WO1995023279B1 - Internal combustion engine rotary valve assembly having variable intake valve timing - Google Patents
Internal combustion engine rotary valve assembly having variable intake valve timingInfo
- Publication number
- WO1995023279B1 WO1995023279B1 PCT/US1995/002256 US9502256W WO9523279B1 WO 1995023279 B1 WO1995023279 B1 WO 1995023279B1 US 9502256 W US9502256 W US 9502256W WO 9523279 B1 WO9523279 B1 WO 9523279B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- air
- chamber
- fuel
- engine
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract 14
- 239000000446 fuel Substances 0.000 claims abstract 33
- 239000000203 mixture Substances 0.000 claims 11
- 210000000088 Lip Anatomy 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 2
- 230000001808 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
Abstract
An internal combustion engine (10) has rotary valves (27) associated with movable shutters (142, 154) operable to vary the closing of intake air/fuel port sections (34, 35) to obtain peak volumetric efficiency over the entire range of speed of the engine. The shutters (142, 154) are moved automatically by a control mechanism (169) that is responsive to the RPM of the engine. A foot-operated lever (173) associated with the control mechanism (169) is also used to move the shutters (142, 154) between their open and closed positions.
Claims
AMENDED CLAIMS
(received by the International Bureau on 27 September 1995 (27.09.95); original claims 1 and 3 amended; new claims 37-43 added; remaining claims unchanged (5 pages)]
1. An internal combustion engine comprising: a block having cylindrical wall means surrounding at least one piston chamber, piston means located in said piston chamber, means operable to reciprocate the piston means in said chamber, a head plate located on the block over the piston chamber, said head plate having an opening in communication with said chamber, head means mounted on the head plate, means securing the head means and head plate to the block, said head means having an upright bore, air/fuel intake and exhaust gas passages open to said bore, a cylindrical sleeve located within said bore, said sleeve having an inside cylindrical surface surrounding a valve chamber, a first air/fuel intake port section open to the intake passage and a second air/fuel intake port section open to the intake passage, and an exhaust gas port circumferentially spaced from the intake ports open to the exhaust gas passage, rotary valve means located in said valve chamber having a valve combustion chamber continuously open to the opening in the head plate and sequentially open to the first and second air/fuel intake port sections and exhaust gas port for controlling the flow of air/fuel mixture into the valve combustion chamber and the flow of exhaust gas from the valve combustion chamber and piston chamber, said sleeve having an outer surface with a circumferential groove extended over the air/fuel intake port sections, shutter means located in said groove providing separate openings between the air/fuel intake passage and the first and second air/fuel intake port sections, means for moving the shutter means relative to the sleeve and vary the size of the openings to vary the timing of the closing of the air/fuel intake port sections, first seal means mounted on the head plate engageable with the valve means to block flow of gas into the valve combustion chamber between the valve means and the sleeve, second seal means mounted on the valve means to block flow
AMENDEDSHEET(AflTICLE19)
of gas into the valve combustion chamber between the valve means and the sleeve, and means operable to rotate the valve means in timed relation with the movement of the piston means whereby the engine has intake, compression, power and exhaust strokes.
2. The engine of Claim 1 wherein: said head has an idle and part load passage for the air/fuel mixture between the intake gas passage and the first intake port section, gate means located in said idle and part load passage for controlling the flow of air/fuel mixture to said first intake port section, and means for operating the gate means in timed relation with the rotation of the valve means whereby the gate means is closed during the flow of exhaust gas from the valve combustion chamber and open to allow flow of the air/fuel mixture into the valve combustion chamber.
3. The engine of Claim 2 wherein: the gate means is a valve located in said idle and part load passage, said means for operating the gate means comprise drive means connecting the rotary valve means with the valve whereby the valve is operated in timed relation with the rotary valve means.
4. The engine of Claim 1 wherein: said shutter means comprises a first shutter operable to selectively vary the size of the opening to the first air/fuel port section and timing of the closing thereof, and a second shutter operable to selectively vary the size of the opening to the second air/fuel port section and timing of the closing thereof, and said means for moving the shutter means including a first control means for selectively moving the first shutter and a second control means for moving the second shutter and means for operating the first and second control means.
5. The engine of Claim 4 wherein: the first shutter has a lip projected into the first intake port section, and the second shutter has a lip projected into
second seal means, means connecting the band to said body whereby said band rotates with said body, and an arcuate seal member located between the opposite ends of the band, said arcuate seal member having land means located in sliding sealing engagement with the inside cylindrical surface of the sleeve.
37. The engine of Claim 31 wherein: said head includes an idle and part load passage for the air/fuel mixture between the air/fuel intake passage and the air/fuel intake port, gate means located in said idle and part load passage for controlling the flow of air/fuel mixture to said intake port, and means for operating the gate means in timed relation with the rotation of the valve means whereby the gate means is closed during the flow of exhaust gas from the valve chamber and open to allow flow of the air/fuel mixture into the valve chamber.
38. The engine of Claim 37 wherein: the gate means is a valve located in said idle and part load passage, said means for operating the gate means comprise drive means connecting the rotary valve means with the valve whereby the valve is operated in timed relation with the rotary valve means.
39. An internal combustion engine comprising: a block having cylindrical wall means surrounding at least one piston chamber, piston means located in said piston chamber, means operable to reciprocate the piston means in said chamber, head means connected to the block, said head means having a bore open to the piston chamber, air/fuel intake and exhaust gas passages open to said bore, a cylindrical sleeve located within said bore, said sleeve having an inside cylindrical surface surrounding a valve chamber, an air/fuel intake port open to the intake passage, and an exhaust gas port circumferentially spaced from the intake port open to the exhaust gas passage, rotary valve means located in said valve chamber having a valve combustion chamber continuously open to the opening
in the piston chamber and sequentially open to the air/fuel intake port and exhaust gas port for controlling the flow of air/fuel mixture into the valve combustion chamber and the flow of exhaust gas from the valve combustion chamber and piston chamber, shutter means located adjacent said sleeve providing an opening between the air/fuel intake passage and the air/fuel intake port, means for moving the shutter means relative to the sleeve to vary the size of the opening and vary the timing of the closing of the air/fuel intake port, and means operable to rotate the valve means in timed relation with the movement of the piston means whereby the engine has intake, compression, power and exhaust strokes.
40. The engine of Claim 39 wherein: the means for moving the shutter means includes an elongated actuator rod, cooperating means coupling the rod to the shutter means whereby movement of the rod moves the shutter means to vary the size of the opening and vary the timing of the closing of the air/fuel intake port, and control means for moving the rod thereby changing the speed of the engine.
41. The engine of Claim 39 wherein: said valve means has a valve body having an outside cylindrical surface spaced inwardly from the inside cylindrical surface of the sleeve, an arcuate band located in the space between the valve body and sleeve, said band having opposite ends on opposite sides of the second seal means, means connecting the band to said body whereby said band rotates with said body, and an arcuate seal member located between the opposite ends of the band, said arcuate seal member having land means located in sliding sealing engagement with the inside cylindrical surface of the sleeve.
42. The engine of Claim 39 wherein: said head includes an idle and part load passage for the air/fuel mixture between the air/fuel intake passage and the air/fuel intake port, gate means located in said idle and part load passage for controlling the flow of air/fuel
mixture to said intake port, and means for operating the gate means in timed relation with the rotation of the valve means whereby the gate means is closed during the flow of exhaust gas from the valve chamber and open to allow flow of the air/fuel mixture into the valve chamber.
43. The engine of Claim 42 wherein: the gate means is a valve located in said idle and part load passage, said means for operating the gate means comprise drive means connecting the rotary valve means with the valve whereby the valve is operated in timed relation with the rotary valve means.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU19687/95A AU1968795A (en) | 1994-02-25 | 1995-02-23 | Internal combustion engine rotary valve assembly having variable intake valve timing |
| DE69529402T DE69529402T2 (en) | 1994-02-25 | 1995-02-23 | ROTARY VALVE ARRANGEMENT FOR INTERNAL COMBUSTION ENGINE WITH VARIABLE INLET VALVE CONTROL |
| EP95912590A EP0745179B1 (en) | 1994-02-25 | 1995-02-23 | Internal combustion engine rotary valve assembly having variable intake valve timing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/201,794 US5474036A (en) | 1994-02-25 | 1994-02-25 | Internal combustion engine with rotary valve assembly having variable intake valve timing |
| US08/201,794 | 1994-02-25 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1995023279A2 WO1995023279A2 (en) | 1995-08-31 |
| WO1995023279A3 WO1995023279A3 (en) | 1995-09-21 |
| WO1995023279B1 true WO1995023279B1 (en) | 1995-10-19 |
Family
ID=22747326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1995/002256 WO1995023279A2 (en) | 1994-02-25 | 1995-02-23 | Internal combustion engine rotary valve assembly having variable intake valve timing |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5474036A (en) |
| EP (1) | EP0745179B1 (en) |
| AU (1) | AU1968795A (en) |
| DE (1) | DE69529402T2 (en) |
| WO (1) | WO1995023279A2 (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816203A (en) * | 1995-02-13 | 1998-10-06 | Muth; Barry A. | Rotary valve internal combustion engine |
| US5724926A (en) * | 1995-12-22 | 1998-03-10 | Eagle Heads, Ltd. | Rotary valve assembly for an internal combustion engine |
| US5967108A (en) | 1996-09-11 | 1999-10-19 | Kutlucinar; Iskender | Rotary valve system |
| US5931134A (en) * | 1997-05-05 | 1999-08-03 | Devik International, Inc. | Internal combustion engine with improved combustion |
| US6186769B1 (en) * | 1999-04-06 | 2001-02-13 | Woodshed Technologies | Resin and fiber compounding apparatus for molding operations |
| US6349679B1 (en) * | 1999-06-16 | 2002-02-26 | Nihon Software Approach Co., Ltd. | Circularly-curved piston engine |
| US6604929B2 (en) * | 2000-01-27 | 2003-08-12 | Woodshed Technologies, Inc. | Fiber cutting mechanism |
| US6513475B2 (en) | 2001-04-18 | 2003-02-04 | Barry Muth | Rotary valve internal combustion engine |
| AT501274B8 (en) * | 2002-09-23 | 2007-02-15 | Freiherr Weber Engineering Oeg | COMBUSTION ENGINE |
| EP1511926A1 (en) * | 2002-05-28 | 2005-03-09 | RCV Engines Limited | Rotary valve seal |
| CN100350135C (en) * | 2002-06-02 | 2007-11-21 | 彭曙东 | Variable gas distribution mechanism and rotary combustion chamber and air valve device |
| AU2003241059A1 (en) * | 2003-05-30 | 2003-09-22 | Robert Heinrich | Rotating roller as a valve in the head of internal combustion engine |
| US7111603B1 (en) * | 2004-01-12 | 2006-09-26 | Kenneth Michael Davis | Heli-shaft |
| CN101365868B (en) | 2005-03-09 | 2015-03-04 | 扎杰克优质发动机股份有限公司 | Internal combustion engine and method with improved combustion |
| US20070137625A1 (en) * | 2005-12-20 | 2007-06-21 | Daniel Steven A | Controlling size of work machine cooling system |
| WO2007080619A2 (en) * | 2006-01-09 | 2007-07-19 | Vito Consoloni | Rotary valve internal combustion engine with seal and valve register arrangement |
| US8086386B2 (en) * | 2007-05-29 | 2011-12-27 | Ab Engine Incorporated | High efficiency internal combustion engine |
| US7841308B1 (en) * | 2008-04-07 | 2010-11-30 | Muth Barry A | Rotary valve in an internal combustion engine |
| US8714119B2 (en) * | 2008-06-05 | 2014-05-06 | Stuart B. Pett, Jr. | Parallel cycle internal combustion engine with double headed, double sided piston arrangement |
| US8499727B1 (en) | 2008-06-05 | 2013-08-06 | Stuart B. Pett, Jr. | Parallel cycle internal combustion engine |
| GB2467947B (en) * | 2009-02-20 | 2013-10-09 | Rcv Engines Ltd | An internal combustion engine |
| US8225767B2 (en) | 2010-03-15 | 2012-07-24 | Tinney Joseph F | Positive displacement rotary system |
| GB2495314A (en) * | 2011-10-06 | 2013-04-10 | Rcv Engines Ltd | A rotary valve internal combustion engine |
| GB2504773A (en) | 2012-08-10 | 2014-02-12 | Rcv Engines Ltd | A rotary valve internal combustion engine |
| WO2020049032A1 (en) * | 2018-09-06 | 2020-03-12 | Rcv Engines Limited | A rotary valve internal combustion engine |
| GB2576907A (en) * | 2018-09-06 | 2020-03-11 | Rcv Engines Ltd | A rotary valve internal combustion engine |
| CA3119273A1 (en) | 2018-11-09 | 2020-05-14 | Iocurrents, Inc. | Machine learning-based prediction, planning, and optimization of trip time, trip cost, and/or pollutant emission during navigation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1632517A (en) * | 1923-09-12 | 1927-06-14 | Burnham C Stickney | Internal-combustion engine |
| US1711781A (en) * | 1926-03-30 | 1929-05-07 | Hugo C Gibson | Rotary valve mechanism for internal-combustion engines |
| US1839458A (en) * | 1927-04-30 | 1932-01-05 | Anglada Motor Corp | Rotary sleeve valve internal combustion engine |
| US1859199A (en) * | 1929-06-10 | 1932-05-17 | Davison Engineering Corp | Internal combustion engine |
| US2017198A (en) * | 1931-10-17 | 1935-10-15 | Anglada Motor Corp | Cuff valve engine |
| US2245743A (en) * | 1935-07-23 | 1941-06-17 | Aspin Frank Metcalf | Rotary valve |
| US3948227A (en) * | 1974-03-08 | 1976-04-06 | Guenther William D | Stratified charge engine |
| US4036184A (en) * | 1974-03-08 | 1977-07-19 | Dana Corporation | Stratified charge engine |
| US3993036A (en) * | 1974-08-27 | 1976-11-23 | Tischler Wald E | Internal combustion engine |
| SE450590B (en) * | 1982-01-29 | 1987-07-06 | Lars Hedelin | FORBRENNINGSMOTOR |
| US4494500A (en) * | 1982-06-01 | 1985-01-22 | Hansen Engine Corporation | Rotary valve assembly |
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| US5081966A (en) * | 1984-11-15 | 1992-01-21 | Hansen Engine Corporation | Internal combustion engine with rotary valve assembly |
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| US5000136A (en) * | 1984-11-15 | 1991-03-19 | Hansen Craig N | Internal combustion engine with rotary valve assembly |
| US4774913A (en) * | 1987-10-05 | 1988-10-04 | General Motors Corporation | Variable valve lift/timing mechanism |
| US4867117A (en) * | 1987-12-22 | 1989-09-19 | Scalise Michael A | Rotary valve with integrated combustion chamber |
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| GB9013788D0 (en) * | 1990-06-20 | 1990-08-08 | Lotus Group Plc | Internal combustion engine and an improved rotary inlet valve for use therewith |
| US5209194A (en) * | 1991-04-26 | 1993-05-11 | Nippondenso Co., Ltd. | Variable valve timing apparatus |
-
1994
- 1994-02-25 US US08/201,794 patent/US5474036A/en not_active Expired - Lifetime
-
1995
- 1995-02-23 DE DE69529402T patent/DE69529402T2/en not_active Expired - Fee Related
- 1995-02-23 AU AU19687/95A patent/AU1968795A/en not_active Abandoned
- 1995-02-23 WO PCT/US1995/002256 patent/WO1995023279A2/en active IP Right Grant
- 1995-02-23 EP EP95912590A patent/EP0745179B1/en not_active Expired - Lifetime
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