whole.

Claims (1)

PATENTANSPRUCH: Differentialkolben für Brennstoff einspritzpumpen, dadurch gekennzeichnet, daB derselbe in seiner Wirkungsweise als einteiliger Kolben arbeitet, jedoch aus zwei Teilen (2 und 3) zusammengesetzt ist, so daß seine Teile getrennt in die Zylinderbohrungen eingeläppt und die Steuerkante leicht schräg angefräst werden können. Angezogene Druckschriften: Deutsche Patentschriften Nr.489 5o5, 615205, 653 272, 725 137- PATENT CLAIM: Differential piston for fuel injection pumps, characterized in that it works as a one-piece piston, but is composed of two parts (2 and 3) so that its parts are lapped separately into the cylinder bores and the control edge can be milled at a slight angle. Attached publications: German patent specifications 489 505, 615205, 653 272, 725 1 37-
DEW3701A 1950-09-23 1950-09-23 Differential piston for fuel injection pumps Expired DE850364C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW3701A DE850364C (en) 1950-09-23 1950-09-23 Differential piston for fuel injection pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW3701A DE850364C (en) 1950-09-23 1950-09-23 Differential piston for fuel injection pumps

Publications (1)

Publication Number Publication Date
DE850364C true DE850364C (en) 1952-09-25

Family

ID=7592076

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW3701A Expired DE850364C (en) 1950-09-23 1950-09-23 Differential piston for fuel injection pumps

Country Status (1)

Country Link
DE (1) DE850364C (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE489505C (en) * 1926-09-17 1930-01-21 Albert Alexandre Augustin Darc Piston pumps, especially fuel injection pumps for internal combustion engines
DE615205C (en) * 1932-10-28 1935-06-29 Konrad Dittmar Dipl Ing Fuel injection pump
DE653272C (en) * 1930-02-07 1937-11-22 Elek Zitaets Maschinen Waggon Drive device for fuel injection pumps
DE725137C (en) * 1937-01-16 1942-09-15 Alwin Duesterloh Dipl Ing Injection pump, especially gasoline injection pump for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE489505C (en) * 1926-09-17 1930-01-21 Albert Alexandre Augustin Darc Piston pumps, especially fuel injection pumps for internal combustion engines
DE653272C (en) * 1930-02-07 1937-11-22 Elek Zitaets Maschinen Waggon Drive device for fuel injection pumps
DE615205C (en) * 1932-10-28 1935-06-29 Konrad Dittmar Dipl Ing Fuel injection pump
DE725137C (en) * 1937-01-16 1942-09-15 Alwin Duesterloh Dipl Ing Injection pump, especially gasoline injection pump for internal combustion engines

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