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| Number | Title | Issue Date |
| 4112881 | Rotary internal combustion engine employing compression ignition A rotary internal combustion engine comprising an engine frame having a rotor rotatably mounted therein which has a plurality of radially spaced cylinders mounted thereon. The free floating piston is slidably mounted in each of the cylinders with the head... | 09/12/1978 |
| 4040399 | Back draft carburetor for two cycle engines Vacuum, created by venturi effect of the throttle valve within the throat of a carburetor of a two cycle outboard motor, in company with a vacuum source orifice positioned opposite a peripheral edge of the throttle valve, is partially applied, by strategi... | 08/09/1977 |
| 4034724 | Stratified charging of internal combustion engines Method and apparatus for providing a stratified charge of air and a fuel-rich, fuel-air mixture to each combustion chamber of an internal combustion engine having more than one combustion section by providing alternate sources of intake air at the intake ... | 07/12/1977 |
| 4026254 | Two stroke internal combustion engine and method of operation thereof Disclosed herein is an internal combustion engine (and a method of operation thereof) comprising a piston movable relative to a combustion chamber and to a crankcase to effect cyclical pressure variation in the crankcase in response to piston movement, a ... | 05/31/1977 |
| 4016839 | Method for fueling combustion engines The invention relates to internal combustion engines of the reciprocal type, and more particularly to such engines in which the pressure for Diesel operation can be attained, or in which the power output of an Otto-cycle engine can be increased. The prese... | 04/12/1977 |
| 3945354 | Exhaust port of two cycle engine The exhaust port of a spark ignition two cycle engine has the general shape of an inverted T with a base portion and a narrower upwardly extending stem portion. The top of the base portion is approximately at the level of the top of the transfer port whic... | 03/23/1976 |
| 3938481 | Two-stroke internal combustion engine The invention relates to internal combustion engines of the reciprocal type, and more particularly to such engines in which the pressure for Diesel operation can be attained, or in which the power output of an Otto-cycle engine can be increased. The prese... | 02/17/1976 |
