Abstract: A positive displacement injector pump for use in the oil and gas industry includes friction reducing roller bearing and head assemblies. The roller bearing assembly is provided to reduce friction in the operation of one or more fluid delivery injector heads and utilizes a motor driving a crosshead and power hub. The power hub has a hub cam follower roller bearing with at least three peripheral perpendicular mounted rolling bearings. A cross head communicates with the hub cam follower roller bearing and is adapted to reciprocate the head assembly to drive the plunger of the injector pump with a guide rod.

Abstract: A crank circular slider mechanism includes a crankshaft having at least one crank pin; at least one circular slider with an eccentric hole which fits over the crank pin; at least one reciprocating element with a circular slider-receiving hole, which receives the circular slider in a rotatable manner; and at least one dynamic balance rotary block with an eccentric hole that fits over the crank pin. The dynamic balance rotary block and the adjacent circular slider are fixed together. By means of proper selection of a mounting place and a mass of the dynamic balance rotary block, the mechanism can convert reciprocating inertia of the reciprocating element into rotation inertia so as to obtain a balancing effect. An internal combustion engine and a compressor may be equipped with the crank circular slider mechanism.

Abstract: An apparatus for rotating a crankshaft is described. The crankshaft includes a main shaft and an axially offset crank pin connected to the main shaft. The apparatus includes a first piston that alternately drives an attached connecting frame in reciprocating motion. A hub is rotatably mounted within the connecting frame with the hub defining a channel and the crank pin disposed therein. The apparatus includes a locking mechanism with a locked state in which the hub is prevented from rotating and an unlocked state in which the hub freely rotates. The reciprocating motion of the first piston and the connecting frame imparts reciprocating travel of the crank pin between ends of the channel and consequent rotation of the main shaft in the locked state; while the crankshaft and the hub rotate freely in the unlocked state, with the first piston and the connecting frame in a stationary position.

Abstract: A split-cycle air-hybrid engine includes a rotatable crankshaft. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft. An exhaust valve selectively controls gas flow out of the expansion cylinder. A crossover passage interconnects the compression and expansion cylinders. The crossover passage includes a crossover compression (XovrC) valve and a crossover expansion (XovrE) valve therein. An air reservoir is operatively connected to the crossover passage. An air reservoir valve selectively controls air flow into and out of the air reservoir. In an Air Compressor (AC) mode of the engine, the XovrE valve is kept closed during an entire rotation of the crankshaft, and the exhaust valve is kept open for at least 240 CA degrees of the same rotation of the crankshaft.

Abstract: In an opposed piston, compression ignition engine two crankshafts are single-side mounted with respect to a row of cylinders, which is to say that the crankshafts are mounted so that their axes of rotation lie in a plane that is spaced apart from and parallel to a plane in which the axes of the cylinders lie. Each piston of the engine is coupled to one of the crankshafts by a single linkage guided by a crosshead. The piston has a piston rod affixed at one end to the piston. The other end of the piston rod is affixed to the crosshead pin. One end of a connecting rod swings on the pin and the other end is coupled to a throw on a crankshaft. Each crosshead is constrained to reciprocate between fixed guides, in alignment with the piston rod to which it is coupled.

Abstract: In an opposed piston, compression ignition engine two crankshafts are single-side mounted with respect to a row of cylinders, which is to say that the crankshafts are mounted so that their axes of rotation lie in a plane that is spaced apart from and parallel to a plane in which the axes of the cylinders lie. Each piston of the engine is coupled to one of the crankshafts by a single linkage guided by a crosshead. The piston has a piston rod affixed at one end to the piston. The other end of the piston rod is affixed to the crosshead pin. One end of a connecting rod swings on the pin and the other end is coupled to a throw on a crankshaft. Each crosshead is constrained to reciprocate between fixed guides, in alignment with the piston rod to which it is coupled.

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 barrel internal combustion engine includes a plurality of pistons, a drive shaft, a cam plate and an oil pump. The plurality of pistons is slidably coupled to a plurality of cylinders for reciprocal movement along axes generally parallel with a central axis. The drive shaft is rotatable about the central axis. The cam plate is coupled to the drive shaft for rotation therewith. The cam plate is operatively coupled to the pistons to cause rotation of the drive shaft about the central axis in response to the reciprocal movement of the pistons. The oil pump has a rotatable input member coupled coaxially with the drive shaft for rotation therewith about the central axis for actuating the oil pump. The oil pump may be provided in the form of a geroter.

Abstract: A continuous Otto piston elliptical engine including cylinder and ellipse, where the cylinder includes: i. an X shape layout of the common Otto cycle pistons in a single block, ii. a coolant inlet port and a coolant outlet port (Part Nos. 42 and 43, FIG. 3), iii. where lubrication of pistons is done by the lubricating liquid splashed by the connecting arms, guide arm and the up down movement of the pistons themselves (Part No. 29, FIG. 2), iv. conventional spark plugs are placed in the cylinder (Part No. 36, FIG. 2), v. there is a contact between the guiding arm and the connecting rod which make an arc trace which force the ellipse to rotate (Part No. 29, FIGS. 2), and vi. the holes the sparkplug cables pass through (Part No. 32, FIG. 2).

Abstract: A reciprocating internal combustion engine has an engine block (100) with at least one pair of coaxially aligned cylinders (30L and 30R) in which a dual-headed piston body reciprocates. Two rack gears (27 and 28) are mounted within a central frame structure (40) of the piston body and mesh with two pinion gears (29a and 29b, respectively). The pinion gears are rotatably mounted on an axle (21) oriented approximately perpendicular to the line of reciprocate motion of the piston. A slip clutch (23a and 23b) on each pinion gear alternatively locks and unlocks the pinion gear to the axle to permit rotation of the axle in one direction as the piston reciprocates. Preferably, fuel combustion occurs alternatively in each cylinder head. A valved chamber (34L and 34R) in the cylinder head enables exhaust. Preferably, a flywheel (49) is connected to the axle.

Abstract: An engine is provided comprising a cylinder, a piston, a connecting rod, and a crank. A cylinder combustion occurs in the cylinder to induce movement of the piston in a lateral direction. The cylinder combustion comprises a first stage during which a first portion of a fuel and air mixture is burned over a substantially constant volume, and a second stage during which a second portion of the fuel and air mixture is burned over a substantially constant pressure. The piston comprises a piston head and a rigid piston rod mounted to the piston head. The connecting rod is pivotally mounted to the rigid piston rod and capable of receiving a pulling force applied by the piston. The crank is pivotally mounted to the connecting rod such that the connecting rod applies a torque capable of rotating the crank about a fixed axis as the piston moves within the cylinder.

Abstract: The present invention is an engine, including two banks of cylinders in a flat, opposed cylinder arrangement and a crankshaft having a plurality of paired throws, the two throws of each respective pair of throws being disposed adjacent to each other and coplanar with respect to each other.

Abstract: A valve-operating mechanism for an internal combustion engine having intake and exhaust valves and valve control members for controlling the intake and exhaust valves. The intake and exhaust valves are configured as dual valves having an outer valve and an inner valve. The valve control members, at least during scavenging, simultaneously close the outer valves of the intake and exhaust valves, producing a non-overlapping state, and simultaneously open the inner valves of the intake and exhaust valves, producing an overlapping state.

Abstract: An internal combustion engine which includes two parallel crankshafts positioned in crankcases, a cylinder positioned on a side of the crankcases, a piston movably disposed within the cylinder, and connecting rods linked to the piston and extending from respective crankshafts. Positions at which the two connecting rods are linked to the piston and the crankshafts are constantly kept symmetrical with respect to a cylinder axis when the two crankshafts rotate in opposite directions.

Abstract: A device for transforming an alternating motion of a piston into a circular motion of a shaft is provided. The device includes an assembly of two pistons connected by two racks alternatively in mesh with a toothed cam set on a shaft. Movement in one direction of the assembly formed by piston and racks, following an explosion in one of the cylinders, causes one of the racks to mesh with the toothed sector and to rotate the shaft. At the end of this meshing period, the cam cooperates with a roller of one of the pistons so as to ensure continuity of the drive. Then, the explosion occurs in the other cylinder causing movement of the assembly in an opposite direction and so meshing of the other rack with toothed cam set, continuing the transformation of power to the shaft.

Abstract: The present invention is an engine, including two banks of cylinders in a flat, opposed cylinder arrangement and a crankshaft having a plurality of paired throws, the two throws of each respective pair of throws being disposed adjacent to each other and coplanar with respect to each other.

Abstract: The engine of the present invention provides the direct transfer of energy from the burning down of fuel in the engine cylinders into shaft power by forcing working liquid through guide devices and against an impulse turbine, thereby eliminating the need for supplemental pumps and the usual power losses associated therewith, thus improving the fuel consumption to power output ratio. In addition the engine of the present invention provides an internal combustion engine characterized by a crankshaftless design which meets all of the requirements for operation over the speed ranges necessary for a wide range of the propulsion systems, such as but not limited to, cars, and trucks of all sizes, rail traction, and marine propulsion.

Abstract: The reciprocating internal-combustion engine comprises at least one hollow cylinder, with a chamber inside a working fluid, the chamber has an end closed by a head and an opposite end closed by a piston that reciprocates by rectilinear motion in the chamber between a bottom dead center and a top dead center, and a device for converting the reciprocating rectilinear motion into a rotary motion of a driving shaft. The conversion device comprises at least one push rod substantially perpendicular to the shaft with a first end associated with the piston and a second end provided with pusher elements, and at least one contoured eccentric element keyed on the shaft on which a circuit element is provided which is crossed by the pusher elements and adjustment elements for adjusting sliding of the pusher elements along the circuit element so as to keep the rod and the piston in a substantially stationary configuration for a presettable rotation angle of the driving shaft.

Abstract: A device for transforming an alternating motion of a piston into a circular motion of a shaft is provided. The device includes an assembly of two pistons connected by two racks alternatively in mesh with a toothed cam set on a shaft. Movement in one direction of the assembly formed by piston and racks, following an explosion in one of the cylinders, causes one of the racks to mesh with the toothed sector and to rotate the shaft. At the end of this meshing period, the cam cooperates with a roller of one of the pistons so as to ensure continuity of the drive. Then, the explosion occurs in the other cylinder causing movement of the assembly in an opposite direction and so meshing of the other rack with toothed cam set, continuing the transformation of power to the shaft.

Abstract: The present invention relates to a linear motion engine, wherein four cylinders are arranged in two laterally opposing rows with each of their respective piston rods sharing common linkage to a slider located in midway between the two-cylinder rows and connected to the eccentric crank shafts of a flywheel; and whereby each cylinder piston goes through an alternate linear motion comprising four steps of strokes of intake, compression, combustion and exhaust, constituting an engine unit capable of delivering power output through linear motion of the slider itself, subsequently contributing to an elimination of power loss from circular motion changeover and enabling to produce a compact engine suitable for work machines operated by linear motion.

Abstract: The invention provides a 4-stroke reciprocating piston engine having a supercharging piston, which ensures dynamic balance of the engine with only a simple construction and achieves high output.

Abstract: The invention relates to a crankcase for an internal-combustion engine, particularly for a horizontally opposed engine, having two crankcase halves (10, 12) in which bearing sections (18) with bearing bores (24) for the crank pins of a crankshaft are arranged, the two crankcase halves (10, 12) being screwed to one another in the area of the bearing bores (24), as well as having cylinder bores (14, 16) for receiving the pistons. It is suggested that the plane of division (30) of the two crankcase halves (10, 12) extend at an angle &agr;, and that the longitudinal axis (36) of the bearing bolts (26, 28) extend essentially at a right angle with respect to the plane of division (30). This results in a screwing-together of the two crankcase halves (10, 12) which is free of transverse force and is arranged close to the bearing bore (24).

Abstract: In previous Canadian patent applications of the present inventor, with number 2,302,870 filed on Mar. 15, 2001 in relation to “Poly-induction energetic engine”, and 2,310,488 filed on May 23, 2001 in relation to “Energetic and anti-discharge poly-turbine”, it has been shown how to advantageously build driving machines that were referred to as poly-inductive. The present patent application is a follow-up of the work initiated in the above-mentioned applications, especially with regard to the following aspects, which will allow generalisations of the work initiated, and also customisations. For a better understanding, the present application comprises a plurality of sections, each dealing with one aspect of the present invention. The first section, entitled “bridges for poly-induction engines”, shows how to achieve more balanced poly-inductive supports, more precisely by making use of induction cams.

Abstract: The invention relates to a crankcase for an internal-combustion engine, particularly for a horizontally opposed engine, having two crankcase halves (10, 12) in which bearing sections (18) with bearing bores (24) for the crank pins of a crankshaft are arranged, the two crankcase halves (10, 12) being screwed to one another in the area of the bearing bores (24), as well as having cylinder bores (14, 16) for receiving the pistons.

Abstract: The invention minimizes the problem of deterioration in engine strength by concentration of stress due to the combustion load in a hole portion provided on a crank journal support wall in a crank case and reduces pumping loss. Further, the invention discharges blow-by gas smoothly, while reducing the engine weight. There is provided a crank journal support portion structure disposed in a crank case of a horizontal opposed type engine, wherein a hole portion communicating with an adjacent cylinder is opened at rotation angular positions of a crank journal yielding small stress generated at a crank journal support wall portion by transmitting combustion load to the crank journal via a piston connecting rod, in the vicinity of the crank journal support hole of the crank journal support wall portion disposed between respective cylinders.

Abstract: Two pistons are reciprocatively disposed in each cylinder of an engine thereby forming combustion chambers at each end of the cylinder that operate in a four-stroke cycle, and a third combustion chamber formed between the pistons that selectively operates in a two-stroke mode. The combustion chambers at the ends of the cylinders have heads in which intake and exhaust valves are disposed, and the third chamber between the pair of pistons is ported to provide scavenged flow. The third chamber is not fueled and remains inactive except when maximum power is needed.

Abstract: An inboard gasoline marine engine for small water craft comprises a two cylinder horizontally opposed four stroke engine. The engine includes a massive crank shaft rotationally mounted in the crank case of the engine. A small flywheel is connected to one end of the crank shaft. The flywheel additionally drives the propulsion system used along with the engine. The fly wheel is typically disposed at the back of the engine, although positioning the flywheel in the front position would also be possible. A large bore cylinder (4¼ in.) is disposed in each cylinder jug. Reciprocating in each cylinder is a large diameter piston that has a long stroke (5 in.). Each piston is connected to the crank shaft through a long connecting rod (10 in.). The engine is capable of operating at very low RPM's. The engine also produces high torques at low speeds. The engine is of a size that minimizes the space occupied by the engine within the small water craft.

Abstract: An internal combustion piston engine with horizontally opposed cylinders. Each opposed pair of cylinders fires simultaneously, providing symmetric cranking force on the crankshaft 13. Each cylinder 1 is a simple solid of rotation with air-cooling fins 10. The cylinder heads 5 are modular. Each module covers two adjacent cylinders, and has liquid cooling channels. All cylinders are identical, and all cylinder heads are identical. The cylinders are held inward against the crankcase by the cylinder heads. Each cylinder head is held inward against the cylinders by two tension bolts 42 that span to the opposite cylinder head. One tension bolt crosses above the crankcase, and one below it. In a preferred 12-cylinder engine embodiment, each opposed pair of cylinders is separated from the other opposed pairs in spark timing by a sequence of 105 and 135 degrees that reduces torsional harmonic resonance in the crankshaft, eliminating harmonic balancers.

Abstract: A multi-cylinder engine in which a transmission mechanism is provided between a cam shaft linked with intake valves and exhaust valves and a crank shaft rotatably supported by a crank case and a plurality of bearing caps, wherein the transmission mechanism is configured as a chain-type transmission mechanism for making the engine compact. The restriction on the rotatably supporting position of a chain tensioner is moderated and the length of the chain tensioner is set at a relatively large value. The transmission mechanism is configured such that an endless chain, is wound around a drive sprocket, fixed on a crank shaft and a driven sprocket, fixed on a cam shaft. One end portion in the longitudinal direction of a chain tensioner, extending in the running direction of the chain is rotatably supported on one of the plurality of bearing caps in such a manner as to be elastically, slidably in contact with the chain.

Abstract: An inboard gasoline marine engine for small water craft comprises a two cylinder horizontally opposed four stroke engine. The engine includes a massive crank shaft rotationally mounted in the crank case of the engine. A small flywheel is connected to one end of the crank shaft. The flywheel additionally drives the propulsion system used along with the engine. The fly wheel is typically disposed at the back of the engine, although positioning the flywheel in the front position would also be possible. Opposite the flywheel on the front of the engine is a main belt for operation of an alternator, and a cover for a timing belt or chain. Two cam shafts are driven by the crank shaft through the timing belt or chain. A cylinder block or jug is located on each end of the crank case. A large bore cylinder (4¼ in.) is disposed in each cylinder jug. Reciprocating in each cylinder is a large diameter piston that has a long stroke (5 in.).

Abstract: A two stroke compound engine has a pair of horizontally opposed piston cylinder assemblies extending along a common axis therein. Each piston cylinder assembly includes a piston, a combustion chamber and respective inlet and exhaust valves. A pair of connecting rods extending along the common axis connect the respective pistons to a crank extending from a rotary housing. The rotary housing is rotatably mounted within the engine and includes an output shaft extending co-axially therefrom. A fixed ring gear is mounted co-axially about the rotary housing along an axis extending perpendicularly to the common axis. A planetary gear mounted on the crank meshes with the ring gear for rotating the rotatable housing in response to reciprocation of the pistons. A pair of combustors are mounted on exhaust ports of the respective piston assemblies for further combusting exhaust from the combustion chambers by mixing exhaust with cooling air and additional fuel.