WO1991015660A1 - Rotary internal combustion engine (ric-engine) - Google Patents
Rotary internal combustion engine (ric-engine) Download PDFInfo
- Publication number
- WO1991015660A1 WO1991015660A1 PCT/EP1990/000579 EP9000579W WO9115660A1 WO 1991015660 A1 WO1991015660 A1 WO 1991015660A1 EP 9000579 W EP9000579 W EP 9000579W WO 9115660 A1 WO9115660 A1 WO 9115660A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- engine
- vanes
- cover
- channel
- 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
- F01C1/30—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
- F01C1/3448—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 with axially movable vanes
-
- 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
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to a rotary internal combustion engine, which accomplishes its thermodynamic cycles during its continuous and uniform motion of revolutions.
- the usual internal combustion engines (Otto-Engines) based on piston and cylender to obtain an alternate increasing and decreasing of surrounded volumes, 5 which is an unavoidable requirement to achive mechanical work in the field of com ⁇ bustion engines. Realization of this idea is done, in that all required reciprocalities have been realised into the moving parts, while the stationary parts have been kept in uniform configuration and constant shape during various processes.
- This fact does not imply piston assembly, that performs compressions and expansions , but 0 also comprises other equipments such as devices for opening and closing the valves in limited times.
- the invention characterised as in the demands, with attention to its per ⁇ fect unusual configuration, solves most of the problems and therefore presents a favourable high efficiency compared to Otto-Engines, in that crank shaft, pistons, 0 cylenders, valves and relative accessaries have been completely eliminated.
- Rotary internal combustion engine (Ric-Engine) consists of a casing with cylen- derical bore and a ring gear located in its rear end,a rear end cover, a power end cover with unusual form, a rotor equiped with some devices, and a planetary gearing at rear end of rotor in conjunction with casing gear. All other auxiliary 5 equipments such as coil, distributor, alternator, carburator , oilpump, starter etc. remain basically unchanged in shape for this engine.
- Figure 1 is an illustration of an assembled rotary internal combustion engine 0 (Ric-Engine) , in which its auxiliary equipments are not included.
- Figure 3 represents configuration of power end cover.
- Figure 4 designates a cross section of planetary gearing system at rear of rotor in conjection with stationary ring gear fixed in casing.
- Figure 6 relates to vacant spaces between rotor channel and top surface of wavy C component after matching. This figure will be used for calculation of volumes, compression ratios, and moving area under dynamic forces.
- the drawings represent a rotary internal combustion engine (Ric-Engine) with cylenderical-bore casing 1 in which rests a rotor 2 on end bearings 15 by means of fixed shaft 5 through center of its longitudinal axis.
- Bearings 15 have been installed in their housings in hubs of power end cover 3 and rear endcover 6.
- the rear end cover is provided to bear the bearing 15 and keep the engine sealed at its rear end.
- Power end cover 3 is a solid body with a broad circular wavy component
- the wavy component 4 with its smooth surfaces seats acts as a counterpart into a circular channel provided in power end of rotor 2.
- Interior surfaces of rotor channel have to be as smooth as surfaces of wavy component, and tolerances are 0 films of lubricating oil.
- the exhaust opening 14 is a slotted hole on the right surface of lower convex and has a length that possesses
- Each of these helical gears 11 is fixed on a small shaft 12, which is equiped with a crank 10, in such a manner that longitudinal axis of crankshaft 12 represents a secant line on cross sectional area of the rotor and meets perpendicularly the longitudinal axis of belonging cells, while the plane of helical gear 11 is perpendicular to cross section of rotor. All planetary gears are
- casing gear 13 which is a ring with enterior helical gear teeth and fixed in casing 1, adjacent to rear end cover 6.
- the ratio of pitch diameter and helix angle between planetary gears 11 and casing gear 13 is such that one revolution of rotor causes two revolutions for each of planetary gears 11.
- crank 10 produce reciprocal motions for the vanes by means of slider crank or 5 scotch yoke mechanisms.
- Ric-Engine makes the method of operation more illustrative and comprehensible fig 5, in which it is visible that chambers change their volumes reciprocally during revolutions of rotor 2. Sucking process by a chamber A begins when its forgoing passed over the point 185 , and this process 0 will continue the second vane of that chamber pased over the point 237,° while the preceding chamber B accomplished its sucking cycle and is now compressing the gas. Third chamber C started with combustion, where as chamber before it D is near to end for this process, and this will continue until its forgoing vane is reached the point 122. Fifth chamber E is exhausting the gas through opening 14 5 into atmosphere and terminated as its second vane passed over the point 175 *
- V volume of considering chamber
- W the breadth of wavy component or width of channel
- a m the mean area of chamber seperated by two vanes
- D m the middiameter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The invention relates to a rotary internal combustion engine, in that, thermodynamics cycles perform during its uniform motion of revolution. In this engine the required reciprocalities have been realised mostly into stationary parts than moving. Therefore rotor (2) is free to rotate about its fixed axis and rests on end bearings (15) installed in hubs of rear end (6) and power end cover (3), by means of an axial shaft (5) through its longitudinal axis. Rear end cover (6) is also to hold engine casing (1) at its rear end sealed. Power end cover (3) is a solid body to seal the cylindrical-bore casing (1) at its front end, and consisting of a broad circular component (4) with a continuous sinusoidal surface at its power end, with which its smooth surfaces and tolerance of oilfilms seats as a counterpart into a circular channel provided in front end of rotor (2). Top surface of this circular component (4), with respect to the plane of cover, along radii is flat and along circumference comprising two concave and two convex curves, such that their heights are functions of arclength only, (fig. 5, 6), or Y = C + h/2 sin 4/Dx, where Y = height, C = constant, h/2 = amplitude of curves, D = diameter chosen within the wavy component (4) and x⊂R,O « x « Dπ, R is set of real numbers.
Description
Rotary Internal Combustion Engine (Ric-Engine)
The invention relates to a rotary internal combustion engine, which accomplishes its thermodynamic cycles during its continuous and uniform motion of revolutions. The usual internal combustion engines (Otto-Engines) based on piston and cylender to obtain an alternate increasing and decreasing of surrounded volumes, 5 which is an unavoidable requirement to achive mechanical work in the field of com¬ bustion engines. Realization of this idea is done, in that all required reciprocalities have been realised into the moving parts, while the stationary parts have been kept in uniform configuration and constant shape during various processes. This fact does not imply piston assembly, that performs compressions and expansions , but 0 also comprises other equipments such as devices for opening and closing the valves in limited times.
Obviously the usual internal combustion engines with their innate problems such as existing dead centers, periodic mass movements, and ununiform motions present high mechanical irreversibilities and hence low efficiencies. Likewise be¬ 5 cause of its inborn shape, based on piston and cylenders, does not allow any basic reform or large alterations to it.
The invention characterised as in the demands, with attention to its per¬ fect unusual configuration, solves most of the problems and therefore presents a favourable high efficiency compared to Otto-Engines, in that crank shaft, pistons, 0 cylenders, valves and relative accessaries have been completely eliminated.
Rotary internal combustion engine (Ric-Engine) consists of a casing with cylen- derical bore and a ring gear located in its rear end,a rear end cover, a power end cover with unusual form, a rotor equiped with some devices, and a planetary gearing at rear end of rotor in conjunction with casing gear. All other auxiliary 5 equipments such as coil, distributor, alternator, carburator , oilpump, starter etc. remain basically unchanged in shape for this engine.
One way of carrying out the invention is described below with reference to drawings, which illustrate one specific embodiment, in that:
Figure 1 is an illustration of an assembled rotary internal combustion engine 0 (Ric-Engine) , in which its auxiliary equipments are not included.
Figure 2 illustrates exterior and interior configuration of rotor, arrangement of vane assemblage and connection of vane assemblies to small crankshafts and their conjunctions with planetary gears.
Figure 3 represents configuration of power end cover. 5 Figure 4 designates a cross section of planetary gearing system at rear of rotor in conjection with stationary ring gear fixed in casing.
Figure 5 is an illustration of rotary internal combustion engine (Ric-Engine) in extended form, which represents the method of its operation.
Figure 6 relates to vacant spaces between rotor channel and top surface of wavy C component after matching. This figure will be used for calculation of volumes, compression ratios, and moving area under dynamic forces.
The drawings represent a rotary internal combustion engine (Ric-Engine) with cylenderical-bore casing 1 in which rests a rotor 2 on end bearings 15 by means of fixed shaft 5 through center of its longitudinal axis. Bearings 15 have been
installed in their housings in hubs of power end cover 3 and rear endcover 6. The rear end cover is provided to bear the bearing 15 and keep the engine sealed at its rear end. Power end cover 3 is a solid body with a broad circular wavy component
4 at its power face, which represents a continuous spatial sinusoidal surface, that with respect to plane of cover as a base line in extended form comprising two convex and two concave curves (in case of small and medium size of engines only), and that the height of the sinusoidal surface with respect to the plane of cover as a base line is defined as; y = C + - sm —x 0 where, y =height , C = constant, = amplitude of Curve
D=diameter of considering circle,with respect to the center of cover, within the wavy component, and xeR, 0 < x < Dπ, which depends on amplitude and arclengh only. Fig 6, or in other words, all 5 points on the surface of the wavy component along one radius have the same heights.
The wavy component 4 with its smooth surfaces seats acts as a counterpart into a circular channel provided in power end of rotor 2. Interior surfaces of rotor channel have to be as smooth as surfaces of wavy component, and tolerances are 0 films of lubricating oil.
Power end cover 3 comprising also an intake 17, an exhaust 14 opening, and a chamber for sparking plug 16. Intake 17 and exhaust 14 openings are slot¬ ted holes, which are provided on surface of the wavy component throughout the cover.Assuming the engine in horizontal situation and that its direction of rota-
2κ tion be clockwise, then a vertical line through convex components and a horizental line through concaves will coincide the longitudinal axis of engine perpendicularly. With these assumptions and that the conventional zero angle of rotation be on a radius along midpoints of the upper convex surface, the exhaust opening 14 is a slotted hole on the right surface of lower convex and has a length that possesses
30 the arc between 122 and 175,while intake opening 17 is on the left of lower convex and its length posses the arc between 185°and 237 throughout the cover. Spark¬ ing plug will locate somewhere about 20 on right of upper convex, when ignition occurs.
It requires also that copressed gas , at top left of upper convex , have a passage
35 way to flow to the right, where combustions occur , fig. 5 and 6. For this purpose the higher surface of upper convex have to be grinded off in accordance with curvature in order to obtain an optimum distance between the surface of upper convex and the surface of channel floor. The amount of grinding off is a function of volume and linear velocity of gas in that region. Rotor 2 is equiped with a
A0 circular channel at its power end. This channel with its rectangular cross section is devided into five equal parts, with respect to arclength, by means of five slotted holes , which are provided radially in the channel along the width of its floor throughout. In these slotted holes take place five vanes 8 with reciprocal motions parallel to the longitudinal axis of rotor.Rear end of each vane 8 is fixed to a
vane assembly 9 ,which is a mediate device to hold the vane in right position and in addition prepares an initial forward push to vane to keep its tip in steady contact with pathway . this is possible by means of a spring , which is installed into the vane assembly , at rear end face of vane. Each vane assembley is placed into a cylenderical cell, which is opposite to slotted hole and its longitudinal axis parallel to that of rotor. These cells are housings for vane assemblies and suitable guide surfaces for them. Moreover to prevent any penetration of gas from channel through slotted holes into cells, there are sealing rings 7 that are installed in the cells around the slotted holes.
10 Surrounded volume between the surfaces of the channel and top surface of the wavy component, separated by two neighbouring vanes is called here a process chamber or chamber. A good contact between vane tips and sinusoidal surface requires an optimum roundness for the tips with respect to curvatures of the path.
Reciprocal motions for the vanes is achieved by planetary gears 11 mounted
Λ c at rear of the rotor. Each of these helical gears 11 is fixed on a small shaft 12, which is equiped with a crank 10, in such a manner that longitudinal axis of crankshaft 12 represents a secant line on cross sectional area of the rotor and meets perpendicularly the longitudinal axis of belonging cells, while the plane of helical gear 11 is perpendicular to cross section of rotor. All planetary gears are
20 geard in casing gear 13, which is a ring with enterior helical gear teeth and fixed in casing 1, adjacent to rear end cover 6. The ratio of pitch diameter and helix angle between planetary gears 11 and casing gear 13 is such that one revolution of rotor causes two revolutions for each of planetary gears 11. By revolution of gears 11, crank 10 produce reciprocal motions for the vanes by means of slider crank or 5 scotch yoke mechanisms.
An extended representative of Ric-Engine makes the method of operation more illustrative and comprehensible fig 5, in which it is visible that chambers change their volumes reciprocally during revolutions of rotor 2. Sucking process by a chamber A begins when its forgoing passed over the point 185 , and this process 0 will continue the second vane of that chamber pased over the point 237,° while the preceding chamber B accomplished its sucking cycle and is now compressing the gas. Third chamber C started with combustion, where as chamber before it D is near to end for this process, and this will continue until its forgoing vane is reached the point 122. Fifth chamber E is exhausting the gas through opening 14 5 into atmosphere and terminated as its second vane passed over the point 175 *
The axised pressure in chambers, such as compression and combustion pres¬ sures, under restriction of surroundings, effect on emerged surfaces of vanes only. Hence the resultant force on rotor by each chamber is obtained as a product of the pressure in that chamber and differential of emerged surfaces of belonging vanes. 0 A simple way for calculation of volumes, which will be used for further calcu¬ lations such as compression ratio and efficiency, is obtained by the use of a basic formula which defines the height of the sinusoidal surface. In that case the rotor channel in conjunction with the wavy component is represented in extended form on rectangular coordination, such that abscisse represents the idsurface of the
channel floor as its circumference, fig 6, then, h ( . 4
WA„ --JX 1 + sin xj dx
D m
Where, V=volume of considering chamber, W=the breadth of wavy component or width of channel, Am = the mean area of chamber seperated by two vanes, Dm = the middiameter, and
xeR, 0 < x < Dmπ
Where R is the set of real numbers.
For the maximum volume, the vanes of the considering chamber should sur- round a concave surface, such that its vane have the same distance apart from center of concave surface, and for the minimum volume the same method applies, but for a convex surface, fig.6,
Vmax = W x dx
. Wh rx* f 4 \
Vmin -= W x (Am)*s ~- -~- Jχ (l + sm —j dx Compression ratio of a Ric-Engine will be obtained, if only the mean thickness of the vane is determined, in the case where the mean thickness of vane is given by
, _ Dmπ m ~ 50 '
Compression ratio by
Where
{X2 ~ xi) = {X4 ~ 5) = (— - tm), n n=number of chambers, and for the considered case is 5 .
Which is adequate for petrol-engines, and in the case where,
, _ __. lm ~ 25 and n=6
Claims
Claims:
1- Rotary internal combustion engine (Ric-Engine) with uniform motions of revolutions comprising a casing (1) with cylenderical bore, a rear end cover (6) a front end cover (3), a stationary ring gear, with interior helix teeth fixed in casing(l), and a rotor (2) consisting of : - a cylenderical body (2),
-an axial shaft (5) fixed in its longitudinal axis,
- a circular channel with rectangular cross section, that its floor is divided into five equal arclengths, by means of five slotted holes provided radially along width of channel floor, - five vanes (8) situated in the slotted holes, each connected at its rear end to an assemblage (9), which is also connected to a slider crank or scotch yoke mechanism by means of a connecting rod,
- a planetary gearing system at rear part of rotor, comprising five small helical gears (11), each is fixed on a small shaft (12) with a crank (10), that by installation gear in casing gear (13),
- Five sets sealing rings (7) for sealing the slotted holes against penetration of gas from channel,
Characterised, in that, rotor (2) rests by means of its axial shaft (5) and end bearigs (15), which are installed in hubs of rear end (6) and power end cover (3) , in casing (l), whereas planetary helical gears (11) installed on rotor (2) and geared in casing gear (13) will revolve twice during one revolution of rotor, and produce reciprocal motions with aid of cranks (10) , which are components of crank shafts (12). And the vanes (8) situated in slotted holes and individually connected to cranks (10) by means of their mediate devices (9), connecting rods, and slider crank or scotch yoke mechanisms, obtain required reciprocal motion desired by wavy component (4) of front cover (3), that its sinusoidal surface has to be in steady contact with tips of the vane (8) during operation of engine. And the power end cover (3) comprising also a wavy component (4), which is a broad circular body with continueous spatial sinusiodal surface, flat along radii and si- nusoidal along circumference of component (4) . And the wavy component with its smooth surfaces and tolerances of oil-films seats into a circular channel provided in front end of rotor (2) as a counterpart, in such a manner that a vertical line perpendicular to longitudinal axis of engine meets the midpoints on the surface of upper and lower convex curves, while the midpoints on the surfaces of concaves are directed horizontal. And in the case of clockwise rotation of engine its con¬ ventional zero angle is on the radius along midpoints of upper convex surface, two slotted holes provided on either right and left surface of lower convex throughout the cover used as exhaust (14) and intake (17) openings, in which exhaust opening (14) possesses an arc of about 53 from point 122 tol75° and length of intake open- ing (17) comprising an arc of about 52 from point 185° to 237," whereas chamber of sparking plug (16). And the highest points of lower convex surface contact the floor surface of channel to prevent any flow of exhaust gas into intake space, while that of upper convex is grinded off to provide a passageway for flowing compressed gas from left to right, where combustion occurs. And the effect of forces from a
chamber transfered to rotor is the product of pressure in chamber and differential of emerged surfaces of vanes in that chamber.
2- As claimed in claim 1 , in a Ric-Engine characterized above, the power cover (3) consists of a hub as housing for front end bearing (15), and a wavy component (4) at its power face. That is a smooth circular body with broad continuous spatial sinusoidal surface on which all points along radius have same heights. While points along circumference represent sinusoidal curves comprising two concave and two convex curves in which their height is a functuion of arclength only. The wavy component (4) by installation seats as a counterpart into a circular channel provided in power end of rotor (2) with tolerance of lubricating-oil-films between contact surfaces. This is also valid for contact between highest points of lower convex and the surface of channel floor, whereas highest points of the upper convex surface have been grinded off to obtain an optimum passageway for flowing compressed gas from left hand side of upper convex to its right hand side, where combustion occurs(fig. 5 and 6). With respect to conventional zero angle, chamber of sparking plug (16) located on cover at 20 and extends to midsurface of the wavy component, whereas exhaust (14) and intake (17) openings axe on either right or left hand side of the lower convex surface as slotted holes on midcircle along the curvature throughout the cover, such that exhaust opening (14) on midcircle of the wavy component possesses about 53 of arc from point 122βto 175 and intake opening (17) about 52 from point 185 to 237?
3- As claimed in claims 1 and 2, in a Ric-Engine characterized as above , rotor (2) with cylendrical body consists of one or two parts fixed on a shaft (5) through its longitudinal axis. And there provided at its power end a circular channel with smooth surfaces and rectangular cross section , in which seats the wavy component (4) as its counterpart . And the circular channel is divided into five equal parts, with respect to arclength by means of five slotted holes provided radically along width of channel floor throughout, in which slide five vanes (8) with mechanically reciprocal motions in accordance with sinusoidal surface of wavy component (4). Optimum contact between tips of the vane (8) and their pathway is achieved, so that vane tips have optimum roundness according to the curvature of the wavy component, whereas the required steady contact between them and sinusoidal surface is obtaioned by planetary gearing system. This produces the desired reciprocal motions; and with the aid of vane assemblies (9), which axe devices to hold vanes in correct position and to provide an initial forward push to vanes by means of installed springs at rear end of the vanes into vane assemblies (9). Vane assemblies (9) are placed in cylenderical cells , which provided at the other side of channel floor and opposite to slotted holes. They are situated in such a manner that their longitudinal axes are parallel to the longitudinal axis of rotor, and their interior surfaces used as suitable guide surfaces for motions of vane assemblies (9). Each vane assembly has been brought in cnnexion with planetary gearing system, by means of a connecting rod and a slider crank or scotch yoke mechanism. This is connected to crank component (10) of crankshaft (12), installed in rear part of the rotor. Sealings (7), mounted in cells behind the slotted holes, prevent any penetration of gas from channel into the cells.
4- As claimed in claimes 1, 2, and 3, a Ric-Engine characterized above with planetary gearing system for a Ric-Engine comprise a helical ring gear (13) with interior teeth fixed in the casing (1) adjacent to rear end cover (6) . The five plane¬ tary helical gears (11), mounted individually on five small crankshafts (12) , which are also installed in rear part of rotor (2), in such a manner that longitudinal axis of each crankshaft (12) represents a secantline on rotor circle . It intercepts per¬ pendicularly the longitudinal axis of relative cell, whereas the planes of planetary gears (11) after installation are perpendicular to cross section area of the rotor, or likewise parallel to its longitudinal axis. The planetary gears (11) geared in casimg geax (13), have such ratio of pitch diameter and helix angle, that for one revolution of rotor, there exist exactly two revolutions for each of planetary gears. These axe fixed on crank shafts (12) . The crank (10) as components of shafts (12) produce the desired reciprocal motions for vanes (8) .
5- As claimed in claims 1, 2, 3, and 4, a Ric-Engine for larger size and higher c output is characterized as follows:
The ratio of its concave and convex surfaces to number of its vanes (or cham¬ bers) for petrol engines can be determined as n( 2, 2 : 5) and for Diesel engines by n( 2, 2 : 6), where , eN, 1 < n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP1990/000579 WO1991015660A1 (en) | 1990-04-11 | 1990-04-11 | Rotary internal combustion engine (ric-engine) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP1990/000579 WO1991015660A1 (en) | 1990-04-11 | 1990-04-11 | Rotary internal combustion engine (ric-engine) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1991015660A1 true WO1991015660A1 (en) | 1991-10-17 |
Family
ID=8165478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1990/000579 WO1991015660A1 (en) | 1990-04-11 | 1990-04-11 | Rotary internal combustion engine (ric-engine) |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1991015660A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004556A (en) * | 1969-09-08 | 1977-01-25 | Rolf Alfons Pfeiffer | Rotary internal combustion engine of axially sliding vane type |
| FR2498695A1 (en) * | 1981-01-26 | 1982-07-30 | Stephanois Rech Mec | IMPROVEMENTS TO REMOVABLE CABINETS FOR A PRESSURIZED FLUID ROTARY MACHINE SUCH AS A PUMP, ENGINE OR COMPRESSOR |
| EP0164317A1 (en) * | 1984-05-09 | 1985-12-11 | Sergio Zaccaron | A reciprocating engine with revolving cylinders |
| EP0274400A2 (en) * | 1987-01-08 | 1988-07-13 | Wimmer-Heusch, Friederike | Rotary-piston engine |
-
1990
- 1990-04-11 WO PCT/EP1990/000579 patent/WO1991015660A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004556A (en) * | 1969-09-08 | 1977-01-25 | Rolf Alfons Pfeiffer | Rotary internal combustion engine of axially sliding vane type |
| FR2498695A1 (en) * | 1981-01-26 | 1982-07-30 | Stephanois Rech Mec | IMPROVEMENTS TO REMOVABLE CABINETS FOR A PRESSURIZED FLUID ROTARY MACHINE SUCH AS A PUMP, ENGINE OR COMPRESSOR |
| EP0164317A1 (en) * | 1984-05-09 | 1985-12-11 | Sergio Zaccaron | A reciprocating engine with revolving cylinders |
| EP0274400A2 (en) * | 1987-01-08 | 1988-07-13 | Wimmer-Heusch, Friederike | Rotary-piston engine |
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