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| Number | Title | Issue Date |
| 8141361 | Natural gas fueled turbocharged internal combustion engine In a gas fueled internal combustion engine, in particular a natural gas fueled internal combustion engine, as well as in a method for fuelling an internal combustion engine with gas, in particular with natural gas, with a charged “downsizing” Otto engine and an ... | 03/27/2012 |
| 8136357 | Turbocharged engine using an air bypass valve A system to cool exhaust gas entering a catalytic converter in a turbocharged engine is disclosed. An air bypass valve is controlled to vent pressurized air to the atmosphere to overrev a turbocharger when exhaust gas exceeds a predetermined temperature. The rotatio... | 03/20/2012 |
| 8109093 | Method and an arrangement in connection with a turbocharged piston engine The invention relates to a method and an arrangement in connection with a piston engine provided with a turbocompressor. In the method, combustion air from the engine is pressurized by the compressor of the turbocompressor, pressurized combustion air is humidified, ... | 02/07/2012 |
| 8091359 | Exhaust heat recovery for engine heating and exhaust cooling 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... | 01/10/2012 |
| 8069665 | Stored compressed air management for improved engine performance A method for providing air to a combustion chamber of an engine, the engine including a compressor and a boost tank selectably coupled to an intake manifold. The method includes varying a relative amount of engine exhaust in air pressurized in the boost tank based o... | 12/06/2011 |
| 8069664 | Integrated inlet and bypass throttle for positive-displacement supercharged engines A supercharged engine has a charge air intake and an engine exhaust outlet, a positive displacement supercharger connected to the air intake, a charge air and bypass control valve comprising a rotary body throttle valve including a rotary valve body, a primary air p... | 12/06/2011 |
| 8046997 | External spring supercharger bypass valve A screw compressor type supercharger includes an improved supercharger bypass valve including a spring biasing the bypass valve towards an open position. The spring may be a compression spring integrated into a bypass valve diaphragm, an extension spring extending p... | 11/01/2011 |
| 7805940 | Method and device for the control and diagnosis of an exhaust gas turbocharger There is described an exhaust gas turbocharger which comprises a compressor and a turbine having an adjusting drive for adjusting a turbine geometry. A performance characteristic is determined depending on a turbine output, a mass flow through the turbine and a gas ... | 10/05/2010 |
| 7793500 | Control apparatus for internal combustion engine having motor-driven supercharger The air flow inhaled into the internal combustion engine is calculated based on the operation state of the electric motor, the operational state of the bypass valve and the signal of the intake air flow sensor. Immediately after the bypass valve is opened when the e... | 09/14/2010 |
| 7762069 | Method and device for increasing the torque of a reciprocating piston internal combustion engine, in particular of a diesel engine A method and apparatus for increasing the torque of a reciprocating piston internal combustion engine, is described. The method and device includes compressing air from a charge air line or from a second air inlet by using the charge air compressor, storing the air ... | 07/27/2010 |
| 7685819 | Turbocharged internal combustion engine system The present invention relates to a turbocharged internal combustion engine (ICE) system having fast response to increased power demand and reduced response time lag. The system includes a vortex tube for delivering cold air into the turbocharger compressor where it ... | 03/30/2010 |
| 7654086 | Air induction system having bypass flow control An air induction system for an engine is disclosed. The air induction system has a compressor operable to compress air directed into the engine, a bypass valve, and a throttle valve. The bypass valve may be disposed between the compressor and the engine and may have... | 02/02/2010 |
| 7644584 | Method for modulating turbocharger braking A method for operating an internal combustion engine includes compressing intake air using a compressor, supplying the compressed intake air to at least one combustion chamber of the engine, operating the at least one combustion chamber to output exhaust gas, and di... | 01/12/2010 |
| 7637107 | Engine backpressure compensation system for stable emissions A control system and method that compensates for changes in backpressure of an engine includes a pressure sensor that senses the backpressure. A boost compensation module that communicates with the pressure sensor, determines an averaged BC factor, and adjusts a var... | 12/29/2009 |
| 7614232 | Turbocharger recirculation valve A system and method for maintaining an airflow path to a turbocharger system on a locomotive operating at high altitude and in a low ambient temperature environment, is provided and includes generating an ambient air stream flow into the turbocharger system to creat... | 11/10/2009 |
| 7578128 | Air bypass valve failure detection device in supercharging device for engine An air bypass valve failure detecting device outputs an opening command to an air bypass valve when a throttle valve suddenly closes, thereby prevent surging from occurring in a second intake passage between a turbocharger and a throttle valve. When the opening comm... | 08/25/2009 |
| 7500363 | Failure detecting device for supercharging-pressure control means in supercharging device of engine When an engine load QC is equal to or larger than a predetermined value, an acceleration-state determiner determines that a turbine is in an acceleration state, and a supercharging-pressure-control-state determiner determines that supercharging-pressure controller (... | 03/10/2009 |
| 7487639 | Method and control device for controlling a turbocharger having a turbine-side charging pressure control and a circulating-air valve A method is introduced for controlling a turbocharger that generates a charging pressure in an intake plenum. The charging pressure is controlled on the turbine side, and the turbocharger has a circulating-air valve that temporarily opens a flow-cross section betwee... | 02/10/2009 |
| 7404293 | Intake system for supercharged engine An intake system for a supercharged engine can include a blow-off passage provides communication between the upstream side of the throttle valve and the upstream side of a supercharger. A blow-off valve opens and closes the blow-off passage. The blow-off valve can b... | 07/29/2008 |
| 7398149 | Control system for internal combustion engine A control system for an internal combustion engine having a compressor wheel and a turbine wheel connected with the compressor wheel and rotationally driven by kinetic energy of exhaust gases from the engine, an exhaust gas flow rate changing device for changing a f... | 07/08/2008 |
| 7380401 | Method for monitoring the speed of a bi-turbocharger A method and a device for monitoring a rotational speed of a first charger for an internal combustion engine, especially an exhaust gas turbocharger, are provided. A first exhaust value representing an exhaust gas composition of the internal combustion engine in a f... | 06/03/2008 |
| 7363127 | Air brake system monitoring for pre-trip inspection Vehicles equipped with air brake systems and compressed air systems for supporting operation of the brakes provide for automated inspection of the air compressor system using an onboard vehicle or engine management computers. During vehicle operation, the system con... | 04/22/2008 |
| 7350356 | Exhaust gas turbocharger for an internal combustion engine An exhaust gas turbocharger for an internal combustion engine has an exhaust gas turbine in the exhaust gas train and a compressor in the intake tract, whereby an adjustable throttle device is provided upstream from the compressor wheel, for regulating the air mass ... | 04/01/2008 |
| 7340339 | Power management system An exemplary power management system may include a power source configured to receive a fuel supply and a transmission driveably engaged with the power source. A control system communicates with the power source and the transmission and is configured to determine a ... | 03/04/2008 |
| 7320220 | EGR valve having integrated motor, controller, and flow meter A valve arrangement for an internal combustion engine is disclosed. The valve arrangement may have a housing at least partially defining a venturi passageway, a first port disposed at an entrance to the venturi passageway, and a second port disposed at a throat of t... | 01/22/2008 |
| 7308886 | Method for operating an internal combustion engine during engine braking The invention relates to a method for operating an internal combustion engine of a motor vehicle in engine braking mode, in which the internal combustion engine is operated with at least one unfired cylinder, and the internal combustion engine has variably controlla... | 12/18/2007 |
| 7296562 | Control system and method for estimating turbocharger performance A control system for estimating the performance of a compressor is disclosed. The control system has a compressor fluidly connected to an inlet manifold of a power source. The control system also has a power source speed sensor to provide an indication of a rotation... | 11/20/2007 |
| 7280950 | Locomotive diesel engine turbocharger and turbine stage constructed with turbine blade vibration suppression methodology A method for fabrication of a locomotive diesel engine turbocharger turbine stage so as to avoid harmonic vibration in the turbine blades when the engine is operated at pre-selected throttle settings. Upon determining throttle settings for the engine and modeling of... | 10/09/2007 |
| 7260933 | Method for limiting a boost pressure In a method for limiting a boost pressure of an internal combustion engine which is supercharged by the compressor of an exhaust gas turbocharger including a control unit in which a desired boost pressure value is compared with a limiting value and when the desired ... | 08/28/2007 |
| 7254948 | Boost wastegate device for EGR assist An apparatus and method for controlling exhaust gas recirculation flow. The apparatus and method uses a pressure-bleeding device, such as a wastegate valve, to change the pressure in an internal combustion engine in order to alter the flow rate of the exhaust gas th... | 08/14/2007 |
| 7237535 | Enhanced accuracy fuel metering system and method A valve assembly having a position control characteristic that is represented by an N-th order polynomial equation includes a valve housing a valve element, and a valve characterization circuit. The valve housing has at least a fluid inlet, a fluid outlet, and a flo... | 07/03/2007 |
| 7239034 | Engine driven power inverter system with cogeneration A combined heat and AC power generating system is disclosed having black start capability for the full time, simultaneous production of both electricity and heat. Heat generated within the system is captured and used for heating applications such as heating building... | 07/03/2007 |
| 7165538 | Method and device for operating an internal combustion engine having at least two cylinder banks A method and a device for operating an internal combustion engine having at least two cylinder banks are provided, each of the at least two cylinder banks having an air supply with an individual compressor, and a coordination of the compressors is possible in a simp... | 01/23/2007 |
| 7165402 | Combustion engine A combustion engine for a vehicle comprising at least one exhaust gas collector for receiving the gases combusted in the engine, an exhaust gas driven turbo compressor for connection downstream the exhaust gas collector, and a mounting device for mounting the turbo ... | 01/23/2007 |
| 7165399 | Method and system for using a measure of fueling rate in the air side control of an engine Methods and Systems for using a measure of fueling rate in the air side control of an engine. By using a measure of the fueling rate, the air side control may, for example, anticipate the future air side needs of the engine, and adjust one or more air side parameter... | 01/23/2007 |
| 7162861 | Method of improving performance of emission control devices by controlling exhaust oxygen content A method of providing extra air to the exhaust stream of an internal combustion engine. A small flow of air is diverted from the output of an air-charging device, such as a turbocharger, to an entry point upstream of an emission control device. The air is supplied i... | 01/16/2007 |
| 7152588 | Intercooler bypass A method of bypassing an intercooler (105) for an engine (100) includes the step of detecting (703) an idle condition for an engine (100). based on engine speed and load, air is induced (707) to bypass an intercooler (105) f... | 12/26/2006 |
| 7152393 | Arrangement for utilizing the throttle energy of an internal combustion engine In an arrangement for reducing exhaust emissions and utilizing the throttling energy of an internal combustion engine, a compressor and a generator are operatively connected to a turbine by which the intake air flow is controlled while transferring the throttling en... | 12/26/2006 |
| 7143580 | Virtual compressor outlet temperature sensing for charge air cooler overheating protection A system and method for controlling an internal combustion engine, having an exhaust recirculation (EGR) system and a charge air cooler, to prevent overheating the charge air cooler. The system calculates the output temperature of a turbocharger compressor as a func... | 12/05/2006 |
| 7134281 | System and method for operating a compression-ignition engine A method of operating a compression-ignition engine includes adjusting timing of fuel injection if a sensed parameter indicative of a maximum pressure within a combustion chamber varies relative to a selected pressure and if fuel injection timing is greater than a p... | 11/14/2006 |
