Class 123/54.2 - Star

Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine wherein at least three cylinders
No. of patents: 39
Last issue date: 04/08/2008

Number	Title	Issue Date
7353784	Rotary internal combustion engine A rotary internal combustion engine has a circular inner chamber, which houses a plurality of cylinders with reciprocating pistons that move in a radial direction towards and away from the center of the inner chamber. A flywheel with distinct vanes or portions is po...	04/08/2008
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
7240648	Radial engine A four-stroke radial engine comprises cylinders arranged radially with respect to a driving shaft of said radial engine and pistons associated with said cylinders, said pistons being connected to said driving shaft by means of respective connecting rods which are ro...	07/10/2007
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
7121163	Lubricating system for power unit for vehicle with internal combustion engine A lubricating system for a power unit for a vehicle with an internal combustion engine. A static oil hydraulic type non-stage transmission is disposed on a left lateral side of a crankshaft, and a lubricating oil tank is formed integrally with a main body of the int...	10/17/2006
7086371	Engine To reduce the number of parts, improve the mountability and maintainability, and allow for a reduction in the size and weight an engine is provided having a crankshaft, a crankcase having a plurality of bearing portions for rotatably supporting the crankshaft with e...	08/08/2006
7077097	Crankshaft with continuous main journal and corresponding connecting structure A cranshaft including a continuous first or main journal and at least one eccentric second journal is disclosed. A corresponding connecting structure includes a pair of channels for receiving the journals. When the connecting structure is driven in a reciprocating f...	07/18/2006
7059208	Gearbox in all terrain vehicle power unit A gearbox permits easy assembly, simple structure, reduced number of parts required, and facilitated service of chains and sprockets in an automobile power unit; having a worm provided as one end of the main shaft in the gearbox to protrude out of the bearing; where...	06/13/2006
7024960	Connecting rod apparatus of hermetic compressor A connecting rod apparatus for converting a rotational motion to a reciprocal linear motion by connecting an eccentric portion of a crank shaft to a piston. The connecting rod apparatus has a bushing, a connecting rod and a connecting member. The bushing is rotatabl...	04/11/2006
6119640	Internal combustion engine with slot-type gas distribution The present invention pertains to the field of engine construction and relates to internal combustion engines with scavenging and more precisely to two-stroke engines. At the beginning of the exhaust stroke, the exhaust gases are expelled from the engine ...	09/19/2000
6062176	Multicylinder, two-stroke, radial engine for model airplanes and the like A multicylinder, two-stroke, radial, internal combustion engine employs a multi-blade positive-displacement pump for pressurizing a mixture of air/fuel/lubricant supplied to a plurality of cooperating cylinders. One of the pistons is connected to a master...	05/16/2000
5836234	Single 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
5749262	Crank mechanism A crank mechanism for an internal combustion engine comprises a cylinder (1), a piston (2) reciprocable within the cylinder, and a rotatable shaft (4). The piston (2) is a drivable connection with the shaft (4) via a connecting rod (3), a drive ring (5) a...	05/12/1998
5671702	Valve system in a rotary radial-piston engine On the rotary drive shaft (10) of a four-stroke engine is non-rotationally mounted a hub (11) supporting four cylinders (14) wherein pistons (16) are arranged for reciprocal movement radially towards the hub. The hub (11) is provided with a combustion cha...	09/30/1997
5655486	Engine combustion A machine having a piston unit within a cylinder arrangement wherein each piston unit comprises a plurality of in-line pistons within their respective cylinders such that the pistons are in fluid communication with a common compression chamber and where t...	08/12/1997
5203295	Internal combustion engine A multicylinder internal combustion engine includes a plurality of reciprocating pistons each having a piston rod connected to a ball cage arrangement for converting reciprocating motion of the piston rod into rotation of a shaft coaxial with the piston r...	04/20/1993
5197416	Radial internal combustion engine An internal combustion engine, especially a radial engine, with a crankcase, a crankshaft, cylinders, connecting rods on the crankshaft, and with pistons attached to the connecting rods and arranged to reciprocate within the cylinders. Each connecting rod...	03/30/1993
5195420	Piston compressor, particularly an oil-free piston compressor The crank mechanism of the piston compressor comprises individual crank disks (5), which each support on their outer circumference a rolling bearing (6) for the bearing of a connecting rod (4). The crank disks (5) are pressed together to form a package by...	03/23/1993
5189994	Internal combustion engine An internal combustion engine or like apparatus is disclosed utilizing an "ellipsograph" mechanism for converting the reciprocating motion of one or more pistons into rotational motion of an output element. The apparatus includes an orbital crankshaft cou...	03/02/1993
5150670	Radial internal combustion engine A radial internal combustion engine comprises an engine housing and a plurality of piston-cylinder pairs arranged on the periphery of the housing. The piston-cylinder pairs are arranged in two rows, three cylinders in each row. A connecting rod connects e...	09/29/1992
5146880	Radial cylinder machine A radial cylinder machine comprises a number of equispaced lobed shafts (7) which orbit about the central machine axis inwardly of the pistons (13). The lobed shafts (70) also rotate about their individual axes by virtue of planetary pinions on each shaft...	09/15/1992
5049039	Radial piston and cylinder compressed gas motor A radial piston and cylinder compressed gas motor is disclosed which is particularly suited for use where economical power sources are required. The motor includes a cylinder block having a plurality of radially extending cylinders open at their outer end...	09/17/1991
5046459	Oscillatory motion apparatus Oscillatory motion apparatus has a first reciprocating rod oriented generally perpendicularly with respect to a second reciprocating rod. A first trammel gear is pivotally secured to the first and second rods. Reciprocation of the rods produces responsive...	09/10/1991
5003935	Balanced radial engine A low cost multi cylinder radial aircraft engine is composed of an even number of individually functional, single cylinder slider crank model engines. They are mounted to a plate to form equally spaced radially oriented cylinders. In the preferred embodim...	04/02/1991
4970995	Internal combustion engines An internal combustion engine includes a piston slidingly sealed and constrained to move along a linear path in a cylinder, the piston having a rigid connecting rod which extends axially of the cylinder, a link constrained to move in an orbital path in a ...	11/20/1990
4957072	Balanced radial engine A low cost multi cylinder radial aircraft engine is composed of an even number of individually functional, single cylinder slider crank model engines. They are mounted to a plate to form equally spaced radially oriented cylinders. In the preferred embodim...	09/18/1990
4951618	Rotary engine A rotary engine construction of radially compact dimension. The engine comprises a cylinder block contained in a cylinder canister. The cylinders extend in a radial direction and have open outer ends though which the piston rods extend. A combination flyw...	08/28/1990
4850313	Cruciform engine A cruciform internal combustion reciprocating engine characterized by two right angularly related pairs of axially spaced cylinders with related piston units including pairs of axially aligned, axially spaced pistons, each piston is engaged in one of the ...	07/25/1989
4776304	Movement converter for use in an engine and the like A movement converter for use in a combustion engine or as an air compressor wherein reciprocating motion of a piston is converted to rotational motion of an output shaft or a rotational motion of an input shaft is converted to a reciprocating motion of th...	10/11/1988
4763619	Multicylinder internal combustion engine utilizing split block with unitized cylinder head and liner Multicylinder internal combustion engine of the type having a crankshaft and a block comprised of first and second mating half sections joined in a common plane which passes through and along the axis of the crankshaft. The half sections provides a crankc...	08/16/1988
4727794	Radial engine The disclosure teaches a novel radial engine. In accordance with the teachings of the disclosure, the radial engine includes a housing and a plurality of equally spaced openings disposed in a ring-like arrangement on the periphery of the housing. A respec...	03/01/1988
4682569	Oscillatory motion apparatus Oscillatory motion apparatus has a first reciprocating rod oriented generally perpendicularly with respect to a second reciprocating rod. A first trammel gear is pivotally secured to the first and second rods. Reciprocation of the rods produces responsive...	07/28/1987
4641611	Oscillatory motion apparatus Oscillatory motion apparatus has a first reciprocating rod oriented generally perpendicularly with respect to a second reciprocating rod. A first trammel gear is pivotally secured to the first and second rods. Reciprocation of the rods produces responsive...	02/10/1987
4512291	Internal combustion engine The radial internal combustion engine has two pairs of opposed cylinders arranged on axes at 90 degrees to one another. Each pair of cylinders has opposed pistons, interconnected by a piston rod and scotch-yoke assembly. A piston rod is rigidly connected ...	04/23/1985
4331108	Radial engine An engine comprising; a substantially cylindrical housing; a rotor rotatably mounted in said housing on an axis parallel with the longitudinal central axis of the housing to execute an orbital motion within the housing, a plurality of tubular elements eac...	05/25/1982
4194404	Crank assembly for reciprocating piston machines A crank assembly for coupling a plurality of connecting rods to a common crank pin of a crankshaft includes an articulation member journaled on the crank pin. The articulation member carries a plurality of knuckle pins arranged in a radial array about the...	03/25/1980
4026252	Engine construction A two-cycle engine wherein a pair of pistons are mounted within a pair of cylinders which are arranged in an oppositely facing in-line manner with the connecting rods of both pistons being also in-line and rotatably mounted upon a crank shaft, the crank s...	05/31/1977
3977303	Engines and compressors A piston and cylinder machine for use as a prime mover, pump or compressor in which there are at least two pairs of pistons and cylinders for each crankpin, the cylinders of each pair being disposed on opposite sides of the crankpin and rigidly connected ...	08/31/1976
3946706	Rotary machines comprising four cylinders in a star An explosion engine comprises: a rotary shaft with axis A; four cylinders 6, 7, 8, 9 in a star aligned in pairs on two axes B and C perpendicular to the axis A and to each other, but not coplanar; a first assembly of two pistons 10, 11 suitable to slide w...	03/30/1976

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Class 123/54.2 - Star