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| Number | Title | Issue Date |
| 7401588 | Cylinder block with unlined piston bores A cylinder block for an axial piston pump or motor is formed from a steel material. The block includes a plurality of bores that each have an internal bore surface of a predefined final material surface finish. The bores are subjected to various machining and heat t... | 07/22/2008 |
| 7219633 | Compression ignition rotating cylinder engine A compression ignition rotating cylinder engine (CIRC), provides a design that has several distinct advantages over conventional internal combustion engines. Rotating cylinder blocks and a fixed header plate provide a more fuel-efficient engine with constant positiv... | 05/22/2007 |
| 7124716 | Internal combustion engine using opposed pistons An internal combustion engine having a cylindrical outer housing with inner cylindrical cylinders defining power cylinders circumferentially spaced in the engine. Each of the cylinder(s) has opposed intake and exhaust pistons. The intake and exhaust pistons use air ... | 10/24/2006 |
| 7033525 | High conductivity polyaniline compositions and uses therefor The present invention describes compositions formed from polyanaline and carbon nanotubes, which exhibit enhanced conductivity and which provide uses in electronic circuit applications. ... | 04/25/2006 |
| 7025022 | Exhaust valve and intake system A method for controlling a fluid quantity in an internal combustion engine is provided for an internal combustion engine having an engine shaft and an operation cycle that includes at least one intake phase, one proportioning phase, one combustion phase in a combust... | 04/11/2006 |
| 6325027 | Bearing arrangement The bearing arrangement includes an annular flange provided with a groove, a holder disposed on a fixed axis opposite the groove and a hollow shell-shaped sphere mounted between the holder and the groove in the annular flange. The sphere is elastically de... | 12/04/2001 |
| 6305334 | Internal combustion engine A balanced five cycle internal combustion engine having first and second inlet and outlet annular cams configured to move first and second inlet and outlet pistons respectively within associated cylinders through successive five cycle repeating movements ... | 10/23/2001 |
| 5743220 | Internal combustion engine with central chamber The present invention relates to a central combustion chamber engine consisting of an assembly formed by pistons that move from ends opposed to a combustion chamber, in which said chamber has intake and exhaust control means for the combustion gases (valv... | 04/28/1998 |
| 5551383 | Internal combustion engine utilizing pistons An internal combustion engine having a cylindrical outer case(s) defining a base compression cylinder(s) with an inner cylindrical cylinder(s) defining power cylinder(s) circumferentially spaced in the engine and each housing opposing intake and exhaust p... | 09/03/1996 |
| 5507253 | Adiabatic, two-stroke cycle engine having piston-phasing and compression ratio control system An engine structure and mechanism that operates on various combustion processes in a two-stroke-cycle without supplemental cooling or lubrication comprises an axial assembly of cylindrical modules and twin, double-harmonic cams that operate with opposed p... | 04/16/1996 |
| 5375567 | Adiabatic, two-stroke cycle engine An engine structure and mechanism that operates on various combustion processes in a two-stroke-cycle without supplemental cooling or lubrication comprises an axial assembly of cylindrical modules and twin, double-harmonic cams that operate with opposed p... | 12/27/1994 |
| 5031581 | Crankless reciprocating machine The machine (e.g. an internal combustion engine or pump) has at least one cylinder 4 housing two opposed pistons 5 adapted to reciprocate in opposite directions and a common working chamber 13. A main shaft 1 carries two contoured tracks 3 each having opp... | 07/16/1991 |
| 4996953 | Two plus two stroke opposed piston heat engine Combustion engines have opposed pistons in one or more cylinders, with the piston motion determined by cams. Ports, for intake and exhaust, are at one end of the cylinder, opened or closed by one piston, with the combustion chamber at the other end, and t... | 03/05/1991 |
| 4974556 | Internal combustion engine An internal combustion engine includes a pair of opposed piston assemblies that reciprocate within a single combustion chamber in an engine block. Each piston assembly includes an annular piston head that is received concentrically around a driveshaft whi... | 12/04/1990 |
| 4974555 | Piston motor with parallel cylinders arranged around the driving shaft The invention is embodied in a multi-cylinder internal combustion engine. The cylinders (4) of the engine are arranged parallel about the output shaft (2). Each cylinder (4) has a piston (5) and each piston has a driving rod (6). The driving rods move par... | 12/04/1990 |
| 4915064 | Internal combustion engine with opposed pistons A combustion engine comprises a plurality of cylinders. Each cylinder contains aligned pistons displaceable toward and away from one another. Rotary cam disks are connected to a drive shaft and are arranged to be contacted by respective ones of the piston... | 04/10/1990 |
| 4610223 | Cam engine An improved internal combustion cam engine of a type in which the drive-cam-valve shaft rotates about an axis parallel to the axes of the cylinders.... | 09/09/1986 |
| 4418656 | Rotary motion transformer A rotory motion transformer (10) is disclosed which has a cylindrical housing (12) and a rotatable shaft (36). A cam (14) having ascending and descending segments (22-28) forming lobes (30, 32) is included in the housing and axially aligned with the shaft... | 12/06/1983 |
