EP0892154A1 - Dispositif de rotation de soupape - Google Patents

Dispositif de rotation de soupape Download PDF

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Publication number
EP0892154A1
EP0892154A1 EP97810495A EP97810495A EP0892154A1 EP 0892154 A1 EP0892154 A1 EP 0892154A1 EP 97810495 A EP97810495 A EP 97810495A EP 97810495 A EP97810495 A EP 97810495A EP 0892154 A1 EP0892154 A1 EP 0892154A1
Authority
EP
European Patent Office
Prior art keywords
valve
piece
gear
rotation
spring
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.)
Granted
Application number
EP97810495A
Other languages
German (de)
English (en)
Other versions
EP0892154B1 (fr
Inventor
Marcel Blasendorff
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.)
Wartsila NSD Schweiz AG
Original Assignee
Wartsila NSD Schweiz AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8230307&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0892154(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wartsila NSD Schweiz AG filed Critical Wartsila NSD Schweiz AG
Priority to EP97810495A priority Critical patent/EP0892154B1/fr
Priority to DE59709505T priority patent/DE59709505D1/de
Priority to DK97810495T priority patent/DK0892154T3/da
Priority to JP18418198A priority patent/JPH1172012A/ja
Priority to KR1019980028545A priority patent/KR19990013874A/ko
Publication of EP0892154A1 publication Critical patent/EP0892154A1/fr
Application granted granted Critical
Publication of EP0892154B1 publication Critical patent/EP0892154B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines

Definitions

  • the invention relates to a device for rotating a Valve according to the preamble of claim 1, and a valve device for an engine and a Motor according to the respective independent patent claim.
  • the object of the present invention is therefore to propose a turning device for a valve, which are very simple in terms of their design effort and is consequently also relatively inexpensive, and that of Assembly effort is simple.
  • the device according to the invention for rotating the valve thus includes in particular a freewheel device, which is a rotation of the valve about its longitudinal axis allowed, but only in one of the two possible Directions of rotation.
  • the freewheel device has two Gear pieces on, whose gears with each other in Intervention can be brought. Furthermore, the Freewheel device still a drive spring.
  • the freewheel device thus comprises two Gear pieces and a wrap spring is constructive very simple and therefore also comparatively inexpensive and easy to assemble.
  • the wrap spring encloses the base part and the first Gear piece in the direction of the valve longitudinal axis at least partially and is tight on both.
  • This Embodiment is very easy to assemble and removable. (In principle, it would also be conceivable that Wrap spring in the base part or in the first Gearing or in both parts).
  • the second gear piece with a support plate connected, the backing plate and the second Gear piece in the direction of the valve longitudinal axis immovable relative to one another, however, about the valve longitudinal axis are rotatable against each other.
  • a return spring is arranged on the support plate.
  • the interlocking of the two Gear pieces and the winding direction of the Wrap spring designed so that when moving the second tooth piece on the first tooth piece too no rotation of the second tooth piece and thus of the valve, but the first Gear piece turned freely.
  • This Embodiment is particularly for an exhaust valve suitable because with this the rotation when closing the Valve should take place.
  • the interlocking of the two Gear pieces and the winding direction of the Wrap spring designed so that when moving the second tooth piece on the first tooth piece to a rotation of the second tooth piece and thus of the valve takes place while no rotation of the first Gear piece is done.
  • Such devices are suitable for rotating a valve especially for valve devices of engines, especially diesel engines.
  • valve 1 shows a typical valve device, as used for example in diesel engines is coming.
  • a valve 1 can be seen which is in the closed position State is arranged in a valve seat 2 (solid lines), the valve 1 is dash-dotted recognizable even when open.
  • a device for rotating the valve 1 which is generally designated by reference number 3.
  • the Contact area i.e. the area in which the valve 1 on valve seat 2 is here for reasons of depicted in a simplified manner for better clarity, since Fig. 1 is only an overview, the should clarify which part is the Device according to the invention for rotating the valve acts.
  • the device 3 for rotating the valve comprises a base part 30, a first tooth piece 31, a second tooth piece 32, a drive spring in Form of a wrap spring 33, a support plate 34, a arranged between base part 30 and support plate 34 Return spring 35, and a between the support plate 34th and the second toothing piece 32 Ball bearing 36. Furthermore, some are still not recognized designated lubricating oil holes in the individual parts.
  • the valve stem, not shown (and thus the Valve) is means in the device shown one conical connection (press fit) with the second Gear piece 32 connected (as is the case e.g. in Fig. 1 is indicated by dashed lines).
  • the base part 30 and the first tooth piece 31 are connected to each other by means of a locking ring 37 (secured) in such a way that the base part 30 and the first tooth piece 31 in the direction of Longitudinal valve axis are immovable against each other.
  • the base part 30 and the toothed piece 31 basically rotatable against each other.
  • the wrap feather 33 encloses both the base part 30 and the first Gear piece 31 each partially and is tight both parts. This is achieved in that the Inner diameter of the wrap spring 33 slightly smaller is selected as the outer diameter of the base part 30 and the first tooth piece 31 in the areas in which the wrap spring 33 comes to rest. To this A weak press fit of the wrap spring 33 becomes wise reached.
  • the toothing 320 can be seen in FIG in one area on the outer wall of the second Gear piece 32 is provided and a corresponding toothing 310 on the inner wall of the first Gear piece 31.
  • the toothing 320 on the The outer wall of the second tooth piece 32 is through the dashed or dash-dotted lines indicated, the dash-dotted line the course of the Toothing 320 on the outer wall "in front" of the drawing plane represents, and the dashed line the course of the Interlocking "behind" the drawing level.
  • the toothing 320 runs diagonally to the valve longitudinal axis A.
  • the wrap spring 33 which is also shown in Fig. 3 has the shape of a spring block with the length L on, so the individual turns are tightly packed on each other.
  • the Total inner surface of the wrap spring 33 cylindrical shape, causing the surface pressure against the base part 30 and the first tooth piece 31 can be kept lower (the spring lies biased to) than with a different spring cross section.
  • the wrap spring 33 works in such a way that with a Torsional load of the spring the spring itself in radial Direction stretches or contracts. Whether it stretches or moving in depends on whether the Direction of torsional load with the sense of winding Wrap spring 33 matches or whether it Winding direction of the wrap spring 33 opposite is oriented.
  • the return spring 35 is in the embodiment designed as a spiral spring according to the drawing figures, which is compressible in the direction of the valve longitudinal axis and is stretchy.
  • valve is initially closed (solid line in Fig. 1), then opened becomes (dash-dotted line in Fig. 1), and afterwards is closed again (solid line in Fig. 1).
  • the valve is over with the second toothing piece 32 the cone connection is firmly connected.
  • the opening and The valve can be closed using a (not shown) camshaft controlled, like this is common for engines.
  • the valve is closed using the Return spring 35, which is on the support plate 34th supports and the support plate 34 together with the second Gear piece 32 again in the direction of Longitudinal valve axis A moved back (up here).
  • the gear pieces 31 and 32 following their respective toothing 310 or 320 twist against each other.
  • the first tooth piece 31 can so do not twist, such twisting is caused by the Wrap spring 33 prevents - the first tooth piece is therefore held.
  • the one desired for an exhaust valve Operation of the device achieved:
  • the valve is not twisted when opening, but is closed when closed it twisted, possibly on the valve surface accumulated deposits stripped or be sanded, reducing the life of the valve elevated.
  • Embodiment could e.g. the wrap spring 33 within the base part 30 and the first Gear piece 31 to be pressed in under pretension.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Mechanically-Actuated Valves (AREA)
EP97810495A 1997-07-16 1997-07-16 Dispositif de rotation de soupape Revoked EP0892154B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP97810495A EP0892154B1 (fr) 1997-07-16 1997-07-16 Dispositif de rotation de soupape
DE59709505T DE59709505D1 (de) 1997-07-16 1997-07-16 Vorrichtung zum Drehen eines Ventils
DK97810495T DK0892154T3 (da) 1997-07-16 1997-07-16 Indretning til drejning af en ventil
JP18418198A JPH1172012A (ja) 1997-07-16 1998-06-30 弁を回転させるための装置
KR1019980028545A KR19990013874A (ko) 1997-07-16 1998-07-15 밸브회전용 장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97810495A EP0892154B1 (fr) 1997-07-16 1997-07-16 Dispositif de rotation de soupape

Publications (2)

Publication Number Publication Date
EP0892154A1 true EP0892154A1 (fr) 1999-01-20
EP0892154B1 EP0892154B1 (fr) 2003-03-12

Family

ID=8230307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810495A Revoked EP0892154B1 (fr) 1997-07-16 1997-07-16 Dispositif de rotation de soupape

Country Status (5)

Country Link
EP (1) EP0892154B1 (fr)
JP (1) JPH1172012A (fr)
KR (1) KR19990013874A (fr)
DE (1) DE59709505D1 (fr)
DK (1) DK0892154T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1148211A2 (fr) * 2000-04-22 2001-10-24 TRW Deutschland GmbH Dispositif de rotation de soupape
WO2009124718A1 (fr) * 2008-04-11 2009-10-15 Märkisches Werk GmbH Dispositif de rotation de soupapes pour des soupapes d'échappement de moteurs à combustion interne
ITPE20110006A1 (it) * 2011-05-17 2012-11-18 Alessandro Pisciella Sistema di distribuzione desmodromica con valvole a movimento traslorotante.
CN110656993A (zh) * 2019-10-09 2020-01-07 湖南工学院 一种汽车发动机旋阀器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101518936B1 (ko) * 2013-12-16 2015-05-11 현대자동차 주식회사 차량 엔진용 밸브 트레인
KR102137493B1 (ko) 2018-08-30 2020-07-24 (주)유니폴리 트랜스액슬 샤프트용 카트리지 오일씰

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB122907A (en) * 1918-02-07 1919-02-07 George Holt Thomas An Improved Device for obtaining Rotary Motion from Reciprocatory Motion.
US1347488A (en) * 1918-08-15 1920-07-27 Stanley B Arnold Valve
US1520273A (en) * 1922-08-19 1924-12-23 Continental Engineering Corp Rotary valve
DE19500321A1 (de) * 1995-01-07 1995-06-01 Klaus Dipl Ing Henze Ventildrehvorrichtung für Gaswechselventile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB122907A (en) * 1918-02-07 1919-02-07 George Holt Thomas An Improved Device for obtaining Rotary Motion from Reciprocatory Motion.
US1347488A (en) * 1918-08-15 1920-07-27 Stanley B Arnold Valve
US1520273A (en) * 1922-08-19 1924-12-23 Continental Engineering Corp Rotary valve
DE19500321A1 (de) * 1995-01-07 1995-06-01 Klaus Dipl Ing Henze Ventildrehvorrichtung für Gaswechselventile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1148211A2 (fr) * 2000-04-22 2001-10-24 TRW Deutschland GmbH Dispositif de rotation de soupape
EP1148211A3 (fr) * 2000-04-22 2002-11-06 TRW Deutschland GmbH Dispositif de rotation de soupape
WO2009124718A1 (fr) * 2008-04-11 2009-10-15 Märkisches Werk GmbH Dispositif de rotation de soupapes pour des soupapes d'échappement de moteurs à combustion interne
DE102008018612A1 (de) * 2008-04-11 2009-10-29 Märkisches Werk GmbH Ventildrehvorrichtung für Auslassventile von Verbrennungsmotoren
ITPE20110006A1 (it) * 2011-05-17 2012-11-18 Alessandro Pisciella Sistema di distribuzione desmodromica con valvole a movimento traslorotante.
CN110656993A (zh) * 2019-10-09 2020-01-07 湖南工学院 一种汽车发动机旋阀器
CN110656993B (zh) * 2019-10-09 2020-07-14 湖南工学院 一种汽车发动机旋阀器

Also Published As

Publication number Publication date
JPH1172012A (ja) 1999-03-16
EP0892154B1 (fr) 2003-03-12
DE59709505D1 (de) 2003-04-17
DK0892154T3 (da) 2003-04-22
KR19990013874A (ko) 1999-02-25

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