EP3176393B1 - Nockenfolgerrollenvorrichtung mit abstandshalter und erhöhter verschleissfestigkeit - Google Patents
Nockenfolgerrollenvorrichtung mit abstandshalter und erhöhter verschleissfestigkeit Download PDFInfo
- Publication number
- EP3176393B1 EP3176393B1 EP15306921.6A EP15306921A EP3176393B1 EP 3176393 B1 EP3176393 B1 EP 3176393B1 EP 15306921 A EP15306921 A EP 15306921A EP 3176393 B1 EP3176393 B1 EP 3176393B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacer
- ring
- insert
- pin
- wear resistance
- 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
- 125000006850 spacer group Chemical group 0.000 title claims description 41
- 239000000463 material Substances 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F01L1/146—Push-rods
-
- 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
- F01L1/16—Silencing impact; Reducing wear
-
- 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
- F02M59/102—Mechanical drive, e.g. tappets or 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
- F01L2301/00—Using particular materials
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
Definitions
- the present invention relates to the field of cam follower roller devices used in automotive or industrial applications.
- cam follower roller device in a fuel injection pump intended for an internal combustion engine, in particular of a motor vehicle.
- Another advantageous application of the invention is the use of the device in a rocker system intended for controlling valves of an internal combustion piston engine.
- Such a cam follower roller device generally comprises an outer tappet body, a pin mounted on the tappet body and a roller movable in rotation relative to the pin around its axis.
- the roller collaborates with a cam synchronized with the internal combustion engine camshaft or crankshaft.
- the rotation of the camshaft, or crankshaft leads to a periodic displacement of a piston of the pump that rests against the tappet body, to allow fuel to be delivered.
- EP-A1-2 853 738 describes a device comprising such an insert supporting the pin while the tappet body supports said insert.
- a cam follower roller device is generally delivered as a preassembled unit to a motor vehicle manufacturer or system supplier.
- the axial length of the device may be adapted according to the application and the specification of the manufacturers or system suppliers. It is known to design a forged tappet body with adapted given dimensions for each application and for each manufacturer or system supplier.
- One aim of the present invention is to provide a cam follower roller device with an adaptive and cost-saving design.
- the cam follower roller device comprises a tappet body extending along an axis, an insert mounted in the tappet body, a pin mounted at least on said insert, and a roller mounted on said pin.
- the device comprises a spacer provided with a main body extending along an axis, mounted into the tappet body and axially protruding outwards relative to said body.
- the device further comprises at least one anti-friction and/or wear resistance ring mounted on an outer surface of the main body of the spacer, or on an outer surface of the tappet body, and radially protruding outwards relative to said outer surface.
- Said anti-friction and/or wear resistance ring is mounted freely tiltable with respect to said body so as to allow an angular tilting of an axis of the said ring relative to the axis of said body.
- the tappet body can have a standardized design for each application and for each manufacturer or system supplier.
- the length of the spacer is the only feature of the device to be adapted for the different applications and manufacturers or system suppliers. This leads to a reduction of the manufacturing costs.
- said ring since said ring is freely movable angularly relative to the associated body, said ring may handle misalignment between the axis of said body and the axis of the housing in operation. Said ring acts as a self-aligning ring in order that the axis of said ring may be coaxial to the axis of the housing. Accordingly, in operation, the pressure contact between the roller of the device and the cam is reduced.
- said anti-friction and/or wear resistance ring is mounted into a groove formed on the outer surface of said body.
- said outer surface may be deprived of such groove.
- said anti-friction and/or wear resistance ring has an annular shape.
- Said ring may be made of metal or plastic material.
- the device comprises at least two anti-friction and/or wear resistance rings, one of the said rings being mounted on the main body of the spacer while the other ring being mounted on the tappet body.
- the density of the material of the main body of said spacer may advantageously be smaller than that of the material of said tappet body. Accordingly, the weight of the device can be limited.
- the device may further comprise an insert mounted in the tappet body, the pin being mounted at least on said insert.
- the main body of the spacer may be mounted axially against the insert on the side opposite to the pin and the roller.
- the insert comprises a central core and at least two side tabs each comprising a receiving housing into which is mounted an end of the pin.
- the body of the spacer may be mounted into axial contact with the central core of the insert.
- the tappet body may comprise axial blocking means for maintaining the pin into the receiving housings.
- the pin is mounted on the tappet body.
- a cam follower roller device 10 comprises an outer tappet housing or body 12 extending along an axis 12a, a shaft or pin 14 extending along an axis 14a perpendicular to the axis 12a, a roller 16 mounted on the pin and movable in rotation relative to said pin, and a stroke-transmission part or insert 18 mounted in said tappet body.
- the insert 18 supports the pin 14.
- the roller 16 is directly mounted on the pin 14.
- a rolling bearing or a plain bearing may be radially interposed.
- the device 10 further comprises a spacer 20 mounted axially against the insert 18 on the side opposite to the roller 16, and an outer anti-friction and/or wear resistance ring 22 mounted on said spacer.
- the tappet body 12 is made in one part.
- the body 12 has a tubular form.
- the tappet body 12 comprises a cylindrical axial outer surface 12b and a cylindrical axial inner surface or bore (not referenced). Said inner bore delimits a cavity 23 inside which are located the insert 18 and the pin 14.
- the roller 16 axially protrudes outwards with respect to an upper edge 12c of the tappet body 12.
- the tappet body 12 is deprived of any through-hole extending between the outer surface 12a and the bore for mounting the pin 14.
- the insert 18 is made in one part.
- the insert 18 may preferably be made of metal, by example steel, or be made of plastic material.
- the insert 18 is distinct from the tappet body 12. In the disclosed example, the insert 18 is entirely housed inside the cavity 23 delimited by the tappet body 12.
- the insert 18 comprises a base part or a central core 24 and two side parts or lateral tabs 26, 28 extending from said core and facing each other.
- the tabs 26, 28 of the insert extend from the core 24 towards the upper edge 12c of the tappet body.
- the insert 18 has in cross-section a U-shape.
- the roller 16 is disposed between the tabs 26, 28.
- a concave recess 30, 32 is provided at the free end of each tab to receive the pin 14. Both recesses 30, 32 extend through the tabs 26, 28 along the axis 14a and have the same diameter.
- Recesses 30, 32 form receiving housings adapted to receive the ends of the pin 14. Each end of said pin 14 is supported by one of the two tabs 26, 28. The pin 14 is supported by the insert 18.
- the tappet body 12 further comprises means 34, 36 for axially blocking the pin 14 and the roller 16 relative to said body.
- the axial blocking means 34, 36 block the translation of pin 14 in a direction from a lower edge 12d of the tappet towards the upper edge 12c.
- the axial blocking means 34, 36 are integrally formed with the tappet body 12. In the illustrated example, these means 34, 36 are provided on the bore of the tappet body at the upper edge 12c.
- the axial blocking means 34, 36 delimit receiving housings each facing one of the receiving housings 30, 32 of the insert to delimit together cylindrical bores for the ends of the pin 14.
- the tappet body 12 is made from synthetic material, such as polyamide for example.
- the tappet body 12 is advantageously formed by moulding.
- the tappet body 12 may be made of metal, for example in an economic way by cutting, stamping and folding.
- the tappet body 12 also comprises two pairs of two axial ribs 40, 42 provided on the bore of said body and which radially protrude inwards.
- the ribs 40, respectively 42 extend axially the axial blocking means 34, respectively 36.
- the ribs 40 are symmetrical to the ribs 42 with respect to a transverse axial plane passing through the centre of the roller 16.
- the ribs 40, 42 of each pair are spaced apart one relative to another to delimit a space into which is located one of the tabs 26, 28 of the insert. Accordingly, each tab 26, 28 is located circumferentially between the two ribs 40, 42 of one pair.
- Each tab 26, 28 abuts in the circumferential direction against one of the ribs 40, 42 of one pair on one side, and abuts against the other rib of said pair on the other side.
- the ribs 40, 42 cooperate with the tabs 26, 28 to prevent the insert 18 from moving in the circumferential direction relative to the tappet body 12.
- the spacer 20 axially bears against the insert 18 on the side opposite to the roller 16 and the pin 14.
- the spacer 20 axially bears against the core 24 of the insert.
- the spacer 20 extends into the cavity 23 delimited by the tappet body 12 and protrudes axially outwards with respect to the lower edge 12d of said body.
- the lower edge 12d and the upper edge 12c delimit axially the tappet body 12.
- the spacer 20 comprises a main body 44 extending along an axis 44a which is coaxial with the axis 12a of the tappet body.
- the main body 44 is provided with an upper frontal radial surface 44b in axial contact with the insert 18, and more precisely with the core 24 of said insert.
- the upper radial surface 44b is mounted axially against a lower surface of the core 24.
- the body 44 also comprises a lower radial frontal surface 44c intended to come into contact with a movable element (not shown), such as a piston of a fuel injection pump.
- the body 44 has substantially a cylindrical form.
- the body 44 may have different shape, for example a U-shape.
- the main body 44 of the spacer 20 may preferably be made of plastic material, for instance PA 6.6, or be made of metallic material such as aluminium.
- the main body 44 of the spacer 20 is formed in one part by moulding.
- the density of the material of the main body 44 is smaller than that of the material of the tappet body 12 in order to limit the weight of the device 10.
- the spacer 20 is made in one part.
- the spacer 20 may comprise two or more parts.
- the anti-friction and/or wear resistance ring 22, with an axis 22a, is mounted on a cylindrical outer surface 44d of the main body of the spacer.
- the material of the ring 22 is adapted to improve friction properties and/or wear-resistance of the device 10 which is intended to slide back and forth into a housing (not represented), such as a pump housing.
- the ring 22 may be made of a material harder than that of the housing.
- the ring 22 may be made of metal, by example a hardened steel.
- it is also possible to provide a coating on an outer surface of the ring 22 such as coatings with dry-lubricants, nitrocarburation, tungsten carbide, diamond-like carbon, black oxide or tungsten disulfide.
- the ring 22 may be made of plastic material such as PEEK, PEAK or PPA and may be reinforced with fibers. In a preferred embodiment, the ring 22 is not reinforced with fibers.
- An anti-friction coating, such as PTFE or MoS2, may also be provided on the plastic ring 22.
- the ring 22 is mounted on the main body 44 of the spacer where the friction between its outer surface 44d and the housing is the highest.
- the ring 22 is mounted on a flange 44e provided on the outer surface 44d.
- the ring 22 radially protrudes outwards with respect to the outer surface 44d.
- the ring 22 is mounted into an annular groove 46 formed on the outer surface 44d.
- the ring 22 has an annular shape.
- the ring 22 has a cylindrical form.
- the ring 22 may be open in the circumferential direction for easy mounting.
- the ring 22 is mounted freely tiltable relative to the main body 44 of the spacer.
- a radial gap 48 is provided between the ring 22 and the groove 46.
- the gap 48 is provided between a bore of the ring 22 and the bottom of the outer surface 44d.
- the ring 22 When the device 10 is mounted into the associated housing, the ring 22 is able to move angularly relative to the main body 44 of the spacer to accommodate angular misalignment between the axis of the housing and the axis 44a of the main body of the spacer. With a contact between the housing and the ring 22, said ring may tilt angularly relative to the main body 44a of the spacer so that its axis 22a is aligned with the axis of the housing. Such a tilting may be obtained since the radial gap 48 is provided between the ring 22 and the outer surface 44d.
- the device comprises only one anti-friction and/or wear resistance ring 22 mounted on the body 44 of the spacer.
- the device 10 further comprises an additional outer anti-friction and/or wear resistance ring 50 mounted on the body 44 of the spacer.
- the ring 50 with an axis 50a, is mounted on the outer surface 44d of the main body of the spacer and is freely tiltable so as to allow an angular tilting of the axis 50a relative to the axis 44a of the main body.
- the ring 50 radially protrudes outwards with respect to the outer surface 44d of the main body 44.
- the ring 50 is mounted into an annular groove 50 formed on the outer surface 44d.
- a radial gap 54 is provided between the ring 50 and the groove 52.
- the gap 54 is provided between a bore of the ring 50 and the bottom of the groove 52.
- the ring 50 is mounted on a flange 44f provided on the outer surface 44d near to the tappet body.
- the anti-friction and/or wear resistance rings 22, 50 of the device are mounted on the spacer 20.
- the device 10 comprises outer anti-friction and/or wear resistance rings 56, 58 mounted on the tappet body 12.
- Each ring 56, 58, with an axis 56a, 58a, is mounted on the outer surface 12b of the tappet body.
- the rings 56, 58 are mounted on the tappet body 12 where the friction between the outer surface 12b of the said body and the associated housing is the highest.
- the ring 56 is mounted near to the lower edge 12d of the tappet body 12 while the ring 58 is mounted near to the upper edge 12c.
- each ring 56, 58 radially protrudes outwards with respect to the outer surface 12b of the tappet body.
- each ring 56, 58 is mounted into an annular groove 60, 62 formed on the outer surface 12b.
- a radial gap 64, respectively 66, is provided between the ring 56, respectively 58, and the groove 60, respectively 62. Said gap is provided between a bore of the ring and the bottom of the associated groove.
- each ring 56, 58 is freely tiltable relative to the tappet body 12 so as to allow an angular tilting of the axis 56a, 58a relative to the axis 12a of the tappet body.
- a device provided with at least one anti-friction and/or wear resistance ring disposed on the tappet body 12 and at least one anti-friction and/or wear resistance disposed on the main body 44 of the spacer.
- the spacer is mounted in simple axial contact with the insert without any fixation.
- the spacer may comprise retaining means cooperating with the insert, or with the tappet body, for fixing said spacer to said insert, or to said tappet body, in order to obtain a unitary assembly.
- the invention has been illustrated on the basis of a cam follower roller device comprising an insert mounted into the tappet body and supporting the pin.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Claims (11)
- Nockenfolgerollenvorrichtung, aufweisend einen Stößelkörper (12), der sich entlang einer Achse erstreckt, einen Stift (14), der in dem Stößelkörper angebracht ist, und eine Rolle (16), die an dem Stift angebracht ist, wobei die Vorrichtung ferner einen Abstandshalter (20) aufweist, der mit einem sich entlang einer Achse erstreckenden Hauptkörper (44) versehen ist, in dem Stößelkörper (12) angebracht ist, und relativ zu dem Körper axial nach außen hervorsteht, wobei die Vorrichtung ferner mindestens einen Antireibungs- und/oder Verschleißschutzring (22, 56) aufweist, der auf einer Außenseite des Hauptkörpers (44) des Abstandshalters oder auf einer Außenseite des Stößelkörpers (12) angebracht ist und relativ zu der Außenseite radial nach außen hervorsteht, wobei der Antireibungs-und/oder Verschleißschutzring (22, 56) relativ zu dem Körper (12, 44) frei kippbar angebracht ist, um eine winkelmäßige Neigung einer Achse des Rings relativ zu der Achse des Körpers zu ermöglichen.
- Vorrichtung nach Anspruch 1, wobei der Antireibungs- und/oder Verschleißschutzring (22, 56) in einer Nut (46, 60) angebracht ist, die an der Außenfläche des Körpers (20, 44) gebildet ist.
- Vorrichtung nach Anspruch 1 oder 2, wobei der Antireibungs- und/oder Verschleißschutzring (22, 56) eine Ringform aufweist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, wobei der Antireibungs- und/oder Verschleißschutzring (22, 56) aus Metall oder Kunststoffmaterial hergestellt ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Vorrichtung mindestens zwei Antireibungs- und/oder Verschleißschutzringe (22, 56) aufweist, wobei einer der Ringe am Hauptkörper (44) des Abstandshalters angebracht ist, während der andere Ring am Stößelkörper (12) angebracht ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Dichte des Materials des Hauptkörpers (44) des Abstandshalters kleiner ist als die des Materials des Stößelkörpers (12).
- Vorrichtung nach einem der vorhergehenden Ansprüche, ferner aufweisend einen Einsatz (18), der in dem Stößelkörper (12) angebracht ist, wobei der Stift (14) zumindest an dem Einsatz angebracht ist.
- Vorrichtung nach Anspruch 7, wobei der Hauptkörper (44) des Abstandshalters axial gegenüber dem Einsatz (18) auf der dem Stift (14) und der Rolle (16) gegenüberliegenden Seite angebracht ist.
- Vorrichtung nach Anspruch 7 oder 8, wobei der Einsatz (18) einen zentralen Kern (24) und mindestens zwei Seitenlappen (26, 28) aufweist, von denen jeder ein Aufnahmegehäuse (30, 32) aufweist, in dem ein Ende des Stifts (14) angebracht ist.
- Vorrichtung nach Anspruch 9, wobei der Hauptkörper (44) des Abstandshalters in axialem Kontakt mit dem zentralen Kern (24) des Einsatzes angebracht ist.
- Vorrichtung nach Anspruch 9 oder 10, wobei der Stößelkörper (12) axiale Blockiermittel (34, 36) zum Halten des Stiftes (14) in den Aufnahmegehäusen (30, 32) aufweist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15306921.6A EP3176393B1 (de) | 2015-12-03 | 2015-12-03 | Nockenfolgerrollenvorrichtung mit abstandshalter und erhöhter verschleissfestigkeit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15306921.6A EP3176393B1 (de) | 2015-12-03 | 2015-12-03 | Nockenfolgerrollenvorrichtung mit abstandshalter und erhöhter verschleissfestigkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3176393A1 EP3176393A1 (de) | 2017-06-07 |
EP3176393B1 true EP3176393B1 (de) | 2018-06-13 |
Family
ID=54782646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15306921.6A Active EP3176393B1 (de) | 2015-12-03 | 2015-12-03 | Nockenfolgerrollenvorrichtung mit abstandshalter und erhöhter verschleissfestigkeit |
Country Status (1)
Country | Link |
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EP (1) | EP3176393B1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3173591B1 (de) * | 2015-11-24 | 2018-07-11 | Aktiebolaget SKF | Nockenfolgerrollenvorrichtung mit abstandsstück |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58185913A (ja) * | 1982-04-24 | 1983-10-29 | Yamaha Motor Co Ltd | 内燃機関の動弁装置 |
DE4117425C1 (de) * | 1991-05-28 | 1992-07-30 | Fa. Carl Freudenberg, 6940 Weinheim, De | |
EP2853738B1 (de) | 2013-09-27 | 2016-04-27 | Aktiebolaget SKF | Mechanisches System, Einspritzpumpe und Ventilaktor mit einem solchen mechanischen System und Herstellungsverfahren |
EP2853698B1 (de) * | 2013-09-27 | 2016-06-01 | Aktiebolaget SKF | Ventilstössel, Einspritzpumpe und Ventilaktor mit einem solchen Ventilstössel und Herstellungsverfahren |
-
2015
- 2015-12-03 EP EP15306921.6A patent/EP3176393B1/de active Active
Non-Patent Citations (1)
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