Supporting Valve Spring Carried By Supporting Valve Patents (Class 137/493.3)
  • Patent number: 10337537
    Abstract: A system for determining a health status of a tank is provided. The system includes a temperature sensor, a pressure sensor, a sensor coupled to a hydraulic actuator, a breather valve, and a controller. The controller is configured to receive a signal indicative of a temperature and a volume of a fluid within the tank from the temperature sensor and the sensor coupled to the hydraulic actuator respectively. The controller is configured to determine an estimated pressure of the fluid within the tank based on the received signals and a breather performance curve. The controller is configured to receive a signal indicative of a pressure of the fluid within the tank and compare it with the estimated pressure. The controller is also configured to determine the health status of the tank and to actuate one or more of an operator console display unit and the hydraulic actuator.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: July 2, 2019
    Assignee: Caterpillar Inc.
    Inventors: Jason Brinkman, Richard Andrew Carpenter
  • Patent number: 10145348
    Abstract: A high pressure container arrangement includes a reservoir having an outer wall and an over pressure relief orifice through which high pressure fluid may flow when the fluid pressure inside the reservoir exceeds a predetermined pressure threshold. The high pressure container arrangement also includes a pressure limiting valve having a housing in which is arranged a closing member permanently biased by a spring toward a closed position and, when the pressure in the reservoir exceeds the predetermined threshold the closing member is pushed in an open position. The housing of the pressure limiting valve is integral to the wall of the reservoir.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: December 4, 2018
    Inventors: Mehmet Donmez, Guillaume Trenado, Onur Mehmet Tansug
  • Patent number: 9169815
    Abstract: A discharge valve (30) is provided in a high-pressure fuel passage (31) to allow fuel to pass through the discharge valve (30) only in a direction from a high-pressure fuel pump (20) toward a delivery pipe (50). A communication passage (41) with an orifice (42) is formed integrally with the discharge valve (30) in parallel with the discharge valve (30) to connect areas upstream and downstream of the discharge valve (30). When a fuel pressure in the delivery pipe (50) is increased to a target pressure using the high-pressure fuel pump (20), an amount of the fuel, which does not interfere with an increase in the fuel pressure, flows through the orifice (42). A check valve (40) is provided in the communication passage (41), and opened to allow the fuel to pass through the check valve (40) only in the direction from the delivery pipe (50) toward the high-pressure fuel pump (20), when the fuel pressure is higher than a first predetermined pressure.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: October 27, 2015
    Inventors: Tatsuhiko Akita, Mitsuto Sakai
  • Patent number: 8459286
    Abstract: A pressure retention valve with integrated valve is disclosed. The pressure retention valve with integrated valve includes a housing; an outer piston positioned in the housing; a main seal between the outer piston and the housing; an inner piston positioned in the outer piston, the inner piston having a bore containing a valve; a spring between the housing and a top of the outer piston; an ambient bore in the housing above the main seal; an outlet in the housing below the main seal; and a vessel connection in the housing adjacent to the bore of the inner piston. Methods of supplying fuel to a gas consuming system using the pressure retention valve are also described.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: June 11, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Jurgen Thyroff, Oliver Maier
  • Patent number: 8302621
    Abstract: A pressure limiting valve comprises a valve closing body (7) which comprises a valve closing surface (8) which together with a first valve seat (9) opposing the valve closing surface (8) forms a first seal seat and a valve closing body orifice (11), which is surrounded by a second valve seat (12) which together with a closing head (14) configured on an axially displaceable valve bolt (13) forms a second seal seat and with a spring plate (15) which is connected to the valve bolt (13) and axially displaceable therewith, and a first return spring (10) clamped between the spring plate (15) and the valve closing body (7), which pretensions the valve bolt (13) against the second valve seat (12) configured on the valve closing body (7) and a second return spring (35) which pretensions a valve unit (7, 13, 15, 10) against the first valve seat (9). In the valve bolt (13) a longitudinal bore (53) is provided extending over the entire axial length of the valve bolt (13).
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 6, 2012
    Assignee: Brueninghaus Hydromatik GmbH
    Inventors: Reinhold Schniederjan, Markus Gepraegs
  • Patent number: 7568497
    Abstract: A valve for use in regulating the flow of fluid between a first and a second fluid side is provided. The valve comprises a valve body and an aperture extending through the valve body. The aperture comprises an inner wall, a first aperture diameter at the first end of the aperture and a second aperture diameter at the second end of the aperture. The valve further comprises a first valve insert positioned in the aperture with a first insert diameter and a first mating feature. The first insert diameter is larger than the first aperture diameter. The valve further comprises a second valve insert having a first width, a second width and a second mating feature. The first width is larger than the second aperture diameter. The first mating feature cooperates with the second mating feature to engage the first valve insert to the second valve insert.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: August 4, 2009
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Thomas J. Langenfeld, Matthew C. Roney, Robert E. Trimble
  • Patent number: 7509969
    Abstract: A two-way check valve includes a sleeve, a connection head, a valve stem eject-rod, a first valve body, a second valve body, a first pressure adjustment module, a second pressure adjustment module and an intake connector. The sleeve is threaded over the valve stem eject-rod and the intake connector at opposite ends thereof, respectively. The connection head is disposed at the valve stem eject-rod. The sleeve has a first sleeve portion and a second sleeve portion. A first receiving chamber and a second receiving chamber are respectively defined in the first sleeve portion and the second sleeve portion. The first receiving chamber receives the second valve body therein. The second valve body is defined with a receiving room therein for receiving the first valve body and the first pressure adjustment module. The second receiving chamber receives the second pressure adjustment module.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: March 31, 2009
    Inventor: Teng-Wen Huang
  • Patent number: 7451780
    Abstract: A valve apparatus is disclosed for use in regulating the flow of fluid between a closed hydraulic loop and a fluid source in a hydraulic circuit, where the valve apparatus provides up to four different functions including a check valve, a neutral valve, a relief valve and a pressure rise rate valve. The apparatus includes a valve seat for selectively permitting fluid communication between the closed hydraulic loop and the fluid source, a sleeve member and a relief poppet in the valve seat, a relief compression spring inside the sleeve and positioned adjacent the relief poppet and the base of the slidable member, a valve guide and an accumulator piston slidably mounted within the valve guide to define an accumulator volume therein.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: November 18, 2008
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Robert E. Trimble
  • Patent number: 7331323
    Abstract: A lubricating oil supplying system for an internal combustion engine includes a lubricating oil storage section for storing lubricating oil. A driven pump is driven by the internal combustion engine to suck the lubricating oil from the lubricating oil storage section and discharge the lubricating oil to a discharge passage. An electric pump is provided for sucking the lubricating oil discharged from the driven pump to the discharge passage and discharge the lubricating oil to a lubricating oil requiring section in the internal combustion engine. A controlling mechanism is provided for drivingly controlling the electric pump in accordance with a control signal. A bypass passage is provided for bypassing the driven pump. A check valve is disposed in the bypass passage to allow the lubricating oil in the lubricating oil storage section to flow only through a path bypassing the driven pump and toward the discharge passage.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: February 19, 2008
    Assignee: Hitachi, Ltd.
    Inventor: Seinosuke Hara
  • Patent number: 7320334
    Abstract: A valve for use in regulating the flow of fluid between a first fluid side and a second fluid side of a hydraulic circuit. A bore is extended through a valve seat, and the bore and valve stem cooperate to form a fluid passage from the first side to the second side. A plurality of ribs are located on one side of the valve seat and extend in a direction generally parallel to the bore.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: January 22, 2008
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Robert E. Trimble, Tage Christiansen, Anders Kryhlmand, Thomas Kopel
  • Patent number: 7219683
    Abstract: A cut valve with a check valve includes a body case, a cap member, positive and negative pressure valves, and first and second springs. The body case defines a vent hole. The cap member is fitted to an upper portion of the body case. The positive pressure valve is made of resin, defines an opening part, and is disposed to be contactable with and separable from the vent hole from above. The first spring is disposed on the positive pressure valve and presses the positive pressure valve in a direction in which the positive pressure valve closes the vent hole. The negative pressure valve is made of resin and is disposed to be contactable with and separable from the opening part from below. The second spring presses the negative pressure valve in a direction in which the negative pressure valve closes the opening part.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: May 22, 2007
    Assignee: Piolax Inc.
    Inventors: Masashi Furuya, Shinichi Matsuo
  • Patent number: 7201183
    Abstract: A valve arrangement in a hydraulic circuit comprises a longitudinal duct 3 and a transverse duct 2. A throttle slide 10 can be displaced in the direction of the longitudinal duct 3. Arranged in the throttle slide 10 is a valve piston 25, by means of which the flow through the hollow throttle slide 10 can be enabled or blocked. The flow of hydraulic fluid takes place through two groups of passage holes 33a, 35a, which are arranged in the throttle slide 10. The interaction of pressure and flow direction of the hydraulic fluid, and also the restoring force of a slide spring 20 and a piston spring 30, achieves a situation where hydraulic fluid can flow through the valve arrangement in both directions but that a throttling action occurs only when the hydraulic fluid flows from the transfer duct 2 to the longitudinal duct 3 under increased pressure.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: April 10, 2007
    Assignee: Sauer-Danfoss, Inc.
    Inventor: Reinhardt Thoms
  • Patent number: 7086388
    Abstract: A combination valve for fuel delivery system of a vehicle having an engine, the fuel delivery system being configured to pump fuel to the engine and the fuel delivery system has a regulator for regulating the pressure of the fuel when it is being pumped to the engine by the fuel delivery system, the combination valve comprising: an outer housing defining an inner opening for slidably receiving a body portion of a system pressure relief valve therein, the body portion of the system pressure relief valve defining an inner opening for slidably receiving a body portion of a check valve therein, the body portion of the check valve being configured to provide a first fluid pathway in a first direction when the body portion of the check valve moves from a closed position to an open position as the body portion of the check valve moves in the first direction within the inner opening of the body portion of the system pressure relief valve, the body portion of the system pressure relief valve being configured to provid
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: August 8, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Robert A. Roth, Dennis P. McGrath
  • Patent number: 6802332
    Abstract: A shear valve for use in a fuel delivery system includes a valve body wherein a first end is adapted to be connected to a fuel inlet, and a second oppositely-disposed end is adapted to be connected to a fuel outlet. The valve body is provided with a readily frangible or separable region between the first and second ends. The first end has an emergency shut-off valve biased towards a closed position, and is normally held open by a displaceable abutment having one ball or roller.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: October 12, 2004
    Assignee: Risbridger Limited
    Inventor: Graham M. Stuart
  • Patent number: 6772790
    Abstract: A fuel tank for a motor vehicle has means for delivering fuel from the tank to the engine, means for the introduction of air into and the venting of air from the tank, and a filler pipe which can be closed at its intake end and which at its outlet end into the interior of the tank has at least one valve which can sealingly close at least upon a blowback of fuel thereto. At least one second valve is disposed in the filler pipe in the region of the outlet end thereof. The first valve in the filler pipe can be bridged by way of the second valve.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: August 10, 2004
    Assignee: Kautex Textron GmbH & Co. KG
    Inventors: Reiner Viebahn, Christoph Adams
  • Patent number: 6283094
    Abstract: A pressure valve for installation in a feed line between a fuel injection pump and an injection site of an internal combustion engine to be supplied. The valve has at least one movable valve member, embodied as a valve ball, which can be brought by a restoring spring into contact with a valve seat A spring plate is provided between the restoring spring and the valve ball and has a spherical surface for guiding the valve ball, and a bearing face, remote from this spherical guide face, for the restoring spring. This spherical surface that guides the valve ball is intended to be interrupted at the spring plate.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: September 4, 2001
    Assignee: Robert Bosch GmbH
    Inventor: Kiyotaka Ogata
  • Patent number: 6261069
    Abstract: An apparatus is provided for equalizing pressure between a lubrication fluid for lubricating a pump and a combustion fluid located at a low pressure side of the pump wherein the pump has a rotatable shaft. The apparatus includes a wall defining a bore within the pump wherein a first end of the bore is configured to receive a lubrication fluid and a second end of the bore is configured to receive combustion fluid. An equalizing element is disposed within the bore for separating the lubrication fluid and the combustion fluid and may be at least partially movable in response to pressure differences caused, e.g., by differences in thermal expansion between the lubrication fluid and the combustion fluid.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: July 17, 2001
    Assignee: Stanadyne Automotive Corp.
    Inventor: Ilija Djordjevic
  • Patent number: 6234195
    Abstract: A one-piece check valve is provided for a fuel filler pipe connected to a vehicle fuel tank to provide a fuel filling passage communicated to the fuel tank. The check valve comprises a thin sheet of material shaped to comprise a mounting portion, a flapper valve and an intermediate connecting portion that connects the flapper valve and the mounting portion with the connecting portion being contoured so as to normally impart a spring bias to the flapper valve to close off the fuel filling passage. An elastomeric seal is fastened on the flapper valve or on the fill pipe in a manner to provide a liquid fuel and vapor tight seal when the flapper valve is in a closed position relative to the fuel filling passage. The flapper valve is opened when fuel is introduced into the fuel filler pipe to permit fueling of said tank.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: May 22, 2001
    Assignee: Saturn Electronics & Engineering, Inc.
    Inventors: Bradley N. Kippe, Barry L. Thater
  • Patent number: 6196201
    Abstract: A pressure control valve for installation in a supply line between a pump work chamber of a fuel injection pump and an injection point in the engine to be supplied. A valve body that has a first valve seat and an axial through conduit in which a pressure control valve closing member is guided. The pressure control valve closing member opens toward the injection point counter to the force of a first valve spring and has a sealing face that cooperates with the first valve seat, as well as with an axial through bore in the pressure control valve closing member. The bore can be closed by a back-flow valve that opens in the direction of the pump work chamber and has a second valve spring. For an optimal, unthrottled fuel flow through the pressure control valve, fuel conduits are respectively formed between the radially outer circumference faces of the first and second valve springs and the housing walls that encompass them, through which conduit the fuel flows in an unthrottled fashion.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: March 6, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Fehlmann, Ruben-Sebastian Henning, Walter Fuchs, Stephan Jonas, Kiyotaka Ogata