DE102017103483B3 - roller plunger - Google Patents
roller plunger Download PDFInfo
- Publication number
- DE102017103483B3 DE102017103483B3 DE102017103483.8A DE102017103483A DE102017103483B3 DE 102017103483 B3 DE102017103483 B3 DE 102017103483B3 DE 102017103483 A DE102017103483 A DE 102017103483A DE 102017103483 B3 DE102017103483 B3 DE 102017103483B3
- Authority
- DE
- Germany
- Prior art keywords
- housing
- roller
- bridge piece
- discs
- shirt
- 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.)
- Active
Links
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
- 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
- F02M59/48—Assembling; Disassembling; Replacing
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0408—Pistons
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0439—Supporting or guiding means for the pistons
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
- F01L1/143—Tappets; Push rods for use with overhead camshafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Rollenstößel (1), insbesondere für eine Kraftstoffhochdruckpumpe oder für einen Ventiltrieb einer Brennkraftmaschine, mit einem Gehäuse (2), welches bei seiner antriebsseitigen Stirn (3) eine lose Rolle (4) für einen periodischen Huberzeuger hat, die in einer einteilig zu einem Brückenstück (5) gehörenden Schale (18) verläuft, welches Brückenstück (5) das Gehäuse (2), hieran einteilig angebunden, durchragt sowie in Richtung zu einer abtriebsseitigen Stirn (6) des Gehäuses (2) eine Anlage (7) für ein Stößelfolgeteil aufweist, wobei der Stößel (1) über separat gefügte Anlaufmittel (8) für Stirnseiten (9) der Rolle (4) verfügt, die als zwei in Ausnehmungen (19) eines Hemdes (10) des Gehäuses (2) sitzende Scheiben vorliegen, gegen deren Innenseiten (11) die Rolle (4) mit ihren Stirnseiten (9) läuft, welche Scheiben (8) bündig oder eingerückt zu einem Außenmantel (12) des Hemdes (10) des Gehäuses (2) angeordnet sowie über wenigstens einen das Gehäuse (2) in einer respektiven Ringnut (13) dessen Außenmantels (12) umspannenden Sicherungsring/Sprengring (14) lagefixiert sind, der gleichfalls in einem Schlitz (15) der jeweiligen Scheibe (8) sitzt.Roller tappet (1), in particular for a high-pressure fuel pump or for a valve train of an internal combustion engine, with a housing (2) having at its drive-side end (3) a loose roller (4) for a periodic Huberzeuger in one piece to a bridge piece (5) belonging shell (18) extends, which bridge piece (5) the housing (2), integrally connected thereto, penetrates and in the direction of a driven-side end (6) of the housing (2) has a system (7) for a follower part , wherein the plunger (1) has separately joined starting means (8) for end faces (9) of the roller (4), which are present as two seats in recesses (19) of a shirt (10) of the housing (2) against which Inner sides (11) the roller (4) with their end faces (9) runs, which discs (8) flush or indented to an outer jacket (12) of the shirt (10) of the housing (2) and arranged over at least one housing (2 in egg ner respectful annular groove (13) whose outer jacket (12) spanning circlip / snap ring (14) are fixed in position, which also sits in a slot (15) of the respective disc (8).
Description
Die Erfindung betrifft einen Rollenstößel, insbesondere für eine Kraftstoffhochdruckpumpe oder für einen Ventiltrieb einer Brennkraftmaschine, mit einem Gehäuse, welches bei seiner antriebsseitigen Stirn eine lose Rolle für einen periodischen Huberzeuger hat, die in einer einteilig zu einem Brückenstück gehörenden Schale verläuft, welches Brückenstück das Gehäuse, hieran einteilig angebunden, durchragt sowie in Richtung zu einer abtriebsseitigen Stirn des Gehäuses eine Anlage für ein Stößelfolgeteil aufweist und wobei der Stößel über wenigstens ein separat gefügtes Anlaufmittel für Stirnseiten der Rolle verfügt.The invention relates to a roller tappet, in particular for a high-pressure fuel pump or for a valve train of an internal combustion engine, with a housing which has a loose role for a periodic Huberzeuger at its drive-side end, which runs in a one piece to a bridge piece shell, which bridge piece the housing , connected in one piece, projects through and in the direction of a driven-side end of the housing has a system for a ram follower part and wherein the ram has at least one separately joined starting means for end faces of the roller.
Ein gattungsgemäßer Rollenstößel, hier für eine Kraftstoffhochdruckpumpe, geht aus der
Ein weiterer Rollenstößel mit einer unmittelbaren axialen Sprengringsicherung für dessen Rolle geht aus den
Bei den vorgenannten Gestaltungen erweist sich die axiale Fixierung der losen Rolle über das jeweilige Ringteil als zu instabil und undefiniert. Gleichzeitig ist mit starkem Verschleiß im stirnseitigen Kontaktbereich zu rechnen.In the aforementioned designs, the axial fixation of the loose roll over the respective ring part proves to be too unstable and undefined. At the same time, heavy wear is to be expected in the frontal contact area.
Die
Aus der
Des Weiteren zeigt die
Zudem geht aus der
Schließlich wird auf den Rollenstößel nach der
Es ist Aufgabe der Erfindung, einen Rollenstößel mit einer fest und verschleißarm fixierten losen Rolle zu kreieren.It is an object of the invention to create a roller tappet with a fixed and low-wear fixed loose role.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass als Anlaufmittel zwei in Ausnehmungen eines Hemdes des Gehäuses sitzende Scheiben appliziert sind, gegen deren Innenseiten die Rolle mit ihren Stirnseiten läuft, welche Scheiben bündig oder eingerückt zu einem Außenmantel des Hemdes des Gehäuses angeordnet sowie über wenigstens einen das Gehäuse in einer respektiven Ringnut dessen Außenmantels umspannenden Sicherungsring/Sprengring lagefixiert sind, der gleichfalls in einem Schlitz der jeweiligen Scheibe sitzt.According to the invention this object is achieved in that as starting means two seated in recesses of a shirt of the housing discs are applied, against the insides of which the role runs with their faces, which discs arranged flush or indented to an outer jacket of the shirt of the housing and at least one Housing in a respective annular groove whose outer sheath spanning circlip / snap ring are fixed in position, which also sits in a slot of the respective disc.
Durch diese Maßnahmen liegt ein Stößel ohne die zitierten Nachteile vor. Es kommt nicht mehr zu Lageabweichungen der leicht montierbaren Rolle. Der stirnseitige Rollenanlauf erfolgt nunmehr unmittelbar über „feste” Scheiben. Letztgenannte, welche auch lediglich nur scheibenähnlich sein können, lassen sich einfach, bspw. durch Prägen oder Stanzen, fertigen und zupaaren.These measures provide a plunger without the cited disadvantages. It no longer comes to positional deviations of easy mountable role. The end-face roller start now takes place directly on "solid" discs. The latter, which may also only be disc-like, can be easily manufactured, for example, by stamping or stamping, and mated.
Eine simple Halterung für die Scheiben erfolgt erfindungsgemäß zugleich über wenigstens einen Ring wie einen Sprengring in einer entsprechenden Ringnut des Gehäuses. Der Ring wiederum sitzt in einer schlitzartigen Nut der jeweiligen Scheibe, diese fixierend, ein. Alternativ können die Scheiben auch eingeschraubt, verstemmt, verklebt, verlötet oder verschweißt sein.A simple holder for the discs is carried out according to the invention at the same time via at least one ring such as a snap ring in a corresponding annular groove of the housing. The ring in turn sits in a slot-like groove of the respective disc, this fixing, a. Alternatively, the discs can also be screwed, caulked, glued, soldered or welded.
Gemäß einer weiteren Fortbildung der Erfindung geht das Brückenstück unmittelbar vom oberen, antriebsseitigen Rand des Gehäuses aus, so dass sich eine Feinbearbeitung der Schale (Schleifen, Finishen wie Polieren etc.) als vergleichsweise einfach erweist.According to a further development of the invention, the bridge piece goes directly from the upper, drive-side edge of the housing, so that a fine machining of the shell (grinding, finishing such as polishing, etc.) proves to be relatively easy.
Die weiterhin vorgeschlagenen Axialdurchtritte im Brückenstück, welche lochartig sein können, verhindern ein „Aufpumpen” des Stößels im Betrieb und gestatten insbesondere einen ungehinderten Durchtritt von Schmiermittel wie Öl oder Kraftstoff.The further proposed axial passages in the bridge piece, which may be hole-like, prevent a "pumping" of the plunger during operation and in particular allow unimpeded passage of lubricant such as oil or fuel.
Besonders vorteilhaft ist es hierbei, wenn die vorgenannten Scheiben zumindest an ihren Innenseiten mit einer Verschleißschutzschicht wie einer DLC-Schicht oder dergleichen versehen sind, so dass ein besonders reibungsarmer Rollenanlauf vorliegt. Klar ist, dass ggf. auch die Schale oder Rolle mit einer solchen Schicht versehen sein können.It is particularly advantageous in this case if the aforementioned disks are provided at least on their insides with a wear protection layer such as a DLC layer or the like, so that there is a particularly low-friction roller start. It is clear that possibly also the shell or roll can be provided with such a layer.
Die Erfindung geht aus der Zeichnung hervor. Es zeigen:The invention is apparent from the drawing. Show it:
Dargestellt ist, s. insb.
In Richtung zu einer abtriebsseitigen Stirn
Stirnseiten
Wie gut aus den
Schließlich ist zu bemerken, dass das Brückenstück
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Rollenstößelroller plunger
- 22
- Gehäusecasing
- 33
- antriebsseitige Stirndrive-side forehead
- 44
- Rollerole
- 55
- Brückenstückbridge piece
- 66
- abtriebsseitige Stirnoutput-side forehead
- 77
- Anlageinvestment
- 88th
- Anlaufmittel, ScheibeStarting agent, disc
- 99
- Stirnseitefront
- 1010
- Hemdshirt
- 1111
- Innenseiteinside
- 1212
- Außenmantelouter sheath
- 1313
- Ringnut GehäuseRing groove housing
- 1414
- Sicherungsring/SprengringCirclip / snap ring
- 1515
- Schlitz ScheibeSlotted disc
- 1616
- Axialdurchtrittaxial passage
- 1717
- nicht vergebennot forgiven
- 1818
- SchaleBowl
- 1919
- Ausnehmungrecess
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017103483.8A DE102017103483B3 (en) | 2017-02-21 | 2017-02-21 | roller plunger |
CN201880011696.4A CN110312862B (en) | 2017-02-21 | 2018-01-17 | Roller tappet |
PCT/DE2018/100035 WO2018153396A1 (en) | 2017-02-21 | 2018-01-17 | Roller tappet |
EP18702907.9A EP3585998A1 (en) | 2017-02-21 | 2018-01-17 | Roller tappet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017103483.8A DE102017103483B3 (en) | 2017-02-21 | 2017-02-21 | roller plunger |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017103483B3 true DE102017103483B3 (en) | 2018-01-04 |
Family
ID=60662669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017103483.8A Active DE102017103483B3 (en) | 2017-02-21 | 2017-02-21 | roller plunger |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3585998A1 (en) |
CN (1) | CN110312862B (en) |
DE (1) | DE102017103483B3 (en) |
WO (1) | WO2018153396A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111749826A (en) * | 2019-03-26 | 2020-10-09 | 罗伯特·博世有限公司 | Roller tappet for high-pressure fuel pump |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230003183A1 (en) * | 2019-12-19 | 2023-01-05 | Mustafa Utku Unal | Tappet roller assembly |
CN112576469B (en) * | 2020-11-16 | 2022-12-16 | 中国航发西安动力控制科技有限公司 | Plunger roller of inner curve radial plunger motor |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2361679A1 (en) * | 1972-12-11 | 1974-06-12 | Caterpillar Tractor Co | COMBUSTION MACHINE |
DE2340074C3 (en) * | 1973-08-08 | 1977-11-17 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Roller tappets for fuel injection pumps for internal combustion engines |
DE102006041673A1 (en) * | 2006-02-20 | 2007-08-23 | Robert Bosch Gmbh | High pressure pump especially for fuel injection in IC engine has the cam follower supported axially by hardened low wear surfaces |
DE102006028348B3 (en) * | 2006-06-20 | 2007-10-31 | Siemens Ag | Rolling bearing device has locking element arranged so that in cavity of cylinder-shaped element it is coupled with positive locking with regard to axial and rotational direction in regard to center axis of cylinder-shaped element |
DE102008000710A1 (en) * | 2008-03-17 | 2009-09-24 | Robert Bosch Gmbh | high pressure pump |
DE102008017824A1 (en) * | 2008-04-08 | 2009-10-15 | Continental Automotive Gmbh | Tappet assembly for high-pressure pump of internal-combustion engine in motor vehicle, has retaining ring and formed such that movement of roller is controlled in roller shoe in direction of roller longitudinal axis |
DE102009056303A1 (en) * | 2009-11-30 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | roller plunger |
DE102011083571A1 (en) * | 2011-09-28 | 2013-03-28 | Robert Bosch Gmbh | Plunger assembly for a high-pressure fuel pump and high-pressure fuel pump |
DE102012212579A1 (en) * | 2012-07-18 | 2014-01-23 | Continental Automotive Gmbh | plunger assembly |
DE102012222217A1 (en) * | 2012-12-04 | 2014-06-05 | Continental Automotive Gmbh | roller plunger |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4943674B1 (en) * | 1969-08-12 | 1974-11-22 | ||
JP2011163253A (en) * | 2010-02-12 | 2011-08-25 | Ntn Corp | Tappet for pump |
DE102010026362A1 (en) * | 2010-07-07 | 2012-01-12 | Schaeffler Technologies Gmbh & Co. Kg | Roller shaft for fuel high pressure pump and valve train in quality or quantity-regular combustion engine, has separate contact body located in pocket, where contact body immediately contacts counter part or forehead |
-
2017
- 2017-02-21 DE DE102017103483.8A patent/DE102017103483B3/en active Active
-
2018
- 2018-01-17 EP EP18702907.9A patent/EP3585998A1/en not_active Withdrawn
- 2018-01-17 WO PCT/DE2018/100035 patent/WO2018153396A1/en unknown
- 2018-01-17 CN CN201880011696.4A patent/CN110312862B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2361679A1 (en) * | 1972-12-11 | 1974-06-12 | Caterpillar Tractor Co | COMBUSTION MACHINE |
DE2340074C3 (en) * | 1973-08-08 | 1977-11-17 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Roller tappets for fuel injection pumps for internal combustion engines |
DE102006041673A1 (en) * | 2006-02-20 | 2007-08-23 | Robert Bosch Gmbh | High pressure pump especially for fuel injection in IC engine has the cam follower supported axially by hardened low wear surfaces |
DE102006028348B3 (en) * | 2006-06-20 | 2007-10-31 | Siemens Ag | Rolling bearing device has locking element arranged so that in cavity of cylinder-shaped element it is coupled with positive locking with regard to axial and rotational direction in regard to center axis of cylinder-shaped element |
DE102008000710A1 (en) * | 2008-03-17 | 2009-09-24 | Robert Bosch Gmbh | high pressure pump |
DE102008017824A1 (en) * | 2008-04-08 | 2009-10-15 | Continental Automotive Gmbh | Tappet assembly for high-pressure pump of internal-combustion engine in motor vehicle, has retaining ring and formed such that movement of roller is controlled in roller shoe in direction of roller longitudinal axis |
DE102009056303A1 (en) * | 2009-11-30 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | roller plunger |
DE102011083571A1 (en) * | 2011-09-28 | 2013-03-28 | Robert Bosch Gmbh | Plunger assembly for a high-pressure fuel pump and high-pressure fuel pump |
DE102012212579A1 (en) * | 2012-07-18 | 2014-01-23 | Continental Automotive Gmbh | plunger assembly |
DE102012222217A1 (en) * | 2012-12-04 | 2014-06-05 | Continental Automotive Gmbh | roller plunger |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111749826A (en) * | 2019-03-26 | 2020-10-09 | 罗伯特·博世有限公司 | Roller tappet for high-pressure fuel pump |
Also Published As
Publication number | Publication date |
---|---|
CN110312862B (en) | 2021-08-06 |
EP3585998A1 (en) | 2020-01-01 |
CN110312862A (en) | 2019-10-08 |
WO2018153396A1 (en) | 2018-08-30 |
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Legal Events
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R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |