Abstract: Fuel injectors used in present day applications are normally requiring high pressure injection, short injection times and split or modified injection. Thus, this type of injection inherently produces an excess of noise. The present fuel injector assembly (22) overcomes the above deficiencies by controlling the noise emitted from a fuel injector (33). For example, as an actuation system (27) operates the fuel injector (33) the noise created by the opening and closing of the fuel injector (33) is absorbed within an isolator (34). As the fuel injector assembly (22) is installed, the fuel injector assembly (22) is positioned within a bore (26) with the fuel injector assembly being in a second position (29). And, a plurality of fasteners (28) are tightened to a predetermined value moving the fuel injector assembly (22) into a first position (24).

Abstract: Past exhaust emission control systems have failed to clean the exhaust gas prior to mixing with the intake air. The present exhaust emission control system removes at least a portion of the exhaust constituents from a flow of exhaust gas prior to mixing with a flow of intake air. The present exhaust emission control system includes a control system for monitoring a operating parameter of an engine. The control system interprets the operating parameter within a controller and the controller causes an exhaust valve regulator to move between an open position and a closed position. Thus, the movement of the exhaust valve regulator infinitely between the open position and the closed position defines the quantity of flow of exhaust gas to be mixed with the flow of intake air and controls the emission, especially of NOx, being emitted from the engine depending on the operating parameters of the engine.

Abstract: Gas turbine engines have in the past attempted to control emissions by a variety of processes or in a variety of manners. For example, past systems have used water or steam injection, and gas turbine combustion systems have utilized a variety of approaches including premix systems and various fuel injector designs. The present system controls emissions by modulating air flowing through a fuel injector. The system utilizes a fuel injector having a passage defined therein in which a valve is positioned. The valve is movable between a maximum flow position and a minimum flow position. The valve is moved lineal by a lineal movement portion being activated by a cam portion, a ring gear and an actuating mechanism. Parameters of the gas turbine engine are monitored by a plurality of sensors, and interpreted by a computer which actuates the actuating mechanism and results in the fluid flow to a combustor section being controlled to meet preestablished emission parameters.

Abstract: Present gas turbine engines fail to effectively and efficiently position and locate the components making up the engine to more effectively improve engine cost, serviceability and efficiency. The present gas turbine engine utilizes an external central frame which enhances engine cost, serviceability and efficiency. For example, a front plate structure of the external central frame is removably attached to a combustor section, a rear plate structure of the external central frame is removably attached to a compressor section and a plurality of elongate tie members extend between the front plate structure and the rear plate structure.

Abstract: Present fuel injectors fail to be cost effective and with the complexity of recent fuel injectors tend to be labor intensive. The present fuel injector and method of making the fuel injector provides a cost effective fuel injector which reduces the labor intensiveness of manufacturing. The manufacturing of the fuel injector includes the separate formation of a first unitary component, a second unitary component and a third unitary component by individual castings. The unitary components are positioned relative one to another and welded forming the fuel injector having a preestablished configuration. The unitary components are individually cast and each include an as cast complex configuration verses a plurality of individual components being welded in subassemblies and into a final assembly.

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: An electromagnetic actuator for an electromagnetically actuated valve is disclosed. The actuator includes an electromagnet and an armature, the armature having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second fixed stop position in abutment with the electromagnet when the electromagnet is on. In addition, the actuator includes a resilient member adapted to bias the armature in the normally biased initial spaced apart first position, and a compliant member operably connected to the armature. The armature approaches the electromagnet when the electromagnet is on and compresses the compliant member until the armature reaches the fixed stop position.

Abstract: Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present header assembly when used with recuperators reduces the brittle effect of a portion of the ceramic components. Thus, the present header assembly used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present header assembly is comprised of a first ceramic member, a second ceramic member, a reinforcing member being in spaced relationship to the first ceramic member and the second ceramic member.

Abstract: Present gas turbine engines fail to effectively and efficiently control the emission emitted therefrom. Many existing systems estimate the amount of constituents emitted within the exhaust gas verses measuring the actual quantity of constituent emitted within the exhaust gas. The present exhaust gas monitoring system has the ability to measure the actual quantity of an emission constituent, such as carbon monoxide (CO), sends a signal to a control box, interprets the signal, sends a second signal to an actuation device controlling a fluid flow to the combustion section resulting in the controlling of emissions emitted from the gas turbine engine within the exhaust gas.

Abstract: A two cycle engine comprises an engine casing that defines a hollow piston cavity, a first gas passageway and a second gas passageway. The hollow piston cavity is separated from the first gas passageway by a valve seat. A piston is positioned in the hollow piston cavity and is moveable between a top position in which the second gas passageway is blocked to the hollow piston cavity, and a bottom position in which the second gas passageway is open to the hollow piston cavity. A gas valve member is positioned adjacent the valve seat and is moveable between an open position and a closed position relative to the valve seat. The gas valve member defines a nozzle outlet that opens directly into the hollow piston cavity. A needle valve member is positioned in the gas valve member and is moveable between an inject position in which the nozzle outlet is open, and a blocked position in which the nozzle outlet is blocked.

Abstract: The present automated system for carburizing a component decreases the energy used to manufacture the component. The operations of heating the component in a first heating apparatus, forging the component in a forge and transferring the hot forged component directly to a second heating apparatus having a controlled atmosphere, increasing the temperature of the component, absorbing carbon within the component to a predetermined surface carbon content and depth and directly transferring the component to a quenching chamber and quenching the component defining a heat treated component.

Abstract: Circular recuperators are used to increase the efficiency of gas turbine engines. The present circular recuperators is made of a plurality of cells. Each of the plurality of cells includes a plurality of components, such as, a plurality of sheets, a plurality of bars and guide strips. To more efficiently utilize the configuration of a primary surface circular heat exchanger or recuperator, the plurality of cells are manufactured to have a involute configuration. A fixture is used to position, hold and form the involute configuration. The fixture includes clamping device which positions and holds a base edge and the plurality of bars in a preestablished position and a forming member forms the remainder of the individual cells into the involute configuration. Corresponding ones of the base edges of individual cells form an inner diameter of the recuperator.

Abstract: A combination of an attachment, a power device and a quick-disconnect coupling device for attaching a variety of attachments to a stick includes a pair of brackets attached to the attachment, a frame assembly being attached to the power device and an activation device. The actuation device having a plurality of linkage members being positioned in a locked position when the power device is attached to the attachment and being in an open position when not being attached to the attachment. The linkage members including a latch having a pair of ends being spaced apart and in the locked position being in contacting relationship with the each of the pair of brackets.

Abstract: A spool valve comprising a body portion with a general center bore, three annular chambers and a seal land between adjacent chambers, a spool portion slidably disposed in the bore and having two semicircular circumferential grooves to form a spool land associated with each of the chambers, the spool lands and seal lands being so disposed that when the spool is in a first position the annular chamber on one end is in fluid communication with the center chamber and the spool land associated with the one end chamber and the spool land associated with the center chamber are equidistant from the adjacent seal land and the other seal land and the spool land associated with the chamber on the other end cooperates with the other seal land to form a seal between the center chamber and the other end chamber and when in a second position the annular chamber on other end is in fluid communication with the center chamber and the spool land associated with the other end chamber and the spool land associated with the center

Abstract: The control systems for reducing NOx in the combustion systems of past gas turbine engines has incorporated a variety of expensive and complicated techniques to reduce the NOx level. For example, such systems use schemes for introducing more air into the primary combustion zone, recirculating cooled exhaust products into the combustion zone and injecting water spray into the combustion zone. The present system reduces the formation of NOx within the combustion zone by controlling the air/fuel ratio and more explicitly by controlling the air portion of the air/fuel ratio. The present system includes a device for directing a portion of the flow of compressed air exiting a compressor section into an injection nozzle and into a combustor, a device for reducing the flow of compressed air into the combustor.

Abstract: Present reaction arms for use with an endless belt fail to adequately disperse the debris from the drive wheel and the endless belt. The present reaction arm includes a cushioning member interposed a first end and an outer surface of a center portion of a hub assembly. And, the reaction arm includes a second end being attached to a chassis of a work machine. The reaction arm is axially positioned within a pair of sides of an endless belt and is generally centered along an axis defined by the pair of sides.

Abstract: A braking control for an engine permits the timing and duration of exhaust valve opening events to be accurately determined independent of engine events so that braking power can be precisely controlled. According to one embodiment, further control over braking power can be accomplished by controlling turbocharger geometry.

Abstract: Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present header assembly when used with recuperators reduces the brittle effect of a portion of the ceramic components. Thus, the present header assembly used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present header assembly is comprised of a first ceramic member, a second ceramic member, a strengthening reinforcing member being in spaced relationship to the first ceramic member and the second ceramic member.

Abstract: Rollers used in the past have usually been cushioned by the attachment system. The present cushioned roller includes the cushioned member being an integral part of the roller. For example, the unique roller includes a pair of individual shell portions positioned at the ends of a shaft. The shaft and a collar which is mounted to a chassis includes a cushioning member positioned therebetween the shaft and the collar. The pair of individual shell portions are separately rotatable about the shaft and the rollers are isolated from the chassis and the rollers can osculate about the chassis. Thus, the roller is free to isolate about the chassis and each of the pair of individual shell portions are in contact with each of the inner portion and the outer portion of the inner surface of the belts. Furthermore, impact loads are absorbed by the cushioning member and increase the longevity of the roller and provide a better ride for the operator.

Abstract: Past gas turbine engines have been manufactured with a variety of systems which have attempted to compensate for the varying radial clearance or interface between a tip of a turbine blade and a surrounding shroud. Such systems have engineered in large clearances, utilized special tips on blades and provided abradable structures. The present system controls a radial clearance or an interface or spaced distance between a tip of a blade and a stationary shroud. The system includes an introduction of a cool fluid or a hot fluid flow or a combination of cool fluid and hot fluid into a support case cavity. The flow is controlled by modulating a flow control apparatus and controlling the expansion of a nozzle support case and a stationary shroud relative to the position of the tip of the turbine blade. The system improves efficiency, longevity and operation of the gas turbine engine.