Abstract: A receptor for a Digital Radiographic system of the type having a digital camera 15, a lens 14, a phosphor screen 11, and a structural housing 10. The housing is constructed using a resin based composite with fiber or other reinforcement and may incorporate layers designed to affect the rigidity and structural integrity of the structure, alignment of the components, or to provide impervious protection of the optical path from foreign substances, light or other forms of radiation.

Abstract: A turbocharger having a heat insulating system whereby an aluminum bearing housing, its internal components including bearing assemblies and lubricating oil are insulated from the heat of the turbine. The insulating system includes three basic component parts. The first component part is a partially convoluted backplate interconnecting the bearing housing and the turbine housing. The second component part is an insulator situated next to the backplate and the third component part is a heat shield provided between the turbine wheel and the insulator. Between the backplate and the bearing housing is defined a cavity near the turbine shaft. Oil slingers are provided on the shaft within the cavity to create an oil-air mist when the shaft is rotated, thereby enhancing cooling.

Abstract: A cooling system for a liquid cooled engine comprises a first fluid line interconnecting the coolant exhaust port of an internal combustion engine and an exchange tank having a high pressure region and a low pressure region, a second fluid line interconnecting the high pressure region of the exchange tank and a heat exchanger, a third line interconnecting the heat exchanger and the inlet of a coolant pump attached to the coolant input port of the engine, and a fourth coolant line interconnecting the low pressure region of the exchange tank and the third line. The fluid contained within both the low and high pressure regions is of engine discharge temperature. By this arrangement the pressure maintained at the coolant inlet of the pump and the low pressure region of the exchange tank is equal. The low pressure region is preferably a tank situated within the high pressure region, thereby resulting with a tank being situated within a tank.

Abstract: An improved muffler system for internal combustion engines recovers heat energy of exhaust gases by spraying a fluid into the exhaust stream in order to absorb the heat energy of the exhaust gases. The heated fluid is collected at the bottom of the muffler vessel and the stored heat energy is transferred to a second fluid via a counter-current liquid to liquid heat exchanger. The heat energy from the second fluid is then removed and utilized, for example, to condition passenger spaces.

Abstract: A turbocharger housing comprises a central housing portion having means for rotatably supporting the turbocharger shaft and a pair of end housing portions adapted to be bolted to the central housing portion at mating annular surfaces of each housing portion. In one advantageous form of the present invention, the end housing portions include a recessed wall for defining a flow passageway adjacent a radially expanded wall portion of the central housing, and a plurality of vanes are integrally formed on the end housing portion to extend outwardly from the recessed wall toward a mating annular surface on the central housing portion. One or more sets of radially spaced mating annular surfaces provides a secure engagement between the end housing portions and the central housing portion. Moreover, the end plates are removably secured to the central housing portion so that the turbocharger mechanism can be removed as a unit with the central housing portion.

Abstract: A turbocompound engine having a stratified charge or diesel cycle rotary internal combustion engine, with a first output shaft and a turbine engine with a second output shaft. The first and second output shafts are coupled together so that the shafts rotate in synchronism with each other and provide a rotary output from the turbocompound engine. A valve variably directs air inducted into the engine between the turbine engine and internal combustion engine in dependence upon engine operating conditions.

Abstract: A turbocharger having a main housing with a throughbore in which a tubular bearing carrier is mounted. A main shaft having a turbine at one end and a compressor at its other end extends through the bearing carrier and is rotatably mounted to the housing by two spaced bearing assemblies. A lubrication system supplies lubricant to a squeeze film damper for hydrostatically damping the shaft vibrations and the discharge of the lubricant from the squeeze film damper is employed to lubricate the bearing assemblies.

Abstract: A turbocharger having a main housing with a throughbore through which a tubular bearing carrier is coaxially positioned. A shaft extends through the bearing carrier and is rotatably secured to the bearing carrier by a pair of axially spaced bearing assemblies, each having an inner race, an outer race and bearing elements entrapped therebetween. A pair of spacers are coaxially positioned around the shaft in between the bearing assemblies so that an outer axial end of each spacer abuts against the outer race of each bearing assembly. A helical compression spring in a state of compression urges the spacers axially away from each other to equalize the axial compressive load on each bearing assembly and thereby minimize bearing skidding and uneven wear.