Patents by Inventor Mikael Larsson
Mikael Larsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Method for Controlling the Fuel Supply to an Internal Combustion Engine at Start-Up and a Carburetor
Publication number: 20130133618Abstract: The invention concerns a method for controlling the fuel supply to an internal combustion engine at start-up, the engine having a fuel supply system. The invention also concerns a carburetor having a fuel supply system including a main fuel path connecting a diaphragm controlled regulating chamber to a main outlet in the region of the venturi section, the main fuel path including an actively controlled fuel valve, and an idling fuel path branching off from the main fuel path downstream of the valve and ending in at least one idling outlet in the region of a throttle valve, the fuel supply system further including a start fuel line starting upstream or downstream of the fuel valve and ending in at least one start fuel outlet to the intake channel.Type: ApplicationFiled: June 28, 2011Publication date: May 30, 2013Applicant: HUSQVARNA ABInventors: Mikael Larsson, Magnus Ottosson, Bo Carlsson -
Publication number: 20130030744Abstract: A monitoring system for a packaging system comprising a plurality of machine units comprises an output sensor for measuring packages output from the packaging system, a number of pairs of machine unit sensors, each pair of sensors comprising an input sensor and an output sensor, wherein the number of pairs of machine unit sensors is arranged at a number of machine units, respectively, a processing apparatus configured to receive information from the sensors, and a communications network configured to send information from the sensors to the processing apparatus. Based on the information from the number of pairs of machine unit sensors a number of wasted packages may be determined, which in turn imply that a reliable efficiency measure may be determined.Type: ApplicationFiled: April 8, 2011Publication date: January 31, 2013Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventor: Mikael Larsson
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Patent number: 8333174Abstract: Method for controlling fuel metering in a carburetor or a low pressure injection system of an internal combustion engine when the engine is operating at idle speed, the method includes the steps of: a) monitoring the engine speed; b) determining a first variable (A) based on a first moving average algorithm using the monitored engine speed as input data; c) determining a second variable (B) based on a second moving average algorithm using the monitored engine speed as input data, where the first moving average algorithm is arranged to react faster to an engine speed change than the second moving average algorithm; d) comparing the second variable (B) to the first variable (A), where if 1) the second variable (B) is higher than the first variable (A): the fuel metering is set in a first leaner setting, and where if 2) the second variable (B) is lower than the first variable (A): the fuel metering is set in a second richer setting.Type: GrantFiled: September 21, 2007Date of Patent: December 18, 2012Assignee: Husqvarna ABInventors: Bo Carlsson, Mikael Larsson
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Patent number: 8335629Abstract: A method for controlling a valve of a crank case scavenged internal combustion engine includes determining a valve control sequence, wherein the valve is controlled in consecutive periods of revolutions each having a period length of at least ten revolutions, and controlling the valve according to the valve control sequence to adjust the ratio of fuel to air in a combustible mixture delivered to an engine combustion chamber. Determining the valve control sequence for each period includes providing a number of valve shut-off positions, wherein the number of valve shut-off positions corresponds to an amount of fuel or air to be supplied to the engine during the corresponding period, and determining which revolutions of the period that the valve is to be closed.Type: GrantFiled: May 14, 2007Date of Patent: December 18, 2012Assignee: Husqvarna ABInventors: Bo Carlsson, Mikael Larsson
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Patent number: 8268275Abstract: A selective catalytic reduction reactor (8), which comprises at least one catalyst layer (14), is operative for removing NOx from a flow of process gas of a process plant, such as a combustion plant or an incineration plant. A device for controlling the feeding of a reducing agent, such as urea or ammonia, to said at least one catalyst layer (14), which has an attack area (A) facing the flow (P) of process gas, comprises at least one supply nozzle (32) which is operative for supplying reducing agent in at least one supply area (34) which corresponds to a part of the attack area (A), and a moving device (36) which is operative for moving said supply area (34) over the attack area (A).Type: GrantFiled: August 31, 2009Date of Patent: September 18, 2012Assignee: ALSTOM Technology LtdInventor: Mikael Larsson
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Publication number: 20120142474Abstract: A drive unit, more preferably rear drive unit, for an all-wheel drive of a motor vehicle with two drive shafts, of which one drive shaft serves for driving the one wheel and the other drive shaft serves for driving the other wheel of a motor vehicle. Provided is a transmission operationally that is connected to the drive shafts, through which a drive torque acting on the input of the transmission can be divided or is divided into at least two output torques and through which the output torque of the transmission acting on the one drive shaft is reversible or is reversed in its operation direction relative to the output torque of the transmission acting on the other drive shaft.Type: ApplicationFiled: December 2, 2011Publication date: June 7, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gabriel TROENNBERG, Mikael LARSSON, Mats STRANDBERG, Hans-Martin DURINGHOF, Erik STEN
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Patent number: 8074623Abstract: Method for adjusting the air-fuel ratio of an internal combustion engine, in a fuel supply section thereof, such as a carburettor or a fuel-injection system, the fuel supply section having a control unit for adjusting the air-fuel ratio of the engine, and the engine having an engine speed and an engine throttle ranging from zero throttle to full throttle. The method including: a) measuring the engine speed of the engine; b) comparing the engine speed to a first engine speed value; c) adjusting the air fuel ratio if the engine speed is lower than the first engine speed value; and d) repeating a) to c) until the engine speed is either greater than or equal to the first engine speed value.Type: GrantFiled: May 12, 2006Date of Patent: December 13, 2011Assignee: Husqvarna ABInventors: Bo Carlsson, Niklas Enander, Reine Gustafsson, Mikael Larsson, Mats Roberg
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Publication number: 20110301027Abstract: A superabsorbent polymer composite including superabsorbent polymers and cellulosic nanofibrils having a diameter equal to or less than 100 nm. The composite may be in the form of particles or a foam. Methods for producing the composite and absorbent articles including the superabsorbent polymer composite are also provided.Type: ApplicationFiled: December 17, 2009Publication date: December 8, 2011Applicant: SCA HYGIENE PRODUCTS ABInventors: Rozalia Bitis, Shabira Abbas, Kent Malmgren, Mikael Larsson, Anette Larsson
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Publication number: 20110150732Abstract: A selective catalytic reduction reactor (8), which comprises at least one catalyst layer (14), is operative for removing NOx from a flow of process gas of a process plant, such as a combustion plant or an incineration plant. A device for controlling the feeding of a reducing agent, such as urea or ammonia, to said at least one catalyst layer (14), which has an attack area (A) facing the flow (P) of process gas, comprises at least one supply nozzle (32) which is operative for supplying reducing agent in at least one supply area (34) which corresponds to a part of the attack area (A), and a moving device (36) which is operative for moving said supply area (34) over the attack area (A).Type: ApplicationFiled: August 31, 2009Publication date: June 23, 2011Inventor: Mikael Larsson
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Publication number: 20110095215Abstract: A fuel supply unit (1) is provided e.g. a carburetor or a low pressure injection system of an internal combustion engine. The fuel supply unit (1) includes a main air passage (3), which has a throttle valve (8, 9) mounted therein and the throttle valve (8, 9) includes a throttle shaft (8) extending between two to one another opposite located shaft sides (6, 7). A control module (2) for the fuel supply (2) is mounted to one (7) of the shaft sides (6, 7), which control module (2) includes throttle position detecting means (30; 300) for monitoring the position of the throttle valve (8, 9), and fuel valve means (60) for controlling the fuel supply to the main air passage (3). Also, an ignition system is provided which is able to control the ignition timing with respect to status of the at least one of the means (30; 300, 40, 60, 100) in the control module (2) in order to at least control the idle speed of the engine.Type: ApplicationFiled: March 17, 2008Publication date: April 28, 2011Applicant: HUSQVARNA ABInventors: Mikael Larsson, Bo Carlsson, Björn Landén, Mats Lavenius
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Publication number: 20110085955Abstract: A CO2 capture system 200 including a system for removing NO2 from a first gas stream 210 before CO2 capture is disclosed. The CO2 capture system 200 includes a protection bed 220 and a CO2 absorber 260. The protection bed 220 may absorb the NO2 or convert the NO2 to either NO or N2.Type: ApplicationFiled: October 12, 2009Publication date: April 14, 2011Applicant: ALSTOM TECHNOLOGY LTDInventor: Mikael LARSSON
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Patent number: 7921647Abstract: An internal combustion engine exhaust gas system includes an EGR arrangement adapted to lead a first flow of exhaust gas, the EGR flow, from an outlet side of the engine to an inlet side of the engine, an exhaust gas conduit adapted to lead away a second flow of exhaust gas, the exhaust flow, from the outlet side of the engine, and an energy recovering unit, such as a turbo, associated with the exhaust gas conduit. The unit is adapted to recover exhaust gas energy from the exhaust flow. The system includes a heat exchanger adapted to allow heat exchange between at least a part of the EGR flow and at least a part of the exhaust flow, the heat exchanger being associated with the exhaust gas conduit at a position downstream the energy recovering unit.Type: GrantFiled: June 29, 2005Date of Patent: April 12, 2011Assignee: Volvo Technology CorpInventors: Daniel Grunditz, Mikael Larsson, Arne Andersson, Lennart Cider, Edward Jobson, Martin Lunden, Peter Josza
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Patent number: 7910075Abstract: A method of protecting a NOx reducing catalyst 140 from fouling, where the NOx reducing catalyst 140 is downstream of a circulating fluidized bed (CFB) boiler 120 and upstream of a particulate removal device 150. The method includes introducing a SOx removing reagent 212 in a calcium to sulfur molar ratio greater than that required for SO2 removal from a flue gas 122 generated by a CFB 120, thereby preventing SO3 formation and fouling of the NOx reducing catalyst 140.Type: GrantFiled: July 22, 2009Date of Patent: March 22, 2011Assignee: ALSTOM Technologies Ltd.Inventors: Lawrence J. Czarnecki, Mikael Larsson
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Publication number: 20100263950Abstract: A coupling device and a coupling mechanism is provided for selectively coupling of an electric drive to a wheel axle of a vehicle. The coupling device includes, but is not limited to an output gear connected to the wheel axle, an input gear connected to the electric motor. A synchronizer is adapted to contactlessly minimize a difference of the input gear's and the output gear's angular velocity below a predefined threshold, and a synchronizing member is adapted to frictionally engage with the input gear and/or with the output gear when the difference in angular velocity of input gear and output gear is below the predefined threshold.Type: ApplicationFiled: January 15, 2010Publication date: October 21, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Mikael LARSSON, Erik STEN, Hans-Martin DURINGHOF, Gabriel TRÖNNBERG, Mats STRANDBERG
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Publication number: 20100252011Abstract: Method for controlling fuel metering in a carburetor or a low pressure injection system of an internal combustion engine when the engine is operating at idle speed, the method includes the steps of: a) monitoring the engine speed; b) determining a first variable (A) based on a first moving average algorithm using the monitored engine speed as input data; c) determining a second variable (B) based on a second moving average algorithm using the monitored engine speed as input data, where the first moving average algorithm is arranged to react faster to an engine speed change than the second moving average algorithm; d) comparing the second variable (B) to the first variable (A), where if 1) the second variable (B) is higher than the first variable (A): the fuel metering is set in a first leaner setting, and where if 2) the second variable (B) is lower than the first variable (A): the fuel metering is set in a second richer setting.Type: ApplicationFiled: September 21, 2007Publication date: October 7, 2010Applicant: HUSQVARNA ABInventors: Bo Carlsson, Mikael Larsson
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Patent number: 7699039Abstract: A method for controlling an ignition system of an internal combustion engine having a primary firing pulse generator for charging a capacitor. An electronic switch is included for discharging the capacitor via an ignition coil to generate an ignition voltage. A microcomputer operates the switch to control the ignition timing of the generator. The microcomputer is in communication with a speed sensor that detects the rotational speed of the engine and a speed limitation control that limits the engine speed to a limitation speed below the clutch-in speed of an included centrifugal clutch. The speed limitation control is active or activated when one of either starting the engine or an operating problem of the power tool is detected. The speed limitation control is deactivated when a low speed state of the engine is detected.Type: GrantFiled: January 1, 2008Date of Patent: April 20, 2010Assignee: Husqvarna ABInventors: Bo Carlsson, Mikael Larsson, Lars Andersson, Tore Aronsson
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Publication number: 20100021363Abstract: A method of protecting a NOx reducing catalyst 140 from fouling, where the NOx reducing catalyst 140 is downstream of a circulating fluidized bed (CFB) boiler 120 and upstream of a particulate removal device 150. The method includes introducing a SOx removing reagent 212 in a calcium to sulfur molar ratio greater than that required for SO2 removal from a flue gas 122 generated by a CFB 120, thereby preventing SO3 formation and fouling of the NOx reducing catalyst 140.Type: ApplicationFiled: July 22, 2009Publication date: January 28, 2010Applicant: ALSTOM TECHNOLOGY LTD.Inventors: Lawrence J. Czarnecki, Mikael Larsson
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Publication number: 20090184480Abstract: In a method of operating a vehicle system for automatically adjusting the chassis height of a vehicle, height adjusting devices are operated for adjusting the chassis height in relation to one or more axles of the vehicle from a first height level to second height level. The operation of height adjusting devices is controlled by positioning identification devices so as to move the chassis from the first to the second height level in response to receiving from the position identification devices an indication to the effect that the vehicle is approaching or has arrived at one of a plurality of predetermined positions and/or positions fulfilling predetermined criteria. The predetermined positions may be defined by wireless position indicators to be detected by a position detector installed in the vehicle. The position identification devices can include a global navigation system.Type: ApplicationFiled: December 8, 2005Publication date: July 23, 2009Applicant: VOLVO LASTVAGNAR ABInventors: Mikael Larsson, Christian Oscarsson
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Publication number: 20090145399Abstract: A method for controlling a valve of a crank case scavenged internal combustion engine includes determining a valve control sequence, wherein the valve is controlled in consecutive periods of revolutions each having a period length of at least ten revolutions, and controlling the valve according to the valve control sequence to adjust the ratio of fuel to air in a combustible mixture delivered to an engine combustion chamber. Determining the valve control sequence for each period includes providing a number of valve shut-off positions, wherein the number of valve shut-off positions corresponds to an amount of fuel or air to be supplied to the engine during the corresponding period, and determining which revolutions of the period that the valve is to be closed.Type: ApplicationFiled: May 14, 2007Publication date: June 11, 2009Applicant: Husqvarna ABInventors: Bo Carlsson, Mikael Larsson
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Patent number: 7540738Abstract: The invention relates to an arrangement for the production of a three-dimensional product, which arrangement comprises a work bench on which the said three-dimensional product is to be constructed, a powder dispenser which is arranged to apply a thin layer of powder onto the work bench to create a powder bed, an irradiation gun for transmitting energy to the powder so that melting of the powder takes place, the arrangement comprising a casing within which the pressure is reduced in relation to the atmospheric pressure and within which the work bench and the irradiation gun are located, with the powder dispenser, or a supply pipe connected to the powder dispenser, being arranged partially outside the casing.Type: GrantFiled: December 10, 2003Date of Patent: June 2, 2009Assignee: Arcam ABInventors: Morgan Larsson, Mikael Larsson