EP3300510B1 - Ventilvorrichtung mit langsam drehenden drehventilen für verbrennungsmotoren - Google Patents

Ventilvorrichtung mit langsam drehenden drehventilen für verbrennungsmotoren Download PDF

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Publication number
EP3300510B1
EP3300510B1 EP16750088.3A EP16750088A EP3300510B1 EP 3300510 B1 EP3300510 B1 EP 3300510B1 EP 16750088 A EP16750088 A EP 16750088A EP 3300510 B1 EP3300510 B1 EP 3300510B1
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EP
European Patent Office
Prior art keywords
valve
axis
rotary valve
rotary
internal combustion
Prior art date
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EP16750088.3A
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German (de)
English (en)
French (fr)
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EP3300510A1 (de
Inventor
An THAI THANH
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Individual
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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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L7/04—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
    • F01L7/045—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston with two or more valves arranged coaxially
    • 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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L7/04—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston

Definitions

  • valves for internal combustion engines controlled by a camshaft is a possible source of engine damage if their timing is disturbed (e.g. by tearing off the V-belts).
  • Valves in combination with camshaft and timing chain are part of the cause of noise and vibration during operation.
  • the manufacturing costs for this conventional valve type and its control mechanism are high. Due to the camshaft design, the engine is taller and heavier.
  • valve device can be manufactured using a few and compact components.
  • An internal combustion engine using this valve device becomes lower, lighter, simpler, quieter, less vibration, easy to maintain and quicker to assemble by avoiding the usual camshaft design.
  • the invention relates to a rotary valve ( Fig. 1 ), which has laterally symmetrically arranged openings and is used in a valve device according to claim 1.
  • the rotary valve has a center of gravity that lies on its axis of rotation.
  • the pressure difference in an entire working cycle only results in a maximum of an axially resulting force along the axis of rotation, since inlet openings (or outlet openings) of the cylinders also have a symmetrical arrangement.
  • the application describes, among other things, a method for operating an internal combustion engine with a valve device, in which one or more rotary valves are used on the outside around the cylinder wall and their axis of rotation runs parallel to the cylinder axis ( Fig. 4 ).
  • a cylinder has only outlet openings to an upper rotary valve and inlet openings to a lower valve ( Fig. 8 ).
  • a cylinder with paired inlet and outlet openings in only one (upper) rotary valve ( Fig. 5, Fig. 6 ).
  • the inner wall of the rotary valve forms a sliding surface with the outer wall of the cylinder due to their common, identical surface.
  • This sliding surface is not exactly parallel to the axis of rotation, but slightly conical so that the rotary valve is not stuck due to the different thermal expansion ( Fig. 3 ).
  • This angle is also kept small so that only a small axial contact force is sufficient to hold the rotary valve in its seat, even if the pressure difference between inside and outside reaches a maximum.
  • the same principle of the slightly conical design is also used for the outer wall of the rotary valve and the inlet / outlet channels.
  • the opening angle of the valve or the cylinder can be enlarged or reduced by design in order to realize different opening times for the gas exchange.
  • the number of openings of a rotary valve corresponds to the number of work cycles performed at a full revolution (360 °). This means that the rotary valve has a factor of 1 / n to the duty cycle of an engine, where n is the number of openings of a rotary valve.
  • n is the number of openings of a rotary valve.
  • valve device which several (in Fig. 8 two) separately controlled rotary valves, a phase shift of the inlet and outlet timing can be realized (eg by means of rotary valve drive through cylindrical gearwheels with helical teeth).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
EP16750088.3A 2015-04-27 2016-04-20 Ventilvorrichtung mit langsam drehenden drehventilen für verbrennungsmotoren Active EP3300510B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015005316.7A DE102015005316A1 (de) 2015-04-27 2015-04-27 Ventilvorrichtung mit langsam drehenden Drehventilen für Verbrennungsmotoren
PCT/DE2016/000163 WO2016173575A1 (de) 2015-04-27 2016-04-20 Ventilvorrichtung mit langsam drehenden drehventilen für verbrennungsmotoren

Publications (2)

Publication Number Publication Date
EP3300510A1 EP3300510A1 (de) 2018-04-04
EP3300510B1 true EP3300510B1 (de) 2020-04-01

Family

ID=56617963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16750088.3A Active EP3300510B1 (de) 2015-04-27 2016-04-20 Ventilvorrichtung mit langsam drehenden drehventilen für verbrennungsmotoren

Country Status (6)

Country Link
US (1) US10371022B2 (es)
EP (1) EP3300510B1 (es)
CN (1) CN108323176B (es)
DE (1) DE102015005316A1 (es)
ES (1) ES2791402T3 (es)
WO (1) WO2016173575A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111706416B (zh) * 2020-05-14 2021-08-24 浙江锋锐发动机有限公司 一种气门座圈安装结构、调节方法及发动机
DE102020213260A1 (de) 2020-10-20 2022-04-21 Mtu Friedrichshafen Gmbh Brennkraftmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190920051A (en) * 1909-09-01 1910-02-10 George William Alston Brown Improved Means for Controlling Admission and Exhaust in Internal Combustion Engines.
US5558049A (en) * 1995-06-05 1996-09-24 Dubose; G. Douglas Variable orbital aperture valve system for fluid processing machines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR422270A (fr) 1910-09-07 1911-03-17 Diego Garcia Loynaz Appareil de distribution sans soupapes pour moteurs à essence
FR436844A (fr) 1911-11-25 1912-04-05 Charles Emile Serex Distribution par manchon extensible pour moteur à explosions
FR483896A (fr) 1916-10-31 1917-08-17 William Birrell Perfectionnements aux moteurs à combustion interne
DE453633C (de) 1925-12-08 1927-12-14 Erasimo Deschino Abnehmbarer Zylinderkopf fuer Brennkraftmaschinen mit zwei Drehschiebern fuer jeden Zylinder
FR32934E (fr) 1927-01-22 1928-03-21 Perfectionnements aux moteurs à distributeurs rotatifs
EP0101431A3 (de) * 1982-08-18 1985-01-23 Harald Rus Mehrfachschiebersteuerung
DE10239403A1 (de) 2002-08-28 2003-04-30 Christian Puchas Drehschiebersteuerung für einen Hubkolbenmotor
JP4395474B2 (ja) * 2005-11-18 2010-01-06 三菱重工業株式会社 掃気管制弁装置を備えた内燃機関

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190920051A (en) * 1909-09-01 1910-02-10 George William Alston Brown Improved Means for Controlling Admission and Exhaust in Internal Combustion Engines.
US5558049A (en) * 1995-06-05 1996-09-24 Dubose; G. Douglas Variable orbital aperture valve system for fluid processing machines

Also Published As

Publication number Publication date
WO2016173575A4 (de) 2017-01-05
EP3300510A1 (de) 2018-04-04
ES2791402T3 (es) 2020-11-04
CN108323176A (zh) 2018-07-24
CN108323176B (zh) 2020-06-16
WO2016173575A1 (de) 2016-11-03
US20180051600A1 (en) 2018-02-22
US10371022B2 (en) 2019-08-06
DE102015005316A1 (de) 2016-10-27

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