Abstract: Transmission fluid is heated through a heat exchanger effective to transfer heat between transmission fluid of a transmission assembly and an exhaust gas feed stream of an engine.

Abstract: An exhaust-gas cooler for a motor vehicle is provided that includes a flow path which can be traversed by exhaust gas of an internal combustion engine and which has an inlet region and an outlet region for the exhaust gas, a housing which surrounds the flow path and which has at least one inlet and at least one outlet for a liquid coolant of a coolant circuit, wherein the coolant can flow around the flow path in order to cool the exhaust gas, and wherein the coolant circuit is formed as a main cooling circuit of the internal combustion engine of the motor vehicle, wherein the exhaust-gas cooler is arranged in the main cooling circuit in series with the internal combustion engine.

Abstract: A system and method for drying pulverized high moisture fuel for use in a selective catalytic reduction system equipped combustion system is provided. The combustion system includes a mill for pulverizing fuel, an air heater, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.

Abstract: A vehicle control device applied to a vehicle including an internal combustion engine and an electrically heated catalyst which is warmed by applying a current, and includes a catalyst carrier supporting a catalyst and a carrier retention unit that retains the catalyst carrier and has an electrical insulation property. The control unit performs a control of suppressing a supply of an unburned gas from the internal combustion engine to the electrically heated catalyst so that the carrier retention unit is maintained at a lower temperature than the catalyst, when a condition for performing a fuel cut of the internal combustion engine during a deceleration is satisfied. Therefore, it is possible to suppress a rapid cooling of the catalyst, and it becomes possible to maintain a temperature of the carrier retention unit at a lower temperature than a temperature of the catalyst.

Abstract: A catalyst overheat prevention apparatus has a temperature obtaining portion that estimates a convergence temperature of a catalyst provided in the exhaust system of an internal combustion engine and the present temperature of the catalyst. The catalyst overheat prevention apparatus also has a fuel increment calculation portion, a comparison portion, a correction portion, and a fuel increment setting portion, which are used to execute OT fuel increase control when the convergence temperature and present catalyst temperature obtained by the temperature obtaining portion are equal to or higher than an OT determination temperature. The catalyst overheat prevention apparatus also has a present temperature correction portion that corrects the present catalyst temperature to be equal to the OT determination temperature when the present catalyst temperature is equal to or higher than the OT determination temperature and the convergence temperature is equal to the OT determination temperature.

Abstract: A heat transfer method for an engine is disclosed herein utilizing a heat battery configured to store waste exhaust heat in phase-chase materials for use during a subsequent engine start. By reusing waste exhaust heat in this manner, exhaust emissions may be reduced, and delays in heating the vehicle cabin and other vehicle systems after engine start may be reduced.

Abstract: A method and system for monitoring a three-way catalyst cooled by a coolant and treating internal combustion engine exhaust by oxidizing HC and CO and reducing NOx is provided to prevent false-fail monitoring. An initial lean kick excursion of fuel-air ratio Phi is provided prior to the first reducing step or interval of the first cycle.

Abstract: An exhaust system for an internal combustion engine is provided. The engine comprises an exhaust line, at least one exhaust gas aftertreatment device arranged in the exhaust line, and a heat source and a heat sink arranged in separate branches of the exhaust line upstream of the exhaust gas aftertreatment device, an exhaust gas flow rate through each respective separate exhaust branch controlled by at least one flow control device. In this way, the temperature of the exhaust entering the aftertreatment device may be controlled by an amount of exhaust that flows through each branch of the exhaust line.

Abstract: A thermoelectric generator apparatus of a vehicle, may include a high temperature member installed on an external wall of the exhaust pipe inside a silencer of the vehicle and exchanging heat with the exhaust gas, a low temperature member installed on the external wall of the exhaust pipe and at a side of the high temperature member, and a thermoelectric module formed by joining a P-shaped semi-conductor and an N-shaped semi-conductor, wherein the thermoelectric module may be installed on the external wall of the exhaust pipe between the high temperature member and the low temperature member so that a side thereof may be heated by the high temperature member and the other side thereof may be cooled by the low temperature member in order to use a thermoelectric phenomenon caused by a temperature difference between the side and the other side of the thermoelectric module to generate electricity.

Abstract: Various systems and method for heating an engine in a vehicle are described. In one example, intake air flowing in a first direction may be heated via a gas-to-gas heat exchange with exhaust gases. The heated intake air may then be used in a subsequent gas-to-liquid heat exchange to heat a fluid circulating through the engine. In another example, intake air flowing in a second direction may be heated via a heat exchange with exhaust gases in order to cool an exhaust catalyst.

Abstract: An exhaust diluting and diffusing apparatus includes a first pipe forming a vertically directed outlet for an exhaust conduit and a second diffuser pipe mounted to receive an exhaust gas flow from the outlet of the first pipe, the second pipe having a diameter greater than the diameter of the first pipe to define an ambient air inlet gap surrounding the outlet of the first pipe, and being sufficiently wide to allow the exhaust gas to expand and diffuse in the second pipe. The device further includes a dispersing outlet mounted at an end of the second pipe and configured to direct exhaust gas radially outward, an area defined by the diffuser outlet being greater than an area of the outlet of the first pipe.

Abstract: A method for operating a liquid reductant injection system is provided. The method includes storing a reductant mixture of ethanol, water, and urea; drawing the stored mixture into an electrically heated pick-up tube for delivery via a delivery line to the exhaust by operating a pump in a first direction; and, clearing a return line that returns the stored mixture or the delivery line by operating the pump in a second, reverse, direction. In this way, by including ethanol in the reductant solution, a freezing point temperature of the liquid reductant may be reduced.

Abstract: Some embodiments provide a waste heat recovery apparatus including an exhaust tube having a cylindrical outer shell configured to contain a flow of exhaust fluid; a first heat exchanger extending through a first region of the exhaust tube, the first heat exchanger in thermal communication with the cylindrical outer shell; a second region of the exhaust tube extending through the exhaust tube, the second region having a low exhaust fluid pressure drop; an exhaust valve operatively disposed within the second region and configured to allow exhaust fluid to flow through the second region only when a flow rate of the exhaust fluid becomes great enough to result in back pressure beyond an allowable limit; and a plurality of thermoelectric elements in thermal communication with an outer surface of the outer shell.

Abstract: A heat exchanger (7) for an exhaust system (5) of an internal combustion engine (1), includes a heating tube (16) for carrying hot exhaust gas and a cooling tube (17) for carrying a liquid cooling agent. A thermoelectric generator (13) generates an electric voltage from a temperature difference and is arranged with the adjacent tubes in a stacking direction (18) to form a stack (21). A support tube (28) is supported in the stacking direction on wall sections (29) of the respective tube (16, 17), which wall sections mutually face each other, and is arranged in the respective heating tube (16) and/or cooling tube (17). Increased energy efficiency is achieved if at least two support tubes (28), which differ from one another by tube length and/or tube end (30) and/or by tube cross sections, are arranged in the respective tube (16, 17) at right angles to a longitudinal direction (31).

Abstract: An exhaust system for a marine engine comprising liquid-cooled manifold and catalytic converter assemblies. Each assembly uses a separate cooling system to cool either the exhaust manifold or a shell inside which resides the catalytic converter. The housing or shell containing the catalytic converter uses water to cool an exterior surface of a water jacket to an acceptable temperature conforming to federal regulations. The liquid-cooled manifold assembly may use either water or glycol to cool outer cooling tubes surrounding exhaust tubes extending from the engine block to the catalytic converter assembly.

Abstract: An exhaust gas routing device for an internal-combustion engine having a thermoelectric generator is fluidically connected with an exhaust gas line and a pipe guiding a coolant. The generator has a plurality of thermoelectric yoke pairs which are arranged between a first surface heated by the exhaust gas and a second surface cooled by the coolant. The exhaust gas routing device has a device guiding the exhaust gas along the first surface at a flow velocity that increases in the flow direction of the exhaust gas.

Abstract: A system for quick warm-up of a motor vehicle includes a housing, a heat collector, and a valve mechanism. The housing includes an input port and an output port, and defines a first exhaust flow path between the input port and the output port. The heat collector is in fluid communication with the housing and defines a second exhaust flow path. The heat collector includes an inlet and an outlet and further defines a fluid path between the inlet and the outlet. The valve mechanism is disposed within the housing and is operable to control the flow of exhaust between the first exhaust flow path and the second exhaust flow path.

Abstract: A method is introduced for heating an exhaust-gas aftertreatment system (15). The method has the following steps: detection of a necessity to heat (S1) the exhaust-gas aftertreatment system (15), and actuation (S5) of an electric motor (5) in such a way that the electric motor (5) drags the internal combustion engine (3) which produces exhaust gas. Here, the internal combustion engine (3) is held at a predefinable rotational speed by the electric motor (5).

Abstract: An exhaust processing assembly for an exhaust generating device, the exhaust processing assembly comprising one or more cartridges, each of the cartridges including a housing and a constituent housed in the housing and capable of at least partially removing carbon dioxide from the exhaust of the exhaust generating device, said constituent being one or more of a solid absorber and any other constituent, wherein the cartridges are one of: removable from the exhaust processing assembly and replaceable with other like cartridges, and refillable with new constituent.

Abstract: A system for quick warm-up of a motor vehicle having an engine, an exhaust system and a passenger cabin includes a heat collector disposed in the exhaust system downstream of the catalytic converter. The system additionally includes a heater core in the passenger cabin. The heater core is in fluid communication with the heat collector for receiving a heated fluid from the heat collector. The system further includes an expansion tank for receiving fluid from the heater core. The expansion tank is located below the heat collector such that fluid drains from the heat collector back to the expansion tank solely under gravitational force. The heat collector may be combined with a resonator or with a muffler. The heater core may be a combined heater core that extracts heat from both the exhaust system and the engine.

Abstract: Thermoelectric devices, intended for placement in the exhaust of a hydrocarbon fuelled combustion device and particularly suited for use in the exhaust gas stream of an internal combustion engine propelling a vehicle, are described. Exhaust gas passing through the device is in thermal communication with one side of a thermoelectric module while the other side of the thermoelectric module is in thermal communication with a lower temperature environment. The heat extracted from the exhaust gasses is converted to electrical energy by the thermoelectric module. The performance of the generator is enhanced by thermally coupling the hot and cold junctions of the thermoelectric modules to phase-change materials which transform at a temperature compatible with the preferred operating temperatures of the thermoelectric modules.

Abstract: A unit (1, 1?) for recovering and converting thermal energy from the exhaust gases of an internal combustion engine (14) of a vehicle comprises a heat exchanger (2, 2?) to be traversed by exhaust gases flowing along a by-pass path (5,5?) branching out from an exhaust gas main line (4) of said internal combustion engine (14) and valve means (12) for controlling the flow of the exhaust gases through said path, said valve means (12) being driven by an actuator device (12A). The by-pass path (5, 5?) is a U-shaped path defined entirely within the heat exchanger (2, 2?), starting from an inlet section (6, 6?) and ending at an outlet section of the heat exchanger, the inlet and outlet sections (7,7?) being located on a same side of the heat exchanger (2) and both opening on an interface conduit portion (3) interposed in said exhaust gas main line (4).

Abstract: A system for reversing heat transfer from an exhaust system assembly on a vehicle comprising an engine block assembly and transaxle assembly operatively connected and located in an engine compartment of an automobile. The system comprises a number one exhaust manifold stay mount, a number two exhaust manifold stay mount, and a front exhaust collector pipe bracket and stay mount. The system comprises an exhaust system with a front exhaust collector pipe located beneath the engine block assembly. The system comprises an engine block assembly heat shield with a cross-section generally comprising the shape of a “U” that is located next to the surface of the engine block assembly. The engine block assembly heat shield is located over and overlays the front exhaust collector pipe bracket and stay mount, the number one exhaust manifold stay mount, and the number two exhaust manifold stay mount.

Abstract: A waste heat recovery system for use with an engine. The waste heat recovery system receives heat input from both an exhaust gas recovery system and exhaust gas streams. The system includes a first loop and a second loop. The first loop is configured to receive heat from both the exhaust gas recovery system and the exhaust system as necessary. The second loop receives heat from the first loop and the exhaust gas recovery system. The second loop converts the heat energy into electrical energy through the use of a turbine.

Abstract: An after treatment device includes a housing defining an inlet and an outlet. The after treatment device also includes a core positioned substantially within the housing. The core is configured to treat a fluid. The after treatment device further includes a heat exchanger positioned substantially within the housing and about at least a portion of the core. The heat exchanger includes a first passage substantially surrounding the at least a portion of the core and configured to direct untreated fluid from the inlet toward the core, and a second passage substantially surrounding the at least a portion of the core and configured to direct treated fluid from the core toward the outlet.

Abstract: An engine exhaust component is provided. The engine exhaust component may include a plurality of coolant passages having parallel coolant flow, each coolant passage at least partially surrounding a respectively corresponding exhaust runner. The engine exhaust component may further include a coolant inlet manifold coupled to each of the coolant passages and a coolant outlet manifold coupled to each of the coolant passages. In this way, more even and controlled cooling can be provided.

Abstract: A waste heat recovery (WHR) system operates in a reverse mode, permitting using the WHR system to transfer heat to the exhaust gas of an internal combustion engine. In another configuration, a WHR system may operate in two modes. The first mode removes heat from exhaust gas of an engine to perform useful work. The second mode transfers heat to the exhaust gas. The benefit of this flexible system is that a WHR system is adaptable to rapidly heat exhaust gas at startup and during other conditions where the temperature of the exhaust gas is less than a predetermined operating range. Because of the ability to rapidly warm engine exhaust gas, an exhaust gas receiving system, such as an EGR or an aftertreatment system, may function to reduce the emissions of the engine more quickly. Because this system is reversible, it retains the capability of a conventional WHR system.

Abstract: Apparatus constituting part of an induction and fuel delivery system for a cylinder of a piston internal combustion engine comprising a small cyclone into which is tangentially discharged a flow of heated air to generate a sustained vortex of high rotational speed; a modulatable fuel injector delivering a flow of atomized fuel into said small cyclone wherein it underdoes flash evaporation and energetic mixing; a delivery duct connecting said small cyclone to the inlet tract of said cylinder wherein said vortex fuel-air mixture is mixed with heated induction air; and means to prevent overheating of said modulatable fuel injector.

Abstract: A transmission fluid heater for a motor vehicle includes a fluid pan mounted on the transmission for storing a supply of transmission fluid. The fluid pan has an inner chamber storing the transmission fluid, and an outer chamber surrounding the inner chamber. An inlet to the outer chamber communicates with a source of engine exhaust gas and an outlet from the outer chamber exhausts the exhaust gas. An inlet valve opens and shuts the communication of engine exhaust gas to the inlet. A plurality of heat exchanger fins enhancing the transfer of heat from the engine exhaust gas within the outer chamber to the transmission fluid is stored within the inner chamber.

Abstract: In an exhaust train for an internal combustion engine having an integrated thermoelectric generator, the exhaust train has at least one duct, through which exhaust gas flows and in which at least one thermoelectric module is arranged in such a way that the hot side of the thermoelectric module is in direct contact with the exhaust gas, while the cold side of the thermoelectric module is cooled by means of a heat transfer medium.

Abstract: A device for reducing corrosive constituents in an exhaust gas condensate of an internal combustion engine is provided, in which the exhaust gas of the internal combustion engine is recirculated to the internal combustion engine via an exhaust gas recirculation system having an exhaust gas cooler and at least one exhaust gas recirculation line. To protect the exhaust gas recirculation system along with intake air components and the internal combustion engine from the corrosive effects of the exhaust gas condensate, the exhaust gas recirculation system has at least one neutralization unit for neutralizing the corrosive constituents of the exhaust gas condensate, which is connected to at least one component arranged downstream, through which the exhaust gas, which has been freed of nearly all corrosive constituents, flows.

Abstract: A method for providing a reducing agent-containing gas flow in the exhaust system of an internal combustion engine includes providing at least one reducing agent precursor, evaporating the precursor to provide a gas flow, at least partially heating the gas flow to temperatures of at least 250° C., at least partially converting the precursor in the gas flow to a reducing agent and adding the reducing agent-containing gas flow to the exhaust of the engine. The method and a device provide a reducing agent-containing gas flow in a quantity being easily controllable and adaptable to dynamic changes especially in exhaust systems of mobile applications such as automobiles. A temperature of a first zone is kept at 150° C. or just below while a temperature of a second zone is kept at more than 300° C. A hydrolysis catalytic converter is hardly cooled upon receiving the precursor as a vapor, positively affecting the method.

Abstract: A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.

Abstract: The present invention relates to an arrangement for the heat transfer between a tubular body suitable for conducting a fluid and a contact body that is in contact with said tubular body, wherein the contact body comprises a contact side facing the tubular body, with which the contact body is in contact with an outside of the tubular body facing the contact body, wherein in a tensioned state of the arrangement a preload force presses the contact body against the tubular body in a preload direction.

Abstract: An apparatus is provided for application to a waste heat reuse system that recovers and reuses engine waste heat, and for controlling the amount of waste heat based on a requested heat amount of a heat utilization request. In the apparatus, an overlap angle between a valve-opening period of an intake valve and that of an exhaust valve of the engine is controlled based on an engine driving condition. Ignition timing of the engine is controlled to fall on maximum-efficient timing that minimizes fuel consumption in a current engine driving condition. When a requested heat amount cannot be satisfied, overlap-increase control is performed to increase an overlap angle, and ignition advance control is performed to advance ignition timing with reference to a maximum-efficient timing that corresponds to the increased overlap angle. Waste heat amount of the engine is controlled with the overlap-increase control and the ignition advance control.

Abstract: An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit.

Abstract: An internal combustion engine is coupled to an electric power generator. An exhaust manifold for the engine includes an exhaust gas conduit. A housing includes a catalyst in fluid communication with the conduit to receive exhaust produced by the engine. The catalyst is operable to reduce one or more constituents of the exhaust.

Abstract: Provided is a composite absorption type heat pump device, including an exhaust gas flow path unit, a regenerator, a condenser, an evaporator, an absorber, and a cooler, in which the regeneration unit includes an exhaust heat recovery unit which includes an exchange unit which is communicated with the exhaust gas flow path unit and to which the exhaust gas flows in, and a mixed solution flow path unit which is thermally connected to the exchange unit and through which the mixed solution flows, and heats the mixed solution by performing heat exchange of the exhaust gas and the mixed solution and condenses vapor contained in the exhaust gas to obtain a condensed water, and a cooling unit which evaporates the condensed water obtained in the exhaust heat recovery unit, in the cooler.

Abstract: A sound attenuating heat exchanger for an internal combustion engine includes a housing, a barrier wall and a fin. The housing includes an exhaust inlet, an exhaust outlet, a coolant inlet and a coolant outlet. The exhaust inlet is connected to the exhaust outlet by an exhaust flow passage. The coolant inlet is connected to the coolant outlet by a coolant flow passage. The barrier wall fluidly separates the exhaust flow passage from the coolant flow passage. The fin extends from the barrier wall into the exhaust flow passage, and includes a resonator adapted to attenuate sound waves traveling through exhaust gas within the exhaust flow passage. The barrier wall and the fins are adapted to exchange heat energy between the exhaust gas flowing through the exhaust flow passage and coolant flowing through the coolant flow passage.

Abstract: A method for controlling an engine having an exhaust gas heat exchanger includes measuring air mass flow, engine coolant temperature (ECT), exhaust gas temperature (EGT), heat exchanger coolant temperature (HECT), and engine speed; and operating a valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed. A vehicle has an engine and an exhaust heat recovery system with an exhaust gas heat exchanger and a valve configured to control exhaust gas flow. A controller for the vehicle is configured to (i) measure air mass flow, ECT, EGT, HECT, and engine speed, and (ii) operate the valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed.

Abstract: A method for controlling a vehicle having an engine with an exhaust heat recovery system, includes generating a signal to control exhaust gas flow through an exhaust gas heat exchanger, and generating a diagnostic code based on the signal and a rate of change of coolant temperature. A vehicle has an engine and an exhaust heat recovery system with an exhaust gas heat exchanger and a temperature sensor. A controller for the vehicle is configured to (i) generate a signal to control exhaust gas flow through the exhaust gas heat exchanger, and (ii) generate a diagnostic code based on the signal and a rate of change of coolant temperature.

Abstract: A cooler arrangement comprising a charge air cooler which comprises at least one first pipeline for guiding compressed air during cooling and a tank which receives the cooled compressed air via an outlet aperture from the first pipeline, and an EGR cooler which comprises at least one second pipeline for guiding exhaust gases during cooling and a tank which receives the cooled exhaust gases from an outlet aperture of the second pipeline. The cooler arrangement comprises a tubular element extending from the EGR cooler's tank to the charge air cooler's tank. The tubular element has an outlet aperture for exhaust gases which is situated downstream of the most downstream outlet aperture in the charge air cooler's tank with respect to the main direction of flow of the air in the tank.

Abstract: An energy harvesting system comprises a first region having a first temperature and a second region having a second temperature. A conduit is located at least partially within the first region. A heat engine configured for converting thermal energy to mechanical energy includes a shape memory alloy forming at least one generally continuous loop. The shape memory alloy is disposed in heat exchange contact with the first region and the second region. A carrier surrounds the conduit such that the carrier is driven to rotate around the conduit by the shape memory alloy in response to the temperature difference between the first region and the second region.

Abstract: An exhaust gas treatment apparatus for a construction machine is provided, which is connected to a diesel particulate filter trap (DPF) to discharge exhaust gas from an engine to outside through the DPF. The exhaust gas treatment apparatus for a construction machine includes a tail pipe main body provided with a plurality of ventilation holes penetratingly formed on the tail pipe main body to allow the outside air to pass through the ventilation holes, and installed on an outlet of the DPF; an exhaust heat dissipation unit provided with a plurality of tubes which respectively communicate with the ventilation holes, and are installed in a horizontal direction of the tail pipe main body; and a plurality of exhaust holes located in a longitudinal direction of the tubes and penetratingly formed in an exhaust gas discharge direction.

Abstract: A method and system are described for on-board treatment of an exhaust stream containing CO2 emitted by a hydrocarbon-fueled internal combustion engine (ICE) used to power a vehicle in order to reduce the amount of CO2 discharged into the atmosphere which include: a.

Abstract: To effectively utilize exhaust heat of an engine mounted on a vehicle. An exhaust heat utilization system includes a working fluid heating tank (11) mounted on a truck (10) driven by an engine (12) and configured to heat a working fluid (30) stored therein with exhaust heat of the engine (12) and a heater (26) configured to heat a greenhouse (25) with the working fluid (30) heated by the working fluid heating tank (11). Exhaust heat recovered from the truck (10) is utilized for the heating of the greenhouse (25).

Abstract: An assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines, wherein the exhaust is acted upon in a first stage catalytic converter. A first portion of the first stage catalytic converter output is cooled and a second portion of the catalytic converter output is not cooled. The cooled and not cooled exhausts are united and directed to a second stage catalytic converter. Air is injected into a selected one of (1) the not cooled exhaust prior to the juncture thereof with the cooled exhaust, and (2) the combined cooled and not cooled exhausts after the juncture thereof.

Abstract: An exhaust system for a machine is disclosed. The exhaust system may have a first conduit configured to receive a first portion of an exhaust flow from an engine. The exhaust system may further have a second conduit configured to receive a remaining portion of the exhaust flow from the engine. The exhaust system may also have a diffuser connected at downstream ends of the first and the second conduits. In addition, the exhaust system may have an after-treatment component fluidly connected downstream of the diffuser. The exhaust system may also have a pre-heater configured to heat exhaust in the second conduit.

Abstract: A vehicle exhaust waste heat utilizing system includes a heating pipe mechanism heated by an exhaust device to boil raw water, a raw-water containing mechanism, a boiled-water conveying mechanism, and a boiled-water processing mechanism. The raw-water containing mechanism supplies raw water into the heating pipe mechanism. The boiled-water conveying mechanism conveys boiled water flowing from the heating pipe mechanism. The boiled-water processing mechanism receives and stores the boiled water flowing from the boiled-water conveying mechanism.

Abstract: An exhaust heat recovery system (EHRS) for a vehicle is operable to direct exhaust heat to a vehicle transmission under certain operating conditions. In some embodiments, the EHRS may also direct exhaust heat to a heater for vehicle passenger compartment. Preferably, the EHRS is controllable to manage available exhaust heat according to vehicle operating conditions, by prioritizing the heat flow among the engine, the transmission, and the vehicle heater. The EHRS may also operate in a bypass mode during which exhaust heat is not directed to the engine, the transmission or the vehicle heater. A method of managing exhaust heat recovery on a vehicle having an EHRS is also provided.