ATE499510T1 - VALVE ROTATION DEVICE FOR EXHAUST VALVES OF INCOMMODATION ENGINES - Google Patents

VALVE ROTATION DEVICE FOR EXHAUST VALVES OF INCOMMODATION ENGINES

Info

Publication number
ATE499510T1
ATE499510T1 AT09730235T AT09730235T ATE499510T1 AT E499510 T1 ATE499510 T1 AT E499510T1 AT 09730235 T AT09730235 T AT 09730235T AT 09730235 T AT09730235 T AT 09730235T AT E499510 T1 ATE499510 T1 AT E499510T1
Authority
AT
Austria
Prior art keywords
valve
helical toothing
engines
exhaust valves
opening
Prior art date
Application number
AT09730235T
Other languages
German (de)
Inventor
Holger Fellmann
Original Assignee
Maerkisches Werk 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 Maerkisches Werk Gmbh filed Critical Maerkisches Werk Gmbh
Application granted granted Critical
Publication of ATE499510T1 publication Critical patent/ATE499510T1/en

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
    • F01L1/32—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to a valve rotating device for exhaust valves of internal combustion engines, in particular marine diesel engines. According to the invention, said device is arranged on a valve housing for the valve spindle (1), in the vicinity of a first drive element for opening the valve and a second drive element for closing the valve. Said device comprises a neutral device that rotates the valve spindle (1) during the closing movement or the opening movement thereof and releases the rotation in the counter direction. In order to transmit the rotational movement, the valve spindle (1) comprises an outer helical toothing (16) on the valve stem (3) and the associated inner helical toothing (14) on an inner ring (13) is supported by means of the neutral device. The outer helical toothing (16) corresponds, in the axial direction, at least to the length of the opening lift of the valve spindle (1) and the minimum engagement length of the helical toothing. The inner ring (13) is mounted on the axial ball-bearing (62) in a recess of a housing cover (4) of the valve housing (2) and comprises, on the outer periphery thereof, a ratchet toothing that interacts with the ratchet elements of the neutral device.
AT09730235T 2008-04-11 2009-04-07 VALVE ROTATION DEVICE FOR EXHAUST VALVES OF INCOMMODATION ENGINES ATE499510T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008018612A DE102008018612A1 (en) 2008-04-11 2008-04-11 Valve rotating device for exhaust valves of internal combustion engines
PCT/EP2009/002560 WO2009124718A1 (en) 2008-04-11 2009-04-07 Valve rotating device for exhaust valves of internal combustion engines

Publications (1)

Publication Number Publication Date
ATE499510T1 true ATE499510T1 (en) 2011-03-15

Family

ID=40863705

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09730235T ATE499510T1 (en) 2008-04-11 2009-04-07 VALVE ROTATION DEVICE FOR EXHAUST VALVES OF INCOMMODATION ENGINES

Country Status (5)

Country Link
EP (1) EP2212525B1 (en)
AT (1) ATE499510T1 (en)
DE (2) DE102008018612A1 (en)
DK (1) DK2212525T3 (en)
WO (1) WO2009124718A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1347488A (en) * 1918-08-15 1920-07-27 Stanley B Arnold Valve
DE3225725A1 (en) * 1982-07-06 1984-01-12 Gebrüder Sulzer AG, 8401 Winterthur Device for the intermittent rotation of valves leading into the cylinder space of an internal combustion engine
DE9003894U1 (en) * 1990-04-04 1990-07-19 Krupp Mak Maschinenbau Gmbh, 2300 Kiel Torsion device for a valve of an internal combustion engine
DE29522196U1 (en) * 1995-01-07 2000-09-14 Wissenschaftlich-Technisches Zentrum für Motoren- und Maschinenforschung Roßlau gGmbH, 06862 Roßlau Valve turning device for gas exchange valves
FI101164B (en) * 1995-10-10 1998-04-30 Waertsilae Nsd Oy Ab Improved valve rotation device
DK0892154T3 (en) * 1997-07-16 2003-04-22 Waertsilae Nsd Schweiz Ag Device for turning a valve
DE102004020754B4 (en) 2004-04-27 2006-03-30 Märkisches Werk GmbH Valve rotating device for exhaust valves of ships' diesel engines has rotary cylinder and stationary support cylinder inter-engaging via helical gearing, with rotary cylinder connected to valve spindle via overrunning device

Also Published As

Publication number Publication date
DK2212525T3 (en) 2011-06-20
DE102008018612A1 (en) 2009-10-29
EP2212525B1 (en) 2011-02-23
EP2212525A1 (en) 2010-08-04
WO2009124718A1 (en) 2009-10-15
DE502009000398D1 (en) 2011-04-07

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