EP1227224B1 - Dispositif pour la rotation des soupapes - Google Patents

Dispositif pour la rotation des soupapes Download PDF

Info

Publication number
EP1227224B1
EP1227224B1 EP01127714A EP01127714A EP1227224B1 EP 1227224 B1 EP1227224 B1 EP 1227224B1 EP 01127714 A EP01127714 A EP 01127714A EP 01127714 A EP01127714 A EP 01127714A EP 1227224 B1 EP1227224 B1 EP 1227224B1
Authority
EP
European Patent Office
Prior art keywords
valve body
recited
valve
cover
pockets
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.)
Expired - Lifetime
Application number
EP01127714A
Other languages
German (de)
English (en)
Other versions
EP1227224A3 (fr
EP1227224A2 (fr
Inventor
Klaus Dr.-Ing. Gebauer
Fabrice Dipl.-Ing. Schneider
Walter Strzoda
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.)
ZF Automotive Germany GmbH
Original Assignee
TRW Automotive GmbH
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 TRW Automotive GmbH filed Critical TRW Automotive GmbH
Publication of EP1227224A2 publication Critical patent/EP1227224A2/fr
Publication of EP1227224A3 publication Critical patent/EP1227224A3/fr
Application granted granted Critical
Publication of EP1227224B1 publication Critical patent/EP1227224B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L1/32—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for rotating lift valves, e.g. to diminish wear
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a valve rotating device for forcibly generating rotations of a gas exchange valve of an internal combustion engine during its opening or closing movements, with a valve body comprehensive and force-transmitting connected to this base body, which is provided with a plurality of circumferentially oriented pockets for receiving biased by tangential rolling elements, with a simultaneously serving as a valve spring pad cover and with a clamped between the body and the cover disk spring as a power translator or energy storage for the to be performed valve rotations, wherein the base body and the cover made of formed sheet metal parts and wherein the base body consists of a conically pressed sheet metal part with circumferential, flange-like edge, in which the WälzSystemtaschen are pressed.
  • the device components body and lid are generally produced by cold extrusion in one or more stages. This complex dies are required, the life of which is determined by the material used and the necessary forming forces. After the cold extrusion, which must be done with larger valve rotors in several stages with intermediate annealing, still cutting processes are necessary to produce certain functional surfaces, so that the production of said rotary device components are associated with considerable costs. The aim is therefore to reduce the production costs without a negative effect on the rigidity, function and service life.
  • Body and cover made of sheet steel make it possible to transform to the essential functional surfaces such as cone, plate spring pad and ball track to restrict.
  • the function areas of secondary importance that have hitherto been continuously circulating are replaced by smaller and individual, evenly distributed, curved areas on the circumference.
  • the necessary Zerspanaufwand can be reduced to very few operations for setting certain finished dimensions.
  • the invention has for its object to provide a valve rotating device with the features of the introductory preamble, the mechanism for receiving the rolling elements are made in a structurally simple and cost-effective manner.
  • the invention solves this issue by the fact that between the WälzShifn the body unordered gaps simple, the tangential springs holding in position, separate from the body design elements, which are designed as pressed sheet metal parts, are assigned.
  • the process-related gaps between the pockets in the body are assigned simple design elements that hold the tangential springs within the pockets in position at the same time.
  • These construction elements such as pins or stops, can also be combined in a ring connected to form a component.
  • the necessary stiffeners to the stability of the pocket ring of the body relative to the cone are formed in the sheet metal body. Further stability is achieved by the basic body by circumferential grooves or heels. The use of materials and thus also the moving masses are considerably reduced.
  • the lid is made as a simple pressed part. Circumferential paragraphs are not complete, but only in the form of individual, uniformly distributed on the circumference, bent tongues or paragraphs executed. The closing of the valve rotating device after joining their individual parts can be done by bending individual tongues to the base body.
  • the base body is made by molding the cone and pressing all the pockets into its flange-like rim.
  • the gaps can be made narrower than the previous webs, which either the pitch circle and thus the space for the same load smaller or the rolling elements, z. B. balls, can be selected larger.
  • As a stop for the arranged in the pockets tangential springs it is sufficient to insert simple construction elements that prevent slipping of the springs. This can be done by placing a separate sheet metal ring with reaching into the pockets stop tongues. After the installation of balls, tangential springs and their holding parts, the lid is positioned after placing the disc spring and fixed only by bending individual segments on the circumference.
  • FIG. 1 shows a base body 1 of a formed sheet metal ring with a cone 1a and with a pocket 2 pressed into a flange-shaped collar 1b and a steel ball 3 arranged therein as a rolling element.
  • a plate spring 4 holds the balls 3 in their pockets 2. It is supported with its outer edge on the inside of a lid 5 made of non-cutting metal sheet, while its inner edge is supported on a disc spring support 6.
  • the disc spring support is either formed as a circumferential shoulder or consists of several, distributed around the circumference and formed from the body flat heels.
  • the valve spring 7 is supported at one end on the contact surface 10 of the lid 5.
  • the lid is provided with a plurality of circumferentially distributed and axially formed tongues 8.
  • the cover 5 with a plurality of tabs or tongues 9 distributed on its circumference comprises the outer edge of the base body.
  • the tongues 9 are limited to the necessary minimum number.
  • the pockets 2 can be so far pushed out of the plane of the pocket wreath that at their ends in each case a gap 11 is formed to the adjacent pocket. This ensures a much improved lubricant exchange.
  • the inserted tangential spring receives support in this area, which is ensured, for example, by a pin or tongue-shaped stop reaching into the pocket.
  • the stops may be part of a separate ring 12 ( Figures 6 and 7). This is provided with punched openings 13 which are congruent when placing the ring on the body with the contours of Wälz Eisentaschen. In the area of the gaps 11 (FIG. 5), the openings 13 have punched tongues 14, which can also be bent at right angles in order to provide a hold for the inserted tangential springs in the region of the gaps 11.
  • the rings 12 are placed in the manner shown with the figures 9 and 10 on the base body and fixedly connected thereto by example projection welding.
  • the tangential springs 16 are prevented by the tongues 14 from slipping out of the gap 11 and guided at the same time. With their front ends they always push the balls 3 in the upper position of Trajectories within the pockets as soon as the pressure of the disc springs 4 decreases during valve actuation and the balls are released.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Lift Valve (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Taps Or Cocks (AREA)

Claims (8)

  1. Dispositif pour la rotation des soupapes afin de produire des rotations d'une soupape de moteur d'un moteur à combustion pendant ses mouvements d'ouverture ou de fermeture, comportant un corps de base (1) comprenant la tige de soupape et relié à celle-ci de manière à transmettre une force, lequel corps de base est pourvu de plusieurs poches (2) orientées dans la direction circonférentielle afin de recevoir des éléments roulants prétensionnés par des ressorts tangentiels (16), comportant un couvercle (5) servant en même temps de support au ressort de soupape et comportant une rondelle Belleville (4) serrée entre le corps de base (1) et le couvercle (5) faisant office de dispositif de transmission de la force ou de stockage d'énergie en vue des rotations de soupape à effectuer, moyennant quoi le corps de base (1) et le couvercle (5) sont constitués de pièces de tôle façonnées et moyennant quoi le corps de base (1) est constitué d'une pièce de tôle pressée en forme de cône avec un bord périphérique en forme de collet (1b), dans lequel les poches des éléments roulants (2) sont enfoncées,
    caractérisé en ce que
    des éléments de construction (14) simples, maintenant en position les ressorts tangentiels (16), séparés du corps de base (1), qui sont réalisés comme des pièces de tôle pressées, sont coordonnés aux espaces libres disposés entre les poches des éléments roulants (2) du corps de base (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que le façonnage est limité aux surfaces fonctionnelles essentielles, c'est à dire le cône (1a), le couvercle (5) comportant un support de rondelle Belleville (10) et la voie de roulement des éléments roulants.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que au moins le corps de base (1) et le couvercle (5) sont constitués d'un plastique durcissable.
  4. Dispositif selon une des revendications 1 à 3, caractérisé en ce que des surfaces fonctionnelles individuelles sont traitées ou revêtues de manière à empêcher l'usure.
  5. Dispositif selon une des revendications 1 à 3, caractérisé en ce que le couvercle (5) est pourvu d'éléments fonctionnels répartis uniformément sur sa circonférence sous la forme de languettes ou de segments ou de prolongements façonnés.
  6. Dispositif selon la revendication 1, caractérisé en ce que un anneau de soutien (12) séparé, reposant sur le corps de base est prévu avec des éléments pour soutenir et guider les ressorts tangentiels (16).
  7. Dispositif selon la revendication 6, caractérisé en ce que l'anneau de soutien (12) est relié au corps de base (1) par une bosse de soudure (15).
  8. Dispositif selon la revendication 6, caractérisé en ce que l'anneau de soutien (12) ou d'autres éléments de construction de formes simples augmentent la rigidité et sont reliés au corps de base (1) par emboîtage ou soudure.
EP01127714A 2001-01-26 2001-11-21 Dispositif pour la rotation des soupapes Expired - Lifetime EP1227224B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10103578A DE10103578A1 (de) 2001-01-26 2001-01-26 Ventildrehvorrichtung
DE10103578 2001-01-26

Publications (3)

Publication Number Publication Date
EP1227224A2 EP1227224A2 (fr) 2002-07-31
EP1227224A3 EP1227224A3 (fr) 2003-02-12
EP1227224B1 true EP1227224B1 (fr) 2006-10-18

Family

ID=7671873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127714A Expired - Lifetime EP1227224B1 (fr) 2001-01-26 2001-11-21 Dispositif pour la rotation des soupapes

Country Status (5)

Country Link
US (1) US6588391B2 (fr)
EP (1) EP1227224B1 (fr)
JP (1) JP2002242620A (fr)
KR (1) KR20020063101A (fr)
DE (2) DE10103578A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023030701A1 (fr) * 2021-09-03 2023-03-09 Federal-Mogul Valvetrain Gmbh Dispositif de rotation de soupape et composant composite pour celui-ci

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5063031B2 (ja) * 2006-05-16 2012-10-31 日本発條株式会社 スプリング・リテーナ及びスプリング・システム
WO2009134680A1 (fr) * 2008-04-30 2009-11-05 Florek Bronislaw B Rotateur de soupape amélioré à billes
US8136496B2 (en) * 2009-01-29 2012-03-20 Helio Precision Products, Inc. Valve rotator assembly
KR102170920B1 (ko) * 2013-12-17 2020-10-28 두산인프라코어 주식회사 엔진용 밸브 트레인
JP6540705B2 (ja) * 2013-12-19 2019-07-10 ジーイー・ヘルスケア・バイオサイエンス・アクチボラグ 生物学的液体処理システムのための遠隔操作弁
JP6083398B2 (ja) * 2014-02-21 2017-02-22 トヨタ自動車株式会社 バルブ回転装置
GB2551128B (en) * 2016-06-06 2020-08-19 Helical Tech Ltd Valve rotator body and method of manufacture of a valve rotator body

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1513075A (en) * 1923-08-06 1924-10-28 Lou J Trembley Self-grinding valve
CH279054A (fr) * 1944-10-26 1951-11-15 Thompson Prod Inc Dispositif pour faire tourner une soupape à soulèvement d'un moteur.
US2875740A (en) * 1955-08-29 1959-03-03 James M Leake Stamped valve rotator cage
DE1924128C3 (de) * 1969-05-12 1979-04-26 Teves-Thompson Gmbh, 3013 Barsinghausen Vorrichtung zum Drehen von Ventilen, vorzugsweise für Verbrennungskraftmaschinen
DE2208466A1 (de) * 1972-02-23 1973-08-30 Schaeffler Ohg Industriewerk Vorrichtung zum drehen eines steuerventils
FR2221961A5 (fr) * 1973-03-13 1974-10-11 Etud Machines Thermiques
FI101164B (sv) * 1995-10-10 1998-04-30 Waertsilae Nsd Oy Ab Förbättrad ventilrotationsanordning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023030701A1 (fr) * 2021-09-03 2023-03-09 Federal-Mogul Valvetrain Gmbh Dispositif de rotation de soupape et composant composite pour celui-ci

Also Published As

Publication number Publication date
EP1227224A3 (fr) 2003-02-12
DE50111268D1 (de) 2006-11-30
DE10103578A1 (de) 2002-08-14
US6588391B2 (en) 2003-07-08
JP2002242620A (ja) 2002-08-28
EP1227224A2 (fr) 2002-07-31
KR20020063101A (ko) 2002-08-01
US20020100449A1 (en) 2002-08-01

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