WO2013050852A2 - High efficiency rotary inner combustion engine - Google Patents

High efficiency rotary inner combustion engine Download PDF

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Publication number
WO2013050852A2
WO2013050852A2 PCT/IB2012/001949 IB2012001949W WO2013050852A2 WO 2013050852 A2 WO2013050852 A2 WO 2013050852A2 IB 2012001949 W IB2012001949 W IB 2012001949W WO 2013050852 A2 WO2013050852 A2 WO 2013050852A2
Authority
WO
WIPO (PCT)
Prior art keywords
engine
rotor
cylinder
cavity
high efficiency
Prior art date
Application number
PCT/IB2012/001949
Other languages
French (fr)
Other versions
WO2013050852A3 (en
Inventor
Augusto MARIANI
Original Assignee
Mariani Augusto
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 Mariani Augusto filed Critical Mariani Augusto
Priority to EP12780808.7A priority Critical patent/EP2764210A2/en
Publication of WO2013050852A2 publication Critical patent/WO2013050852A2/en
Publication of WO2013050852A3 publication Critical patent/WO2013050852A3/en

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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/02—Radially-movable sealings for working fluids
    • F01C19/06—Radially-movable sealings for working fluids of resilient material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/30—Geometry of the stator
    • F04C2250/301—Geometry of the stator compression chamber profile defined by a mathematical expression or by parameters

Definitions

  • the present invention relates to a high efficiency rotary inner combustion engine.
  • a rotary inner combustion engine does not comprise a piston which is driven with a reciprocating rectilinear movement, but comprises a member rotating about an axis.
  • a well known rotary engine is the Wankel engine, which is supplied through a supply system including a plurality of supplying ports arranged either on the statoric casing (in a peripheral position) or, alternatively, in side plates of the statoric chamber (a side position) and discharges the waste products (exhaust gases) through a discharging system which is likewise provided with a plurality of discharging ports arranged either at a peripheral or a lateral or side position.
  • the aim of the present invention is to provide an improved high efficiency rotary inner combustion engine.
  • a main object of the invention is to provide such a rotary combustion engine adapted to operate with a high operating efficiency for a long operating time, while reducing wear on its main component members.
  • Another object of the present invention is to provide such a rotary engine which may be made by using easily available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
  • Yet another object of the present invention is to provide such a rotary inner combustion engine which, owing to its specifically designed structural characteristics, is very reliable and safe in operation.
  • a high efficiency rotary inner combustion engine characterized in that said engine comprises an engine rotor rotatively turning about a central shaft in a casing or cylinder.
  • Said rotor defines, with said cylinder, at least two opposite combustion chambers.
  • Each said chamber has a complex configuration delimited by a cavity similar to a hollow half-cylinder cavity, adjoining a further cavity delimited by a flat radial wall formed in said rotor.
  • Figure 1 is a cross-sectional view of the rotary inner combustion engine according to the present invention.
  • Figure 2 a further cross-sectional view, taken through the section plane ll-ll of Figure 3, corresponding to the movable band region, of the engine rotor;
  • Figure 3 is a side view of the engine rotor
  • Figure 4 is a further cross-sectional view of the engine rotor; and Figure 5 is a perspective view of the engine rotor.
  • the high efficiency rotary inner combustion engine which has been generally indicated by the reference number 1 , comprises an engine rotor 2 rotatively turning about a central shaft 3.
  • said rotor 2 turns in a casing or cylinder 4 and defines with the latter at least two opposite combustion chambers, indicated by the reference number 5.
  • Each said chamber 5 has a complex configuration delimited by a cavity 6 similar to a hollow half-cylinder cavity, adjoining or fitting with a further cavity delimited by a radial wall 7 formed in said rotor.
  • the subject rotary engine 1 comprises moreover a starting electric motor, not shown in the figures, for driving the driveshaft 3 thereon is keyed a pinion 8 which, through a toothed chain or belt 9, rotatively drives a second pinion 10, supported by a shaft 11 of an air operated blade motor or compressor ⁇ .
  • Said air operated motor 12 draws outside air and conveys the latter, through an air conveying duct 13, into the combustion chamber 5, upon mixing with a fuel coming from a fuel injector 14.
  • said fuel is injected through an inlet valve 15 formed in a flange 16 integral with the cylinder 4.
  • an outlet valve 17 coupled to a silencer or muffler 23 for exhausting the combustion products.
  • the engine rotor 2 comprises at least a pair of radial bands 18 which are housed in dedicated recesses or seats 19 formed on the rotor body. Said rotor 2 comprises moreover a pair of axial bands 20.
  • Said bands are urged to a tightness position by urging springs 21 housed in corresponding spring holders 22.
  • the air operated motor 12 is so driven as to pump air through the duct 13 into the combustion chamber 5.
  • the shaft 3 is so turned as to cause the inlet valve 15 to be closed, thereby the explosion will generate a lever effect, owing to the configuration of the combustion or explosion chamber 5, with a consequent displacement of the shaft to the following exhausting step, the outlet valve 17 being in this period opened.
  • a main feature of the present invention is the specifically designed configuration of the engine rotor and combustion or explosion chambers, characterized by surfaces 6 and 7 and a third fixed surface pertaining to the engine casing.
  • the expanding bands 18 and 20 are urged by the urging springs 21 so as to adhere on the cylinder 4 and flanges 16, for holding all the pressure to be discharged on the driveshaft.
  • a main feature of the springs 21 is their 90° configuration allowing them to simultaneously operate on a radial band and adjacent axial band.
  • the inventive engine as mounted on a motor vehicle will allow the vehicle to cover many miles.
  • the invention has provided an improved high efficiency rotary inner combustion engine which has an operating efficiency much greater than that of conventional rotary engines.
  • the used materials, as well as the contingent size and shapes can be any, depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Automatic Disk Changers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Hydraulic Motors (AREA)

Abstract

A high efficiency rotary inner combustion engine comprises: an engine rotor rotatively turning about a central shaft in a casing or cylinder; said engine rotor defining, with said cylinder, at least two opposite combustion chambers; each said chamber having a complex configuration delimited by a cavity similar to a hollow half-cylinder cavity merging with a cavity delimited by a radial flat wall formed in said rotor; at least a pair of radially extending bands housed in housing seats formed in a body of said rotor; said rotor comprising moreover a pair of axially extending bands.

Description

HIGH EFFICIENCY ROTARY INNER COMBUSTION ENGINE
BACKGROUND OF THE INVENTION
The present invention relates to a high efficiency rotary inner combustion engine.
As it is known, a rotary inner combustion engine does not comprise a piston which is driven with a reciprocating rectilinear movement, but comprises a member rotating about an axis.
A well known rotary engine is the Wankel engine, which is supplied through a supply system including a plurality of supplying ports arranged either on the statoric casing (in a peripheral position) or, alternatively, in side plates of the statoric chamber (a side position) and discharges the waste products (exhaust gases) through a discharging system which is likewise provided with a plurality of discharging ports arranged either at a peripheral or a lateral or side position.
A great drawback of prior rotary engines is that they have a small efficiency, much smaller than that of a like power conventional piston engine.
SUMMARY OF THE INVENTION
Accordingly, the aim of the present invention is to provide an improved high efficiency rotary inner combustion engine.
Within the scope of the above mentioned aim, a main object of the invention is to provide such a rotary combustion engine adapted to operate with a high operating efficiency for a long operating time, while reducing wear on its main component members.
Another object of the present invention is to provide such a rotary engine which may be made by using easily available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
Yet another object of the present invention is to provide such a rotary inner combustion engine which, owing to its specifically designed structural characteristics, is very reliable and safe in operation.
According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a high efficiency rotary inner combustion engine, characterized in that said engine comprises an engine rotor rotatively turning about a central shaft in a casing or cylinder.
Said rotor defines, with said cylinder, at least two opposite combustion chambers.
Each said chamber has a complex configuration delimited by a cavity similar to a hollow half-cylinder cavity, adjoining a further cavity delimited by a flat radial wall formed in said rotor.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the present invention will become more apparent hereinafter from the following disclosure of a preferred, though not exclusive, embodiment of the invention which is illustrated, by way of an indicative but not limitative example, in the accompanying drawings, where:
Figure 1 is a cross-sectional view of the rotary inner combustion engine according to the present invention;
Figure 2 a further cross-sectional view, taken through the section plane ll-ll of Figure 3, corresponding to the movable band region, of the engine rotor;
Figure 3 is a side view of the engine rotor;
Figure 4 is a further cross-sectional view of the engine rotor; and Figure 5 is a perspective view of the engine rotor.
DESCRIPTION OF PREFERRED EMBODIMENTS
With reference to the number references of the above mentioned figures, the high efficiency rotary inner combustion engine according to the present invention, which has been generally indicated by the reference number 1 , comprises an engine rotor 2 rotatively turning about a central shaft 3.
More specifically, said rotor 2 turns in a casing or cylinder 4 and defines with the latter at least two opposite combustion chambers, indicated by the reference number 5.
Each said chamber 5 has a complex configuration delimited by a cavity 6 similar to a hollow half-cylinder cavity, adjoining or fitting with a further cavity delimited by a radial wall 7 formed in said rotor.
The subject rotary engine 1 comprises moreover a starting electric motor, not shown in the figures, for driving the driveshaft 3 thereon is keyed a pinion 8 which, through a toothed chain or belt 9, rotatively drives a second pinion 10, supported by a shaft 11 of an air operated blade motor or compressor ^.
Said air operated motor 12 draws outside air and conveys the latter, through an air conveying duct 13, into the combustion chamber 5, upon mixing with a fuel coming from a fuel injector 14.
More specifically, said fuel is injected through an inlet valve 15 formed in a flange 16 integral with the cylinder 4.
In said flange 16 is moreover arranged an outlet valve 17, coupled to a silencer or muffler 23 for exhausting the combustion products.
According to the present invention, the engine rotor 2 comprises at least a pair of radial bands 18 which are housed in dedicated recesses or seats 19 formed on the rotor body. Said rotor 2 comprises moreover a pair of axial bands 20.
Said bands are urged to a tightness position by urging springs 21 housed in corresponding spring holders 22.
The operation of the rotary inner combustion engine according to the present invention is as follows:
As the starting electric motor drives the transmission consisting of the pinion 8, 10 assembly and chain 9, the air operated motor 12 is so driven as to pump air through the duct 13 into the combustion chamber 5.
In this operating step the gasoline or methane injector 14 is operated.
In a following operating step, the shaft 3 is so turned as to cause the inlet valve 15 to be closed, thereby the explosion will generate a lever effect, owing to the configuration of the combustion or explosion chamber 5, with a consequent displacement of the shaft to the following exhausting step, the outlet valve 17 being in this period opened.
A main feature of the present invention is the specifically designed configuration of the engine rotor and combustion or explosion chambers, characterized by surfaces 6 and 7 and a third fixed surface pertaining to the engine casing.
As the explosion occurs, since the forces of the half-spherical surface are much smaller (they are axially compensated and accordingly nullified) than the forces operating on the flat surface 7, a lever effect is consequently generated causing the shaft to turn in the direction of the forces affecting the surface 7.
The expanding bands 18 and 20 are urged by the urging springs 21 so as to adhere on the cylinder 4 and flanges 16, for holding all the pressure to be discharged on the driveshaft.
A main feature of the springs 21 is their 90° configuration allowing them to simultaneously operate on a radial band and adjacent axial band.
Thus, the inventive engine as mounted on a motor vehicle will allow the vehicle to cover many miles.
It has been found that the invention fully achieves the intended aim and objects.
In fact, the invention has provided an improved high efficiency rotary inner combustion engine which has an operating efficiency much greater than that of conventional rotary engines.
In practicing the invention, the used materials, as well as the contingent size and shapes, can be any, depending on requirements.

Claims

1. A high efficiency rotary inner combustion engine, characterized in that said engine comprises:
an engine rotor (2) rotatively turning about a central shaft (3) in a casing or cylinder (4);
said engine rotor (2) defining, with said cylinder (4), at least two opposite combustion chambers (5);
each said chamber (5) having a complex configuration delimited by a cavity similar to a hollow half-cylinder cavity merging with a cavity delimited by a radial flat wall (7) formed in said rotor (2);
at least a pair of radially extending bands (18) housed in housing seats (19) formed in a body of said rotor;
said rotor comprising moreover a pair of axially extending bands (20).
2. An engine, according to claim 1 , characterized in that said bands are urged to a sealing position thereof by urging springs (21 ) housed in related spring holder elements (22).
3. An engine, according to claim 1 , characterized in that each said spring has a 90° shape so as to allow each said spring to simultaneously operate both on a radial band (18) and on an adjoining axial band (20).
4. An engine, according to one or more of the preceding claims, characterized in that said engine comprises an air operated motor or compressor (12) for supplying said engine with an engine operating fuel.
5. An engine, according to one or more of the preceding claims, characterized in that said engine further comprises a starting electric motor.
6. An engine, according to claim 5, characterized in that said starting electric motor drives a driveshaft (3) thereon is keyed a pinion (8) which, through a toothed chain or belt (9) rotatively drives a second pinion (10) supported by a shaft (11 ) of the air operated motor (12).
7. An engine, according to one or more of the preceding claims, characterized in that said air operated motor (12) sucks outside air mixed with a fuel injected by a fuel injector and conveys said mixed air, through a conveying duct (13), into the combustion chamber (5), said fuel being injected through an inlet valve (15) formed in a flange integral with the cylinder.
8. An engine, according to one or more of the preceding claims, characterized in that said flange (16) further comprises an outlet valve (17) coupled to a silencer assembly (23) for discharging or exhausting combustion products.
PCT/IB2012/001949 2011-10-07 2012-10-02 High efficiency rotary inner combustion engine WO2013050852A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12780808.7A EP2764210A2 (en) 2011-10-07 2012-10-02 Rotary inner combustion engine with a half-cylinder shaped cavity in the rotor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001828A ITMI20111828A1 (en) 2011-10-07 2011-10-07 INTERNAL COMBUSTION ENGINE, ROTARY, HIGH PERFORMANCE.
ITMI2011A001828 2011-10-07

Publications (2)

Publication Number Publication Date
WO2013050852A2 true WO2013050852A2 (en) 2013-04-11
WO2013050852A3 WO2013050852A3 (en) 2013-11-07

Family

ID=45370589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/001949 WO2013050852A2 (en) 2011-10-07 2012-10-02 High efficiency rotary inner combustion engine

Country Status (3)

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EP (1) EP2764210A2 (en)
IT (1) ITMI20111828A1 (en)
WO (1) WO2013050852A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015026878A1 (en) * 2013-08-23 2015-02-26 Global Energy Research Associates, LLC Nanofuel engine apparatus and nanofuel
WO2016020742A1 (en) * 2014-08-06 2016-02-11 Mariani Augusto Pressurized air engine for electric power generators
US9947423B2 (en) 2013-08-23 2018-04-17 Global Energy Research Associates, LLC Nanofuel internal engine
TWI650479B (en) * 2018-04-25 2019-02-11 劉念慈 Combustion chamber of a rotary engine
US11450442B2 (en) 2013-08-23 2022-09-20 Global Energy Research Associates, LLC Internal-external hybrid microreactor in a compact configuration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11557404B2 (en) 2013-08-23 2023-01-17 Global Energy Research Associates, LLC Method of using nanofuel in a nanofuel internal engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927840A1 (en) * 1968-06-06 1969-12-11 Toyo Kogyo Company Ltd Rotary piston internal combustion engine
US4192634A (en) * 1976-12-10 1980-03-11 Campos Associates Rotary internal combustion engine
NL8100705A (en) * 1981-02-13 1982-09-01 Abraham De Kok ROTARY SHOT PUMP OR MOTOR.
CN1046784A (en) * 1989-04-24 1990-11-07 向松 Cut the arc rotary internal combustion engine
DE19644446A1 (en) * 1995-12-21 1997-06-26 Ettner Jakob Rotary piston engine with reduced fuel and oil usage
GB2351533B (en) * 1999-07-01 2003-11-05 Ntn Toyo Bearing Co Ltd Air turbine spindle
WO2008014586A1 (en) * 2006-08-03 2008-02-07 Arthur Isbrecht Rotary internal combustion engine with a circular rotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015026878A1 (en) * 2013-08-23 2015-02-26 Global Energy Research Associates, LLC Nanofuel engine apparatus and nanofuel
US9881706B2 (en) 2013-08-23 2018-01-30 Global Energy Research Associates, LLC Nuclear powered rotary internal engine apparatus
US9947423B2 (en) 2013-08-23 2018-04-17 Global Energy Research Associates, LLC Nanofuel internal engine
US11450442B2 (en) 2013-08-23 2022-09-20 Global Energy Research Associates, LLC Internal-external hybrid microreactor in a compact configuration
WO2016020742A1 (en) * 2014-08-06 2016-02-11 Mariani Augusto Pressurized air engine for electric power generators
TWI650479B (en) * 2018-04-25 2019-02-11 劉念慈 Combustion chamber of a rotary engine

Also Published As

Publication number Publication date
WO2013050852A3 (en) 2013-11-07
ITMI20111828A1 (en) 2013-04-08
EP2764210A2 (en) 2014-08-13

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