EP1888911A1 - Outlet connection for a high-pressure pump - Google Patents

Outlet connection for a high-pressure pump

Info

Publication number
EP1888911A1
EP1888911A1 EP06725512A EP06725512A EP1888911A1 EP 1888911 A1 EP1888911 A1 EP 1888911A1 EP 06725512 A EP06725512 A EP 06725512A EP 06725512 A EP06725512 A EP 06725512A EP 1888911 A1 EP1888911 A1 EP 1888911A1
Authority
EP
European Patent Office
Prior art keywords
outlet
valve
bore
outlet bore
spring
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.)
Withdrawn
Application number
EP06725512A
Other languages
German (de)
French (fr)
Inventor
Walter Fuchs
Andreas Dutt
Waldemar Kiel
Jochen Aleker
Arnold Gente
Angelo Santamaria
Wolfgang Majer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1888911A1 publication Critical patent/EP1888911A1/en
Withdrawn legal-status Critical Current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
    • F02M59/44—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
    • F02M59/46—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
    • 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
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve

Definitions

  • the invention relates to an outlet nozzle of a liquid pressure line, in particular a high-pressure fuel line of a high-pressure piston pump.
  • Fig. 4 shows a high-pressure piston pump 20 according to the prior art.
  • an outlet 22 is provided with an outlet bore 23 and an outlet valve 24 integrated therein.
  • a threaded adapter 26 is screwed, the other end has a custom external thread 27.
  • the outlet valve 24 includes a valve ball 28 which is displaceably guided in the outlet bore 23 and which is pressed by a valve spring 29 into abutment against a conical valve seat 30 of the outlet bore 23.
  • the valve spring 29 is supported on the threaded adapter 26, the end face 31 forms a stop for the opening movement of the valve ball 28.
  • the outlet valve 24 seals the limited by a piston 32 high-pressure delivery chamber 33 of the high-pressure pump 20 and the outgoing therefrom and opening on the valve seat 30 pressure line 34 and opens when the prevailing pressure sufficient toteilêtn the valve ball 28 against the action of the valve spring 29.
  • connection thread is provided at the outlet connection, which leads to lower stresses under internal pressure load and thus to higher component strength; - Significant shortening of the overall length and thus better installation situation on the engine and material savings;
  • the outlet nozzle according to the invention can be used in particular for high-pressure pumps for sealing the high-pressure conveying space.
  • Fig. 1 shows a first embodiment of the invention
  • Fig. 2 shows a second embodiment of the invention
  • Outlet nozzle in a detail view according to Il in Fig. 1;
  • FIG. 3 shows a third embodiment of the outlet nozzle according to the invention in a detail view according to II in Fig. 1.
  • Fig. 4 shows the outlet of a high-pressure piston pump according to the prior art.
  • Fig. 1 shows a hydraulic high-pressure piston pump 1 of a fuel injection device for an internal combustion engine.
  • an outlet 3 is provided with an outlet 4, an outlet valve 5 integrated therein and with a custom external thread 6.
  • the outlet valve 5 comprises a valve ball 7 which is displaceably guided in the outlet bore 4 and which is pressed by a valve spring 8 into contact with a conical valve seat 9 of the outlet bore 4.
  • the valve spring 8 is supported on a sleeve-shaped spring holder 10 which is fully inserted into the outlet bore 4 and pressed therein.
  • the spring holder 10 may also be screwed into the outlet bore 4 or fixed therein by welding.
  • the outlet valve 5 seals the limited by a piston 11 Hochdruck complexraum 12 of the high-pressure pump 1 and the outgoing therefrom and the valve seat 9 high-pressure line 13 and opens when the prevailing pressure is sufficient to memorizen the valve ball 7 against the action of the valve spring 8.
  • the outlet 3 shown in Fig. 2 differs only in that the valve ball is replaced by a valve piston or calotte T with conical or dome-shaped valve sealing surface and the spring holder 10 by means of a locking ring 14 which in an annular groove of Outlet hole 4 is inserted, is fixed in the outlet hole 4.
  • the guide diameter of the outlet bore 4 for the valve piston T is here at the same time the joint diameter for the pen holder 10, whereby two precision diameters can be produced in one operation.
  • the guide diameter is machined in the same setting as the valve seat 9. This leads to very good positional tolerances (axial runout, concentricity), which ensure a high quality of the exhaust valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Check Valves (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention relates to an outlet connection (3) of a fluid high-pressure line (13), in particular a high-pressure line for fuel. Said connection comprises: an outlet bore (4); an outlet valve (5) that is situated in said bore (4), the valve element (7) of which can be displaced in said bore (4) and can be controlled by the pressure prevailing in the high-pressure line (13) in opposition to the action of a spring element (8); a spring retainer (10), which is inserted into the outlet bore (4) and fixed in the latter and on which the spring element (8) is supported; and an external thread (6).

Description

Auslassstutzen für eine HochdruckpumpeOutlet for a high-pressure pump
Stand der TechnikState of the art
Die Erfindung betrifft einen Auslassstutzen einer Flüssigkeit-Druckleitung, insbesondere einer Kraftstoff-Hochdruckleitung einer Hochdruck-Kolbenpumpe.The invention relates to an outlet nozzle of a liquid pressure line, in particular a high-pressure fuel line of a high-pressure piston pump.
Fig. 4 zeigt eine Hochdruck-Kolbenpumpe 20 nach dem Stand der Technik. Am Zylinderkopf 21 der Hochdruckpumpe 20 ist ein Auslassstutzen 22 mit einer Auslassbohrung 23 und einem darin integrierten Auslassventil 24 vorgesehen. In ein Innengewinde 25 der Auslassbohrung 23 ist ein Gewindeadapter 26 eingeschraubt, der anderenends ein kundenspezifisches Außengewinde 27 hat. Das Auslassventil 24 umfasst eine in der Auslassbohrung 23 verschiebbar geführte Ventilkugel 28, die durch eine Ventilfeder 29 in Anlage an einen konischen Ventilsitz 30 der Auslassbohrung 23 gedrückt wird. Die Ventilfeder 29 ist am Gewindeadapter 26 abgestützt, dessen Stirnseite 31 einen Anschlag für die Öffnungsbewegung der Ventilkugel 28 bildet. Das Auslassventil 24 dichtet den von einem Kolben 32 begrenzten Hochdruckförderraum 33 der Hochdruckpumpe 20 bzw. die davon abgehende und am Ventilsitz 30 mündende Druckleitung 34 ab und öffnet, wenn der darin herrschende Druck ausreicht, die Ventilkugel 28 gegen die Wirkung der Ventilfeder 29 aufzusteuern.Fig. 4 shows a high-pressure piston pump 20 according to the prior art. On the cylinder head 21 of the high-pressure pump 20, an outlet 22 is provided with an outlet bore 23 and an outlet valve 24 integrated therein. In an internal thread 25 of the outlet bore 23, a threaded adapter 26 is screwed, the other end has a custom external thread 27. The outlet valve 24 includes a valve ball 28 which is displaceably guided in the outlet bore 23 and which is pressed by a valve spring 29 into abutment against a conical valve seat 30 of the outlet bore 23. The valve spring 29 is supported on the threaded adapter 26, the end face 31 forms a stop for the opening movement of the valve ball 28. The outlet valve 24 seals the limited by a piston 32 high-pressure delivery chamber 33 of the high-pressure pump 20 and the outgoing therefrom and opening on the valve seat 30 pressure line 34 and opens when the prevailing pressure sufficient to aufzusteuern the valve ball 28 against the action of the valve spring 29.
Vorteile der ErfindungAdvantages of the invention
Der erfindungsgemäße Auslassstutzen mit den Merkmalen des Patentanspruchs 1 hat demgegenüber folgende Vorteile:The outlet nozzle according to the invention with the features of claim 1 has the following advantages:
- vollständige Integration aller Ventilbauteile in den Auslassstutzen;- complete integration of all valve components in the outlet port;
- das kundenspezifische Anschlussgewinde ist am Auslassstutzen vorgesehen, was zu geringeren Spannungen bei Innendruckbelastung und somit zu höherer Bauteilfestigkeit führt; - deutliche Verkürzung der Baulänge und dadurch bessere Einbausituation am Motor und Materialersparnis;- The customer-specific connection thread is provided at the outlet connection, which leads to lower stresses under internal pressure load and thus to higher component strength; - Significant shortening of the overall length and thus better installation situation on the engine and material savings;
- kein Gewindeadapter mit zwei Gewinden erforderlich;- No threaded adapter with two threads required;
- Entfall der bisher zwischen Gewindeadapter und Auslassstutzen vorgesehenen Dichtstelle; - keine Gefahr, dass bei Leitungsmontage, Demontage und Wiedermontage im- elimination of the previously provided between threaded adapter and outlet nozzle sealing; - no danger that during line assembly, disassembly and reassembly in
Service der Gewindeadapter versehentlich vom Kunden gelöst oder weitergedreht wird.Service the threaded adapter is inadvertently loosened or further rotated by the customer.
Der erfindungsgemäße Auslassstutzen kann insbesondere bei Hochdruckpumpen zur Abdichtung des Hochdruckförderraums eingesetzt werden.The outlet nozzle according to the invention can be used in particular for high-pressure pumps for sealing the high-pressure conveying space.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar. ZeichnungenFurther advantages and advantageous embodiments of the subject invention are the description, the drawings and claims removed. drawings
Ausführungsbeispiele des erfindungsgemäßen Auslassstutzens sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Embodiments of the outlet nozzle according to the invention are illustrated in the drawings and explained in more detail in the following description. Show it:
Fig. 1 ein erstes Ausführungsbeispiel des erfindungsgemäßenFig. 1 shows a first embodiment of the invention
Auslassstutzens am Beispiel einer Hochdruck-Kolbenpumpe;Outlet nozzle using the example of a high-pressure piston pump;
Fig. 2 ein zweites Ausführungsbeispiel des erfindungsgemäßenFig. 2 shows a second embodiment of the invention
Auslassstutzens in einer Detailansicht gemäß Il in Fig. 1 ;Outlet nozzle in a detail view according to Il in Fig. 1;
Fig. 3 ein drittes Ausführungsbeispiel des erfindungsgemäßen Auslassstutzens in einer Detailansicht gemäß Il in Fig. 1 ; und3 shows a third embodiment of the outlet nozzle according to the invention in a detail view according to II in Fig. 1. and
Fig. 4 den Auslassstutzen einer Hochdruck-Kolbenpumpe nach dem Stand der Technik.Fig. 4 shows the outlet of a high-pressure piston pump according to the prior art.
Beschreibung der AusführungsbeispieleDescription of the embodiments
Fig. 1 zeigt eine hydraulische Hochdruck-Kolbenpumpe 1 einer Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine. Am Zylinderkopf 2 der Kolbenpumpe ist ein Auslassstutzen 3 mit einer Auslassbohrung 4, einem darin integrierten Auslassventil 5 und mit einem kundenspezifisches Außengewinde 6 vorgesehen. Das Auslassventil 5 umfasst eine in der Auslassbohrung 4 verschiebbar geführte Ventilkugel 7, die durch eine Ventilfeder 8 in Anlage an einen konischen Ventilsitz 9 der Auslassbohrung 4 gedrückt wird. Die Ventilfeder 8 ist an einem hülsenförmigen Federhalter 10 abgestützt, der vollständig in die Auslassbohrung 4 eingeschoben und darin eingepresst ist. Alternativ kann der Federhalter 10 auch in die Auslassbohrung 4 eingeschraubt oder darin durch Verschweißen fixiert sein. Das Auslassventil 5 dichtet den von einem Kolben 11 begrenzten Hochdruckförderraum 12 der Hochdruckpumpe 1 bzw. die davon abgehende und am Ventilsitz 9 mündende Hochdruckleitung 13 ab und öffnet, wenn der darin herrschende Druck ausreicht, die Ventilkugel 7 gegen die Wirkung der Ventilfeder 8 aufzusteuern.Fig. 1 shows a hydraulic high-pressure piston pump 1 of a fuel injection device for an internal combustion engine. On the cylinder head 2 of the piston pump, an outlet 3 is provided with an outlet 4, an outlet valve 5 integrated therein and with a custom external thread 6. The outlet valve 5 comprises a valve ball 7 which is displaceably guided in the outlet bore 4 and which is pressed by a valve spring 8 into contact with a conical valve seat 9 of the outlet bore 4. The valve spring 8 is supported on a sleeve-shaped spring holder 10 which is fully inserted into the outlet bore 4 and pressed therein. Alternatively, the spring holder 10 may also be screwed into the outlet bore 4 or fixed therein by welding. The outlet valve 5 seals the limited by a piston 11 Hochdruckförderraum 12 of the high-pressure pump 1 and the outgoing therefrom and the valve seat 9 high-pressure line 13 and opens when the prevailing pressure is sufficient to aufzusteuern the valve ball 7 against the action of the valve spring 8.
Von Fig.1 unterscheidet sich der in Fig. 2 gezeigte Auslassstutzen 3 lediglich dadurch, dass die Ventilkugel durch einen Ventilkolben bzw. -kalotte T mit konischer bzw. kalottenförmiger Ventildichtfläche ersetzt ist und der Federhalter 10 mittels eines Sicherungsrings 14, der in eine Ringnut der Auslassbohrung 4 eingelegt ist, in der Auslassbohrung 4 fixiert ist. Der Führungsdurchmesser der Auslassbohrung 4 für den Ventilkolben T ist hier gleichzeitig der Fügedurchmesser für den Federhalter 10, wodurch zwei Präzisionsdurchmesser in einem Arbeitsgang hergestellt werden können. Der Führungsdurchmesser wird in der gleichen Aufspannung wie der Ventilsitz 9 bearbeitet. Dies führt zu sehr guten Lagetoleranzen (Planlauf, Koaxialität), die eine hohe Qualität des Auslassventils sicherstellen.From Fig.1, the outlet 3 shown in Fig. 2 differs only in that the valve ball is replaced by a valve piston or calotte T with conical or dome-shaped valve sealing surface and the spring holder 10 by means of a locking ring 14 which in an annular groove of Outlet hole 4 is inserted, is fixed in the outlet hole 4. The guide diameter of the outlet bore 4 for the valve piston T is here at the same time the joint diameter for the pen holder 10, whereby two precision diameters can be produced in one operation. The guide diameter is machined in the same setting as the valve seat 9. This leads to very good positional tolerances (axial runout, concentricity), which ensure a high quality of the exhaust valve.
Von Fig.1 unterscheidet sich der in Fig. 3 gezeigte Auslassstutzen 3 lediglich dadurch, dass der Federhalter 10' an seinem in Einführrichtung hinteren Ende Rastnasen, z.B. Blechbiegelaschen, 15 aufweist, die hinter einen Ringabsatz 16 der Auslassbohrung 4 verrastet sind, d.h. in der Auslassbohrung 4 durch Formschluss fixiert sind. 1 only differs in that the spring holder 10 'at its rear end in the insertion direction locking lugs, e.g. Blechbiegelaschen, 15 which are latched behind an annular shoulder 16 of the outlet bore 4, i. are fixed in the outlet hole 4 by positive locking.

Claims

Patentansprüche claims
1. Auslassstutzen (3) einer Flüssigkeit-Druckleitung (13), insbesondere einer Kraftstoff-Hochdruckleitung, mit einer Auslassbohrung (4), mit einem in der Auslassbohrung (4) angeordneten Auslassventil (5), dessen in der1. outlet nozzle (3) of a liquid-pressure line (13), in particular a high-pressure fuel line, with an outlet bore (4), with a in the outlet bore (4) arranged outlet valve (5) whose in the
Auslassbohrung (4) verschiebbar geführtes Ventilelement (7; 7') von dem in der Druckleitung (13) herrschenden Druck gegen die Wirkung eines Federelements (8) aufsteuerbar ist, mit einem in die Auslassbohrung (4) eingeführten und darin fixierten Federhalter (10; 10'), an dem das Federelement (8) abgestützt ist, und mit einem Anschlussaußengewinde (6).Outlet bore (4) displaceably guided valve element (7, 7 ') of the in the pressure line (13) prevailing pressure against the action of a spring element (8) aufsteuerbar, with a in the outlet bore (4) inserted and fixed therein spring holder (10; 10 '), on which the spring element (8) is supported, and with a connection external thread (6).
2. Auslassstutzen nach Anspruch 1 , dadurch gekennzeichnet, dass der Federhalter (10; 10') vollständig in die Auslassbohrung (4) eingeführt ist.2. outlet according to claim 1, characterized in that the spring holder (10; 10 ') is completely inserted into the outlet bore (4).
3. Auslassstutzen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Federhalter (10; 10') in die Auslassbohrung (4) eingepresst oder eingeschraubt ist.3. outlet according to claim 1 or 2, characterized in that the spring holder (10, 10 ') is pressed or screwed into the outlet bore (4).
4. Auslassstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Federhalter (10; 10') mit dem Auslassstutzen (3) verschweißt ist.4. outlet according to one of the preceding claims, characterized in that the spring holder (10, 10 ') with the outlet nozzle (3) is welded.
5. Auslassstutzen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Federhalter (10) in der Auslassbohrung (4) mittels eines Sicherungsrings (14), der in eine Ringnut der Auslassbohrung (4) eingelegt ist, fixiert ist.5. outlet according to claim 1 or 2, characterized in that the spring holder (10) in the outlet bore (4) by means of a securing ring (14) which is inserted into an annular groove of the outlet bore (4) is fixed.
6. Auslassstutzen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Federhalter (10') in der Auslassbohrung (4) durch Formschluss fixiert ist, insbesondere hinter einem Ringabsatz (16) der Auslassbohrung (4) verrastet ist.6. outlet according to claim 1 or 2, characterized in that the spring holder (10 ') in the outlet bore (4) is fixed by positive locking, in particular behind an annular shoulder (16) of the outlet bore (4) is latched.
7. Auslassstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Federelement (8) als Ventilfeder ausgebildet ist.7. outlet according to one of the preceding claims, characterized in that the spring element (8) is designed as a valve spring.
8. Auslassstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Auslassbohrung (4) einen Ventilsitz (9) aufweist, mit dem das Ventilelement (7; 7') zusammenwirkt.8. Outlet nozzle according to one of the preceding claims, characterized in that the outlet bore (4) has a valve seat (9), with which the valve element (7, 7 ') cooperates.
9. Auslassstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ventilelement (7; 7') eine Ventilkugel, ein Ventilkolben, -kegel oder -platte, oder eine Ventilkalotte ist.9. outlet according to one of the preceding claims, characterized in that the valve element (7, 7 ') is a valve ball, a valve piston, cone or plate, or a Ventilkalotte.
10. Auslassstutzen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Führungsdurchmesser der Auslassbohrung (4) für das Ventilelement (7; 7') gleichzeitig der Fügedurchmesser für den Federhalter (10; 10') ist.10. Outlet nozzle according to one of the preceding claims, characterized in that the guide diameter of the outlet bore (4) for the valve element (7; 7 ') is at the same time the joint diameter for the spring holder (10; 10').
11. Kolbenpumpe (1 ), insbesondere Hochdruck-Kolbenpumpe einer11. piston pump (1), in particular high-pressure piston pump a
Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine, mit einem Auslassstutzen (3) nach einem der vorhergehenden Ansprüche. Fuel injection device for an internal combustion engine, with an outlet nozzle (3) according to one of the preceding claims.
EP06725512A 2005-05-25 2006-04-03 Outlet connection for a high-pressure pump Withdrawn EP1888911A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510024042 DE102005024042A1 (en) 2005-05-25 2005-05-25 Outlet for a high-pressure pump
PCT/EP2006/061266 WO2006125690A1 (en) 2005-05-25 2006-04-03 Outlet connection for a high-pressure pump

Publications (1)

Publication Number Publication Date
EP1888911A1 true EP1888911A1 (en) 2008-02-20

Family

ID=36636386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06725512A Withdrawn EP1888911A1 (en) 2005-05-25 2006-04-03 Outlet connection for a high-pressure pump

Country Status (7)

Country Link
US (1) US20080190492A1 (en)
EP (1) EP1888911A1 (en)
JP (1) JP2008540934A (en)
KR (1) KR20080014792A (en)
CN (1) CN101180464B (en)
DE (1) DE102005024042A1 (en)
WO (1) WO2006125690A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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US11339688B2 (en) 2020-01-29 2022-05-24 Borgwarner, Inc. Variable camshaft timing valve assembly

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007012079U1 (en) * 2007-08-30 2009-01-08 Truttenbach Asset Management Gbr (Vertretungsberechtigter Gesellschafter: Andreas Truttenbach, 77866 Rheinau) Gas pressure regulator
US9200717B2 (en) * 2008-01-21 2015-12-01 Ausco, Inc. Pressure relief valve with singular body
DE102008009243A1 (en) 2008-02-07 2009-08-13 Vladimir Volchkov Exhaust valve for use in pressure pipe of e.g. high-pressure pump, has element with mushroom-like body structure, and shaft passing into borehole of holder comprising set of openings with axes that are parallel to pressure pipe line axis
DE102008001572A1 (en) 2008-05-06 2009-11-12 Robert Bosch Gmbh Spring retaining sleeve
ES2542507T3 (en) * 2008-11-07 2015-08-06 Delphi International Operations Luxembourg S.À R.L. Fuel pump valve assembly
DE102008057089A1 (en) * 2008-11-13 2010-05-20 Continental Mechanical Components Germany Gmbh Pump unit for a high-pressure pump
DE102009027644A1 (en) 2009-07-13 2011-01-20 Robert Bosch Gmbh Fuel injection system, particularly common-rail-system, has high-pressure pump, which delivers fuel to high-pressure reservoir, where high-pressure pump is impinged with high-pressure
IT1396590B1 (en) * 2009-11-03 2012-12-14 Bosch Gmbh Robert PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE
JP5198511B2 (en) * 2010-06-29 2013-05-15 株式会社デンソー Constant residual pressure valve
DE102010030735A1 (en) 2010-06-30 2012-01-05 Robert Bosch Gmbh Exhaust valve for e.g. high pressure diesel injection pump, has valve element designed such that axial displacement between longitudinal axis of outlet hole and valve seat is compensable over valve element
DE102010061783A1 (en) 2010-11-23 2012-05-24 Robert Bosch Gmbh Exhaust valve i.e. return valve, for common-rail-high pressure pump utilized in common-rail-fuel injection system, has valve element comprising casing and ball that is connected with casing in fixed manner and guided indirectly over casing
CN102102666A (en) * 2011-02-15 2011-06-22 甄立新 Piston diaphragm device
DE102012002061A1 (en) * 2012-02-03 2013-08-08 Emitec Gesellschaft Für Emissionstechnologie Mbh Dosing valve for freeze-risk additives
DE102012212752A1 (en) 2012-07-20 2014-01-23 Robert Bosch Gmbh Housing portion for e.g. diesel injection pump of fuel injection system, has high pressure valve whose valve element is guided over connector that is gripped non-positively and/or positively with portion through high pressure bore
CN106255823B (en) * 2014-04-25 2020-09-29 日立汽车系统株式会社 Valve mechanism and high-pressure fuel pump
JP2016176482A (en) * 2015-03-18 2016-10-06 株式会社デンソー Fluid control valve and high-pressure pump
WO2016186607A1 (en) * 2015-05-15 2016-11-24 Cummins Inc. High pressure common rail fuel pump outlet check valve spring retainer method
CN105952630B (en) * 2016-06-21 2019-11-22 珠海格力电器股份有限公司 Hydraulic pump and air conditioner
USD852856S1 (en) * 2017-11-08 2019-07-02 Anvil International, Llc Weld outlet
CN110159470A (en) * 2019-05-31 2019-08-23 南京威孚金宁有限公司 A kind of VE dispensing pump damping delivery valve and application method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601401A1 (en) * 1975-01-15 1976-09-23 Vysoke Uceni Tech Brne INJECTION PUMP FOR DIESEL ENGINES
DE2705489A1 (en) * 1977-02-10 1978-08-17 Bosch Gmbh Robert FUEL INJECTION PUMP FOR COMBUSTION MACHINES
DE3615922A1 (en) * 1985-05-14 1986-11-20 Diesel Kiki Co. Ltd., Tokio/Tokyo FUEL INJECTION PUMP FOR AN INTERNAL COMBUSTION ENGINE
DE4216068A1 (en) * 1992-05-15 1993-11-18 Bosch Gmbh Robert Constant pressure valve

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1900385A (en) * 1926-03-05 1933-03-07 Franklin Valveless Engine Comp Fuel feeding means
US2594641A (en) * 1946-08-29 1952-04-29 Henry Valve Company Inc Check valve
GB779137A (en) * 1952-03-01 1957-07-17 Kloeckner Humboldt Deutz Ag Fluid-pressure relief valve particularly for fuel injection devices
US2836193A (en) * 1954-12-08 1958-05-27 Gen Motors Corp Check valve device
US2823048A (en) * 1957-04-17 1958-02-11 Hansen Mfg Co Valve unit
US3018914A (en) * 1958-07-11 1962-01-30 Otto Bernz Company Inc Pressure container construction
US3479999A (en) * 1967-11-02 1969-11-25 Ulrikh Ulrikhovich Keller Injection pump valve
GB1255652A (en) * 1968-02-07 1971-12-01 Cav Ltd Fuel injection pump delivery valves
US4535808A (en) * 1983-07-08 1985-08-20 Dicken Manufacturing Company Check valve
JPH0332783Y2 (en) * 1985-06-13 1991-07-11
US4964391A (en) * 1989-05-30 1990-10-23 Walbro Corporation Check valve for engine fuel delivery systems
US5058623A (en) * 1990-09-19 1991-10-22 Blissfield Manufacturing Company Valve assembly
DE4136756A1 (en) * 1991-11-08 1993-05-13 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
JPH07247936A (en) * 1994-03-08 1995-09-26 Isuzu Motors Ltd Valve gear of fuel injection pump for diesel engine
US5477829A (en) * 1994-08-08 1995-12-26 Ford Motor Company Automotive returnless fuel system pressure valve
US6116273A (en) * 1994-12-06 2000-09-12 Cummins Engine Company, Inc. Fuel metering check valve arrangement for a time-pressure controlled unit fuel injector
US5661895A (en) * 1995-07-25 1997-09-02 Outboard Marine Corporatin Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump
US6971405B2 (en) * 2002-10-09 2005-12-06 Delphi Technologies, Inc. Check valve for fuel pump
DE10254711B3 (en) * 2002-11-23 2004-04-15 Motorenfabrik Hatz Gmbh & Co Kg Pressure valve with hydraulic injection adjustment function for fuel injection systems for IC engines has shutoff bores in valve body and valve cylinder, connected when valve is closed
US6953026B2 (en) * 2003-10-16 2005-10-11 Visteon Global Technologies, Inc. Pressure regulating valve for automotive fuel system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601401A1 (en) * 1975-01-15 1976-09-23 Vysoke Uceni Tech Brne INJECTION PUMP FOR DIESEL ENGINES
US4099894A (en) * 1975-01-15 1978-07-11 Vysoke Uceni Technicke Fuel injection for diesel engines having controlled-rate pressure relief means
DE2705489A1 (en) * 1977-02-10 1978-08-17 Bosch Gmbh Robert FUEL INJECTION PUMP FOR COMBUSTION MACHINES
DE3615922A1 (en) * 1985-05-14 1986-11-20 Diesel Kiki Co. Ltd., Tokio/Tokyo FUEL INJECTION PUMP FOR AN INTERNAL COMBUSTION ENGINE
DE4216068A1 (en) * 1992-05-15 1993-11-18 Bosch Gmbh Robert Constant pressure valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006125690A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11339688B2 (en) 2020-01-29 2022-05-24 Borgwarner, Inc. Variable camshaft timing valve assembly

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US20080190492A1 (en) 2008-08-14
WO2006125690A1 (en) 2006-11-30
DE102005024042A1 (en) 2006-11-30
KR20080014792A (en) 2008-02-14
CN101180464B (en) 2011-11-16
CN101180464A (en) 2008-05-14

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