Controls Scoop Operation For Removing Liquid From Rotating Casing Patents (Class 60/351)
  • Patent number: 10077814
    Abstract: A hydrodynamic machine contains a bladed primary wheel driven by a rotary shaft and a bladed secondary wheel, which together form a work chamber filled with a working medium. The machine has a pressure pump for delivering a working medium from the work chamber. The pressure pump has a first inlet, which projects into the work chamber, and has a first inlet opening which is aligned with the rotary shaft in the circumferential direction. The pressure pump has a second inlet which projects into the work chamber and has a second inlet opening which is aligned to the rotary shaft in the circumferential direction opposite to the first inlet opening. The first and second inlets are joined to a common working medium channel behind the two inlet openings. The first and second inlets extend adjacent to each other in the same flow direction separated by a separation wall.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 18, 2018
    Assignee: Voith Patent GmbH
    Inventors: Thomas Vogel, Rainer Schips
  • Patent number: 8318118
    Abstract: A process for the treatment of gas phase alkaline chlorides in a combustion plant that is arranged for combustion of solid fuel and which includes a combustion chamber from which a flue-gas flow is directed to pass a heat transfer device. A phosphorous substance is added to the flue-gas flow, separate from the fuel, the substance chosen from a group of substances that form phosphorous oxide at combustion temperatures of approx. 500° C. or above, wherein the phosphorous substance is distributed in the flue-gas at a location upstream of the heat transfer device. The phosphorous substance is added to an amount which results in phosphatising of gas phase alkaline chlorides included in the flue-gas flow before the chlorides reach the heat transfer device. A corresponding combustion plant is disclosed, as well as the use of a phosphorous substance for phosphatising alkaline chloride in gaseous phase in a flue-gas flow.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: November 27, 2012
    Assignee: Vattenfall AB
    Inventors: Matts Ahlmark, Magnus Berg
  • Patent number: 7673453
    Abstract: A hydrodynamic coupling that has a primary impeller and a secondary impeller. A drive shaft drives the primary impeller. The drive shaft has a first end, a second end, a central axis, and a prespecified segment between the first and second ends. There is at least one supply channel for introducing a working medium to the toroidal working chamber. The at least one supply channel is formed in the drive shaft at the central axis along the prespecified segment. The plurality of evacuation channels evacuates the working medium from the toroidal working chamber, and the plurality of evacuation channels is formed in the drive shaft radially about the at least one supply channel. The plurality of evacuation channels is formed from the first end up to at least the second end with the first end being located a predetermined distance from the toroidal working chamber.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: March 9, 2010
    Assignee: Voith Turbo GmbH & Co. KG
    Inventor: Markus Kley
  • Patent number: 7426826
    Abstract: The invention concerns a hydrodynamic coupling or a hydrodynamic brake with the following features: having an impeller and a turbine wheel, which together form a toroidal working chamber; the impeller sits on a driveshaft, and the turbine wheel sits on a driven shaft; having a housing, which encloses the impeller and, together with the impeller, forms a retaining space, which is conductively connected to the working chamber; having an inlet and an outlet for the filling and emptying of the working chamber; the driveshaft supports a dynamic pressure pump, which projects into the retaining space and which can be placed in rotation around the driveshaft (20); the dynamic pressure pump has an inlet in its radial outer region and is connected to the outlet by its radial inner region; a connection that is resistant to rotation can be produced and/or released again selectively between the dynamic pressure pump and the driveshaft.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: September 23, 2008
    Assignee: Voith Turbo GmbH & Co. KG.
    Inventor: Kurt Adleff
  • Patent number: 6725657
    Abstract: The present invention relates to a power transmission apparatus for transmitting power by utilizing kinetic energy of a fluid, such as a torque converter, a fluid coupling, or the like. In a power transmission apparatus for taking out kinetic energy given to a fluid for power transmission by a prime mover as rotational power, water is supplied as a working fluid to a coupling section comprising an impeller (10) and a runner (11), water is supplied as a lubricating fluid to lubricate bearings (8, 9) for supporting an input shaft (7) and an output shaft (16) which are connected respectively to the impeller (10) and the runner (11), and water is supplied as a working fluid in a hydraulic servo mechanism for controlling a scoop tube (14) for adjusting the amount of water in the coupling section.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: April 27, 2004
    Assignee: Ebara Corporation
    Inventors: Katsumi Kimura, Kazuo Hattori, Hiroshi Ogata, Michio Otsuka, Kazuhiko Sugiyama, Yoshinori Kataya
  • Patent number: 6101810
    Abstract: A hydrodynamic coupling having a constant quantity of working fluid, the coupling comprising, a pump wheel and a turbine wheel which together form a working space for a working fluid, a first storage chamber in fluid communication with the working space; and a valve for displacing working fluid between the working space and the storage chamber in response to an external control during operation of the coupling; and further comprising a housing which is connected, fixed for rotation, with the pump wheel, the housing including the first storage chamber, the first storage chamber being rotatable with the housing.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: August 15, 2000
    Assignee: Voith Turbo GmbH & Co.
    Inventors: Kurt Adleff, Maik Tietz, Gerd-Peter Hercher
  • Patent number: 5435133
    Abstract: A hydrodynamic clutch with a generally horizontal axis, specifically for underground operation. The clutch includes a primary wheel, a secondary wheel, a housing which comprises two essentially axially perpendicular end walls as well as a peripheral wall which is essentially concentric to the axis of the clutch, a scooping bowl fastened to the primary wheel, forming a scooping space and revolving jointly with the primary wheel (rotor), outlet bores discharging from the working space into the scooping space, and a scooping pipe dipping into the scooping space. At least one antechamber has an inlet port for receiving leakage water entrained and thrown off by the outside surface of the rotor. A line is used for transfer of operating fluid from the antechamber to the scooping space.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: July 25, 1995
    Assignee: Voith Turbo GmbH & Co. KG
    Inventors: Bernhard Schust, Hermann Schwarz
  • Patent number: 4747267
    Abstract: A hydrodynamic coupling, whose degree of filling is determined by a scoop tube, has a plurality of radially arranged elongated depressions on the inner surface of the coupling casing (simultaneously forming a scoop chamber) driven on the primary side. These depressions have the purpose of efficiently causing rotation of the oil ring formed inside the scoop tube chamber so that the oil ring rotates as far as possible at the same speed as the coupling casing. Owing to the small size of the radial depressions in a fine arrangement on the inner surface of the coupling casing the occurrence of pressure fluctuations at the scoop tube and the hydraulic system downstream therefrom is avoided.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: May 31, 1988
    Assignee: Voith Turbo GmbH
    Inventor: Karl-Heinz Diele
  • Patent number: 4671061
    Abstract: A scoop controlled fluid coupling has a toroidal working circuit W defined by vaned impeller and runner elements 11,12. Working liquid is supplied to the working circuit W from a rotating reservoir 9 by an adjustable scoop tube 15 having a scooping orifice 16, the radial position of which is to determine the degree of filling of the circuit W. To counteract unintentional changes in the filling due to thermal expansion of the liquid, the runner diameter is about 10% smaller than that of the impeller, and the runner has two sets of holes 54,55 which permit liquid to escape from the circuit.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: June 9, 1987
    Assignee: Fluidrive Engineering Company Limited
    Inventor: John Elderton
  • Patent number: 4516399
    Abstract: A hydraulic coupling is disclosed which has a primary bladed wheel and a secondary bladed wheel confining a torus-shaped operating space. A blade-free ram space is provided inside the blading of the primary wheel. A delay chamber rotating with the primary wheel is connected by channels respectively to the ram space and to the operating space. In each of the channels, a switchable valve is provided which operates depending on the primary speed. A scoop tube is fixed to the secondary wheel. The scoop tube has inlet opening of the tube in the radially outermost region of the inner space of the coupling. The scoop tube directs operating fluid into the radially inner region of the coupling, from where the fluid can reach the delay chamber through the valve assigned to the channel.
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: May 14, 1985
    Assignee: Voith Turbo GmbH & Co. KG
    Inventors: Heinz Holler, Wolfgang Weber
  • Patent number: 4445328
    Abstract: In variable fill-type fluid couplings, a driving impeller and a driven runner are coupled for joint rotation by means of a liquid medium in an active liquid chamber formed by the rotating members. The active liquid chamber is continuously bled at a selected constant rate and continuously fed at a rate that can be changed to control the volume of fill of the liquid therein. Charging liquid is fed from a source to enter a mouth of the active liquid chamber. To insure that all of the charging liquid enters the active liquid chamber, the mouth is provided with a charging liquid collector that forces charging liquid past the mouth and into the active liquid chamber. The liquid collector can comprise an outer ring, an inner ring, and a plurality of pitched blades between the two rings. The collector rotates with the driving impeller, thereby forcing charging liquid past the mouth and into the active liquid chamber.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: May 1, 1984
    Assignee: Indian Head Incorporated
    Inventor: Geoffrey H. Michels
  • Patent number: 4023362
    Abstract: A scoop-trimmed fluid coupling wherein the transmitted torque decreases continuously with increasing ratio of runner speed to impeller speed at each degree of filling of the working circuit with liquid. During acceleration of the runner, the scoop tube is moved by its actuator from a "circuit empty" to a "circuit full" position in several stages and at different speeds so that the torque which is transmitted by the coupling during acceleration of the runner remains substantially constant. If the load upon the runner varies from acceleration to acceleration of the runner, the operation of the actuator during acceleration of the runner is modified by a controller system which monitors the energy requirements of the prime mover for the impeller or the acceleration of the runner.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: May 17, 1977
    Assignee: Voith Turbo KG
    Inventors: Thomas Rogner, Klaus Sauka
  • Patent number: 3995424
    Abstract: The invention relates to a fluid clutch of the kind comprising cooperating vaned pump and turbine elements between which toroidal power-transmitting liquid vortices are established. At least part of the vanes of one of the elements is movable between clutch engaged and disengaged portions through a wall of the element into a reservoir on the other side of the wall. This reservoir also serves as a stall reservoir into which working liquid is fed automatically upon the existence of a stall condition of the element, so as to reduce the torque transmission capacity to a value preventing stalling of the prime mover.
    Type: Grant
    Filed: January 16, 1975
    Date of Patent: December 7, 1976
    Assignee: Cluaran Associates Ltd.
    Inventor: John E. Becker