Title:
INTERNAL COMBUSTION ROTARY ENGINE WITH VARIABLE COMPRESSION RATIO
Document Type and Number:
WIPO Patent Application WO/1997/010419
Kind Code:
A1
Abstract:
An internal combustion rotary engine with a double gimbal (34) is disclosed where the compression ratio of the engine may be changed while the engine is operating. The engine has two rotors (42, 44), each with two spokes (50, 52). The spokes of the rotors interleave to define chambers within the engine housing. Each rotor is connected to a different shaft (46, 48), one concentrically arranged within the other. As the spokes revolve about their respective shafts, their angular velocity oscillates as a result of the intake, compression and combustion of the fuel-air mixture, and exhausting of waste gases. Because of this oscillation and because each pair of spokes is 90° out of phase with the other pair, the sizes of the chambers alternatively increase and decrease as each spoke alternately catches up with and then falls behind the one adjacent to it.
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Inventors:
SAHAM GHOLAM ALI KIYOUMARS (IR)
Application Number:
PCT/US1996/014844
Publication Date:
March 20, 1997
Filing Date:
September 13, 1996
Export Citation:
Assignee:
LARI HASSAN B (US)
SAHAM GHOLAM ALI KIYOUMARS (IR)
SAHAM GHOLAM ALI KIYOUMARS (IR)
International Classes:
F01C1/063; F01C20/18; F02B53/02; F02B53/14; F02B75/02; (IPC1-7): F02B53/00; F01C1/063
Foreign References:
| GB2249350A | 1992-05-06 | |||
| FR1305810A | 1962-10-05 | |||
| FR767088A | 1934-07-09 | |||
| GB465211A | 1937-05-04 | |||
| FR1011247A | 1952-06-20 | |||
| US2072482A | 1937-03-02 | |||
| US3347214A | 1967-10-17 | |||
| US3712081A | 1973-01-23 | |||
| US3337123A | 1967-08-22 | |||
| US3857369A | 1974-12-31 |
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Claims:
WHAT IS CLAIMED IS:
| 1. | An engine, comprising: a housing having a first end and an opposing second end, said second end having a hole formed therein; a first shaft within said housing and extending through said hole in said second end; a first rotor in said housing and attached to said first shaft so that said first rotor is rotatable with said first shaft; a hollow second shaft in said housing and with said first shaft inside said hollow second shaft, said second shaft rotatable freely with respect to said first shaft, said second shaft extending through said hole in said second end of said housing; a second rotor inside said housing and adjacent said first rotor, said second rotor being attached to said second shaft and rotatable therewith; means carried by said first and said second rotors for defining a plurality of chambers within said housing; means formed in said housing for receiving a combustible fuel; means formed in said housing for venting combusted fuel; means carried by said housing for igniting said fuel; an output shaft; and means connected to said first and said second shafts for coupling said first and said second shafts to said output shaft. |
| 2. | The engine as recited in claim 1, wherein said coupling means is a double gimbal. |
| 3. | The engine as recited in claim 1, wherein said first and said second shafts rotate about a first axis, and said output shaft rotates about a second axis, said first and said second axis being positioned at an angle with respect to each other. |
| 4. | The engine as recited in claim 1, wherein said first and said second shafts rotate about a first axis, and said output shaft rotates about a second axis, said first and said second axis being positioned at an angle with respect to each other, said engine further comprising means for changing said angle. |
| 5. | The engine as recited in claim 1, wherein said defining means further comprises a pair of spokes carried by said first rotor and a pair of spokes carried by said second rotor. |
| 6. | The engine as recited in claim 1 , wherein said defining means further comprises a first pair of spokes carried by said first rotor and a second pair of spokes carried by said second rotor, said first and second pairs of spokes extending axially and radially to said housing from said first and second rotors. |
| 7. | The engine as recited in claim 1, wherein said defining means further comprises a first pair of spokes carried by said first rotor and a second pair of spokes carried by said second rotor, said first and said second pairs of spokes extending axially and radially to said housing from said first and second rotors, spokes of said first pair of spokes interleaving spokes of said second pair of spokes. |
| 8. | An engine, comprising: a housing having a first end and an opposing second end, said second end having a hole formed therein; a first shaft within said housing and extending through said hole in said second end; a first rotor in said housing and attached to said first shaft so that said first rotor is rotatable with said first shaft; a hollow second shaft in said housing and with said first shaft inside said hollow second shaft, said first and said second shafts rotating about a first axis, said second shaft rotatable freely with respect to said first shaft, said second shaft extending through said hole in said second end of said housing; a second rotor inside said housing and adjacent to said first rotor, said second rotor being attached to said second shaft and rotatable therewith; means carried by said first and said second rotors for defining a plurality of chambers within said housing; means formed in said housing for receiving a combustible fuel; means formed in said housing for venting combusted fuel; means carried by said housing for igniting said fuel; an output shaft, said output shaft having a second axis of rotation; means connected to said first and said second shafts for coupling said shafts to said output shaft; and means connected to said housing for moving said first axis at an angle with respect to said second axis. |
| 9. | The engine as recited in claim 8, further comprising sensor means connected to said receiving means for governing movement of said moving means. |
| 10. | The engine as recited in claim 8, wherein said igniting means is a spark plug. |
| 11. | The engine as recited in claim 8, wherein said igniting means further comprises: a combustion chamber formed in said housing; and a fuel injector positioned in said combustion chamber. |
| 12. | The engine as recited in claim 8, wherein said coupling means is a double gimbal. |
| 13. | The engine as recited in claim 8, wherein said defining means further comprises a first pair of spokes carried by said first rotor and a second pair of spokes carried by said second rotor. |
| 14. | The engine as recited in claim 8, wherein said defining means further comprises a first pair of spokes carried by said first rotor and a second pair of spokes carried by said second rotor, said first and said second pairs of spokes extending axially and radially to said housing from said first and second rotors. |
| 15. | An engine, comprising: a housing having a first end and an opposing second end, said second end having a hole formed therein; a first shaft within said housing and extending through said hole in said second end; a first rotor in said housing and attached to said first shaft so that said first rotor is rotatable with said first shaft; a hollow second shaft in said housing and with said first shaft inside said hollow second shaft, said first and said second shafts rotating about a first axis, said second shaft rotatable freely with respect to said first shaft, said second shaft extending through said hole in said second end of said housing; a second rotor inside said housing and adjacent said first rotor, said second rotor being attached to said second shaft and rotatable therewith; a first pair of spokes carried by said first rotor, said first pair of spokes extending radially out from said first rotor and axially to said first and said second ends of said housing; a second pair of spokes carried by said second rotor, said second pair of spokes extending radially out from said second rotor and axially to said first and said second ends of said housing, each spoke of said second pair of spokes interleaving said first pair of spokes; means formed in said housing for receiving a combustible fuel; means formed in said housing for venting combusted fuel; means carried by said housing for igniting said fuel; an output shaft, said output shaft having a second axis of rotation; a double gimbal coupling said first and said second shafts to said output shaft; and means connected to said housing for moving said first axis at an angle with respect to said second axis. |
| 16. | The engine as recited in claim 15, wherein said double gimbal further comprises: a first inner fork attached to said first shaft; a first outer fork attached to said second shaft; a disk pivotally attached to said first inner fork; a ring pivotally attached to said first outer fork; and a second fork pivotally attached to said disk and said ring, said second fork attached to said output shaft. |
| 17. | The engine as recited in claim 15, further comprising sensor means connected to said receiving means for governing movement of said moving means. |
| 18. | The engine as recited in claim 15, wherein said igniting means is a spark plug. |
| 19. | The engine as recited in claim 15, wherein said igniting means further comprises: a combustion chamber formed in said housing; and a fuel injector positioned in said combustion chamber. |
| 20. | A pump, comprising: a housing having a first end and an opposing second end, said second end having a hole formed therein; a first shaft within said housing and extending through said hole in said second end; a first rotor in said housing and attached to said first shaft so that said first rotor is rotatable with said first shaft; a hollow second shaft in said housing and with said first shaft inside said hollow second shaft, said first and said second shafts rotating about a first axis, said second shaft rotatable freely with respect to said first shaft, said second shaft extending through said hole in said second end of said housing; a second rotor inside said housing and adjacent to said first rotor, said second rotor being attached to said second shaft and rotatable therewith; a first pair of spokes carried by said first rotor, said first pair of spokes extending radially out from said first rotor and axially to said first and said second ends of said housing; a second pair of spokes carried by said second rotor, said second pair of spokes extending radially out from said second rotor and axially to said first and said second ends of said housing, each spoke of said second pair of spokes interleaving said first pair of spokes; means formed in said housing for receiving a fluid; means formed in said housing for venting said fluid; an output shaft, said output shaft having a second axis of rotation; a double gimbal coupling said first and said second shafts to said output shaft; and means connected to said housing for moving said first axis at an angle with respect to said second axis. |