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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7322321 | Engine valve assembly having holding tank with return valve and discharge valve in the valve assembly An Elevated Expansion-Ratio Internal Combustion Engine has a substantially standard repeating four-stroke sequence for each of a plurality of cylinders. The head of each cylinder has an intake valve, a combustion-gas exhaust valve, and a vapor return valve. A return... | 01/29/2008 |
| 7188607 | Internal combustion engine of compressing and auto-igniting air-fuel mixture and method of controlling such internal combustion engine The technique of the present invention produces a first fuel-air mixture containing a first fuel and the air at a specific ratio, which does not allow for auto ignition of the first fuel-air mixture by simple compression, in a combustion chamber. The technique then ... | 03/13/2007 |
| 6568916 | Axial piston pump with outer diameter inlet filling A variable delivery fixed displacement pump is provided which has a rotating drive plate with a fixed angle. The drive plate has a fill passage extending between its radial outer surface and its drive surface, which allows fluid to be supplied to a fluid ... | 05/27/2003 |
| 6546908 | Variable geometry toroidal engine A novel rotary engine has a single toroidal cylinder and a set of pistons on a rotating circular piston assembly. A rotating disk valve perpendicular to the toroid has a cutout position which periodically traverses the chamber to allow passage of a piston... | 04/15/2003 |
| 5832892 | Spark ignition internal combustion engine A spark ignition internal combustion engine with improved anti-knocking function. The engine comprises: a cylinder; a cylinder head attached to an end of the cylinder; a piston slidably mounted in the cylinder, a center line of a piston pin of the piston ... | 11/10/1998 |
| 5239959 | Isolated combustion and diluted expansion (ICADE) piston engine The "Isolated Combustion and Dilution Expansion (ICADE) Engine", is a piston/cylinder arrangement used primarily for the compression of air and the expansion of diluted hot combustion products. Fuel injection and rapid combustion take place inside a separ... | 08/31/1993 |
| 5195486 | Two stroke diesel engine A two stroke diesel engine having a cavity in the cylinder head facing the combustion chamber, an intake valve and exhaust valve, a fuel injector, and a projection formed on the piston head. The intake valves and fuel injector are pointing toward the cavi... | 03/23/1993 |
| 5117789 | Internal combustion engine An internal combustion engine has first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14) and the second cylinder being formed in the crown of the first cylinder. First and second pistons (16... | 06/02/1992 |
| 5115768 | Combustion engine for hydrogen In order to improve a combustion engine for hydrogen comprising a main piston which is displaceable in a main cylinder in a stroke direction between a top dead center, forming a minimum main cylinder chamber with the main cylinder, and a bottom dead cente... | 05/26/1992 |
| 5095872 | Alcohol engine with combustion cavity An alcohol engine with combustion cavity of this invention includes combustion cavity blocks for constituting combustion cavities of a heat-insulating structure, disposed in a cylinder head, communication ports of a heat-insulating structure for communica... | 03/17/1992 |
| 5076229 | Internal combustion engines and method of operting an internal combustion engine using staged combustion An internal combustion engine and method of operation is disclosed as having a combustion chamber design which allows for staged combustion within the chambers. The internal combustion engine of the invention is designed as a split chamber, staged combust... | 12/31/1991 |
| 5070835 | Internal combustion engine with two-stage combustion chamber An improvement in an internal combustion engine of type in which a piston reciprocates in a cylinder to compress a charge of fuel within a combustion chamber within which the charge of fuel is ignited to burn and drive the piston through a power stroke, t... | 12/10/1991 |
| 4962736 | Diesel engine A combustion chamber and method of operating a diesel engine to insure maximum air utilization. The engine has a main chamber and a subchamber that communicates with the main chamber through a communication passageway. Fuel injection into the subchamber i... | 10/16/1990 |
| 4788942 | Internal combustion engine using dynamic resonating air chamber An internal combustion engine includes a moving piston within a combustion chamber that is temporarily divided into two zones when the piston is at and near its minumum volume position. Fuel is confined to a first zone where the fuel is ignited to generat... | 12/06/1988 |
| 4572119 | Ignition timing sensor for diesel engine An ignition timing sensor comprises an optical conductor which transmits a combustion light generated at the combustion of fuel in a Diesel engine. The optical conductor has a conically-shaped input end adjacent the inside of a combustion chamber of the D... | 02/25/1986 |
| 4485779 | Internal combustion piston engine including a cylinder having a main combustion chamber and at least one secondary combustion chamber An internal combustion piston engine comprises a cylinder with a cylinder bore therein; a cylinder head mounted on said cylinder; a piston reciprocably movable in said cylinder bore, and a main combustion chamber formed between the cylinder head and the p... | 12/04/1984 |
| 4483289 | Synthesis procedure and combustion chamber with variable turbulence The combustion structure of an internal combustion engine comprises a cavity formed in the end wall of the piston and a projection on said piston adjacent its cavity to that the projection in the injection, ignition and combustion phase of the cycle only ... | 11/20/1984 |
| 4258680 | Reciprocating engine with cylindrical combustion chamber A reciprocating internal combustion engine has a cylindrical combustion chamber lying substantially entirely within the cylinder head and including a fuel injection nozzle and possibly a glow plug. The top of the cylindrical combustion chamber is defined ... | 03/31/1981 |
| 4236490 | Internal combustion engine A two-stroke cycle engine is provided with valveless exhaust and inlet ports in a cylinder wall. A piston is mounted for reciprocal movement in the cylinder. A precombustion chamber is formed in the piston, which communicates with the combustion chamber a... | 12/02/1980 |
| 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 |
| 4096835 | Internal combustion engine method and apparatus A piston cylinder assembly is disclosed which may be used in new internal combustion engines of various types and which may be used to retrofit existing types of internal combustion engines so as to provide a high thermodynamic cycle efficiency and to sub... | 06/27/1978 |
| 4091775 | Two-stroke internal combustion engine The intake ports of the combustion chambers of two alternately-operating cylinders of a two-stroke internal combustion engine are connected by a conduit which sets up temporary communication between the two cylinders. In operation, while the piston of one... | 05/30/1978 |
| 4026250 | Explosion internal-combustion engines Improvements in or relating to explosion internal-combustion engines are disclosed, wherein a barrier is formed and divides the variable volume of the combustion chamber into two spaces or compartments communicating with each other for at least a fraction... | 05/31/1977 |
| 4005687 | Concealed regenerative combustion engine This invention relates to a combustion engine which is cooled internally. Combustion occurs in primary combustion chambers and the gas combustion products are released into secondary chambers after combustion to mix with cooler fluids. These fluids cool t... | 02/01/1977 |
| 3976038 | Reciprocating stratified charge internal combustion engine and mixture formation process In a two or four cycle reciprocating internal combustion engine, an intake section is defined in the combustion chamber wherein a stratified charge of a rich fuel-air mixture is established in close proximity to the intake valve and the spark plug. An exh... | 08/24/1976 |
