WO2006108483A1 - Element externe de poussoir cylindrique commutable - Google Patents

Element externe de poussoir cylindrique commutable Download PDF

Info

Publication number
WO2006108483A1
WO2006108483A1 PCT/EP2006/002404 EP2006002404W WO2006108483A1 WO 2006108483 A1 WO2006108483 A1 WO 2006108483A1 EP 2006002404 W EP2006002404 W EP 2006002404W WO 2006108483 A1 WO2006108483 A1 WO 2006108483A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer part
shirt
web
inlet
part according
Prior art date
Application number
PCT/EP2006/002404
Other languages
German (de)
English (en)
Inventor
Norbert Geyer
Lucia Hinkovska
Mario Kuhl
Holger PÄTZOLD
Original Assignee
Schaeffler 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 Kg filed Critical Schaeffler Kg
Priority to EP06723461.7A priority Critical patent/EP1869295B1/fr
Priority to JP2008505753A priority patent/JP2008536046A/ja
Priority to KR1020077023458A priority patent/KR101304629B1/ko
Publication of WO2006108483A1 publication Critical patent/WO2006108483A1/fr

Links

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
    • 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
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • F01L1/25—Hydraulic tappets between cam and valve stem

Definitions

  • the invention relates to an outer part of a switchable bucket tappet for a drive of an internal combustion engine, with a hollow cylindrical shirt which is receivable via its outer jacket in a guide bore of a cylinder head of the engine, which shirt is limited on its cam-side end by a bottom cam as cam surface, wherein concentric to Shirt a extending from an inner edge of the bottom in the cam-distal direction guide bushing extends with a bore for an inner part of the bucket tappet; wherein the shirt is connected to the guide bushing via a diametrically extending through the outer part and extending axially below the bottom first web in which a guide bore for at least one slider-like coupling means is applied, which first web cut laterally on a radial side of a supply hole for hydraulic means which is fed by a first channel emanating from a first inlet on the outer coat of the shirt.
  • An outer part for a switchable bucket tappet is apparent from the considered as generic forming DE 43 14 619 A1. This is, for example, produced by extrusion or machining. It can be seen that inside the Externally an additional sheet metal part for generating hydraulic fluid channels for supplying this is provided to coupling means and a hydraulic clearance compensation element. The sheet metal part must be laboriously welded to an inner jacket of the shirt of the outer part and sealed there. In order to guarantee the seal, the inner jacket also requires a subsequent machining. In sum, the production costs for the aforementioned outer part is unnecessarily high, which leads to unnecessarily high costs in mass production.
  • the object of the invention is therefore to provide an outer part of the aforementioned type, in which the cited disadvantages are eliminated.
  • this object is achieved in that the outer part is shown integrally by metal injection molding (MIM) or investment casting.
  • MIM metal injection molding
  • the outer part should preferably be created with its all components such as webs, channels, etc. by metal injection or by investment casting.
  • an inner part of the switchable tappet is to be arranged within the guide bush, which is provided with a hydraulic clearance compensation device.
  • a hydraulic clearance compensation device In order to supply this with hydraulic means, it is provided to apply to the first inlet on the outer jacket of the shirt diametrically opposite another inlet on the outer jacket of the shirt, through which hydraulic means can be passed to the play compensation element.
  • the two inlets are located radially outward on a further web, which further web preferably orthogonally intersects the first web with the guide bore in plan view.
  • the first channel extends obliquely through the cup tappet in front of the guide bore with the coupling means.
  • the further channel can be formed directly in the other web, so that it intersects the bore of the guide bushing perpendicular to the axial line of the outer part.
  • a longitudinal groove is provided at each inlet on the outer jacket of the shirt. This is to communicate with a guide bore of the cylinder head respectively cutting supply line.
  • the first and second channel are constantly under Hydraulikstoffschbeetzwegung or unnecessary longitudinal grooves in the guide bore of the cylinder head.
  • the hydraulic medium should preferably be passed directly to the at least one coupling means and the hydraulic clearance compensation element, dispensing with the storage spaces provided in the aforementioned prior art.
  • the bottom of the outer part to contact two on both sides of the guide bush extending Quigenocken.
  • a slide pack known per se or at least one slide is provided, which or which is preferably displaced in one direction via the hydraulic medium pressure and in the other direction via the force of at least one mechanical spring.
  • Figure 1 is a perspective view of an inventive outer part
  • Figure 2 shows a longitudinal section through the outer part along the other web
  • Figure 3 is another view of the outer part with a separate ring part as a spring system
  • Figure 4 shows a longitudinal section through the outer part, again in the region of the further web, obliquely from below and the
  • Figure 5 shows the apparent from Figure 3 ring part.
  • Figures 1 - 4 reveal an outer part 1 for a switchable bucket tappet, which is created with all its components, preferably by Metai Ispritzgie hybrid (MIM) or alternatively by investment casting.
  • MIM Metai Ispritzgie hybrid
  • the outer part 1 has a hollow cylindrical shirt 2, which can be arranged over its outer casing 3 in a Aufnahrnebohrung a cylinder head.
  • the shirt 2 is delimited on its cam-side end 4 by a bottom 5, which is cylindrically bulged here in the cam migration direction, as a cam contact surface.
  • an inner part of the switchable tappet can be arranged. This may or may not have a hydraulic lash adjuster.
  • Axially below the bottom 5 extends diametrically through the outer part 1, a first web 9.
  • This has a guide bore 10, in which at least one hydraulically acted upon in a direction of displacement coupling means can be arranged.
  • the guide bore 10 is cut on a radial side 11 of a first channel 13 for hydraulic fluid. This goes from a first inlet 14 on the outer jacket of the shirt. 2 from and has been shown in one piece in the MIM method with.
  • the first channel 13 runs here skewed by the outer part 1 in the direction of the guide bore 10th
  • first inlet 14 is in fluid communication with a longitudinal groove 16 on the outer jacket 3 of the shirt 2.
  • second inlet 15 has a connection with a further longitudinal groove 17.
  • Each longitudinal groove 16, 17 communicates with a supply bore for hydraulic means, which intersects the guide bore of the cylinder head for the outer part 1.
  • a second channel 14a passes directly through the further web 18, starting from the second inlet 15. It opens radially inward to the bore 8 and serves to supply the arranged in the inner part, not shown hydraulic ' play compensation element hydraulic center !.
  • the second channel 14a has preferably also been formed during the metal injection molding process.
  • a lost-motion spring or a spring assembly can be applied to this ring member 5.
  • the collar 29 serves to center the lost-motion spring.
  • Another essential part of the outer part 1 described here is that the bottom 5 is shown lowered outside a cam contact surface.
  • This "lowering" of the bottom 5 has a stiffening effect on the entire outer part 1, so that this may be thinner if necessary.
  • each inlet 14, 15 from the outer shell 3 on the bottom 5 also two tabs 23, 24 from. These "seal" the supply lines in the guide bore of the cylinder head during a plunging movement of the outer part 1 in the direction away from the cam.
  • the outer part 1 thus produced preferably by metal injection molding (MIM) with integrally molded channels 13, 14a and two webs 9, 18 crossing in an imaginary extension is relatively inexpensive compared to the prior art. It can largely be dispensed with a subsequent machining or on additional measures such as welding. It is also conceivable, of course, the inner part which is to run in the guide bush 7 to represent by metal injection molding.
  • MIM metal injection molding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un élément externe (1) de poussoir cylindrique commutable, dont les éléments principaux tels que cloisonnements (9, 18) et conduits (13, 14a) sont réalisés par moulage par injection de métal (MIM) pour former un bloc à profils terminaux rapprochés. Ainsi, la fabrication de cet élément externe (1) est peu onéreuse, un usinage postérieur par enlèvement de copeaux étant pratiquement pas nécessaire. En outre, l'utilisation d'une pièce en tôle séparée pour former les conduits pour agents hydrauliques s'avère également superflue.
PCT/EP2006/002404 2005-04-15 2006-03-16 Element externe de poussoir cylindrique commutable WO2006108483A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06723461.7A EP1869295B1 (fr) 2005-04-15 2006-03-16 Element externe de poussoir cylindrique commutable
JP2008505753A JP2008536046A (ja) 2005-04-15 2006-03-16 切換可能なバケットタペットの外側部分
KR1020077023458A KR101304629B1 (ko) 2005-04-15 2006-03-16 전환 가능한 버킷 태핏의 외부 부분

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005017409A DE102005017409A1 (de) 2005-04-15 2005-04-15 Außenteil eines schaltbaren Tassenstößels
DE102005017409.4 2005-04-15

Publications (1)

Publication Number Publication Date
WO2006108483A1 true WO2006108483A1 (fr) 2006-10-19

Family

ID=36660760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/002404 WO2006108483A1 (fr) 2005-04-15 2006-03-16 Element externe de poussoir cylindrique commutable

Country Status (6)

Country Link
EP (1) EP1869295B1 (fr)
JP (1) JP2008536046A (fr)
KR (1) KR101304629B1 (fr)
CN (1) CN100554650C (fr)
DE (1) DE102005017409A1 (fr)
WO (1) WO2006108483A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150300476A1 (en) * 2014-04-22 2015-10-22 Aktiebolaget Skf Cam follower roller device, notably for a fuel injection pump
EP2947285A1 (fr) * 2014-05-22 2015-11-25 Aktiebolaget SKF Système mécanique formant un suiveur de came ou un culbuteur, comportant une cavité interne adaptée ä contenir un bain d'huile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008062185A1 (de) * 2008-12-13 2010-06-17 Schaeffler Kg Schaltbarer Tassenstößel
DE102017109303B3 (de) 2017-05-02 2018-06-21 Schaeffler Technologies AG & Co. KG Aktor zur Verstellung des Verdichtungsverhältnisses eines Hubkolbenmotors

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245327A (en) * 1990-05-17 1992-01-02 T & N Technology Ltd Tappets
US5129372A (en) * 1989-06-24 1992-07-14 Gmb Giesserei & Maschinenbau Bodan Ag Cup tappet body for valve tappets
DE4309602A1 (de) * 1993-03-24 1994-09-29 Bayerische Motoren Werke Ag Ventilstößel für zwei Brennkraftmaschinen-Hubventile
EP0841474A1 (fr) * 1996-11-07 1998-05-13 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Dispositif de recirculation de gaz d'échappement
WO1999020417A1 (fr) * 1997-10-20 1999-04-29 James Buckley Fabrication de moulages de precision a l'aide de matieres thixotropes
US6273041B1 (en) * 1998-01-17 2001-08-14 Ina Walzlager Schaeffler Ohg Cam follower in a valve train of an internal combustion engine switchable between different lifts for at least one gas-exchange valve
DE10212327A1 (de) * 2001-09-11 2003-03-27 Porsche Ag Ventiltrieb für eine Brennkraftmaschine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090364A (en) * 1990-12-14 1992-02-25 General Motors Corporation Two-step valve operating mechanism
DE4244711A1 (de) * 1992-04-27 1994-03-03 Iav Motor Gmbh Ventiltrieb für Ladungswechselventile von Hubkolbenbrennkraftmaschinen
DE4343876A1 (de) * 1993-12-22 1995-06-29 Schaeffler Waelzlager Kg Stößel für den Ventiltrieb einer Brennkraftmaschine
DE9400453U1 (de) * 1994-01-13 1994-02-24 Schaeffler Waelzlager Kg Stößel für einen Ventiltrieb einer Brennkraftmaschine
US5431133A (en) * 1994-05-31 1995-07-11 General Motors Corporation Low mass two-step valve lifter
DE19515284A1 (de) * 1995-04-26 1996-10-31 Schaeffler Waelzlager Kg Nockenfolger eines Ventiltriebs einer Brennkraftmaschine
DE19603915A1 (de) * 1996-02-03 1997-08-07 Schaeffler Waelzlager Kg Stößel für einen Ventiltrieb einer Brennkraftmaschine
JP3535421B2 (ja) * 1998-12-22 2004-06-07 本田技研工業株式会社 内燃機関の動弁装置
US5979383A (en) * 1999-04-23 1999-11-09 General Motors Corporation Rocker arm assembly lubrication
DE19952909B4 (de) * 1999-11-03 2010-06-24 Schaeffler Kg Schaltbares Abstützelement
DE10123963A1 (de) * 2001-05-17 2002-11-21 Ina Schaeffler Kg Stößel für einen Ventiltrieb
KR20030048704A (ko) * 2001-12-12 2003-06-25 현대자동차주식회사 고강도 반응고 알루미늄 태핏 및 그 제조 방법
DE10330673A1 (de) * 2002-08-02 2005-02-03 Bayerische Motoren Werke Ag Schwenkhebel für einen hubvariablen Ventiltrieb
DE10318295A1 (de) * 2003-04-23 2004-11-11 Ina-Schaeffler Kg Schlepphebel eines Ventiltriebs einer Brennkraftmaschine
DE10330881A1 (de) * 2003-07-09 2005-01-27 Ina-Schaeffler Kg Verfahren zur Herstellung eines Außenhebels eines schaltbaren Schlepphebels
KR20050030732A (ko) * 2003-09-26 2005-03-31 현대자동차주식회사 2 스텝 가변 리프트 태핏

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129372A (en) * 1989-06-24 1992-07-14 Gmb Giesserei & Maschinenbau Bodan Ag Cup tappet body for valve tappets
GB2245327A (en) * 1990-05-17 1992-01-02 T & N Technology Ltd Tappets
DE4309602A1 (de) * 1993-03-24 1994-09-29 Bayerische Motoren Werke Ag Ventilstößel für zwei Brennkraftmaschinen-Hubventile
EP0841474A1 (fr) * 1996-11-07 1998-05-13 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Dispositif de recirculation de gaz d'échappement
WO1999020417A1 (fr) * 1997-10-20 1999-04-29 James Buckley Fabrication de moulages de precision a l'aide de matieres thixotropes
US6273041B1 (en) * 1998-01-17 2001-08-14 Ina Walzlager Schaeffler Ohg Cam follower in a valve train of an internal combustion engine switchable between different lifts for at least one gas-exchange valve
DE10212327A1 (de) * 2001-09-11 2003-03-27 Porsche Ag Ventiltrieb für eine Brennkraftmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150300476A1 (en) * 2014-04-22 2015-10-22 Aktiebolaget Skf Cam follower roller device, notably for a fuel injection pump
US9726270B2 (en) * 2014-04-22 2017-08-08 Aktiebolaget Skf Cam follower roller device, notably for a fuel injection pump
EP2947285A1 (fr) * 2014-05-22 2015-11-25 Aktiebolaget SKF Système mécanique formant un suiveur de came ou un culbuteur, comportant une cavité interne adaptée ä contenir un bain d'huile
US9441722B2 (en) 2014-05-22 2016-09-13 Aktiebolaget Skf Mechanical system forming a cam follower or a rocker arm, including an inner cavity adapted to contain an oil bath

Also Published As

Publication number Publication date
CN100554650C (zh) 2009-10-28
KR20070122214A (ko) 2007-12-28
EP1869295A1 (fr) 2007-12-26
KR101304629B1 (ko) 2013-09-05
JP2008536046A (ja) 2008-09-04
CN101160453A (zh) 2008-04-09
EP1869295B1 (fr) 2014-01-15
DE102005017409A1 (de) 2006-10-19

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