With Communicating Opening In Common Walls Of Tanks Or Compartments Patents (Class 137/576)
  • Patent number: 5330475
    Abstract: A modular fuel sender including a reservoir in a fuel tank of a motor vehicle, an electric fuel pump in the reservoir, and a jet pump for aspirating fuel into the reservoir. The electric fuel pump includes a regenerative turbine pump having a pump channel around the periphery of an impeller and a bleed orifice between an inlet and a discharge of the pump channel for bleeding a mixture of fuel and vapor from the pump channel. The bleed orifice is connected a nozzle in the jet pump. The mixture of fuel and vapor bled from the pump channel issues as a jet stream from the jet pump nozzle for aspirating fuel into the reservoir.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: July 19, 1994
    Assignee: General Motors Corporation
    Inventors: Orrin A. Woodward, Edward A. Hantle, Christopher J. Mahoney
  • Patent number: 5307836
    Abstract: A vehicle multi-compartment air-brake reservoir includes a housing and a rigid interior baffle disposed within the housing. The housing and the interior baffle define a supply and secondary chamber. An inlet and an outlet are formed in the supply chamber, and an outlet is formed in the secondary chamber. A one-way valve disposed in the interior baffle provides one-way fluid flow from the supply chamber to the secondary chamber.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 3, 1994
    Assignee: Ventra Corporation
    Inventor: Bob Niceley
  • Patent number: 5289810
    Abstract: An arrangement for supplying fuel from a supply container to an internal combustion engine of a motor vehicle, has a supply tank having an interior with a separate chamber, a supply aggregate having a suction side connected with the supply tank and a pressure side connectable with the internal combustion engine, the supply aggregate receiving fuel from the separate chamber of the supply tank, a branching conduit connected with the pressure side of the supply aggregate and having a portion extending near a bottom of the supply tank, an ejector arranged in the portion of the branching conduit and having a pressure pipe opening in the chamber of the supply tank, and a check valve provided in the branching conduit upstream of the ejector as considered in a flow direction of fuel, and opening in the branching conduit after a predetermined limiting pressure has been exceeded.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: March 1, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Otto Bauer, Gerhard Geyer
  • Patent number: 5285998
    Abstract: An internal valve for pressurized fluid containment vessels having vessel ports. The valve includes a valve seat associated with the vessel port and a valve member movable between a closed position against the valve seat and an open position wherein fluid can flow through the vessel port. A control chamber positioned in the vessel is connected to the valve member. A motive mechanism acting on or in the control chamber, by a control system outside of the vessel, controllably moves the valve member to at least one of the open or closed positions. The control chamber is sealed from fluid in the vessel by a sealing system, which includes a flexing surface against which fluid pressure in the vessel acts to thereby bias the valve member towards one of the open or closed positions.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: February 15, 1994
    Assignees: Montana Sulphur & Chemical Co., John E. Schwartz
    Inventors: Donald L. Zink, Donald G. Zink
  • Patent number: 5253628
    Abstract: A fuel reservoir system for an internal combustion engine includes a canister (22) having a storage volume (24) for holding fuel, at least one fuel supply line (26) extending from the canister to the engine, an entrance pipe (28) for conducting raw fuel into the canister, and an exit pipe (32) connected with a fuel supply line for conducting fuel from the canister to the fuel supply line. The exit pipe includes a draft tube (34) extending into the lower part of the storage volume, a purge passage (36) communicating the upper portion of the draft tube with the storage volume, and a flow restrictor (38,40) mounted in the draft tube upstream of the purge passage.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: October 19, 1993
    Assignee: Ford Motor Company
    Inventor: Bradley A. Brown
  • Patent number: 5251473
    Abstract: Inner and outer welded steel protective tanks are separated by a space containing a granular insulating material such as perlite preventing excessive heating of fuel in a storage space in the inner tank, even when there is a fire at the site. The inner tank is subdivided into portions by a partition defining a storage space and an overfill containment space receiving overflow from the storage space portion, with a sensor detecting overflow. The overflow containment space is also arranged to collect separated fuel when the tank system is used with a vapor recovery system. The granular insulating material acts as an explosion suppressant by dissipating heat and fuel vapors which may be present in the insulation space as a result of leakage from the inner tank.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: October 12, 1993
    Assignee: Ace Tank & Equipment Company
    Inventor: R. Allan Reese
  • Patent number: 5237977
    Abstract: A vehicle fuel system for a vehicle which has a fuel tank remote from the engine of the vehicle and a fuel pump remote from said tank and a canister in said tank to receive return fuel from a pressure regulator in said system. A fuel flow passage carries fuel from the main fuel tank to the pump. Under conditions of low fuel in the main fuel tank, a valve associated with the canister opens in response to side swerving motion of the vehicle to allow flow of fuel from the canister to the fuel flow passage leading to the pump to prevent starving of the engine due to low flow from the main tank.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: August 24, 1993
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 5218942
    Abstract: A modular fuel sender in a fuel tank of a motor vehicle includes a reservoir, a fuel pump in the reservoir, a low pressure conduit conducting hot return fuel back to the reservoir, a secondary pump in the reservoir for pumping new fuel from the tank into the reservoir, and a control which effects a recirculation mode of secondary pump operation when the new fuel level in the fuel tank is above a predetermined low level and a scavenge mode of secondary pump operation when the new fuel level in the reservoir is below the predetermined low level. In the recirculation mode, the secondary pump recirculates reservoir fuel to avoid overflowing hot fuel into the fuel tank. In the scavenge mode, the secondary pump continuously maintains a partial vacuum in a screen in the fuel tank regardless of the fuel level in the reservoir to maximize new fuel scavenged from the fuel tank before fuel starvation occurs.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: June 15, 1993
    Assignee: General Motors Corporation
    Inventors: Timothy F. Coha, Ulf Sawert, Neal M. Letendre, William S. Zimmerman, Gregory K. Rasmussen, Leon Pitek, Dan H. Emmert
  • Patent number: 5197445
    Abstract: The invention is directed to a system for supplying an internal combustion engine with fuel which includes the following components: a tank; a reservoir for fuel; a pump; a switchover valve, to which the tank, the reservoir and the pump are connected; a metering device to meter fuel to the intake air; a feed line to feed fuel from the pump to the metering device; a line into the reservoir for refilling the reservoir with a component flow of fuel pumped by the pump; and a control unit for driving the pump, the metering device and the switchover valve. The control unit is configured so that it switches the switchover valve in case of a just started engine, so that the fuel is pumped by the pump out of the reservoir into the feed line, and when the engine is warm, the switchover valve is switched so that the pump pumps fuel from the tank into the feed line.
    Type: Grant
    Filed: September 4, 1991
    Date of Patent: March 30, 1993
    Assignee: Robert Bosch GmbH
    Inventor: John Casari
  • Patent number: 5186152
    Abstract: An automotive fuel system including a reservoir in a fuel tank of the vehicle and a fuel pump in the reservoir. Surplus fuel from a fuel injection system is returned to and confined in the reservoir. An inside screen is disposed between an inlet of the fuel pump and an inlet port from the fuel tank into the reservoir. The inside screen has a porous wall permeable to liquid fuel and impermeable to vapor when partially submerged in liquid fuel. An outside screen surrounds the inlet port in the fuel tank and has a porous wall permeable to liquid fuel and impermeable to vapor when partially submerged in liquid fuel. The porous wall of the inside and outside screens cooperate in sustaining suction at the fuel pump inlet when the reservoir is depleted.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: February 16, 1993
    Assignee: General Motors Corporation
    Inventors: Michael L. Cortochiato, Sammy C. Lumetta
  • Patent number: 5186200
    Abstract: The present invention relates to a rotary tank system to be provided inside a fuel tank for vehicles such as automobiles which is characterized in that it basically comprises two parts that are made of a material that can be hot-welded together, and at least a portion each of the contact faces between the first and the second halves of the tank is heated to molten state and subsequently abutted against each other in order to weld the two halves into an integral member.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: February 16, 1993
    Assignee: Nifco, Inc.
    Inventors: Shigeru Kimura, Atsushi Takahashi, Masaharu Shibao, Kazuyuki Tomioka
  • Patent number: 5181537
    Abstract: A fluid handling system comprises a vessel having an interior, an outlet collector disposed in the vessel having a plurality of flow tubes disposed through its bottom, the flow tubes all having substantially identical lengths and substantially identical diameters and the flow tubes all having their upper ends at substantial identical elevations; and a level controller for maintaining a liquid level in the collector interior below the upper ends of the flow tubes. In a presently preferred embodiment, the flow tubes have a flow resistance which is very large compared to the flow resistance through the vessel, the flow tubes are substantially uniformally distributed across a horizontal cross section of the vessel, and the primary flow direction through the vessel is vertical.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: January 26, 1993
    Assignee: Conoco Inc.
    Inventor: Maston L. Powers
  • Patent number: 5170990
    Abstract: A vacuum valve includes a first sealing member in contact with the space on a low pressure side of a space shut-off of the vacuum valve is composed of an inorganic material, and a second sealing member in contact with the space on the high pressure side is composed of an elastomer. The sealing state of the vacuum valve is made adjustable in two steps such that the first sealing member and the second sealing member are closed in the first sealing step and in the second sealing step the first sealing member is closed and the second sealing member is open.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: December 15, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Osamu Kamiya, Masao Ueki
  • Patent number: 5129413
    Abstract: A self washing water storage tank has a floor, a cylindrical, generally upright, peripheral concrete wall which sits on the floor and extends around and defines a water storage chamber, and a concrete roof that is mounted atop the wall in substantial covering relationship to the chamber. The roof is essentially flat and has an internal surface which faces the chamber. The tank is arranged such that during the fill cycle the water level rises to a high water level which is above the interior surface of the roof so that such surface is washed during each fill cycle to prevent damage from corrosive gases which may escape from the water and accumulate on the interior surfaces of the tank above the water level.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: July 14, 1992
    Assignee: The Crom Corporation
    Inventors: Hugh E. Puder, Charles S. Hanskat
  • Patent number: 5127432
    Abstract: The present invention provides a fuel tank comprising a generally planar fuel tank bottom and upstanding wall on the fuel tank bottom. A passage within the wall has a throat area for admitting fuel to the reservoir. A baffle attached to the wall and placed adjacent the throat area deflects fuel away from the passage. The reservoir is designed to contain a first minimum quantity of fuel when the vehicle is approximately level and a second minimum quantity of fuel when the vehicle is inclined, the second quantity of fuel being roughly one-third the first minimum quantity of fuel. The reservoir acts to confine fuel within an area to be withdrawn by a fuel pump or pick-up nozzle and supplied to an engine.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: July 7, 1992
    Assignee: Ford Motor Company
    Inventors: Daniel M. Duhaime, James P. Hyde
  • Patent number: 5111844
    Abstract: An automotive fuel system including a reservoir having upper and lower chambers on opposite sides of a partition in the reservoir, a high pressure fuel pump having an inlet connected to the lower chamber, a low pressure fuel overage return pipe returning overage fuel directly to the lower chamber, and a low pressure pump transferring fuel from the tank directly to the upper chamber. A drain in the partition conducts gravity induced fuel flow from the upper chamber to the lower chamber at a rate equal to the difference between the rate at which the high pressure pump withdraws fuel from the lower chamber and the rate at which overage is returned to the lower chamber through the overage return pipe.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: May 12, 1992
    Assignee: General Motors Corporation
    Inventors: Dan H. Emmert, John E. Creager, Timothy F. Coha
  • Patent number: 5107889
    Abstract: A reservoir arrangement for use in an automotive fuel tank includes a reservoir body in which fuel is guided and from which fuel is pumped. The reservoir body defines a fuel passage by upwardly depressing its bottom surface and fittingly engaged the depressed surface with a chamber plate. The chamber plate is made of a material whose swelling amount by fuel is larger than that of the reservoir body, thereby causing a tight fit of the chamber plate.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: April 28, 1992
    Assignees: Nissan Motor Company Ltd., Nifco Inc.
    Inventors: Michiaki Sasaki, Junya Ohno, Katsunori Ozaki
  • Patent number: 5103863
    Abstract: A fluid handling system includes a vessel having an inlet and an outlet. A first fluid transfer device is associated with the inlet, and a second is associated with the outlet. The fluid transfer devices substantially reduce short-circuiting of fluid flow through the vessel between the inlet and outlet independently of a fluid flow rate through the vessel while continuously transferring fluid through the inlet and the outlet. Each of the fluid transfer devices includes a plurality of hydraulically parallel flow passages defined therein. The flow passages communicate the interior of the vessel with either the inlet or the outlet. The flow passages have substantially identical flow characteristics such that for any differential pressure across all of the passages of one device the passages have substantially equal fluid flow rates therethrough.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: April 14, 1992
    Assignee: Conoco Inc.
    Inventor: Maston L. Powers
  • Patent number: 5070849
    Abstract: A modular fuel delivery system including a reservoir in a fuel tank, an electric fuel pump in the reservoir, and a jet pump for pumping fuel from the fuel tank into the reservoir wherein overflow from the reservoir is recirculated by the jet pump back into the reservoir to minimize mixing of potentially hot overflow with cooler bulk fuel in the fuel tank. A recirculation fluid flow path extends from the reservoir to a secondary inlet of the jet pump adjacent a small diameter end of a venturi passage in the latter. A valve closes the recirculation flow path when the reservoir is not overflowing and opens the recirculation flow path when the reservoir is overflowing. A portion of the recirculation flow path is above the maximum surface elevation of fuel in the fuel tank so that the pressure head at the recirculation inlet exceeds the pressure head at the main inlet of the jet pump open to the fuel tank.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: December 10, 1991
    Assignee: General Motors Corporation
    Inventors: Gregory E. Rich, Donald J. Armstrong
  • Patent number: 5058557
    Abstract: An apparatus for delivery of fuel from a storage tank to an internal combustion engine of a motor vehicle includes a pot-shaped container secured in the storage tank and a pump for delivery fluid from the storage tank into the container. An electric motor drives the pump. A second pump driven by the same electric motor delivers fluid from the container to the internal combustion engine. The second pump is located with the electric motor in a common housing. A pumping chamber is formed at an outer side of the bottom of the container, and the first mentioned pump has a delivery member located in the pumping chamber and driven by this electric motor.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: October 22, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Kurt Frank, Hermann Nusser, Willi Strohl
  • Patent number: 5050567
    Abstract: A fuel supply system comprising a main tank for storing a fuel; a subtank provided in the main tank for storing a part of the fuel; a first communication line for communicating the main tank to the subtank; a first pump provided in the first communication line for supplying the fuel from the main tank through the first communication line to the subtank; a first mechanism provided downstream of the first pump in the first communication line for limiting an amount of the fuel to be supplied from the first pump to the subtank and maintaining a level of the fuel to be stored in the subtank; a second communication line for communicating the subtank to an engine; a second pump provided in the second communication line for supplying the fuel from the subtank through the second communication line to the engine; a fuel return pipe for returning an uncomsumed part of the fuel from the engine to the subtank; and a second mechanism for regulating an amount of the fuel to be supplied from the second pump to the engine acc
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: September 24, 1991
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Isamu Suzuki
  • Patent number: 5038741
    Abstract: An in-tank fuel module adapted to be mounted within a fuel tank of predetermined vertical dimension through a circular opening in an upper wall of the tank. The module includes a canister having a one-piece hollow cylindrical external wall of blow-molded plastic construction and of diameter to fit through the tank wall opening. Circumferential convolutions that extend around the wall form axially resilient bellows in the canister wall, and a fuel inlet is disposed at the lower portion of the canister. A cover is fastened to the upper edge of the canister, and is dimension to close the opening in the tank top wall with the canister extending vertically through the tank. The canister is axially dimensioned with respect to the vertical dimension of the tank so that the bellows in the canister sidewall are axially compressed and resiliently hold the lower portion of the canister against the bottom wall of the tank.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: August 13, 1991
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 5029611
    Abstract: A fuel supply apparatus for an internal combustion engine disposed in the fuel tank of automotive vehicles including a reservoir container on the tank bottom, a feed conduit through which the fuel is suctioned from the fuel tank 1 a return conduit through which excess fuel returned to the tank from the engine, and two inlet conduits. The first inlet conduit extends diagonally across the tank bottom having the first opening on the container wall and the first open end spaced about 180.degree. opposite the side of container where the first opening is opened. The second inlet conduit extends along the container wall having the second open end opened adjacent the corner diagonally opposite the first open end and opening on the wall located about 180.degree. opposite the second open end. The outlet port of the return conduit extends adjacent the open end of the first inlet conduit and forms an ejector portion with the open end.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: July 9, 1991
    Assignee: Nissan Motor Company, Limited
    Inventor: Michiaki Sasaki
  • Patent number: 5016670
    Abstract: In a fuel tank structure for an automotive vehicle, a fuel collector unit includes a collector body which is provided with a fuel collecting chamber and a fuel passage. The fuel passage has an inlet adjacent to a bottom wall of a tank body and an outlet opening toward the fuel collecting chamber for conducting fuel in the tank body into the fuel collecting chamber. The fuel passage is arranged such that the fuel below a predetermined vertical level at a certain location in the fuel passage is prevented from flowing out through the inlet. The fuel collector unit further includes an ejector which ejects oversupplied return fuel into the fuel passage through the inlet so as to suck the fuel therearound. The sucked fuel is mixed with the ejected return fuel and introduced into the fuel passage through the inlet.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: May 21, 1991
    Assignee: Nissan Motor Company, Limited
    Inventors: Michiaki Sasaki, Katsunori Ozaki
  • Patent number: 4989572
    Abstract: Warmed returned fuel from a vehicle fuel injection system is returned only a segregating canister in the tank, and pumped back therefrom preferentially, with make up fuel allowed in only as needed. Overall heating of the stored fuel, and consequent running losses, are substantially reduced, with no ill effects on vehicle operation.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: February 5, 1991
    Assignee: General Motors Corporation
    Inventors: Roy A. Giacomazzi, S. Raghuma Reddy, Gregory E. Rich
  • Patent number: 4928657
    Abstract: A fuel delivery system for automotive engine and like applications comprises a canister for positioning within a fuel tank so as to be surrounded by fuel in the tank. An electric-motor fuel pump has an inlet and an outlet for feeding fuel under pressure from the tank to the engine. Excess fuel is returned from the engine to the canister. A fuel level sensor includes a pressure sensor positioned at a lower portion of the canister and responsive to head pressure within the canister and within the surrounding tank for providing an electrical signal as a function of a difference between such pressures. An indicator is responsive to such electrical signal for displaying tank fuel level to an operator.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: May 29, 1990
    Assignee: Walbro Corporation
    Inventor: Brian K. Asselin
  • Patent number: 4926829
    Abstract: A fuel delivery system for internal combustion engines in which an electric-motor fuel pump supplies fuel under pressure from a tank to a fuel injector carried by the engine, and excess fuel is returned by a pressure regulator from the engine to the supply tank. A restriction is positioned in the fuel return line to restrict flow of return fuel therethrough, and thereby create a back-pressure of fuel in the return line. A pressure sensor is coupled to the return line between the pressure regulator and the restriction and drives the fuel pump as an inverse function of fuel pressure in the return line, and thus as a direct function of fuel demand at the engine.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: May 22, 1990
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 4925552
    Abstract: An arrangement for operation to reduce organic contaminant concentration in water passing therethrough as provided. The arrangement includes at least one reactor comprising a plurality of treatment chambers oriented in series, each chamber including an upstream downcomer portion and a downstream column portion separated by a wall member. Fluid flow is provided between a downcomer portion and the column portion. Means are provided such that water can flow through any associated chamber by introduction into an upper portion of the downcomer portion of the chamber, with passage downwardly to a feed space and a bottom portion of the column portion of the chamber and upwardly through the column portion. The water then flows outwardly from the chamber, into a next downstream chamber if one is provided.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: May 15, 1990
    Assignee: BioTrol, Inc.
    Inventors: George F. Bateson, Thomas J. Chresand, Joel D. Moore, Terrence L. Nayes
  • Patent number: 4899784
    Abstract: A fuel tank contains a swirl pot into which a fuel return pipe from the engine is directed and which induces fuel flow from the tank into the pot so that the fuel level in the pot is kept high. Fuel flow into the pot is induced by directing a flow of fuel from the return pipe over a ramp past an opening into the tank so as to create a low pressure area at the opening.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: February 13, 1990
    Assignee: Ford Motor Company
    Inventors: Michael J. Woodgate, Ronald P. Pardy
  • Patent number: 4893647
    Abstract: A fuel delivery system for automobile engine and like applications in which a canister is positioned within a fuel tank and has an open layer end and an internal wall spaced from the lower canister end for dividing the canister into upper and lower chambers. An electric fuel pump is carried by the canister wall within the upper chamber and has an inlet coupled through the wall to the lower chamber. The pump outlet feeds fuel under pressure to an engine, and excess fuel is returned to the upper chamber which thus forms a fuel reservoir. A valve is responsive to fuel level in the upper chamber for selectively feeding fuel from the upper reservoir chamber to the lower chamber, and then to the pump inlet, when fuel level in the upper chamber approaches maximum reservoir capacity.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: January 16, 1990
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 4878518
    Abstract: A fuel delivery systems for automotive engine and like applications, which comprises a canister for positioning within a fuel tank having a lower end with a fuel opening and an internal wall spaced from such lower end dividing the canister into upper and lower fuel chambers. An electric-motor fuel pump is positioned within the upper chamber and has a fuel inlet, a primary fuel outlet for feeding high-volume fuel under pressure to an engine, and a secondary outlet for likewise supplying fuel under pressure at smaller volume than the primary outlet. A fluid conduit extends through the canister internal wall, and has an inlet end in the lower chamber and an outlet end positioned in the upper chamber. A nozzle couples the secondary pump outlet to the conduit for aspirating fuel through the conduit from the lower chamber to the upper chamber.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: November 7, 1989
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 4878816
    Abstract: A fuel delivery system for automotive engine and like applications which comprises a canister for positioning within a fuel tank having a lower end with a fuel opening and an internal wall spaced from such lower end dividing the canister into upper and lower fuel chambers. An electric-motor fuel pump is positioned within the upper chamber, has a fuel inlet coupled to the lower chamber through the canister wall and a primary outlet for feeding fuel under pressure to an engine. A fluid conduit separate from the pump inlet extends through the upper and lower chamber-separating wall, with an inlet end being positioned within the lower chamber and an outlet end being positioned within the upper chamber. A secondary outlet from the pump supplies fuel under pressure through a nozzle to the fluid conduit for aspirating vapor and fuel through the fluid conduit into the upper chamber. Any vapors entrained in the fuel fed to the upper canister chamber are thus permitted to vent through the canister top.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: November 7, 1989
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 4852758
    Abstract: A plastic fuel tank comprises a large main tank (1) and a small collecting tank connected to the main tank (1) by a flow-through opening (7). The collecting tank (3) is completely pulled into the underside (11) of the main tank (1), and includes vaulted lateral walls (31) which are symmetrical in all directions and expand into a bottom part (32) with an enlarged surface. The collecting tank (3) is partly surrounded by a connecting channel (8) opening from the main tank (1). The connecting channel (8) communicates with the collecting tank (3) via an admission bore (10). A nozzle (12) from the fuel return line (6) opens into the connecting channel (8) at a point opposite admission bore (10) to help propel fuel from the connecting channel (8) into the collecting tank (3).
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: August 1, 1989
    Assignee: Schmalbach-Lubeca AG
    Inventors: Kalman Kormendi, Dieter Lampart, Fritz Mannherz, Dieter Scheurenbrand
  • Patent number: 4844276
    Abstract: The invention relates to a vessel for receiving suspensions containing sos such as radioactive liquids. The vessel includes a bottom wall inclined towards an outlet opening formed therein and a spraying arrangement in the vicinity of the inner walls. In order to reliably discharge solid deposits on the bottom of the vessel while using a minimum of flushing liquid, the bottom of the vessel is provided with a channel extending in the direction toward the outlet opening. A flushing tube pointing into the channel is provided at the highest elevation thereof. The solid/liquid mixture is flushed out of the vessel with great effectiveness by means of a directed delivery of the flushing liquid into the channel.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: July 4, 1989
    Assignee: Wiederaufarbeitungsanlage Karlsruhe Betriebsgesellschaft mbH
    Inventors: Peter Kunze, deceased, Nina Kunze, heir, by Petra Kunze, heir, by Jochen Kunze, heir
  • Patent number: 4842006
    Abstract: A dashpot for fuel tanks is designed such that gas bubbles produced in the latter can no longer cause troublesome noises within the fuel tank. This is achieved by means of a gas separation space which is separated from the dashpot intake chamber, into which a fuel return line opens and to the upper wall of which a degassing line discharging above the maxiumum fuel level in the fuel tank is connected.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: June 27, 1989
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Dieter Scheurenbrand, Helmut Wawra, Wolfgang Kleineberg
  • Patent number: 4831990
    Abstract: A fuel delivery system for automobile engine and like applications in which a canister is positioned within a fuel tank and has an open lower end and an internal wall spaced from the lower canister end for dividing the canister into upper and lower chambers. An electric fuel pump is carried by the canister wall within the upper chamber and has an inlet coupled through the wall to the lower chamber. The pump outlet feeds fuel under pressure to an engine, and excess fuel is returned to the upper chamber which thus forms a fuel reservoir. A valve is responsive to fuel level in the upper chamber for selectively feeding fuel from the upper reservoir chamber to the lower chamber, and thence to the pump inlet, when fuel level in the upper chamber approaches maximum reservoir capacity.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: May 23, 1989
    Assignee: Walbro Corporation
    Inventor: Charles H. Tuckey
  • Patent number: 4819833
    Abstract: A measuring, metering, and mixing can, particularly for gasoline and oil, including a gasoline container with filler cap and spout; and oil container with filler cap; visual type gauges for each container; and a plunger-cylinder metering unit for withdrawing a selected amount of oil from the oil container and injecting the same into the gasoline can for producing an oil-gasoline mixture. The visual gauge on the gasoline container and the visual gauge on the oil container permit the metering of an exact amount of oil, dependent upon the amount of gasoline within the gasoline container for a precise ratio of oil-gasoline in the mixture. A hinged cover on the can protects the metering equipment during periods of non-use.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: April 11, 1989
    Assignee: Hudd Investment Trust, Inc.
    Inventors: Earl M. Huddleston, Garry F. Jervis
  • Patent number: 4809745
    Abstract: An oil container for the supply of hydraulic power circuits with a storage function and for receiving oil returned from the circuits. The oil container has storage means and comprises walls and internal partitions constituting a multifunctional system, the partitions defining a collection space adapted when required to accept at least a major part of the oil in the power circuit, an intake space for oil returned from the system, a transition space connected with an outlet of the intake space and separated from the intake space by an oil-permeable partition, a storage space connected with an outlet of the transition space and separated from the transition space by an oil-permeable partition so that the oil is returned into the oil container. The oil returning to the container owing to leakage or by the operation of valves is cooled, calmed, filtered and freed of bubbles on passing through the intake space and the transition space into the storage space.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: March 7, 1989
    Assignee: MAN Nutzfahrzeuge GmbH
    Inventor: Rudolf Hormann
  • Patent number: 4770427
    Abstract: An aircraft loader having a mobile frame and hydraulically actuated components, includes a substantially rectangular frame hinged to and cantilevered from the mobile frame. The rectangular frame includes a pair of long tubes and a pair of short tubes which are sealingly connected to form a fuel tank. An internal combustion engine is mounted on the rectangular frame and drives a hydraulic pump which supplies hydraulic fluid under pressure to the components.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: September 13, 1988
    Assignee: FMC Corporation
    Inventors: Howard E. Howell, William C. Dean
  • Patent number: 4763632
    Abstract: The present invention relates to a filtering fuel collector arranged inside a fuel tank to provide a running reserve fuel supply for a combustion engine when subjected to considerable g forces or while inclined. A running fuel reserve is obtained by making the fuel collector out of a porous, dimensionally stable material capable of supplying the collector with fuel when the engine is running.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: August 16, 1988
    Assignee: Scandmec AB
    Inventor: Jan Andreasson
  • Patent number: 4761227
    Abstract: An aquarium filter for mounting externally of an aquarium tank. The filter includes an intake chamber for receiving contaminated aquarium water from the aquarium tank and a filtering chamber in flow communication with the intake chamber for filtering of the contaminated water and subsequent return of the clean water back to the aquarium tank. An impeller unit driven by a rotor magnetically coupled to a removably attached electromagnetic stator unit serves to draw the water from the aquarium tank to the intake chamber through a removable intake tube assembly. A partition wall separates the intake chamber from the filtering chamber for the water filling the intake chamber to overflow the partition wall into the filtering chamber. Upon stoppage of the impeller, the water from the intake chamber siphons back into the aquarium tank.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: August 2, 1988
    Assignee: Willinger Bros.
    Inventors: Allan H. Willinger, Klaus Woltmann
  • Patent number: 4717163
    Abstract: The known fuel tank for straddled type vehicles that is formed to have an inverse U-shaped transverse cross-section with its lower section bifurcated into left and right branch portions so as to straddle a main pipe of the straddled type vehicle from the above, is improved in that at least one of the rear bottom surface and the front bottom surface of either one of the lower bifurcated branch portions of the fuel tank is formed in a slant surface inclined upwards toward the corresponding end of the fuel tank.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: January 5, 1988
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Kensuke Tsukiji
  • Patent number: 4715399
    Abstract: A system for providing substantially gas-free liquid propellant to the engine(s) of a rocket or space vehicle comprises a storage tank (10) having a first opening (15) that communicates with a "fill, drain and feed" line (17) and a second opening (18) that communicates with a "pressurant and vent" line (20). A hollow trap (13) having a porous inlet window (22) and an exit port (21), which is aligned with the first opening (15), is positioned within the tank (10). A liner (14) having a plurality of porous windows (24) is positioned inside the trap (13), and is secured to the trap (13) circumjacent the inlet window (22) and circumjacent the exit port (21), but is elsewhere spaced apart from the interior wall of the trap (13).
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: December 29, 1987
    Inventors: Don E. Jaekle, Jr., R. K. Grove
  • Patent number: 4708170
    Abstract: A motor vehicle fuel tank is disclosed, having a fluid pressure thermoformed tank wall comprising a bottom wall and opposed side walls unitary with and extending upwardly from the bottom wall. The fuel tank is characterized in that it has a fuel reservoir unitary with the tank wall and, specifically, formed by convolutions in the bottom wall of the tank. The fuel reservoir comprises two opposed substantially C-shaped ridges extending upwardly into the tank from the plane of the bottom wall, each such ridge extending from a corresponding one of the side walls toward the opposed side wall to a second end, diminishing in height to approximnately the plane of the bottom wall at such second end. The two C-shaped ridges cooperate to partially surround a portion of the surface area of the bottom wall of the fuel tank. A channel between each ridge and the end of the other ridge permits fuel to flow into the fuel reservoir even during low fuel conditions.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: November 24, 1987
    Assignee: Ford Motor Company
    Inventor: Wallace O. Bailey
  • Patent number: 4677917
    Abstract: A high volume covered railway hopper car is disclosed which has vertical end walls so as to fully utilize the space over the trucks of the car for lading volume. An automatic pneumatic unloading system is provided so as to unload a pulverant lading from the end compartments or hoppers, as well as the center, of the car, thus eliminating the necessity of sloped end sheets. A pneumatic loading system is provided which permits loading from below and thus permits the elimination of hatches, walkways, and the like on the roof of the car so as to permit the roof to extend substantially the full extent of AAR height clearances thereby to further maximize the lading volume of the car.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: July 7, 1987
    Assignee: ACF Industries, Incorporated
    Inventors: Richard H. Dugge, Eugene J. Cordani
  • Patent number: 4674658
    Abstract: A device for mixing and dispensing fluid is disclosed and comprises first and second containers each having a valve for dispensing fluid. The valve is normally biased to a closed position and operable against said bias to an open position. Piston and cylinder elements define a chamber for receiving the fluids. The piston element is movable in response to dispensing of fluid into said chamber. The piston element is operably connected to the valves and exerts a force on the valves to maintain them in an open position. The mixed fluids in the chamber are thereafter dispensed through a handpiece.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: June 23, 1987
    Assignee: Risdon Corporation
    Inventor: Owen F. Van Brocklin
  • Patent number: 4669501
    Abstract: An inside arrangement to be fixed to an interior bottom of a fuel tank for surrounding a fuel outlet comprises a main reservoir of metal and a complementary reservoir of synthetic resin. The main reservoir is shaped like a rectangular box to form a reservoir chamber therein, and formed with a mounting hole. The complementary reservoir has an antechamber formed therein, and a tubular portion projecting outwardly from one side wall and having stopper projections. The complementary reservoir is fixed to the main reservoir simply by inserting the tubular portion into the mounting hole of the main reservoir.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: June 2, 1987
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Teruo Takahashi
  • Patent number: 4638836
    Abstract: A motor vehicle fuel tank is disclosed, having a fluid pressure thermoformed tank wall comprising a bottom wall and opposed side walls unitary with and extending upwardly from the bottom wall. The fuel tank is characterized in that it has a fuel reservoir unitary with the tank wall and, specifically, formed by convolutions in the bottom wall of the tank. The fuel reservoir comprises two opposed substantially C-shaped ridges extending upwardly into the tank from the plane of the bottom wall, each such ridge extending from a corresponding one of the side walls toward the opposed side wall to a second end, diminishing in height to approximately the plane of the bottom wall at such second end. The two C-shaped ridges cooperate to partially surround a portion of the surface area of the bottom wall of the fuel tank. A channel between each ridge and the end of the other ridge permits fuel to flow into the fuel reservoir even during low fuel conditions.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: January 27, 1987
    Assignee: Ford Motor Company
    Inventor: Wallace O. Bailey
  • Patent number: 4612951
    Abstract: A water storage reservoir, prevailingly underground, comprising a first reservoir provided above the ground level and connected to water feeding and distribution means, an underground tank which is also connected to said water feeding means, a second reservoir provided inside said tank and on its bottom, and connected to said tank through opening means, the pressure of the water columns in series in the first reservoir and in the tank being always lower than the water feeding pressure.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: September 23, 1986
    Inventor: Fabio Desogus
  • Patent number: 4587992
    Abstract: A reservoir for hydraulic fluids and hydrocarbon fluids having an outer tank, an inner tank contained therein, an inlet conduit for the delivery of fluids to the outer tank with a minimum of turbulence, an outlet for withdrawal of fluids from the inner tank, and a vent for venting air into and out of the outer tank.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: May 13, 1986
    Inventor: Donald E. Thompson