EP1600609B1 - Poussoir de soupape pour moteur à combustion interne - Google Patents

Poussoir de soupape pour moteur à combustion interne Download PDF

Info

Publication number
EP1600609B1
EP1600609B1 EP05009745A EP05009745A EP1600609B1 EP 1600609 B1 EP1600609 B1 EP 1600609B1 EP 05009745 A EP05009745 A EP 05009745A EP 05009745 A EP05009745 A EP 05009745A EP 1600609 B1 EP1600609 B1 EP 1600609B1
Authority
EP
European Patent Office
Prior art keywords
face
web
bucket tappet
head
cam
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.)
Not-in-force
Application number
EP05009745A
Other languages
German (de)
English (en)
Other versions
EP1600609A2 (fr
EP1600609A3 (fr
Inventor
Lutz Dipl.-Ing. Kirbach
Robert Dipl.-Ing. Kamm
Arndt Dipl.-Ing. Ihlemann
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP1600609A2 publication Critical patent/EP1600609A2/fr
Publication of EP1600609A3 publication Critical patent/EP1600609A3/fr
Application granted granted Critical
Publication of EP1600609B1 publication Critical patent/EP1600609B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01L1/143—Tappets; Push rods for use with overhead camshafts

Definitions

  • the invention relates to a tappet of a valve train of an internal combustion engine, with a sealed on one side by a bottom hollow cylindrical shirt, which bottom on its outer face a stop surface for a cam and on its inner face a centric system for a gas exchange valve, wherein the contact surface a seen in the direction of travel of the cam has cylindrical course and the plunger is provided to its orientation with respect to the cam with means for preventing rotation relative to its surrounding structure.
  • Such a tappet is considered from the considered generic EP 1 260 679 A3 previously known.
  • This tappet also has a hollow cylindrical shirt with a cylindrically curved bottom in the cam direction. The latter is here thin-walled as the shirt shown. An inner face substantially follows an outer face of the floor. It can be seen that the shirt has only a shortened leadership height and, starting from an upper end of the shirt, two opposing concave side walls are provided, which converge towards one another and form a narrow base for a cam contact at the end.
  • the plunger is not suitable for mass production because of its complicated geometry. In addition, he has only an insufficient guide length for inclusion in the surrounding construction.
  • the cam is also provided only a relatively narrow start-up area on the outside of the floor, so that here is attributable to premature wear or costly wear protection measures must come to fruition. Possibly. For example, relatively high wall thicknesses must be used to meet stiffness requirements.
  • the object of the invention is therefore to provide a bucket tappet of the known type, in which the cited disadvantages are eliminated by simple means.
  • a bucket tappet is to be created, which can be easily and inexpensively mass produced with excellent rigidity.
  • the inner end face has a deviating from the outer end surface of the bottom course and a radially extending, planar web, between the edges of the system is symmetrically positioned, wherein each edge of a roof like a beveled away from the ground away , consisting of solid material leg extends to an inner side of the shirt, which legs are axially symmetric and the web is orthogonal to the cylindrical extension of the contact surface.
  • a contribution in the direction of increasing stiffness is also achieved in that the web is orthogonal to the cylindrical extent of the outer end face of the soil. Possibly. However, this web may also be parallel or generally only angularly offset from the cylindrical extension of the outer end face of the soil.
  • Due to the cylindrical course can be reduced with guaranteed emigration area for the cam on the outer face on the ground, the diameter of the bucket tappet.
  • anti-rotation is provided according to a subclaim, for example, arranged in a shirt of the tappet roller needle, which projects beyond the shirt radially outward and thus runs during installation of the tappet in a longitudinal groove of a receiving bore in the cylinder head or a similar surrounding construction.
  • the bucket tappet can also be designed self-centering.
  • the system for the gas exchange valve on the web as a truncated cone-like elevation.
  • a defined contact surface which if necessary can also be designed to be wear-resistant, is created.
  • the system can be kept variable in height for the assembly process at the engine manufacturer.
  • the installation is manufactured together or alone with the entire inner end face of the floor by means of a non-cutting production process such as embossing, embossing extrusion, forging or the like.
  • the roof-like bevelled legs can be formed in addition to their training of "solid material” as a thin-walled and projecting from the inner end face of the soil ribs. Due to this measure, another contribution may be made in the direction of lightweight construction and lowering of the oscillating valve train masses.
  • roof-like tapered legs are proposed. These may, for example, run concavely or convexly curved or have a substantially planar extension. The skilled person will find at this point by the familiar calculation and design methods, the appropriate shape of the legs for his application.
  • the figures disclose a bucket tappet 1 of a valve train of an internal combustion engine.
  • This consists of a closed on one side by a bottom 2 hollow cylindrical shirt 3.
  • the bottom 2 has an outer end face 4.
  • This is designed as a contact surface 5 for a cam, not shown.
  • the contact surface 5 should have a cylindrical course seen in the direction of emigration A of the cam.
  • This can be, for example, a roller needle pressed into the recess 14, which protrudes slightly radially beyond the shirt 3 and, when the tappet 1 is installed, extends into its corresponding receptacle in the cylinder head in a longitudinal groove applied there.
  • an inner end face 6 of the bottom 2 has a significantly different from the outer face 4 course.
  • a radially extending, flat web 8 is applied to the inner end face 6.
  • a system 7 is provided for a gas exchange valve. This can, as in particular from the FIGS. 3, 4 emerges, for example, be shown as a truncated cone-like elevation on the web 8. It must be mentioned that the plant 7 is advantageously generated in a chipless production process such as embossing.
  • each of the abovementioned edges 9, 10 is each a leg-like beveled from the bottom 2 away leg 11, 12 to an inner side 13 of the shirt 3.
  • these are a flat roof shape, as in FIG. 4 revealed, have.
  • the entire inner end face 6 of the base 2 is produced with the web 8 in one or more work steps in a non-cutting production method, such as embossing or extruding, or the like. Possibly. but can also be thought of a machining.
  • the legs 11, 12, starting from their edges 9, 10, in the direction of the shirt 3 can also be shown tapering to the bottom 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Claims (7)

  1. Poussoir à coupelle (1) d'une commande de soupape d'un moteur à combustion interne, comprenant une chemise cylindrique creuse (3) fermée d'un côté par un fond (2), lequel fond (2) présente, sur sa surface frontale extérieure (4), une surface de butée (5) pour une came, et sur sa surface frontale intérieure (6), un appui central (7) pour une soupape d'échange de gaz, la surface de butée (5) ayant une allure cylindrique, vue dans la direction de sortie (A) de la came, et le poussoir (1) étant pourvu, en vue de son orientation par rapport aux cames, de moyens (13a) pour la fixation en rotation par rapport à sa construction périphérique, caractérisé en ce que la surface frontale intérieure (6) a une allure s'écartant de la surface frontale extérieure (4) du fond (2), et présente une nervure plane (8) s'étendant radialement, entre les arêtes (9, 10) de laquelle est positionné, symétriquement, l'appui (7), une branche (11, 12) se composant de matériau massif s'étendant en biseau depuis chaque arête (9, 10), à la manière d'un toit depuis le fond (2), contre un côté intérieur (13) de la chemise (3), lesquelles branches (11, 12) étant opposées suivant une symétrie axiale et la nervure (8) se situant perpendiculairement à l'étendue cylindrique de la surface de butée (5).
  2. Poussoir à coupelle selon la revendication 1, caractérisé en ce que l'on prévoit comme moyen (13a) pour la fixation en rotation un corps fixé dans un évidement (14) de la chemise (3) et dépassant au moins radialement vers l'extérieur de celle-ci, comme une aiguille à rouleau, une goupille ou un élément en forme de goupille.
  3. Poussoir à coupelle selon la revendication 1, caractérisé en ce que l'appui (7) pour la soupape d'échange de gaz est réalisé sous forme de rehaussement similaire à un tronc de cône sur la nervure (8).
  4. Poussoir à coupelle selon la revendication 1, caractérisé en ce que l'appui (7) pour la soupape d'échange de gaz est réalisé sous forme de formation en forme de coupelle dans la nervure (8).
  5. Poussoir à coupelle selon la revendication 1, caractérisé en ce que la surface frontale intérieure totale (6) du fond (2) est formée avec la nervure (8) par un procédé de fabrication sans enlèvement de copeaux comme un gaufrage ou un formage par extrusion.
  6. Poussoir à coupelle selon la revendication 1, caractérisé en ce que les branches (11, 12) biseautées en forme de toit ont une courbure essentiellement concave ou convexe.
  7. Poussoir à coupelle selon la revendication 1, caractérisé en ce que les branches (11, 12) biseautées en forme de toit s'étendent essentiellement à plat.
EP05009745A 2004-05-25 2005-05-04 Poussoir de soupape pour moteur à combustion interne Not-in-force EP1600609B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025532 2004-05-25
DE102004025532A DE102004025532A1 (de) 2004-05-25 2004-05-25 Tassenstößel eines Ventiltriebs einer Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1600609A2 EP1600609A2 (fr) 2005-11-30
EP1600609A3 EP1600609A3 (fr) 2008-10-15
EP1600609B1 true EP1600609B1 (fr) 2011-10-05

Family

ID=34936122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05009745A Not-in-force EP1600609B1 (fr) 2004-05-25 2005-05-04 Poussoir de soupape pour moteur à combustion interne

Country Status (3)

Country Link
US (1) US7143731B2 (fr)
EP (1) EP1600609B1 (fr)
DE (1) DE102004025532A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009013132A1 (de) * 2009-03-13 2010-09-16 Schaeffler Technologies Gmbh & Co. Kg Stössel
DE102010032254A1 (de) * 2010-07-26 2012-01-26 Schaeffler Technologies Gmbh & Co. Kg Tassenstößel und Verfahren zu dessen Herstellung
KR101209743B1 (ko) * 2010-09-14 2012-12-07 현대자동차주식회사 가변 밸브 리프트 장치
KR101209736B1 (ko) * 2010-09-30 2012-12-07 기아자동차주식회사 가변 밸브 리프트 장치
US10119607B2 (en) 2016-04-15 2018-11-06 Koyo Bearings North America Llc Follower mechanism
US11149593B2 (en) 2019-10-03 2021-10-19 Koyo Bearings North America Llc Tappet assembly with formed anti-rotation alignment device
US11143059B2 (en) 2019-10-03 2021-10-12 Koyo Bearings North America Llc Tappet assembly with unground outer cup

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55151105A (en) * 1979-05-11 1980-11-25 Nissan Motor Co Ltd Valve driving mechanism
JPS6245911A (ja) * 1985-08-21 1987-02-27 Honda Motor Co Ltd 内燃機関の動弁機構用バルブリフタ
CA2054877C (fr) * 1990-12-14 1994-06-14 John Joseph Krieg Poussoir de soupape de masse reduite
DE4131487A1 (de) * 1991-09-21 1993-03-25 Schaeffler Waelzlager Kg Tassenstoessel
JP3151990B2 (ja) * 1993-01-25 2001-04-03 トヨタ自動車株式会社 バルブリフタ
US5904123A (en) * 1997-05-26 1999-05-18 Ina Walzlager Schaeffler Ohg Mechanical valve tappet
JP3365949B2 (ja) * 1998-01-09 2003-01-14 株式会社オティックス バルブリフタの製造方法
JP2001280105A (ja) * 2000-03-31 2001-10-10 Nittan Valve Co Ltd 内燃機関用薄肉バルブリフターの製造方法
JP2001295616A (ja) * 2000-04-14 2001-10-26 Riken Corp 内燃機関用バルブリフタ及びその製造方法
DE10123966A1 (de) * 2001-05-17 2002-11-21 Ina Schaeffler Kg Tassenstößel
JP2003027907A (ja) * 2001-07-12 2003-01-29 Yamaha Motor Co Ltd 内燃機関用バルブリフタ回転防止構造

Also Published As

Publication number Publication date
EP1600609A2 (fr) 2005-11-30
US20050263119A1 (en) 2005-12-01
EP1600609A3 (fr) 2008-10-15
US7143731B2 (en) 2006-12-05
DE102004025532A1 (de) 2005-12-15

Similar Documents

Publication Publication Date Title
EP1472438B1 (fr) Element de commutation pour un mecanisme de commande de soupapes d'un moteur a combustion interne
EP1600609B1 (fr) Poussoir de soupape pour moteur à combustion interne
DE4436952A1 (de) Schaltbarer Stößel eines Ventiltriebs einer Brennkraftmaschine
DE19781449B4 (de) Betätigungshebel für einen Ventiltrieb einer Brennkraftmaschine
DE102004036106A1 (de) Periodisch beaufschlagbarer Stößel für einen Ventil- oder Pumpentrieb
DE19915532B4 (de) Schaltbares Ventiltriebsglied
DE102005003611A1 (de) Ventiltrieb einer Brennkraftmaschine
DE102007051453A1 (de) Schaltbarer Doppelstößel
WO2011003865A1 (fr) Procédé de fabrication d'un composant de transmission de course
DE10204672A1 (de) Schaltelement für einen Ventiltrieb einer Brennkraftmaschine
DE2200131A1 (de) Ventilstoessel fuer Maschinen mit obenliegenden Nockenwellen
EP1881165A2 (fr) Commande de soupape embrayable pour un moteur à combustion interne
EP1881166A1 (fr) Mécanisme d'actionnement de soupape commutable pour un moteur à combustion interne
DE102006007376A1 (de) Hydraulisches Abstützelement
DE102007005302A1 (de) Schaltbarer Tassenstößel
DE102007008574A1 (de) Schaltbarer Tassenstößel
WO2020038513A1 (fr) Poussoir pour une pompe à carburant ou pour un mécanisme d'actionnement de soupape
DE10245301A1 (de) Schaltelement für einen Ventiltrieb einer Brennkraftmaschine
WO1998028522A1 (fr) Ensemble a poussoir pour mecanisme de distribution d'un moteur a combustion interne
DE102007008573A1 (de) Schaltbarer Tassenstößel
EP2634385A1 (fr) Arbre à came réglable
DE10204673A1 (de) Schaltelement für einen Ventiltrieb einer Brennkraftmaschine
DE19819068A1 (de) Abstützelement für einen Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
EP1260679B1 (fr) Poussoir de moteur à combustion interne
DE4227854B4 (de) Kraftstoffeinspritzpumpe für Brennkraftmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050504

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHAEFFLER KG

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20091204

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502005011948

Country of ref document: DE

Effective date: 20111215

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120531

Year of fee payment: 8

Ref country code: FR

Payment date: 20120618

Year of fee payment: 8

26N No opposition filed

Effective date: 20120706

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120530

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20120828

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE

Free format text: FORMER OWNER: INA-SCHAEFFLER KG, 91074 HERZOGENAURACH, DE

Effective date: 20111026

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20120828

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: INA-SCHAEFFLER KG, 91074 HERZOGENAURACH, DE

Effective date: 20111026

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005011948

Country of ref document: DE

Effective date: 20120706

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130504

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130504

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20140218

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20140218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130504

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005011948

Country of ref document: DE

Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE

Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE

Effective date: 20150213

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20150730

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005011948

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161201

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522