WO2015122971A1 - Moteur rotatif à combustion interne - Google Patents

Moteur rotatif à combustion interne Download PDF

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Publication number
WO2015122971A1
WO2015122971A1 PCT/US2014/072815 US2014072815W WO2015122971A1 WO 2015122971 A1 WO2015122971 A1 WO 2015122971A1 US 2014072815 W US2014072815 W US 2014072815W WO 2015122971 A1 WO2015122971 A1 WO 2015122971A1
Authority
WO
WIPO (PCT)
Prior art keywords
engine
rotary engine
blades
fins
combustion
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.)
Ceased
Application number
PCT/US2014/072815
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English (en)
Inventor
Angelo BRACALENTE
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 WO2015122971A1 publication Critical patent/WO2015122971A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
    • 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
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F02B2053/005—Wankel engines

Definitions

  • This invention relates broadly to the art of rotary mechanisms. More particularly, this invention relates to the art of internal combustion engines of the rotary type. BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 is a plan view of a cross section of the rotor within the engine block of the inventive rotary engine.
  • Figure 2 is a plan view of one of the arms/spokes of the rotor of Figure 1 together with its corresponding retractable blade/vane/fin.
  • Figure 3 is plan view of a cross section of another embodiment of a rotor within the engine block of the inventive rotary engine.
  • DETAILED DESCRIPTION OF THE INVENTION Referring more specifically to Figures 1, and 3 they generally depict the internal combustion rotary engine in accordance with the present invention.
  • reciprocating engines of the exothermic type such as a vapor engine or internal combustion such as the two cycle or four cycle piston engines.
  • such motor or engine is composed of a combination of elements designed and assembled in such a way, that it results into a device capable of developing a driving force and at the same time already capable to directly transmit to the crankshaft its rotary motion.
  • Its rotary motion is produced right from the very beginning as a consequence of its primary activity.
  • Exactly for this reason in this engine is absent the first phase of reciprocating or alternating motion, that phase which is characteristic of piston engines. In the present invention this phase is eliminated from everything. It is eliminated altogether.
  • this rotary engine through the four phases of their Otto Cycle/Diesel cycle, using the various fuel blends available on the market, becomes developed a couple and therefore a driving force.
  • the rotary engince comprises a set of elements, arms or spokes and
  • the arms(shafts) which are fixed and the blades/vanes/ fins which are mobile, are exactly those elements which are connected to the crank shaft, and are capable at the same time to transform the energy to mechanical energy and from there to work and to directly transmit the rotary movement through such connection in a particular mode and to allow use of such energy without the means of omer mechanisms.
  • this type of rotary engine presents overall characteristics of extreme simplicity, lightness and compactness. In other words, as a result of its construction, this rotary engine is simple, light and compact.
  • the mono block or the engine block of the rotary engine of the present invention has an ellyptical and flattened shape without any other mechanisms on the outside, other than those mechanisms that are necessary and indispensable for the engine's normal functioning or operation.
  • the rotary engine of the present invention has no valves, neither for the intake nor for the exhaust. Also completely eliminated are camshafts, lifters, springs, as well as any related distribution control ,ade up of chains, timing belts or gears.
  • the rotary engine of the present invention when compared to a 2cycle piston engine has axial dimensions that are only 1/3 those of the 2-cycle piston engine; It is 1/3 the size of a 2 cycle piston engine. And if compared to a 4- cycle piston engine, it has half the size of a 4 cycle piston engine.
  • the rotary engine's reduction in size translates to asavings in weight and the possibility of being manufactured using a large part of light alloy materials, thereby eliminating eventual vibrations or parasitic friction.
  • the rotary engine of the present invention no longer comprises elements that move in an assymerrical manner, it is no longer has the negative characteristic of absorbing a certain amount of driving force. Nor does it have any imbalances and vibrations. Nor does it cause too much noise. In fact the rotary engine of the present invention is much more balanced than other types of engines constructed up until now.
  • phase of fuel injection to obtain a better vaporization of the fuel, it can be effected either directly in the combustion chamber, or in special pre-chambers at the points of entry nozzles of injectors where either liquid or gaseous fuels can be introduced, depending on availability or on acquisition prices at the contingent moment of interest.
  • the fuels could be methane or natural gas, or other liquid fluids, particularly for the types of heavier fuels and polluting with exhaust gas, compounds from relevant fractions of particulate matter, of
  • crank shaft Within the engine block, centrally positioned on bearings, prelubricated and sealed, the crank shaft is rigidly connected to a flywheel with which it forms a unitary body.
  • the flywheel consists of 8 intersecting spokes or arms arranged such that they form a central hub at eight equal angles, and a corona, i.e., an outer ring at the outer perimeter such that it retains the spokes in place at equal angles from each other.
  • the flywheel comprises 16 arms or intersecting spokes.
  • the spokes or arms function as the seat or track within which blades/vanes or fins retract, extend or otherwise telescope in and out such that said blades or fins freely move within them and can either be retracted within said spokes or extended beyond them, beyond the outer ring of said flywheel and extending until they touch the inner surface of the inner wall of the engine block.
  • the outer ring or corona of the flywheel keeps everything together as one, and also play the role of an inertial body capable of mamtaining the most possible uniform rotary movement, even if such movement is characterized by continuous irregularities, before and after the combustion, with a succession of accelerations and decelerations in the course of the phases of the cycles of engine operation.
  • the perfect functioning of the entire mechanism is the result of coordinated and synchronized mo vements of the various elements that comprise the rotary engine, i.e. the eight arms or spokes that connect to the vanes/fins/blades and the crank shaft, while at the same time mamtaining the function of continuously guiding the retraction and extension of the blades/vanes/fms in a radial direction, from the center or hub of the flywheel past its outside perimeter, towards the internal surface of the internal wall of the engine block and vice versa, and the continuous entrainment of them along the ellyptical path set in the internal area of the engine block.
  • the blades or fins or vanes perform or establish an ellyptical path by rubbing through cetrifugal force their outer edge on the inner surface which forms the internal perimeter of the engine block, such path naturally also having an ellyptical shape.
  • the centrifugal force is not the only force to act on the movement of the blades, vanes or fins.
  • the rotary engine of the present invention revs at high speeds, a consequence of which is excessive rubbing of the blades/vanes/fins on the internal perimeter surface of the engine block.
  • the spokes or arms are provided with a sort of obligatory guides or stops, such that the blades inertial action caused directly by their mass and multiplied or increased by their rotational velocity or speed is contained.
  • the spokes are provided with stops which prevent the fins or blades from extending out beyond a certain perimeter past the outer corona of the flywheel.
  • the precision the movements of the blades, vanes, fins is preset and defined within a well limited path, such that they are made to perform their run in the shape of ellipses and thereby eliminating every possibility of forcing them beyond the specified limits of movement.
  • the blades/vanes/fins are controlled by two small bearings, placed at the end closest to the crank shaft. Every one of the eight blades/vanes/fins is forced to perform the path in the shape of ellipses and at the same time manages to maintain a seal without excessive pressure, due to centrifugal force against the sliding band, i, e. , the internal surface of the engine block.
  • these metallic blades/vanes/fins proceed with preset movements and defined, in sucession, their movements following a path that is obligatory and pre-established and
  • the eight blades/fins/vanes perform at the same time, an action that is a combination of two simultaneous movements: a) they complete their retilinear/transversal/ radial coming and going, while they retract and extend along the tracks found in the arms or spokes connected to the crank shaft; and b) continue to advance along the path of ellipses in accordance with the phases of the four or eight stroke combustion cycle.
  • every one of the chambers defined by each pair of blades, vanes or fins passes in succession through the four phases of intake, compression,
  • injection/combustion and discharge/exhaust with a complete total of 16 cycles complete (8x2) effectuated by all of the eight chambers in one compete cycle/turn, for good two time, being provided with two combustion chambers.
  • this engine does two cycles.
  • sealing rings and segments are placed within grooves located on the thickness of the three side of the blades or vanes and the other part, being the rings, on the circumference board of the two surfaces opposite the flywheel.
  • They are all elements of metal having a rectangular cross-section, relatively free- floating, with a minimum clearance, in order to adapt to surfaces with which they come into contact, overall; all in one united movement with the arms or spoke, with the flywheel and with the crank shaft.
  • each combustion chamber is divided axially into two parts
  • half-chambers the trigger of the initial combustion takes place by means of spark only in the most advanced semi-chamber. In this way, during the combustion phase of the mixture of air-fuel, one is successful at
  • Each combustion chamber is demarcated or defined by six (6) surfaces, identified as follows: every pair of fins provides two(2) surfaces; one surface from the portion of the ellyptical perimeter surface, inner surface of the engine block; one surface from the axial portion of the cylindrical surface of the outer ring of the flywheel; and two surfaces from the two portions parallel planes defined by the two internal faces of the two side covers (2).
  • every pair of fins provides two(2) surfaces; one surface from the portion of the ellyptical perimeter surface, inner surface of the engine block; one surface from the axial portion of the cylindrical surface of the outer ring of the flywheel; and two surfaces from the two portions parallel planes defined by the two internal faces of the two side covers (2).
  • each, in a groove, formed in part on the outer crown/ring of the flywheel and in part on the inner surface of the lids of the engine block, can, also, be integral with one of the two surfaces; for each side of the crown there is one, or more segments that turn, while the segments fixedly and solidy connected with the two covers remain stopped; they do not move.
  • the lightness and the overall solidness of the components are maximized, while the rotary engine of the present invention is also provided with an ease of assembly during the constructive phase or follow up substitution of used up pieces, in case of repair.
  • the rotary engine of the present invention with the most diversified commercially available fuels both liquid and gaseous including those that are considered alternative fuels.
  • these jets are supplied through holes provided in the cavity of the crank shaft and directed precisely towards the micro bearing (upper and lower) and towards the back of the blades/fins/vanes.
  • the lubrication could still be insufficient, especially for the sealing segments placed at the peripheral end, opposite of the vane, where the cycle speed is the highest and therefore the friction of the rubbing is at the highest, one can prepare an additional oil flow.lt is sufficient to connect the two ends of the fin with the pressurized oil, pumped into me cavity of the crank shaft.
  • the standard of the project has a flexibility such that during the development of the engine, in various capacities, more options can always be evaluated. For example, develop the project in order to proceed with the construction of several engines with different capacity and with its relative components REFERED properly; couple, on the same crank shaft two or more "basic engines” of this type, depending on the desired displacement.
  • the rotary engine of the present invention is notable also for a particular specificity: the "small footprint" in relation to the axis of the crank shaft.
  • this specification can be evaluated as characteristic extremely attractive from the economic point of view, for its practicality and its standard production and maintenance quite simple. In fact, it is natural to conceive the idea of being able to use a single "engine block", as the “base” of departure to replicate it in order to create the different displacements programmed for a certain type of car, depending on the class, or segment, that if one prefers, while in the next moment of maintenance, it is easier to find, or store, pieces that are always the same, when it has to do with a mechanism composed of a few elements, replicated for "N" times.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un moteur rotatif à combustion interne comprenant une multiplicité de rayons, de telle sorte que le moteur rotatif peut transformer l'énergie en travail mécanique par transfert de la force d'entraînement générée par celui-ci directement au vilebrequin, sans passer par un mouvement linéaire de va-et-vient tel que cela se produit normalement dans des moteurs alternatif du type exothermique.
PCT/US2014/072815 2013-12-31 2014-12-30 Moteur rotatif à combustion interne Ceased WO2015122971A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361922104P 2013-12-31 2013-12-31
US61/922,104 2013-12-31

Publications (1)

Publication Number Publication Date
WO2015122971A1 true WO2015122971A1 (fr) 2015-08-20

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ID=53800516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/072815 Ceased WO2015122971A1 (fr) 2013-12-31 2014-12-30 Moteur rotatif à combustion interne

Country Status (1)

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WO (1) WO2015122971A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886908A (en) * 1973-10-18 1975-06-03 Ivan Ruzic Rotary internal combustion engine
US4653438A (en) * 1984-02-27 1987-03-31 Russell Robert L Rotary engine
US5509388A (en) * 1994-12-30 1996-04-23 Robert W. Burnett Internal combustion rotary engine
US6035630A (en) * 1995-07-17 2000-03-14 Soos; Sandor Internal combustion rotary engine
US20090223480A1 (en) * 2005-11-23 2009-09-10 Korona Group, Ltd. Internal Combustion Engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886908A (en) * 1973-10-18 1975-06-03 Ivan Ruzic Rotary internal combustion engine
US4653438A (en) * 1984-02-27 1987-03-31 Russell Robert L Rotary engine
US5509388A (en) * 1994-12-30 1996-04-23 Robert W. Burnett Internal combustion rotary engine
US6035630A (en) * 1995-07-17 2000-03-14 Soos; Sandor Internal combustion rotary engine
US20090223480A1 (en) * 2005-11-23 2009-09-10 Korona Group, Ltd. Internal Combustion Engine

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