Abstract: A fuel supply system 10 for an internal combustion engine includes a housing 12 defining a chamber 14 and provided with an inlet opening 16 upstream of the chamber 14 and an outlet opening 18 downstream of the chamber 14. The fuel injector 20 sprays a fuel mist into the chamber 14. A heater 22 heats air flowing into the chamber 14 via inlet 16 to a temperature of between 110° C.-260° C. Pressure within the chamber 14 is also negative relative to ambient pressure. The fuel sprayed into the chamber 14 via the fuel injector 20 is thermally cracked so that a mixture of thermally cracked fuel and heated air flows out from the outlet 18 for combustion in combustion chambers of the engine.

Abstract: A power system includes an internal combustion engine having a primary combustion chamber and a secondary combustion chamber, a first fuel being supplied to the primary combustion chamber, a second fuel being burned in the secondary combustion chamber so as to ignite the first fuel; a reformer that reforms a fuel by a dehydrocyclization reaction to generate an aromatic-rich high-octane-value liquid fuel together with a hydrogen-rich gaseous fuel; a gas/liquid separator that separates the liquid fuel from the gaseous fuel; and devices for respectively supplying the liquid fuel as the first fuel to the primary combustion chamber and the gaseous fuel as the second fuel to the secondary combustion chamber. Thus, the power system improves the combustion efficiency of the internal combustion engine.

Abstract: There is described a dosing system for cylinder lubrication oil for large diesel motor cylinders, e.g., in marine engines. The system has a supply pipe and a return pipe provided with each their valve (3, 27), and which are connected with a central supply pump. This comprises a number of injection units that are connected with the said pipes. Each unit comprises an injection nozzle for injecting atomized cylinder lubricating oil into an associated cylinder, a piston (1) provided at a rearmost part of the nozzle rod, and a controllable motor (37) which via a screw (33) is connected with the piston (1) in order thereby to adjust the pump stroke of the piston (1). Futhermore, the system comprises a central computer for controlling the valves (3, 27) and the motor (37) so that precise control of the amount of oil and precise timing are achieved.

Abstract: A wobble plate engine includes a cylinder block, a plurality of pistons, a drive shaft, a weight, an oscillating member, a plurality of rods connecting the pistons to the oscillating member, a pair of bevel gears and a plurality of thrust bearing assemblies wherein the plurality of thrust bearing assemblies are installed at the cylinder block and the oscillating member to support the straight shaft, the weight and the declined shaft and reduce a rotational velocity transferred therefrom.

Abstract: A control device for a multicylinder spark-ignition engine includes a flow path switching unit for switching intake and exhaust flow paths between a two-cylinder interconnect configuration and an independent cylinder configuration and an air-fuel ratio control unit. In a low-load, low-speed operating range, the flow path switching unit switches the engine to the two-cylinder interconnect configuration, and the air-fuel ratio control unit produces a lean mixture having an air-fuel ratio larger than the stoichiometric air-fuel ratio by a specific amount in preceding cylinders by injecting fuel thereinto and an air-fuel ratio approximately equal to the stoichiometric air-fuel ratio in following cylinders by supplying fuel together with burned gas of a lean mixture state discharged from the preceding cylinders into the following cylinders to perform combustion in special operation mode.

Abstract: By the utilizing of a slave cylinder working in coordination with a master cylinder, the slave cylinder both receives cool atmospheric air and receives hot, partially un-burnt exhaust gases from the master cylinder to create a second power-stroke in the slave cylinder. With the two coordinating cylinders, the entire working process is from 0 to 810 degrees of revolution crankshaft. The master cylinder cycles work from 0 to 720 degrees of revolution and slave cylinder cycles work from 90 to 810 degrees of revolution. The master cylinder begins to intake air and fuel at 0 degree of revolution and slave cylinder begins to intake air at 90 degrees of revolution. There is an angle of 60-120 degrees differences between master and slave cylinder, where the slave cylinder is trailing the master.

Abstract: A valve for regulating fluid flow and associated method of use. The valve includes a stepper motor, a first valve chamber having an inlet port, a second valve chamber having an outlet port, wherein the first valve chamber includes an opening between the first valve chamber and the second valve chamber, a first member that is rotatable and operatively attached to the stepper motor, a second member that engages the first member for linear movement of the second member between a first position and a second position when the first member is rotated by the stepper motor, and a sealing mechanism that is operatively attached to the second member, wherein the sealing mechanism can move adjacent to the opening when the second member is in the first position and the sealing mechanism can move away from the opening when the second member is in the second position.

Abstract: An internal combustion engine includes a plurality of cylinders each having intake and exhaust valves and at least one camshaft timed to operate the valves with a high performance fixed overlap. Each camshaft has a cam phaser controlled to equally vary the intake and exhaust valve timing for superior full throttle performance over the engine speed range; Valve deactivation mechanisms operate to deactivate up to half the cylinders during idle and light load operation for increasing fuel efficiency and emission control and maintaining stable operation of the operating cylinders. The engine may also be started with half the cylinders cut out and then run with stable operation in this mode during idle and light load because the increased load on the operating cylinders gives stable operation with an increased valve overlap permitting increased performance and emission control at higher load operation on all the cylinders.

Abstract: The invention provides an engine cooling device capable of suitably promoting the warm-up of an engine. This engine cooling device comprises a cooling circuit and a heat-accumulating passage. The cooling circuit is composed of a radiator passage, a bypass passage, and a flow rate control value for controlling the flow rate of coolant flowing though the bypass passage. The heat-accumulating passage is provided with a heat-accumulating container, and constitutes a heat-accumulating circuit for causing coolant in the heat-accumulating container to circulate via the engine. The cooling device completes the heat-accumulating circuit by connecting the heat-accumulating passage to the cooling circuit to supply the cooling medium in the heat-accumulating container to the body of the engine, opens the flow rate control valve to increase a flow rate of cooling medium flowing though the bypass passage, then disconnects the heat-accumulating passage from the cooling circuit, and closes the flow rate control valve.

Abstract: An intake module for a vehicular engine has a casing that is constructed of an air cleaner housing portion and an electronic control unit (ECU) housing portion. The air cleaner housing portion that houses an air cleaner is mounted on the engine. The ECU housing portion that houses an ECU is connected with the air cleaner housing portion. A plurality of reinforcement ribs is formed on an outer periphery of the ECU housing portion.

Abstract: Disclosed is a personal watercraft capable of efficiently placing a dry-sump engine room and of efficiently using a dead space in the engine room. The small dry-sump engine comprises: a plurality of cylinders; at least one cylinder head provided as corresponding to the cylinders; a crankcase chamber; an oil tank chamber independent of the crankcase chamber, the oil tank chamber being located lower than the cylinder head; and an oil return passage configured such that its upper end communicates with the cylinder heads and its lower end communicate with the oil tank chamber.

Abstract: There is provided an engine cooling system, in which operation tendency information calculating section provided in a control unit calculates values representing the tendency of engine operation, and a control valve provided in a cooling water circulating device is controlled based on the values. It is therefore possible to control the cooling water to a proper temperature conforming to the engine operating condition and improve both the engine power and the fuel economy.

Abstract: A combination of an engine and a pump. An integral first housing section defines a portion of both the engine housing and the pump housing and has a first major surface which defines a portion of the interior engine housing surface and an oppositely disposed second surface which defines a portion of the interior pump housing surface. The first housing section has an opening and a first bearing is disposed therein. The crankshaft extends through the opening and is supported by the first bearing. A pump driving mechanism, such as a wobble plate or camming member, is coupled with the freely extending length of the crankshaft projecting beyond the first bearing. The first major surface may define an oil sump within the engine and an oil passage extending between the first and second major surfaces may communicate oil between the engine and the pump.

Abstract: A valve seal for a rotary valve assembly for use in an internal combustion engine of the piston and cylinder type, wherein the cylinder head/combustion chamber is designed for high compression and of long stroke, such as a diesel engine, the rotary valves and the valve seals being positioned in relationship so as to permit charging of the cylinder with a fuel/air mixture and evacuation of spent gases, and to regulate the pressure within the valve seal and valve seat and hence regulate the pressure between the valve seal and the rotary valve.

Abstract: To provide an oil receiver in which friction on a shaft body generated in association with introduction of hydraulic pressure into the oil receiver is alleviated. Therefore, the amount of fuel consumption is reduced and durability is improved. Furthermore, the number of components is reduced, and thus manufacturing and assembly costs can be reduced. An oil receiver includes a connecting oil passage in communication with an inside of the shaft body via a communication hole formed in the shaft body. A lead-in oil passage for introducing lubricating oil into the connecting oil passage extends from the connecting oil passage radially outward. A balance oil passage extends from the connecting oil passage radially outward on an opposite side of the connecting oil passage from the lead-in oil passage. The balance oil passage is closed at an extremity thereof. Accordingly, lubricating oil can be introduced from the lead-in oil passage into the inside of the shaft body.

Abstract: A method for cooling a motor vehicle engine consists in regulating the volume and the flow rate of a coolant fluid in a hydraulic circuit provided with a branch equipped with an electronically controlled actuator and means forming radiator. The method comprises a step of determining the temperature of the cooling liquid, a step of comparing the temperature of the cooling liquid with a specified threshold temperature from which the engine is said to be hot, and, when the temperature of the fluid is higher than the threshold temperature, the flow rate in the radiator branch is regulated so as to maintain the temperature of the cooling fluid around a specified setpoint value. The curve representing the opening of the thermostat valve based on the temperature of the cooling fluid exhibits an hysteresis around the setpoint temperature. The invention also concerns a device for cooling a motor vehicle engine.

Abstract: In order to provide a four-stroke internal combustion engine (100) having a control chamber (16) and a cylinder (14), provided with at least one intake valve (12) and at least one exhaust valve, which has a crankshaft chamber (22) formed by a crankcase (26), in which a connecting rod (24) connected to the reciprocating piston (18) drives a mounted crankshaft (28), having an ignition device and having a supply device (30) for an air-fuel mixture, which is connected on one side via a connection line (32) to the control chamber (16) and on the other side in the flow direction (54) of the air-fuel mixture to the piston chamber (20) via a throttle device (34) positioned in a mixture intake port (36) and via a mixture supply line (38), which is connected via a non-return valve (40a) to the crankshaft chamber (22), and having an overflow channel (44) between the crankshaft chamber (22) and control chamber (16), in which a camshaft (46) is positioned for controlling the intake and exhaust valves (10, 12), which allow

Abstract: In a fuel cut-off device for an engine in which one of a plurality of generating coils of a generator is connected to a normally-opened type solenoid valve adapted to block a fuel passage in a carburetor upon energization of the solenoid valve through an engine control switch adapted to be operated to a turned-off position and a turned-on position so that the solenoid valve can be energized from the one generating coil in the turned-off position of the switch, an output from the one generating coil is supplied to an electric load in the turned-on position of the engine control switch, together with outputs from the other generating coils. Thus, during operation of the engine, also the output from the one generating coil conventionally prepared for cutting off fuel is effectively supplied to the electric load, together with the outputs from the other generating coils, whereby the generating performance of the generator can be enhanced.

Abstract: A device for and method of decarboning a combustion chamber and compression rings in an internal combustion engine. The device is a squid shaped container with a cylindrical body, a screw cap, and conduits depending from the body for transmitting cleaner to the combustion chambers on the engine. Once cleaner is transmitted to the combustion chambers, the engine is bumped to work the fluid into the compression rings. When the engine is bumped, the device allows the cleaner to be vented to the device to avoid hydrolocking the engine. The device also contains the cleaner so that it is not splashed outside the engine.

Abstract: A device and a method for the modification of an operating all-loss engine lubricant's properties in response to actual engine operating conditions. The present invention is a method that comprises (1) monitoring the specific engine parameter(s) of interest, or in the alternative, predicting those parameter(s) from other engine inputs for a crosshead diesel engine; (2) calculating from said parameter(s) or input(s) the amount of performance enhancer(s), base lubricant or alternatively formulated lubricant that need be added to the engine's base lubricant; and (3) modifying said base lubricant with said performance enhancers, additional base lubricant or alternatively formulated lubricant before introduction the combination into said monitored part or location.