Patents Assigned to AB Volvo
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Patent number: 7048510Abstract: A propeller spinner (5) for a marine propeller (1) having multiple propeller blades (2) attached to a propeller hub (3) that is adapted for attachment to a propeller shaft (4) and includes a sacrificial anodic material for protecting the propeller shaft (4) and/or propeller hub (3) from corrosion. There is included a hollow spinner cone (6) made of a non-anodic material and the spinner cone (6) has at least one perforation in its outer peripheral surface. An anodic insert body (9) that is made of the sacrificial anodic material constitutes an insert body (9) that is substantially contained within the hollow spinner cone (6). The insert body (9) has at least one radical protrusion (10) extending at least partially through said perforation (7) in the spinner cone (6).Type: GrantFiled: December 25, 2004Date of Patent: May 23, 2006Assignee: AB Volvo PentaInventor: Benny Hedlund
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Patent number: 7045232Abstract: A fuel-cell system, particularly a drive system for a motor vehicle, includes an autothermal reformer unit for producing hydrogen from a raw material in order to operate a downstream fuel cell unit. An oxidation device for converting carbon monoxide into carbon dioxide is arranged between the reformer unit and the fuel-cell unit. The fuel-cell system further includes a two-stage compressor, which supplies a first pressure to a cathode of the fuel cell unit by a first stage and supplies a second pressure to the reformer unit by a second stage.Type: GrantFiled: May 17, 1999Date of Patent: May 16, 2006Assignees: Volkswagen AG, AB VolvoInventors: Olaf Duebel, Axel Koenig, Per Ekdunge, Peter Alin, Jessica Grace Reinkingh, Ronald Mallant
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Patent number: 7040940Abstract: Rotatable lifting surface devices, such as propellers, impellers, and turbines, and blades for such devices use camber profiles and pitch distributions to obtain performance from flexible devices and blades, made from materials like polymers and polymer-composites and even metals, that is substantially the same as the performance of stiff devices and blades, usually made from materials like steel and aluminum.Type: GrantFiled: April 20, 2004Date of Patent: May 9, 2006Assignee: AB VolvoInventor: A. Christopher Mueller
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Patent number: 7033234Abstract: A method of steering a planning V-bottomed boat with double individually steerable outboard drive units with underwater housings (6), which extend down from the bottom (1) of the boat. When running at planning speed straight ahead, the underwater housings are set with “toe-in”, i.e. inclined towards each other with opposite angles (alpha) of equal magnitude relative to the boat centre line (b). When turning, the inner drive unit is set with a greater steering angle than the outer drive unit.Type: GrantFiled: April 29, 2003Date of Patent: April 25, 2006Assignee: AB Volvo PentaInventors: Lennart Arvidsson, Oddbjörn Hallenstvedt, Jukka Tuuliainen
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Patent number: 6981929Abstract: Vehicle differential with a differential housing (5) consisting of two pressed sheet metal halves (6). Each sheet metal half is made with radial, gutter-shaped depressions, which are limited at their outer ends by wall portions (14). A differential pinion shaft (15) is received in the depressions between the sheet metal halves. The wall portions (14) limit the axial movement of the differential pinion shaft.Type: GrantFiled: April 19, 2001Date of Patent: January 3, 2006Assignee: AB VolvoInventors: Grzegorz Janiszewski, Jan Christian Holmström
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Publication number: 20050186862Abstract: System and method for providing a hydraulic system (1) arranged between a first marine propulsion device (2, 42) and a second marine propulsion device (3, 43). Each propulsion device is arranged to rotate about a respective axis (6, 7, 46, 47) at a distance from one another. The system (1) includes a first hydraulic piston-cylinder device (8, 50) and a second hydraulic piston-cylinder device (13, 55) arranged between the second propulsion device (2, 3, 42, 43) and an element (12, 17, 54, 59) fixed in relation to the axis (6, 7, 46, 47). Connecting the piston-cylinder devices (8, 13, 50, 55) to one another via a first hydraulic circuit (18, 60) and a second hydraulic circuit (19, 61) leads to rotation of one propulsion device (2, 3, 42, 43) resulting in rotation of the other propulsion device (2, 3, 42, 43). The method and arrangement afford a tie bar function.Type: ApplicationFiled: May 5, 2005Publication date: August 25, 2005Applicant: AB VOLVO PENTAInventors: Benny HEDLUND, Mikael ASBERG
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Patent number: 6883309Abstract: Method and apparatus for treating a gas flow including guiding the gas flow through a gas treatment unit (18) adapted for filtering particles in the gas flow, and eliminating the particles in the gas treatment unit (18). Particles are filtered from the gas flow by means of accumulating the particles in, or in connection with, a number of ducts (21) forming part of the gas treatment unit (21) during passage of the gas flow through the gas treatment unit (18). The temperature of the gas flow is controlled along the ducts (21) to a value that provides combustion of the particles, and eliminates the filtered particles in the gas treatment unit (18) by means of combustion in the ducts (21). An improved treatment of a gas flow is provided, in particular in connection with exhaust gas purification in a diesel engine, for eliminating particles in its exhaust gases.Type: GrantFiled: April 4, 2003Date of Patent: April 26, 2005Assignees: AB Volvo, Enklaven ABInventors: Edward Jobson, Björn Heed
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Publication number: 20050084382Abstract: A pulling marine propeller (1) including multiple propeller blades (4) attached to a propeller hub (5). The propeller hub (5) is attachable to a propeller shaft (9) extending from a drive housing (10) located downstream of the propeller (1). The invention is especially characterized by the fact that the propeller hub (5) is provided with an annular, radially outwardly flared peripheral portion (11) at an aft end (12) thereof. The flared portion (11) is arranged to axially overlap a front end shoulder portion (13) of the drive housing (10).Type: ApplicationFiled: December 25, 2004Publication date: April 21, 2005Applicant: AB VOLVO PENTAInventor: Staffan MANSSON
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Publication number: 20050084383Abstract: A propeller spinner (5) for a marine propeller (1) having multiple propeller blades (2) attached to a propeller hub (3) that is adapted for attachment to a propeller shaft (4) and includes a sacrificial anodic material for protecting the propeller shaft (4) and/or propeller hub (3) from corrosion. The invention includes a hollow spinner cone (6) made of a non-anodic material and the spinner cone (6) has at least one perforation in its outer peripheral surface. An anodic insert body (9) that is made of the sacrificial anodic material constitutes an insert body (9) that is substantially contained within the hollow spinner cone (6). The insert body (9) has at least one radical protrusion (10) extending at least partially through said perforation (7) in the spinner cone (6).Type: ApplicationFiled: December 25, 2004Publication date: April 21, 2005Applicant: AB VOLVO PENTAInventor: Benny HEDLUND
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Patent number: 6845612Abstract: Method and arrangement for treatment of a gas-flow in connection with a NOx reducing catalyst (18) that include guiding the gas-flow through an exhaust gas treatment unit (18) having several ducts (21) with exchange of heat between the ducts (21). The ducts (21) are connected to an inlet and an outlet, respectively, at the exhaust gas treatment unit (18) so that the gas-flow occurs during exchange of heat between incoming and outgoing flows. Reduction of NOx compounds in the gas-flow is accomplished by means of the NOx reducing catalyst (18). An adaptation of the temperature of the exhaust gas treatment unit (18) is affected to the prevailing operating condition of the NOx reducing catalyst (18). The method and apparatus enable provision of the required exhaust gas temperature for NOx reduction, while also accommodating the temperature limitations imposed by sulphur absorption and regeneration subsystems.Type: GrantFiled: July 1, 2002Date of Patent: January 25, 2005Assignee: Enklaver AB and AB VolvoInventors: Edward Jobson, Mikael Larsson, Björn Heed, Stefan Witte
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Publication number: 20050005595Abstract: Abstract of the Disclosure Method and apparatus for treating a gas flow including guiding the gas flow through a gas treatment unit (18) adapted for filtering particles in the gas flow, and eliminating the particles in the gas treatment unit (18). Particles are filtered from the gas flow by means of accumulating the particles in, or in connection with, a number of ducts (21) forming part of the gas treatment unit (21) during passage of the gas flow through the gas treatment unit (18). The temperature of the gas flow is controlled along the ducts (21) to a value that provides combustion of the particles, and eliminates the filtered particles in the gas treatment unit (18) by means of combustion in the ducts (21). An improved treatment of a gas flow is provided, in particular in connection with exhaust gas purification in a diesel engine, for eliminating particles in its exhaust gases.Type: ApplicationFiled: April 4, 2003Publication date: January 13, 2005Applicants: AB VOLVO, ENKLAVEN ABInventors: Edward JOBSON, Bjorn HEED
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Publication number: 20050002788Abstract: Apparatus for adapting a propeller system including a propeller shaft (15, 16) and a propeller (7, 8) adapted to be mounted on the propeller shaft (15, 16). The propeller system includes a propeller (7, 8) connected in a rotationally fixed manner to a propeller shaft (15, 16), the propeller shaft (15, 16) having a portion provided with splines (19, 20) which cooperate with corresponding splines (25, 28) inside the hub (23, 26) of the propeller (7, 8) in order to obtain the rotationally fixed connection, where the splines (19, 20) on the propeller shaft (15, 16) and in the hub (23, 26) of the propeller (7, 8) are helical, with a predetermined oblique angle (?, ?). The invention also relates to a propeller shaft (15, 16) and a propeller (7, 8) which are intended to be used in the propeller system.Type: ApplicationFiled: August 27, 2004Publication date: January 6, 2005Applicant: AB VOLVO PENTAInventors: Anders RYDBERG, Stefan NILSSON
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Patent number: 6820587Abstract: Process which, by spray-controlled, directly injected combustion with the aid of step-by-step technical development of the whole of the combustion system, achieves an intensified mixing process during injection and after-burning, which speeds up soot oxidation during various stages so effectively that the engine can be run with sufficiently high EGR content for desired NOx and soot content down to ultra-low emissions, at the same time as parameters which control the efficiency are decoupled from measures for desired emission level, thereby enabling optimum efficiency to be attained for the process.Type: GrantFiled: August 19, 2002Date of Patent: November 23, 2004Assignee: AB VolvoInventors: Anders Hoglund, Ulla Sarnbratt, Ingemar Magnusson, Jan Eismark
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Publication number: 20040149003Abstract: Method and arrangement for accommodating indirect ascertainment of fill-characteristics of fluid tanks on marine vessels. The invention includes providing an experientially-based mapping of volume characteristics of a fluid tank positioned on a marine vessel that are correlated with respect to measurable fluid surface positions within the fluid tank. In consideration of this volume characteristic mapping, fluid fill condition information is output for operator use based on quantification of a parameter other than sensed fluid level in the fluid tank. While it is contemplated that the other parameter may be any characteristic that readily reads back to the volume characteristic mapping, it is particularly advantageous, and a preferred embodiment of the invention, that the other parameter be a volumetric quantification of fluid consumed out of the tank that can be compared to an earlier ascertained tank volume.Type: ApplicationFiled: January 31, 2003Publication date: August 5, 2004Applicant: AB Volvo PentaInventor: Per Nestvall
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Patent number: 6712036Abstract: A method of controlling the fuel injection in an internal combustion engine (1) having a piston (3), which passes to and for in a cylinder (2) between an upper and a lower dead center, and an injection nozzle (4), which is disposed in the cylinder (2), the method including the steps whereby a primary injection of fuel is realized in the cylinder (2), which fuel is ignited and causes the piston (3) to be moved in the direction of the lower dead center in the cylinder (2), and whereby a post-injection of a fluid is realized in the cylinder (2). The injection pressure of the fluid in the post-injection is higher than the injection pressure of the fuel in the primary injection.Type: GrantFiled: August 6, 2002Date of Patent: March 30, 2004Assignee: AB VolvoInventors: Arne Andersson, Anders Hoglund, Jan Eismark, Bo Svensson
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Patent number: 6705907Abstract: Boat propeller drive with an underwater housing which is connected in a fixed manner to a boat hull and has tractor propellers arranged on that side of the housing facing ahead. In the rear edge of the underwater housing, a rudder blade is mounted for pivoting about a vertical rudder axis.Type: GrantFiled: January 2, 2002Date of Patent: March 16, 2004Assignee: AB Volvo PentaInventor: Benny Hedlund
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Patent number: 6672421Abstract: A motor vehicle arrangement having a control device for controlling the vehicle. The control device is at least adjustable in the vertical direction. The control device has a parking position in which the vehicle cannot be driven and there is no operative connection for starting, accelerating or braking the vehicle etc. from the operating controls of the vehicle. The control device is releasable from the parking position to a driving position using an authorization verification element which adjusts the driving position. In the driving position, an operative connection is established between the operating control elements of the vehicle and corresponding actuating elements.Type: GrantFiled: June 20, 2001Date of Patent: January 6, 2004Assignee: AB VolvoInventors: Göran Larsson, Anders Gunnarsson, Simon Lamarre, Karin Reikerås, Kjell Reikerås, Einar Lenartsson, Birgitta Thorsson, Åke Bergqvist
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Publication number: 20030221420Abstract: Method and apparatus for treating a gas flow including guiding the gas flow through a gas treatment unit (18) adapted for filtering particles in the gas flow, and eliminating the particles in the gas treatment unit (18). Particles are filtered from the gas flow by means of accumulating the particles in, or in connection with, a number of ducts (21) forming part of the gas treatment unit (21) during passage of the gas flow through the gas treatment unit (18). The temperature of the gas flow is controlled along the ducts (21) to a value that provides combustion of the particles, and eliminates the filtered particles in the gas treatment unit (18) by means of combustion in the ducts (21). An improved treatment of a gas flow is provided, in particular in connection with exhaust gas purification in a diesel engine, for eliminating particles in its exhaust gases.Type: ApplicationFiled: April 4, 2003Publication date: December 4, 2003Applicant: AB VOLVOInventors: Edward Jobson, Bjorn Heed
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Patent number: 6638124Abstract: Method and arrangement for a marine combustion engine exhaust system. The arrangement includes at least two substantially upstanding exhaust pipe arms that are coupled together in common closed fluid communication with a stem exhaust pipe. A pressure equalizer is fluidly connected between the upstanding exhaust pipe arms. The pressure equalizer is configured to provide sufficient fluid passage from each exhaust pipe arm to another to prevent flow back of sea water to a marine combustion engine associated therewith.Type: GrantFiled: July 22, 2002Date of Patent: October 28, 2003Assignee: AB Volvo PentaInventors: George Zoubul, William M. Cahoon
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Publication number: 20030198856Abstract: Method and apparatus for establishing a fuel cell unit (10) in the form of an extruded monolith having channels (14), of which every second constitutes a fuel channel (14a) and every other second an oxygen channel (14b). The channels (14) are designed in such a manner that the fuel channels (14a) are displaced laterally in relation to the oxygen channels (14b), in such a way that all the fuel channels (14a) protrude a certain distance from the end points of all the oxygen channels 14b) and all the oxygen channels (14b) protrude a certain distance from the end points of all the fuel channels (14a). The distance is less than the length of respective channels. The invention also relates to a fuel cell device that includes several of the fuel cell units (10) that together establish an enhanced system of fuel cell units that lend themselves to compact.Type: ApplicationFiled: March 19, 2003Publication date: October 23, 2003Applicant: VOLVO TEKNISK UTVECKLING AB AND VOLVO PERSONVAGNAR ABInventors: Edward Jobson, Staffan Lundgren