Patents Examined by F. Daniel Lopez
  • Patent number: 10330185
    Abstract: A torque converter, including: an impeller arranged to receive torque and including an impeller shell and at least one impeller blade fixed to the impeller shell; and a turbine including a turbine shell including a slot with an open end circumferentially located between first and second radially outermost portions of the turbine shell and at least one turbine blade fixed to the turbine shell; and an inertia ring fixed to the turbine shell and including a tab with a segment located in the slot.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 25, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Nigel C. Gurney
  • Patent number: 10330130
    Abstract: A valve for controlling a hydropneumatic device for pressure intensifying having a working plunger and an intensifier plunger for pressure intensifying, the intensifier plunger being designed to move the working plunger hydraulically with a comparatively high transmission ratio on account of a pneumatic actuation, the valve having a differential plunger arrangement with a first plunger with a first active plunger face in a first pressure space and a second plunger with a second active plunger face in a second pressure space, the first plunger being coupled to the second plunger, the first pressure space being equipped with a first connector for, for example, a pneumatic return stroke space of the working plunger, and the second pressure space being equipped with a second connector for a pneumatic pressure source which differs from the return stroke space.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: June 25, 2019
    Assignee: Tox Pressotechnik GmbH & Co. KG
    Inventors: Eberhard Dietzel, Manfred Gresser, Albert Rankel
  • Patent number: 10330187
    Abstract: A hydraulic control unit that delivers hydraulic fluid to a limited slip differential includes a hydraulic control unit housing, a sump and a motor. The hydraulic control unit housing has an accumulator housing portion that houses a biasing assembly and a piston. The sump is defined in the hydraulic control unit housing and at least partially occupies a common space with the accumulator housing portion. The motor is configured to pump fluid into an accumulator chamber of the accumulator housing portion. The fluid pumped into the accumulator housing portion at least partially collapses the biasing assembly and introduces a pre-charge into the hydraulic control unit. The biasing assembly is configured to expand and urge the piston in a first direction resulting in fluid being communicated from the hydraulic control unit and into the limited slip differential.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 25, 2019
    Assignee: Eaton Corporation
    Inventors: Daniel P. Fisher, Andrew N. Edler, Scott M. Besemer, Jeffrey A. Oesch, Matthew G. Fox
  • Patent number: 10323661
    Abstract: An adsorption separation device is used with a cylinder, wherein the cylinder comprises a cylinder body, a first piston, and a second piston. The first piston and the second piston are arranged inside the cylinder body, and the first piston and the second piston are be spaced from each other. The cylinder further comprises a first shaft and a second shaft where the first shaft extends into the cylinder body and is connected with the first piston, and the second shaft is slidably sleeved in the first shaft and connected with the second piston. The adsorption separation device includes the cylinder. The cylinder and the adsorption separation device are actually two or more cylinders sharing the same cylinder body and controlling two or more pistons and shafts respectively. The control directions and strokes of the pistons are independent relative to each other and do not affect each other.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: June 18, 2019
    Assignee: SHENZHEN BITEMAN SCIENCE & TECHNOLOGY CO., LTD.
    Inventor: Yinghui Guo
  • Patent number: 10323458
    Abstract: A hydraulic circuit may be used for controlling a plurality of hydraulic implements. The hydraulic circuit may include a first directional valve, a second directional valve, and a relief valve. A variable displacement pump may be fluidly coupled to the first directional valve, the second directional valve, and the relief valve. The hydraulic circuit may be communicably and operably coupled to a controller, and the controller may be programmed to selectably control the hydraulic circuit between a first operational mode and a second operational mode. Additionally, the controller may be programmed to actuate the first directional valve between an open position and a closed position and to actuate the second directional valve between a first open position, a second open position, a first closed position and a second closed position.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 18, 2019
    Assignee: Caterpillar Inc.
    Inventors: Michael P. Chiaramonte, Christopher J. Demick
  • Patent number: 10323657
    Abstract: A system for hydraulic systems includes a working cylinder (58) which operates as a consumer of hydraulic energy or as a generator of hydraulic energy. A hydraulic accumulator (1) can be charged by the working cylinder for storing energy and can be discharged for delivering energy to the working cylinder (58). One hydraulic accumulator is provided in the form of an adjustable hydropneumatic piston accumulator (1), in which with a plurality of pressure chambers (19, 21, 23, 25) adjoining effective surfaces (11, 13, 15, 17) of different sizes are on the fluid side of the accumulator piston (5). An adjusting arrangement (51) connects a selected pressure chamber (19, 21, 23, 25) or a plurality of selected pressure chambers (19, 21, 23, 25) of the piston accumulator (1) to the working cylinder (58) as a function of the pressure level that prevails respectively on the gas side of the piston accumulator (1) and on the working cylinder (58).
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 18, 2019
    Assignee: HYDAC FLUIDTECHNIK GMBH
    Inventors: Frank Schulz, Peter Bruck
  • Patent number: 10321621
    Abstract: A hydraulic circuit with electronic latching through valve assemblies to allow full control of ground engaging tools including raising, lowering, and providing regulated active down force pressure via a work vehicle valves with manual input while allowing a continuous pressure source to be used in parallel. Pressure transducers and electrically controlled valves along with an electric control circuit allow automatic switching between manual control and automatic control of the ground engaging tools.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 18, 2019
    Assignee: DEERE & COMPANY
    Inventor: Aaron L. Barfels
  • Patent number: 10323663
    Abstract: A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second independent control valves (700, 800), and first and second blocking valves (350, 450). The actuator includes first and second corresponding chambers. In a first mode, the second counter-balance valve is opened by the first control valve, and the first counter-balance valve is opened by the second control valve. In a second mode, at least one of the counter-balance valves is closed. A meter-out control valve (800, 700) may be operated in a flow control mode, and/or a meter-in control valve (700, 800) may be operated in a pressure control mode. Boom dynamics reduction may occur while the boom is in motion (e.g., about a worksite). By opening the counter-balance valves, sensors at the control valves may be used to characterize external loads.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 18, 2019
    Assignee: Eaton Intelligent Power Limited
    Inventors: Meng Wang, Michael Berne Rannow
  • Patent number: 10323662
    Abstract: A system, a method, and an apparatus to retain an in-cylinder linear position sensor in a cavity of a housing of a hydraulic cylinder assembly are described. The in-cylinder linear position sensor includes a sensor body that houses circuitry of the in-cylinder linear position sensor, and a sensor cap that extends from an upper surface of the sensor body. The sensor cap has a retention mechanism with a portion that extends radially outward relative to a central vertical axis of the sensor body so as to extend into and engage a wall of an access port of the housing to hold the in-cylinder linear position sensor in the cavity of the housing. The portion of the retention mechanism is configured to move inward from an outer position toward the central vertical axis of the sensor body.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: June 18, 2019
    Assignee: Caterpillar Inc.
    Inventors: Bradly G. Duffer, Philip A. Thompson
  • Patent number: 10316790
    Abstract: A piston including at least one insert disposed between an inner surface of a ring belt and undercrown surface, and/or between the inner surface of the ring belt and a pin boss, to provide reinforcement to the ring belt is provided. The insert reduces thermal and mechanical distortion of the ring belt, and thus increases the piston ring performance, reduces blow-by, and ultimately improves engine emissions. The insert is formed by an additive machining process, such as direct depositing, laser cladding, laser sintering, arc welding, additive welding, plasma transferred arc spraying, plasma welding, arc welding, selective laser sintering, and high velocity oxygen fuel spraying, plasma spraying. According to one embodiment, an intermediate piece is mechanically attached to the piston, and the insert is applied to the intermediate piece, to provide additional reinforcement.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: June 11, 2019
    Assignee: TennecoInc.
    Inventors: Ross Evers, Rainer Weiss, Sven Ungermann
  • Patent number: 10316839
    Abstract: A pump plunger is disclosed. The plunger may include a proximal end and a distal end opposite the proximal end. The plunger may also include a body portion extending between the proximal end and a second transition datum, and additionally include a transition section extending between a first transition datum and the second transition datum. The transition section may have a non-linear geometric profile. A first shoulder portion may be positioned adjacent to the transition section that may extend between the second transition datum and a third datum. The third datum may be positioned radially inward of the second transition datum. The plunger may also include a tip portion positioned adjacent to the first shoulder portion that may extend between the third datum and a fourth datum positioned at the distal end. The fourth datum may be positioned radially inward of the third datum.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 11, 2019
    Assignee: Caterpillar Inc.
    Inventors: Aaron M. Brown, Alan R. Stockner
  • Patent number: 10316866
    Abstract: A hydraulic excavator is equipped with: an arm cylinder driven by a hydraulic working fluid from a hydraulic pump; a meter-out passage through which the hydraulic working fluid discharged from the arm cylinder flows; a control valve controlling the hydraulic fluid flow rate of the meter-out passage; a pressure sensor detecting a load acting on the arm cylinder; a pressure sensor detecting an operation amount of an operation device operating the arm cylinder; and a controller. The controller alternatively selects a normal operation mode in which the opening area of the control valve is controlled based on an actuator load and the operation amount, and a substitution operation mode in which the opening area of the control valve is controlled based on the operation amount. When the substitution operation mode is selected, a delivery flow rate of the hydraulic pump is further increased as compared with the normal operation mode.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: June 11, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hiroaki Amano, Shinya Imura, Ryouhei Yamashita, Shinji Nishikawa
  • Patent number: 10308232
    Abstract: A hydraulic block for a hydraulic power unit of a hydraulic vehicle brake system includes a main brake cylinder bore and an intake that are integrated to form a pedal travel simulator.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 4, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Matthias Mayr, Andreas Weh
  • Patent number: 10309535
    Abstract: A piston ring assembly for sealing a cylinder wall to a piston body is provided. The piston ring assembly includes a plurality of rings stacked in an axial direction one in abutment with another. Each ring has an inner face and an outer face. The piston ring assembly also includes a spring which substantially circumferentially surrounds the stacked rings and abuts the outer faces of the rings. The spring biases the stacked rings in a radially inward direction for sealing the inner faces of the rings against the piston body. The spring may be of a strip of material bent into a serpentine pattern when in an at rest condition to apply the biasing force against the piston body.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: June 4, 2019
    Assignee: Tenneco Inc.
    Inventors: Blair Matthew Jenness, Matthew Ryan Pedigo, Ronald Nelson Radunzel
  • Patent number: 10309393
    Abstract: A pump body of a high-pressure pump includes a pressure chamber formed in a deep portion of a cylinder. The pump body closes the pressure chamber on a side opposite to a plunger. The plunger reciprocates within the cylinder to vary a volume of the pressure chamber. The large-diameter portion provided at an end of the plunger on a side protruding to the pressure chamber has an outside diameter larger than an inside diameter of the cylinder and smaller than an inside diameter of the pressure chamber. In this case, the large-diameter portion is engaged with a step portion between the cylinder and the pressure chamber in a state before attachment of the high-pressure pump to an internal combustion engine. Accordingly, separation of the plunger from the cylinder is avoidable.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 4, 2019
    Assignee: DENSO CORPORATION
    Inventor: Masaharu Nakaoka
  • Patent number: 10309079
    Abstract: An object of the present invention is to provide a hydraulic control system for a work machine that is capable of reducing the loss caused by flow division while reducing a decrease in the speed of a hydraulic actuator due to a combined operation. The hydraulic control system for a work machine includes a first hydraulic actuator, one hydraulic pump, a second hydraulic actuator, and another hydraulic pump. The hydraulic control system further includes operating instruction detection means and pump flow control means. The operating instruction detection means detects that operating instructions are issued to the first hydraulic actuator and the second hydraulic actuator. The pump flow control means individually adjusts the delivery flow rate of the one hydraulic pump and the another hydraulic pump in accordance with operation amounts designated by the operating instructions for the first and second hydraulic actuators.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 4, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hidekazu Moriki, Shinya Imura, Kouji Ishikawa, Ryohei Yamashita
  • Patent number: 10308280
    Abstract: Hydraulic steering (1) is disclosed comprising a high pressure port (P), a low pressure port (T), two working ports (CL, CR), a manual steering section (3), and a steering valve section having a steering valve 5 and a hydraulic driving arrangement (6) adjusting hydraulically a position of said steering valve. A change from automatic steering to manual steering should be reliably ensured when the manual steering section is directly influenced by a driver. To this end, a switching valve (11) is provided, which is actuatable between a first position in which said driving arrangement (6) is supplied with hydraulic fluid under pressure, and a second position in which a supply of hydraulic fluid to said driving arrangement (6) is interrupted, wherein said switching valve (11) is hydraulically actuated into said second position by a pressure generated upon actuating of said manual steering section (3).
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 4, 2019
    Assignee: Danfoss Power Solutions ApS
    Inventors: Morten Hoeck Petersen, Thomas Træger Hansen, Thomas Bauer, Niels Bjarne Hansen, Jeroen Hinse
  • Patent number: 10309431
    Abstract: Methods and apparatus to control movement of a component are disclosed herein. An example apparatus includes a housing defining a bore and a piston disposed inside the bore. The piston is to be coupled to a movable component disposed outside of the bore. The example apparatus further includes a fluid flowline in fluid communication with a first chamber of the bore and a second chamber of the bore. The first chamber is on a first side of the piston, and the second chamber on a second side of the piston. The example apparatus also includes a valve to control fluid flow through the fluid flowline. The valve is to be in a first state to enable the piston to dampen movement of the component, and the valve is to be in a second state to enable the piston to hold the component substantially stationary.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: June 4, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Robert M. Murphy, Kelly T. Jones, Robert E. Fisher, Mark J. Gardner
  • Patent number: 10311983
    Abstract: A control assembly for a nuclear reactor having a pump includes a duct having an inner volume and defining a coolant flow path, a plug fixed to the duct, a rod disposed within the inner volume and having a rod end that is configured to engage a neutron modifying material, a first piston disposed within the inner volume, slidably coupled to the duct, and coupled to the rod, and a biasing member coupled to the rod and the first piston. The biasing member is positioned to apply a biasing force that repositions the first piston, the rod, and the neutron modifying material in response to a loss of pump flow without scram condition.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: June 4, 2019
    Assignee: TerraPower, LLC
    Inventors: Jesse R. Cheatham, III, Robert A. Corbin, Pavel Hejzlar, Christopher J. Johns, Jon D. McWhirter, Jason Brian Meng, P. Harley Park, Robert C. Petroski
  • Patent number: 10294966
    Abstract: An actuator body includes a tube that has a space therein and is wound spirally about a first axis. The tube has a plurality of first portions and a plurality of second portions, the tube has one or more grooves in at least one of an outer circumferential surface and an inner circumferential surface thereof, and the one or more grooves are provided spirally about a longitudinal axis of the tube, the space is in contact with the inner circumferential surface, and the outer circumferential surface is a surface opposite to the inner circumferential surface, each of the plurality of first portions has higher torsional rigidity than each of the plurality of second portions, the plurality of first portions are aligned along the first axis, and the plurality of first portions do not overlap the plurality of second portions.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: May 21, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Katsuhiko Asai, Jun Ozawa, Takayuki Nagata, Kazuo Inoue