Patents Assigned to Ohlins Racing AB
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Patent number: 12241522Abstract: The present disclosure relates to an adjustable bleed valve assembly for a shock absorber. The bleed valve assembly includes: a first adjustable bleed valve, and a second adjustable bleed valve arranged in series with the first adjustable bleed valve, wherein the first adjustable bleed valve and the second adjustable bleed valve are each pressure independently adjustable between a first open state and a second open state, wherein each adjustable bleed valve is adapted to throttle a damping fluid in the piston rod more in the second open state than in the first open state, wherein the first adjustable bleed valve and the second adjustable bleed valve are each adjustable between the first open state and the second open state independently from one another. An adjustment device and a method for adjusting the bleed valve assembly is also provided.Type: GrantFiled: August 20, 2020Date of Patent: March 4, 2025Assignee: Öhlins Racing ABInventor: Magnus Wallén
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Patent number: 11981392Abstract: The present disclosure relates to a system for control of front and/or rear suspensions of a bicycle. The system comprises at least one sensor and one control unit. The at least one sensor is connected to the control unit and the control unit is configured to receive information from the sensor, determine a ride state of the bicycle from the information and send a suspension setting signal to the front and/or the rear suspension corresponding to the ride state. The control unit is further configured to establish an event, the event comprising information about said ride state of the bicycle and a suspension setting signal to the front and/or the rear suspension corresponding to the ride state and defining a minimum duration in time for the event.Type: GrantFiled: July 12, 2019Date of Patent: May 14, 2024Assignee: Öhlins Racing ABInventors: Torkel Sintorn, Erik Waltersson
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Patent number: 11976707Abstract: The present disclosure relates to a shock absorber (100) including a cylinder (7), a piston rod (2) and a piston (6) attached to the piston rod (2). The piston (6) is arranged in the cylinder (7) and a damping chamber including a damping media is defined in the cylinder (7). The shock absorber (100) further includes a gas spring in functional connection with the damping chamber and at least one characteristic of the gas spring is adjustable by a user-adjustable feature arranged within the piston rod, wherein the user adjustable feature affects the enclosing area of the damping chamber, thereby indirectly affecting the gas spring through the functional connection.Type: GrantFiled: July 12, 2019Date of Patent: May 7, 2024Assignee: Öhlins Racing ABInventor: Torkel Sintorn
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Patent number: 11661993Abstract: A shock absorber and method of controlling a shock absorber, wherein the shock absorber comprises damper body having an inner tube and an outer tube and a piston rod having a main piston arrangement arranged inside the inner tube. The shock absorber further comprises two separate electrical continuously controlled valves (CES1, CES2), one for compression and one for rebound flow, arranged with passive valves coupled in series with and downstream of the electronically controlled valves and with a communication chamber coupling these valves to a pressurizing chamber.Type: GrantFiled: May 7, 2019Date of Patent: May 30, 2023Assignee: Öhlins Racing ABInventor: Arnold Hovén
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Patent number: 11592074Abstract: A shock absorber including a damper and a valve assembly for throttling fluid flow between a compression damper chamber and a pneumatic spring, with a valve assembly extending from an inner end portion of the damper into the compression damper chamber along a longitudinal central axis of the damper. A piston assembly is provided that includes an inner space which is open to the compression damper chamber and configured to receive and sealingly engage a distal portion of the valve assembly at an inner operational range of stroke and to disengage the valve assembly upon movement outside the inner operational range of stroke. The sealing engagement between the distal portion of the valve assembly and the inner space divides the compression damper chamber into an inner volume within the inner space and an outer volume in front of the piston assembly.Type: GrantFiled: July 12, 2019Date of Patent: February 28, 2023Assignee: Öhlins Racing ABInventor: Torkel Sintorn
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Patent number: 11535336Abstract: A saddle riding vehicle includes a swing arm in which front ends of arm sections and supporting a wheel are supported by a pivot shaft, and an electronic control suspension that is provided between the pivot shaft and the arm sections, that has a portion overlapping with the swing arm in side view of the vehicle and that includes a control valve section at an upper portion thereof. In the saddle riding vehicle, the control valve section is disposed on one lateral side in regard of the vehicle width direction of the upper portion of the suspension, and extends toward a vehicle width-directionally outer side from a side surface of the upper portion.Type: GrantFiled: June 23, 2020Date of Patent: December 27, 2022Assignees: Honda Motor Co., Ltd., Ohlins Racing ABInventors: Naoki Kuwabara, Yuta Ishizaka, Björn Bylund
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Publication number: 20220397176Abstract: The present disclosure relates to an adjustable bleed valve assembly for a shock absorber. The bleed valve assembly includes: a first adjustable bleed valve, and a second adjustable bleed valve arranged in series with the first adjustable bleed valve, wherein the first adjustable bleed valve and the second adjustable bleed valve are each pressure independently adjustable between a first open state and a second open state, wherein each adjustable bleed valve is adapted to throttle a damping fluid in the piston rod more in the second open state than in the first open state, wherein the first adjustable bleed valve and the second adjustable bleed valve are each adjustable between the first open state and the second open state independently from one another. An adjustment device and a method for adjusting the bleed valve assembly is also provided.Type: ApplicationFiled: August 20, 2020Publication date: December 15, 2022Applicant: Öhlins Racing ABInventor: Magnus Wallén
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Patent number: 10851903Abstract: Check valve assembly (1, 1?) for a shock absorber (100) comprising a housing (10), said housing (10) comprising a first volume (11), wherein a first pressure (P1) prevails; a second volume (12), wherein a second pressure (P2) prevails; a fluid passage (20) between said first (11) volume and said second (12) volume; and a spool (40) movably arranged in said housing (10) for movement back and forth between an first position, in which a flow of fluid through said fluid passage (20) is allowed, and a second position, in which the spool (40) closes the fluid passage (20). The check valve assembly further comprises a first biasing means (50) configured to bias the spool (40) towards the second position through at least first operational range (OR1) of the spool (40) in which first operational range the fluid passage (20) is open.Type: GrantFiled: March 22, 2017Date of Patent: December 1, 2020Assignee: Ohlins Racing ABInventor: Erik Hansson
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Patent number: 10801576Abstract: Valve arrangement for a shock absorber is described, comprising a valve housing (2) having a first (7) and a second port (8), a pilot chamber (3) being in fluid communication with the first (7) and/or second port (8), wherein a pilot pressure (Pp) is defined by a hydraulic pressure in the pilot chamber (3). The arrangement further comprises a main valve member (4) being axially movably arranged in the valve housing (2) and being arranged to interact with a main valve seat member (9) in order to restrict a main fluid flow between the first (7) and second ports (8) in response to the pilot pressure (Pp) acting on the main valve member (4).Type: GrantFiled: February 21, 2017Date of Patent: October 13, 2020Assignee: Ohlins Racing ABInventor: Arnold Hovèn
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Patent number: 10364861Abstract: A valve arrangement controls a flow of damping medium in a shock absorber. Pressurized damping fluid acts around a whole circumference of the slidable valve member and the impact of flow forces on the slidable valve member is minimized, which vastly decrease the disturbing axial forces and thereby achieves a more dependable valve arrangement with a reliable operation.Type: GrantFiled: October 12, 2015Date of Patent: July 30, 2019Assignee: Öhlins Racing ABInventors: Benny Ewers, Fredrik Larsson, Simon Ivarsson
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Patent number: 9409588Abstract: A device adjusts the rotational damping of a steering device such that the rotational damping varies depending on whether the rotational motion about a steering axis is caused by a force acting on the steering device of the vehicle or a force acting on the part(s) of the vehicle contacting the ground. The flow of hydraulic fluid in the steering damper partly or wholly is adjusted by a main valve unit that is coupled together with both an attaching part and a steering device. The opening area of the main valve unit is determined by a relative motion between the attaching part and the steering device such that the flow of the hydraulic fluid in a direction from and to the respective damping chambers of the steering damper is controlled depending on the cause of the rotational movement.Type: GrantFiled: May 5, 2011Date of Patent: August 9, 2016Assignee: Ohlins Racing ABInventors: Torkel Sintorn, Johan Nilsson, Leif Gustafsson Vallander, Thorleif Hansen, Joakim Sundevall
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Patent number: 9091319Abstract: The present invention provides a hydraulic shock absorber. A solid main piston is designed to slide in a damping cylinder parallel to the movement generated when the shock absorber is subjected to a compression or a rebound stroke, the main piston dividing the damping cylinder into a first damping chamber containing the piston rod and a second damping chamber which does not contain the piston rod. A pressurization reservoir is pressurized by a force acting on a moving piston. The pressurization reservoir is arranged outside the damping cylinder and oriented at an angle relative to the damping cylinder. Two separate, adjustable valves generate a damping force acting in opposition to the stroke movement by restricting a damping medium flow between the damping chambers. A fourth defined chamber is hydraulically connected via separate flow paths to both the first and the second damping chamber and the pressurization reservoir.Type: GrantFiled: February 4, 2008Date of Patent: July 28, 2015Assignee: Ohlins Racing ABInventors: Atsushi Ishii, Alexandra Jarlmark
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Patent number: 8955654Abstract: A vehicle shock absorber generates an additional counter-force acting counter to the direction of movement near the limit position of movement. The shock absorber substantially comprises a damping medium-filled damping cylinder that is divided into two damping chambers by a main piston. The main piston is axially moveable relative to the damping cylinder and is attached to a piston rod. A second piston/damping piston that contains one or more first and second through-ducts is mounted to the piston rod. The ducts are defined by first and second flow-limiting devices such as multiple thin washers. The damping piston slides in a restricting space located in the damping cylinder. The restricting space has an inside diameter smaller than the inside diameter of the damping cylinder. The additional counter-force is substantially constant throughout the entire stroke in order to create gentle braking of the damping movement.Type: GrantFiled: December 10, 2008Date of Patent: February 17, 2015Assignee: Ohlins Racing ABInventors: Nils Göran Nygren, Magnus Danek, Johan Jarl
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Patent number: 8869958Abstract: The invention relates to a pressurized hydraulic rotation damper intended for use on a multiwheeled vehicle. The rotation damper comprises an outer housing and a lid that together enclose a damping-medium-filled main chamber, which chamber is pressurized by a pressure tank and divided by a delimiting blade/arm into two volumes. The damping medium flows between the two volumes in a duct delimited by at least a first valve and a second valve. These valves throttle the flow between the volumes when the blade moves in an inward and outward motion respectively, starting from an intermediate position where the two volumes are substantially equal in size, to an outer position, in which the blade bears against or is placed close to the inner face of the outer housing. The first valve controls the flow for outward motions and the second valve is used to control the flow for inward motions to either pass through the first valve, through the second valve or through both valves.Type: GrantFiled: June 2, 2008Date of Patent: October 28, 2014Assignee: Ohlins Racing ABInventor: Leif Gustafsson
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Publication number: 20140249720Abstract: A device adjusts the rotational damping of a steering device such that the rotational damping varies depending on whether the rotational motion about a steering axis is caused by a force acting on the steering device of the vehicle or a force acting on the part(s) of the vehicle contacting the ground. The flow of hydraulic fluid in the steering damper partly or wholly is adjusted by a main valve unit that is coupled together with both an attaching part and a steering device. The opening area of the main valve unit is determined by a relative motion between the attaching part and the steering device such that the flow of the hydraulic fluid in a direction from and to the respective damping chambers of the steering damper is controlled depending on the cause of the rotational movement.Type: ApplicationFiled: May 5, 2011Publication date: September 4, 2014Applicant: Ohlins Racing ABInventors: Torkel Sintorn, Johan Nilsson, Leif Gustafsson Vallander, Thorleif Hansen, Joakim Sundevall
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Patent number: 8807302Abstract: A shock absorber comprising a damping cylinder is divided into a first damping chamber and a second damping chamber by a main piston device. The main piston device comprises a first main piston and a second main piston. The main pistons comprise continuous ducts that are delimited in a direction of flow by first and second flow limiters. The main pistons are mounted on a piston rod. The piston rod has an axially extending and continuous cavity through which damping medium can flow between a pressurized chamber and a respective damping chamber. The damping medium flows via an interspace delimited by the first main piston and the second main piston out into the damping chambers via pressurization ducts delimited by the first flow limiters.Type: GrantFiled: December 17, 2008Date of Patent: August 19, 2014Assignee: Ohlins Racing ABInventors: Nils Göran Nygren, Johan Jarl
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Patent number: 8770363Abstract: The invention relates to a pressure regulator (1) in a shock absorber valve. The pressure regulator (1) comprises an axially movable first valve part (4) and a first seat (3), which are arranged in a valve housing (2) in such a way that an adjustable flow opening is created between the parts (3, 4). The flow opening is arranged to restrict a damping medium flow (q) and its flow opening size (s) is determined by a force balance on the first valve part (4). The force balance is principally or partially created by the sum of an actuating force (F) and the force (Fs) from a spring arrangement counter to the action of a counter holding regulator force (R). The spring arrangement comprises a first spring (5) having a first spring constant (k1) and a second spring (6) having a second spring constant (k2).Type: GrantFiled: June 23, 2009Date of Patent: July 8, 2014Assignee: Ohlins Racing ABInventors: Lars Sönsteröd, Arnold Hovén
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Patent number: 8408572Abstract: A steering damper varies damping based upon the input source: the steering device or the ground contact parts. The device comprises a housing fixed on an attaching part that couples the steering device and the ground contact parts. A main chamber is partitioned into a first and second damping chamber and flow is at least partially controlled by a main valve unit. The opening area of the main valve unit is determined by a relative motion between the attaching part and the steering device.Type: GrantFiled: November 5, 2010Date of Patent: April 2, 2013Assignee: Ohlins Racing ABInventors: Torkel Sintorn, Johan Nilsson, Leif Gustafsson, Thorleif Hansen, Joakim Mattison
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Patent number: D734219Type: GrantFiled: June 6, 2013Date of Patent: July 14, 2015Assignee: Öhlins Racing ABInventors: Leif Gustaffson, Torkel Sintorn
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Patent number: D752482Type: GrantFiled: January 22, 2015Date of Patent: March 29, 2016Assignee: Öhlins Racing ABInventors: Leif Gustaffson, Torkel Sintorn