Abstract: An eddy flow generator includes a base adapted to be located at a joint between the fuel injector and the intake manifold and multiple passages each being adapted to correspond to and communicate with one of multiple air paths of the intake manifold. Each passage has multiple spirally formed blades to direct air flow in a spiral pattern. Therefore, air coming from the intake manifold is able to fully mix with fuel via movement of the air in a spiral pattern.

Abstract: The present invention is an apparatus for redirecting a reversion pulse between a combustion chamber of an internal combustion engine and a fuel and air mixing device. The apparatus comprises a helical pathway through which a charge traveling from the fuel and air mixing device to the combustion chamber flows. The apparatus further comprises a chamber disposed at a periphery of the helical pathway. A reversion pulse traveling from the combustion chamber to the fuel and air mixing device flows into the chamber.

Abstract: Superior piston bowl and combustion chamber configurations are designed for a reverse tumble spark ignition direct injection engine. The piston includes a shallow bowl extending from adjacent an edge of the piston head to an inner side slightly beyond a peak. The bowl features a bowl lip re-entrant angle at the spark plug location having an open or positive re-entrant angle. On lateral edges of the bowl between the inner and outer edges, wing like extensions include negative re-entrant angles. These help contain the injected fuel within the bowl during combustion. Other features of the combustion chamber include vertical intake ports that produce a weak reverse tumbling air flow motion with a tumble ratio of about 0.6, which allows increased flow efficiency of the port. An injector spray cone angle of 90 degrees is preferred with a bowl sized to capture the spray. Various additional features are disclosed.

Abstract: The present invention provides a piston for a diesel engine that reduces emissions generated during the combustion of fuel in a combustion chamber and a head that allows more air to flow into and out of the combustion chamber. The piston includes an igniter that ignites fuel injected into the combustion chamber and a piston bowl. The piston bowl agitates air in the combustion chamber to quickly mix the fuel and air before the igniter ignites the fuel and to reduce carbon build-up from unburned fuel in the combustion chamber. By igniting the fuel shortly after it is injected into the combustion chamber, the igniter reduces the time between injection and combustion of the fuel in the combustion chamber. Thus, the amount of NOx produced during combustion is reduced. Furthermore, injection of the fuel can commence when the piston is closer to top dead center and thus more power can be generated.

Abstract: A system and method for controlling air charge motion in the cylinder of a direct injection spark ignition engine during transitions between different combustion modes is provided. The system includes a cam profile switching device that controls the position of an intake valve for the cylinder. The system further includes an electronic control unit configured to control the cam profile switching device to position the intake valve in a first position in advance of the transition and to move the intake valve to a second position when a predetermined condition for transitioning between the two combustion modes is met.

Abstract: A system and method for controlling air charge motion in the cylinder of a direct injection spark ignition engine during transitions between different combustion modes is provided. The system includes a cam profile switching device that controls the position of an intake valve for the cylinder. The system further includes an electronic control unit configured to control the cam profile switching device to position the intake valve in a first position in advance of the transition and to move the intake valve to a second position when a predetermined condition for transitioning between the two combustion modes is met.

Abstract: An intake device of an internal combustion engine is provided that includes an intake flow control valve shaped so as to be capable of effectively forming a tumble flow within a combustion chamber when there is a projection within an intake pipe located downstream of the intake flow control valve. The intake device of the internal combustion engine includes an intake flow control valve between a throttle valve provided within an intake pipe and a fuel injector located downstream of the throttle valve, for producing a tumble flow in a combustion chamber. The intake flow control valve includes a valve body. The valve body has a bypass airflow producing portion formed at a position corresponding to that of the fuel injector (i.e., a projection within the intake pipe) when viewed in a flow direction of the airflow.

Abstract: An air intake system for an internal combustion engine. The intake system has a cylinder head delimiting at least one cylinder, an intake manifold which has at least one air passage per cylinder, and at least one intake passage in the cylinder head per cylinder, with an intake port leading into the associated cylinder. The intake manifold has a cylinder head flange connected to the cylinder head so that each air passage of the intake manifold is in fluid-conductive connection with an associated intake passage in the cylinder head. A flap valve is operatively arranged in the air passage so as to constrict a cross section of the air passage of the intake manifold. A partition wall is arranged in the intake passage so as to divide the intake passage over a predetermined distance between the cylinder head flange and the intake port.

Abstract: A piston for an internal combustion engine is provided which has at a top surface thereof a cavity for causing a mixture charge drawn from an intake port into a combustion chamber so as to flow with a rotational motion about a horizontal axis to flow toward a spark plug. A combustion chamber structure for an internal combustion engine is also provided.

Abstract: A vortex generating fuel saving device is installed on the air intake hose to a fuel injector. An airfoil body creates a spiral vortex of air spiraling off of its outer edge, thereby increasing the air in the fuel-air mixture to the fuel injectors. The airfoil body is mounted on the forward rim of the air intake hose by a clip, and is positioned inside of the hose with the edge of the airfoil in the center of the hose. The airfoil creates a spiral vortex, which is in concentric relation to the interior of the hose, thereby allowing maximum mixture of air in the fuel-air mixture. The airfoil is capable of being adjusted in width so that the outer edge of the airfoil blade is positioned in the center of any of a variety of sizes of fuel injector air intake hoses.

Abstract: A device for use in an intake path of an internal combustion engine may include a body portion, e.g., an insert body portion sized to be received within an opening defined in an intake path of an internal combustion engine, and at least one passage surface defining at least one passage about an axis through the body portion. The passage surface may define at least one channel. At least a portion of the passage surface may be tapered. Further, at least a portion of the passage surface may form at least a part of a venturi.

Abstract: The present invention provides a fuel injection device comprising an intake pipe having interior wall surfaces for providing air from an upstream side to a downstream side and a fuel injection port disposed in the intake pipe between the surfaces for providing fuel into the intake pipe and an air guide member disposed in the intake pipe in a plane substantially parallel to the surfaces for guiding air separately towards an air flow layer passage and a main air passage wherein the air guided towards the air flow layer passage has a speed at least greater than the air guided towards the main air passage.

Abstract: The invention relates to a spark ignited internal combustion engine with at least one cylinder that accommodates a reciprocating piston, with a cylinder head that receives at least one ignition device per cylinder and in which are formed one exhaust and two intake manifolds, said exhaust manifold communicating with a combustion chamber by way of one exhaust port and said intake manifolds communicating therewith by way of intake ports, said exhaust port being controlled via an exhaust valve and said intake ports via intake valves, said exhaust port on the one hand and said intake ports on the other hand being arranged to different sides of an elevated plane of the engine that passes through the axis of the cylinder and through the axis of the crankshaft, said intake manifolds being at least in sections arranged substantially in the direction of the cylinder's axis and being formed in such a manner that a reverse tumble flow is initiated in the combustion chamber, said flow being oriented from the intake p

Abstract: The device is utilized to provide swirling of either intake air flow or exhaust gas flow of an internal combustion engine. When used to swirl intake fluid flow, the device is positioned in the intake passageway for air entering the carburetor or fuel injection subsystem. The swirling of the air provides more complete mixing of the air and fuel entering the combustion chamber of the engine thereby providing more complete combustion of the fuel mixture. When utilized to swirl exhaust fluid flow, the device is positioned in the exhaust passageway for exhaust gases exiting the exhaust manifold. The swirling of the exhaust gases minimizes slowing of exhaust gas flow through the exhaust system to reduce back pressure and thereby provide more complete combustion. The device includes a set of flat planar vanes which are mounted within a housing.

Abstract: The invention relates to an air flow twisting device that can twist the air in an air inlet system of internal combustion engine. This device can be installed between an air filter and an engine combustion chamber. The device includes a body having a bore therethrough and a length. The device can be made from various materials such as metals, polymers or ceramics.

Abstract: An intake port of an internal combustion engine having an intake passage curved to a certain direction and communicated with a combustion chamber of the engine to send air into the combustion chamber, provided with a groove provided in a wall at a side near a center of curvature of said intake passage in the wall defining the intake passage and extending along the flow of air in the intake passage, at least one long edge formed by one side wall of the wall defining said groove and the wall adjoining said side wall in the wall defining the intake passage, extending along the flow of air in the intake passage, and projecting out toward the inside of the intake passage, and a bent part provided at the wall of the side near the center of curvature of the intake passage in the wall defining the intake passage in proximity to a line connecting the intake passage and combustion chamber and extending in a horizontal direction with respect to the flow of air in the intake passage.

Abstract: A carbon deposit inhibiting thermal barrier coating for an internal element or component in a gas turbine engine. Such coating includes a layer of thermal barrier material coated onto the surface of an engine component that will be exposed to the flow of burning engine gases. Such coating further includes a layer of carbon deposit inhibiting material coated on top of the layer of thermal barrier material.

Abstract: A combustion chamber for a swirl flow two valve spark ignition direct injection engine includes a cylinder with a closed end having a wedge shaped combustion chamber recess. A fuel injector extends through the closed end near a shallow side of the wedge recess. A spark plug extends through the closed end at a deeper part of the wedge recess opposite from the injector. A single pair of laterally spaced intake and exhaust valves control intake and exhaust ports opening into the wedge recess. A piston in the cylinder has an outer diameter and includes a head end having a raised pedestal with a shallow upwardly angled face ending at a raised ridge and enclosing a shallow bowl in the head end. The bowl is generally oval with a major dimension generally aligned with a cylinder centerline through the valves.

Abstract: In a method of operating a diesel internal combustion engine, wherein a homogeneous mixture is formed in the combustion space before a spontaneous ignition by means of fuel injected directly into separately supplied combustion air, which combustion air is admitted to the combustion space in a swirling flow about the longitudinal axis of the cylinder that can be adjusted as regards its swirl intensity by a control element. A control unit adjusts the swirl intensity in a manner coordinated with the injection parameters to provide a homogeneous mixture igniting at a predetermined point for highly effective engine operation with low emissions.

Abstract: A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

Abstract: A throttle body spacer (FIG. 1) with Six (6) rapid twisting slots (radius) (FIG. 2-3) the six (6) equally spaced rapid twisting slots maintaining a constant radial slot depth having a pitch of 0.5 (½) per 1 inch on a 1.0 inch thick spacer, and 0.375 (⅜) per 1 inch on a 0.75 inch thick spacer, the rapid twisting slot is a combination of three (3) radius (FIG. 3) this is accomplished by using a 90 degree dove tail tool with a 0.046 radius on the corner in conjunction with the ½ and ⅜ pitch slots, the bottom edge of the slots is extended into the tapered bore from top to bottom allowing it to grab the incoming air, this causes a vortex of air for better fuel atomization giving the engine more horsepower, torque and improved gas mileage.

Abstract: A combustion chamber for a swirl flow two valve spark ignition direct injection engine includes a cylinder with a closed end having a wedge shaped combustion chamber recess. A fuel injector extends through the closed end near a shallow side of the wedge recess. A spark plug extends through the closed end at a deeper part of the wedge recess opposite from the injector. A single pair of laterally spaced intake and exhaust valves control intake and exhaust ports opening into the wedge recess. A piston in the cylinder has an outer diameter and includes a head end having a raised pedestal with a shallow upwardly angled face ending at a raised ridge and enclosing a shallow bowl in the head end. The bowl is generally oval with a major dimension generally aligned with a cylinder centerline through the valves.

Abstract: The invention relates to a method for controlling the operation of an internal combustion engine that is operated, in at least one operational range, with a homogeneous charge compression ignition mode, combustion history being monitored and evaluated by measuring at least one parameter relevant to combustion selected from the group comprising the start of combustion, the duration of combustion and the rate of combustion, and at least one parameter relevant to combustion being controlled, for subsequent combustion events, on account of the evaluation of the combustion. In order to stabilize combustion in the homogeneous charge compression ignition mode of operation in the easiest possible way, the inventors propose to vary the level of turbulence in the combustion chamber for the purpose of controlling combustion, the level of turbulence being temporarily raised to stabilize combustion.

Abstract: In a starting time in which an air motion is little, a means for heightening the motion is added, from the starting time a stratification combustion operation is enable to carry out, and a discharge of an unburned fuel is minimized. From the starting time of an engine (from the firstly combustion cylinder) it is possible to carry out a stable stratification combustion. In accordance with the stratification combustion in the exhaust air a large quantity of the surplus oxygen remains. In the engine in the exhaust stroke twice (two time) fuel injection is carried out and the after burn phenomenon is caused in the exhaust port and then the exhaust gas temperature can be raised.

Abstract: A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

Abstract: An intake port of an internal combustion engine having an intake passage curved to a certain direction and communicated with a combustion chamber of the engine to send air into the combustion chamber, provided with a groove provided in a wall at a side near a center of curvature of said intake passage in the wall defining the intake passage and extending along the flow of air in the intake passage, at least one long edge formed by one side wall of the wall defining said groove and the wall adjoining said side wall in the wall defining the intake passage, extending along the flow of air in the intake passage, and projecting out toward the inside of the intake passage, and a bent part provided at the wall of the side near the center of curvature of the intake passage in the wall defining the intake passage in proximity to a line connecting the intake passage and combustion chamber and extending in a horizontal direction with respect to the flow of air in the intake passage.

Abstract: An internal combustion engine 10 comprises a cylinder 12 including a combustion chamber 17 having at least two air input ports 31, 51 and a piston 18 movable in cylinder 12 so as to vary the volume of combustion chamber 17. An air supply system 20 for supplying combustion air to cylinder 12 comprises first and second air intake systems 30, 50, each including an air passage 33, 53 and a valve 40, 60 controlling air passage through their respective port 31, 51. Each valve is controlled such that second valve 60 is open longer than first valve 40. An air flow valve controller 72 responsive to engine speed and air pressure downstream of a throttle valve 24 moves a valve 81 in second passageway 53 to permit greater air flow through second air passage 53 at higher engine speed and at air pressure less than steady state air pressure for the engine speed.

Abstract: Superior piston bowl and combustion chamber configurations are designed for a reverse tumble spark ignition direct injection engine. The piston includes a shallow bowl extending from adjacent an edge of the piston head to an inner side slightly beyond a peak. The bowl features a bowl lip re-entrant angle at the spark plug location having an open or positive re-entrant angle. On lateral edges of the bowl between the inner and outer edges, wing like extensions include negative re-entrant angles. These help contain the injected fuel within the bowl during combustion. Other features of the combustion chamber include vertical intake ports that produce a weak reverse tumbling air flow motion with a tumble ratio of about 0.6, which allows increased flow efficiency of the port. An injector spray cone angle of 90 degrees is preferred with a bowl sized to capture the spray. Various additional features are disclosed.

Abstract: A passive turbulent control assembly 10 having a generally flat plate member 30 which is movably disposed within an intake port member 12 by the use of a pin 36 and a pair of selectively compressible or tuning assemblies 48, 50. The member 30 always allows air 17 to flow through the member 12 and occupies a position, within the member 12, which is determined by the amount of air 17 entering the member 12, effective to increasingly constrict the interior cavity 52 as the amount of air 17 entering the member 12 decreases.

Abstract: A device for use in an intake path of an internal combustion engine includes a body portion having an upper surface and a lower surface. The body portion includes at least one passage surface defining at least one passage about an axis from the upper surface to the lower surface. The passage surface further defines a plurality of channels about the axis of the passage. Each channel extends from a channel opening in the upper surface to a channel opening in the lower surface. Further, the device may include a passage surface that is a continuous surface from the upper surface of the body portion to the lower surface of the body portion. The continuous surface extends from a first opening of the passage inward towards the axis of the passage and then further extends away from the axis towards a second opening of the passage at the lower surface of the body portion forming a venturi through the device.

Abstract: Disclosed is a wing structure of air swirling device for internal combustion engine, which has a swirling device body mounted in an air cleaner, a plurality of wings mounted slantingly and radially on the swirling device body for accelerating or increasing an airflow revolution, and one or more slits formed on prescribed positions of the plurality of wings for suppressing the formation of eddy in a negative pressure zone on the rear surface of each of the plurality of wings, includes a plurality of auxiliary wings protrudedly provided to the outside with reference to the surface of each of the wings, so that the airflow collided against the surface of each of said wings go straight ahead.

Abstract: The invention relates to a variable swirl generating intake manifold with at least one longitudinally oriented partition wall that forms at least one swirl generating first manifold section and one swirl stopping second manifold section, said manifold sections only meeting again in the valve area, at least the second manifold section being, for the purpose of increasing the swirl, at least partially closable in the entrance area by means of a control flap that is pivotal about an axis, said axis being substantially arranged in the plane of the partition wall, said control flap having two arms and said two manifold sections being at least partially closable in a first rotational end position and open in a second rotational end position.

Abstract: An air swirling device adapted to be used in the air flow system of an internal combustion engine which comprises a swirling device body having a external dimension adapted for incorporation into said air flow system, a plurality of wing members having upper and lower side surfaces, said wing members extending radially and slantingly from the periphery of the swirling device body toward the center thereof, and wherein at least one of the upper and lower side surfaces has a non-liner configuration.

Abstract: In a fuel injection apparatus of an internal combustion engine comprising a fuel injector, an intake valve device for opening and closing an intake port, and an intake air flow control device arranged in an upstream side of the intake valve device, a fuel injection is synchronized with an intake stroke of the engine. A fuel spray is oriented to an inner wall face which is positioned in an opposite side to an inner wall face of a cylinder heads in a fuel injector side and the fuel spray is transported by an air flow having a strong fluidization which is entered from the intake air control device. In a port injection lean burn engine, an adhesion to the wall face according to the fuel spray can be reduced, and a quality and a formation state of an air-fuel mixture in a cylinder can be improved.

Abstract: An intake passage of an internal combustion engine is divided into two intake passages downstream of a throttle valve. A tumble generating valve is disposed in one of these two intake passages. When the engine is stopped, the tumble generating valve is fully closed once and then opens by a specified opening angle. While the engine is inoperative, the tumble generating valve is held at that angle until the engine is started again.

Abstract: The invention is directed to a method and an arrangement for monitoring the operation of a gas flow control element in an internal combustion engine. In this method, the engine rough running is detected and at least one rough-running signal is formed which represents the rough running of the engine. Then, by driving the gas flow control element, a change of the position of the gas flow control element is attempted. Then, a detection of the rough-running signals as a function of the change of the position of the gas flow control element takes place. The change of position is intended by the driving of the gas flow control element. From the above, a function signal can be derived which provides information as to the operation of the gas flow control element. The diagnosis of a gas flow control element by evaluation of the engine rough running in engine controls (which anyway have units for forming rough-running values) permits a diagnosis of the above kind without separate sensors for function monitoring.

Abstract: A piston structure for a direct-injection, spark-ignition engine which properly stratifies a mixture adjacent to the spark plug in a stratified-combustion operation without impairing the reliable ignition of the spark plug. In the direct-injection, spark-ignition engine, the central portion of the roof of the combustion chamber is located at a higher level than its peripheral portion, the spark plug is disposed in the central portion, the fuel injector is disposed on the left side of the central portion, and the fuel injector injects fuel so that the fuel contacts the tumble flow produced in the combustion chamber in such a manner that the mixture is concentrated adjacent to the spark plug and ignited in the area in which the tumble flow turns clockwise.

Abstract: A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of-the inlet and outlet device. This improved control is used to improve various engine control functions.

Abstract: A spark-ignition type 4-cycle direct injection engine is provided with a turbocharger for boosting intake air and an injector for directly injecting fuel to a combustion chamber within a cylinder, wherein in a &lgr;=1 region (II) and an enriched region (III) on the high-speed high-load side, fuel is injected during the intake stroke of the cylinder to attain a state of homogenous combustion. When the engine is in the high-speed side (specific region) of the enriched region (III), the air-fuel ratio A/F of the air-fuel mixture in the cylinder is controlled to become A/F≦13, the tumble flow T is strengthened by closing the TSCVs, and the opening degree of a wastegate valve of the turbocharger is controlled in order to increase the maximum boost pressure and compensate the drop in intake efficiency that is caused by closing the TSCVs.

Abstract: An air intake flow device to manipulate the airflow in an air entry chamber of a positive displacement internal combustion engine. The air intake flow device is comprised of a skirt defining an air flow passageway, multiple vanes extending into the airflow passageway from a first leading edge at the surface of the skirt. The configuration of the vanes direct the airflow into a vortex like configuration which is understood to improve air intake across the intake valve into the combustion chamber and thereby improve oxidation of the fuel. The airflow device is preferably constructed in a fashion so that the installer of the device can readily adapt its configuration by applying hand pressure from a first manufactured configuration to second installation configuration. Thus, the device is suitable for adaptation to various air entry chamber shapes.

Abstract: Air induction noise of a throttle apparatus caused by interference between flowing air and an opening for a bypass passage is reduced because a protrusion formed on an interior surface of the throttle apparatus changes aerodynamic features of the throttle apparatus.

Abstract: A diaphragm valve assembly includes a diffusing screen, and a generally spherical lightweight membrane that provides a 360° circular seal. Spring loading enables variable resistance to be placed on the seal to allow the operator to adjust the internal pressures in an engine by metering the intake and exhaust cycles to obtain maximum performance characteristics from the subject engine.

Abstract: A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control that is faster than possible by using an inlet device alone. In other words, the method of the present invention controls cylinder air charge faster than manifold dynamics by coordination of the inlet and outlet device. This improved control is used to improve various engine control functions.

Abstract: The invention relates to a method for controlling the operation of an internal combustion engine that is operated, in at least one operational range, with a homogeneous charge compression ignition mode, combustion history being monitored and evaluated by measuring at least one parameter relevant to combustion selected from the group comprising the start of combustion, the duration of combustion and the rate of combustion, and at least one parameter relevant to combustion being controlled, for subsequent combustion events, on account of the evaluation of the combustion. In order to stabilize combustion in the homogeneous charge compression ignition mode of operation in the easiest possible way, the inventors propose to vary the level of turbulence in the combustion chamber for the purpose of controlling combustion, the level of turbulence being temporarily raised to stabilize combustion.

Abstract: The invention relates to a control process for charge flow management devices as arranged in the intake area of the inlet ports of direct-injection internal combustion engines and port-injection type internal combustion engines having intake ports into which no fuel is injected. The process is characterized by the fact that the charge flow management devices are not closed when the engine operates on overrun. This reduces fouling on the intake valves produced by fuel and lubricant residue.

Abstract: The invention is directed to a method and an arrangement for monitoring the operation of a gas flow control element in an internal combustion engine. In this method, the engine rough running is detected and at least one rough-running signal is formed which represents the rough running of the engine. Then, by driving the gas flow control element, a change of the position of the gas flow control element is attempted. Then, a detection of the rough-running signals as a function of the change of the position of the gas flow control element takes place. The change of position is intended by the driving of the gas flow control element. From the above, a function signal can be derived which provides information as to the operation of the gas flow control element. The diagnosis of a gas flow control element by evaluation of the engine rough running in engine controls (which anyway have units for forming rough-running values) permits a diagnosis of the above kind without separate sensors for function monitoring.

Abstract: A spark-ignition type 4-cycle direct injection engine is provided with a turbocharger for boosting intake air and an injector for directly injecting fuel to a combustion chamber within a cylinder, wherein in a &lgr;=1 region (II) and an enriched region (III) on the high-speed high-load side, fuel is injected during the intake stroke of the cylinder to attain a state of homogenous combustion. When the engine is in the high-speed side (specific region) of the enriched region (III), the air-fuel ratio A/F of the air-fuel mixture in the cylinder is controlled to become A/F≦13, the tumble flow T is strengthened by closing the TSCVs, and the opening degree of a wastegate valve of the turbocharger is controlled in order to increase the maximum boost pressure and compensate the drop in intake efficiency that is caused by closing the TSCVs.

Abstract: An intermediate flange system for an internal combustion engine with direct fuel injection. The intermediate flange system is mounted between the intake device and the cylinder head and includes two subunits (10, 11). The first subunit includes a basic body (12) and is responsible for conducting the fuel. The other subunit includes a basic body (13) and serves to conduct the intake air. Both basic bodies can be optimally designed as a function of demands to which they are subjected. Thus, basic body (13) is preferably made of synthetic resin material, and basic body (12) of aluminum. Consequently, the overall intermediate flange system is lighter than prior art systems, which heretofore have been made entirely of aluminum.

Abstract: A fuel supply system is disclosed for use with a vehicle propulsion system such as an internal combustion engine or a fuel cell system. The fuel supply system includes a water supply, fuel supply, and fuel conversion device coupled to the water and fuel supplies for generating hydrogen from the water and fuel and supplying the hydrogen to an intake manifold of the propulsion system with which the fuel supply system is used. The fuel conversion device preferably includes a vaporization chamber, an inlet nozzle for introducing fine droplets of fuel and water into the vaporization chamber, an air inlet for introducing air into the vaporization chamber to create turbulence in the chamber, a heater in the vaporization chamber for heating the turbulent fuel/water mix at temperatures that cause the mix to convert into hydrogen, and an outlet for supplying the generated hydrogen and air to the vehicle propulsion system.

Abstract: An integrated intake manifold assembly including a first poppet valve assembly disposed at the air inlet to the manifold to regulate air flow into the manifold; a second poppet valve assembly disposed on the manifold to regulate exhaust gas flow into the air intake system; and a bi-directional camshaft with cams for operating simultaneously the manifold vacuum regulating (MVR) valve and the exhaust gas recirculation (EGR) valve. The valve bodies are integrally formed in the wall of the intake manifold. The camshaft is driven by a DC motor and gear train. The cams are arranged on the shaft to provide optimum synchronized opening and closing of the related valves. When used on a diesel engine, the manifold assembly may further include a swirl valve plate disposed between the manifold and the engine head and having a plurality of ganged swirl valves actuated by levers, connected to the camshaft internally of the manifold and swirl plate, for coordinated motion with the MVR and EGR valves.