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| Number | Title | Issue Date |
| 7255071 | Supercharged two-stroke engine with upper piston extensions An apparatus useful in a two-stroke cycle engine or in a pump as a piston disposed within a piston cylinder. The piston cylinder has an intermediate piston cylinder head disposed transversely across the interior of the piston cylinder. The piston has at least one up... | 08/14/2007 |
| 7210430 | Rapid response power conversion device An apparatus and method for extracting energy from an internal combustion engine. The internal combustion engine includes a chamber having a primary piston and a secondary piston with a combustion portion of the chamber situated adjacently between the primary piston... | 05/01/2007 |
| 7194989 | Energy efficient clean burning two-stroke internal combustion engine A precision cast engine has a piston unit and a rotor unit to translate linear thrust from the piston unit into rotary power. Each piston rod is attached to a thrust absorber carriage running on precision bearings to eliminate piston drag on the cylinder walls. One ... | 03/27/2007 |
| 6966283 | Apparatus with piston having upper piston extensions An apparatus useful in a two-stroke cycle engine or in a pump as a piston disposed within a piston cylinder. The piston cylinder has an intermediate piston cylinder head disposed transversely across the interior of the piston cylinder. The piston has a lower portion... | 11/22/2005 |
| 6748909 | Internal combustion engine driving a compressor A two-stroke or four-stroke internal combustion engine operates by admitting a carburated mixture or by admitting fresh air with the direct or indirect injection of fuel. The engine has at least one cylinder, which defines a variable-volume combustion chamber in whi... | 06/15/2004 |
| 6352057 | Super charged two-stroke or four-stroke internal combustion engine Two-stroke or four-stroke internal combustion engine (M1), operating by admitting a carburated mixture or by admitting fresh air with the direct or indirect injection of fuel, the engine having at least one cylinder (1) defining a variable-volume combusti... | 03/05/2002 |
| 5509382 | Tandem-differential-piston cursive-constant-volume internal-combustion engine An internal-combustion engine having a main cylinder, a crosshead motor piston mounted on a piston rod, and a charger piston, which reciprocates below the motor piston and has a hole for the piston rod to slide through, is shown in full section in FIG. 1.... | 04/23/1996 |
| 5060602 | Device for controlling or monitoring the start of introduction under pressure, of a fuel-air mixture following scavenging of an engine cylinder by air A device (4, 5) for introducing, under pressure, a fuel-air mixture into a first cylinder of an internal combustion engine, with the engine comprising at least one other cylinder having a pump crankcase. A connecting passageway (9) is provided between the... | 10/29/1991 |
| 4612880 | Method for control of octane requirement increase in an internal combustion engine having manifold and/or combustion surfaces which inhibit the formation of engine deposits The control of the octane requirement increase phenomenon in an internal combustion engine is achieved by introducing into an internal combustion engine, having manifold and/or combustion surfaces which inhibit the formation of engine deposits, along with... | 09/23/1986 |
| 4407240 | Opposed piston internal combustion engine with special scavenging means A reciprocating piston machine comprising a main piston secured to a piston rod, a cylinder in which the main piston can slide, the main piston and cylinder defining a combustion chamber, a scavenging plate disposed in the combustion chamber and axially m... | 10/04/1983 |
| 4210108 | Stepped piston two-stroke engines A two-stroke internal combustion engine having a stepped piston in which the cylinder casting has a bore of greater diameter to form a pumping part, a bore of lesser diameter to form a working part, exhaust port means in the working part and opposed trans... | 07/01/1980 |
| 4206727 | Two-stroke-cycle engine having an auxiliary piston and valve arrangement, and its associated drive mechanism The invention provides a two-stroke-cycle engine which has a main piston, and an auxiliary piston and transfer valve arrangement. and its associated drive mechanism. The engine has also at least two intake valves arranged in the cylinder head. The auxilia... | 06/10/1980 |
| 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 |
| 3996903 | Internal combustion engine In a two-stroke cycle internal combustion engine a noncompression type pump formed by placing a plate-like secondary piston within a primary piston, between the top and the wrist pin. The reciprocating movements of primary and secondary piston in conjunct... | 12/14/1976 |
| 3977369 | Orbital displacers An everted orbital displacer is formed by locating the working cavities within the orbiting piston. If the piston is double sided, a normal orbital displacer may have its working cavities located on the outer periphery of the piston, and the combination o... | 08/31/1976 |
