Abstract: Method and apparatus for heating gases cooled by an aftercooler that receives hot gases from a compressor. The method includes the steps of directing at least a portion of said hot gases to means for bypassing the aftercooler, and using the bypass means to direct hot gases to a location that receives cooled gases from the aftercooler. The hot gases are used at the location to heat the cooled gases when ambient temperature is at or below freezing, and are used downstream from the aftercooler when moisture freezes in the aftercooler.

Abstract: In order to provide an intercooler assuming a simple structure that enables cooling of supercharging air and absorption of any expansion/contraction of the cooling water pipe and the casing attributable to the heat of the supercharging air, intake/outlet pipes of a heat exchanger housed inside a cooling space formed within a case are inserted at cylindrical pipe insertion portions formed at the case, and any gap present between the intake/outlet pipes and the insertion portions are sealed by seal members each constituted of an elastic material formed in a staged cylindrical shape having a first cylindrical portion placed in complete contact with one of the pipe insertion portions and a second cylindrical portion placed in complete contact with either one of the intake/outlet pipes, which are also utilized to fit the heat exchanger in the case with a gap.

Abstract: A system for a turbocharged internal combustion engine includes an engine having a charge inlet connected to the compressor outlet and an exhaust outlet connected to the turbine inlet for driving the turbocharger with hot exhaust gas and supplying compressed air to the engine for combustion. A bypass duct connects the compressor outlet to the turbine inlet for diverting a portion of the compressed air around the engine to the turbine inlet. A control member selectively controls the diversion of air. An operating method for the system involves controlling surge in an engine turbocharger compressor by diverting a portion of compressed air to the turbine inlet to limit compressor air pressure and insure sufficient air flow to avoid compressor surge. Preferably, the diverted air enters a distal part of an engine exhaust header for mixing with the exhaust gases prior to passing into the turbine inlet. Other benefits are disclosed.

Abstract: An air cycle system for use in a vehicle having an internal combustion engine is provided. A compressor has an outflow to an intercooler with an outflow to a first bypass valve. The first bypass valve has an open and a closed orientation, directing air to the engine of the vehicle in the open orientation and directing air to an expander in the closed orientation. The expander has an outflow to a second bypass valve that is adjustable so it can direct a variable fraction of air to the engine and the remainder of the air to an air handling unit. The air handling unit has at least a fan, a scroll center, and first and second air flow paths. The first air flow path has an input at the scroll center from the second bypass valve and the second air flow path has an input at the fan from the interior of the vehicle. The air handling unit mixes air from the first and second flow paths and directs the mixed air to the interior of the vehicle.

Abstract: An air cycle system for use in a vehicle having an internal combustion engine is provided. A compressor has an outflow to an intercooler with an outflow to a first bypass valve. The first bypass valve has an open and a closed orientation, directing air to the engine of the vehicle in the open orientation and directing air to an expander in the closed orientation. The expander has an outflow to a second bypass valve that is adjustable so it can direct a variable fraction of air to the engine and the remainder of the air to an air handling unit. The air handling unit has at least a fan, a scroll center, and first and second air flow paths. The first air flow path has an input at the scroll center from the second bypass valve and the second air flow path has an input at the fan from the interior of the vehicle. The air handling unit mixes air from the first and second flow paths and directs the mixed air to the interior of the vehicle.

Abstract: A self-ignition combustion engine has a control unit that controls the temperature of the intake air such that the operating load range of compression self-ignition combustion is expanded. In operating regions where cooling the intake air results in an intake air temperature that is too low and an inability to conduct self-ignition operation, the temperature of the intake air is raised by directing intake air that has been supercharged by a supercharger to a bypass passage so that it does not pass through an inter-cooler.

Abstract: An internal combustion engine with a mechanically driven charge-air compressor, which is connected to the engine intake manifold by way of an intercooler, is disclosed. The characteristic feature of the engine is that the compressor, the intercooler and the intake manifold have a common, integrally cast housing part.

Abstract: A heat exchange arrangement for a vehicle has at least two heat exchangers exposed to the action of ambient air. One of the heat exchanger is coolant cooler and the other one is a charge-air coolant. Each of these coolers has tubes through which liquid or gas flows and heat dissipating ribs connected to the tubes. The coolant cooler is positioned upstream of the charge-air cooler in the air-flow direction. The charge-air cooler has an overlapping region in which the coolant cooler and the charge-air cooler overlap one another and a non-overlapping region in which the coolant cooler projects substantially perpendicularly to the cooling air flow direction. The non-overlapping region is formed at least in the charge-air outlet region and is cooled directly by ambient cooling air. The overlapping region is cooled by the ambient cooling air that has passed through the coolant cooler, which is positioned immediately upstream of the overlapping region of the charge-air cooler.

Abstract: A cooling apparatus (10) and method for a turbocharged internal combustion engine (12). The combustion air (16) exiting a turbocharger (18) is passed over an air-to-water intercooler (40) then over an air-to-air intercooler (42) for heat exchange with liquid coolant and with ambient air (32) respectively. During periods of low ambient air temperature, the combustion air may be directed through a bypass duct (80) around the air-to-air intercooler, and further, may be heated by the coolant in the air-to-water intercooler. A multi-speed fan (44) and/or shutters (48) may be used to control the flow of ambient air across the air-to-air intercooler. A cooling duct (68) provides a flow of ambient air to the fan motor (46) during periods of operation when the flow of ambient air over the air-to-air heat exchanger is restricted by the shutters. Coolant exiting a subcooler (28) has the lowest temperature in the system and is directed to a lube oil cooler (34) for engine lubricant cooling.

Abstract: Pilot fuel injection and/or ignition are controlled in a pilot ignited, gas-fueled, compression ignition engine so as to maintain a relationship Dp/Di of <1, where Dp is the duration of the pilot injection event and Di is the ignition delay period as measured from the start of initiation of pilot fuel injection (Tp) to the start of pilot fuel autoignition (Ti). Dp/Di is less than 1 when a mixing period Dm exists between the end of pilot fuel injection and the start of autoignition. This mixing period permits the injected pilot fuel to become thoroughly distributed through and mixed with the gaseous fuel/air charge in the combustion chamber and vaporized prior to ignition, resulting in improved premixed burning of a heterogeneous mixture of the pilot fuel, the gaseous fuel, and air and dramatically reduced NOx emissions.

Abstract: A supercharged multi-cylinder piston engine includes an elongate air inlet manifold and multiple heat transfer elements located in the interior space of the air inlet manifold. The heat transfer elements extend individually over different respective length segments of the interior space of the manifold and extend collectively over substantially the entire length of the interior space of the manifold.

Abstract: A supercharged four stroke internal combustion engine. The engine includes a power take off housing located on one end of the crankcase. A supercharger for boosting air intake to an air intake manifold is mounted to the power take off and operatively connected to the crank shaft within the power take off housing. A personal watercraft having a supercharged engine is also disclosed.

Abstract: A air supplying structure for multi-cylinder engine comprising six pieces of high-pressure stage superchargers 51, six pieces of low-pressure stage superchargers 52, two pieces of intercoolers 63 arranged between the high-pressure stage and low-pressure stage superchargers, and six pieces of aftercoolers 62 arranged between the high-pressure stage superchargers and cylinders, in which each high-pressure stage supercharger 51 is connected with three pieces of cylinders, each aftercooler 62 is connected with each high-pressure stage supercharger 51, the two pieces of intercoolers 63 are arranged at opposite sides of the engine body 2 along the arranging direction of the cylinders, each intercooler 63 is connected with three pieces of low-pressure stage superchargers 52, and the three pieces of the low-pressure stage superchargers 52 are connected to the three pieces of cylinders in the right bank and the six pieces of cylinders in the left bank, which cylinders are arranged near the associated intercooler 63.

Abstract: A charge air management system for an automotive engine provides air charge densification and cooling during periods of operation at higher load. Two air ducts are provided, with a first for furnishing uncooled and unboosted air, and with a second duct for furnishing chilled and boosted air, with the second duct being chilled during operation with air flowing through the first duct.

Abstract: An enhanced split cooling system and method for a turbocharged internal combustion engine including a liquid cooled turbocharger 19 and an engine liquid coolant jacket 18, the system comprising a coolant pump 12 for pumping coolant from a coolant storage tank 16 in heat exchange relationship with the engine jacket 18 and turbocharger 19; an oil cooler 32 having coolant input and output lines; a valve assembly 74, 83 including a multi-port rotary valve actuated by a single actuator; a first coolant output line connected for conveying coolant from the engine to the valve assembly 74, 83; a radiator 22 connected via a second coolant line for receiving coolant from the valve assembly 74, 83 and having a coolant outflow line to return coolant to the coolant tank 16; an intercooler 28 operatively associated with the turbocharger 19 for passing the coolant in hear exchange relationship with compressed air in the turbocharger 19; a lube oil subcooler 46 coupled by a third coolant flow line to receive coolant from the

Abstract: Internal combustion engine (8), in particular a stationary gas engine, with a bypass (6) going around the super-charger (4), in which at least one detonation protector (11) is arranged.

Abstract: A cooling system has an air-to-air or first heat exchanger and a fluid or second heat exchanger mounted remotely from a main radiator for cooling an internal combustion engine. A filter filters a recipient fluid, such as an ambient air, before the recipient fluid passes through the first heat exchanger and the second heat exchanger. A cooled fluid is conducted to a flow of intake air for the internal combustion engine. A fan causes the recipient fluid to pass through the filter and the first heat exchanger and the second heat exchanger. The spent recipient fluid is discharged to atmosphere.

Abstract: The invention relates to a method for cooling the charge air of an internal combustion engine. The charge-air cooler is arranged with a pump and a heat exchanger in a coolant circuit. The temperature of the charge air is detected via a temperature sensor and passed on to a regulating unit. As a function of this temperature and, if appropriate, of further engine operating parameters, the regulating unit controls the pump and, if included, the fan of the heat exchanger. Thus, in particular, when the engine is started cold or at a partial load, a higher charge-air temperature can be permitted by switching off or throttle the pump and/or the fan. This not only better matches the charge-air temperature to the engine operation, but also saves on energy for the operation of the pump and/or the fan.

Abstract: An automatic condensed oil remover for an intercooler of a diesel engine has a flow restrictor that is positioned between the intercooler and the diesel engine, an oil sump in the intercooler, and an oil tube carrying condensed oil from the oil sump to the diesel engine. The flow restrictor creates a pressure drop sufficient to force the oil to flow from the oil sump through the oil tube to the diesel engine.

Abstract: A method for controlling an engine of a system having an air-charger system connected to the engine includes sensing air-charger system temperature; comparing the air-charger system temperature to a temperature threshold; and adjusting an engine control parameter when the air-charger system temperature exceeds the temperature threshold. A system for controlling engine operation is also provided.

Abstract: An air-cooled charge air cooler for vehicles with a coolant-filled pre-cooler oriented in an air collection tank of the charge air cooler. The pre-cooler is sized to contact a majority of the charge air entering the charge air cooler. The pre-cooler has flow paths carrying coolant between manifolds of the pre-cooler and the flow paths define channels therethrough to direct charge air through the pre-cooler and into a cooling grate of the charge cooler. The channels have a depth that allows for a corresponding adjustment in the length of the cooling grate of the charge air cooler while maintaining the overall space requirement for the charge air cooler in a vehicle and meeting the increasing performance requirements for such charge air coolers.

Abstract: A diesel engine with a supercharger, which hardly has an adverse effect on performance even if a fuel of inferior ignitability is used, is provided. For this purpose, the diesel engine includes a supercharger (1) for supplying pressurized supercharged air into a cylinder (31), and a heat exchanger, which is provided in a supercharged air passage from an outlet port of the supercharger to an inlet port of the cylinder, and the heat exchanger is a hybrid type of heat exchanger (2) including a first heat exchanger (2a) for carrying out heat exchange between the supercharged air from the outlet port of the supercharger and a first heat exchange medium, and a second heat exchanger (2b) for carrying out heat exchange between the supercharged air from an outlet port of the first heat exchanger and a second heat exchange medium having higher temperature than the first heat exchange medium.

Abstract: A charge air management system for an automotive engine provides air charge densification and cooling during periods of operation at higher load. Two air ducts are provided, with a first for furnishing uncooled and unboosted air, and with a second duct for furnishing chilled and boosted air, with the second duct being chilled during operation with air flowing through the first duct.

Abstract: Modified locomotive engine cooling systems are designed to reduce engine emissions and improve engine efficiency. The systems include separate main engine and turbocharger aftercooler coolant loops that are joined when extra engine cooling is required. Studies determined that by reducing and optimizing the aftercooler loop coolant flow rate, the amount of heat transfer from the engine inlet air to the radiator cooling air could be increased. Thus, a significant increase in aftercooling could be obtained by reducing the coolant temperature at the inlet of the aftercooler and this could be accomplished by reducing the rate of flow of coolant in the aftercooler loop. This improvement and how it may be applied in practice are fundamental features of the cooling system and method.

Abstract: A cooling apparatus (10) and method for a turbocharged internal combustion engine (12). The combustion air (16) exiting a turbocharger (18) is passed over an air-to-water intercooler (40) then over an air-to-air intercooler (42) for heat exchange with liquid coolant and with ambient air (32) respectively. During periods of low ambient air temperature, the combustion air may be directed through a bypass duct (80) around the air-to-air intercooler, and further, may be heated by the coolant in the air-to-water intercooler. A multi-speed fan (44) and/or shutters (48) may be used to control the flow of ambient air across the air-to-air intercooler. A cooling duct (68) provides a flow of ambient air to the fan motor (46) during periods of operation when the flow of ambient air over the air-to-air heat exchanger is restricted by the shutters. Coolant exiting a subcooler (28) has the lowest temperature in the system and is directed to a lube oil cooler (34) for engine lubricant cooling.

Abstract: In order to suppress any backfire with a high degree of reliability and reduce the required mounting space and the weight of an intercooler by achieving a flame arrester function in the intercooler mounted to cool supercharging air without having to provide a separate arrester device, the intercooler having a case through which the supercharging air passes through and a heat exchanger 4 that is mounted inside the case and engages in heat exchange between the supercharging air and a cooling fluid includes a frame body 15 provided at the circumferential edges of air passage portions of the heat exchanger 4 on a supercharging air intake side and a supercharging air outlet side to reduce the gap between the heat exchanger and the inner wall of the case.

Abstract: An outboard motor is provided with an engine having a screw compressor which provides a pressurized charge for the combustion chambers of the engine. The screw compression has first and second screw rotors arranged to rotate about vertical axes which are parallel to the axes of a crankshaft of the engine. A bypass valve regulates the flow of air through a bypass conduit extending from an outlet passage of the screw compressor to the inlet passage of the screw compressor. A charge air cooler is used in a preferred embodiment and the bypass conduit then extends between the cold side plenum of the charge air cooler and the inlet of the compressor. The charge air cooler improves the operating efficiency of the engine and avoids overheating the air as it passes through the supercharger after flowing through the bypass conduit.

Abstract: A self-ignition combustion engine has a control unit that controls the temperature of the intake air such that the operating load range of compression self-ignition combustion is expanded. In operating regions where cooling the intake air results in an intake air temperature that is too low and an inability to conduct self-ignition operation, the temperature of the intake air is raised by directing intake air that has been supercharged by a supercharger to a bypass passage so that it does not pass through an inter-cooler.

Abstract: An engine charge air cooler system including a charge air compressing system, a refrigerant cycling system, and a charge air cooling apparatus for transferring heat from the compressed charge air of the charge air compressing system to the refrigerant fluid of the refrigerant cycling system. The charge air cooling apparatus comprises a housing with a charge air passage for charge air moving through the housing. A plurality of fins are positioned in the charge air passage. A fluid tube is provided in the housing and passes through each of the fins in a plurality of locations. Preferably, the refrigerant compressor of the system is adapted to also compress a separate flow of refrigerant fluid for an air conditioning system of the vehicle in addition to the refrigerant fluid of the system of the invention. A heating element may be provided in the interior of the housing, and may be selectively heatable for preventing accumulated moisture from freezing in the interior of the housing in sub-freezing temperatures.

Abstract: A air supplying structure for multi-cylinder engine comprising six pieces of high-pressure stage superchargers 51, six pieces of low-pressure stage superchargers 52, two pieces of inter coolers 63 arranged between the high-pressure stage and low-pressure stage superchargers, and six pieces of after coolers 62 arranged between the high-pressure stage superchargers and cylinders, in which each high-pressure stage supercharger 51 is connected with three pieces of cylinders, each after cooler 62 is connected with each high-pressure stage supercharger 51, the two pieces of inter coolers 63 are arranged at opposite sides of the engine body 2 along the arranging direction of the cylinders, each inter cooler 63 is connected with three pieces of low-pressure stage superchargers 52, and these three pieces of the low-pressure stage superchargers 52 are connected to those three pieces of cylinders in the right bank and those six pieces of cylinders in the left bank, which cylinders are arranged near the associated inter

Abstract: This invention relates to an internal combustion engine, in particular of the self-igniting type, with a compressor, which is preferably connected to an exhaust gas turbine and is located in an intake flow passage for compression of the intake air, and with a charge air line leading to an intake manifold, the compressor operating independently of the engine, at least in the starting phase. To permit a quick and simple start-up of the engine at a low compression ratio the proposal is put forward that an air recirculation line controlled by a valve depart from the intake manifold, which opens into the intake flow passage upstream of the compressor, charge air line and air recirculation line forming a closed loop.

Abstract: An radiator and charge-air-cooling package made up of two air cooled heat exchangers: a radiator and a charge-air-cooler, the heat exchangers being attached to one another directly or indirectly and then attachable to a chassis or body of the vehicle. The two heat exchangers are both longer than wide with each having center cooling areas. Each heat exchanger has cooling cores in which their coolant flows. Air passes across these cooling cores when the vehicle moves to cool the coolant. The long sides of each of the heat exchangers are geometrically out of synch with the other. With the center cooling areas of each of the heat exchangers overlapping each other, at least one end of each heat exchanger may be unfettered by air flow the other heat exchanger.

Abstract: Disclosed is an intercooler system which uses an air conditioner evaporator coil or other mechanical refrigeration device to cool air flowing therethrough prior to intake of the air by an internal combustion engine. The invention thereby reduces the temperature of the air entering the engine well beyond the temperature reduction provided by a conventional intercooler. The invention may be used to chill the air to a point cooler than ambient temperature or even down to below freezing. In some embodiments, a conventional intercooler may be used to partially cool the air before it enters the intercooler of the invention. In other embodiments, the intercooler may be used in combination with a novel engine-driven supercharger having a variable-speed drive. The engine-driven supercharger of the invention may alternatively be used independently of the disclosed intercooler.

Abstract: Exhaust gas recirculation is provided in a turbocharged diesel engine by adding a separate EGR manifold and a secondary exhaust valve for each combustion chamber that permits passage of exhaust gas from the combustion chamber to the EGR manifold. The secondary exhaust valve is opened during the expansion stroke of the engine cycle and sometime after the combustion process has been completed while the pressure in the combustion chamber is still greater than the pressure in the intake manifold. One or two EGR valves can be opened to admit the high pressure exhaust gas from the EGR manifold into the intake manifold. Decompression braking can be provided by an additional valve between the EGR manifold and the exhaust manifold that is opened to dump the gas from the EGR manifold to the exhaust manifold while the secondary exhaust valve in the cylinder head is opened at the beginning of the expansion stroke of the piston whereby the compressed air in the cylinder escapes before performing work on the piston.

Abstract: A charge air cooler for internal-combustion engines, having at least two cooling circulations which are guided through heat exchanger blocks which are connected behind one another in the flow direction of the air and have different coolant temperatures. At least the heat transfer block provided as the first heat transfer block in the flow direction of the air is produced of a more erosion-resistant and temperature-stable material than the heat transfer block which fallow and is situated in la high-temperature coolant circuit in which the coolant temperature is selected to be as high as possible.

Abstract: An engine exhaust braking method and apparatus bypasses intake air around the intercooler from the turbocharger while simultaneously injecting a minimum amount or greater of fuel per stroke into an engine cylinder during engine brake operation. The minimum amount of fuel is determined such that it is the smallest amount of fuel which will fully combust when the engine is operating at a particular speed. The apparatus includes a combustion engine, a turbocharger, an intercooler, and a compression release braking system. The compression release braking system includes an engine or vehicle electronic control unit, a compression release brake controller, a fuel injector, and an intercooler bypass assembly, wherein while the engine brake is engaged, a small amount of fuel is injected into the cylinders during the compression stroke, and engine intake air is bypassed around the intercooler from the turbocharger and directly into the engine.

Abstract: A secondary air system 10 is proposed for an internal combustion engine, which has a turbine 11 driven by a pressure gradient in the intake air and a compressor 14 driven by the turbine 11. The turbine is connected by a turbine inlet line 12 and a turbine outlet line 13 to an air intake duct 20. The compressor 14 has a compressor inlet line 15 and a compressor outlet line 16. The cold produced by the turbine 11 is used by a turbine heat exchanger 17 and transport lines 27 for the cooling of, e.g., oil. The heat produced by the compressor 14 is used by a compressor heat exchanger 18 and the transport lines 27 connected thereto, e.g., for heating air.

Abstract: The invention provides a cooling apparatus for a vehicular engine which can improve the life of at least one of, an exhaust gas recirculation unit and an intercooler. With the cooling apparatus for a vehicular engine of the invention, then with a vehicular engine (an automobile in this example) provided with at least one of an exhaust gas recirculation unit (EGR) 50a and an intercooler 50 for a turbocharger 100, there is provided a radiator 9, and an electric pump 53 for circulating coolant to carry heat generated by at least one of the exhaust gas recirculation unit (EGR) 50a and the intercooler 50 to the radiator 9. When the automobile engine 3 is stopped, the operation of the electric pump 53 continues for a fixed period so that the coolant cooled by the radiator 9 is circulated to at least one of the EGR 50a and the intercooler 50b to provide cooling to thus rapidly reduce the temperature. The electric pump 53 is then stopped when a low temperature is reached.

Abstract: A system for providing cooling incorporates a combustion engine (1, 2) equipped with an exhaust heat recovering heat exchanger (3) which is adapted to transfer heat energy to a heat-driven chiller (4) in which cooling can be extracted from one or more heat carrier circuits (8). The cooling thereby provided may be used for cooling of engine charge air or compressor air and/or for providing cooled air for human comfort and/or for goods. Use of heat energy derived from the engine exhaust gas flow can be added to the system. Exhaust or air intake heat exchangers may provide silencing or gas cleaning of air or gas. The system may, e.g., be applied to vehicles. Compact absorption chillers may be used in the system. A method for providing cooling is disclosed.

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: An engine cooling system includes a two-pass radiator, a jacket water pump pumping coolant from the radiator to the engine, and an aftercooler for cooling engine charge air from a turbocharger. An aftercooler pump pumps coolant from the radiator to the aftercooler. An orifice can be disposed in the aftercooler discharge line to limit flow therethrough, and an orifice bypass line with thermostatic control valve can be provided to selectively bypass the orifice. A shunt tank is connected to the suction of the jacket water pump to establish a static pressure head thereon, to ensure that the jacket water pump has sufficient suction pressure despite relatively high coolant head loss through the two-pass radiator.

Abstract: An arrangement for cooling the temperature of a source of air prior to introduction into a motor vehicle engine includes an intercooler core and an intercooler housing. The intercooler core has a generally cylindrical shape. The intercooler housing defines an inner chamber receiving the intercooler core. The intercooler housing has an intake side with at least one intake port in communication with the intercooler core and an outlet side with at least one outlet port in communication with the intercooler core. The intake side and the outlet side are spaced apart and parallel.

Abstract: A low pressure EGR system suitable for use as a passive retrofit system is disclosed for moving vehicles equipped with a diesel engine. The EGR loop inlet is positioned upstream of the exhaust particulate filter and downstream of the turbine to utilize backpressure created by the exhaust particulate filter to insure EGR flow in the loop. A catalyzed soot filter in communication with the EGR pickup insures cleansed EGR gases at the EGR return downstream of the air filter and upstream of the compressor. A corrugated EGR line provides cooling of the EGR gases.

Abstract: An air bottoming powertrain, suitable for use in automobiles includes an internal combustion engine, a compressor which receives gaseous working fluid and compresses it to an elevated pressure, a cooler for operating the compressor isothermally, an expander for deriving work from the compressed gas and a heat exchanger located in the compressed gas line for indirect heat exchange between the compressed working fluid and exhaust gas from the internal combustion engine. The expander may have a cylindrical barrel with a plurality of cylinders arranged in the circle and open at one end face of the cylinder barrel, which end face is sealed closed by a valve plate. The cylinder barrel and valve plate allow relative rotation therebetween to drive an output shaft, driven by compressed gas from the compressor. An alternative expander is a Scotch Yoke piston motor which includes plural paired and axially aligned cylinders on opposing sides of an output shaft.

Abstract: The invention provides a charge air cooler, especially for motor vehicles, having a finned-tube block. The finned-tube block includes flat tubes through which charge air can flow and at least one fin member attached to the flat tubes. At least one fin member includes rows of webs and web crosspieces, the rows offset relative to each other by a predetermined distance. At least one web and/or one web crosspiece possesses at least one vortex generator.

Abstract: An aftercooler for a supercharged internal combustion engine for cooling supercharged air delivered to the internal combustion engine from the supercharger. The aftercooler has an air intake plenum with an air inlet for receiving supercharged air from the supercharger and an air outlet, a liquid-to-air heat exchanger unit, and a lower plenum for connection to the engine. The heat exchanger unit has an air intake side and an air outlet side, cooling liquid passageways and air passageways passing adjacent to the cooling liquid passageways to cool the supercharged air passing. The lower air inlet plenum has an air inlet for receiving cooled air from the liquid-to-air heat exchanger unit and directs the supercharged cooled air to an air outlet for connection to a cylinder head of an internal combustion engine.

Abstract: An air brake compressor supply fitting for an internal combustion engine having a turbocharger and an exhaust gas recirculation (EGR) system is located downstream of the turbocharger and upstream of where the exhaust gas is introduced into the intake air of the engine. The supply fitting can be integrated into an outlet manifold of a charge air cooler (CAC associated with the turbocharger or into an EGR mixer for mixing exhaust gas with the intake air of the engine at a location in the EGR mixer upstream from the location where the exhaust gas is introduced into the intake air of the engine.

Abstract: A system and method for controlling a turbocharged compression-ignition engine having an intercooling system that uses a predetermined coolant fluid is provided. The engine is configured to receive a predetermined combustion-supporting fluid into a plurality of cylinders through a respective intake manifold. The method allows for detecting a full or high load engine condition using the amount of fuel injected into a cylinder per cylinder cycle and/or throttle notch position. The method also allows for sensing a predetermined parameter indicative of a respective ambient condition. The method further allows for selecting a desired value of a predetermined operational parameter that influences peak pressures developed within the cylinders. The desired value being selected based on the value of the parameter indicative of the ambient condition. A comparing step allows for comparing an actual value of the operational parameter against the desired value of that operational parameter.

Abstract: A method and system for controlling a compression ignition engine in railroad locomotives and other land or marine-based large propulsion or power generation equipment operable in a selected one of a plurality of engine throttle notches is provided. Each throttle notch is indicative of a respective load condition of the engine. The engine has an intercooling system using a predetermined cooling fluid and the engine is configured to receive a predetermined combustion-supporting fluid (e.g., air) into a plurality of cylinders through respective intake manifolds. The method allows for sensing the selected throttle notch, and for selectively actuating the intercooling system to adjust a predetermined operational parameter (e.g., intake manifold air temperature) based on the sensed throttle notch and/or environmental conditions.

Abstract: A vortex tube is affixed in a first case to a turbocharger in an engine, in a second case to a supercharger in an engine, or in a third case to the intake manifold of an engine. A vortex tube includes an entry port, a cold exit port and a hot exit port. By employing different structural interconnections of the vortex tube with the turbocharger or supercharger, compressed air is cooled prior to entering the engine's intake manifold. The same effect is achieved when the vortex tube is affixed directly to the engine intake manifold. Additionally, the fuel may be heated or cooled, depending upon the specific fuel type utilized.