WO2012032552A1 - Moteur rotatif à combustion interne doté d'un réducteur et de pistons qui commandent le cycle - Google Patents

Moteur rotatif à combustion interne doté d'un réducteur et de pistons qui commandent le cycle Download PDF

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Publication number
WO2012032552A1
WO2012032552A1 PCT/IT2011/000294 IT2011000294W WO2012032552A1 WO 2012032552 A1 WO2012032552 A1 WO 2012032552A1 IT 2011000294 W IT2011000294 W IT 2011000294W WO 2012032552 A1 WO2012032552 A1 WO 2012032552A1
Authority
WO
WIPO (PCT)
Prior art keywords
pistons
rotor
combustion engine
internal combustion
drive shaft
Prior art date
Application number
PCT/IT2011/000294
Other languages
English (en)
Other versions
WO2012032552A4 (fr
Inventor
Omar Radice
Original Assignee
Omar Radice
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 Omar Radice filed Critical Omar Radice
Publication of WO2012032552A1 publication Critical patent/WO2012032552A1/fr
Publication of WO2012032552A4 publication Critical patent/WO2012032552A4/fr

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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
    • F02B57/00—Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons
    • F02B57/08—Engines with star-shaped cylinder arrangements
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial 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
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/042—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the connections comprising gear transmissions
    • F01B2009/045—Planetary gearings

Definitions

  • the invention hereby is about a high-efficiency rotary internal combustion engine, with low fuel consumption, low environmental pollution, high reliability, long duration, simple and economic to be produced.
  • the choice is determined by the type of application. In other words, with the same number of cylinders and r.p.m., with respect to a traditional engine, I can differentiate the number of ignitions per revolution, and so, the frequency of intake strokes.
  • Another big advantage is to get the typical good balancing of rotary engines and very reduced reciprocating inertia forces, thanks to limited piston strokes, and to the combination of the two motions: alternate and rotary.
  • FIG.1 and FIG.2 drawings its main components are shown.
  • the rotor (1 ) is rigidly linked on the two sides with, respectively, two internal gears (6), which are supported by rolling-element bearings (6.4), or hydrodynamic friction bearings (bushings); every bearing is housed on the two covers (10).
  • the covers fasten the stator (16) with bolts.
  • Rotor and stator are respectively eccentric.
  • a track (14), concentric with the stator (16), is made of 2 rings (check drawings: FIG.1 , FIG.2, FIG.6).
  • the external ring is inserted into the internal diameter of the stator, the internal ring is supported by a housing obtained inside the covers, (drawing FIG.2), so that it is extended inside the stator too. Rings can be either fix, or supported by hydrodynamic bushings (both externally and internally), so that they can rotate in order to reduce friction further.
  • the external pistons (3) which are contained in the cylinders (4), are driven through a pin (13), or it will be a slider supported hydrodynamically.
  • Drawing FIG.5 shows how the reducer is made of several gears. Such gears are used to connect, with a certain transmission ratio and rotation verse (not restrictive) the rotor (1) and the drive shaft (5). It is important to remark that I can create several engines with various intake frequencies, just properly designing the rotation verses, the transmission ratios, and the intake and exhaust cycles.
  • both the rotor and the drive shaft rotate clockwise, with a 1 :3 ratio.
  • the rotor fulfills one complete revolution in correspondence of 3 drive shaft revolutions.
  • the rotation of described parts is caused by the pushing force in between the pistons (2) and (3), check drawings FIG.1 , FIG.2, generated by the ignition of intaken fuel.
  • FIG.7 shows the air-fuel mixture intake and the burst gas exhaust cycles. Since we are talking about a four-stroke engine, the cycles are: intake, compression, power (with gas expansion), and exhaust. As it can be noticed on drawing FIG.7 (they can be discerned also on drawing FIG. I), there are an intake (11 ) and an exhaust (12) duct paths, assembled on covers. The air-fuel mixture intake in the cylinders (4) and the gas exhaust are allowed by an opening (15) on each cylinder, that can be viewed also on drawings FIG.1 and FIG.4.
  • the fixed electrical contact (9.1 ), properly insulated, is assembled on one of the two covers, and it is shown also on drawing FIG.2.
  • All the pistons (2) and (3) have piston rings (and oil control ring) of circular shape, the same of traditional existing pistons (check drawing FIG.6 rings (3.1 ) and drawing FIG.3 rings (2.1 )).
  • the external pistons (3) have a hemispherical shape (3.2) on the pistons crown.
  • the rotor is shown, with the openings (15) surrounded by circular oil rings.
  • the rings rotate, dragging on an area of the cover (of an appropriate material), in order to separate the areas dedicated to the duct paths (11 e 12) fastened on the cover from the areas of rotor, stator and covers dampened by the lubrication oil.
  • the oil accomplishes the additional task to take away generated heat.
  • the oil is put into circulation by one or more electrical pumps, or driven by the drive shaft itself. More heat is removed from the cooling liquid circulating in the hollow spaces passing through the external layer of the stator (16), as shown on drawing FIG.1. Therefore the drive shaft accomplishes the additional task to spin possible additional members (pumps and/or other%), but mainly to transmit the motor driving force to a gearbox or similar.
  • the drive shaft has instead completed 3 whole rotations, and the pistons have fulfilled the cycle sequence (intake, compression, power and exhaust) totally 3 times. And so 1 rotation of the rotor is given by 3 ignitions. If compared with a traditional engine, this is a 3 cylinders engine, with one ignition of each piston at every 3 revolutions of the drive shaft, and at every revolution of the rotor. Find here below a sizing table with some possible engine lay-out configurations based on the design of the reducer and on the number of pistons, with consequent different frequencies (more configurations are possible)
  • FIG.5 reducer description.
  • the gear (6.1), with 30 teeth, is installed on the drive shaft (5).
  • the transmission ratio in this case (not restrictive), is 3:1 , that is: 3 revolutions of the drive shaft make 1 rotor revolution. Both rotate clockwise (not restrictive).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)
  • Transmission Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un moteur rotatif à combustion interne comprenant un rotor (1) qui tourne, à l'intérieur duquel se trouve une pluralité de pistons (2) et (3) qui coulissent dans un mouvement alternatif, au sein du cylindre respectif (4). Au centre du rotor, tourne à son tour l'arbre de transmission (5), qui est connecté au rotor par un réducteur (6). L'arbre de transmission (5) est relié aux pistons (2) avec les bielles (7). Le plus intéressant est la présence des pistons (3), qui se déplacent également dans les cylindres (4). Dans chaque piston (3) est vissée une bougie d'allumage (8). La bougie d'allumage (8) reçoit l'électricité requise pour l'explosion du carburant, passant sur un contact fixe (9), fixé sur le couvercle (10) correctement isolé. Le couvercle (10) comporte également les conduits d'admission (11) et l'échappement (12). Les pistons (3), avec leur goupille (13), sont guidés par un rail (14), excentrique au centre du rotor. Le mouvement de ces pistons (3) dégage, durant le cycle, une ouverture (15) ménagée dans chaque cylindre (4). Cette ouverture permet d'ajuster les cycles d'admission et d'échappement du moteur aux moments établis. Le mécanisme dans son intégralité est contenu dans un stator (16), enfermé entre deux couvercles. Les couvercles soutiennent le rotor (1), l'arbre de transmission (5) qui transmet la puissance, et les engrenages du satellite, tous dotés de paliers ou de bagues. L'engrenage interne (6) est centré et relié de façon rigide au rotor (1).
PCT/IT2011/000294 2010-09-09 2011-08-09 Moteur rotatif à combustion interne doté d'un réducteur et de pistons qui commandent le cycle WO2012032552A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2010A001632A IT1401921B1 (it) 2010-09-09 2010-09-09 Motore endotermico rotativo con riduttore e con pistoni che comandano le fasi del ciclo.
ITMI2010A001632 2010-09-09

Publications (2)

Publication Number Publication Date
WO2012032552A1 true WO2012032552A1 (fr) 2012-03-15
WO2012032552A4 WO2012032552A4 (fr) 2012-08-09

Family

ID=43738869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2011/000294 WO2012032552A1 (fr) 2010-09-09 2011-08-09 Moteur rotatif à combustion interne doté d'un réducteur et de pistons qui commandent le cycle

Country Status (2)

Country Link
IT (1) IT1401921B1 (fr)
WO (1) WO2012032552A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506893A (en) * 2012-10-11 2014-04-16 Tristan Peter Cooper Rotary radial two stroke internal combustion engine comprising intake and exhaust port timing control system
CN103790703A (zh) * 2014-01-24 2014-05-14 何学文 一种转子式内燃机
CN110185536A (zh) * 2019-07-03 2019-08-30 吕国良 转子组、转子内燃机、车辆、飞行器及船舶

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB146197A (en) * 1917-12-17 1921-10-25 Eugen Ludwig Mueller Improvements in and relating to internal combustion engines
FR624291A (fr) * 1926-03-04 1927-07-12 Turbo-moteur à explosion pouvant s'appliquer également aux moteurs fixes à explosions
US4256061A (en) * 1977-09-30 1981-03-17 Lappa Cleto L Two cycle rotary internal combustion engine and cylinder sealing ring arrangement therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB146197A (en) * 1917-12-17 1921-10-25 Eugen Ludwig Mueller Improvements in and relating to internal combustion engines
FR624291A (fr) * 1926-03-04 1927-07-12 Turbo-moteur à explosion pouvant s'appliquer également aux moteurs fixes à explosions
US4256061A (en) * 1977-09-30 1981-03-17 Lappa Cleto L Two cycle rotary internal combustion engine and cylinder sealing ring arrangement therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506893A (en) * 2012-10-11 2014-04-16 Tristan Peter Cooper Rotary radial two stroke internal combustion engine comprising intake and exhaust port timing control system
CN103790703A (zh) * 2014-01-24 2014-05-14 何学文 一种转子式内燃机
CN110185536A (zh) * 2019-07-03 2019-08-30 吕国良 转子组、转子内燃机、车辆、飞行器及船舶

Also Published As

Publication number Publication date
WO2012032552A4 (fr) 2012-08-09
IT1401921B1 (it) 2013-08-28
ITMI20101632A1 (it) 2012-03-10

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