EP3300510A1 - Dispositif de soupapes à soupapes rotatives à rotation lente pour moteurs à combustion interne - Google Patents

Dispositif de soupapes à soupapes rotatives à rotation lente pour moteurs à combustion interne

Info

Publication number
EP3300510A1
EP3300510A1 EP16750088.3A EP16750088A EP3300510A1 EP 3300510 A1 EP3300510 A1 EP 3300510A1 EP 16750088 A EP16750088 A EP 16750088A EP 3300510 A1 EP3300510 A1 EP 3300510A1
Authority
EP
European Patent Office
Prior art keywords
valve
openings
rotary valve
rotary
camshaft
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
EP16750088.3A
Other languages
German (de)
English (en)
Other versions
EP3300510B1 (fr
Inventor
An THAI THANH
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3300510A1 publication Critical patent/EP3300510A1/fr
Application granted granted Critical
Publication of EP3300510B1 publication Critical patent/EP3300510B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

  • the specified in claim 1,2 and 3 invention is based on this problem, a valve device consisting of compact and easy to manufacture rotary valves. It does not cause engine damage of the type that occurs with valves with camshafts if the controller does not work properly. It saves power for a drive and at the same time vibration, noise, and height of an internal combustion engine is reduced.
  • Valve device can be produced by vinous and compact components.
  • the invention relates to a rotary valve (Fig.l) having laterally at equal intervals symmetrically arranged openings.
  • the rotary valve has a center of gravity, which lies on its axis of rotation.
  • the pressure difference in an entire working cycle causes only a maximum of an axially resultant force along the axis of rotation, since inlet openings (or.
  • Outlet openings of the cylinder also have a symmetrical arrangement. These factors prevent imbalance during operation of a rotary valve.
  • the invention relates to a method for operating an internal combustion engine with a
  • Valve device in which one or more rotary valves are used externally around the cylinder wall around and their axis of rotation is parallel to the cylinder axis ( Figure 4). It is possible to combine different openings of the cylinder and the rotary valve. For example: a) A cylinder has only outlet openings to an upper rotary valve and inlet openings to a lower valve (Fig. 8). Or b) 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 with the outer wall of the cylinder by their common identical running surface a sliding surface.
  • This sliding surface is not exactly parallel to the axis of rotation, but slightly conical, so that the rotary valve by the different
  • the opening angle of the valve or the cylinder can be increased or decreased by design to realize different opening times for the gas exchange.
  • the number of openings of a rotary valve corresponds to the number of working cycles performed, in one full revolution (360 °). That is, the rotary valve has the factor 1 / n to the duty cycle of an engine, where n is the number of openings of a rotary valve.
  • a rotary valve slows by a factor of 1 / (2 * n) to the crankshaft. Therefore, a rotary valve with 4 orifices in a four-stroke engine requires only one revolution when the crankshaft turns eight times (Fig.6).
  • a phase shift of the inlet and outlet timing can be realized (for example by means of rotary valve drive by cylindrical gears 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)

Abstract

Le problème technique à la base de l'invention est le suivant : un système de soupapes commandé par arbre à cames et destiné à des moteurs à combustion interne est une source potentielle d'endommagement du moteur en cas de défaut de synchronisation (par exemple par déchirure de la courroie trapézoïdale). Les soupapes en combinaison avec l'arbre à cames et la chaîne de distribution sont en partie à l'origine du bruit et des vibrations générés pendant le fonctionnement. Les coûts de fabrication de ces soupapes classique et de leur mécanisme de commande sont élevés. En raison de la construction au moyen de l'arbre à cames, le moteur est plus haut et plus lourd. Solution au problème : un dispositif de soupapes constitué de plusieurs soupapes en rotation lente autour de la paroi du cylindre pour l'échange de gaz. Chaque soupape rotative, qui est commandée séparément, comporte des ouvertures symétriques. Le nombre d'ouvertures de la soupape rotative correspond au nombre de cycles de travail par rotation. Autrement dit, plus une soupape rotative a d'ouvertures, plus elle doit tourner lentement. Un entraînement séparé pour chaque soupape rotative et la dimension de ses ouvertures permet de réaliser des déphasages, un chevauchement des soupapes et un temps d'ouverture différents. Application : moteur à quatre temps
EP16750088.3A 2015-04-27 2016-04-20 Commande de soupape pour valve rotative à rotation lente destinée à un moteur à combustion interne Active EP3300510B1 (fr)

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 (fr) 2015-04-27 2016-04-20 Dispositif de soupapes à soupapes rotatives à rotation lente pour moteurs à combustion interne

Publications (2)

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

Family

ID=56617963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16750088.3A Active EP3300510B1 (fr) 2015-04-27 2016-04-20 Commande de soupape pour valve rotative à rotation lente destinée à un moteur à combustion interne

Country Status (6)

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

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

Family Cites Families (10)

* 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.
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 (fr) * 1982-08-18 1985-01-23 Harald Rus Distribution par tiroir multiple
US5558049A (en) * 1995-06-05 1996-09-24 Dubose; G. Douglas Variable orbital aperture valve system for fluid processing machines
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

Also Published As

Publication number Publication date
DE102015005316A1 (de) 2016-10-27
ES2791402T3 (es) 2020-11-04
US20180051600A1 (en) 2018-02-22
CN108323176B (zh) 2020-06-16
WO2016173575A1 (fr) 2016-11-03
EP3300510B1 (fr) 2020-04-01
US10371022B2 (en) 2019-08-06
WO2016173575A4 (fr) 2017-01-05
CN108323176A (zh) 2018-07-24

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