Line Flow Effect Assisted Patents (Class 137/484.2)
  • Patent number: 9541926
    Abstract: A drive device and a valve including the drive device. The drive device senses the pressure of a working medium and generates a drive force to control the flow of the working medium. The drive device includes a sensing part with a chamber and a drive shaft. Vents and an air exhausting device are arranged on the chamber. The drive device and the valve including such a drive device can exhaust air entering the chamber along with the working medium out of the chamber by the vents on the chamber thereby optimizing the performance of the drive device and the valve and helping to keep the valve operating in a stable manner.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: January 10, 2017
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Ping Huo, Yanbo Shi, Xiaojuan Qin
  • Patent number: 9519294
    Abstract: Embodiments of the invention provide a relief valve body arranged for connecting to a pressure vessel. The relief valve body includes an inlet configured to connect to a pressure vessel and an integrated nozzle downstream from the inlet and extending along an axis. The integrated nozzle includes a nozzle exterior surface, a nozzle bulb, and a valve seat and defines a nozzle expansion region. The relief valve body further includes a redirecting pallet, a valve interior surface having at least one ramped portion downstream from the integrated nozzle and redirecting pallet, and an outlet downstream from the at least one ramped portion.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: December 13, 2016
    Assignee: Pentair Flow Services AG
    Inventors: Michael McNeely, Michael Marcellus, Stephen Simpson
  • Patent number: 9249896
    Abstract: A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at least one fluid conduit, a variable orifice assembly, and a control pilot valve apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: February 2, 2016
    Assignee: CLA-VAL CO.
    Inventor: Robert Folk
  • Patent number: 8757196
    Abstract: A pressure controlling valve includes a slidable spool arranged to be spring loaded towards a neutral position. A first port and a second port are connected to allow a fluid flow through the valve. A first and a second pilot port are connected to a cavity adjacent a respective first and second end surface of the spool. The pilot ports are connected to a fluid conduit on either side of a fluid device causing a pressure drop in the fluid conduit and the fluid device is connected to one of the first or second ports. The spool is displaced against the spring load in response to a pressure difference between the first and the second pilot port, whereby a control surface of the spool is arranged to restrict the fluid flow through the valve when the control surface approaches a central cavity.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 24, 2014
    Assignee: Parker-Hannifin Corporation
    Inventor: Björn Eriksson
  • Patent number: 8453670
    Abstract: A poppet valve is disclosed that includes a valve body, a poppet guide disposed inside the valve body so as to form a flow passage from an inlet to an outlet of the valve, a poppet shutter disposed inside the poppet guide, and a biasing member to bias the poppet shutter away from the poppet guide toward an inside surface of the flow inlet so as to block the flow passage. The poppet valve further includes at least one discharge hole placing an inner chamber of the poppet guide in flow communication with a region of low static pressure of the flow passage. A method for reducing a closing pressure force acting on a poppet shutter of a poppet valve is also disclosed.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: June 4, 2013
    Assignee: Nuovo Pignone, S.p.A.
    Inventors: Stefano Francini, Nicola Campo, Michele Bianchini
  • Patent number: 8302594
    Abstract: An air control regulator regulates the amount of air flowing into the inlet of a combustion chamber by causing flowing air to support a disc located in the air passage against the force of gravity. Air passes around the edges of the disc and is channeled into a plurality of airflows by ovoid depressions in the inner surfaces of the regulator forming a venturi chamber. By regulating the airflow into the combustion chamber, combustion efficiency is improved.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: November 6, 2012
    Assignee: Flamekeeper, LLC
    Inventor: Mark Wiliam Kendall
  • Publication number: 20120103429
    Abstract: A method and system for boosting pipeline gas pressure in a low-pressure gas pipeline in which a supplemental gas supply pipe in fluid communication with a supplemental pipeline gas supply is provided to an interior of a gas pipeline containing a pressurized pipeline gas, where the pressure of the supplemental pipeline gas supply is greater than the pressure of the pressurized pipeline gas. The gas pressure differential between the pressurized pipeline gas and the supplemental pipeline gas supply pressure is measured. When the pressure differential reaches a certain predetermined set value, supplemental pipeline gas is provided from the supplemental pipeline gas supply through the supplemental gas supply pipe into a pipeline space between the gas pipeline and the supplemental gas supply pipe. The flow of supplemental pipeline gas is halted upon achievement of a second predetermined set differential pressure.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Applicant: GAS TECHNOLOGY INSTITUTE
    Inventors: Daniel Allen ERSOY, Daniel Thomas GERMATA
  • Patent number: 8079358
    Abstract: An air control regulator regulates the amount of air flowing into the inlet of a combustion chamber by causing flowing air to support a disc located in the air passage against the force of gravity. Air passes around the edges of the disc and is channeled into a plurality of airflows by ovoid depressions in the inner surfaces of the regulator forming a venturi chamber. By regulating the airflow into the combustion chamber, combustion efficiency is improved.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: December 20, 2011
    Assignee: Flamekeeper, LLC
    Inventor: Mark William Kendall
  • Publication number: 20100313970
    Abstract: A system for regulating pressure supplied to a transmission control element, includes a control pressure source and line pressure source, a latch valve that opens and closes communication with the line pressure source in response to control pressure, and a regulator valve including a spool for regulating line pressure and producing control element pressure when the latch valve is closed, and an auxiliary piston responsive to line pressure and contacting the spool for connecting line pressure to the control element when the latch valve is open.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Inventors: Hrudaya Mahapatro, Robert O. Burkhart, John Butwin
  • Publication number: 20100288371
    Abstract: Disclosed is an apparatus and method for mechanically reducing internal pressure of a column in a refinery or petrochemical process, which uses a safety relay valve for operating an emergency shutdown valve able to mechanically block the supply of a heat source in the process, thus reducing the mounting cost, simplifying the process and ensuring high reliability thanks to the use of mechanical signals.
    Type: Application
    Filed: March 8, 2010
    Publication date: November 18, 2010
    Inventor: Chang Hun Na
  • Publication number: 20100269632
    Abstract: Provided is a fluid pressure control device that includes an actuator and a body configured to house the actuator. The body has an opening arranged to receive pressurized fluid. The fluid pressure control device additionally includes a pressure sensor incorporated into the body relative to the opening to sense fluid pressure and to generate an electrical signal indicative of the sensed pressure. Furthermore, the fluid pressure control device includes an integrated circuit incorporated into the body, and operatively connected to the pressure sensor. The integrated circuit includes a transceiver configured to communicate with an external device by transmitting the electrical signal indicative of the sensed fluid pressure to the external device and receiving a control signal from the external device. The integrated circuit additionally includes a driver configured to power the actuator in response to the control signal.
    Type: Application
    Filed: April 27, 2009
    Publication date: October 28, 2010
    Applicant: GM GLOBAL TECHNOLOBY OPERATIONS, INC.
    Inventor: Randall B. Dlugoss
  • Publication number: 20100043891
    Abstract: A device to enhance sealing is provided. The device includes a body and a pressure cup. The pressure cup includes a channel, a first pressure channel, and a second pressure channel. The channel is formed in a surface of the body to surround a first portion of the surface. The channel is configured to hold an o-ring. The first pressure channel extends through the body and opens into the first portion of the surface. The second pressure channel extends through the body and opens into the channel. Pneumatic pressure within the second pressure channel is controlled to hold the o-ring in the channel when a second pressure within the first pressure channel changes.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Inventors: Andrew Paul Wilke, Robert Charles Mierendorf, Anthony Charles Grabski, Cunjiang Cheng
  • Publication number: 20090301577
    Abstract: Disclosed herein is a combination venturi check valve for introducing a composition, such as ozone, into the fluid circulation line of a swimming pool, spa, and/or other recreational body of water. The combination venturi check valve preferably includes a fluid inlet, a fluid outlet, a venturi passage for suctioning in the composition, and a bypass passage with a valve enabling compatibility with pumps having different flow rates, for example. In an aspect of the invention, the venturi and bypass passages are inline with the fluid inlet and fluid outlet. In another aspect of the invention, the venturi and bypass passages share a common wall, and/or the housing is modular and/or integrally formed. In yet another aspect of the invention, the valve automatically adjusts the flow rate of fluid through the bypass passage without requiring human intervention.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 10, 2009
    Inventors: James Anthony Carter, III, Peter Auld Mackay
  • Publication number: 20090260697
    Abstract: A gas regulator includes an actuator, a regulator valve, and a secondary device. Downstream pressure feedback is provided to the actuator and the secondary device via a Pitot tube disposed within an outlet of the regulator valve. The Pitot tube has a first branch having an end connected to the actuator to place the actuator control cavity and diaphragm in fluid communication with downstream pressure within the outlet for maintaining the outlet pressure at an actuator setpoint pressure. The Pitot tube also has a second branch having an end connected to the secondary device to place the interior of the secondary device in fluid communication with downstream pressure within the outlet for responding to changes in the downstream pressure when the outlet pressure diverges from a predetermined normal operating pressure range.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 22, 2009
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Jason S. Mevius, James C. Hawkins, Seth A. Kranz, Gregory L. Foust
  • Publication number: 20090020169
    Abstract: An easy-type water pressure reducing apparatus comprises a connecting tube having a bore extending through an inlet end and an outlet end. The bore has an annular seat with a smaller-diameter inlet chamber integrally extending at both sides to which a movable element with an inlet port to receive a spring element is mounted. The movable element also includes positioning guide blocks to fit to water-guiding vents of the inlet chamber, and a ringed groove with a sealing ring to abut tight against the inlet chamber, forming a back-and-forth movable positioning space there-between. Therefore, when water pressure at the outlet end is larger than that at the inlet end, water flow blocked by a water plug of the movable element will push the movable element towards the inlet end, compressing the spring element and closing the water-guiding vents gradually to reduce the water flow and stabilize the water pressure thereby.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 22, 2009
    Inventor: Shun Nan Lo
  • Publication number: 20080251136
    Abstract: An air control regulator regulates the amount of air flowing into the inlet of a combustion chamber by causing flowing air to support a disc located in the air passage against the force of gravity. Air passes around the edges of the disc and is channeled into a plurality of airflows by ovoid depressions in the inner surfaces of the regulator forming a venturi chamber. By regulating the airflow into the combustion chamber, combustion efficiency is improved.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: FLAMEKEEPERS, LLC
    Inventor: Mark William Kendall
  • Patent number: 7338606
    Abstract: An arrangement and method for maintaining a minimum flow velocity in return piping receiving dirty coolant from a plurality of machine tools receiving filtered coolant from a filter apparatus. A bypass line diverts clean coolant into the return piping via a pressure reducing valve set to allow make up flow of clean coolant into the return piping just sufficient to maintain a pressure corresponding to the minimum flow velocity in the return piping. A pressure maintaining valve is interposed upstream of the pressure reducing valve and set to restrict flow as necessary to maintain adequate pressure to insure that the machine tools are adequately supplied with clean coolant at start up prior to the beginning of contaminated flow in the return piping.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: March 4, 2008
    Inventor: Jack R. Bratten
  • Patent number: 7172689
    Abstract: An arrangement and method for maintaining a minimum flow velocity in return piping receiving dirty coolant from a plurality of machine tools receiving filtered coolant from a filter apparatus. A bypass line diverts clean coolant into the return piping via a pressure reducing valve set to allow make up flow of clean coolant into the return piping just sufficient to maintain a pressure corresponding to the minimum flow velocity in the return piping. A pressure maintaining valve is interposed upstream of the pressure reducing valve and set to restrict flow as necessary to maintain adequate pressure to insure that the machine tools are adequately supplied with clean coolant at start up prior to the beginning of contaminated flow in the return piping.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: February 6, 2007
    Inventor: Jack R. Bratten
  • Patent number: 6924004
    Abstract: A particle beam deposition apparatus includes a particle source for generating a plurality of particles in suspended form, an expansion chamber, and a deposition chamber connected to the expansion chamber by an aerodynamic focusing stage, and containing a substrate. The aerodynamic focusing stage may be comprised of a plurality of aerodynamic focusing elements, or lenses. Particles, including nanoparticles, may be deposited on the substrate by generating an aerosol cloud of particles, accelerating the particles into the expansion chamber, creating a collimated beam out of the particles by passing them through the aerodynamic focusing lenses and into a deposition chamber, and impacting the particles into the substrate.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: August 2, 2005
    Assignee: Regents of the University of Minnesota
    Inventors: Nagaraja P. Rao, Joachim Heberlein, William Gerberich, Steven L. Girshick, Peter H. McMurry
  • Patent number: 6748932
    Abstract: A natural gas fuel regulator for a natural gas fueled internal combustion engine for driving a co-generation plant, which allows exhaust recycled gas combustion while maintaining lower head temperatures to reduce thermal NOx emissions. The gas regulator has a modulation chamber, which modulates incremental pressure changes from the carburetion system to allow the engine to respond to load changes without the necessity for dynamic control feed back valve. In one aspect, a non-diaphragm venturi fuel/air-mixing unit with post turbo charger throttle adjustment is downstream of the natural gas fuel regulator to provide lean burn, low thermal NOx operation of the co-generation unit from no load to full load electrical generation.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: June 15, 2004
    Assignee: Chapeau, Inc.
    Inventors: Richard L. Sorter, Gerald H. Dorn
  • Patent number: 6551504
    Abstract: A valve in a fluid treatment system adapted for controlling the flow of fluid between a source and a treatment media disposed in a treatment chamber. The valve includes a housing having a fluid passageway between an inlet and an outlet; a containment chamber; and a sealing member reciprocal between a first position in which the sealing member is retained in the containment chamber out of the flow of fluid in the passageway and a second position that seals the outlet. The containment chamber also includes a drain opening, which can be a venturi, for emptying the containment chamber of fluid.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: April 22, 2003
    Assignee: USF Consumer & Commercial Watergroup, Inc.
    Inventor: Kenneth Orr Reed
  • Patent number: 6514232
    Abstract: A vacuum adjustment valve, particularly for thoracic drainage devices, which comprises a valve body arranged in the air intake duct and tuning a first region connected to the intake duct and a second region connected to the drainage device. A regulator is arranged between the regions, is struck by the air stream and is operatively connected to a flow control element which controls a port for connection between the second region and an environment at atmospheric pressure. Adjustable elastic closure elements act on the flow control element.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: February 4, 2003
    Inventor: Andrea Gibertoni
  • Publication number: 20030010384
    Abstract: An excess pressure release is provided which at injector effect during inflation of an air cushion ensures an underpressure in a part (23) of a valve chamber. By activating a piston (19), the underpressure retains the excess pressure release in its open position against the force of a spring (11), until a desired counter pressure from the filled air cushion stops the injector effect, whereby the excess pressure release is closed. As a result the air cushion may be inflated at a comparative high pressure and thus in a fast manner. The inflation is stopped automatically and securely, when the desired pressure has been reached in the air cushion.
    Type: Application
    Filed: August 2, 2002
    Publication date: January 16, 2003
    Inventor: Mogens Poulsen
  • Patent number: 6328056
    Abstract: An unbalance compensated bypass valve (14, 21, 23) for a gas turbine engine fuel supply system is responsive to the fuel pressure differential across a fuel metering valve (15) to open and close a bypass orifice (37, 39, 41; 89, 91, 93; 99, 101, 103). The bypass valve (14, 21, 23) selectively supplies high fuel pressure to a compensating cavity (45, 95, 120) providing a counterbalancing force against an annular area (47, 97, 124) of the bypass valve piston (34, 81, 83, 111, 112) to compensate for increased restorative forces of a helical reference spring (57, 112, 125) as that spring is collapsed as well as to compensate for other unbalance conditions within the valve (14, 21, 23). The compensating cavity may include a variable orifice inlet (37, 39, 41), (99, 101, 103), or (89, 91, 93) and a variable orifice outlet (105, 107, 109) or the inlet orifice may be variable while the outlet orifice (43, 96, 99) is fixed.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: December 11, 2001
    Assignee: Honeywell International Inc.
    Inventors: Abhay Kumar, Paul W. Futa, Jr., Steven F. Fisher
  • Patent number: 6318405
    Abstract: A pressure regulator body having an inlet port and and an outlet port having a pressure regulator valve disposed in said pressure regulator body, said valve being moveable between and open and a closed position and being responsive to open or close the valve based at least in part on a differential pressure between the pressure in the outlet port and the pressure in the inlet port. A chamber in the pressure regulator body on the outlet port side of the valve has a conduit extending from the outlet port into said chamber. This conduit has an inside and an outside and an open end which is spaced from the valve whereby flow through the conduit flowing will pull fluid from the chamber which is located radially outwardly from said conduit as well as allowing flow directly from the valve to the open end in the conduit. The effect of this arrangement is to quickly cause less flow to a fuel tank and more flow to an engine during a desired rapid acceleration of rpm of such engine.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: November 20, 2001
    Assignee: Mahle-Parr Filter Systems, Inc.
    Inventors: Timothy B. Brandt, Allen L. Hudson
  • Patent number: 6179020
    Abstract: The present fluid level controlled automatic shutoff valve is comprised of a tubular housing with an axial bore which has an upstream closure, a downstream opening, and an annular piston seat at the downstream opening. A movable piston is positioned in the bore, and biased to a retracted position by a tension spring connected between the piston and the closure of the bore. A plurality of channels on the wall of the housing extend between an upstream end of the housing and the bore. The channels terminate in venturis downstream of the piston in the retracted position. The shutoff valve is positioned in a fluid dispensing device. When pressurized fluid is delivered through the dispensing device, the fluid is directed through the channels and out the venturis at high speed and low pressure.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: January 30, 2001
    Inventor: Peter Hutchinson