Abstract: This invention relates generally fluid mixer assembly and more particularly to an exhaust gas recirculation (EGR) mixer comprising an inlet conduit, an exhaust conduit, and a shielded conduit. The shielded conduit is partially disposed in the inlet conduit and has a fluid diverting portion and fluid passing portion. The fluid diverting portion diverts intake air into a first fluid stream and a second fluid stream. Exhaust gas is passed through fluid passing portion and is mixed with the first fluid stream and second fluid stream generally at a point downstream of the shielded conduit.

Abstract: At least two torque paths between a driver and a camshaft distribute dynamic torque applied to the camshaft, allowing for cancellation of undesirable torque components. The second torque path has a greater number of gears than the first torque path, and acts as a constraint on the camshaft, ameliorating discontinuities in camshaft rotation due to sudden changes in load on the camshaft.

Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, an intake air temperature is controlled. One of an ambient air flow restriction system or an intake air flow restriction system is used to vary the flow of a recipient ambient air flow through an air to air or the flow of a donor intake air flow through the aftercooler respectively. A plurality of louvers are operatively moved between a closed position and an open position with the ambient air flow restriction system. And, a flapper valve is operatively moved between a closed position and an open position with the intake air flow restriction system. A controller interprets a respective signal from a plurality of sensors to define the position of the plurality of louvers or to define the position of the flapper valve.

Abstract: An integral engine fueling and engine compression braking hydraulically actuated, electronically controlled unit injector (HEUI) system comprises a fuel injection piston. A brake rocker arm extends transversely through the fuel injector and axially accommodates the fuel injector plunger and plunger return spring. The brake rocker arm is also operatively connected to the engine exhaust valve rocker arm, and a camming shaft, having a flat or planar surface portion, is operatively connected to an end portion of the brake rocker arm. When the end portion of the brake rocker arm is disposed in contact with the flat or planar surface portion of the camming shaft, normal fuel injection can occur in accordance with an electronic control module (ECM).

Abstract: A single air inlet for a pair of turbochargers has a duct portion with a circular inlet, a converging bifurcated portion having a pair of circular outlets, which are in fluid communication with inlet portions of compressor portions of the turbochargers and evenly distribute the incoming air to the compressor inlet portions, a baffle disposed in the bifurcated portion separating the outlet portions to prevent pulses generated in one compressor portion from affecting the other compressor portion and an elbow portion that registers with the circular inlet.

Abstract: A vibration isolation or noise attenuation and fluid sealing system, for use in connection with internal combustion engine components. For example, for use in the mounting of a valve cover or rocker arm cover upon a cylinder block or cylinder head, or for the mounting of an oil pan cover upon an oil pan housing. The system has an isolation medium or member mechanically and/or chemically bonded to a peripheral flange portion of the cover member. A sealing flange member is chemically and/or mechanically bonded to the isolation member or medium. The three components being a one-piece unitary cover assembly. The fluid leakage along the interfaces defined between the three components is effectively eliminated. The one-piece assembly is secured to the cylinder block or head, or the oil pan housing, by shoulder bolt fasteners. The fasteners exert compressive forces upon the isolation member so as to vary the stiffness and frequency characteristics thereof.

Abstract: Past applications have found that a joint becomes damaged due to the high loading and vibration loads in which it encounters during operation. The counterbored joint utilizes the flexible shim that is larger than the body receiving bore. A undercut is machined into the body receiving bore which allows for the flexible shim to be placed within the body receiving bore between the first and second step surfaces. The first step surface is parallel to the second step surface which distributes stresses uniformly and helps in sealing. The principal use is for a cylinder liner joint, however any joint that is highly loaded or encounters vibrational loads will benefit from this invention. For example, a hydraulic joint that utilizes a piston in operation may be remanufactured with this invention.

Abstract: Conventional gas compressors use dry gas sealing arrangements mounted on a shaft of the gas compressor. Functionally, for the dry gas sealing arrangement to properly seal, the concentricity of shaft and the dry gas sealing arrangement must be maintained at a close tolerance. Past assembly techniques have failed to mount such dry gas sealing arrangement to the shaft in an effective and efficiently manner to control the concentricity during operation. The present method and apparatus for controlling the concentricity of a member with a centering device effectively and efficiently controls the concentricity between the member and the shaft. The structure of the centering device includes a first cylindrical portion, a second cylindrical portion and a transition portion. The first cylindrical portion is cantilevered about the shaft and centers a first end of the member. The second cylindrical portion and the transition portion form a mid-support for a second end of the member.

Abstract: An exhaust gas recirculation system for use with an internal combustion engine comprising a heat exchanger, a first turbocharger, and a generator. The first turbocharger provides compressed fresh air to an intake manifold. The heat exchanger cools the exhaust gas for recirculation into the intake manifold. The generator provides turbocharger control by imparting stored energy back into the turbocharger. Turbocharger control allows the exhaust gas recirculation system to operate more efficiently and over a wide range of operating conditions.

Abstract: Past air intake systems have failed to effectively and efficiently utilize the arrangement of structural components to increase boost at low engine speeds. The present air intake system effectively and efficiently utilizes the arrangement of structural components to increase boost at low engine speeds. The air intake system directs intake air through a turbocharger and evaluates the quantity of flow of intake air to the engine as compared to the flow of fuel. And, depending on the results of the evaluation, a directional control valve directs the flow of intake air to a supercharger or to the engine. The supercharger is driven by a motor having a variable rate of speed as compared to the engine.

Abstract: This invention relates generally to a piston assembly and more specifically to a piston assembly in a prepackaged configuration. The prepackaged piston assembly is ready for immediate installation into an engine or compressor. The piston assembly has a plurality of rings preinstalled on a piston member and a sleeve position about the piston member and the plurality of rings maintaining the rings in a compressed position ready for installation into an engine. The piston assembly is lowered into a cylinder bore, the sleeve contacts the top surface of a block and the piston assembly can be easily installed into the cylinder bore without the need for the mechanic to compress the plurality of rings. Thus the present invention reduces time and expense required for rebuilding and engine and increases the quality of the rebuild.

Abstract: An air-to-air aftercooler or heat exchanger for a vehicular internal combustion engine, which is independent of the main vehicle heat exchanger or radiator, and which is located at a position upon the vehicle which is remote from the main vehicle heat exchanger or radiator, has a filter for filtering ambient air; at least one aftercooler heat exchanger, separate from the main radiator heat exchanger and disposed upon the engine at a location remote from the main radiator heat exchanger, and having a first passageway defined therein which is fluidically connected to the filter for receiving the ambient air which has passed through the filter; a second passageway defined within the at least one aftercooler heat exchanger for receiving turbocharged air from the turbocharger, for conducting the turbocharged air through the at least one aftercooler heat exchanger such that the turbocharged air undergoes a heat exchange process with the ambient air, and for conducting the turbocharged air to the engine intake manif

Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient conditions and the operating parameters of an engine, a donor intake air temperature is controlled. An ambient air flow restriction system is used to vary the flow of a recipient ambient air through an air to air aftercooler. A plurality of louvers are operatively moved between a closed position and an open position. A controller interprets a respective signals from a plurality of sensors to define the position of the plurality of louvers.

Abstract: Recuperators include a core which is commonly constructed of a plurality of relatively thin flat sheets having an angled or corrugated spacer fixedly attached therebetween. The sheets are joined into cells, sealed and form passages between the sheets. These cells are stacked or rolled and form alternate air (recipient) cells and hot exhaust (donor) cells. Compressed discharged air from a compressor of the engine passes through the air cell while hot exhaust gas flows through alternate cells. The exhaust gas heats the sheets and the spacers, and the compressor discharged air is heated by conduction from the sheets and spacers. The need for repeatability of construction of each cell assures that the final recuperator is economically and easily assembled. Examples, of such repeatability required includes length, height, thickness, weld size, weld position, weld splatter and others.

Abstract: A vehicle operates under various ambient conditions and various operating parameters. To compensate for the ambient condition and the operating parameters an engine, a donor intake air temperature is controlled. A donor intake air flow restriction system is used to vary the flow of the donor intake air through an air to air aftercooler. A valve is operatively moved between a closed position and an open position. A controller interprets a respective signal from a plurality of sensors to define the position of the valve.

Abstract: Past pistons have been susceptible to reduced longevity due to increased forces of combustion thereon during operating cycles of an engine. The present two piece unitary piston increases the longevity of pistons used with increased forces of combustion. For example, a head member has a bottom surface and a support surface. And, a skirt member defines an upper outer support surface and an upper inner support surface. The head member and the skirt member have a preestablished material strength being generally the same. The head member and the skirt member are joined at an interface of the bottom surface and the upper outer support surface and the interface of the support surface and the upper inner support surface respectively by a welding process. The force of combustion acting on the crown portion is resisted by the upper outer support surface being in contacting relationship with the bottom surface.

Abstract: An apparatus and method for positioning a first piece relative to a second piece in a predefined position is disclosed. This apparatus has a tab and a slot. The tab projects from one of the first piece and the second piece and defines a preestablished configuration having a plurality of surfaces. The slot is positioned in the other one of the first piece and the second piece and defines a preestablished configuration having a plurality of surfaces. At least one of the plurality of surfaces of the tab and of the slot is defined by a generally arcuate configuration. At least one of the plurality of surfaces of the tab is in a frictional contacting relationship with at least one of the plurality of surfaces of the slot.

Abstract: Past exhaust emission control systems fail to utilize exhaust gas recirculation during all operating parameters of an engine. The present exhaust gas recirculation system reduces the emissions emitted from an engine during all operating parameters of the engine. The engine has a cylinder, a rotatable crankshaft and a turbocharger defining a compressor section compressing a flow of intake air to a first preestablished pressure and being driven by a flow of exhaust gas having a first preestablished pressure. The exhaust gas recirculation system is comprised of a portion of the flow of exhaust gas being recirculated back to the cylinder and forming a flow of exhaust gas recirculation. The flow of exhaust gas recirculation is cooled. The flow of exhaust gas recirculation is mixed with exhaust gas and compressed to a second preestablished pressure by the positive displacement pump.

Abstract: A slip joint for an engine exhaust system having a male and female manifold section which utilizes a sleeve assembly that is disposed about one of the manifold sections. The sleeve assembly has a positioning portion and locating portion. The positioning portion is in sealing engagement with one of the manifold sections and the locating portion is in resiliently sealing engagement with the other manifold section. The principle use is for exhaust manifold connections, however any joint that has thermal expansion or encounters vibrational loads will benefit from this invention. For example, exhaust gas recirculation systems may have passages connected with this invention.

Abstract: An elastomeric belt laying vehicle is disclosed for transmitting greater tractive effort to the earth as compared to comparably powered wheel vehicles and being operable at high speed on improved road surfaces without inflicting damage thereto. A pair of the wheels are arranged on each lateral side of the vehicle's chassis for support thereof. An inextensible, endless belt is highly tensioned throughout its length, is entrained about each pair of wheels, and is frictionally, drivingly coupled to at least one wheel of each pair. The structure of the belt, structure of the wheels and cooperating components thereof ensure engagement therebetween, provides long service with minimum maintenance thereof, and supplies the necessary frictional couple to effectively transmit driving torque from the wheels to the belt.