WO2005098216A1 - Moteur endothermique montant un arbre d'entrainement de disque a deux pistes sinusoidales opposees - Google Patents

Moteur endothermique montant un arbre d'entrainement de disque a deux pistes sinusoidales opposees Download PDF

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Publication number
WO2005098216A1
WO2005098216A1 PCT/IT2005/000142 IT2005000142W WO2005098216A1 WO 2005098216 A1 WO2005098216 A1 WO 2005098216A1 IT 2005000142 W IT2005000142 W IT 2005000142W WO 2005098216 A1 WO2005098216 A1 WO 2005098216A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
cylinder
opposed
drive shaft
tab
Prior art date
Application number
PCT/IT2005/000142
Other languages
English (en)
Inventor
Michele Tropea
Alessandra Maria Serafina Tropea
Original Assignee
Michele Tropea
Tropea Alessandra Maria Serafi
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 Michele Tropea, Tropea Alessandra Maria Serafi filed Critical Michele Tropea
Publication of WO2005098216A1 publication Critical patent/WO2005098216A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/26—Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F01B3/0005—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • F01B3/045—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by two or more curved surfaces, e.g. for two or more pistons in one cylinder

Definitions

  • this engine uses, as a device to convert reciprocating motion into a rotational one, a drive shaft with two opposed tracks each having an almost sinusoidal shape (fig. 1 Tab. 1).
  • the pistons act directly without using any connecting rods (fig. 19 Tab. 7).
  • the engine, object of this study, is a double effect two-cycle engine, and therefore, it is equipped with two headed cylinders that have a combustion chamber at each end.
  • the drive shaft Figure 1 table 1 shows the new engine drive shaft that, in its simplest shape, consists of an axle that has an orthogonal and concentric disk fixed in the mid of I the axle itself. Besides, in the peripheral part and on each of the opposed sides of the disk, two opposed ring-like tracks (“track a" and “track b") are arranged. They have an almost sinusoidal shape (fig. 2 Tab. 2). Each of these sinusoidal tracks consists of an equal number of periods that can suitably vary according to the different technical characteristics of the engine.
  • Every period is constituted by a downward track sector, going from the maximum to the minimum point, followed by an upward track sector, going from the minimum to the maximum point, and it has a length corresponding to the distance between two following maximum points of the track (fig. 3 Tab. 2).
  • the height between the maximum and the minimum point of the period corresponds to one piston stroke.
  • each track is constituted by six periods.
  • the drive shaft, object of this invention can be considered like a "Rotor", at all times cinematically and statically balanced, since it does not possess any eccentric masses in respect of the rotation axis.
  • Fig. 18 Tab. 6 shows how the "Rotor" is fixed on the crankcase in a very simple way, that is, only by means of two thrust bearings put on both sides of the disk and two deep groove ball bearings on both sides of the drive shaft.
  • the cylinder In the figures 6, 7, 8, 9, 10 of Tab. 4 it is represented, in a schematic manner, a cylinder that shows technical characteristics that are symmetrical to the mid-plane orthogonal to the axis of the cylinder itself. In particular every cylinder, of a suitable length, presents at both ends a combustion chamber. Moreover, each opposed half of the cylinder is equipped with inlet and exhaust openings for the gases. These opening are needed for the working of the double effect two-cycle engine.
  • the above described cylinder has in its mid part a wide lateral opening that is oriented towards the drive shaft when the cylinder is mounted on the crankcase (Fig. 18 Tab. 6).
  • This opening gives the cylinder a "C" shape and has a height slightly superior to the distance of the two opposed sinusoidal tracks of the drive shaft and a depth slightly superior to the radius of the cylinder itself.
  • the cylinder is air cooled, it will be equipped with common cooling fins. Otherwise, if the cylinder is cooled by the circulation of a coolant, it will be equipped with an adeguate jacket having one inlet and one outlet pipe for the coolant circulation.
  • the piston is represented as a cylindrical unit consisting of two opposed heads joined by a single skirt. Each piston head has gas rings as well as bosses for the housing of the piston pin. In the piston, the two piston pins are arranged in parallel at a fixed distance between them. It has been noticed that every piston pin rather than working as a joint axis for the piston rod, (as it happens in the traditional engines) it acts as the axis of a track runner bearing.
  • each piston being situated with track runner bearings on the double track of the "Rotor"
  • the engine cycles are carried out since each of the two tracks of the "Rotor", which have a sinusoidal shape, shows for every period a downward track sector followed by an upward one.
  • the tracks are circular, the periods follow one another over and over again according to a closed cycle. Therefore, through the repeated downward and upward movement on the tracks of the Rotor, the reciprocating motion of the pistons occurs.
  • TDC the track runner bearing of a piston is found to be at the beginning of the downward track sector
  • BDC the other track runner bearing of the same piston
  • the combustion stroke occurs at the same time in a couple of diametrically opposed cylinders in order (1-1 bis, 2-2bis, 3-3bis) to balance the vibrations on the "Rotor" as drawn in the fig. 18 of Tab. 6 and Fig. 19 Tab 7.
  • the engine at peak speed will perform approximately 500/600 revolutions per minute, with a somewhat soft and balanced engine working.
  • the engine can perform 72 useful phases for each drive shaft revolution.
  • the new type of engine is somewhat simplified and has therefore remarkable advantages in comparison to the traditional ones.
  • the engine does not need either the complex system of distribution (such as valves, camshaft, etc.) or the crank system (such as crankshaft, connecting rods, fly-wheel, counterbalances, etc).
  • the engine has a more compact drive shaft that can be considered as a cinematically and statically balanced "Rotor”.
  • the pistons are the only masses having reciprocating motion.
  • the pistons produce inertia forces that are partly positive because they are used favourably in the compression stroke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un nouveau type de moteur qui utilise, comme dispositif de transformation d'un mouvement alternatif en un mouvement de rotation, un arbre d'entraînement à deux pistes opposées qui ont toutes deux une forme presque sinusoïdale. Sur les pistes de cet arbre d'entraînement, les pistons agissent directement sans aucune tige de connexion. L'invention concerne un moteur à deux temps double effet qui est équipé de deux cylindres à têtes ayant une chambre de combustion à chaque extrémité. Dans le cas précité, les forces d'expansion des gaz agissent en alternance sur les côtés opposés du piston et les temps utiles suivent dans chaque cylindre à une fréquence d'une combustion pour chaque course du piston.
PCT/IT2005/000142 2004-04-05 2005-03-15 Moteur endothermique montant un arbre d'entrainement de disque a deux pistes sinusoidales opposees WO2005098216A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITCT20040004 ITCT20040004A1 (it) 2004-04-05 2004-04-05 Motore endotermico con albero motore a disco dotato di due piste sinusoidali contrapposte
ITCT2004A000004 2004-04-05

Publications (1)

Publication Number Publication Date
WO2005098216A1 true WO2005098216A1 (fr) 2005-10-20

Family

ID=34963049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2005/000142 WO2005098216A1 (fr) 2004-04-05 2005-03-15 Moteur endothermique montant un arbre d'entrainement de disque a deux pistes sinusoidales opposees

Country Status (2)

Country Link
IT (1) ITCT20040004A1 (fr)
WO (1) WO2005098216A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016110A (en) * 1960-03-08 1962-01-09 Karl L Herrmann Friction reducing apparatus for cam engines
WO1980002438A1 (fr) * 1979-05-03 1980-11-13 F Waller Moteur a combustion interne a cylindres paralleles
DE3022190A1 (de) * 1980-06-13 1982-08-19 Schmitt, Heinz-Joachim, 6500 Mainz Kolbenmaschine, insbesondere verbrennungsmotoren
EP0137621A1 (fr) * 1983-08-15 1985-04-17 Andreas Demopoulos Moteurs à combustion interne
US20040035385A1 (en) * 1999-03-23 2004-02-26 Thomas Charles Russell Single-ended barrel engine with double-ended, double roller pistons

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016110A (en) * 1960-03-08 1962-01-09 Karl L Herrmann Friction reducing apparatus for cam engines
WO1980002438A1 (fr) * 1979-05-03 1980-11-13 F Waller Moteur a combustion interne a cylindres paralleles
DE3022190A1 (de) * 1980-06-13 1982-08-19 Schmitt, Heinz-Joachim, 6500 Mainz Kolbenmaschine, insbesondere verbrennungsmotoren
EP0137621A1 (fr) * 1983-08-15 1985-04-17 Andreas Demopoulos Moteurs à combustion interne
US20040035385A1 (en) * 1999-03-23 2004-02-26 Thomas Charles Russell Single-ended barrel engine with double-ended, double roller pistons

Also Published As

Publication number Publication date
ITCT20040004A1 (it) 2004-07-05

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