Abstract: A rocker arm includes an outer arm having a first wall and a second wall and an inner arm which selectively pivots relative to the outer arm about a pivot shaft axis based on positioning of a lock pin. A lost motion spring includes an outer arm tang grounded to the outer arm and an inner arm tang grounded to the inner arm. A roller shaft is supported by the inner arm and extends toward the first wall. The roller shaft carries a roller which follows a camshaft. A roller retainer is carried by the roller shaft and is located between the roller and the first wall and includes a surface with which the inner arm tang is engaged to ground the lost motion spring to the inner arm through the roller shaft.

Abstract: A rocker arm includes an outer arm having a first wall and a second wall and an inner arm which selectively pivots relative to the outer arm about a pivot shaft axis of a pivot shaft based on positioning of a lock pin. A lost motion spring includes an outer arm tang grounded to the outer arm and an inner arm tang grounded to the inner arm. A roller shaft is supported by the inner arm and extends toward the first wall. The roller shaft carries a roller which follows a camshaft. A roller retainer is carried by the roller shaft and is located between the roller and the first wall and includes a surface with which the inner arm tang is engaged to ground the lost motion spring to the inner arm, a roller shaft aperture containing the roller shaft, and a pivot shaft aperture containing the pivot shaft.

Abstract: An internal combustion engine is disclosed and includes a main cylinder and main piston that are relatively axially displaceable along a main axis to define a variable volume main working chamber. At least one valve is configured to admit air and fuel into the working chamber forming an air/fuel mixture. The main cylinder is configured to cause the air/fuel mixture in the main cylinder to spin rapidly enough to cause a substantive change in the heat capacity of the air/fuel mixture creating a spinning air/fuel mixture. The main cylinder and main piston are configured to compress the spinning air/fuel mixture to create an ignitable spinning air/fuel mixture. The spinning air/fuel mixture is ignited and the main cylinder and main piston are configured to extract mechanical energy from the ignited spinning air/fuel mixture. An exhaust valve is configured to exhaust combustion products from the main working chamber.

Abstract: A six-stroke engine includes a cylinder, a piston, a cylinder head, a combustion chamber, an intake port, an exhaust port, an intake valve, an exhaust valve, a fuel injector, and an ignition plug. The six-stroke engine includes a valve gear that operates the intake valve and the exhaust valve to execute an intake stroke, a compression stroke with ignition, an expansion stroke with combustion, an exhaust stroke, an expansion stroke without combustion, and a compression stroke without ignition. The valve gear opens, only for a predetermined period of time while the piston is located at top dead center, at least one of the intake valve and the exhaust valve within a period from the exhaust stroke to the intake stroke. A valve overlap state is produced at least once within the period from the exhaust stroke to the intake stroke.

Abstract: A single-shaft dual expansion internal combustion engine includes an engine block, a cylinder head, a single crankshaft, a control shaft and first, second and third multi-link connecting rod assemblies. First and second power cylinders and an expander cylinder are formed in the engine block. First and second power pistons are moveable in the first and second power cylinders and are connected to respective first and second crankpins of the crankshaft. An expander piston is moveable in the expander cylinder and is connected to a third crankpin of the crankshaft. First and second multi-link connecting rod assemblies are coupled to first and second swing arms of the control shaft. A third multi-link connecting rod assembly is coupled to a third swing arm of the control shaft.

Abstract: An action reaction combustion engine comprising of one or more engines with one or more pistons having adequate mass being housed in mated cylinders and having two opposing heads also having valving plumbing fuel delivery and starting means and allowed to reciprocate on linear bearings delivering a workforce on each end of back and fourth stroke one force when the pistons compresses and stops and one force when fuel ignites or high pressure air pushes and drives the piston back producing four power events every one complete reciprocating cycle or revolution of the crank or other drive mechanism.

Abstract: An engine combustion cylinder is fluidly connectable to an intake system through an intake valve and to an exhaust system through an exhaust valve. A valve activation system is to activate the intake valve and the exhaust valve. The valve activation system is responsive to a controller providing command signals to the valve activation system such that, when the engine operates in a six-stroke combustion cycle, the intake valve is opened during a recompression stroke to allow a portion of the products from the first combustion stroke to exit the combustion cylinder and enter into the intake system.

Abstract: A dual-crankshaft engine is presented. In one embodiment, the engine includes a first crankshaft and a second crankshaft. The second crankshaft is coupled with the first crankshaft such that the first crankshaft and the second crankshaft are horizontally coplanar. The engine further includes a first piston that is operable to reciprocate in a first horizontal cylinder via coupling with the first crankshaft, and a second piston that is operable to reciprocate in a second horizontal cylinder via coupling with the second crankshaft. The second horizontal cylinder is horizontally collinear with and opposing the first horizontal cylinder.

Abstract: An assembly is provided herein. The assembly includes a cylinder block and a cooler coupled to the cylinder block positioned in a valley between two cylinder banks, the cooler including a lubricant passage having a first section configured to flow lubricant in an opposing direction to the flow of lubricant through a second section, the first and second sections each extending longitudinally from a first peripheral cylinder to a second peripheral cylinder in one of the cylinder banks.

Abstract: A secondary injector that is one of a plurality of injectors provided for each cylinder is arranged in an air cleaner and above an air funnel, an air cleaner bottom plate that has a passage hole for forming an intake passage is fastened and fixed to an upper surface of a throttle body, and the air funnel and a pipe support post for a secondary delivery pipe are fastened and fixed to the air cleaner bottom plate.

Abstract: A structural frame is provided. The structural frame includes a bottom surface, first and second cylinder block sidewall engaging surfaces, the first and second cylinder block sidewall engaging surfaces positioned above the bottom surface at a height that is above a centerline of a crankshaft support included in a cylinder block when the structural frame is coupled to the cylinder block.

Abstract: In one exemplary embodiment of the invention, an internal combustion engine includes a first set of cylinders in a first bank of the internal combustion engine and a second set of cylinders in a second bank of the internal combustion engine. The engine also includes a flat-plane crankshaft coupled to the first set of cylinders and the second set of cylinders. The pressure in the deactivated cylinders is controlled by gas injections and the bank angle between the first bank and second bank that is adjusted from a 90 degree bank angle by a selected angle to reduce an amplitude of second order torque variations when the internal combustion engine is operating in a fuel saving mode.

Abstract: 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.

Abstract: An system is disclosed for use with an engine. The system may have an intake manifold configured to direct air into combustion chambers of the engine, and an exhaust manifold configured to direct exhaust from the combustion chambers to the atmosphere. The system may also have at least one conduit extending from a first of the combustion chambers to a second of the combustion chambers, and at least one valve associated with the at least one conduit. The at least one valve is configured to pass fluid from the first of the combustion chamber to the second of the combustion chambers during a compression stroke of a first piston within the first of the combustion chambers and during an expansion stroke of a second piston within the second of the combustion chambers.

Abstract: A balancing system configured to be applied to an inline-four internal combustion engine is disclosed. The balancing system comprises counter rotating eccentric masses (22, 23, 24, 25) projecting from the opposite side of a support (21). The support (21) is placed centrally under the driving shaft, being fixed by screws to the wall of the engine.

Abstract: An engine includes an engine structure defining a plurality of cylinders. A crankshaft is rotatably mounted to the engine structure and a plurality of pistons are each disposed in a corresponding one of the plurality of cylinders and drivingly connected to the crankshaft. A drive pulley is drivingly connected to the crankshaft. An accessory is mounted to the engine structure and includes a driven pulley connected to the drive pulley by a belt. The belt has a load direction extending through an axis of rotation of the drive pulley and the driven pulley. The accessory includes a housing having two slots extending generally parallel to the load direction of the belt and each receiving a fastener therein. A tensioner bolt is located between the two slots and extends generally parallel to the load direction to apply a tension force on the housing in the load direction.

Abstract: Methods, systems, and devices are disclosed that generally involve split-cycle engines in which a combustion event is initiated in a crossover passage that interconnects a compression cylinder and an expansion cylinder of the split-cycle engine. In one embodiment, the compression piston leads the expansion piston by a phase shift angle so that, for example, a substantial amount of the combustion event can occur in the crossover passage at a constant volume.

Abstract: An engine assembly includes an engine block defining a first cylinder bore, a second cylinder bore directly adjacent to the first cylinder bore and a third cylinder bore directly adjacent to the second cylinder bore. The engine block defines a first distance from a diametrical center of the first cylinder bore to a diametrical center of the second cylinder bore and defines a second distance from the diametrical center of the second cylinder bore to a diametrical center of the third cylinder bore. The first distance is different than the second distance.

Abstract: An engine has a stationary first body portion with one or more surfaces that define a portion of a fluid flow path through the engine. The stationary first body portion has a substantially cylindrical outer surface. A first piston assembly is configured to reciprocate relative to the stationary first body portion and to accommodate one or more second piston assemblies reciprocating inside and relative to the first piston assembly. The first piston assembly has an extension portion. The extension portion has a substantially cylindrical inner surface that defines a space to receive the stationary first body portion. One or more sealing elements are between the substantially cylindrical outer surface of the stationary first body portion and the extension portion of the first piston assembly.

Abstract: An opposed-piston, opposed-cylinder OPOC engine is disclosed in which the central axis of the two cylinders is collinear. In four-stroke engines, this is possible with a built up crankshaft. Disclosed are connecting rod configurations that are suitable for a two-stroke engine that can be assembled to a unitary crankshaft, including both pullrods in tension and pushrods in compression. The configuration includes pistons arranged symmetrically, but with offset timing of the intake and exhaust pistons. The offset timing leads to a slight imbalance which can be partially overcome by having the center of gravity of the crankshaft offset from the axis of rotation.

Abstract: A crankshaft includes a coupling portion, a first functional portion, and a second functional portion. The coupling portion is coupled to a connecting rod. The first functional portion is provided on an upper portion of the crankshaft protruding from a crankcase. The first functional portion drives a first functional component. The second functional portion is provided on a lower portion of the crankshaft protruding from the crankcase. The second functional portion drives a second functional component. The entire crankshaft has been processed by a first treatment to at least enhance the corrosion resistance thereof. At least a coupling portion of the crankshaft has been processed by a second treatment to at least enhance the strength thereof. Neither of the first functional portion and the second functional portion has been processed by the second treatment.

Abstract: An Otto cycle, Atkinson cycle or supercharged internal combustion engine (10) and a timing mechanism therefor. The engine comprising: a cylinder (14) and a piston (12) reciprocally mounted within the cylinder (14) in which reciprocating movement of the piston is converted into rotational movement of an output shaft (28) by way of rollers (20, 24) engaging primary (22) and secondary (26) cam means which are affixed to, and rotatable with, the output shaft (28). The timing mechanism comprising cam means (52, 53) mounted on, and rotatable in unison with, the output shaft (28), a cam follower (54, 55) arranged to engage the cam means (52) and a linkage connecting the cam follower to a pivoting rocker arm for actuating the engine's induction and exhaust valves, the rocker arm pivot being adapted to be moveable on an arcuate locus centered on the axis of the output shaft (28).

Abstract: An engine includes an engine casing and a first piston configured to reciprocate relative to the engine casing. The first piston has a wall that defines a substantially cylindrical chamber. One or more second pistons are configured to reciprocate inside the substantially cylindrical chamber. A combustion chamber intake port and a combustion chamber exhaust port extend through the wall. A shutter is outside the wall and is movable between a first position substantially blocking fluid flow through the combustion chamber exhaust port but not blocking fluid flow through the combustion chamber intake port and a second position substantially blocking fluid flow through the combustion chamber intake port but not blocking flow through the combustion chamber exhaust port. An actuator causes the shutter to move between the first position and the second position in response to the first piston reciprocating relative to the engine casing.

Abstract: A W6 engine has two W3 engine units disposed juxtaposed on a common crankshaft. Exhaust pipes of the cylinders containing the pistons driving the common crankshaft are guided to an exhaust. Each cylinder has at least one intake valve and at least one exhaust valve. The intake valves for the individual cylinders are disposed in wall portions of the respective cylinders oriented in the same circumferential direction about the crankshaft or lateral portions of their cylinder head. The exhaust valves for the individual cylinders are disposed in opposite circumferential direction. Each exhaust valve closes an exhaust pipe, which is led from the valve seat of the exhaust valve to the outer surface of the W3 engine unit in which the cylinder with the exhaust valve is disposed.

Abstract: A sealed t-joint includes a first component having a first sealing surface, a second component having a second sealing surface, and a third component including a channel characterized by a channel height, channel width, and a channel depth. The t-joint also includes a gasket having a thickness and a protrusion characterized by a protrusion height, a protrusion width, and a protrusion depth. The protrusion height is less than the channel height, the protrusion width is less than channel width, and the protrusion depth is less than the channel depth. The t-joint additionally includes a polymer sealant. The gasket is compressed between the first and second sealing surfaces to generate a first and second component sub-assembly. Additionally, the polymer sealant is applied into the channel. The third component is subsequently assembled with the first and second component sub-assembly such that the protrusion extends into the channel to seal the t-joint.

Abstract: A combustible fluid-operated orbital engine having sets of cooperating cylinder and piston members with respective parallel axes of rotation. Respective cylinder and piston carrier wheels with respective axes of rotation parallel to the piston/cylinder axes of rotation carrying the pistons/cylinders circularly and orbitally and at all times in opposed relation on a common longitudinal axis along intersecting counter paths. Respective gearing structures or belts/sprockets supported by the cylinder and piston carrier wheels rotate the pistons/cylinders counter to their circular motion direction to maintain their opposed relation for their periodic interfittment when their respective paths intersect. A combustible fluid supply is provided to the cylinder member for combustion coincident with the periodic interfittment in engine operating relation. The pistons/cylinders may include ceramic material. The compression sealing system is located in the entry of each cylinder rather than being connected to the piston.

Abstract: A W6 engine has two W3 engine units disposed juxtaposed on a common crankshaft. Exhaust pipes of the cylinders containing the pistons driving the common crankshaft are guided to an exhaust. Each cylinder has at least one intake valve and at least one exhaust valve. The intake valves for the individual cylinders are disposed in wall portions of the respective cylinders oriented in the same circumferential direction about the crankshaft or lateral portions of their cylinder head. The exhaust valves for the individual cylinders are disposed in opposite circumferential direction. Each exhaust valve closes an exhaust pipe, which is led from the valve seat of the exhaust valve to the outer surface of the W3 engine unit in which the cylinder with the exhaust valve is disposed.

Abstract: An system is disclosed for use with an engine. The system may have an intake manifold configured to direct air into combustion chambers of the engine, and an exhaust manifold configured to direct exhaust from the combustion chambers to the atmosphere. The system may also have at least one conduit extending from a first of the combustion chambers to a second of the combustion chambers, and at least one valve associated with the at least one conduit. The at least one valve is configured to pass fluid from the first of the combustion chamber to the second of the combustion chambers during a compression stroke of a first piston within the first of the combustion chambers and during an expansion stroke of a second piston within the second of the combustion chambers.

Abstract: An engine with an output shaft extending through the engine block and generally parallel to the piston, the engine includes a boost piston cylinder integral to the cylinder, and a boost piston for producing compressed air so as to supercharge the engine. The engine further includes an energy translation mechanism translating linear movement into rotary movement, an energy translation mechanism for reducing the side force that the piston exerts against the inner wall of the combustion chamber, an energy transforming member working in concert with an engine torque absorbing/motion control torque reaction device to eliminate the lemniscate motion from being translated to the piston and to absorb all engine torque to case ground through a rolling element bearing, and a port time control system having a shaft phaser to adjust the phase of the pistons or the position of the air control valve.

Abstract: The disclosed invention includes a heat engine where combustion, expansion, and compression are independent, continuous, parallel cycles. Compression and expansion ratios are continuously controllable variables. The disclosed engine includes a crankcase situated between two axially-aligned, opposed cylinder blocks. Each opposed cylinder block contains four zero-clearance cylinders. An oscillating piston head separates each cylinder into external expansion and internal compression chambers. A single connecting rod rigidly connects the piston heads of opposed cylinder pairs, and articulates with a central, linear-throw, planetary crank mechanism. A single, rotary disk valve mates with each external expander face of the paired, opposed cylinder blocks and regulate all expansion and exhaust functions. Controllable intake and outlet valves, integrated within each internal compressor face of the paired, opposed cylinder blocks and regulates intake, compression, and regenerative engine braking functions.

Abstract: The present invention relates to a combustion engine system having a balance arm, first and second sets of opposed combustion cylinders, and a set of opposed worked devices. The balance arm has a pivot point, and is configured so that an exploitable energy is taken from a kinetic energy of the balance arm. The first set of working combustion cylinders being interconnected by a common first piston rod that is connected to the balance arm. The second set of working combustion cylinders being interconnected by a common second piston rod that is connected to the balance arm so that the pivot point is between the first and second piston rods. The worked devices are interconnected by a common worked piston rod that is connected to the balance arm so that the worked devices are between the first and second sets of combustion cylinders.

Abstract: 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°.

Abstract: The horizontally opposed center fired engine improves on the traditional design of the horizontally opposed engines and center fired engines with a better engine geometry. The present invention utilizes four pairs of opposing pistons to compress a larger volume of air-fuel mixture within four different cylinders. The four different cylinders are radially positioned around a center axle in order to achieve a perfectly symmetric engine geometry. The center axle consists of two different shafts spinning in two different directions, which could drastically reduce engine vibrations in the present invention. Engine vibrations are caused by a change in engine speed and result in a loss of energy. Due to the design, the present invention will only experience energy loss in the form of entropy and friction. Thus, the present invention can convert a higher percentage of chemical energy into mechanical energy than any other internal combustion engine.

Abstract: A heat engine employs an auxiliary cylinder to receiving exhaust gases from a main cylinder during its exhaust phase to extract mechanical energy from the heat in the exhaust gases. The auxiliary cylinder has an auxiliary piston that reciprocates with an asymmetric pattern in respect to the main crank a counter-rotating auxiliary cranks such that the downward stroke of the auxiliary piston and the upward stroke of the auxiliary piston correspond to crank angles above and below 180 degrees. In one favorable embodiment, fresh air can be drawn in and combined with the exhaust gases.

Abstract: An internal combustion engine has at least one cylinder, and a means for varying the compression ratio in the cylinder. The at least one cylinder has two oppositely directed reciprocatingly movable pistons in it, which are each connected via a piston rod with a corresponding arm, whereby each arm shows an opening in which a main shaft that connects the two arms is rotatably supported in bearings. The main shaft includes an angle with a center line of each opening. The means for varying the compression ratio in the cylinder includes a division in the main shaft, as well as drive means in order to move the parts formed by it of the main shaft apart from each other.

Abstract: Methods and apparatus for modifying an internal combustion engine for radical ignition combustion to aid ignition and enhance combustion. In one embodiment, the present invention includes a method of modifying an internal combustion engine with at least one cylinder to control the production and flow of radical ignition species. An exemplary method comprises inserting a cylinder liner into the at least one cylinder, the cylinder liner comprising at least one radical production member for providing and storing radical ignition species. The cylinder liner has a lip section and at least one production member is disposed inside of the lip section. The cylinder liner also has at least one vent to fluidly connect each of the at least one production member to each of at least one lined cylinder in an engine block. The method further comprises attaching the cylinder liner and at least one production member to the engine block.

Abstract: A combustible fluid operated orbital engine has plural sets of cooperating cylinder and piston members with respective parallel axes of rotation, respective cylinder and piston carrier wheels with respective axes of rotation parallel to the members' axes of rotation carrying said members circularly and orbitally and at all times in opposed relation on a common longitudinal axis along intersecting counter paths. Respective gearing structures supported by the cylinder and piston carrier wheels rotate the members counter to their circular motion direction to maintain their opposed relation for their periodic interfittment when their respective paths intersect. A combustible fluid supply is provided to the cylinder member for combustion coincident with the periodic interfittment in engine operating relation. The common longitudinal axes of the cylinder/piston sets are at all times parallel with each other.

Abstract: A heat engine employs an auxiliary cylinder to receiving exhaust gases from a main cylinder during its exhaust phase to extract mechanical energy from the heat in the exhaust gases. The auxiliary cylinder has an auxiliary piston that reciprocates with an asymmetric pattern in respect to the main crank a counter-rotating auxiliary cranks such that the downward stroke of the auxiliary piston and the upward stroke of the auxiliary piston correspond to crank angles above and below 180 degrees. In one favorable embodiment, fresh air can be drawn in and combined with the exhaust gases.

Abstract: A multicylinder engine for a motorcycle includes a valve actuation mechanism having a hydraulically-operated valve pausing mechanism for holding at least one of an intake valve and an exhaust valve of selected cylinders in a suspended state. The valve actuation mechanism operates the intake valve and the exhaust valve, and controls flow of oil through an oil passage which introduces working oil to the valve pausing mechanism from a hydraulic-pressure control device. Air-bleeding holes are formed in the cylinder head. The air-bleeding holes are fluidly connected with portions of the oil passages that are located at a highest level in the oil passages while the motorcycle is parked in an inclined state with its side stand down.

Abstract: 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.

Abstract: 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.

Abstract: The Mass Driven Motor with a Middle Signaling Piston is an internal combustion, two cycle free flowing piston motor that develops a linear-straight line force by the use of four cylinders and six pistons to accelerate a mass. The force is developed when the mass that lies in the horizontal position is accelerated and stopped and reaccelerated. The force developed is linear-straight line in nature. The force can be harnessed by simple-mere attachment and directed by the positioning of the vertical pistons, in other words-as the horns on a bull, which ever way the horns are pointing, that is the way its going. This allows the user to go in any direction he desires by aligning the vertical piston in that direction.

Abstract: Combustion engine comprising interconnected combustion cylinders (1, 2, 3, 4), comprising at least two sets of each two opposed working combustion cylinders (1, 2, 3, 4), said two cylinders of each set being interconnected by a common piston rod (5, 6), said two piston rods (5, 6) being connected by one balance arm (7), and the exploitable energy is taken from the kinetic energy of said balance arm (7).

Abstract: A crankcase (1, 1?) cast in one piece for a multi-cylinder engine (16), particularly for a multi-cylinder diesel engine, comprising a holder (2) for a horizontally extending crankshaft and a plurality of cylinder bores (3), the crankcase on the bottom thereof comprising a completely peripheral, uninterrupted flange (5, 5?) for attaching an oil pan (17), is characterized in that the crankcase (1, 1?) is fully enclosed on the control side (7) thereof opposite the flywheel side, with the exception of a bore (8) for receiving an end of the crankshaft, wherein the diameter of the bore (8) is dimensioned such that the crankshaft can be introduced through the opening surrounded by the flange (5, 51) into the bore (8) in an inclined position when mounting the engine and can then be positioned within the bearing blocks (13) in the horizontal position.

Abstract: Systems, processes, devices, and articles of manufacture for mechanical power generation may be implemented by various techniques. In certain implementations, a mechanical power generator may include a number of cylinders that each have at least two combustion chambers with interconnected pistons. The power generator may also include a fuel controller and an exhaust controller for each combustion chamber. A number of force conversion members may each be associated with respective ones of the cylinders by being coupled to a piston in the associated cylinder at one end. A torque conveying member may be coupled to another end of the force conversion members.

Abstract: A rocking mechanism, through which linear reciprocating movement of a piston in a cylinder of an internal combustion engine can be transferred, from the remote end of a con rod on which the piston is mounted to a crankshaft, includes an oscillating device and a mounting device by which the oscillating device is mountable on a crankcase of the engine for reversible oscillating movement of the oscillating device on a first axis parallel to the crankshaft axis. The oscillating device is adapted for pivotally connecting to the little end of a further con rod having a big end connectable to the crankshaft for relative rotation, between the rocking mechanism and the further con rod, on a second axis offset from and parallel to the first axis.

Abstract: A combustible fluid operated engine free of lost momentum during piston reciprocation has respective series of cylinders and pistons on counter-rotating carrier wheels. Fuel is injected into the cylinders from the pistons. The carrier wheels are variably spaced relatively to vary the combustible fuel compression. The power output is variable.

Abstract: A modular family of internal combustion engines is described. The family includes at least two engine configurations selected from a single cylinder, V-type, inline, opposed, W-type, and radial configurations. Each of the engines in the family includes at least one cylinder with identical top end packages. A method for designing such a family of engines is also disclosed.

Abstract: A six-cylinder engine includes a stop-cylinder-setting section. The stop-cylinder-setting section sets to-be-stopped cylinders such that cylinders operated in a four-cylinder operation mode (two cylinders stopped) are stopped in a two-cylinder operation mode (four cylinders stopped), and the cylinders operated in the two-cylinder operation mode are stopped in the four-cylinder operation mode. The stop-cylinder-setting section stops operations of intake valves corresponding to stopped cylinders in each operation mode.

Abstract: An internal combustion engine includes first and second cylinder assemblies each to repeatedly carry out a combustion cycle including intake, compression, combustion, and exhaust processes. In a surcharging system of the invention, the first cylinder assembly is coupled to the second cylinder assembly in gaseous communication to apply a charge of exhaust gas produced from a first combustion cycle of the first cylinder assembly to a compression process of a second combustion cycle of the second cylinder assembly. In a supraignition system of the invention, the first cylinder assembly is coupled to the second cylinder assembly in gaseous communication to apply a charge of ignition gas produced from a first combustion cycle of the first cylinder assembly to a compression process of a second combustion cycle of the second cylinder assembly. Buffer vessels coupled in gaseous communication with corresponding cylinder assemblies are also used in surcharging and supraignition processes.