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DE725447C - Equal pressure accumulator for fuel injection devices - Google Patents

Equal pressure accumulator for fuel injection devices

Info

Publication number
DE725447C
DE725447C DEE53866D DEE0053866D DE725447C DE 725447 C DE725447 C DE 725447C DE E53866 D DEE53866 D DE E53866D DE E0053866 D DEE0053866 D DE E0053866D DE 725447 C DE725447 C DE 725447C
Authority
DE
Germany
Prior art keywords
pressure accumulator
equal pressure
injection devices
fuel injection
fuel
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
DEE53866D
Other languages
German (de)
Inventor
Wilhelm Eberhardt
Hans Polland
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.)
HANS POLLAND
Original Assignee
HANS POLLAND
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 HANS POLLAND filed Critical HANS POLLAND
Priority to DEE53866D priority Critical patent/DE725447C/en
Application granted granted Critical
Publication of DE725447C publication Critical patent/DE725447C/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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • 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
    • F02M2700/07—Nozzles and injectors with controllable fuel supply

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

GIeichdruckspeicher für Brennstoff-Einspritzeinrichtungen Die Erfindung bezieht sichaufeinen Gleichdruckspeicher bei Einspritzeinrichtungen für Verbrennungskraftmaschinen, in welchem der durch eine einzige Brennstofförderpumpe geförderte Brennstoff gesammelt wird, bevor er über einen Verteiler (Steuerorgan) dem Zylinder oder den Zylindern der Brennkraftmaschine zugeführt wird. Die Erfindung bezweckt, den in dem Speicher befindlichen Brennstoff von den durch die Brennstofförderpumpe herrührenden Stößen (Drucl>sch.`vankungen) frei zu machen, so daß er möglichst ohne Druckschwankungen, also unter gleichmäßiger Spannung, den Einspritzdüsen über den Verteiler (Steuerorgan) zugeführt werden kann. Dies wird gemäß der Erfindung dadurch erreicht, daß der Speicher in eine Mehrzahl von Kammern unterteilt ist, die, nur durch Übergangsrohre miteinander verbunden, gegen Druckrückwirkungen durch Rückschlagventile und gegen Überdruck durch ein überdruckventil gesichert sind. In der Abbildung ist die Erfindung beispielsweise dargestellt.Equal pressure accumulator for fuel injection devices The invention refers to a constant pressure accumulator in injection devices for internal combustion engines, in which the fuel conveyed by a single fuel feed pump is collected is before it reaches the cylinder or cylinders via a distributor (control element) the internal combustion engine is supplied. The invention aims in the memory the fuel from the shocks caused by the fuel feed pump (Pressure fluctuations) free, so that it is possible without pressure fluctuations, so under constant tension, the injection nozzles via the distributor (control unit) can be fed. This is achieved according to the invention in that the memory is subdivided into a plurality of chambers, which, only by transition pipes with each other connected, against pressure feedback through check valves and against overpressure are secured by a pressure relief valve. In the figure, the invention is an example shown.

Eine Brennstofförderpumpe fördert den Brennstoff in den Gleichdruckspeicher 2, 3, 4. Dieser besteht aus mehreren Kammern 2, 3 bzw. 4. Der Brennstoff gelangt über Rückschl.agventile 15 über die Kammern 2 und 3 nach der Kammer 4. Wegen der Pufferwirkung der Kammern 2 und 3 und der Verhinderung des Zurückfederns des Brennstoffes durch die Rückschlagventile 15 sind in dem Raum 4 die von der Pumpe i verursachten Druckschwankungen weitgehend vermieden, so daß in der Endkammer ¢ der Brennstoff praktisch stets gleichen Druck aufweist. Von der Endkammer 4 führt je eine Druckleitung 7 zum Steuerorgan 8 und eine solche als Cberdruckleitung 6 mit Überdruckventil 5 zum Brennstoffbehälter 13. Die Verbindung der Kammern 2, 3, 4 in räumlich und körperlich voneinander getrennter, also ebenfalls gegen die Fortpflanzung von Stößen geschützter Anordnung werden, wie gesagt, gegen Druckrückwirkungen durch bekannte, federlose Rückschlagventile 15 gesichert. Vom Steuerorgan 8 führen je nach der Anzahl der Verb.rennungsräume 1 4 Leitungen 9 zu den Einspritzdüsen io bekannter Bauart und Wirkungsweise und Leitungen i i gleicher Anzahl als Druckentlastungsleitungen zum Brennstoffbehälter 13. Von den Einspritzdüsen io führen notwendige, der Abführung von Lecköl bzw. Tropföl dienende Rückflußleitungen 12 ebenfalls zum Brennstoffbehälter 13.A fuel feed pump conveys the fuel into the constant pressure accumulator 2, 3, 4. This consists of several chambers 2, 3 and 4. The fuel arrives Via check valves 15 via chambers 2 and 3 to chamber 4. Because of the Buffer effect of chambers 2 and 3 and the prevention of the fuel springing back through the check valves 15 are those caused by the pump i in the space 4 Pressure fluctuations largely avoided, so that in the end chamber ¢ the fuel has practically always the same pressure. A pressure line each leads from the end chamber 4 7 to the control element 8 and such as an overpressure line 6 with an overpressure valve 5 to the fuel tank 13. The connection of the chambers 2, 3, 4 in spatial and physical terms separated from each other, i.e. also more protected against the propagation of impacts Arrangement, as I said, against pressure feedback through well-known, springless Check valves 15 secured. From the control unit 8 lead depending on the number of Combustion chambers 1 4 lines 9 to the injection nozzles io known design and Mode of operation and lines i i same number as pressure relief lines to Fuel tank 13. From injectors io necessary, conduct a drain from leak oil or dripping oil serving return flow lines 12 also to the fuel tank 13th

Claims (1)

PATE NTAN51'RUCH: Gleichdruckspeicher für Brennstoffelnspritzeinrichtungen mit Verteiler, dadurch gekennzeichnet, daß der Gleichdruckspeicher (2, 3, 4) aus mehreren räumlich und körperlich voneinander getrennten Kammern (2. 3, 4) besteht, die durch Rückschlagventile enthaltende Cbergangsrohre miteinander verbunden sind.PATE NTAN51'RUCH: Equal pressure accumulator for fuel injection devices with distributor, characterized in that the equal pressure accumulator (2, 3, 4) from consists of several spatially and physically separate chambers (2, 3, 4), which are connected to one another by transition pipes containing non-return valves.
DEE53866D 1938-07-19 1938-07-19 Equal pressure accumulator for fuel injection devices Expired DE725447C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE53866D DE725447C (en) 1938-07-19 1938-07-19 Equal pressure accumulator for fuel injection devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE53866D DE725447C (en) 1938-07-19 1938-07-19 Equal pressure accumulator for fuel injection devices

Publications (1)

Publication Number Publication Date
DE725447C true DE725447C (en) 1942-09-22

Family

ID=7081856

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE53866D Expired DE725447C (en) 1938-07-19 1938-07-19 Equal pressure accumulator for fuel injection devices

Country Status (1)

Country Link
DE (1) DE725447C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865277A (en) * 1996-07-23 1999-02-02 Hunter; Marc Wheels and brakes for vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865277A (en) * 1996-07-23 1999-02-02 Hunter; Marc Wheels and brakes for vehicles

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