WO2013050852A2 - High efficiency rotary inner combustion engine - Google Patents
High efficiency rotary inner combustion engine Download PDFInfo
- 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
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.
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)
Country | Link |
---|---|
EP (1) | EP2764210A2 (en) |
IT (1) | ITMI20111828A1 (en) |
WO (1) | WO2013050852A2 (en) |
Cited By (5)
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)
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)
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 |
-
2011
- 2011-10-07 IT IT001828A patent/ITMI20111828A1/en unknown
-
2012
- 2012-10-02 EP EP12780808.7A patent/EP2764210A2/en not_active Withdrawn
- 2012-10-02 WO PCT/IB2012/001949 patent/WO2013050852A2/en active Application Filing
Non-Patent Citations (1)
Title |
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None |
Cited By (6)
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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