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| Number | Title | Issue Date |
| 5727517 | Equivalence-boosted sliding vane internal combustion engine A sliding vane internal combustion engine that provides one or more expansion gas ducts directing pressurized gases from expansion volumes of the vane engine into an intake charge so as to increase the intake charge density. One or more intercoolers may b... | 03/17/1998 |
| 4086882 | Compound combustion engines and methods of compounding same This invention relates to improving the internal combustion and internal use of fuel in engines, and more particularly to engines which are compounded in order to effect extension of the expansion event of the four-event work cycle of such engines which a... | 05/02/1978 |
| 4084549 | Rotary piston engine exhaust gas recycling means Exhaust gas recycling means by which exhaust gas is recycled and introduced, via a port which is formed in the peripheral wall of a rotary piston engine and which port may also serve for introduction of air or an air-fuel mixture required for low-speed op... | 04/18/1978 |
| 4073268 | Rotary combustion engine with side housing by-pass passages A rotary combustion engine having grooves in the engine side walls for bleeding off unburnt hydrocarbon gases from the trailing end of each working chamber during the late portion of its expansion stroke, these gases being bled through side housing groove... | 02/14/1978 |
| 4009689 | Rotary combustion engine exhaust gas recirculation system A rotary combustion engine is provided with an exhaust gas recirculation system that is responsive to both exhaust gas pressure and inlet vacuum and is operable to connect the working chambers adjacent their trailing end to the intake port through a varia... | 03/01/1977 |
| 3996898 | Rotary combustion engine apex seal arrangement A rotary combustion engine having a planetary rotor and side intake ports is provided with an apex seal arrangement comprising two side-by-side seal members providing spaced sealing lines of contact at each rotor apex and wherein communicating grooves in ... | 12/14/1976 |
| 3995599 | Rotary combustion engine exhaust gas recirculation system A rotary combustion engine having a planetary rotor and a side intake port is provided with an internal exhaust gas recirculation system that is operable to connect the trailing region of the working chambers and the space below the trailing apex seal to ... | 12/07/1976 |
