Class 123/56.2 - Cam on rotary output shaft

Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine wherein the rotary output shaft
No. of patents: 34
Last issue date: 08/12/2008

Number	Title	Issue Date
7409932	Sliding joint for variable compression ratio device A barrel-type internal combustion engine includes a power output shaft assembly with a sliding joint. A power output shaft has a pair of spaced apart bearing surfaces and a plurality of radial splines between the bearing surfaces. A cam plate has a central hub and a...	08/12/2008
7360511	Opposed piston engine A two-cycle, opposed piston engine with side-mounted crankshafts and cylinders isolated from mechanical stresses of the engine includes tailored cooling of cylinders and symmetrical cooling of the interior surfaces of piston crowns. Each opposed piston includes a co...	04/22/2008
7270108	Opposed piston, homogeneous charge pilot ignition engine An engine of the opposed piston, two-stroke, compression ignition type includes provision for injection of a main charge of liquid fuel into the bore of a cylinder between opposed pistons early in a compression stroke to permit the fuel to evaporate and mix with air...	09/18/2007
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
7174864	Combustion engine A combustion engine comprising; a pair of opposed cylinder elements (2, 3) having a common axis, each cylinder element being provided with a piston (28) reciprocable between first and second locations in the cylinder element the first and second locati...	02/13/2007
7156056	Two-cycle, opposed-piston internal combustion engine In a two-cycle, opposed-piston internal combustion engine with optimized cooling and no engine block, the opposed pistons are coupled to a pair of crankshafts by connecting rods that are subject to substantially tensile forces acting between the pistons and the cran...	01/02/2007
7117828	Axial motors An axial motor (100) driven by opposed pistons/cylinder (101a–105b, 111a–115b) pairs arranged in a circular array about a central axis of the motor (100). The opposed pistons (101a	10/10/2006
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
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
7004121	Arrangement at a piston engine and method of controlling the pistons A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders (14b, 14c), preferably positioned with the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylin...	02/28/2006
6968751	Axial piston machines This invention relates to internal combustion engines with cylinders arranged parallel to the main shaft and where reciprocating movements of the pistons are converted to rotation by means of a Z-crank mechanism and motion converter, or conversely to systems such as...	11/29/2005
6938589	Variable displacement engine An internal combustion engine having at least one piston with an adjustable stroke length. The engine includes a connecting rod attached to the piston and a crankshaft. The crankshaft has a journal portion that extends along a length that is non-perpendicular to a m...	09/06/2005
6913447	Metering pump with varying piston cylinders, and with independently adjustable piston strokes A metering pump includes an actuating mechanism, and a plurality of piston cylinders coupled to the actuating mechanism. A first of the cylinders has a working volume that differs from a second of the cylinders. The actuating member is centrally located and the cyli...	07/05/2005
6779494	Balanced barrel-cam internal-combustion engine A multi-cylinder internal-combustion engine where translation between piston reciprocating motion and rotational motion occurs via a pair of conjugate axial cams with dual rolling followers on the piston-assemblies—one rolling follower per conjugate axial cam. A p...	08/24/2004
6725815	Cam-drive engine and cylinder assembly for use therein A cam-drive engine having one or more cylinder assemblies detachably affixed to an engine core that does not include a cylinder block per se. Each cylinder assembly can be attached to or detached from the engine core without the need for disassembly of the cylinder ...	04/27/2004
6694931	Internal combustion engine The improved internal combustion engine of the cam drive axial piston type includes modification to the drive shaft, bearings and other internal elements to facilitate the flow of oil and lubricants to engine parts. The cooling system is modified to allow...	02/24/2004
6575125	Dual torque barrel type engine The present invention is a barrel-type internal combustion engine. The engine is generally comprised of a plurality of cylinders arranged in in-line pairs, each in-line pair having a double headed piston therein. The cylinders are arranged surrounding a c...	06/10/2003
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
6279518	Rotary engine having a conical rotor A rotary engine includes a central rotor having a frustoconical shape with an ellipsoidal groove machined into the outer surface of the rotor. The rotor is rotated by the movement of a series of pistons mounted in cylinders surrounding the rotor. A series...	08/28/2001
6250264	Internal combustion engine with arrangement for adjusting the compression ratio The internal combustion engine has a plurality of cylinders which are arranged in an annular series about a common central drive shaft. Each cylinder includes a pair of opposed pistons which are movable towards and away from each other while defining a co...	06/26/2001
6202606	Axial-piston engine The invention relates to an axial-piston engine comprising a centrally located output shaft (1) and a plurality of piston-cylinder units (2) oriented parallel to the output shaft (1) and grouped symmetrically thereabout, a thrust yoke (5) mounted on said ...	03/20/2001
5992357	Piston driven axial cylinder engine Piston driven axial cylinder engine is composed of the flange (1) with the cylinders (10) in a circular disposition, the support (16) of the motor main shaft (2), and the carrier (20) supporting the central pivot (7). Around this central pivot (7), the di...	11/30/1999
5950580	Reciprocating engine with crankplate An internal combustion engine (12) having a rotating crankplate (33) mounted underneath the cylinders (45) and connected to the pistons (54) by connecting rods (72) that are constrained to move in a straight line up and down according to the movement of t...	09/14/1999
5890462	Tangential driven rotary engine A tangential driven rotary engine (10) comprising an engine block (12) having a plurality of cylinder combustion chambers (14) radially positioned therein. A plurality of pistons (16) are each movable and disposed within each cylinder combustion chamber (...	04/06/1999
5749337	Barrel type internal combustion engine A barrel type engine with two-stroke cycle of operation. The engine of the present invention comprises two engine halves, each half having a plurality of pumping cylinders and a matching number of power cylinders. Double-ended pistons impart rotational mo...	05/12/1998
5647308	Crank mechanism system for the transformation of reciprocating linear motion into rotary motion, particularly suitable for reciprocating endothermic engines The present invention relates to a crank system for the transformation of reciprocating linear motion into rotary motion, particularly suitable for reciprocating endothermic engines, comprising a wheel or rotating connection rod (2), idly provided on the ...	07/15/1997
5517953	Stepped piston axial engine A highly pressurized internal combustion engine, wherein arrangements to balance the intake flow of air that passes from the turbochargers to a windchest, through spring valves to compressor cylinders, that force the charge into a pressure chamber to supp...	05/21/1996
5452689	Rotary valve cam engine A rotary valve cam engine of the type described in U.S. Pat. No. 3,456,630 and No. 4,610,223, where the bearing area to take the rotational forces of the cams and the thrust forces of the pistons are improved. Also an improved means of sealing the compres...	09/26/1995
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
4635590	Internal combustion engine and operating cycle therefor An internal combustion engine includes a plurality of cylinders arranged parallel to and equally spaced from a longitudinally extending engine axis with a pair of opposed pistons mounted in each cylinder for controlled reciprocation therein. Respective ro...	01/13/1987
4565165	Internal combustion engine A hyper-expansion internal combustion engine operable using a cycle having expansion, exhaust, intake and compression phases comprising at least one pair of opposed pistons which reciprocate in cylinder portions which are in fluid communication with each ...	01/21/1986
4366784	Crankless cam driven piston engine A lightweight crankless piston engine utilizes cam action to produce two piston strokes for one revolution of the engine output shaft, which shaft does not pierce the piston or the combustion chamber. Ease of assembly is enabled. One section of the cam is...	01/04/1983

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Class 123/56.2 - Cam on rotary output shaft