| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123540100 | Cylinders radiating | 55 |
| 20090266316 | Rotary Piston Engine - The rotary reciprocating piston engine as a rotor rotatably journaled in a housing and a plurality of pistons movable in radial direction in the rotor between outer and inner dead points. Each piston has a piston rod mounted on a transverse shaft carrying at each end a sliding element which is displaceable in radial grooves formed in the rotor on both sides of the piston. The sliding elements are each provided on the outer side thereof facing away from the piston with a pin received in a housing-fixed star-shaped endless guide groove. The guide groove extends about the axis of rotation of the rotor and controls the movement of the pistons in radial direction between the inner and outer deadpoints. | 10-29-2009 |
| 20110303167 | INTERNAL COMBUSTION ENGINE - An internal combustion engine, having at least two cylinder banks, each cylinder bank having two outer high pressure cylinders and a central low pressure cylinder, reciprocating pistons of the cylinders being coupled via connecting rods to crankpin journals of a crankshaft, valves of the cylinders to be actuated via camshafts which can be driven from the crankshaft, crankpin journals on which the connecting rods of the high pressure cylinders act, lying in a common plane, crankpin journals on which the connecting rods of the low pressure cylinders act, being offset with respect to said plane, and the crankpin journal for the connecting rod of the low pressure cylinder of a first cylinder bank being offset with respect to the crankpin journal for the connecting rod of the low pressure cylinder of a second cylinder bank. | 12-15-2011 |
| 20130152884 | EXHAUST VALVE CONTROL SYSTEM - An exhaust valve control system of an engine includes a first bank including a plurality of cylinders and a second bank including a plurality of cylinder, in which the angle between the exhaust cam profiles of any two cylinders in the first bank is different by a predetermined angle or more from 180°, and the angle between the exhaust cam profiles of any two cylinders in the second bank is different by a predetermined angle or more from 180°. | 06-20-2013 |
| 123540200 | Star | 9 |
| 20080283002 | Multi-Cylinder Two-Stroke Radial Engine - Multi-cylinder two-stroke radial engine, specially intended for use in models with a cubature in the order of 0.30-1.20 in | 11-20-2008 |
| 20090255491 | SPLIT-CYCLE AIRCRAFT ENGINE - A split-cycle aircraft engine includes a crankshaft rotatable about a crankshaft axis. A power piston is slidably received within a power cylinder and is operatively connected to the crankshaft such that the power piston reciprocates through an expansion stroke and an exhaust stroke during a single rotation of the crankshaft. A compression piston is slidably received within a compression cylinder and is operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke during a single rotation of the crankshaft. A gas crossover passage operatively interconnects the compression cylinder and the power cylinder. An air reservoir is operatively connected to the gas crossover passage by a reservoir passage. The air reservoir is selectively operable to receive and deliver compressed air. The engine is mounted to an aircraft and the air reservoir is disposed within the aircraft. | 10-15-2009 |
| 20100071640 | INTERNAL COMBUSTION ENGINE WITH DUAL-CHAMBER CYLINDER - Improvements in a gas powered engine. Said improvements include use of a piston with a fixed piston arm that extends through a seal in the lower portion of the cylinder. In a four-stroke engine the down chamber uses a supercharger for the upper chamber cylinder engine. In the two-stroke engine the down chamber is used as a compressor chamber and the compressed air passes to the upper chamber. The piston arm operates on an elliptical crank that drives the output shaft. Valves that move air and exhaust into and out of the pistons are lifted by a cam located on the crank. A unique oil injector passes oil between the rings when the piston in at the bottom of the stroke. | 03-25-2010 |
| 20110226199 | RADIAL INTERNAL COMBUSTION ENGINE WITH DIFFERENT STROKE VOLUMES - A radial internal combustion engine employing a hypocycloidal connection between the crankshaft and the piston connecting rods, creating different stroke volumes on the intake stroke and the power stroke, thus increasing combustion excursion and saving energy. | 09-22-2011 |
| 123540300 | Cam on rotary output shaft | 5 |
| 20080271687 | Two-stroke opposite radial rotary-piston engine - A two-stroke opposite rotary-piston engine comprises a cylinder block including a sleeve and two pistons slidely disposed therein, oppositely movable forming a common combustion chamber and a first gap with sleeve's sidewalls, a rotor having a surface formed by an ellipse or Cassini line, traverses attached to the pistons, rollers attached to the traverses and springly depressed against the rotor, oil tubes with end bushings, oil supply and withdraw means, two plungers disposed in each tube forming a second gap essentially less than the first. The plungers are attached to the traverses and oppositely movable, including through channels, outward surfaces with the bushings forming external spaces, and inward surfaces with the tube sidewalls forming an internal space communicating with the oil supply and withdraw means. Oil drain means communicate the external spaces with the oil supply means. The engine absorbs side and inertial forces, is more efficient and clean. | 11-06-2008 |
| 20100326381 | Multi-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 coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft. | 12-30-2010 |
| 20120167843 | Multi-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 coplanar. Lobes integrally formed on the camwheel define a guiderail including a continuously, substantially sinusoidal surface biased for rotation in the direction of the rotary motion of the output shaft. Drive bearings associated with each piston engage and maintain contact with the guiderail. The rotary motion is obtained by transferring the displacement of the plurality of pistons from respective top dead center positions and bottom dead center positions to the guiderail, thereby rotating the camwheel and output shaft. | 07-05-2012 |
| 20130233259 | ROTARY CAM RADIAL STEAM ENGINE - A rotary cam radial engine formed of two primary components engaged at a mid section to allow for an easy repair to the vehicle. The device features a body having radially oriented apertures; and a plurality of pistons in a respective reciprocating engagement, within each respective said cylinder. The pistons are driven by low pressure fluids and/or a vacuum and the engine being formed of two main components can be taken apart without tools for maintenance and reconfiguration. | 09-12-2013 |
| 20140360446 | Hybrid Vehicles with Radial Engines - A radial cam engine with an optimized cam configuration can provide improve performance over crankshaft internal combustion engines. The cam configuration can include a flat-top or flat bottom piston motion, multiple lobe cam configurations, matching piston force with torque/force ratio in combustion phase, asymmetry piston motions for improved power transfer during combustion phase, and/or offset piston and cam configurations. The radial cam engine can be used in vehicles, such as hybrid vehicles. | 12-11-2014 |
| 123540400 | "V" type | 33 |
| 20080236522 | V-Type engine and motorcycle incorporating same - A V-type vehicle engine includes a main engine body with a front bank and a rear bank defining a V-type structure. A plurality of valve actuation units are respectively located in valve chambers in the front bank and the rear bank, to minimize the size of a cylinder head and a cylinder head cover in at least one of the front bank and the rear bank. A first valve actuation unit, with a double overhead camshaft structure having intake-side and exhaust-side camshafts individually corresponding to the intake valve and the exhaust valve, is located in a valve chamber in one of the front bank and the rear bank. A second valve actuation unit, having a common single camshaft for the intake valve and the exhaust valve, is located in a valve chamber in the other one of the front bank and the rear bank. | 10-02-2008 |
| 20080264361 | V-TYPE ENGINE - In a V-type engine, intake and exhaust rocker arms in each bank are arranged in a substantially inverted-V-shape in a plan view, so that side end portions of corresponding intake and exhaust push rods are positioned adjacent to each other. Slipper portions of first and second intake cam followers have end portions at one end along the axial direction of a camshaft protrude respectively in opposite directions to each other so that they face each other across an intake cam therebetween. Slipper portions of first and second exhaust cam followers have end portions at one end along the axial direction of the camshaft protrude respectively in opposite directions to each other so that they face each other across an exhaust cam therebetween. This reduces the distance between the push rods in each bank to provide a compact valve-operating device. | 10-30-2008 |
| 20090090316 | ENGINE BODY STRUCTURE - A timing gear case | 04-09-2009 |
| 20090101088 | Engine Unit And Vehicle Provided With The Same - An engine unit with a decreased height dimension and longitudinal length comprises an engine and a throttle body assembly. The throttle body assembly includes front and rear throttle bodies formed with front and rear air cylinders and throttle valves. A fuel supply pipe is arranged between central axes of the air cylinders in a longitudinal direction to extend widthwise in a lower position than upper ends of the throttle bodies. A motor for driving throttle valves is arranged between the central axes of the air cylinders in the longitudinal direction. An axis of a rotating shaft of the motor is positioned forwardly or rearwardly of a central axis of the fuel supply pipe. | 04-23-2009 |
| 20090205591 | Internal Combustion Engine - A v-twin type engine ( | 08-20-2009 |
| 20090241868 | Air cleaner assembly for a small V-type engine, engine incorporating same,and motorcycle incorporating same - An air cleaner for a V-type internal combustion engine includes a filter housing with introduction ports formed in both left and right lateral walls communicating with respective air intake ducts and a pair of cleaner elements fixedly disposed in the filter housing to partition the inside thereof into an upper unfiltered air chamber communicating with both the introduction ports and a filtered air chamber disposed below the unfiltered air chamber. The cleaner elements are disposed on both sides of a vertical plane passing through a vehicle body centerline, extend forward and rearward of the air introduction ports, and are inclined to be gradually lowered as they extend away from the vertical plane to face the respective air introduction ports. | 10-01-2009 |
| 20090241869 | VEHICLE AND PROPULSION SYSTEM INCLUDING AN INTERNAL COMBUSTION ENGINE - An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of pushrods, and a plurality of camshafts supported by the crankcase. The two banks of cylinders include a first cylinder bank that projects from the crankcase to a first cylinder head, and a second cylinder bank that projects from the crankcase to a second cylinder head. The plurality of intake and exhaust valve pushrods extend between the crankcase and the first and second cylinder heads, driven by one intake camshaft and two exhaust camshafts. | 10-01-2009 |
| 20090293822 | GENERAL-PURPOSE V-TYPE ENGINE - To a first bank B | 12-03-2009 |
| 20090301415 | V-TYPE ENGINE - In a V-type engine in which first and second banks arranged in a V-shape are provided continuously to a crankcase, and in which a carburetor is placed at a valley between the first and second banks, the carburetor is placed spaced from the first and second banks. Further, the carburetor is connected to intake ports of the first and second banks via first and second intake pipes, respectively, and first and second heat shield plates each made of synthetic resin are attached to side faces of the respective first and second banks, the side faces facing the carburetor, each of the first and second heat shield plates covering a corresponding one of the side faces and defining a cooling air passage between the heat shield plate and the side face. Accordingly, it is possible to surely prevent heat from the banks from affecting the carburetor in order to prevent percolation in the carburetor even in the case where the engine stops its operation in a high-temperature state. | 12-10-2009 |
| 20090314231 | V-type internal combustion engine including throttle valve device, and vehicle incorporating same - A V-type internal combustion engine includes a crankcase, a crankshaft disposed in the crankcase, and first and second banks operatively attached to the crankcase. The engine also includes a throttle body, an electric motor and a force-transmitting device arranged between the first and second banks. The force-transmitting device is disposed adjacent the front bank with respect to the throttle body. The force-transmitting device is disposed on a non-transmitting portion side opposite to a side where a timing mechanism is located with respect to a branch pipe of an intake air routing pipe, which supplies intake air into a cylinder adjacent to the timing mechanism of the first bank. An electric motor for operating the throttle valve is provided in the throttle body, and fuel injection valves are arranged between the banks. | 12-24-2009 |
| 20100031905 | Exhaust System for an Internal Combustion Engine - An exhaust system has first and second exhaust gas turbochargers for a V-8 internal combustion engine. A first cylinder bank includes four cylinders arranged in series side-by-side, and a second cylinder bank situated opposite the first cylinder bank includes the other four cylinders arranged in series side-by-side. The internal combustion engine has an ignition sequence of a 90° crank angle from one cylinder to the next. The exhaust system includes a first, a second, a third and a fourth exhaust line from the cylinders to the two exhaust gas turbochargers, with two cylinders respectively being assigned to an exhaust line. One exhaust turbocharger is respectively assigned to two exhaust lines. The two cylinders assigned to an exhaust line having an ignition interval of a 360° crank angle. The first and the second exhaust lines assigned to an exhaust gas turbocharger having an ignition sequence displaced with respect to one another by a 180° crank angle. As a result, the opening phase of the charge cycle intake valves can be prolonged, which leads to a significantly higher power of the internal combustion engine. | 02-11-2010 |
| 20100170457 | Diesel Engine - Certain exemplary embodiments can provide a system, machine, device, and/or manufacture that can comprise: a V-type water-cooled diesel engine comprising: a first cylinder and a second cylinder disposed in a V-shape; a plurality of injection pumps adapted to serve each respective cylinder; and a fuel governor adapted to control fuel from the injection pumps, said fuel governor disposed between said cylinders; wherein said governor is an electrical governor and disposed outside a crankcase that is located between the cylinders, and said plurality of injection pumps are mounted on a cover of said crankcase. | 07-08-2010 |
| 20100192880 | EXHAUST PIPE STRUCTURE FOR SADDLE-RIDE TYPE VEHICLE - An exhaust-pipe structure for a saddle-ride type vehicle includes expansion paths each having a capacity appropriate for the output capacity of a corresponding cylinder. A front exhaust pipe and a rear exhaust pipe extend from a front cylinder and a rear cylinder constituting a V-type engine, respectively. A silencer is connected to rear end portions of the front and rear exhaust pipes. As expansion chambers, the silencer is provided with a lower first chamber led from the front cylinder and an upper first chamber led from the rear cylinder. A protruding space protruding from the lower first chamber is formed so that the capacity of the lower first chamber led from the front cylinder is larger than the capacity of the upper first chamber led from the rear cylinder. | 08-05-2010 |
| 20100242870 | VEHICLE INTERNAL COMBUSTION ENGINE - A vehicle internal combustion engine wherein the vertical length of a crankcase is made short in addition to making short the anteroposterior length of the crankcase. A vehicle internal combustion engine is configured such that a crankshaft, a main shaft, a counter shaft and an output shaft are arranged in parallel in a crankcase with the main shaft being disposed to the rear of the crankshaft and the counter shaft is disposed to the rear of the main shaft. The output shaft is disposed below and forward of the counter shaft. | 09-30-2010 |
| 20100242871 | V-TYPE INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE TRAIN - A V-type internal combustion engine having a variable valve train for keeping the height of the internal combustion engine low. Disclosed is a V-type internal combustion engine with a variable valve train that uses an actuator to vary the phase/lift amount of camshafts. The actuator is mounted on head covers for each of a plurality of cylinder blocks arranged in a V-shape. The actuator is attached to a lateral surface positioned opposite the offset direction of the head covers. In an embodiment, the actuator is attached to a lateral surface of the head covers and positioned close to the inside of the V banks. | 09-30-2010 |
| 20100242872 | FUEL FEEDING DEVICE OF A V-SHAPED ENGINE FOR MOTORCYCLE - A motorcycle mounted with a V-shaped engine in which a front bank and a rear bank are disposed like a V-shape and a fuel pump for fuel injection is mounted. The fuel pump is driven by a camshaft of a cylinder head, and mounted on the upside of the cylinder head. The fuel pump is fitted is the cylinder head of the front bank at the back of a head pipe. A fuel chamber is provided between the fuel pump an the injectors, the fuel chamber is disposed lengthways in the vertical direction in the V-bank space K, and a lower end part is disposed facing the sides of the injectors, and connection to the injectors by fuel pipes extending from the lower end part substantially horizontally. With this configuration, the fuel pump does not obstruct other components in the motorcycle, and is protected without a special cover. | 09-30-2010 |
| 20110023800 | MIRROR-IMAGE CYLINDER HEADS - A vee-engine has left and right cylinder banks have valve configurations that are mirror images of each other. The exhaust valves and associated exhaust ports are situated more toward the rear of the engine than the intake valves in any particular cylinder. With all the exhaust valves nearer the rear of the engine, the overall exhaust manifold runner length between the ports and the turbocharger is reduced relative to an engine with offset cylinder banks where exhaust valves in one bank are located nearer the front of the engine than exhaust valves of the other bank. | 02-03-2011 |
| 20110155083 | ADJUSTABLE VALVE TRAIN FOR AN INTERNAL COMBUSTION ENGINE, AND ENGINE AND MOTORCYCLE INCORPORATING SAME - A valve train for an internal combustion engine includes a camshaft, a valve-operating cam for operating an engine valve, and a link mechanism for swinging the valve-operating cam. The valve train also includes a holder member operable to turn around the camshaft, and a drive mechanism operable to turn the holder member for varying positions of the link mechanism. The drive mechanism includes a ball screw provided perpendicularly to the camshaft, a slider threadably engaged with the ball screw, an arm member swingably attached to the slider, and a connecting bolt having one end secured to an arm-connecting portion of the arm member, and the other end secured to the holder member. In such movable valve train for an internal combustion engine, the holder member and the drive mechanism are connected to each other with a small and lightweight configuration, requiring a minimal number of parts. | 06-30-2011 |
| 20110168110 | TURBOCHARGED INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a number of power cylinders furnishing exhaust gases to at least two turbochargers having a common air inlet housing which is divided into a separate compressor housing for each of the turbochargers. | 07-14-2011 |
| 20110174247 | CENTRAL TURBOCHARGER MOUNTING CONFIGURATION FOR A TWIN-TURBO ENGINE - The following description relates to a central turbocharger configuration in a V-engine with two turbochargers. In one example approach, A V-engine having a first and second bank forming a valley therebetween, comprises: first and second in-board exhaust manifolds on the first and second banks, respectively; first and second turbines coupled to the first and second manifolds, respectively; the first and second turbines between the first and second exhaust manifolds; a passage intermediate to and coupling outlets of the first and second turbines; and a junction branching from the passage downward into the valley. | 07-21-2011 |
| 20110185993 | IN-SITU GRAPHITE SHAPE CONTROL FOR IRON CASTINGS - A method to produce cast iron articles with various graphite morphologies is disclosed that provides cast iron with tailored properties at different locations of the article. Flake graphite morphology is preferably created at locations requiring excellent thermal conductivity or lubricity. Spheroidal graphite morphology is preferably created at locations requiring excellent strength or mechanical fatigue life. These methods may be particularly valuable for the production of heavy duty diesel engine components. | 08-04-2011 |
| 20110226200 | AXIAL FLOAT PLATE - A camshaft drive mechanism used in V-twin engines provided with dual camshafts. An axial float plate is provided to control the longitudinal movement of the camshafts. This plate is provided on flanges of the camshafts, thereby eliminating the thrust washers used in prior art V-twin engines. | 09-22-2011 |
| 20110253080 | Intake Manifold with Overmolded Structural Enhancement - A composite intake manifold coupled to a V-engine is provided. The composite intake manifold includes a supporting member overmolded in an unsupported region of the composite intake manifold. | 10-20-2011 |
| 20110265745 | VEHICLE AND PROPULSION SYSTEM INCLUDING AN INTERNAL COMBUSTION ENGINE - An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase, two banks of cylinders projecting from the crankcase in a 56-57 degree V-configuration, a plurality of pushrods, and a plurality of camshafts supported by the crankcase. The two banks of cylinders include a first cylinder bank that projects from the crankcase to a first cylinder head, and a second cylinder bank that projects from the crankcase to a second cylinder head. The plurality of intake and exhaust valve pushrods extend between the crankcase and the first and second cylinder heads, driven by one intake camshaft and two exhaust camshafts. | 11-03-2011 |
| 20110277709 | SUPERCHARGED ENGINE SYSTEM - A system for supplying compressed air to an engine is presented. In one embodiment, the system includes a cylinder block that forms at least part of an air compressor housing. The system may improve engine balance and reduce engine assembly cost. | 11-17-2011 |
| 20110315099 | FUEL FEED SYSTEM FOR V-TYPE ENGINE - The fuel feed system, used for a fuel feed system having an air intake path disposed in a V-form bank space, has injectors for jetting therethrough a fuel into the air intake path, and a delivery pipe for feeding therethrough the fuel to the injectors, wherein the delivery pipe is fixed to, and thereby supported by, the engine, while allowing the top portions of the injectors to be fitted into the delivery pipe, and the included angle formed between a pair of injectors, opposed on the front and rear sides of the delivery pipe placed in between, is set wider than the bank angle of the cylinder banks as viewed in the longitudinal direction or crankshaft. | 12-29-2011 |
| 20120167844 | CYLINDER BLOCK - A cylinder block is provided. The cylinder block includes a cylinder, two crankshaft supports at a bottom of the cylinder block, a cylinder head engaging surface at a top of the cylinder block, and first and second exterior sidewalls, the first exterior sidewall extending from the cylinder head engaging surface to a first structural frame engaging surface positioned above a centerline of the two crankshaft supports. | 07-05-2012 |
| 20120210957 | VARIABLE COMPRESSION RATIO V-TYPE INTERNAL COMBUSTION ENGINE - The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder block | 08-23-2012 |
| 20120234270 | ENGINE ASSEMBLY INCLUDING CRANKSHAFT FOR V4 ARRANGEMENT - An engine assembly may include an engine structure and a crankshaft. The engine structure may include an engine block defining a first bank of cylinders defining two cylinders and a second bank of cylinders defining two cylinders forming a V4 arrangement. The crankshaft may include a first crank pin, a second crank pin, a third crank pin and a fourth crank. The fourth crank pin may be rotationally offset from the first crank pin by a first angle of less than two hundred and seventy degrees in the rotational direction of the crankshaft. The second and third crank pins may be located rotationally between the first crank pin and the fourth crank pin in the rotational direction. | 09-20-2012 |
| 20120266831 | V-type block of a crank circular slider mechanism and a cylinder liner, a group of the cylinder liner, mechanical equipment thereof - A V-type block of a crank circular slider mechanism, comprising a piston with a circular slider receiving hole and a circular slider received in the receiving hole, the block having a main journal hole and comprising a group of adjacent cylinders arranged in a V form intersecting in the position of the main journal hole , each of the cylinders in the group penetrating the main journal hole, wherein said cylinders each penetrate the main journal hole with an axial length beyond the main journal hole, which the length is long enough for providing a reciprocating range required for the reciprocating motion of the part of the piston located beneath the receiving hole of the circular slider. | 10-25-2012 |
| 20150128886 | OIL PASSAGE STRUCTURE OF DRY SUMP ENGINE AND OIL PASSAGE STRUCTURE OF V-SHAPED DRY SUMP ENGINE - An oil passage structure of a dry sump engine includes an oil recovery passage, at least one first communicating hole, and a first oil suction passage. The oil recovery passage extends in a direction in which a cylinder bank extends and is disposed so that at least part of the oil recovery passage is located outward of an external lower end portion of a valve gear chamber of a cylinder head along a junction between a side wall portion of the cylinder head and a bottom surface of the valve gear chamber in a state where the dry sump engine is mounted on a vehicle in an inclined manner. The at least one first communicating hole is provided in the side wall portion so as to connect the valve gear chamber of the cylinder head and the oil recovery passage. | 05-14-2015 |
| 20160146073 | VARIABLE VALVE GEAR - A variable valve gear for adjusting inlet or exhaust valves of at least two cylinder banks of an internal combustion engine comprising
| 05-26-2016 |
| 123540600 | Six cylinder | 1 |
| 123540700 | Eight cylinder | 1 |
| 20120210958 | ENGINE ASSEMBLY INCLUDING CRANKSHAFT FOR V8 ARRANGEMENT - A crankshaft for a V8 engine includes first, second, third, fourth, fifth, sixth, seventh and eighth crank pins defined on the crankshaft. The second crank pin is rotationally offset from the first crank pin, the third crank pin is rotationally offset from the first and second crank pins, the fourth crank pin is rotationally offset from the first, second and third crank pins, the fifth crank pin is rotationally offset from the first, second, third and fourth crank pins, and the sixth pin is rotationally offset from the first, second, third, fourth and fifth crank pins. The seventh crank pin is rotationally aligned with the first crank pin and the eighth crank pin is rotationally aligned with the second crank pin. | 08-23-2012 |
| 123550100 | Semi-radial | 1 |
| 20160097322 | Reciprocating Piston Internal Combustion Engine - A reciprocating piston internal combustion engine includes at least one first, one second and one third cylinder and has a crank mechanism having a crankshaft, which is rotatably mounted in a crankcase, having a first, a second and a third crankpin. A first connecting rod having a first piston for the first cylinder is allocated to the first crankpin. A second connecting rod having a second piston for the second cylinder is allocated to the second crankpin. A third connecting rod having a third piston for the third cylinder is allocated to the third crankpin. The crankpins are arranged successively in an axial direction of the crankshaft, wherein the cylinders are arranged in a fan shape. | 04-07-2016 |
| 123550200 | Cylinders opposite | 9 |
| 20090139476 | INTERNAL COMBUSTION ENGINE - A two-stroke internal combustion engine is disclosed having opposed cylinders, each cylinder having a pair of opposed pistons, with all the pistons connected to a common central crankshaft. The inboard pistons of each cylinder are connected to the crankshaft with pushrods and the outboard pistons are connected to the crankshaft with pullrods. Each opposed cylinder further comprises an integrated scavenge pump for providing positive intake pressure. This configuration results in a compact engine with a very low profile, in which the free mass forces can be substantially balanced. The engine configuration also allows for asymmetrical timing of the intake and exhaust ports through angular positioning of the journals on the crankshaft. | 06-04-2009 |
| 20090272343 | Drive Unit with an Internal Combustion Engine and a Reciprocating Piston Engine which is Self-Starting without Regulation - A drive unit and a method for the operation thereof. The drive unit has an internal combustion engine in operative connection with a driven shaft and a reciprocating piston expansion engine in an operative connection with a crankshaft. The driven shaft is mechanically connected to the crankshaft by a clutch in such a way that torque is transmitted from the crankshaft to the driveshaft. The reciprocating piston expansion engine has at least one cylinder, and a fluid is guided from a fluid supply into an interior of the at least one cylinder at least occasionally via an inlet valve and a bypass valve which is arranged in parallel with the inlet valve. | 11-05-2009 |
| 20090314232 | OPPOSED PISTON COMBUSTION ENGINE - An engine comprising: a shaft ( | 12-24-2009 |
| 20110162599 | COUNTERPOISE ENGINE - Methods and systems may include an engine having a crankshaft with a longitudinal axis and a plurality of pistons coupled to the crankshaft. The engine may also include a bore structure having surfaces that define a plurality of combustion chambers, wherein each combustion chamber contains a piston and the bore structure rotates about the longitudinal axis in response to piston displacement within the combustion chambers. | 07-07-2011 |
| 20120067308 | Internal combustion engine , improvements in design and Efficiency - (c) This invention relates to the converting of linear combustion force into rotational force within an internal combustion engine. Most internal combustion engines have a crankshaft, but due to the rotational friction loss and combustion force on a crankshaft at TDC, the current engine configuration has limited efficiency. The current engine takes the full thrust of combustion at TDC whilst trying to rotate a crankshaft. A further disadvantage, is the pistons exert piston slap on both sides of the cylinder bore. The crankshaft also causes friction loss from indirect alignment of the connecting rods. | 03-22-2012 |
| 20120085302 | VARIABLE COMPRESSION RATIO SYSTEMS FOR OPPOSED-PISTON AND OTHER INTERNAL COMBUSTION ENGINES, AND RELATED METHODS OF MANUFACTURE AND USE - Various embodiments of methods and systems for varying the compression ratio in opposed-piston engines are disclosed herein. In one embodiment, an opposed-piston engine can include a first phaser operably coupled to a first crankshaft and a second phaser operably coupled to a corresponding second crankshaft. The phase angle between the crankshafts can be changed to reduce or increase the compression ratio in the corresponding combustion chamber to optimize or at least improve engine performance under a given set of operating conditions. | 04-12-2012 |
| 20140196675 | CRANKDISK BEARING SUPPORT FOR THE WAISSI 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 piston is transmitted to the driveshaft by a rotating crankdisk, which is off-centered mounted to the driveshaft. The high friction metal to metal contact between the crankdisk and the piston contact wall is replaced by a combination of a roll resistance and friction under hydrodynamic conditions resulting to a significantly reduced total resistance between the piston and the crankdisk. This is accomplished by utilizing a bearing ring assembly slidably installed on the annular perimeter surface of the crankdisk. The bearing ring is held in place by a linear U-profile groove, which is casted or machined on each the piston contact slot wall of the integrated piston assembly respectively. | 07-17-2014 |
| 123550300 | Cam on rotary output shaft | 1 |
| 20140318483 | ENGINE - An internal combustion engine includes a shaft and a multilobate central cam fixed to the shaft, the central cam having at least three lobes which define a central cam surface. There is at least one cylinder module, each cylinder module including a pair of cylinders. The cylinders are diametrically opposed with respect to the shaft with the central cam interposed therebetween. There is a piston in each cylinder, each piston including an associated engagement device for engaging the central cam surface and a connecting member connecting the pistons. The connecting member has an internal space through which the central cam extends. The reciprocating motion of the pistons in the cylinders in use imparts rotary motion to the shaft via engagement of the engagement device of the pistons with the central cam surface of the central cam. | 10-30-2014 |
| 123550400 | Four-stroke cycle | 1 |
| 123550500 | Cylinders opposite and aligned | 1 |
| 20090038565 | Continuous Otto piston elliptical engine - A continuous Otto piston elliptical engine including cylinder and ellipse, where the cylinder includes:
| 02-12-2009 |
