Abstract: For an effectively working regulation of the combustion process in the HCCI mode, a modeled combustion process, to be described by internal variables of state, is formed by using process-influencing variables. Output variables of the actual and modeled combustion process are then used to regulate the process-influencing variables.

Abstract: Early stage detection of engine liquid cooling problems is provided with temperature, pressure and other sensors and associated logic circuits configured for detecting alarm conditions including below normal static coolant pressure coupled with an elevated coolant temperature, above normal static coolant pressure, below normal coolant pump pressure condition, coolant voids due to coolant loss or boiling, and external steam or liquid leakage from the cooling system. A gauge displays the difference between coolant pump output pressure and static coolant pressure.

Abstract: A crankcase scavenged and lubricated four-stroke engine (1) comprising especially: a mixture-preparation device (15) for supplying an air-fuel-lubricant mixture; an intake channel (16) connecting to the crankcase or cylinder to supply at least air (13) to the crankcase volume (12); an overflow channel (17) connecting to the crankcase or cylinder and to the intake opening (7) with intake valve (8) to supply to the intake at least air and lubricant from the crankcase volume; a valve drive assembly (18) driven by a crankshaft (4) for actuating the intake valve (8) and the exhaust valve (10); a valve drive assembly housing (19, 20, 21, 21?, 22) comprising one or more sections (19, 20, 21, 21?, 22) which is/are separate from the crankcase but in communication exclusively with the crankcase volume via at least one small size passage (23, 24, 25, 26, 27), and each section (19, 20, 21, 21?, 22) of the valve drive assembly housing has a lowest part situated closer to the combustion chamber, than the lowest part of the

Abstract: A control device for at least one consumer of a motor vehicle, having an engine and at least one pump for supplying a medium via at least one pressure line to the at least one consumer, is configured to supply the medium to the at least one consumer before the engine is started. The pump can be driven by an electric motor or by the engine of the motor vehicle or alternatingly by the electric motor and the engine.

Abstract: A method of operating a compression ignition engine comprises introducing enriching component to a combustion chamber of the compression ignition engine, wherein the enriching component comprises hydrogen, carbon monoxide, or a combination comprising at least one of the foregoing; introducing bulk fuel to the combustion chamber; heating a glow plug to cause the enriching component to release thermal energy; and initiating combustion of the bulk fuel with the released thermal energy from the enriching component.

Abstract: An insert for a siamese-type internal combustion engine that separates a water jacket surrounding the cylinders into an upper portion and a lower portion. Below a predetermined engine speed coolant flows primarily in the upper water jacket portion so as to provide enhanced cooling at the upper portions of the cylinders. Above a predetermined engine speed coolant is introduced into the lower water jacket portion from the upper water jacket portion so as to provide improved cooling of the lower cylinder portions, without compromising cooling of the upper cylinder portions or the conjoined cylinder wall portions. The water jacket insert enhances coolant flow velocity at the siamesed or conjoined portions of the cylinder walls, and directs incoming initially coolant over the exhaust-side of the cylinders. Use of the insert reduces circumferential and axial intra-cylinder temperature deviations as well as inter-cylinder temperature deviations.

Abstract: The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers. An operating pilot oil tank and an ignition stimulant-added pilot oil tank are connected via a switching valve to a third pipe, connected to an end of the pilot oil main pipe. Before operating stops, the pilot oil is discharged by opening an exhaust valve, and thereafter, the switching valve is switched and pilot oil which the ignition stimulant has been added to is supplied into the pipe. Consequently, the pilot oil downstream from the main pipe is replaced with the pilot oil which the ignition stimulant has been added to. Therefore, at the time of the next activation, pilot oil which the ignition stimulant has been added to is sprayed from the fuel valve, and, as a result, misfire at the time of activation is reduced, and a highly reliable engine is obtained.

Abstract: The cooling system of a skid-steer loader provides for heat exchangers, e.g. liquid, oil coolers, mounted in the upper portion of an engine compartment and in direct communication with a forced air flow. Circulating air is drawn into the engine compartment from the rear, is carried over the engine and is blown out through the heat exchangers to cool the liquid within the heat exchangers. The housing of a centrifugal fan is rigidly coupled to the engine block and the fan is also directly coupled to the engine flywheel. This allows for closer tolerances between the fan and its housing which results in higher efficiency because this dual coupling to the engine inhibits differential vibration between the fan and the housing. Interconnection between the heat exchangers and fan housing is via a flexible bellows and an air diffuser.

Abstract: A hydrogen enhanced engine system using high compression ratio is optimized to minimize NOx emissions, exhaust aftertreatment catalyst requirements, hydrogen requirements, engine efficiency and cost. In one mode of operation the engine is operated very lean (equivalence ratio ?=0.4 to 0.7) at lower levels of power. Very lean operation reduces NOx to very low levels. A control system is used to increase equivalence ratio at increased torque or power requirements while avoiding the knock that would be produced by high compression ratio operation. The increased equivalence ratio reduces the amount of hydrogen required to extend the lean limit in order to avoid misfire and increases torque and power. The engine may be naturally aspirated, turbocharged, or supercharged.

Abstract: A method for operating a fuel system for an internal combustion engine operated with fuel gas. The fuel system has at least one electrically actuated shutoff valve (4) and at least one electrically operated heating device (14, 16). The operating method includes: generating a signal to turn on the heating device (14, 16) when the internal combustion engine is turned on; determining a heating demand (?reference) of the fuel system when the heating device (14, 16) is turned on; and depending on the heating demand (?reference) of the fuel system, determining a delay time between the time the heating device (14, 16) is turned on and the time the shutoff valve (4) is opened. The heating demand (?reference) can be a function of a temperature (Tengine coolant) of the engine and/or a temperature (Thydraulic fluid) independent of the engine and/or the current (Iheating) flowing through the heating device.

Abstract: A series type hybrid electric vehicle that controls an internal combustion engine, generator, and electric motor for reducing the load applied to the internal combustion engine when the internal combustion engine is restarted, lowers the thermal stresses to the internal combustion engine when the engine is turned off and is able to remove excess fuel when turning off the internal combustion engine.

Abstract: The present invention relates to an intake manifold or distributor for an air feed circuit for an internal-combustion engine comprising, on the one hand, an intake or plenum chamber of elongate shape and provided at one of its longitudinal ends with an intake aperture and, on the other hand, at least two pipes laterally connected to said chamber, said pipes extending at least partially around said intake chamber from their inlet apertures opening therein and having a curved structure over at least a portion of their length. Manifold characterised in that it consists of two parts (6 and 7) produced by injection moulding of thermoplastic material and joined together in the region of peripheral joint zones located on a joining surface (8?) crossing said manifold (1).

Abstract: A fuel separation apparatus includes a fuel tank storing the material fuel fed to a separation membrane, a fuel tank storing a separated low-octane fuel, and a fuel tank storing a separated high-octane fuel. An electronic control unit of the separation apparatus calculates the flow rate (amount of formation) of the high-octane fuel flowing into the high-octane fuel tank based on a change in the liquid level in the tank and on the amount of fuel fed to an engine from the tank, and so judges that an abnormal condition is occurring due to the breakage of the separation membrane when the amount of forming the high-octane fuel is larger than a predetermined upper limit value and that an abnormal condition is occurring due to a drop in the function of the separation membrane when the amount of formation is smaller than a predetermined lower limit value.

Abstract: A two-stroke internal combustion engine (1) is provided with one pair or plural pairs of C-shaped scavenging passageways (31, 32) of a reverse flow system where scavenging inlet ports (31a) as well as scavenging outlet ports (31b, 32b) are both opened to a cylinder bore (10a), wherein a scavenging introducing passageway (40) for introducing an air-fuel mixture (K) from a crank chamber (18) into the scavenging inlet ports (31a) is provided between the cylinder bore and the piston adapted to reciprocatively move up and down in the cylinder bore (10a), and an effective opening area of the scavenging inlet ports (31a) is gradually decreased due to the piston (20) in the course of descending stroke of the piston (20).

Abstract: An internal combustion engine in accordance with one aspect of the invention is characterized by comprising a combustion chamber, a reformer, and a control portion. A predetermined fuel component is burnt in the combustion chamber. The reformer has a reforming catalyst, and that produces a reformed gas which contains the fuel component obtained by reforming a mixture of fuel and air and which supplied to the combustion chamber. The control portion sets an air-fuel ratio of the mixture in the reformer such that a reforming efficiency of the reformer is held within a predetermined range, and sets an amount of the mixture supplied to the reformer such that an actual output torque of the internal combustion engine coincides with a target torque.

Abstract: A method of reducing smoke and particulate emissions from steam boilers and process heaters operating on liquid petroleum fuel by adding a fuel additive which contains an oil-dispersible iron compound and an over-based magnesium compound to liquid petroleum fuel.

Abstract: An electronically controlled thermostat enabling stable valve body actuation, preventing overshooting and hunting, and with reduced size and simplified construction. The thermostat can execute arbitrary variable control of cooling water temperature and includes a thermo-element having a piston actuating opening and closing within a housing of a first valve body and a second valve body to switch the flow path of cooling water by sensing the cooling water temperature and an element guide member holding the thermo-element within the housing. A temperature-sensing chamber is formed by isolation by the element guide member from the flow path in which cooling water on the radiator exit side flows; the temperature-sensing portion of the thermal element is disposed to face this chamber. A linking hole transmits the temperature of cooling water on the radiator exit side from within the flow path to the temperature-sensing portion within the temperature-sensing chamber.

Abstract: A liquified gas delivery system for a motorized platform includes a holding tank configured to receive liquified gas. A first conduit extends from a vapor holding portion of the tank to a valve device. A second conduit extends from a liquid holding portion of the tank to the valve device. Fluid coupled to the valve device is a vaporizer which is in communication with an engine. The valve device selectively withdraws either liquified gas or liquified gas vapor from the tank depending on the pressure within the vapor holding portion of the tank. Various configurations of the delivery system can be utilized for pressurizing the tank during operation.

Abstract: There is disclosed herein an improved air and fuel intake system for a high performance internal combustion engine for installing on a supercharger or the intake manifold of the engine. The air intake system is attached to the mounting surface of the supercharger or intake manifold such that the plurality of separate air passages of the intake system ensure the uniform distribution of intake air to all parts of the supercharger or intake manifold. Each air passage has a decreasing cross-sectional area along the direction of air flow to increase the velocity of the intake air. The air intake system includes a forwardly disposed air inlet, which faces in the direction of travel of a vehicle powered by the engine. The air passages are controlled by butterfly air valves in the air inlet.

Abstract: An apparatus and method for controlling the temperature of a component of an internal combustion engine is provided. The apparatus may be used to cool the combustibles such as the fuel, gasoline, diesel or alcohol or the inhaled air that is mixed with the fuel before the air and fuel, charge, enters the combustion chamber of the engine. Moreover, the apparatus may be used to cool fluids of an engine or transmission.