Patents Assigned to AB Volvo
  • Publication number: 20190202539
    Abstract: A drain system for a marine engine cooling system, includes an engine having one of a closed coolant circuit or an open cooling circuit, a raw water passageway having a raw water intake for drawing raw water into the raw water passageway, including a hose arranged to have a vertically high point and a vertically low point, a drain valve connected to the raw water passageway at the in hose vertically low point, a vent line connected to the raw water passageway at the hose vertically high point and a control handle located remote from the hose vertically high point and the hose vertically low point, the control handle having a vent valve connected to the vent line, the control handle being connected to the drain valve by a cable, wherein movement of the control handle selectively simultaneously opens and closes the drain valve and the vent valve.
    Type: Application
    Filed: September 23, 2016
    Publication date: July 4, 2019
    Applicant: AB VOLVO PENTA
    Inventors: Emil Hasl, William M. Cahoon, Justin Frohock
  • Publication number: 20190054991
    Abstract: A propeller drive assembly includes a driveshaft for transferring a torque between an engine and a propeller of a water surface vessel, and a housing enclosing the driveshaft. The assembly includes, separately from the driveshaft, a first element and a second element, the first element extending through a first bore of the second element, wherein one of the first and second elements is fixed to the driveshaft and the other of the first and second elements is arranged to be stationary in relation to the housing, and the one of the first and second elements which is fixed to the driveshaft presents in the first bore a first elongated cavity forming a first helix along the first bore, so as to form with the other of the first and second elements a screw pump.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 21, 2019
    Applicant: AB VOLVO PENTA
    Inventor: Peter TUULIAINEN
  • Patent number: 9862473
    Abstract: A method is provided for controlling a boat. The boat is adapted to float in a body of water. The boat includes a hull having a longitudinal extension along a hull longitudinal axis, a lateral extension along a hull lateral axis and a vertical extension along a hull vertical axis. The boat also includes a set of drive units, the set of drive units comprising at least one drive unit. Each drive unit in the set is arranged such that it, during driving of the boat, is adapted to be at least partially submerged into the body of water; adapted to be pivotable, relative to the hull, around a drive unit longitudinal axis that is substantially parallel to the hull longitudinal axis such that a drive unit roll angle can be varied, and adapted to be pivotable, relative to the hull, around a steering axis that forms an angle with the drive unit longitudinal, axis such that a drive unit steering angle can be varied.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 9, 2018
    Assignee: AB Volvo Penta
    Inventors: Anders Rydberg, Johan Wiklund
  • Patent number: 9630692
    Abstract: A tractor-type stern drive for a boat includes a drive housing pivotally attached to the stern of the boat about a steering axis. At least one pulling-type propeller is rotatably mounted to a forward end of the gear casing. The at least one propeller is powered by a vertical drive shaft perpendicular to the propeller shaft axis. The steering axis is offset forward of the drive shaft to help minimize steering torque about the steering axis.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 25, 2017
    Assignee: AB VOLVO PENTA
    Inventors: Emil Hasl, William Gremminger
  • Patent number: 9567052
    Abstract: Steering control system for a vessel including set of propulsion units including at least two propulsion units pivotally arranged in relation to the hull of the vessel for generating a driving thrust of the vessel in a desired direction, the control system including a steering control instrument for generating input signals for control of a desired route of the vessel a control unit complex controlling the angular position of the propulsion units, the control unit complex being arranged for receiving input signals from the steering control instrument, which input signals represents a general direction of movement of the vessel and thus a general desired angular position of each propulsion unit the control unit complex furthermore containing a feed forward pivot angle correction control block for each propulsion unit, which feed forward pivot angle correction blocks are arranged to generate desired angular positions of the propulsion units by adding a correction value to the general desired angular position of
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: February 14, 2017
    Assignees: AB VOLVO PENTA, CPAC SYSTEMS AB
    Inventors: Peter Torrångs, Lennart Arvidsson, Eva Maria Finn, Lina Ingrid Finn, Ebba Maria Finn
  • Publication number: 20160326939
    Abstract: An internal combustion engine arrangement for fastening a first component to a second component includes the first component, the second component and a clamping device for clamping the first and second components together. One of the first and second component includes a recess and the other of the first and second component includes a projection, wherein the recess and projection are configured for being engaged. The clamping device includes a clamping element, which is movably arranged in relation to the first and the second component when in an engaged state. Further, each one of the first and second component includes a flange portion at a distance from the recess and projection, respectively, that the clamping element includes a first and second clamping surface facing each other for effecting an outside of the respective flange portion for clamping the flange portions between the clamping surfaces.
    Type: Application
    Filed: December 13, 2013
    Publication date: November 10, 2016
    Applicant: AB VOLVO PENTA
    Inventor: Dan PERSSON
  • Publication number: 20160288893
    Abstract: A method is provided for controlling a boat. The boat is adapted to float in a body of water. The boat includes a hull having a longitudinal extension along a hull longitudinal axis, a lateral extension along a hull lateral axis and a vertical extension along a hull vertical axis. The boat also includes a set of drive units, the set of drive units comprising at least one drive unit. Each drive unit in the set is arranged such that it, during driving of the boat, is adapted to be at least partially submerged into the body of water; adapted to be pivotable, relative to the hull, around a drive unit longitudinal axis that is substantially parallel to the hull longitudinal axis such that a drive unit roll angle can be varied, and adapted to be pivotable, relative to the hull, around a steering axis that forms an angle with the drive unit longitudinal, axis such that a drive unit steering angle can be varied.
    Type: Application
    Filed: November 18, 2013
    Publication date: October 6, 2016
    Applicant: AB VOLVO PENTA
    Inventors: Anders RYDBERG, Johan WIKLUND
  • Publication number: 20160090162
    Abstract: A drive for a boat includes a gear case and a propeller rotatably mounted to a front of the gear case. The drive also includes a drive support for mounting the gear case to the boat. The drive support allows at least a portion of the gear case to pivot about a trim axis to adjust the boat's trim. A trim plane is formed as part of, or added to, the gear case between a lower portion of the gear case, usually underwater in use, and an upper portion of the gear case. The trim plane has sufficient exposed lower surface area to apply a downward force on the water to assist trimming of the boat.
    Type: Application
    Filed: September 30, 2014
    Publication date: March 31, 2016
    Applicant: AB VOLVO PENTA
    Inventors: Emil Hasl, William Gremminger
  • Publication number: 20150072578
    Abstract: A bellows for protecting a U-joint in a marine stern drive includes a flexible, hollow body defining an interior space and open at opposite ends, the body formed of a thermoplastic elastomer material to be self-supporting, having a first mating end and a second mating end and being pleated therebetween, a first sealing cuff formed of an elastomeric material, softer than the thermoplastic elastomer material, bonded to the first mating end and, a second sealing cuff formed of an elastomeric material, softer than the thermoplastic elastomer material, bonded to the second mating end.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 12, 2015
    Applicant: AB VOLVO PENTA
    Inventors: Carl Stone, William Gremminger, Emil Hasl
  • Patent number: 8808045
    Abstract: A method for controlling the exit of exhaust gases from an engine which is used to power an underwater propeller drive arranged at the hull bottom of a boat is provided. According to the method exhaust gases are allowed to flow from the engine through an exhaust channel and exit through a first underwater exhaust outlet in the underwater propeller drive. According to the method, if the engine is running and the transmission of the propeller drive is in neutral position, a second underwater exhaust outlet is opened for letting exhaust gases in the exhaust channel exit in a position closer to the hull bottom of the boat than the first underwater exhaust outlet.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: August 19, 2014
    Assignee: AB Volvo Penta
    Inventors: Thorbjörn Lundqvist, Jens Blomqvist, Aniko Holm
  • Patent number: 8579669
    Abstract: A gear housing for an aquatic vessel is adapted to be attached at an attachment site to an underside of a hull of the aquatic vessel. The gear housing includes at least one weakened region adapted to yield when the gear housing is rotated at the attachment site following an impact. A breakaway safety system includes such a gear housing, and a fracturable member for attaching the gear housing to the hull at the attachment site, wherein the weakened region is adapted to yield such that the fracturable member fractures. An aquatic vessel includes such a gear housing or such a breakaway safety system.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: November 12, 2013
    Assignee: AB Volvo Penta
    Inventors: Lars Sjöblom, Mathias Aström, Lennart Sellman, Mikael Asberg
  • Patent number: 8444391
    Abstract: A propeller drive for boats features a transition cone between the gearbox housing and the propeller hub(s). The propeller hub (that is closest to the gearbox housing) is smaller in cross-sectional dimension than the gearbox housing. The dimension of the front end of the transition cone corresponds to the cross-sectional dimension of the gearbox housing, and the dimension of the rear end of the transition cone corresponds to the cross-section dimension of the (closest) propeller hub. The transition cone has a bulging shoulder between the front and rear ends, the largest peripheral cross-sectional dimension of which is greater than the cross-sectional dimension of the front of the transition cone.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: May 21, 2013
    Assignee: AB Volvo Penta
    Inventors: Kare Jonsson, Benny Hedlund
  • Patent number: 8408953
    Abstract: An arrangement and a method for controlling a propeller drive on a boat including a propeller drive suspended in a housing that can rotate, a servo motor which is arranged to rotate said rotating housing, a control unit which is arranged to control the servo motor in response to an input signal from a control device, corresponding to a required position of the rotating housing.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: April 2, 2013
    Assignee: AB Volvo Penta
    Inventors: Lars Bremsjö, Dan Olsson, Stig Ursing
  • Patent number: 8370009
    Abstract: The present invention relates to a system, method, and computer program product for monitoring oil condition. In one embodiment, a marine powertrain is provided that includes a marine engine and a gear casing containing an oil and a gas. An engine speed sensor generates an output value, which indicates a speed of the marine engine. An oil sensor generates an output value, which indicates a condition of the oil. The condition of the oil is selectively monitored according to whether the marine engine is operating at a speed that is less than an engine speed threshold value, which denotes a speed of the marine engine at which the oil and the gas form an oil and aerated gas mixture.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: February 5, 2013
    Assignee: AB Volvo Penta
    Inventors: William Gremminger, Emil Hasl
  • Patent number: 8317996
    Abstract: A method is provided for corrosion protection in a marine construction, such as a marine surface vessel or a marine structure, the marine construction including at least one metal element and a sacrificial anode adapted to be at least partly immerged in an electrolyte in the form of water, in which the marine construction is at least partly immerged, the at least one metal element including a metal part, the sacrificial anode being provided for corrosion protection of the metal part. The method includes connecting at least one of the at least one metal element and the sacrificial anode to a DC electrical power outlet so as to allow an electric de-passivation current through an electrical circuit including the sacrificial anode, the metal element and the electrolyte.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: November 27, 2012
    Assignee: AB Volvo Penta
    Inventors: Carl Nelvig, Petter Igede
  • Patent number: 8298397
    Abstract: A method for corrosion protection in a marine construction including a plurality of metal elements and at least one reference electrode at least partly immerged in water, the metal elements including an anode and a metal part, the anode being provided for corrosion protection of the metal part includes measuring an electric potential of the metal part with the reference electrode as a ground reference. At least one of the metal elements and at least one of the at least one reference electrode are connected to a DC electrical power outlet so as to allow an electrical regeneration current through an electrical circuit including the at least one of the metal elements, the at least one of the at least one reference electrode and the electrolyte so that the reference electrode is anodized.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: October 30, 2012
    Assignee: AB Volvo Penta
    Inventor: Carl Nelvig
  • Publication number: 20120252288
    Abstract: A method for controlling the exit of exhaust gases from an engine which is used to power an underwater propeller drive arranged at the hull bottom of a boat is provided. According to the method exhaust gases are allowed to flow from the engine through an exhaust channel and exit through a first underwater exhaust outlet in the underwater propeller drive. According to the method, if the engine is running and the transmission of the propeller drive is in neutral position, a second underwater exhaust outlet is opened for letting exhaust gases in the exhaust channel exit in a position closer to the hull bottom of the boat than the first underwater exhaust outlet.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 4, 2012
    Applicant: AB Volvo Penta
    Inventors: Thorbjörn Lundqvist, Jens Blomqvist, Aniko Holm
  • Patent number: 8271155
    Abstract: There is elucidated a safety system for a marine vessel. The vessel includes two engines coupled to propellers for propelling the vessel through water. The vessel is provided with a digital anchor in communication with the two engines for maintaining the vessel substantially at a defined location when the anchor is activated. The safety system includes a sensor assembly coupled to a data processing assembly for sensing a region of said water at least partially surrounding the vessel for detecting one or more persons present in the region and for modifying operation of the digital anchor in response to the one or more persons being detected. The invention is of advantage in that the digital anchor is capable of responding to the one or more persons being present in the water and thereby reducing a risk of injury or loss of life when the digital anchor is employed.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 18, 2012
    Assignee: AB Volvo Penta
    Inventor: Lennart Arvidsson
  • Patent number: 8267731
    Abstract: There is provided a breakaway safety system for a vessel. The vessel includes: (a) a hull; (b) one or more engine arrangements supported by the hull; and (c) one or more propeller extensions mounted to the hull and coupled to receive motive power from the one or more engine arrangements in operation.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 18, 2012
    Assignee: AB Volvo Penta
    Inventor: Lennart Arvidsson
  • Patent number: D830847
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 16, 2018
    Assignee: AB Volvo
    Inventor: Nigel Atterbury