DE102013218895A1 - Inlet valve for one pump and pump with inlet valve - Google Patents
Inlet valve for one pump and pump with inlet valve Download PDFInfo
- Publication number
- DE102013218895A1 DE102013218895A1 DE201310218895 DE102013218895A DE102013218895A1 DE 102013218895 A1 DE102013218895 A1 DE 102013218895A1 DE 201310218895 DE201310218895 DE 201310218895 DE 102013218895 A DE102013218895 A DE 102013218895A DE 102013218895 A1 DE102013218895 A1 DE 102013218895A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- valve member
- gap
- inlet
- pump
- 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- Withdrawn
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Images
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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
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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
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
- F02M59/367—Pump inlet valves of the check valve type being open when actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/28—Details of throttles in fuel-injection apparatus
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means
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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
- F02M59/44—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
- F02M59/464—Inlet valves of the check valve type
Abstract
Es wird ein Einlassventil für eine Pumpe, insbesondere Kraftstoffhochdruckpumpe, vorgeschlagen, das ein Ventilgehäuse (40) aufweist und ein kolbenförmiges Ventilglied (52), das im Ventilgehäuse (40) verschiebbar geführt ist. Das Ventilglied (52) wirkt mit einem Endbereich (56, 58) mit einem Ventilsitz (48) zusammen und ragt mit seinem anderen Endbereich (54) in einen Ventilraum (68). Der Ventilraum (68) ist hydraulisch mit einem Entlastungsbereich (70) verbunden, wobei das Ventilglied (52) mit seinem Endbereich (54) bei dessen Öffnungs- bzw. Schließbewegung aus dem Ventilraum (68) austaucht bzw. in diesen eintaucht. In radialer Richtung bezüglich der Längsachse (53) des Ventilglieds (52) ist zwischen dem Ventilglied (52) oder einem auf dem Ventilglied (52) angeordneten Bauteil (60) und der Begrenzung (66) des Ventilraums (68) ein Spalt (74, 76) vorhanden. Der Spalt (76) ist bei im Bereich seiner Schließstellung angeordnetem oder mit nur geringem Öffnungshub aus dem Ventilraum (68) ausgetauchtem Ventilglied (52) kleiner als der Spalt (74) bei mit größerem Öffnungshub geöffnetem, aus dem Ventilraum (68) ausgetauchtem Ventilglied (52). Die Schließbewegung des Ventilglieds (52) wird dadurch gedämpft und verlangsamt bevor das Ventilglied (52) mit seiner Dichtfläche (58) am Ventilsitz (48) zur Anlage kommt.An intake valve for a pump, in particular a high-pressure fuel pump, is proposed which has a valve housing (40) and a piston-shaped valve member (52) which is displaceably guided in the valve housing (40). The valve member (52) cooperates with an end region (56, 58) with a valve seat (48) and projects with its other end region (54) into a valve chamber (68). The valve chamber (68) is hydraulically connected to a relief region (70), wherein the valve member (52) with its end region (54) during its opening or closing movement from the valve chamber (68) is immersed or immersed in this. In the radial direction with respect to the longitudinal axis (53) of the valve member (52) is between the valve member (52) or on the valve member (52) arranged member (60) and the boundary (66) of the valve chamber (68) has a gap (74, 76) available. The gap (76) is smaller than the gap (74) when the valve member (52) is opened out of the valve space (68) when the valve member (52) is located in the region of its closed position or with only a slight opening stroke from the valve chamber (68). 52). The closing movement of the valve member (52) is thereby damped and slowed before the valve member (52) with its sealing surface (58) comes to rest on the valve seat (48).
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Einlassventil für eine Pumpe, insbesondere Kraftstoffhochdruckpumpe, sowie einer Pumpe, insbesondere Kraftstoffhochdruckpumpe, mit Einlassventil, nach der Gattung des Anspruchs 1 bzw. des Anspruchs 8. The invention is based on an inlet valve for a pump, in particular a high-pressure fuel pump, and a pump, in particular a high-pressure fuel pump, with inlet valve, according to the preamble of claim 1 and of
Ein solches Einlassventil und eine Pumpe mit Einlassventil in Form einer Kraftstoffhochdruckpumpe ist durch die
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Einlassventil hat demgegenüber den Vorteil, dass sich im Ventilraum infolge des verkleinerten Spalts eine die Schließbewegung des Ventilglieds dämpfende Druckerhöhung ergibt wenn sich das Ventilglied im Bereich seiner Schließstellung befindet. Dadurch wird die Bewegung des Ventilglieds verlangsamt und somit die Belastung beim Auftreffen der Dichtfläche auf den Ventilsitz verringert. Beschädigungen können somit vermieden werden.The inlet valve according to the invention has the advantage that in the valve chamber due to the reduced gap, a closing movement of the valve member damping pressure increase results when the valve member is in the region of its closed position. As a result, the movement of the valve member is slowed down and thus reduces the load upon impact of the sealing surface on the valve seat. Damage can thus be avoided.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen des erfindungsgemäßen Einlassventils angegeben. Die Ausbildung gemäß Anspruch 2 oder 3 ermöglicht auf einfache Weise den verkleinerten Spalt im Bereich der Schließstellung des Ventilglieds. Durch die Ausbildung gemäß Anspruch 5 ist sichergestellt, dass sich im Ventilraum ein erhöhter Druck aufbauen kann um die Bewegung des Ventilglieds zu dämpfen. Durch die Ausbildung gemäß Anspruch 9 ist eine Fördermengensteuerung mittels des Einlassventils ermöglicht. In the dependent claims advantageous refinements and developments of the inlet valve according to the invention are given. The embodiment of claim 2 or 3 allows in a simple way the reduced gap in the closed position of the valve member. The embodiment according to claim 5 ensures that an increased pressure can build up in the valve chamber in order to damp the movement of the valve member. Due to the construction according to claim 9, a flow rate control by means of the inlet valve is made possible.
Zeichnungdrawing
Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen
Beschreibung des AusführungsbeispielsDescription of the embodiment
In
Das Pumpenelement
In
Das Einlassventil
Das Ventilgehäuse
Der Ventilraum
Der kleinere Spalt
Der kleinere Spalt
Beim Saughub des Pumpenkolbens
In
Beim Einlassventil
In
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102004013244 A1 [0002] DE 102004013244 A1 [0002]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310218895 DE102013218895A1 (en) | 2013-09-20 | 2013-09-20 | Inlet valve for one pump and pump with inlet valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310218895 DE102013218895A1 (en) | 2013-09-20 | 2013-09-20 | Inlet valve for one pump and pump with inlet valve |
Publications (1)
Publication Number | Publication Date |
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DE102013218895A1 true DE102013218895A1 (en) | 2015-03-26 |
Family
ID=52623496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201310218895 Withdrawn DE102013218895A1 (en) | 2013-09-20 | 2013-09-20 | Inlet valve for one pump and pump with inlet valve |
Country Status (1)
Country | Link |
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DE (1) | DE102013218895A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106121888A (en) * | 2016-08-26 | 2016-11-16 | 龙口龙泵燃油喷射有限公司 | Single cylinder high pressure co-rail diesel pump assembly for common rail system |
WO2017050466A1 (en) * | 2015-09-24 | 2017-03-30 | Robert Bosch Gmbh | High-pressure pump having integrated suction valve |
IT202100024941A1 (en) * | 2021-09-29 | 2023-03-29 | Bosch Gmbh Robert | SUCTION VALVE FOR A HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE AND PUMP UNIT INCLUDING SUCH VALVE |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004013244A1 (en) | 2004-03-18 | 2005-10-06 | Robert Bosch Gmbh | High-pressure pump, in particular for a fuel injection device of an internal combustion engine |
-
2013
- 2013-09-20 DE DE201310218895 patent/DE102013218895A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004013244A1 (en) | 2004-03-18 | 2005-10-06 | Robert Bosch Gmbh | High-pressure pump, in particular for a fuel injection device of an internal combustion engine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017050466A1 (en) * | 2015-09-24 | 2017-03-30 | Robert Bosch Gmbh | High-pressure pump having integrated suction valve |
CN106121888A (en) * | 2016-08-26 | 2016-11-16 | 龙口龙泵燃油喷射有限公司 | Single cylinder high pressure co-rail diesel pump assembly for common rail system |
IT202100024941A1 (en) * | 2021-09-29 | 2023-03-29 | Bosch Gmbh Robert | SUCTION VALVE FOR A HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE AND PUMP UNIT INCLUDING SUCH VALVE |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |