DE102011005656A1 - Fuel pump i.e. high pressure fuel pump, for common-rail fuel system, has metallic pump piston made of heat-treatment-free and coating-free bearing material, where bearing material is made by copper alloy, and wrought alloy - Google Patents
Fuel pump i.e. high pressure fuel pump, for common-rail fuel system, has metallic pump piston made of heat-treatment-free and coating-free bearing material, where bearing material is made by copper alloy, and wrought alloy Download PDFInfo
- Publication number
- DE102011005656A1 DE102011005656A1 DE102011005656A DE102011005656A DE102011005656A1 DE 102011005656 A1 DE102011005656 A1 DE 102011005656A1 DE 102011005656 A DE102011005656 A DE 102011005656A DE 102011005656 A DE102011005656 A DE 102011005656A DE 102011005656 A1 DE102011005656 A1 DE 102011005656A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- bearing material
- free
- fuel pump
- alloy
- 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.)
- Ceased
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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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
-
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- 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
- 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
- F02M59/445—Selection of particular materials
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0265—Pumps feeding common rails
-
- 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
- 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
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0475—Copper or alloys thereof
Abstract
Description
Die Erfindung betrifft eine Kraftstoffpumpe gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a fuel pump according to the preamble of claim 1.
Eine Kraftstoffpumpe der eingangsgenannten Art ist z. B. aus
Kraftstoffpumpen verfügen über einen Pumpenzylinder, in dem ein Pumpenkolben bewegbar gelagert bzw. geführt ist. Der Pumpenkolben wird über einen oder mehrere Nocken im Pumpenzylinder auf und ab bewegt, wodurch Kraftstoff angesaugt und von der Kraftstoffpumpe ggf. über Zwischenspeicher (wie eine Railleitung) Verbrauchern, wie z. B. Einspritzventilen eines Kraftstoffsystems, zugeführt wird.Fuel pumps have a pump cylinder in which a pump piston is movably mounted or guided. The pump piston is moved over one or more cams in the pump cylinder up and down, whereby sucked fuel and the fuel pump, if necessary via buffer (such as a rail line) consumers such. B. injectors of a fuel system is supplied.
Weitere Details für eine Kraftstoffpumpe, insbesondere eine Hochdruckkraftstoff pumpe für elf Common-Rail-Kraftstoffsystem, sind z. B. in
Pumpenkolben aus Stahl, wie z. B. in
Der Erfindung liegt die Aufgabe zugrunde, eine Kraftstoffpumpe gemäß dem Oberbegriff des Anspruchs 1 bereitzustellen, welche mit geringerem fertigungstechnischen Aufwand herstellbar ist.The invention has for its object to provide a fuel pump according to the preamble of claim 1, which can be produced with less manufacturing effort.
Dies wird mit einer Kraftstoffpumpe gemäß Anspruch 1 erreicht. Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen definiert.This is achieved with a fuel pump according to claim 1. Further developments of the invention are defined in the dependent claims.
Gemäß der Erfindung wird bereitgestellt eine Kraftstoffpumpe, insbesondere eine Hochdruckkraftstoffpumpe für ein Common-Rail-Kraftstoffsystem, mit einem Pumpenzylinder aus Metall und einem darin bewegbar geführten Pumpenkolben aus Metall. Die erfindungsgemäße Kraftstoffpumpe zeichnet sich dadurch aus, dass der Pumpenkolben wärmebehandlungsfrei (insbesondere härtungsfrei und/oder vergütungsfrei) und beschichtungsfrei (insbesondere frei von Gleitbeschichtungen und/oder Härtungsbeschichtungen) ausgebildet ist.According to the invention, there is provided a fuel pump, in particular a high pressure fuel pump for a common rail fuel system, comprising a metal pump cylinder and a metal pump piston movably guided therein. The fuel pump according to the invention is characterized in that the pump piston is heat-treatment-free (in particular free of curing and / or free of charge) and coating-free (in particular free of lubricious coatings and / or hardening coatings).
Alternativ oder zusätzlich ist der Pumpenkolben frei von auf eine Oberflächenhärteerhöhung abzielenden Oberflächenbehandlungen, wie Gasnitrieren oder Karbonieren, ausgebildet.Alternatively or additionally, the pump piston is free of surface treatments aimed at increasing the surface hardness, such as gas nitriding or carbonating.
Durch den Verzicht auf jegliche Wärmebehandlung und Beschichtung und/oder jegliche auf eine Oberflächenhärteerhöhung abzielende Oberflächenbehandlung wird der fertigungstechnische Aufwand zur Herstellung des Pumpenkolbens und damit der Kraftstoffpumpe erheblich reduziert.By dispensing with any heat treatment and coating and / or any surface treatment aimed at increasing the surface hardness of the production engineering effort for the production of the pump piston and thus the fuel pump is significantly reduced.
Der Pumpenkolben ist zumindest teilweise, jedoch bevorzugt vollständig, aus einem Lagerwerkstoff hergestellt.The pump piston is at least partially, but preferably completely, made of a bearing material.
Ein Lagerwerkstoff vermeidet aufgrund größerer Duktilität als Stahl den eingangs beschriebenen Nachteil, dass durch Verformung und/oder durch Vorschädigung (Mikrorisse) Risse bzw. Brüche auftreten können, und weist neben einer für den Anwendungsfall einer Kraftstoffpumpe ausreichenden Festigkeit außerdem bessere Notlaufeigenschaften als Stahl auf. Damit vereinigt ein Lagerwerkstoff die gewünschten Funktionalitäten von Beschichtung und ausreichender Festigkeit in sich und erfüllt diese – ohne Anwendung von Wärmebehandlung und Beschichtung – sogar noch besser. Demgemäß weist eine derart ausgebildet Kraftstoffpumpe zusätzlich oder alternativ zum Vorteil des geringeren fertigungstechnischen Aufwands die Vorteile einer geringeren Ausfallwahrscheinlichkeit bzw. höheren Lebensdauer und besserer Notlaufeigenschaften auf.A bearing material avoids due to greater ductility than steel the disadvantage described above that cracks or fractures may occur by deformation and / or by previous damage (microcracks), and in addition to sufficient for the application of a fuel pump strength also better emergency running properties than steel. Thus, a bearing material combines the desired functionality of coating and sufficient strength in itself and meets them - without application of heat treatment and coating - even better. Accordingly, a fuel pump designed in this way additionally or alternatively to the advantage of lower production-related expense, the advantages of a lower probability of failure or higher life and better emergency running properties.
Gemäß der Erfindung ist der Lagerwerkstoff von einer Legierung, d. h. einer Mischung zweier Metalle, gebildet, wobei der Lagerwerkstoff von einer Knetlegierung oder von einer Kupferlegierung gebildet ist.According to the invention, the bearing material is of an alloy, i. H. a mixture of two metals, wherein the bearing material is formed by a wrought alloy or a copper alloy.
Eine Knetlegierung weist vorteilhaft eine durch deren Herstellung bedingte noch höhere Duktilität auf, womit Risse bzw. Brüche noch sicherer verhindert werden können.A wrought alloy advantageously has a higher ductility due to its production, whereby cracks or fractures can be prevented even more reliably.
Im Falle dass der Lagerwerkstoff von einer Kupferlegierung gebildet ist, ist der Lagerwerkstoff bevorzugt von einer Kupfer-Aluminium-Legierung oder von einer Kupfer-Zink-Legierung gebildet.In the case that the bearing material is formed of a copper alloy, the bearing material is preferably formed of a copper-aluminum alloy or a copper-zinc alloy.
Kupfer-Aluminium-Legierungen und Kupfer-Zink-Legierungen weisen neben ausreichenden Notlaufeigenschaften eine relativ hohe Festigkeit auf, was sie für hohe Belastungen besonders geeignet macht.Copper-aluminum alloys and copper-zinc alloys have, in addition to sufficient emergency running properties, a relatively high strength, which makes them particularly suitable for high loads.
Weitere Lagerwerkstoffe im Sinne der Erfindung könnten (je nach gewünschter Festigkeit und gewünschten Notlaufeigenschaften) z. B. Bleigusslegierungen, Zinngusslegierungen, Kupfer-Blei-Zinn-Gusslegierungen und Gusseisen mit Lamellengraphit sein.Other bearing materials in the context of the invention could (depending on the desired strength and desired emergency running properties) z. B. leaded alloys, tin casting alloys, copper-lead-tin casting alloys and cast iron with lamellar graphite.
Die Erfindung erstreckt sich ausdrücklich auch auf solche Ausführungsformen, welche nicht durch Merkmalskombinationen aus expliziten Rückbezügen der Ansprüche gegeben sind, womit die offenbarten Merkmale der Erfindung – soweit dies technisch sinnvoll ist – beliebig miteinander kombiniert sein können.The invention expressly extends to such embodiments which are not are given by combinations of features of explicit back references of the claims, with which the disclosed features of the invention - as far as is technically feasible - can be combined with each other.
Im Folgenden wird die Erfindung anhand bevorzugter Ausführungsformen und unter Bezugnahme auf die beigefügte Figur beschrieben.In the following the invention will be described with reference to preferred embodiments and with reference to the accompanying figure.
Wie in
Der Pumpenkolben
Weitere beispielhafte Details hinsichtlich der Steuerung des Einsaugens und des Förderns von Kraftstoff sowie mechanischer Ausgestaltungen der Kraftstoffpumpe
Gemäß der Erfindung ist der Pumpenzylinder
Alternativ oder zusätzlich ist der Pumpenkolben
Durch den Verzicht auf jegliche Wärmebehandlung und Beschichtung und/oder jegliche auf eine Oberflächenhärteerhöhung abzielende Oberflächenbehandlung ist der fertigungstechnische Aufwand zur Herstellung des Pumpenkolbens
Zusätzlich ist der Pumpenkolben
Der Lagerwerkstoff weist eine relativ hohe Duktilität auf und vermeidet daher durch Verformung und/oder durch Vorschädigung (Mikrorisse) auftretende Risse oder Brüche am direkt oder über eine drehbar gelagerte Rolle (nicht gezeigt) und ggf. andere Zwischenglieder mit dem Nocken
Der Lagerwerkstoff weist außerdem – neben einer für den Anwendungsfall der Kraftstoffpumpe
Der Lagerwerkstoff vereinigt die gewünschten Funktionalitäten von Beschichtung und ausreichender Festigkeit in sich und erfüllt diese ohne Anwendung von Wärmebehandlung und Beschichtung, welche höheren fertigungstechnischen Aufwand erfordern und ggf. Risse oder Brüche hervorrufen würden.The bearing material combines the desired functionalities of coating and sufficient strength in itself and meets them without the application of heat treatment and coating, which require higher manufacturing effort and possibly cause cracks or fractures.
Demgemäß weist die erfindungsgemäße Kraftstoffpumpe
Gemäß der Erfindung ist der Lagerwerkstoff des Pumpenkolbens
Gemäß einer Ausführungsform der Erfindung ist der Lagerwerkstoff des Pumpenkolbens
Weitere für den Pumpenkolben
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- KraftstoffpumpeFuel pump
- 1010
- Pumpenzylinderpump cylinder
- 1111
- Ausnehmungrecess
- 11a11a
- Bereich/PumpenraumSection / pump room
- 1212
- KraftstoffpassageFuel passage
- 2020
- Pumpenkolbenpump pistons
- 2121
- Stempelfußprop foot
- 2222
- Kolbenkopfpiston head
- 3030
- Wellewave
- 3131
- Nockencam
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 60202042 T2 [0002, 0005] DE 60202042 T2 [0002, 0005]
- DE 10345061 A1 [0004, 0023] DE 10345061 A1 [0004, 0023]
Claims (3)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011005656A DE102011005656A1 (en) | 2011-03-16 | 2011-03-16 | Fuel pump i.e. high pressure fuel pump, for common-rail fuel system, has metallic pump piston made of heat-treatment-free and coating-free bearing material, where bearing material is made by copper alloy, and wrought alloy |
JP2012056903A JP5694217B2 (en) | 2011-03-16 | 2012-03-14 | Fuel pump |
FI20125284A FI125668B (en) | 2011-03-16 | 2012-03-14 | Fuel pump |
KR1020120026664A KR20120106626A (en) | 2011-03-16 | 2012-03-15 | Fuel pump |
CN201210146248XA CN102678416A (en) | 2011-03-16 | 2012-03-16 | Fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011005656A DE102011005656A1 (en) | 2011-03-16 | 2011-03-16 | Fuel pump i.e. high pressure fuel pump, for common-rail fuel system, has metallic pump piston made of heat-treatment-free and coating-free bearing material, where bearing material is made by copper alloy, and wrought alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011005656A1 true DE102011005656A1 (en) | 2012-09-20 |
Family
ID=46756653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011005656A Ceased DE102011005656A1 (en) | 2011-03-16 | 2011-03-16 | Fuel pump i.e. high pressure fuel pump, for common-rail fuel system, has metallic pump piston made of heat-treatment-free and coating-free bearing material, where bearing material is made by copper alloy, and wrought alloy |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5694217B2 (en) |
KR (1) | KR20120106626A (en) |
CN (1) | CN102678416A (en) |
DE (1) | DE102011005656A1 (en) |
FI (1) | FI125668B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2444504A1 (en) * | 1973-09-28 | 1975-04-03 | Secmafer Sa | PISTON OF A HIGH PRESSURE HYDRAULIC MACHINE |
DE10345061A1 (en) | 2003-09-26 | 2005-04-14 | Robert Bosch Gmbh | Plunger assembly for a high pressure pump and high pressure pump with at least one plunger assembly |
DE60202042T2 (en) | 2001-11-12 | 2006-03-02 | Hitachi, Ltd. | Fuel pump and direct injection internal combustion engine |
US7748359B2 (en) * | 2006-06-30 | 2010-07-06 | Caterpillar Inc. | Tappet assembly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3322258B2 (en) * | 1996-09-09 | 2002-09-09 | 東陶機器株式会社 | Copper alloy and method for producing the same |
KR20020096343A (en) * | 2001-06-19 | 2002-12-31 | 현대자동차주식회사 | Surface treatment method of gasoline engine pistons |
DE102004056519B4 (en) * | 2004-11-24 | 2017-07-13 | Mahle Gmbh | Method for producing a piston for an internal combustion engine |
JP5187255B2 (en) * | 2009-03-27 | 2013-04-24 | 株式会社デンソー | High pressure pump |
-
2011
- 2011-03-16 DE DE102011005656A patent/DE102011005656A1/en not_active Ceased
-
2012
- 2012-03-14 JP JP2012056903A patent/JP5694217B2/en active Active
- 2012-03-14 FI FI20125284A patent/FI125668B/en active IP Right Grant
- 2012-03-15 KR KR1020120026664A patent/KR20120106626A/en active Search and Examination
- 2012-03-16 CN CN201210146248XA patent/CN102678416A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2444504A1 (en) * | 1973-09-28 | 1975-04-03 | Secmafer Sa | PISTON OF A HIGH PRESSURE HYDRAULIC MACHINE |
DE60202042T2 (en) | 2001-11-12 | 2006-03-02 | Hitachi, Ltd. | Fuel pump and direct injection internal combustion engine |
DE10345061A1 (en) | 2003-09-26 | 2005-04-14 | Robert Bosch Gmbh | Plunger assembly for a high pressure pump and high pressure pump with at least one plunger assembly |
US7748359B2 (en) * | 2006-06-30 | 2010-07-06 | Caterpillar Inc. | Tappet assembly |
Also Published As
Publication number | Publication date |
---|---|
KR20120106626A (en) | 2012-09-26 |
FI125668B (en) | 2015-12-31 |
JP2012193734A (en) | 2012-10-11 |
FI20125284L (en) | 2012-09-17 |
JP5694217B2 (en) | 2015-04-01 |
CN102678416A (en) | 2012-09-19 |
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