WO2004001197A1 - Moteur a quatre temps a une seule soupape en tete par cylindre - Google Patents

Moteur a quatre temps a une seule soupape en tete par cylindre Download PDF

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Publication number
WO2004001197A1
WO2004001197A1 PCT/RO2003/000009 RO0300009W WO2004001197A1 WO 2004001197 A1 WO2004001197 A1 WO 2004001197A1 RO 0300009 W RO0300009 W RO 0300009W WO 2004001197 A1 WO2004001197 A1 WO 2004001197A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
admission
evacuation
valves
engine
Prior art date
Application number
PCT/RO2003/000009
Other languages
English (en)
Inventor
Dan Tudorica
Original Assignee
Dan Tudorica
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 Dan Tudorica filed Critical Dan Tudorica
Priority to AU2003248577A priority Critical patent/AU2003248577A1/en
Publication of WO2004001197A1 publication Critical patent/WO2004001197A1/fr

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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • 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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • 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
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
    • 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
    • F01L1/44—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves
    • F01L1/443—Multiple-valve gear or arrangements, not provided for in preceding subgroups, e.g. with lift and different valves comprising a lift valve and at least one rotary valve

Definitions

  • the invention concerns a "Four stroke engine with unique valve per cylinder on which the admission and evacuation flux separation is made by butterfly valves "
  • This solution may be used both for Diesel engine and petrol engine.
  • the engine destination is : industry, agriculture, transport (auto, navy, aircraft)
  • the flux separation is made as following :
  • the evacuation gallery 4 is opened by the butterfly valve no.6.
  • the butterfly valve no.5 is closed in order to keep away the burned gas from the admission galleiy.
  • the admission galleiy no 3 is opened by the admission butterfly valve no.5, the burned gas being separated by the closed evacuation butterfly valve no.6 that closes the evacuation gallery no.4.
  • the unique valve no 2 is controlled by the cam 14, the admission butterfly valve is controlled by cam 35 (picture 5).
  • the evacuation butterfly valve is controlled by the cam 36 (picture 7).
  • the camshaft 13 has 3 cams (picture 12), one into the center, the unique valve cam 2, respectively cam 14- and one side and another, being symmetric, the admission cam 35 and the evacuation cam 36.
  • the camshaft has its rotation 1/2 from the crankshaft rotation, depending on the solution chosen by the constructor, the transmission of the movement is made by a pinion chain, distribution belt or distribution chain.
  • the construction comprises also some tappets glass type and the push rod.
  • the unique valve rocker arm will be straight and the rocker arms for the butterfly valves will have their arms forming an angle till 90 degree, angle that depends on the length of the adjusting (coupling) rod.
  • the admission butterfly valve opening 5 is controlled as following(picture 5):
  • the opening of the evacuation valve 6 is made by the order given by cam 36 for the first part of the detente interval.
  • the evacuation butterfly valve is entirely opened. It results a very small gasodynamic leaking on the route.
  • the unique valve 2 opened with the adequate advance en conformity with the cam 14 profile imposed by the distribution diagram.
  • the evacuation closing is made with a corresponding delay after PMS, by the evacuation butterfly valve 6.
  • the closing delay is imposed by the cam 36 profile.
  • the raising height for the valve 2 from seat 27 at PMS is given by the profile of cam 14.
  • That chosen depends on the height of the burning chamber 24 from piston 23, height that is imposed by the compression rapport of the petrol engine.
  • the admission gallery 3- the admission butterfly valve 5- the unique valve 2- the cylinder 22.
  • the admission duration - the admission angle interval - ⁇ opening advance of the admission (realized by the opening of the admission butterfly valve 5) CA+
  • the opening advance of the admission is realized by the admission butterfly valve 5 controlled in conformity with the distribution diagram by cam 35. It follows the piston stroke from PMS to PMI 180 * CA when both, the unique valve 2 and the admission butterfly valve 5, are opened.
  • the admission closing is made with the corresponding delay after PMI by the unique valve 2 that gets down on the seat 27 at the command of cam 14, in conformity with the distribution diagram.
  • the admission butterfly valve 5 is to be closed after the unique valve 2 is closed on the last part of the compression stroke.
  • the good filling and evacuation permit a high turn over of the thermic cycle and a high specific power for the "engine with four strokes with a unique valve on the cylinder that has the separation of the admission flux respectively of the evacuation flux is made by butterfly valves" in comparison with the engine with four strokes with admission and evacuation valve.
  • valves permit the covering of a large area of
  • the valves type 1 (picture 1 ) are disk type with a reduced thickness and they are recommended to be used at engines with a cylinder capacity till 2 liters.
  • valves type 2 (picture 2) and the valves type 3 (picture 4) are recommended for engines with a medium and high capacity respectively from 2 liters till 1000 liters.
  • valves type 2 area realized from stainless steel by forge together with the shaft - they are easy to be manufactured, and easy to be mounted.
  • the mounting is made on the superior part of the cylinder headl using the gallery access through the cylinder bore 31 realized for the admission and also for the evacuation gallery.
  • the butterfly valve type 2 is recommended to be used at marine engines and for engines used for special equipment.
  • valves ensure a laminated leaking into the gallery. It is not recommended bigger angles than 45 degrees because the valve may be too long.
  • the optimum valve for evacuation is type 3 with the sitting angle -4- between
  • valves type 1 for admission and butterfly valves type 3 for the evacuation.
  • the evacuation valve 3 is strong and it may be manufactured through forge from refractory stainless steel and than it may be processed.
  • the mounting is very easy being executed through the gallery, its fixing being made with rivets 25.
  • valves Using the valves, light elements with a complete opening, very fast one with big surfaces, we can obtain minimum gasodynamic resistances on the admission way respectively on the evacuation way.
  • the butterfly valves have a deflecting role and they laminate the fluid reducing the turbulence and making a better leaking.
  • valves are moving so fast because the fluid speed into the gallery goes to 0.
  • the burning chamber is a compact one with minimum external areas for the given volume, fact which decreases the heat transfer, the temperature of the unique valve 2 influences positively the burning process for both engines :
  • the distribution 5 jets into the air mass are producing a homogenous mixture, fact that conducts to a short and complete burn of the fuel.
  • the longer jet route inside the combustion chamber 24doesn't lead to the rebound phenomena with effect as non-homogeneity of the mixture.
  • the kindling delay is a minimum one because of the temperatures of the piston head and of the unique valve. The result is a quiet work and specific fuel consumption reduced.
  • sparking plug 42 mounted instead of the injector, to initiate the spark.
  • the position of the injector 41 or of sparking plug 42 is on the cool part of the cylinder, respectively on the admission gallery 3 allowing a work at high temperatures of the sparking plug and the injector and an easy access for mounting and disassembling.
  • Picture 1 Cross section through the engine with a unique valve equipped with valve type 1.
  • Picture 4 section made in accordance with AA plan through the cylinder head of the unique valve engine equipped with butterfly valves type 3 1. cylinder head
  • Picture 10 the view of the rocker arm; partial section. 43 spherical head
  • Picture 12 partial view of the camshaft for one cylinder camshaft driving cam of the unique valve cam for the driving of the admission valve cam for the driving of the evacuation valve slide bearing of the cam shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

L'invention concerne un moteur à quatre temps possédant une soupape unique sur le cylindre, pour lequel le flux d'admission respectivement la séparation de flux d'évacuation est réalisée par des volets obturateurs. Selon l'invention, le moteur est équipé d'un cylindre (1) possédant une soupape (2) unique, bivalente, dans laquelle la séparation de flux est réalisée par un volet obturateur (6) pour l'évacuation et, en fonction du type d'allumage, moteur diesel ou moteur à essence, le volume de la chambre de combustion (24) est différent, la tête de cylindre (1) étant équipée d'un injecteur de carburant (41) ou d'une bougie d'allumage (42) montée latéralement.
PCT/RO2003/000009 2002-06-24 2003-06-24 Moteur a quatre temps a une seule soupape en tete par cylindre WO2004001197A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003248577A AU2003248577A1 (en) 2002-06-24 2003-06-24 Four stroke engine with unique overhead valve per cylinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RO200200900 2002-06-24
ROA200200900 2002-06-24

Publications (1)

Publication Number Publication Date
WO2004001197A1 true WO2004001197A1 (fr) 2003-12-31

Family

ID=29997635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RO2003/000009 WO2004001197A1 (fr) 2002-06-24 2003-06-24 Moteur a quatre temps a une seule soupape en tete par cylindre

Country Status (2)

Country Link
AU (1) AU2003248577A1 (fr)
WO (1) WO2004001197A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020443A1 (de) * 2006-05-03 2007-11-08 Möllmann, Jochen Querströmkrümmer für Verbrennungsmotore, insbesondere mit Einventiltechnik
US20110277711A1 (en) * 2010-05-13 2011-11-17 Gonigman Itzhak Method and system for internal combustion engine
RU2515686C1 (ru) * 2012-10-29 2014-05-20 Валерий Мухтарович Урусов Двигатель внутреннего сгорания
EP2808504A1 (fr) * 2013-05-29 2014-12-03 Mica Stanojevic Moteur à combustion
RU2675647C2 (ru) * 2017-05-29 2018-12-21 Александр Васильевич Ноздричев Газораспределительный механизм двигателя внутреннего сгорания

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2215579A (en) * 1937-11-20 1940-09-24 Eichelberg Gustav Cylinder head for four-stroke internal combustion engines
DE3716505A1 (de) * 1987-05-16 1988-12-01 Wiho Dipl Ing Stuempel Verfahren zur verschleissminderung der steuereinrichtungen bei brennkraftmaschinen und vorrichtung zur durchfuehrung des verfahrens
DE3812988A1 (de) * 1988-04-19 1989-11-02 Michael Dipl Ing Heinemann Verbrennungskraftmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2215579A (en) * 1937-11-20 1940-09-24 Eichelberg Gustav Cylinder head for four-stroke internal combustion engines
DE3716505A1 (de) * 1987-05-16 1988-12-01 Wiho Dipl Ing Stuempel Verfahren zur verschleissminderung der steuereinrichtungen bei brennkraftmaschinen und vorrichtung zur durchfuehrung des verfahrens
DE3812988A1 (de) * 1988-04-19 1989-11-02 Michael Dipl Ing Heinemann Verbrennungskraftmaschine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020443A1 (de) * 2006-05-03 2007-11-08 Möllmann, Jochen Querströmkrümmer für Verbrennungsmotore, insbesondere mit Einventiltechnik
US20110277711A1 (en) * 2010-05-13 2011-11-17 Gonigman Itzhak Method and system for internal combustion engine
EP2569518A2 (fr) * 2010-05-13 2013-03-20 Itzhak Gonigman Procédé et système pour moteur à combustion interne
CN103003535A (zh) * 2010-05-13 2013-03-27 伊扎克·古尼曼 一种用于内燃机的方法和系统
US8607763B2 (en) * 2010-05-13 2013-12-17 Itzhak GONIGMAN Method and system for internal combustion engine
EP2569518A4 (fr) * 2010-05-13 2014-03-19 Itzhak Gonigman Procédé et système pour moteur à combustion interne
RU2515686C1 (ru) * 2012-10-29 2014-05-20 Валерий Мухтарович Урусов Двигатель внутреннего сгорания
EP2808504A1 (fr) * 2013-05-29 2014-12-03 Mica Stanojevic Moteur à combustion
RU2675647C2 (ru) * 2017-05-29 2018-12-21 Александр Васильевич Ноздричев Газораспределительный механизм двигателя внутреннего сгорания

Also Published As

Publication number Publication date
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