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| Number | Title | Issue Date |
| 8109244 | Crankdisk bearing alternatives for the Waissi type opposed piston internal combustion engine An improvement to the Waissi type opposed piston internal combustion engine is proposed. The engine has at least one pair of aligned and opposed cylinders with one reciprocating double-headed piston assembly in each cylinder pair. The reciprocating motion of the pis... | 02/07/2012 |
| 7334558 | Slide body internal combustion engine An internal combustion engine includes a slide body having a plurality of rigidly mounted pistons on opposite ends of the slide body. The slide body reciprocates and is connected to a flywheel by shaft and bearing which extends through an angled track in the slide b... | 02/26/2008 |
| 7219631 | High torque, low velocity, internal combustion engine An Internal Combustion Engine including a plurality of reciprocating pistons disposed about the periphery of a central housing, and a pair of drive cams responsive to the displacement of the pistons for driving one or more output drive shafts. A piston rod cross mem... | 05/22/2007 |
| 7210445 | Piston-cam engine A piston-cam engine includes a drive cylinder, a drive piston operably disposed therein having a piston head and a shaft, a support frame having a drive shaft rotatably movably connected thereto, a cam connected to the drive shaft having a peripheral surface and hav... | 05/01/2007 |
| 7137365 | Radial engine A radial engine includes an engine block (2) having a central aperture (14). A drive shaft (7) extends through the aperture and a planar cam plate (5,6) is fixedly mounted on the shaft. A pair of spaced opposed walls (25) extend fr... | 11/21/2006 |
| 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 |
| 7121252 | Dynamic journal engine An internal combustion engine that replaces the throw journal of a crankshaft with a set of contours that are dynamic rather than static. The contour is such that three cycles of engine operation are not affected, i.e., exhaust, intake, and compression. The contour ... | 10/17/2006 |
| 7100549 | Mechanism including a piston-and-cylinder assembly A mechanism comprising a piston-and-cylinder assembly including a piston housed in a cylinder is provided. The mechanism includes a pin member passing through the piston and a guide member having a guide recess accommodating an end of the pin member, the guide reces... | 09/05/2006 |
| 6213082 | Drive arrangement for a two-cycle engine The drive arrangement for the two-cycle engine employs a multi-lobe cam and piston rods which are reciprocated in a rectilinear manner. A roller is mounted on each piston rod to contact and be driven by the multi-lobe drive cam off the drive shaft of the ... | 04/10/2001 |
| 5992356 | Opposed piston combustion engine An engine comprises two counter rotating multilobate cams which are acted upon by a pair of diametrically opposed pistons which are rigidly interlinked by connecting rods. Differential gearing is provided to time the counter rotation of the cams. The foll... | 11/30/1999 |
| 5640881 | Motion converter with pinion sector/rack interface A device for translating rotary to linear motion and vice versa includes a reciprocating linearly moving shuttle with a central aperture. The aperture has a pair of opposing gear racks protruding towards the center and which capture therebetween a pair of... | 06/24/1997 |
| 5634441 | Power transfer mechanism A power transfer mechanism for transferring power between rotating components and reciprocating components includes a cam rotatable about an axis and having an odd number of lobes evenly spaced therearound, and a double acting reciprocating member which i... | 06/03/1997 |
| 5606938 | Tri-lobed cam engine In an engine having free floating reciprocating pistons each with a cam follower which bears on a tri lobed cam, the pistons are arranged in one or more banks of four pistons each of which extends over an angular interval of 90°. Where two banks of four ... | 03/04/1997 |
| 5429078 | Internal combustion engine having rotary engine body An internal combustion engine comprises a hollow rotary engine body, an axially opposite pair of main pistons capable of rotating with but slidably reciprocating relative to the engine body, a cam mechanism for causing the main pistons to make one full ro... | 07/04/1995 |
| 5417309 | Lubrication system for a conjugate drive mechanism A conjugate drive mechanism of a scotch yoke type motion converter includes a conjugate driver, which is rotatably mounted on a crankpin, and a bearing conjugate, which is mounted on a linearly movable shuttle. The conjugate drive mechanism is lubricated ... | 05/23/1995 |
| 5402755 | Internal combustion (IC) engine An internal combustion (IC) engine with at least one pair of aligned and opposed cylinders has a reciprocating double-headed piston in each cylinder pair. The axis of the double-headed piston is perpendicular to a driveshaft. The reciprocating motion of t... | 04/04/1995 |
| 5331925 | Internal combustion engine An internal combustion engine has a plurality of cylinders and two pistons located in each of the cylinders and forming two combustion chambers with the latter.... | 07/26/1994 |
| 5331926 | Dwelling scotch yoke engine An improved engine utilizing a dwelling scotch yoke and a journalled flywheel in a unique combination for stalling the translatory movement of oppositely paired pistons during the detonation of the fuel mixture to achieve a clean exhaust and a energy effi... | 07/26/1994 |
| 5273011 | Arrangement for converting linear motion from a power source to a rotary motion An arrangement for converting linear motion from a power source to rotary motion, wherein the power source is intended to coact with a cam curve so as to generate rotary motion, the rotary motion being performed by an axle; wherein the arrangement include... | 12/28/1993 |
| 5259256 | Motion converter with pinion sector/rack interface A device for translating rotary to linear motion and vice versa includes a reciprocating linearly moving shuttle with a central aperture. The aperture has a pair of opposing gear racks protruding towards the center and which capture therebetween a pair of... | 11/09/1993 |
| 5230307 | Internal combustion engine having rotary engine body An internal combustion engine comprises a hollow rotary engine body, an axially opposite pair of main pistons capable of rotating with but slidably reciprocating relative to the engine body, a cam mechanism for causing the main pistons to make one full ro... | 07/27/1993 |
| 5218933 | Internal combustion engines An internal combustion engine includes at least one piston (1) which is reciprocally received in a cylinder (2) which is coupled to a rotary output shaft (17) by a coupling (5, 22) which converts reciprocal movement of the piston into rotary movement of t... | 06/15/1993 |
| 5133305 | Internal combustion engine having rotary engine body The present invention provides an internal combustion engine comprising a hollow engine body rotatable about a fixed shaft, a pair of pistons capable of rotating with but slidably reciprocating relative to the engine body, and a cam mechanism for causing ... | 07/28/1992 |
| 5031470 | Device for converting linear reciprocating motion to rotary motion An arrangement for converting linear motion from a power source to rotary motion, where the power source is intended to coact with a cam in a manner to produce rotary motion, this rotary motion being carried out by a shaft. The invention is characterized ... | 07/16/1991 |
| 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 |
| 4941396 | Reciprocating double-ended piston The present invention relates to a reciprocating engine which has an improved reciprocating double ended piston which substantially reduces the size and weight of piston components. The double ended piston comprises a center portion between the two end po... | 07/17/1990 |
| 4848282 | Combustion engine having no connecting rods or crankshaft, of the radial cylinder type Combustion engine having no connecting rods or crankshaft, whose cylinders are disposed radially. In this engine, the axes of the cylinders are situated in a plane perpendicular to the drive shaft, the alternating movement of the pistons being transmitted... | 07/18/1989 |
| 4697552 | Modular internal combustion engine A modular internal combustion engine is disclosed, having a cross-shaped ck-case, composed of a top cover with hatch and a bottom cover, in which there are formed two mutually perpendicular longitudinal and transverse cylindrical holes. In the longitudin... | 10/06/1987 |
| 4545336 | Engine with roller and cam drive from piston to output shaft An internal combustion engine includes (a) a pair of opposed cylinders and pistons reciprocating therein, (b) power and return rollers carried by each of the pistons to reciprocate therewith during piston travel, (c) a power output shaft having an integral and exte... | 10/08/1985 |
| 4526141 | Drive arrangement for internal combustion engine An internal combustion engine including: a cylinder, a combustion chamber in the cylinder, two opposed pistons within the cylinder and relatively movable towards and away from each other. The combustion chamber is defined between the two pistons. Each pis... | 07/02/1985 |
| 4493296 | Three cycle engine with varying combustion chamber volume A piston type internal combustion engine of novel three cycle variety, in which the intake and compression functions are divorced from the combustion cylinder entirely and are carried out by a separate high pressure compressor; with a high pressure chargi... | 01/15/1985 |
| 4480599 | Free-piston engine with operatively independent cam A free-piston engine formed by one or more units, each comprising a pair of opposed pistons connected to a common piston rod and movable within two opposed cylinders, with a load, such as the inductor of a linear alternator, connected to an intermediate p... | 11/06/1984 |
| 4459945 | Cam controlled reciprocating piston device A unique reciprocating piston device that uses one or more special cams and yokes to replace the functions normally provided by crankpins and connecting rods. The cams have noncircular finite jerk lift surfaces which provide continuous positive positionin... | 07/17/1984 |
| 4408578 | Piston engine as a combustion engine or as a compressor with opposed cylinders A piston engine in which opposedly working pistons are rigidly connected to each other by a hollow carrier through which the engine shaft extends. The carrier has interior wall portions with a series of staggered projections thereon. The shaft has a stack... | 10/11/1983 |
| 4408577 | Rotary engine Disclosed are apparatus for a two cylinder rotary internal combustion engine comprising a stationary cylinder block with a pair of inwardly facing horizontally opposed pistons operating within. Each piston is maintained in fixed relationship to the other ... | 10/11/1983 |
| 4387672 | Energy transfer apparatus An apparatus having cylinders arranged radially about a rotatable shaft and a separate piston adapted to reciprocate in each cylinder. Each piston is held in contact with a cam eccentrically mounted on the shaft by means of linkages and rollers. The eccen... | 06/14/1983 |
| 3948230 | Rotary engine provided with first and secondary rotatably mounted rotors A rotary engine comprising a substantially cylindrical outer casing, a central drive shaft, a substantially triangular shaped first rotor mounted to said drive shaft substantially "clover" shaped secondary rotors one rotatably mounted to each of the three... | 04/06/1976 |
