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Class 123/54.3 - Cam on rotary output shaft


Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine wherein the rotary output shaft
No. of patents: 39
Last issue date: 05/17/2011


NumberTitleIssue Date
7942115System for transformation of rectilinear motion into curvilinear motion, or vice versa, particularly for internal combustion engine
The invention relates to an improved system for transformation of rectilinear motion into curvilinear motion, or vice versa, in an internal combustion engine. The system comprising a rotor element and a stator element, one of said the rotor element and stator elemen...
05/17/2011
7814872Multi-piston camwheel engine
An engine is disclosed. In one implementation, the engine includes a camwheel mounted to an output shaft. Eighteen cylinder-enclosed pistons are positioned in a circular plane about the camwheel such that the radius of the circular plane and the camwheel are coplana...
10/19/2010
7284513Internal combustion engine without connecting rod and a method of its construction
The invention relates to the structure of internal combustion engine without a connecting rod and a method of its construction. The proposed method of construction describes the consecutive steps in creating the engine and allows the creation of internal combustion ...
10/23/2007
7225721Hydraulic motor
The motor comprises a cam and a cylinder block mounted to rotate one relative to the other. The cam comprises a plurality of cam lobes and the cylinder block has a plurality of cylinders slidably receiving pistons that are suitable for co-operating with the cam. The...
06/05/2007
7219631High 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
7137365Radial 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
7121252Dynamic 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
7100549Mechanism 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
7040262Expansible chamber engine with undulating flywheel
This engine relies on a flywheel having a flywheel axis and an undulating cam surface. A piston wit a roller at its base is positioned in a cylinder such that the roller abuts the undulating cam surface at some radial distance from the flywheel axis. Thus, as the pi...
05/09/2006
7017534Piston-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 having a peripheral surface and having a plurality of lobes ther...
03/28/2006
6904877Piston motion modifiable internal combustion engine
An internal combustion engine (10) including at least two radial cylinders (17) disposed with their axes coplanar and equi-angular located relative to each other. The cylinders (17) meet to form a common combustion chamber (18). A piston ...
06/14/2005
6691648Radial cam driven internal combustion engine
A radial cam driven internal combustion engine has connecting rod guide pins that slide into ends of the connecting rods, allowing the connecting rods to slide freely linearly while applying side loads on the connecting rods to the crankcase. The stationa...
02/17/2004
6279518Rotary 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
6213082Drive 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
5875755Low compression ratio internal combustion engine
A low compression ratio internal combustion engine with extended dwell at or near piston top dead center to facilitate substantially complete combustion providing a higher engine output power. A pre-combustion chamber passes high temperature and pressure ...
03/02/1999
5836234Single CAM reciprocating linked piston type engine
A single cam reciprocating linked piston type engine utilizes a swing-link linking mechanism to make two pistons arranged at an included angle slide alternately up and down, or utilizes a linking-rod to make two pistons arranged on an identical axis recip...
11/17/1998
5765512Rotary-linear power device
Apparatus for converting between rotary motion and reciprocating linear motion includes a sleeve mounted for rotation about a predetermined axis, radially reciprocable pistons located radially outwardly of the sleeve, and axially reciprocable pistons loca...
06/16/1998
5634441Power 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
5606938Tri-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
5553574Radial cam internal combustion engine
A radial internal combustion engine with a rotatable cam unit. A cam follower is attached to the end of each rod connecting rod for engagement with the cam unit. Rod guide means is provided to maintain alignment of the connecting rods. A further embodimen...
09/10/1996
5529029Tri-lobed cam engine
In an engine having free floating reciprocating pistons each with a cam follower which bears on a tri-lobed cam, each cam follower is supported by a guide bearing running in a track which serves to transmit to the track lateral reactive force components g...
06/25/1996
5479780Circular internal combustion engine
A circular internal combustion engine includes a torque shaft, a central cam connected to the torque shaft, a stationary middle ring located about the central cam, and, an exhaust ring assembly located about the middle ring and connected to the torque sha...
01/02/1996
5357911Four-stroke radial-piston engine
On the rotary drive shaft of a four stroke engine is non-rotationally mounted a hub supporting four cylinders wherein pistons are arranged for reciprocal movement radially towards the hub. The hub is providing with a combustion chamber having common inlet...
10/25/1994
5315967Internal combustion rotary engine having a stacked arrangement of cylinders
An internal combustion engine having a crankcase with a crankshaft and cylinders radiating from the crankcase, where the cylinders are circumferentially spaced apart. There are eccentric cams on the crankshaft which contact reciprocating pistons to move t...
05/31/1994
5297448Crank mechanism
A crank mechanism for an internal combustion engine comprises a cylinder, a piston reciprocalable within the cylinder, and a rotatable shaft. The piston is in drivable in connection with the shaft via a connecting rod, a slipper, and a torque lob. The con...
03/29/1994
4974553Rotary internal combustion engine
A rotary internal combustion engine wherein the cylinders making up the engine block are radially disposed in a common plane and rotate with the output shaft. The engine block rotates within a surrounding cam surface and the pistons in each cylinder move ...
12/04/1990
4545336Engine 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
4493296Three 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
4387672Energy 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
4381740Reciprocating engine
A reciprocating piston engine is provided with cyclinders arranged radially about a rotatable drive shaft and a separate piston adapted to reciprocate in each cylinder. Each piston is held in contact with a cam mounted on the shaft by means of linkages an...
05/03/1983
4334506Reciprocating rotary engine
Rotary engine having a hollow, stationary block with manifolds for air inlet and exhaust valving and means for supplying fuel. The block supports one or more in-line cylinders which are provided with opposed pistons equipped with rigid and constrained pis...
06/15/1982
4128084Rotary engine
The present invention discloses a rotary engine having a cylindrical stator with a plurality of radially arranged cylinders each having a piston, a shaft is rotatably mounted co-incident with the longitudinal stator axis, and an orbitor having a cylindric...
12/05/1978
4121422Power plant
An internal combustion two stroke engine is provided having at least one cylinder within which a piston reciprocates. The engine is joined to a gear box which includes a ring gear. A pair of gears having diameters half that of the ring gear move within th...
10/24/1978
4094278Two-stroke combustion engines
A two-stroke combustion engine with intake and exhaust ports which are indirectly or directly controllable in accordance with the reciprocating motion of a working piston in a cylinder space, wherein at one side of the piston there is a working chamber ac...
06/13/1978
4077267Fluid transducer
A fluid transducer including a reciprocatory piston member and a drive mechanism for converting reciprocation of the piston member into rotation of a rotary member coupled to the mechanism, or vice versa. The drive mechanism includes a first elliptical me...
03/07/1978
4038949Rotary-radial internal combustion engine
A rotary-radial internal combustion engine wherein a piston-containing cylinder housing and cam means are mounted in an engine housing for relative rotary motion with respect to each other; said cylinder housing including diametrically opposite combustion...
08/02/1977
3964450Rotary cam internal combustion radial engine
This disclosure is directed to a rotary-cam, internal-combustion, radial, 4-cycle, 6-cylinder engine comprising a stationary motor block adapted to operably receive a dual set of pistons, each set thereof being juxtaposed to the other, having their respec...
06/22/1976
3948230Rotary 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
3942488Cam transmission internal combustion engine
A power shaft is journalled within a stationary housing having a cylinder formed therein. The axis of the cylinder is radial to the axis of the power shaft. A lever arm pivotally carried by the housing is linked by a connecting rod to a piston slidably di...
03/09/1976
 
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