| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 060615000 | Having condition responsive control of motive fluid | 46 |
| 20080250787 | Device for Controlling an Exhaust Gas Stream - The invention relates to a device for controlling an exhaust gas stream. Said device comprises a housing ( | 10-16-2008 |
| 20090094980 | Exhaust Heat Recovery Apparatus - An exhaust heat recovery apparatus includes a Stirling engine and a clutch. The Stirling engine produces motive power by recovering thermal energy from exhaust gas discharged from an internal combustion engine from which exhaust heat is recovered. The motive power produced by the Stirling engine is transmitted to an internal combustion engine transmission through the clutch and an exhaust heat recovery device transmission, and combined with the motive power produced by the internal combustion engine through the internal combustion engine transmission, and is output from an output shaft. If rapid acceleration is required, and the increase in the rotation speed of the Stirling engine therefore lags behind the increase in the rotation speed of the internal combustion engine, the clutch is released. With this configuration, reduction in the power output from the heat engine, from which exhaust heat is recovered, is restricted, and the degradation of the acceleration performance is minimized. | 04-16-2009 |
| 20100058759 | Device and method for operating an internal combustion engine, computer program, computer program product - For operating an internal combustion engine having a throttle situated in an exhaust line or exhaust return line, in which a heat engine is driven by a quantity of heat produced by the internal combustion engine, in a first non-heating operating mode of the internal combustion engine, a first setpoint value is preset, a first operating parameter that characterizes a temperature of the internal combustion engine is detected, a first triggering value is determined for the triggering of the at least one throttle as a function of the first setpoint value and the first operating parameter, the at least one throttle is triggered in accordance with the first triggering value, and the at least one heat engine is driven by the resulting quantity of heat. | 03-11-2010 |
| 20100083657 | Method for Controlling and/or Adjusting a Charging Pressure of an Exhaust Gas Turbocharger as well as an Internal Combustion Engine - The invention relates to a method for controlling and/or adjusting the charging pressure of an exhaust gas turbocharger of an internal combustion engine, the exhaust gas turbocharger having a turbine, a compressor which is driven by the latter and which makes available compressed fluid for the internal combustion engine, and a pressure setting device for setting the turbine inlet pressure. Here, it is provided that the turbine inlet pressure is set to a defined turbine inlet pressure such that for the internal combustion engine there is a maximum indicated medium pressure and/or a maximum effective medium pressure, the defined turbine inlet pressure being computed by means of an air model. The invention furthermore relates to an internal combustion engine with an exhaust gas turbocharger. | 04-08-2010 |
| 20110011085 | VARIABLE GEOMETRY TURBINE WITH WASTEGATE - A variable geometry turbine comprises a turbine wheel ( | 01-20-2011 |
| 20110072815 | Flow Control Device for a Turbocharger - A flow control device for a turbocharger ( | 03-31-2011 |
| 20110088394 | WASTE HEAT REGENERATION SYSTEM - A waste heat regeneration system for a vehicle having a vehicle engine actuated by a start-stop switch includes Rankine cycle circuit, a motor generator, a by-pass circuit and a control device. The Rankine cycle circuit includes a pump, a boiler heating the heat medium by heat exchanging with waste heat generated by the vehicle engine, an expansion device and a condenser. The by-pass circuit is connected to the Rankine cycle circuit at the upstream and downstream sides of the condenser and the communication of the heat medium is openable and closable therethrough. When the start-stop switch of the vehicle engine is turned off, the control device controls the by-pass circuit to communicate the heat medium therethrough and keeps controlling of the rotational speed of the motor generator until pressure difference between the upstream and downstream of the expansion device is decreased to a predetermined level, and then stops the control. | 04-21-2011 |
| 20110154821 | Estimating Pre-Turbine Exhaust Temperatures - Methods are provided for estimating an exhaust temperature of an engine exhaust of a turbocharged engine prior to an inlet of the turbine of the turbocharger. These methods estimate the pre-turbine exhaust temperature based on thermodynamic equations and measured temperature and pressure values from elsewhere in the system. The estimated pre-turbine exhaust temperature can be used for controlling the engine, for verification of the emissions control system, and can also be compared against actual measurements of the pre-turbine exhaust temperature to evaluate engine performance. The present invention also provides turbocharged engine systems including sensors to make the required measurements and logic configured to estimate the pre-turbine exhaust temperature. | 06-30-2011 |
| 20110232282 | SIMPLIFIED VARIABLE GEOMETRY TURBOCHARGER WITH VARIABLE NOZZLE - The flow path of exhaust gas to the turbine wheel ( | 09-29-2011 |
| 20120036850 | WASTE HEAT RECOVERY SYSTEM FOR RECAPTURING ENERGY AFTER ENGINE AFTERTREATMENT SYSTEMS - The disclosure provides a waste heat recovery (WHR) system including a Rankine cycle (RC) subsystem for converting heat of exhaust gas from an internal combustion engine, and an internal combustion engine including the same. The WHR system includes an exhaust gas heat exchanger that is fluidly coupled downstream of an exhaust aftertreatment system and is adapted to transfer heat from the exhaust gas to a working fluid of the RC subsystem. An energy conversion device is fluidly coupled to the exhaust gas heat exchanger and is adapted to receive the vaporized working fluid and convert the energy of the transferred heat. The WHR system includes a control module adapted to control at least one parameter of the RC subsystem based on a detected aftertreatment event of a predetermined thermal management strategy of the aftertreatment system. | 02-16-2012 |
| 20120042650 | RANKINE CYCLE CONDENSER PRESSURE CONTROL USING AN ENERGY CONVERSION DEVICE BYPASS VALVE - The disclosure provides a waste heat recovery system and method in which pressure in a Rankine cycle (RC) system of the WHR system is regulated by diverting working fluid from entering an inlet of an energy conversion device of the RC system. In the system, an inlet of a controllable bypass valve is fluidly coupled to a working fluid path upstream of an energy conversion device of the RC system, and an outlet of the bypass valve is fluidly coupled to the working fluid path upstream of the condenser of the RC system such that working fluid passing through the bypass valve bypasses the energy conversion device and increases the pressure in a condenser. A controller determines the temperature and pressure of the working fluid and controls the bypass valve to regulate pressure in the condenser. | 02-23-2012 |
| 20120090321 | Exhaust gas heat utilization in motor vehicles - In an exhaust gas heat utilization device of a motor vehicle, comprising an exhaust gas heat utilization cycle in which an operating temperature of an operating fluid of the exhaust gas heat utilization cycle is controlled by adapting a mass flow of the operating fluid through a heat exchanger of the exhaust gas heat utilization cycle in such a way that a maximum permissible operating temperature, in particular the decomposition temperature, of the operating fluid is not exceeded. | 04-19-2012 |
| 20120102947 | SYSTEM FOR RECOVERING ENGINE EXHAUST ENERGY - A system for recovering, engine exhaust energy is provided. The system includes an exhaust system including a first exhaust branch and a second exhaust branch. The system includes a first and a second group of exhaust valves associated with a plurality of engine cylinders. The system also includes an energy recovering assembly. The system further includes a control mechanism configured to control at least one of the first and second groups of exhaust valves according to a determined timing strategy based on at least one engine operating parameter. | 05-03-2012 |
| 20120117966 | TURBOCHARGER, AND METHOD FOR MOUNTING A CLOSED-LOOP CONTROL DEVICE FOR A TURBOCHARGER - A turbocharger, in particular a turbocharger for an internal combustion engine of a motor vehicle, has a turbine that includes a turbine casing, and a closed-loop control device for regulating an exhaust gas stream flowing through the turbine. The closed-loop control device includes an adjusting element for adjusting an exhaust gas stream, a control lever that is arranged on the turbine casing and is used for actuating the adjusting element, and a control rod which is connected to the control lever via an adjustment piece that has a guide for continuously moving the control rod within the adjustment piece. The control rod can be fixed within the guide by forming an integral joint therewith. There is also provided a method for mounting a closed-loop controller for such a turbocharger. | 05-17-2012 |
| 20120124997 | INTERNAL COMBUSTION ENGINE AND ASSOCIATED OPERATIONAL METHOD - The present invention relates to an internal combustion engine and operating method. The internal combustion engine includes a fresh air system for the supplying of fresh air to at least one combustion chamber; an exhaust gas system for the carrying away of exhaust gas from the at least one combustion chamber; an exhaust gas recycling system for the recycling the exhaust gas from the exhaust gas system into the fresh air system; and at least one additional valve, configured in the fresh air system upstream of at least one inlet valve associated with the at least one combustion chambers. A control device is configured to actuate at least one additional valve such that at least one of a particle content in the exhaust gas and a fuel consumption of the internal combustion engine are at least one of optimum and optimal comprise for at least one environmental parameter. | 05-24-2012 |
| 20120210713 | RANKINE CYCLE WASTE HEAT RECOVERY SYSTEM - This disclosure relates to a waste heat recovery (WHR) system and to a system and method for regulation of a fluid inventory in a condenser and a receiver of a Rankine cycle WHR system. Such regulation includes the ability to regulate the pressure in a WHR system to control cavitation and energy conversion. | 08-23-2012 |
| 20130014505 | WASTE HEAT REGENERATION SYSTEMAANM Enokijima; FuminobuAACI Kariya-shiAACO JPAAGP Enokijima; Fuminobu Kariya-shi JPAANM Mori; HidefumiAACI Kariya-shiAACO JPAAGP Mori; Hidefumi Kariya-shi JPAANM Iguchi; MasaoAACI Kariya-shiAACO JPAAGP Iguchi; Masao Kariya-shi JP - A waste heat regeneration system includes a pump, a coolant boiler, an exhaust gas boiler, an expander, a first condenser, a gas/liquid separator, and a supercooler. A first flow control valve adjusts the amount of an operating fluid circulating in a first bypass flow path by controlling its opening degree based on a pressure difference P | 01-17-2013 |
| 20130025277 | WASTE HEAT REGENERATION SYSTEM - A waste heat regeneration system includes a pump, a coolant boiler, an exhaust gas boiler, an expander, a condenser, a gas-liquid separator and a supercooler. A flow control valve maintains a temperature difference (T | 01-31-2013 |
| 20130074497 | WASTE HEAT RECOVERY SYSTEM - A waste heat recovery system is for use with a power unit that includes an internal combustion engine. The waste heat recovery system includes a Rankine cycle device in which working fluid circulates through a pump, a boiler, an expander and then through a condenser, heat exchange occurs in the boiler between the working fluid and intake fluid that is introduced into the internal combustion engine while being cooled, a determination device for determining required cooling load for the intake fluid, a pressure reducing device for reducing evaporation pressure in the Rankine cycle device, and a controller for controlling the pressure reducing device so as to reduce the evaporation pressure below a predetermined evaporation pressure if the required cooling load determined by the determination device exceeds a threshold. | 03-28-2013 |
| 20130186087 | WASTE HEAT RECOVERY SYSTEM WITH PARTIAL RECUPERATION - A waste heat recovery apparatus for use with an internal combustion engine includes a working fluid circuit having a first heating line and a second heating line parallel to the first heating line, a first heat exchanger in the first heating line operatively connected to transfer heat energy to the working fluid from a waste exhaust flow of an internal combustion engine, a second heat exchanger in the second heating line operatively connected to transfer heat energy to the working fluid from recirculating exhaust gas the internal combustion engine, and a recuperative heat exchanger operatively connected to transfer heat energy to the working fluid in the first heating line from the working fluid at a junction of an expander outlet and condenser inlet. | 07-25-2013 |
| 20130205776 | WASTE HEAT RECOVERY SYSTEM AND METHOD OF OPERATING THE SAME - A waste heat recovery system includes a hot gas stream flow path, a pump, an expander, a first working fluid flow path fluidly connecting a pump outlet and an expander inlet, a second working fluid flow path fluidly connecting an expander outlet and a pump inlet, a first heat exchange section that transfers heat from the hot gas stream to working fluid traveling along the first working fluid flow path, a second heat exchange that transfers heat from the hot gas stream to working fluid traveling along the first working fluid flow path between the pump and the first heat exchange section, and a third working fluid flow path fluidly connecting a first point of the first working fluid path to a second point of the second working fluid path to permit at least a portion of the working fluid to bypass the first heat exchange section and the expander. | 08-15-2013 |
| 20130263594 | ARRANGEMENT AND METHOD FOR CONVERTING THERMAL ENERGY TO MECHANICAL ENERGY - An arrangement and a method for converting thermal energy to mechanical energy. The arrangement has a line circuit ( | 10-10-2013 |
| 20130269343 | VEHICLE WITH STIRLING ENGINE INTEGRATED INTO ENGINE EXHAUST SYSTEM - In accordance with exemplary embodiments, a Stirling engine is integrated into an exhaust system of a vehicle. The system comprises an engine coupled to a cooling system and an exhaust system. An emission control system is coupled to the exhaust system. A Stirling engine has one end coupled to the cooling system and another end selectively coupled to the exhaust system between the engine and the emission control system, and configured be driven from heat extracted from exhaust gas flow. The Stirling engine drives an electrical energy generator that provides electrical energy for storage in an energy storage system. | 10-17-2013 |
| 20130276446 | ARRANGEMENT AND METHOD FOR CONVERTING THERMAL ENERGY TO MECHANICAL ENERGY - An arrangement and a method for converting thermal energy to mechanical energy includes a circulation unit ( | 10-24-2013 |
| 20130283790 | DEVICE AND METHOD FOR THE RECOVERY OF WASTE HEAT FROM AN INTERNAL COMBUSTION ENGINE - The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine ( | 10-31-2013 |
| 20130318967 | WASTE HEAT RECOVERY DEVICE - In an axial piston expander for a waste heat recovery device of a motor vehicle, the expander having a shaft with an axis of rotation around which a number of cylinders are arranged parallel to, and distributed around, the axis of rotation, each cylinder including a piston connected to a coupling plate which is pivotally mounted on the shaft so as to provide for an adjustable piston stroke and the cylinders having high pressure inlets and low pressure outlets with valve devices for the control of the operating fluid flow through the cylinders, a stroke adjustment arrangement is provided by which the stroke of the pistons is adjustable via a regulation of the pressure in an operating chamber at the back side of the pistons, the waste heat recovery device being coupleable with the drive train of the internal combustion engine for the transfer of mechanical driving power. | 12-05-2013 |
| 20130327041 | WASTE HEAT UTILIZATION DEVICE AND OPERATING METHOD - In a waste heat utilization arrangement for an internal combustion engine of a motor vehicle including a waste heat utilization circuit in which a working medium is circulated, a pumping device for pressurizing the working medium, an evaporator for vaporizing the working medium by waste heat of the internal combustion engine, an expansion machine for expanding the working medium while extracting mechanical energy therefrom and a condenser for condensing the working medium in a resting state, the waste heat utilization circuit is in communication with a pressure store capable of maintaining a pressure for setting and ensuring a predetermined adjustable minimum pressure of the working medium in the waste heat utilization circuit. | 12-12-2013 |
| 20140013743 | REVERSIBLE WASTE HEAT RECOVERY SYSTEM AND METHOD - 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. | 01-16-2014 |
| 20140060044 | SYSTEM AND METHOD FOR CONTROLLING FLUID FLOW INTO AND/OR OUT OF A CATALYTIC HEAT EXCHANGER BASED ON A CATALYST TEMPERATURE - A system includes a heat exchanger and a fluid flow control module. The heat exchanger includes a substrate, a catalyst applied to the substrate, and fluid passages. Exhaust gas from an engine flows through the heat exchanger and a working fluid in the fluid passages absorbs heat from the exhaust gas. The fluid flow control module controls fluid flow from the heat exchanger based on a temperature of the catalyst. | 03-06-2014 |
| 20140069097 | EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE - An exhaust purification system is provided that can decrease the load acting on a device treating PM, even when switched to stoich operation. The exhaust purification system includes: a PM treatment device, a three-way purification catalyst, an LAF sensor, and an ECU ( | 03-13-2014 |
| 20140137554 | RANKINE CYCLE WASTE HEAT RECOVERY SYSTEM - A waste heat recovery (WHR) system connects a working fluid to fluid passages formed in an engine block and/or a cylinder head of an internal combustion engine, forming an engine heat exchanger. The fluid passages are formed near high temperature areas of the engine, subjecting the working fluid to sufficient heat energy to vaporize the working fluid while the working fluid advantageously cools the engine block and/or cylinder head, improving fuel efficiency. The location of the engine heat exchanger downstream from an EGR boiler and upstream from an exhaust heat exchanger provides an optimal position of the engine heat exchanger with respect to the thermodynamic cycle of the WHR system, giving priority to cooling of EGR gas. The configuration of valves in the WHR system provides the ability to select a plurality of parallel flow paths for optimal operation. | 05-22-2014 |
| 20140165562 | ENGINE-WASTE-HEAT UTILIZATION DEVICE - An engine-waste-heat utilization device includes a Rankine cycle which includes a heat exchanger through which cooling water coming out from an engine flows to recover waste-heat of the engine to refrigerant, an expander which generates power using the refrigerant coming out from the heat exchanger, a condenser which condenses the refrigerant coming out from the expander and a refrigerant pump which supplies the refrigerant coming out from the condenser to the heat exchanger, and a cooling water passage in which the cooling water having a higher temperature flows when the Rankine cycle is operated than when the Rankine cycle is not operated. | 06-19-2014 |
| 20140174079 | METHOD FOR REGULATING A BOOST PRESSURE OF AN ENGINE - In a method for regulating a boost pressure of an engine which has a compressor, an actual boost pressure and a setpoint boost pressure are used as input parameters. The setpoint boost pressure is regulated in such a way that a pressure ratio in the compressor does not exceed a limit pressure ratio. A reference boost pressure is ascertained based on a speed of the engine and a load of the engine. A flow and/or a pressure of air supplied to the engine is/are detected and an associated flow signal and/or pressure signal is generated. The smaller of the reference boost pressure and a limit boost pressure is used as a setpoint boost pressure. The limit boost pressure is ascertained based on a limit boost pressure ratio and a speed of the compressor. | 06-26-2014 |
| 20140230436 | Turbo Recharger - Embodiments as described herein provide a simplified turbo recharger for an efficient, reliable, low-cost system that delivers good performance for improving efficiency of a vehicle using electric power. Embodiments as described herein may be used with electric motor, combustion engine hybrid vehicles to improve the fuel efficiencies of such vehicles. A turbine may be positioned in an exhaust stream of a vehicle that is coupled to a generator to recharge the battery of a vehicle. The turbine may include a wastegate to permit the exhaust stream to enter or bypass the turbine depending on the charge of the battery, the rate of rotation of the turbine, pressure within the turbine, the speed of the engine, or a combination of the above. | 08-21-2014 |
| 20140290243 | WASTE-HEAT RECOVERY SYSTEM - In a waste-heat recovery system, a gear pump and an electric motor share a drive shaft. A pump interior portion and a motor interior portion are partitioned from each other by a shaft seal, and the pump interior portion defines a part of a circulation path of a Rankine cycle circuit. One end of a communication path that is communicated to the motor interior portion is connected to a bottom portion of a housing, and the other end of the communication path is connected to the circulation path at a position between an expander and a condenser in the Rankine cycle circuit. | 10-02-2014 |
| 20150013333 | HEAT RECOVERY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - A heat recovery system for an internal combustion engine may include a heat transfer device flowed through by a fluidic heat carrier for transferring the heat from a combustion exhaust gas of the internal combustion engine to the heat carrier, a heat power machine flowed through by the heat carrier for converting the heat transferred to the heat carrier into mechanical work, a substantially cyclically closed duct system for connecting the heat transfer device with the heat power machine, at least one displacement pump for conveying the heat carrier through the duct system in a predetermined flow direction, and a pump drive for driving the displacement pump. A reduced wear may result when the heat recovery system is supplemented by an impermeable separating membrane for the fluid-tight separation of the heat carrier from the pump drive. | 01-15-2015 |
| 20150047351 | WASTE HEAT UTILIZATION APPARATUS - A waste heat utilization apparatus is provided with a Rankine cycle and a power transmission mechanism that transmits power regenerated by an expander to an engine. The power transmission mechanism includes an expander clutch that interrupts or permits The transmission of the power from to expander to the engine. The expander includes a rotational speed sensor that detects a rotational speed of the expander. An increase in friction of the expander is detected on the basis of an increase in the rotational speed of the expander detected by the rotational speed sensor when the expander clutch is disconnected. | 02-19-2015 |
| 20150089943 | METHODS AND SYSTEMS FOR HYBRID VEHICLE WASTE HEAT RECOVERY - Systems and methods for operating an engine that includes an exhaust gas heat recovery system are described. The system may selectively or contemporaneously supply energy from engine exhaust gas to generate electricity or warm the engine. In one example, exhaust gas energy raises a temperature of a heat transfer medium and the heat transfer medium is routed to an engine coolant heat exchanger or an expander via a bypass valve. | 04-02-2015 |
| 20150096297 | Exhaust Heat Recovery Device - An exhaust heat recovery device provided with a Rankine cycle, capable of achieving improvements in start-up performance of the Rankine cycle and an efficient operation (actuation) of the Rankine cycle. An exhaust heat recovery device | 04-09-2015 |
| 20150121866 | RANKINE CYCLE MID-TEMPERATURE RECUPERATION - A system and method for recuperation is provided including a boiler wherein air and exhaust gas recirculation pass through the boiler and are cooled by thermal transfer with a coolant. The system includes an expander receiving coolant from the boiler, a recuperator receiving coolant from the expander, a condenser receiving coolant from the recuperator; a pump pumping coolant from the condenser to a low temperature portion of the boiler, and a valve, which allows coolant to pass directly from the boiler to the recuperator. | 05-07-2015 |
| 20150308318 | APPARATUS AND METHOD OF DISABLING A WASTE HEAT RECOVERY APPARATUS WORKING FLUID FLOW - An apparatus and method for operating Waste Heat Recovery system based on a Rankine cycle and including a vaporizer/boiler heated by an internal combustion engine exhaust waste heat, an expander, a condenser, and a pump for circulating a working fluid through the circuit, includes a shutoff valve placed at the inlet side of the pump and controlled in the event an emergency shutdown is needed to stop working fluid circulation by closing and causing the pump to cavitate. | 10-29-2015 |
| 20160084151 | Turbo Recharger - Embodiments as described herein provide a simplified turbo recharger for an efficient, reliable, low-cost system that delivers good performance for improving efficiency of a vehicle using electric power. Embodiments as described herein may be used with electric motor, combustion engine hybrid vehicles to improve the fuel efficiencies of such vehicles. A turbine may be positioned in an exhaust stream of a vehicle that is coupled to a generator to recharge the battery of a vehicle. The turbine may include a wastegate to permit the exhaust stream to enter or bypass the turbine depending on the charge of the battery, the rate of rotation of the turbine, pressure within the turbine, the speed of the engine, or a combination of the above. | 03-24-2016 |
| 20160084173 | GENERATION OF ELECTRICITY FROM EXHAUST GAS - A turbo-generator system generates electricity from the exhaust gas of an internal combustion engine | 03-24-2016 |
| 20160123191 | VEHICLE WASTE HEAT RECOVERY SYSTEM - A waste heat recovery system ( | 05-05-2016 |
| 20160201520 | METHOD AND SYSTEM OF CONTROLLING A THERMODYNAMIC SYSTEM IN A VEHICLE | 07-14-2016 |
| 20170234265 | HEAT EXCHANGER FOR A RANKINE CYCLE IN A VEHICLE MUFFLER | 08-17-2017 |
