Motor Discharge Into Or Upstream Of Pumping Chamber Patents (Class 417/391)
  • Patent number: 10161413
    Abstract: A method for preventing corrosion in a component of a turbo-machine having a metal substrate made of carbon steel, low alloy steel and stainless steel includes: a first deposition step of depositing a first metallic layer on the substrate by electroplating; a second deposition step of depositing at least a second layer of a nickel alloy on the first layer by electroless plating; at least one thermal treatment step after the deposition steps, said thermal treatment being applied at a temperature and for a time depending on the overall thickness of the layers, the value of said temperature being directly proportional to the thickness, the value of said time being inversely proportional to the temperature.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: December 25, 2018
    Assignee: Nuovo Pignone Srl
    Inventors: Riccardo Paoletti, Massimo Giannozzi, Marco Romanelli, Marco Anselmi
  • Publication number: 20120114509
    Abstract: A dosing apparatus includes a dosing unit having a piston arrangement movable along a first axis in a cavity of a casing arrangement and a joint arrangement for removably connecting a first end portion of the piston arrangement to a movement arrangement arranged for moving the piston arrangement. The first end portion includes a seat that is suitable for receiving a clutch portion of the joint arrangement, that is connectable in and detachable from the seat along a coupling direction that is almost parallel to the first axis.
    Type: Application
    Filed: April 29, 2010
    Publication date: May 10, 2012
    Applicant: IMA LIFE S.R.L.
    Inventors: Alessandro Farne', Mauro Maccagnani, Luca Sassatelli
  • Patent number: 7255544
    Abstract: A housing for a motor having fluid passages integrated within. The passages include a first passage for receiving a fluid from outside the motor, a second passage for directing the fluid away from the motor, and at least one other passage from conveying the fluid to a set of components attached to the motor housing. The housing has at least one relief valve positioned within the fluid passages for diverting a portion of the fluid directly from the first passage to the second passage.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: August 14, 2007
    Assignee: Parker-Hannifin
    Inventors: Xingen Dong, Barun Acharya
  • Patent number: 7003838
    Abstract: This invention relates to a hydraulic pig advance system comprising a control volume chamber containing hydraulic fluid and a force transmitting member. The system further comprises two directional control valves which can be selectively repositioned to cause hydraulic fluid to cycle the force transmitting member back and force such that in each cycle, a metered amount of hydraulic is transmitted into a pig housing where it causes a pig to move a predetermined distance.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: February 28, 2006
    Assignee: Oceaneering International, Inc.
    Inventor: Michael Cunningham
  • Patent number: 6948917
    Abstract: An engine for actuating a hydraulic downhole pump having a piston vertically reciprocated in a cylinder includes a reversing valve carried with the power piston and serving, when in a first position, to direct fluid flow to force the piston upwardly and in a second position to provide bypass fluid flow to cause the piston to move downwardly. A pilot valve carried by the power piston and serving, when in a lower position, to direct fluid flow to move the reversing valve from the first to the second position. A probe is configured to move the pilot valve to the lower position when the piston reaches an upper limit of travel.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: September 27, 2005
    Inventor: Donald Carrens
  • Patent number: 6185956
    Abstract: A positive displacement machine having a set of parallel meshing rotors employed in a compression-expansion refrigeration system receives a fluid refrigerant input from a condenser and expands the fluid in a first zone and forces substantially all of the liquid in the first zone to an evaporator. The remaining fluid from the first zone of the machine is then compressed in an adjacent second zone of the machine to form a high pressure vapor, which is then routed back to the condenser. The positive displacement machine includes a first rotor having a plurality of helical lobes disposed about a rotor periphery. At least one second rotor has a plurality of helical grooves disposed about a second rotor periphery for receiving the lobes of the first rotor during rotation of the rotors in opposite directions. A housing defines a chamber for enclosing the rotors.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 13, 2001
    Assignee: Carrier Corporation
    Inventor: Joost J. Brasz
  • Patent number: 6149393
    Abstract: A combination of an air lift pump and a mechanical pump is used to lift a fluid from a lower level to a higher level. In preferred embodiments compressed air is released below the level of a submerged mechanical pump having an impeller, such that the compressed air impinges upon the low pressure side of the impeller. The combination may be used advantageously in conjunction with a semipermeable membrane disposed within a deep channel to lift a purified fluid.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: November 21, 2000
    Assignee: Nate International
    Inventor: Dennis Chancellor
  • Patent number: 6126413
    Abstract: The invention relates to an apparatus for use in a liquid circulation system of the kind comprising a primary circulatory circuit provided with a circulation pump and having a primary forward flow and a primary return flow, as well as a secondary circulatory circuit with a secondary forward flow and a secondary return flow, said primary and secondary forward and return flow being connected to the apparatus, and the liquid circulating in the primary and secondary circulatory circuits being of substantially the same composition. The apparatus comprises two positively interconnected displacement machines (A, B), of which one (A) receives the primary forward flow (P.F.) and delivers the secondary forward flow (S.F.), whilst the other (B) receives the secondary return flow (S.R.) and delivers the primary return flow (P.R.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: October 3, 2000
    Assignee: T. Smedegaard A/S
    Inventor: J.o slashed.rgen Berke-J.o slashed.rgensen
  • Patent number: 5863188
    Abstract: A fluid flow reducing unit is incorporated in various mechanical systems to increase the mechanical advantage without the addition of energy. The fluids gaseous, liquid or mixtures thereof, are processed by the fluid flow reducing unit to increase the pressure of the effluent fluids when a higher pressure load is applied. The fluid flow reducing system can be employed in rockets, gas turbines, pump and motor systems, fire engine pumper water lines, blood pressure systems, steam engines, etc. An `Unidentified Flying Object-UFO` requires a Fluid Power Transmission to produce higher gas pressure for very rapid acceleration. The statement by Archimedes--`Give me a fulcrum on which to rest and I will move the earth.` relates to the application of a physical mechanical force on a lever arm. The application of a physical fluid pressure on a lever arm also does exist in the form of a Fluid Power Transmission means for greater thrust propulsion.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: January 26, 1999
    Inventor: James A. Dosman
  • Patent number: 5655895
    Abstract: A turbopump pumps a fluid of high viscosity. The pump has an inlet and an outlet. The pump is disposed on a shaft. A turbine has a separate inlet and a separate outlet from those of the pump. The turbine is disposed on the same shaft as the pump. A vehicle liquid has a viscosity less than that of the fluid and is miscible with the fluid. The vehicle liquid is conducted under pressure to the inlet of the turbine, such that a portion of the partially pressure-relieved vehicle liquid exits from the turbine as solvent liquid and is admixed to the fluid in a chamber disposed before the inlet to the pump. Thus, the viscosity of the mixture is reduced. Such that the mixture of solvent liquid and fluid is suctioned from the inlet of the pump. A plurality of injection channels are disposed in the chamber.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: August 12, 1997
    Assignee: KSB Aktiengesellschaft
    Inventors: Helmut Warth, Bernard Josserand, Robert Bariatti, Jean Rougeaux, Sylvain Stihle
  • Patent number: 5588813
    Abstract: The dosing arrangement comprises two first pumps for a liquid medium B whose pistons are mutually connected by a piston rod, and two other pumps and for a liquid medium A which are positioned outside in continuation of and coupled to the pumps for liquid B. The two pumps for liquid B are firmly fixed to a central body which is hollow and filled up with liquid B, and in which are mounted two mutually connected suction valves which are activated by the pistons by means of a push rod and switched over momentarily from one extreme position to another by a spring mechanism and two exhaust valves whose movements are derived from the valves. Furthermore, the central body incorporates an opening/closing arrangement, which can admit a variable volume of liquid B through a valve into the cylinder for liquid A, which is under a suction pressure, whereby the proportion of mix can be regulated.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: December 31, 1996
    Inventor: Jorgen Berke-Jorgensen
  • Patent number: 5558502
    Abstract: In a turbo, pump according to the present invention, blades 3e and a shroud 3f are continuously formed with a boss 3c of a turbine wheel 3, a meridian plane configuration of the shroud 3f is formed as an concave arcing rotatable surface. A boss shroud 3f.sub.1 is formed substantially parallel to the axis of rotation O. A portion 3e.sub.2 of a blade outlet edge 3e.sub.1 is smoothly continuous to the boss shroud 3f.sub.1 and largely projects downstream. A portion 3e.sub.3 of the blade outlet edge 3e.sub.1 is formed substantially perpendicular to the axis of rotation O. The blade outlet edge 3e.sub.1 is formed with a smooth arc-like curve projecting convexly downstream between the portion 3e.sub.3 and the portion 3e.sub.2. An angle of the blade outlet edge 3e.sub.1 is set to an angle of substantially 0.degree. at the portion 3e.sub.2 of the blade outlet edge 3e.sub.1 and to substantially the conventional degree of angle at the portion 3e.sub.3 of the blade outlet edge 3e.sub.1.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: September 24, 1996
    Assignee: Pacific Machinery & Engineering Co., Ltd.
    Inventors: Tetsuo Fukazawa, Chugen Chin
  • Patent number: 5524683
    Abstract: An apparatus for filling containers including a pump housing having a pump chamber, a product inlet in communication with a supply of product under pressure, a product outlet and a piston positioned therein. The piston is movable by the supply of product under pressure between advancing and retracting positions where product is discharged from the chamber and through the outlet during the advancing stroke and the chamber is filled with product during the retracting stroke. A first valve is included to regulate the flow of product through the outlet and a second valve is included to regulate the flow of product between opposite sides of the piston. By controlling the opening and closing of the first and second valves, the pressure of the product enables movement of the piston to eject product and fill the chamber as desired.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: June 11, 1996
    Assignee: Osgood Industries, Inc.
    Inventor: Martin J. Mueller
  • Patent number: 5193988
    Abstract: A reverse osmosis system including a reverse osmosis filter with a reverse osmosis membrane and having an inlet port coupled to a source of feed water under predetermined pressure via a feed water inlet conduit, a product water outlet port for filtered outlet product water, and a brine outlet port for brine. A pump coupled into the feed water inlet conduit between the source of feed water and the inlet port of the filter and driven by the feed water under pressure. The pump increases the pressure of the feed water so that the reverse osmosis filter receives feed water at an increased pressure.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: March 16, 1993
    Assignee: Product Research And Development
    Inventor: Donald F. Solomon
  • Patent number: 5117908
    Abstract: Pressurized petroleum flows from a well into a turbine. The petroleum undergoes a pressure reduction in the turbine and then enters a separation chamber where it is separated into liquid and gaseous phases. The liquid phase is sent to a pump which serves to transfer the liquid phase to a station remote from the well. Similarly, the gaseous phase is directed to a compressor which functions to transfer the gaseous phase to a station remote from the well. The pump and the compressor are coupled to the turbine which uses the energy liberated by the petroleum during pressure reduction to drive the pump and the compressor.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 2, 1992
    Assignee: KSB Aktiengsellschaft
    Inventor: Heinrich Hofmann
  • Patent number: 4995793
    Abstract: A reverse osmosis system including a reverse osmosis filter with a reverse osmosis membrane and having an inlet port coupled to a source of feed water under predetermined pressure via a feed water inlet conduit, a product water outlet port for filtered outlet product water, and a brine outlet port for brine. A pump coupled into the feed water inlet conduit between the source of feed water and the inlet port of the filter and driven by the feed water under pressure. The pump increases the pressure of the feed water so that the reverse osmosis filter receives feed water at an increased pressure.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: February 26, 1991
    Assignee: Product Research and Development
    Inventor: Donald F. Solomon
  • Patent number: 4979880
    Abstract: A fluid motor and rotary pump are arranged in a cylindrical housing which is releasably secured in a cup-shaped base unit so that the housing can be removed from and inserted into the base via the open top.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: December 25, 1990
    Assignee: Shell Oil Company
    Inventor: Pierre A. M. X. Delaittre
  • Patent number: 4820135
    Abstract: A fluid driven pumping apparatus comprises a housing containing a twin rotor screw type positive displacement motor and a twin rotor screw type positive displacement pump. The screw rotors of said pump and motor are mounted on a pair of common shafts.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: April 11, 1989
    Assignee: Shell Oil Company
    Inventor: Peter E. Simmons
  • Patent number: 4721436
    Abstract: This pumping installation comprises a source (1) of liquid and a turbo-machine comprising a pump (7) having an intake (8) and an outlet (9) and a turbine (5) which is fixed on the same shaft as the pump (7) and which has an intake (6) and an outlet (4). The outlet (4) of the turbine (5) opens into a conduit communicating the source (1) with the pump (7).
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: January 26, 1988
    Assignee: Etablissements Pompes Guinard
    Inventor: Claude Lepert
  • Patent number: 4712984
    Abstract: Process for pumping fluid composed of a liquid phase and of a gaseous phase, which involves conveying liquid under pressure to the inlet of the turbine of a turbo-machine comprising a pump and a turbine, mixing some of the liquid coming from the turbine with the fluid, and sucking the mixture through the inlet of the pump so as to reduce the gas content of the fluid and allow it to be conveyed by the pump.
    Type: Grant
    Filed: February 4, 1987
    Date of Patent: December 15, 1987
    Assignee: Etablissements Pompes Guinard
    Inventor: Claude Lepert
  • Patent number: 4343595
    Abstract: A hydraulic actuated pressure booster unit includes a differential power piston and an integral control valve controlling the pumping direction and action. The control valve has a reciprocally mounted tubular spool member in a cylindrical valve body. The spool member has a control passageway and a plurality of spaced spools, one of which mates with the power piston passage to form a first valve for transfer of oil to the pumping chamber and from a transfer chamber to an exhaust passageway. A pair of spaced spools slide in stepped control chamber forming a control bore and exhaust bore connected by the spool passageway to the pumping chamber via the first valve. A sequence valve connects the exhaust bore to the exhaust through a directional control valve. The sequence valve is controlled by the output working pressure. A pilot valve controls the load connection to the one end of the cylinder and a high pressure relief valve limits the total pressure created within the working system.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: August 10, 1982
    Inventors: David L. Wells, Allen M. Johnson
  • Patent number: 4292011
    Abstract: An improved power fluid driven turbo pump is provided for pumping oil wells of the type having, from time-to-time, significant quantities of gas included in the oil so that wide variations in the density of the medium to be pumped may be expected to be encountered. Two separate pumping units driven by the same power fluid are employed, one of which is designed to efficiently compress and pump gas, and the other is designed to efficiently pump normal density fluids. Since the pumps are disposed in series, the combined efficiency of the pumps is substantially unchanged due to changes in density of the fluid to be pumped and remains at a uniformly high level.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: September 29, 1981
    Assignee: Kobe, Inc.
    Inventor: John W. Erickson
  • Patent number: 4256440
    Abstract: This invention is directed to an apparatus for dosing a solution into a liquid conduit by means of a piston dosing pump mechanically driven by the liquid pressure, which comprises a dosing pump having a chamber containing liquid from the conduit and into which the solution is delivered from a supply source, a spring-biased nonreturn valve between the dosing pump chamber and the liquid conduit, and a second pump which supplies fresh liquid to the dosing pump chamber, the piston of the second pump being synchronized with the piston of the dosing pump.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: March 17, 1981
    Assignee: Lang Apparatebau GmbH
    Inventors: Johann Kern, Walter Eichner
  • Patent number: 4096059
    Abstract: Apparatus for accurately proportioning and mixing fluids comprising a double acting piston/cylinder unit of which the cylinder is divided into two chambers by the piston and the volume of the cylinder swept by the piston at one end of the piston is lesser than that at the other end. An inlet connection for a first fluid is made to one chamber, a conduit connects the two chambers and includes a connection to a source of the second fluid. Valve means are associated with the conduits and are effective to cause a charge of first fluid to be delivered to said one chamber and thereafter to be transferred to the other chamber drawing fluid from said source of second fluid to make up for the difference in the volumes of the chambers. Said valve means then cooperate to cause the mixed fluids to be discharged from the other chamber as said one chamber is again charged with said first fluid.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: June 20, 1978
    Inventor: Harry E. Pinkerton
  • Patent number: 4037616
    Abstract: Apparatus for accurately proportioning and mixing fluids comprising a double acting piston/cylinder unit of which the cylinder is divided into two chambers by the piston and the volume of the cylinder swept by the piston at one end of the piston is lesser than that at the other end. An inlet connection for a first fluid is made to one chamber, a conduit connects the two chambers and includes a connection to a source of the second fluid. Valve means are associated with the conduits and are effective to cause a charge of first fluid to be delivered to said one chamber and thereafter to be transferred to the other chamber drawing fluid from said source of second fluid to make up for the difference in the volumes of the chambers. Said valve means then cooperate to cause the mixed fluids to be discharged from the other chamber as said one chamber is again charged with said first fluid.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: July 26, 1977
    Inventor: Harry Pinkerton