Patents Assigned to Volvo Personvagnar AB
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Patent number: 6966310Abstract: Method and arrangement for distributing exhaust gases or gases which are ventilated from a crankcase or an evaporator of a combustion engine having a cylinder head (8) with intake valves and an intake manifold (3) with a flange (9) for mounting on the cylinder head. The intake manifold is provided with at least one collecting channel (11) which extends across each intake pipe of the intake manifold. The ventilation is made by sucking the gases from the collecting channel (11) directly into each intake pipe through a non-return valve (16, 17, 18, 19) arranged in connection with each intake pipe, which non-return valve is controlled by pressure pulses from the intake valves.Type: GrantFiled: May 3, 2001Date of Patent: November 22, 2005Assignee: Volvo Personvagnar ABInventor: Mats Moren
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Patent number: 6870335Abstract: The invention relates to a method for taking up play in a drive system when a change in load occurs. The drive system comprises a drive engine, preferably an internal combustion engine, coupled to a drive line in a vehicle, an electric motor which acts on the drive engine and/or the drive line with a driving or braking torque, and which motor is coupled to the drive engine or constitutes a part of the drive line, and a control system for controlling the electric motor. The control system sends a pulse to the electric motor when a change in load occurs, a torque pulse taking up play in the drive line before a torque stage from the drive engine begins. The size of the pulse is selected from a matrix stored in a memory, depending on the current operating conditions. The invention also relates to an arrangement for implementing the method.Type: GrantFiled: September 7, 2001Date of Patent: March 22, 2005Assignee: Volvo Personvagnar ABInventors: Johan Lindström, Krister Fredriksson
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Patent number: 6868751Abstract: A parking brake including a lever (3) coupled to a brake wire (9) included in the brake system. The lever (3) is arranged to work in two steps to achieve the desired braking power. In the first step the lever is arranged to make a translational movement for taking up wire slack in the brake system, while in the second step the lever is arranged to execute a rotation whereby the force transmission to the wire (9) takes place at a higher ratio than in the first step.Type: GrantFiled: March 23, 2001Date of Patent: March 22, 2005Assignee: Volvo Personvagnar ABInventors: Fredrik Sundqvist, Pär Marklund
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Patent number: 6763778Abstract: A motor vehicle designed to carry a foldable warning triangle that can be removed from the vehicle. The vehicle has an opening defined by a boundary edge and covered by a hatch such as a trunk or hood. The hatch is arranged so that it can be moved between a closed position and an open position. The fold-up warning triangle is secured in an edge portion of the hatch that bears against the boundary edge of the opening when the hatch is in the closed position. A warning surface of the warning triangle is visible to other traffic when the hatch is opened. In a preferred embodiment, the fold-up warning triangle is releasably placed in a recess in the edge portion of the hatch. The recess has a wall interrupted by at least one hole through which the warning surface is visible to other traffic when the hatch is open.Type: GrantFiled: June 15, 2001Date of Patent: July 20, 2004Assignee: Volvo Personvagnar ABInventors: Åke Bergquist, Göran Larsson, Anders Gunnarson, Simon Lamarre, Karin Reikerås, Kjell Reikerås, Einar Lennartsson, Birgitta Thorsson
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Patent number: 6756090Abstract: Apparatus is disclosed for molding a load-bearing element of reinforced thermoplastic material provided from a material charge including a thermoplastic matrix material of a non-permeable plastic membrane and a reinforcement material, the apparatus including a molding tool having first and second molding surfaces which are juxtaposed in a closed molding position producing at least one internal cavity having dimensions corresponding to the load-bearing element, a heater for heating the matrix material to a temperature above its softening temperature, a pressurizer for providing a pressure or vacuum force to urge the matrix material against at least one of the molding surfaces with the reinforcement material therebetween in order to urge the reinforcement material against one of the first and second molding surfaces to mold and consolidate the material charge. Methods for molding these load-bearing elements and novel load-bearing elements themselves are also disclosed.Type: GrantFiled: February 4, 2000Date of Patent: June 29, 2004Assignee: Volvo Personvagnar ABInventor: Gunnar Westerlund
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Patent number: 6736579Abstract: A screw device, an assembly for theft-proofing vehicle wheels, and a motor vehicle with theft-proofed vehicle wheels is disclosed. The screw device has a screw with a head and a threaded portion intended to be screwed into a thread of a wheel hub, a sleeve and a lock member. The threaded portion is intended to be screw into the thread of the wheel hub via a recess arranged in a central portion of a vehicle wheel. The lock member is an endless, smoothly undulating or curved lock member. The dimensions of the sleeve are adapted to the dimensions of the recess so that regions of the central portion adjacent to the recess encompass substantially entirely and closely a circumference of the sleeve when the threaded portion has been screwed into the thread. The invention can be applied to all types of vehicle wheels, and is particularly advantageous for exclusive private cars with special rims.Type: GrantFiled: June 15, 2001Date of Patent: May 18, 2004Assignee: Volvo Personvagnar ABInventors: Christian L{haeck over (o)}nnqvist, Ulf Andersson, Lars Lindblad, Conny Turesson, Björn Sandblom
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Patent number: 6722290Abstract: An arrangement for detachable mounting of a table on a vehicle is disclosed. The arrangement includes a supporting element arranged for locking to the table and a first locking element arranged in the supporting element for locking the supporting element to the vehicle. The supporting element, by the use of the first locking element, is arranged for fastening to a second locking element designed in the vehicle whereby the supporting element and the first locking element solely carries the table. This provides an enhanced arrangement for stable and simple mounting of a table to a vehicle.Type: GrantFiled: July 2, 2002Date of Patent: April 20, 2004Assignee: Volvo Personvagnar ABInventor: Ulf Wetterlund
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Patent number: 6684672Abstract: A cylindrical lock arrangement of the kind having a cylindrical housing attached to a door and a lock cylinder with lever tumblers provided to cooperate with a lock device, whereby the lock device is arranged to be actuated via a carrier provided to the cylinder lock. The invention has a connection device for transmission of force from the lock cylinder to the carrier is provided to be axially displaced in relation to the lock cylinder from a neutral position and in direction towards this during rotation of the lock cylinder with a fitting key. The connection device is provided to be brought to an active position in friction engagement with the carrier not until after the axial displacement from the neutral position, after which locking and unlocking respectively of the lock device is performed by further rotation of the lock cylinder by means of the key.Type: GrantFiled: June 7, 2001Date of Patent: February 3, 2004Assignee: Volvo Personvagnar ABInventors: Stig Hermansson, Helmut Ponn
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Patent number: 6673469Abstract: Arrangement (1) for decreasing galvanic corrosion between metal components that includes at least a first component (2) in which a first metal is a part, and at least a second component (3) in which a second metal is a part, whereby the first metal has a higher normal-electrode potential (e0) than the second metal. The first component (2) is intended, after mounting, to be in electrical contact with the second component (3). The first component (2) is coated with a substantially continuous surface layer (4) that is adjusted to give the second component (3) an insignificant galvanic corrosion velocity after mounting. The invention is preferably applied in association with attachment elements such as bolt or screw joint reinforcements, which include a more noble metal than the component or the components with which the attachment element should be in contact with after mounting, and is particularly, preferred for vehicle components.Type: GrantFiled: December 28, 2001Date of Patent: January 6, 2004Assignee: Volvo Personvagnar ABInventors: Malte Isaccsson, Henrik Hyttel, Thomas Hermansson, Stig Andersen, Kalsten Andersen, Mikael Fransson
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Patent number: 6648107Abstract: Apparatus for a lever (6) for controlling a parking brake including brake units and an electrically driven tightening means for applying or releasing a braking force on the said brake units. Characteristic of the invention is that a means is arranged to detect the position of the lever and produce control signals to a first electric motor (12) for generating a brake force corresponding to the position of the lever. The lever can be adjusted manually. Further there is a second electric motor (49) intended to automatically control the lever (6) depending on incoming control signals. In the fully applied position the lever (6) is locked against manual adjustment.Type: GrantFiled: March 31, 2001Date of Patent: November 18, 2003Assignee: Volvo Personvagnar ABInventors: Fredrik Lundholm, Jesper Marklund
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Patent number: 6641151Abstract: A suspension system for vehicle wheels is disclosed including a tubular spring, a link arm for connecting a wheel frame for mounting the wheel to a vehicle body to the wheel spindle carrying the wheel itself, the link arm disposed at one end of the tubular spring and a stabilizer disposed inside the tubular spring and adapted to protrude from the end of the tubular spring.Type: GrantFiled: January 21, 2000Date of Patent: November 4, 2003Assignee: Volvo Personvagnar ABInventor: Sigvard Zetterström
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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
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Patent number: 6629580Abstract: The invention relates to a device in a silencer unit of an automotive vehicle, for suppressing unwanted noise originating from an exhaust gas flow from the vehicle engine, said silencer unit being terminated by an end pipe, through which said exhaust gas flow is conveyed to the surroundings. The invention is characterized by the end pipe comprising at least one perforated section having a predetermined extension (L2) in the longitudinal direction of the end pipe, and being positioned downstream of a point (L3) along the end pipe where there is substantially no turbulence in the exhaust flow. Through the invention, an improved silencer unit is provided, with which predetermined requirements for comfort directed low-frequency suppression of the exhaust flow noise, as well as statutory requirements for high-frequency absorption of the noise, are fulfilled.Type: GrantFiled: June 30, 2001Date of Patent: October 7, 2003Assignee: Volvo Personvagnar ABInventors: Ulf Nilsson, Pekka Saviharju, Per-Ola Petersson
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Patent number: 6619303Abstract: The invention relates to a method and arrangement for cleaning filters in different types of liquid containers. The arrangement includes a pump (4) provided with a suction conduit (5) and which pump is connected to a filter (7) and an outlet conduit (3), whereby the components are placed in a sealed liquid container (1), and that the pump (4) can be reversed when a predetermined condition is fulfilled, whereby pollutants from said filter (7) is pumped to a collection unit (17) connected to said suction conduit (5).Type: GrantFiled: April 17, 2001Date of Patent: September 16, 2003Assignee: Volvo Personvagnar ABInventor: Jan Hultqvist
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Patent number: 6601918Abstract: An adjustable chair for vehicles in which the frame structure is easy to manufacture and includes few components while still providing adjustment in several directions. By adjustment in several directions, it is meant, for example, adjustment of the length of the chair seat, as well as the height of the back of the chair. By manufacturing each frame in one piece with integrated attachments and similar, it is also possible to utilize the same frames for both manually and electrically operated chairs. The chair includes a seat part and a back part each of which have several possibilities for adjustment for individual and ergonomic adaption of the chair; including the aspects of length, height, side support and lumbar support. An operator is provided for adjusting the seat and the back parts, together with components that form parts thereof.Type: GrantFiled: February 13, 2001Date of Patent: August 5, 2003Assignee: Volvo Personvagnar ABInventor: Ingemar Mattsson
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Patent number: 6604032Abstract: A diagnostic system in an engine management system is provided for generating a diagnostic trouble code (DTC) to indicate the operational status of a component or a sub-system. The diagnostic system includes a diagnostic function module (DF module) for each DTC or a group of related DTCs associated with a component or sub-system. The DF module includes means for executing an evaluation routine to evaluate a component/sub-system to which the DTC of the specific DF module relates, and a dynamic scheduler for determining which DF module may be allowed to execute an evaluation routine at a particular time.Type: GrantFiled: December 22, 1999Date of Patent: August 5, 2003Assignee: Volvo Personvagnar ABInventor: Peter Möller
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Patent number: 6577404Abstract: An arrangement and method for measuring surface irregularities of an object comprising at least one source of light arranged to illuminate the object from at least two different positions at a small angle of incidence towards the object, a camera arranged to measure the shadow formation generated by the illumination of the surface microstructure, and an evaluator for determining the surface microstructure from the generated shadow formation by means of signal processing of an input signal from the camera.Type: GrantFiled: October 9, 2001Date of Patent: June 10, 2003Assignee: Volvo Personvagnar ABInventors: Erland Max, Peter Larsson
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Patent number: 6571551Abstract: A device for use with a lean-burning internal combustion engine is disclosed. The device is comprised of a means for generating an air/fuel mixture for the cylinders of the engine in order to provide at least stratified and homogenous operation, an exhaust system connected to the engine, and an NOX-adsorbing catalytic converter arranged in the exhaust system. The device additionally has a heat exchanger that is fitted upstream of the catalytic converter, wherein the heat exchanger is used to adapt the temperature of the exhaust gas from the engine to an operating state of the catalytic converter.Type: GrantFiled: May 19, 2001Date of Patent: June 3, 2003Assignee: Volvo Personvagnar ABInventors: Staffan Lundgren, Jacob Claesson, Maria Hansson, Lars Sandberg, Mikael Larsson
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Patent number: 6564902Abstract: A device for a sound-absorbing unit for reduction of sounds from a flowing gas stream, including a first flow path and a second flow path for said gas stream and a switch-over device for alternating guiding of the gas stream along the first flow path and the second flow path, respectively. A detection device for detection of the pressure of said gas stream, and that the switch-over device comprises an adjustable throttle for blocking of the first flow path when a pressure which is below a predetermined limit value is detected, wherein the gas stream is guided through said second flow path, and that the throttle is adapted to be opened if said limit value is exceeded, wherein the gas stream is guided along said first flow path. By means of the invention, an improved adjustable device is provided for mufflers for vehicles, said device providing an effective sound absorption, a small mounting volume and a low back pressure during high engine speeds.Type: GrantFiled: May 13, 2000Date of Patent: May 20, 2003Assignee: Volvo Personvagnar ABInventor: Josef Saberi
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Patent number: 6557694Abstract: A conveyor system (10) for transporting a vehicle skid (14). The system includes a frame structure (24) extending along a longitudinal axis (26) and a plurality of support rollers (30) carried by the frame section. The support rollers are journaled for rotation about axes (32) transverse to the longitudinal axis and have a peripheral support surface (34) for supporting the vehicle skid. The system further includes drive means (36, 38, 42) for displacing the vehicle skid (14) along the frame structure (24) . To permit rapid acceleration and braking of the vehicle skid, the drive means includes at least one continuous drive belt (36) having a toothed inner surface for engagement with a drive gear (38) and a toothed outer surface for engagement with a projection (40) on the vehicle skid.Type: GrantFiled: May 3, 2001Date of Patent: May 6, 2003Assignee: Volvo Personvagnar ABInventor: Jan Hansen