WO2008018842A1 - Moteur à combustion quatre temps avec segment rotatif dans le mécanisme de distribution - Google Patents

Moteur à combustion quatre temps avec segment rotatif dans le mécanisme de distribution Download PDF

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Publication number
WO2008018842A1
WO2008018842A1 PCT/SK2007/050018 SK2007050018W WO2008018842A1 WO 2008018842 A1 WO2008018842 A1 WO 2008018842A1 SK 2007050018 W SK2007050018 W SK 2007050018W WO 2008018842 A1 WO2008018842 A1 WO 2008018842A1
Authority
WO
WIPO (PCT)
Prior art keywords
segment
rotating
shank
rotating cone
cone segment
Prior art date
Application number
PCT/SK2007/050018
Other languages
English (en)
Inventor
Jozef Cekan
Original Assignee
Jozef Cekan
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
Priority claimed from SK117-2006A external-priority patent/SK287587B6/sk
Priority claimed from SK50008-2007A external-priority patent/SK500082007A3/sk
Application filed by Jozef Cekan filed Critical Jozef Cekan
Publication of WO2008018842A1 publication Critical patent/WO2008018842A1/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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/08—Rotary or oscillatory slide valve-gear or valve arrangements with conically or frusto-conically shaped 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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/16—Sealing or packing arrangements specially therefor

Definitions

  • the present invention relates to a four-stroke combustion engine with a rotating segment in distributing mechanism used as a driving mechanism in compression ignition and spark-ignition versions.
  • a four- stroke combustion engine with a rotating segment in distributing mechanism which according to present invention consists of a cylinder block accommodating a piston, enclosed in upper part by a head, characterised in that said head has in its lower part a bed in form of a truncated cone whereto at least one sucking port, at least one exhaust port, and an ignition member mouth, said bed accommodating a hollow rotating cone segment with an open base, said rotating cone segment's peripheral cone area corresponding with a shape of the bed, said rotating cone segment containing in its upper part a shank extending through a shank opening into the peripheral area of the head, whereas said rotating cone segment has at least one segmental opening associated with the sucking port, or exhaust port, or ignition member, said shank being interconnected with a timing mechanism which provides rotated and travel movements of said rotating cone segment against the head during expansion cycles of the four-stroke combustion engine.
  • Axial bearing accommodated on the upper part of the head in the area of the shank opening secures a rotation of the rotating cone segment and the shank thereof, said shank being topped by a thrust plate, whereas a prestressed spring for a reverse movement of the rotating cone segment is embedded between said axial bearing and trust plate.
  • At least one sealing ring with a compression spring is located in a groove in the bed around the sucking port, and/or exhaust port, and/or ignition member.
  • the shank sealing may consist of at least one circular projection formed on the upper part of the rotating cone segment, which circular projection engages into at least one circular groove formed in the bed.
  • the projection formed on the upper part of the piston partially corresponds with a lower profile of the rotating cone segment, said projection containing a diffusion- shaped blast channel which mouths by its narrower part in the closest vicinity between the surface area of the projection and ignition member.
  • the most substantial improvement over the prior art is an activation cross-section of the inlet and exhaust openings which affords lower resistance and thus more effective combustion process.
  • the second substantial improvement is a short vertical travel of the rotating cone segment what significantly reduces noise level of the combustion engine.
  • the arrangement of the rotating system of the distributing mechanism according to the present invention affords a high degree of compression depending on the shape of piston cone projection what also contributes to a more effective combustion process.
  • the higher engine power of the four-stroke combustion engine affords a higher specific output, lower fuel consumption, lower noise level, and thus reduces negative environmental impacts.
  • Fig. 1 is a cross-sectional view of a combustion engine
  • Fig. 2 is a view looking onto the arrangements of selected parts of a head
  • Fig. 3 shows dynamic process of the combustion engine during individual expansion cycles
  • FIG. 1 consists of a cylinder block 2 accommodating a piston 3 with a connecting rod 4, said cylinder block 2 being enclosed in its upper part by a head 1, whilst a cylinder head gasket 5 is located between the cylinder block 2 and head 1.
  • the lower part of the head 1 contains a bed 22 in form of a truncated cone terminated by a sucking port 6, exhaust port 7, and ignition member J ⁇ , said ignition member J ⁇ being represented by a spark plug.
  • the bed 22 accommodates a hollow rotating cone segment & with an open base, said rotating cone segment's peripheral cone area corresponding with a shape of the bed 22.
  • the rotating cone segment & contains in its upper part a shank 9 extending through a shank opening 24 into the peripheral area of the head 1.
  • the rotating cone segment & has one segmental opening 23 associated with the sucking port 6, or exhaust port 7, or ignition member 1£.
  • the shank 9 is interconnected with a timing mechanism 19 which provides rotated and travel movements of the rotating cone segment & against the head 1 during expansion cycles of the combustion engine.
  • the outer part of the head 1 contains a reverse mechanism enclosed by a distributing mechanism cover JA
  • the reverse mechanism contains an axial bearing 10 accommodated in the area of a shank opening 24 to secure a frictionless rotation of the rotating cone segment £ and the shank 9 thereof, said shank 9 being topped by a thrust plate 13 which is fixed in the upper part of the shank 9 by a two-part cone insert H, whilst a prestressed spring 12 for a reverse movement of the rotating cone segment £ is embedded between the axial bearing 10 and trust plate 13.
  • Sealing rings 16 with compression springs j/7 are located in grooves in the bed 22 around the sucking port 6 and exhaust port 7 and ignition member 18. Between the bed 22 and the rotating cone segment & there is a shank sealing 15.
  • said shank sealing 15 having form of a labyrinth sealing with two circular projections formed on the upper part of the rotating cone segment &, which circular projections engage into two circular grooves formed in the bed 22.
  • a projection 20 formed on the upper part of the piston 3 partially corresponds with a lower profile of the rotating cone segment &, said projection 20 containing a diffusion- shaped blast channel 21 which mouths by its narrower part in the closest vicinity between the surface area of the projection 20 and ignition member 1&.
  • the shank 9 is interconnected with a timing mechanism 19 which provides rotated and travel movements of said rotating cone segment & against the bed 22 in the head 1 during individual expansion cycles of the four-stroke combustion engine.
  • a timing mechanism 19 which provides rotated and travel movements of said rotating cone segment & against the bed 22 in the head 1 during individual expansion cycles of the four-stroke combustion engine.
  • the segmental opening 23 overlaps with the suck port 6 in position I. or with the ignition member 1£ in position II. or with exhaust port 7 in position III.
  • the rotating cone segment & is arrested in the bed 22 by the prestressed spring 12 and sealed by means of the sealing rings 16 of the shank sealing 15 and the circumferential seal 25.
  • the timing mechanism 19 uses an impulse force E 4 to overdrive directive force of the prestressed spring 12 to temporarily release the rotating cone segment & and shift it by a stroke ⁇ .
  • the timing mechanism is controlled by electronic logic in relation to revolution of a crankshaft of the engine.
  • a suction cycle (Fig. 3a) the segmental opening 23 occurs in position I., overlapping the sucking port 6 through which a combustion mixture flows into a combustion chamber, whilst the exhaust port 7 with the ignition member IS remain covered.
  • compression and expansion cycles Fig.
  • the segmental opening 23 occurs in position IL, overlapping the ignition member IS which initiates expansion in the chamber, whilst the sucking port 6 and the exhaust port 7 remain covered.
  • the segmental opening 23 occurs in position III., overlapping the exhaust port 7 through which a combustion gases exits the combustion chamber, whilst the suction port 6 with the ignition member IS remain covered.
  • a head 1 and a cylinder block 2 are separated by a cylinder head gasket 5.
  • a movable piston 3 embedded, and connected to the crankshaft via a connecting rod 4.
  • a rotating cone segment S a central part of the distribution system is located in the head 1, with one segmental opening 23 in its conical section, whose close fit to the bed 22 in the lower part of the head 1 is ensured by means of a prestressed spring 12, placed between the rest of the axial bearing JO and the thrust plate 13, that is held in the shank 9 of the rotating cone segment S via a two- part cone insert H.
  • the combustion chamber is sealed by a shank sealing 15 in the upper part of the rotating cone segment S, and in the position of the sucking port 6, exhaust port 7, and ignition member IS sealing rings 16 pressed against the outer casing of the rotating cone segment S by a compression spring J/7. Ignition is provided by the ignition member IS, represented by a spark plug that, during the compression stroke, when the piston 3 is in the top dead centre, ignites the compressed fuel-air mixture in the determined combustion space in the rotating cone segment S and the conical projection 20 of the piston 3.
  • the conical projection 20 of the piston 3 is fitted with a diffusion-shaped blast channel 2L
  • This distribution system is also provided with a timing mechanism 19, whose task is to shift the segmental opening 23 of the rotating cone segment S to appropriate position of the combustion engine stroke, and a impulse force F 4 generator, that, during the moment of change of the engine stroke affects the shank 9 of the rotating cone segment S, and so produces a gap, that is identical to the extent of the vertical stroke ⁇ of the rotating cone segment S, between the bed 22 of the head 1 and the rotating cone segment S-
  • External parts of the distribution system are covered by a distributing mechanism cover 14, as schematically described on the drawing, to ensure sufficient lubrication.

Abstract

Moteur à combustion quatre temps avec un segment rotatif dans le mécanisme de distribution, comprenant un bloc (2) cylindre accueillant un piston (3), enfermé dans la partie supérieure par une tête (1), ladite tête (1) comportant dans sa partie inférieure un banc (22) avec un port (6) d'aspiration, un port (7) d'échappement, et un élément (18) d'allumage. Le banc (22) accueille un segment (8) creux de cône rotatif avec une ouverture (23) segmentaire associée avec le port (6) d'aspiration, le port (7) d'échappement, ou l'élément (18) d'allumage. Une tige (9) d'un segment (8) de cône rotatif est reliée avec un mécanisme (19) de temporisation pour fournir des mouvements de déplacement et de rotation dudit segment (8) de cône rotatif contre la tête (1) durant les cycles d'expansion du moteur à combustion. Une saillie (20) formée sur la partie supérieure du piston (3) contient un canal (21) d'explosion.
PCT/SK2007/050018 2006-08-09 2007-08-02 Moteur à combustion quatre temps avec segment rotatif dans le mécanisme de distribution WO2008018842A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SKPP117-2006 2006-08-09
SK117-2006A SK287587B6 (sk) 2006-08-09 2006-08-09 Štvortaktný spaľovací motor s rotačným kužeľovým segmentom v rozvodovom mechanizme
SK50008-2007A SK500082007A3 (sk) 2007-07-20 2007-07-20 Štvortaktný spaľovací motor s rotačným segmentom v rozvodnom mechanizme
SKPP50008-2007 2007-07-20

Publications (1)

Publication Number Publication Date
WO2008018842A1 true WO2008018842A1 (fr) 2008-02-14

Family

ID=38621180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2007/050018 WO2008018842A1 (fr) 2006-08-09 2007-08-02 Moteur à combustion quatre temps avec segment rotatif dans le mécanisme de distribution

Country Status (2)

Country Link
CZ (1) CZ19452U1 (fr)
WO (1) WO2008018842A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE499448A (fr) *
FR424010A (fr) * 1909-12-10 1911-05-03 Alfred Kirby Huntington Perfectionnements aux moteurs à combustion interne
GB396641A (en) * 1932-02-27 1933-08-10 Henri Albaret Improvements in or relating to rotary valves for internal combustion engines
GB573685A (en) * 1944-07-20 1945-11-30 Aspin Frank Metcalfe Improvements in or relating to lubrication control means for valves for internal combustion engines and the like
DE3527618A1 (de) * 1985-08-01 1986-05-07 Karl Dipl.-Ing. 7799 Illmensee Christ Automatisch abdichtendes dreh-ventil fuer viertakt-kolbenmotoren
EP0285363A2 (fr) * 1987-04-03 1988-10-05 Jaguar Cars Limited Soupapes rotatives
DE102005050052A1 (de) * 2005-10-19 2006-05-04 Raimund Brenner Selbstzünderkolben für Verbrennungsmotore mit mindestens einer großen Öffnung und mindestens einer kleinen Öffnung in dem Selbstzünderkolben, um nach dem zweiten Takt durch hoch komprimierte heiße Luft die Selbstzündung auszulösen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE499448A (fr) *
FR424010A (fr) * 1909-12-10 1911-05-03 Alfred Kirby Huntington Perfectionnements aux moteurs à combustion interne
GB396641A (en) * 1932-02-27 1933-08-10 Henri Albaret Improvements in or relating to rotary valves for internal combustion engines
GB573685A (en) * 1944-07-20 1945-11-30 Aspin Frank Metcalfe Improvements in or relating to lubrication control means for valves for internal combustion engines and the like
DE3527618A1 (de) * 1985-08-01 1986-05-07 Karl Dipl.-Ing. 7799 Illmensee Christ Automatisch abdichtendes dreh-ventil fuer viertakt-kolbenmotoren
EP0285363A2 (fr) * 1987-04-03 1988-10-05 Jaguar Cars Limited Soupapes rotatives
DE102005050052A1 (de) * 2005-10-19 2006-05-04 Raimund Brenner Selbstzünderkolben für Verbrennungsmotore mit mindestens einer großen Öffnung und mindestens einer kleinen Öffnung in dem Selbstzünderkolben, um nach dem zweiten Takt durch hoch komprimierte heiße Luft die Selbstzündung auszulösen

Also Published As

Publication number Publication date
CZ19452U1 (cs) 2009-03-23

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