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| Number | Title | Issue Date |
| 7469664 | Internal combustion engine An internal combustion engine is disclosed having opposed cylinders, each cylinder having a pair of opposed pistons. All the pistons may be connected to a common central crankshaft. The inboard pistons of each cylinder may be connected to a common joint on the crank... | 12/30/2008 |
| 7350497 | Outboard motor lubrication system A lubrication system of an outboard motor delivers lubricant to an internal combustion engine. The internal combustion engine is supported by an upper end of a case. The lubrication system has an oil pan configured to hold lubricant oil. An oil conduit has a lower e... | 04/01/2008 |
| 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 |
| 7284513 | Internal 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 |
| 7281519 | Set of piston type fuel pumps for internal combustion engines with direct fuel injection A plurality of piston pumps form a set of piston pumps, each including one drive region and at least one pumping region. The a set of piston pumps includes at least two piston pumps of different models, and the pumping regions of all the piston pumps the set are emb... | 10/16/2007 |
| 7270092 | Variable displacement/compression engine An internal combustion engine with improved efficiency provides continuous variable displacement and/or compression ratio tuning to one of a number of fuel types to be used by the engine. By varying displacement without changing the compression ratio, the engine can... | 09/18/2007 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6978743 | Intake device for a W-12 reciprocating piston internal combustion engine In an intake device for a W-12 reciprocating piston internal combustion engine with three rows of cylinders of four cylinders each, a structurally favorable and functionally advantageous arrangement is achieved with two intake distributors, each of which is connecte... | 12/27/2005 |
| 6941837 | Bilateral connecting rod apparatus An apparatus and method provide a true bilateral connecting rod apparatus having a crankshaft defining an axis of rotation and a rod journal eccentrically mounted for circular rotation about the axis, and a pair of connecting rods attached to the rod journal for rec... | 09/13/2005 |
| 6904883 | Modular internal combustion engines A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankc... | 06/14/2005 |
| 6895921 | Epicyclic cross piston internal combustion engine An epicyclic cross piston engine having a four, six or more cylinders. It has individual pairs of pistons rigidly connected together by connecting rods. The pistons travel axially in their respective cylinders for a complete reciprocal cycle. The cylinders are orien... | 05/24/2005 |
| 6769384 | Radial internal combustion engine with floating balanced piston A radial piston engine is disclosed wherein power is transferred such that the power take-off is truly balanced, where the piston runs truly parallel to the cylinder walls. This concept reduces wear of the cylinders and piston rings. The engine provides improved gas... | 08/03/2004 |
| 6571754 | Internal combustion engine An internal combustion engine for propelling a vehicle. The internal combustion engine includes a block having a substantially X-shaped cross-section. Each of the legs constituting a bank of cylinders, with a manifold assembly coupled between adjacent ban... | 06/03/2003 |
| 6412454 | Rotary power unit A rotary power unit, comprising a housing having a circular opening and a plurality of bores extending along a radial axis from a center of the opening, a nodular rotor mounted within the opening of the housing and coaxially rotatable within the opening. ... | 07/02/2002 |
| 6257178 | Internal combustion engine for a motorcycle This invention relates to an internal combustion engine for a motorcycle, with two or more single cylinders arranged in a plane approximately normal to a crankshaft, each cylinder accommodating a reciprocating piston and the pistons acting via connecting ... | 07/10/2001 |
| 6213064 | Double throw engine An engine is described having pistons and cylinder arranged in mutually orthogonal pairs. Each pair is driven by a respective crank, with the pairs of cranks rotating about a primary crank which in turn rotates about an axis orthogonal to the axes of the ... | 04/10/2001 |
| 6193189 | Rotary engine and helicopter application In a rotary engine having rotating cylinders which burns a fuel which is not mixed with oil there is a real problem of centrifugal force form the rotating engine causing oil to flow into the combustion chambers. The disclosed rotary engine has oil reservo... | 02/27/2001 |
| 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 |
| 6058901 | Offset crankshaft engine The cylinders (12; 48, 50) are disposed such that each piston-cylinder axis (16; 56, 58) does not intersect the crankshaft axis (20; 47). Timing of combustion within each cylinder is controlled to cause maximum combustion pressure to occur when an imagina... | 05/09/2000 |
| 5803039 | Piston-cylinder assembly and drive transmitting means A cylinder body has a bore and an annular recess in communication with the bore. A piston is mounted for reciprocation within the bore, the piston having an annular skirt which reciprocates within the recess. A connecting rod has one end pivotally connect... | 09/08/1998 |
| 5765512 | Rotary-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 |
| 5660151 | Apparatus for mutual conversion between circular motion and reciprocal motion An apparatus for mutual conversion between circular motion and reciprocal motion includes a lever member which is rotatably mounted on a line connecting a rotational center and a circumference of a rotary disk, the lever member having a fulcrum, an action... | 08/26/1997 |
| 5636599 | Cylinder assembly A unitary cylinder useful in internal combustion engines having external threads at one end for a connection with the engine; the cylinder providing internal bearing support to an associated piston mounted internally thereof and external bearing support t... | 06/10/1997 |
| 5341781 | Reduced component internal combustion engine An engine block is formed by a single piece lower crankcase and a single piece upper crankcase having abutting surfaces sealed with a gasket. The abutting surfaces have semicircular notches aligned with one another to form a circular opening for a cranksh... | 08/30/1994 |
| 5119770 | Multi-cylinder engines In an internal combustion engine having two or more coplanar cylinders radially disposed about a crankshaft, a crankshaft journal bearing arrangement in which the big ends of the connecting rods are each formed as segments of a continuous circular bearing... | 06/09/1992 |
| 5056475 | Motion conversion mechanism for converting between rotating and reciprocating motion and an internal combustion engine using the same mechanism A motion conversion mechanism for use between a rotating motion and a reciprocating motion, and an internal combustion engine adopting the said motion conversion mechanism are disclosed, in which the motion conversion mechanism is constituted such that a ... | 10/15/1991 |
| 4938175 | Engine, particularly for ultralight aircraft An engine, particularly for ultralight aircraft, comprises an engine block carrying at least one pair of autonomous drive units with respective driving shafts connected independently to a common output shaft by means of respective one-way transmission uni... | 07/03/1990 |
| 4926803 | Radial-piston engine In order to obtain a self-control of the working pistons with a simple, space-saving construction in the case of a radial-piston engine having pot-shaped pistons which are in contact with the circumference of an eccentric shaft and into which there engage... | 05/22/1990 |
| 4616604 | Stator-Rotor piston internal combustion engine A Stator-Rotor piston internal combustion engine (50) is diclosed having two identical stator halves (5) with an equal number of cylinders in each of them, a flat rotor (6) with two internal gear rings (12) fitted on its periphery and two auxiliary gears ... | 10/14/1986 |
| 4395977 | Reciprocate internal combustion engine A four-stroke reciprocate internal combustion engine which has at least one conventional piston mounted on a carrier body of a power transmission mechanism and both sliding in line on sliding means attached to the engine stator in a linear reciprocate mot... | 08/02/1983 |
