Entries |
Document | Title | Date |
20080276615 | Harmonic engine - A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line connecting an expansion chamber of the expander to a buffer chamber of the expander for minimizing pressure variations in the fluidic circuit of the engine. The engine is especially designed to operate with very high temperature input to the expander and very low temperature input to the compressor, to produce very high thermal conversion efficiency. | 11-13-2008 |
20090277172 | Engine Having a Turbocharger Coupler - A turbo assembly may include a coupling member, a heat shield, and a turbo mechanism. The coupling member may include first and second ends and an annular body extending between the first and second ends. The first end may fix the coupling member to an exhaust manifold of an engine and the annular body may define an exhaust gas channel that receives exhaust gas from the exhaust manifold. The annular body may include a coolant passage that receives a coolant fluid. The heat shield may extend axially within the exhaust gas channel and radially between the annular body and an exhaust gas flow within the exhaust gas channel to limit an amount of heat transferred from the exhaust gas to the annular body. The turbo mechanism may include a housing fixed to the second end of the coupling member and in communication with the exhaust gas channel to receive the exhaust gas therefrom. | 11-12-2009 |
20090282827 | Speed booster gas saving device - In the present invention disclosed an speed booster gas saving device that recovers exhaust energy of internal combustion engine, wherein the exhaust force and the heat energy of exhaust gases that is wasted is utilized, to superheat a device to transform water instantly into steam energy upon injected inside in addition to the exhaust force to drive a rotor blades connected to the propeller shaft or to the differential gear, to increase the driving torque, power and speed of a moving vehicle in addition to the engine power to reduce fuel burning and emission of exhaust in the environment. | 11-19-2009 |
20100011766 | DEVICE FOR RECOVERING ELECTRICAL ENERGY FROM THE EXHAUST HEAT OF A COMBUSTION ENGINE OF A MOTOR VEHICLE, AND METHOD FOR RECOVERING ELECTRICAL ENERGY FROM THE EXHAUST HEAT OF A COMBUSTION ENGINE OF A MOTOR VEHICLE - Device for recovering electrical energy from the exhaust heat of a combustion engine of a motor vehicle, with a heat exchanger, through which the exhaust gas of the combustion engine is to flow on the input side, and through which heat exchanger fluid, which in operation of the combustion engine is to be brought in the heat exchanger to a first, high temperature and/or pressure level, is to flow on the output side. The device has at least one Laval nozzle, which has an inlet and an outlet, the inlet of which is to be connected to an output-side outlet of the heat exchanger, the outlet of which is directed onto turbine blade wheels of a constant-pressure turbine, and which is dimensioned so that it loads the constant-pressure turbine with steam which has a lower second temperature and/or pressure level than the first, high temperature and/or pressure level and has a high flow velocity. The device also has an electrical generator, which has a rotor which is coupled to the constant-pressure turbine and is to be put into rotation by it, and a stator with at least one stator winding, at which electrical power is to be taken. The device also has a condensation cooler, which is set up to liquefy steam which has done work on the constant-pressure turbine. Liquid which is obtained from this steam by condensation must be fed into an output-side inlet of the first heat exchanger. | 01-21-2010 |
20100024418 | CONTROL SYSTEM AND METHOD FOR TRANSITIONING BETWEEN POSITION CONTROL AND FORCE CONTROL FOR MULTI-STAGE TURBO ENGINE TURBINE BYPASS VALVE - A control system comprising a current control module and a force control module. The current control module selectively supplies a current to a turbine bypass valve (TBV) to adjust the TBV to a predetermined position. The force control module selectively adjusts the current in response to a determination that an actual TBV position is less than a predetermined distance from the predetermined position. | 02-04-2010 |
20100037609 | Motor Vehicle and Method for Operating a Motor Vehicle with an Exhaust-Gas Heating Apparatus - A method for operating a motor vehicle which has, as components, a drive device, an exhaust system for exhaust gases of the drive device, at least one heating apparatus of the exhaust system and at least one energy converter, includes at least the following steps: (a) detecting a possibility of energy recovery, (b) activating the at least one energy converter, (c) feeding energy recovered by the at least one energy converter to the heating apparatus, (d) operating the heating apparatus for heating the exhaust gas with the recovered energy, and (e) detecting an end of the possibility of energy recovery, after which the energy converter is deactivated and the recovery of energy is ended. A motor vehicle for carrying out the method is also provided. | 02-18-2010 |
20100077748 | ADJUSTMENT MECHANISM IN VGS TYPE TURBOCHARGER AND EXHAUST GUIDE ASSEMBLY INCORPORATING THE SAME - A novel technique for partially improving wear resistance of an input portion of a drive ring, where power of a shifting drive is input from an external actuator, in an adjustment mechanism incorporated in a VGS type turbocharger for concurrently rotating adjustable blades, without specifically attaching a separate member afterwards is provided. The present invention is characterized in that the drive ring, to which shaft portions of the adjustable blades are connected, is made of a blank material punched out from a metal material having a substantially constant thickness, a blank being cut out such that the blank includes a surplus reinforcing portion in addition to an actual product part of the drive ring, the reinforcing portion being suitably folded back so as to partially increase the thickness of the input portion, where power of the shifting drive is input from the actuator, thereby increasing wear resistance of the input portion, and in addition characterized in that the material type/sheet thickness/shape factor are specified for implementation of the invention. | 04-01-2010 |
20110126537 | EXHAUST TURBINE EQUIPPED WITH EXHAUST CONTROL VALVE - Provided is an exhaust turbine equipped with an exhaust control valve (waste gate valve) which can reduce wear of the contact surfaces between the shaft and the bushing or the turbine casing that support the moving components of the valve in the entire operating range of the exhaust control valve. The exhaust turbine is equipped with the exhaust control valve for opening/closing an exhaust bypass passage which extends from an exhaust passage leading the exhaust turbine being driven by exhaust gas output from an engine to an exhaust outlet passage while bypassing the exhaust turbine, wherein the exhaust control valve comprises a shaft which is supported rotation-freely by a bushing or a turbine casing and supports a valve element for controlling the opening of the exhaust bypass passage, an arm equipped with a connecting part with a drive source and turning the shaft about the axis thereof by the reciprocating motion of the connecting part produced by the drive source, and a weight attached to an end on the side opposite to the connecting part with the drive source with respect to the axis of the shaft. | 06-02-2011 |
20110131985 | EXHAUST GAS ASSEMBLY - An exhaust gas assembly includes an exhaust gas manifold which is connected with an exhaust gas inlet of a manifold and an adjusting member arranged in the manifold. The adjusting member is configured to supply exhaust gas to a low pressure connection and/or a high-pressure connection of the manifold, wherein on the high-pressure side a high-pressure turbine housing is connected to the manifold and on the low pressure side a low pressure turbine housing is connected to the manifold. A connecting channel extends through the manifold and connects a high-pressure exhaust gas outlet) of the high-pressure turbine housing with a low pressure exhaust inlet) of the low pressure turbine housing. | 06-09-2011 |
20110192162 | Method of Operating a Piston Expander of a Steam Engine - A method of operating a piston expander, including introducing live steam into a cylinder space via an inlet valve; expanding the live steam during a power stroke in which a piston moves from an upper dead center position to a lower dead center position; opening an outlet opening as soon as the piston is in the region of the lower dead center position; after the piston reaches the lower dead center position, conveying the expanded steam out of the outlet opening and into a steam discharge; and subsequently closing the outlet opening before the piston in an exhaust stroke reaches the lower dead center position. | 08-11-2011 |
20110247327 | Diesel Turbine SCR Catalyst - A system for treating exhaust gases from an engine is described. The system includes, the exhaust gases routed from the engine to atmosphere through an exhaust passage, the system comprising: an injector directing a spray of reductant into the exhaust gases routed from the engine to atmosphere; an exhaust separation passage that separates an exhaust gas flow received from the engine into a plurality of separate exhaust gas flows; a plurality of oxidation catalysts, each of which receives one of the plurality of separate exhaust gas flows; a flow combining passage that receives the plurality of separate exhaust gas flows and combines them into a re-combined exhaust gas flow; a turbocharger that receives the re-combined exhaust gas flow from the flow combining passage; and a selective catalytic reduction catalyst positioned downstream of the turbocharger. | 10-13-2011 |
20110271674 | SLIDING VANE ROTARY EXPANDER FOR WASTE HEAT RECOVERY SYSTEM - A sliding vane rotary expander is used in a waste heat recovery system for a power plant. One example rotary expander has multiple stages with the vane assemblies disposed in bearing supported rings. Another example rotary expander has multiple stages with the vane assemblies disposed in an elliptical cavity. A balance valve equalizes the flow within the stages. Single stage rotary expanders may also be used. | 11-10-2011 |
20120042649 | EXHAUST-VALVE LIFTING AND LOWERING CAM, TURBOCHARGED FOUR STROKE ENGINE AND VALVE TIMING CONTROL METHOD - Providing a cam for lifting and lowering the exhaust valve so that the exhaust gas return-flow from one cylinder to another cylinder can be realized as greatly as possible, wherein the pistons and the exhaust valves do not come in contact with each other, and the valve control method does not depend on an electronic control approach. An exhaust cam for lifting and lowering the valve lift of the exhaust valve of one of the cylinders wherein the cam profile of the exhaust cam regarding the one of the cylinders including, but not limited to: a main exhaust lobe part for opening the exhaust valve so that the exhaust gas is discharged out of the cylinder; and, a gas return lobe part for opening the exhaust valve so that the quantity of the exhaust gas from the one of cylinders to the other cylinder is increased, the gas return lobe part being formed on the cam-follower descending part of the profile so as to delay the closing timing of the exhaust valve or maintain the valve lift-displacement regarding the exhaust valve larger, and wherein the cam profile is formed so that the interference between the exhaust valve and the piston is evaded and the overlap regarding the exhaust valve of the one cylinder and the exhaust valve of the other cylinder is increased by the manner that the main exhaust lobe part and the gas return lobe part rise outward from the base circle. | 02-23-2012 |
20120117965 | REFORMER UNIT - A diesel engine having an inlet side and an outlet side provided with at least one inlet valve and one outlet valve per cylinder, comprises a reformer catalyst unit comprising a catalyst located downstream of the outlet valve(s) and located such that a proportion of the hot exhaust passes through the catalyst whilst the remainder of the hot exhaust passes to a turbocharger and/or to exhaust gas aftertreatment, wherein the catalyst unit is provided with diesel fuel supply means, preferably in the form of a diesel fuel injector, such that diesel fuel may be injected to provide heat to the reformer catalyst to raise it to an effective reforming temperature. The output from the reformer unit may be fed to the inlet side of the engine, and/or may be admixed with the remainder of the exhaust gases prior to catalytic aftertreatment. Improvements in emission control are possible. | 05-17-2012 |
20120312015 | THERMOELECTRIC HYDROGEN HYBRID CAR - A thermoelectric hydrogen hybrid vehicle for use with fossil fuel, the thermoelectric hydrogen hybrid vehicle has a closed loop steam engine. The steam engine's boiler is a high temperature electrolysis unit. Inside the internal combustion engines exhaust heat is directly funneled into heating the high temperature electrolysis boiler. The steam engines electrical current generated through an alternator is then stored in a battery bank and then used for sustained current for electrolysis in the high temperature electrolysis boiler. Furthermore a braking mechanism is hooked up to the alternator for electrical generation when braking to be stored in a battery bank which is then used for electrolysis. | 12-13-2012 |
20130014504 | DEVICE FOR CONVERTING WASTE HEAT OF AN INTERNAL COMBUSTION MACHINE INTO MECHANICAL ENERGYAANM Brenk; AchimAACI KaempfelbachAACO DEAAGP Brenk; Achim Kaempfelbach DEAANM Seher; DieterAACI IlsfeldAACO DEAAGP Seher; Dieter Ilsfeld DE - The invention relates to a device ( | 01-17-2013 |
20130133322 | COOLING SYSTEM FOR AN EXHAUST PIPE OF A VEHICLE - A cooling system for an exhaust pipe of a vehicle has an engine, an exhaust discharging device connected to the engine, a generator driven by the engine and a cooling guide device. Even when the vehicle is idle, the cooling guide device still guides cool air from the generator to the exhaust discharging device to dissipate heat of the exhaust discharging device. Therefore, the heat of the exhaust discharging device is efficiently dissipated. | 05-30-2013 |
20140007574 | ENGINE ASSEMBLY - An engine assembly includes an engine control unit, an internal combustion engine having an exhaust, a turbine driven in use by said exhaust, and an energy storage mechanism for storing energy recovered from said exhaust by said turbine, wherein the engine control unit is operable to vary the rate of storing energy in the energy storage mechanism. | 01-09-2014 |
20140096518 | EXHAUST ARRANGEMENT - An exhaust arrangement for an internal combustion engine. The exhaust arrangement includes a diffuser duct including a wall surface which diverges between an inlet and a first outlet. The arrangement further includes an auxiliary duct extending from a second outlet of the diffuser duct. The second diffuser duct outlet being located on the wall surface between the diffuser duct inlet and the first outlet. The auxiliary duct includes a heat recovery device configured to convert heat energy from exhaust gases passing through the auxiliary duct in use to mechanical or electrical energy. | 04-10-2014 |
20140345274 | WASTE HEAT RECOVERY SYSTEM - A waste heat recovery system includes a Rankine cycle (RC) circuit having a pump, a boiler, an energy converter, and a condenser fluidly coupled via conduits in that order, to provide additional work. The additional work is fed to an input of a gearbox assembly including a capacity for oil by mechanically coupling to the energy converter to a gear assembly. An interface is positioned between the RC circuit and the gearbox assembly to partially restrict movement of oil present in the gear assembly into the RC circuit and partially restrict movement of working fluid present in the RC circuit into the gear assembly. An oil return line is fluidly connected to at least one of the conduits fluidly coupling the RC components to one another and is operable to return to the gear assembly oil that has moved across the interface from the gear assembly to the RC circuit. | 11-27-2014 |
20150033737 | DEVICE AND METHOD FOR UTILIZING THE WASTE HEAT OF AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR FOR UTILIZING THE WASTE HEAT OF A VEHICLE ENGINE - The invention relates to a method and a device for utilizing waste heat of an internal combustion engine, particularly for utilizing the waste heat of a vehicle engine, comprising at least one heat exchanger to transfer the waste heat from an internal combustion engine to a working medium; at least one turbine connected to a generator for generating mechanical or electrical energy, wherein said turbine is driven by said working medium; at least one cooler for cooling the working medium; at least one compressor for compressing the working medium; and at least one working medium circuit with pipes for the working medium, which is characterized in that the working medium, preferably carbon dioxide, propane, methanol or ethanol or a mixture of these fluids, is at least partially in a supercritical state. | 02-05-2015 |
20150354489 | METHOD AND SYSTEM FOR HUMIDITY SENSOR DIAGNOSTICS - Methods and systems are provided for an engine including a humidity sensor. Degradation of the humidity sensor may be determined based on a change in intake air relative humidity as compared to a change in intake air temperature or pressure, under selected conditions. An amount of exhaust gas recirculated to an engine intake is adjusted differently based on whether the humidity sensor is degraded or functional. | 12-10-2015 |
20160195006 | VARIABLE TURBINE GEOMETRY TURBOCHARGER VANE RING ASSEMBLY RETENTION DEVICE | 07-07-2016 |