"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7331315 | Two-stroke engine with fuel injection A two-stroke internal combustion engine is provided with a fuel injector. The two-stroke internal combustion engine may have at least one transfer passage, an air channel, and a fuel injector. The transfer passage is between a crankcase and a combustion chamber of t... | 02/19/2008 |
| 6817323 | Internal combustion engine The present invention discloses a crankcase scavenging internal combustion engine (1) having a transfer passage (8) interconnecting the crankcase (3) and the cylinder (2) via a conventional transfer port (20). An air supply tube ( | 11/16/2004 |
| 6145488 | Reduced volume scavenging system for two cycle engines A reduced volume scavenging system for a two cycle engine embodying a duplex cylinder having an upper cylinder bore and a reduced-diameter lower cylinder bore. The lower bore communicates with a crankcase that houses a crankshaft, connecting rod(s) and en... | 11/14/2000 |
| 5797359 | Stepped piston two-cycle internal combustion engine The engine has at least first and second stepped cylinders with the pistons therein operated from the same crankshaft at different portions of the engine cycle. The pistons in the cylinders to define a combustion space and first and second air compression... | 08/25/1998 |
| 4630591 | Stratified charge internal combustion engines A stratified-charge two-stroke internal combustion engine of the kind in which a rich mixture of fuel and air reaches each cylinder from an auxiliary transfer passage, and further air from a main transfer passage. The fuel-supply device for each cylinder ... | 12/23/1986 |
| 4522163 | Stepped piston and stepped piston engine A stepped piston for an engine of the kind having one or more cylinders, the or each cylinder containing a stepped piston having a pumping part of larger diameter, and a working part of smaller diameter, the working part of the piston being slidable in, a... | 06/11/1985 |
| 4481909 | Two-cycle internal combustion engine A crankchamber precompression type two-cycle internal combustion engine including at least one cylinder assembly, each cylinder assembly including a stepped cylinder constituted by a minor diameter cylinder portion and a major diameter cylinder portion, a... | 11/13/1984 |
| 4138971 | Crankchamber precompression type two-cycle internal combustion engines Twin cylinder two cycle engine including a pair of stepped cylinders and a pair of stepped pistons slidable in said cylinders defining annular spaces of variable volume in said cylinders. The pistons are interconnected each other with 180° phase differen... | 02/13/1979 |
| 4068629 | Stepped piston two stroke engines A stepped piston two cycle engine, of the type including at least one set of two cylinders each such cylinder having a working part of smaller diameter and a pumping part of larger diameter, at least the air for each charge required by the working part of... | 01/17/1978 |