Abstract: A fuel tank includes fuel pipes which are configured to resist bubble disruption of the fuel pump, minimizing the risk of fuel running out when the tank level becomes low. The fuel tank includes a fuel tank body with a fuel feed conduit operatively attached thereto, for feeding fuel to a fuel injection system. The fuel feed conduit has a pickup inlet which opens into the fuel tank body, allowing fuel to be drawn outwardly by a fuel pump of the fuel injection system. The fuel tank also includes a fuel return conduit with a return port inside the fuel tank body, for returning unused fuel therethrough to the fuel tank body. The return port of the fuel return conduit is directed toward the pickup inlet of the fuel feed conduit. The fuel feed and return conduits may be fixed to the fuel tank body using a plate-shaped member.

Abstract: A meter coupled in close proximity to an underground storage tank fuel pipe that delivers fuel from the underground storage tank to fuel dispensers in a service station environment. The meter measures the total amount of fuel drawn from the underground storage tank. The meter may be placed in a submersible turbine pump or in the main conduit that carries fuel to the fuel dispensers. The meter measurement is compared to the meter measurements in the individual fuel dispensers that receive the fuel drawn from the underground storage tank to determine if a discrepancy exists. A discrepancy may be indicative of meter tampering, meter calibration issues, and/or a leak in the fuel pipeline between the underground storage tank and the fuel dispensers. A leak detection test may be automatically performed if such discrepancy exists and/or an alarm condition generated and communicated.

Abstract: A pump exerts pressure on fluid that has higher saturation pressure than atmospheric pressure at room temperature in a fluid reserving chamber in a fluid tank. The pump is located near the fluid tank. The pump has a housing and a heat generating mechanism. The housing defines a pump chamber, a motor chamber and a communication passage between the pump chamber and the motor chamber and includes at least one introducing port for introducing the fluid from the fluid reserving chamber into the housing and a bleeding port located above the introducing port for returning the fluid from the housing to the fluid reserving chamber. The heat generating mechanism is located in the housing. The fluid circulates into the housing through the introducing port and out of the housing through the bleeding port for substantially reducing the temperature in the housing.

Abstract: A water supply sub-system for connection to a main water supply system includes a storage tank having an inlet with a flow control valve for connection to the main water supply system. The sub-system may be disconnected from the main system and configured as a closed system for disinfecting the sub-system. An outlet line connects the storage tank to a pump that pumps water from the tank to a sub-system supply line. One or more branch connections may connect the sub-system supply line to high-demand water using devices, such as dialysis machines. The supply line may be a feedback loop. A shunt feedback loop parallel to the feedback loop of the supply line has a pressure control valve that regulates pressure in the supply line feedback loop. A filtration device may also be included to ensure the purity of the water circulating through the sub-system.

Abstract: A fuel supply unit 10 includes a fuel reservoir 22 for holding fuel, a fuel pump 18 within the reservoir for pumping fuel from the reservoir, a jet pump assembly 16 within the reservoir for drawing fuel from a fuel tank into the reservoir, and a gasket 24 operatively coupled with a portion of the jet pump assembly and disposed between the portion of the jet pump assembly and an interior surface of the reservoir so as to decouple the jet pump assembly from the reservoir.

Abstract: A fuel supply unit, includes: 1) a fuel pump including; i) a motor section, and ii) a pump section driven by the motor section, the pump section pumping a fuel; and 2) a fuel tank provided with; i) a including; a) an inner section for housing therein one of the following: ?) the motor section, and ?) a first part of the motor section, b) an outer section provided with one of the following: ?) the pump section, with the motor section housed in the inner section, and ?) the pump section and a second part of the motor section, with the first part of the motor section housed in the inner section. The inner section of the motor housing bulkhead is substantially sealably separated from the outer section of the motor housing bulkhead, in such a manner as to bring about an oil tightness.

Abstract: In a reservoir unit installed in a fuel tank, in order to reduce noise generated from the engaging faces between guide rails extending from a plate-shaped portion of an upper subunit, fixed to the top face of the fuel tank, to a lower subunit, and slots provided in a reservoir in the lower subunit, a reservoir is configured of an upper subunit, a lower subunit and an elastic member, wherein the upper subunit is provided with a plate-shaped portion to block an opening formed in the fuel tank and guide rails extending from that plate-shaped portion to the bottom of the fuel tank; and slots and to slidably accept those guide rails are integrally formed with a reservoir. A metal plate intervenes between at least one position of the engaging face of the inner circumference of each slot and a guide rail, and the guide rails are formed in a flat plate shape, with slits extending upward from the lower part being formed at the tip of each.

Abstract: In order to fit a reservoir unit to be installed in a fuel tank in such a manner that the air-tightness of the fuel tank be not lost even if a large acceleration or deceleration works on the fuel tank, the reservoir unit is configured of an upper subunit, a lower subunit and an elastic member. The upper subunit is provided with a plate-shaped portion to block an opening formed in the fuel tank and guide rails and extending from that plate-shaped portion to the bottom of the fuel tank, and the two elements are integrally molded of resin. The lower subunit is provided with a resin-built reservoir, and slots to slidably accept the guide rails are integrally molded with the reservoir. When a large force works on the reservoir unit and the fuel tank, the guide rails and are destroyed before the plate-shaped portion would be, so that the destruction of the plate-shaped portion can be prevented.

Abstract: A pump, for supplying high pressure fuel from a fuel tank to an engine via a common rail, includes a motor assembly (20) mounted on top of the fuel tank, a pump assembly (26) positioned within the fuel tank, and a support column (32) rotatably connecting the motor assembly to the pump assembly. A high pressure pump sub-assembly (46) includes a pump body (48) having a drive bore (50) and multiple plunger bores (60) formed therein. The external profile of a drive member (58) which is rotatable within the drive bore engages the radially inner end of pumping plungers (62) disposed in each of the plunger bores for a portion of each revolution to reciprocally move the plungers between radially inner and outer limit positions. Reciprocation towards the inner limit position induces a low pressure in the radially outer end of the plunger bore, thereby drawing fuel via the drive bore without the aid of a low pressure pump.

Abstract: Microfluidic systems and devices having integrated fluidic impedances are provided. Such impedances hinder the passage of fluid at low differential pressures, but allow fluid flow at higher differential pressures. Impedances are formed at the overlap of two or more microfluidic channels contained in different layers of a device. Such devices can be rapidly prototyped and can be assembled to contain multiple fluidic impedances to perform complex fluid handling tasks, including the metering of small aliquots from a larger fluid volume. Various means may be used to overcome the fluidic impedances.

Abstract: A fluid transfer system includes elongated conduits connected at one end with couplings to a plurality of fluid reservoirs of a machine or engine and at the other end with a control valve for selective quick evacuation. Evacuation is powered by a pump operably connected to the control valve. Another embodiment includes a first pump for the evacuation of an engine oil reservoir and a second pump for the selective evacuation of transmission and hydraulic fluid reservoirs. The control valve and the pumps may be operated remotely through electrical switches on brackets or on a service panel. Associated methods of removing fluids and replacing fluids from a plurality of reservoirs includes coupling the fluid transfer system to the reservoirs.

Abstract: In a fuel feed unit, two anti-surge pots are connected to one another within a fuel tank by means of a connecting element. For installation, the anti-surge pots are introduced into the fuel tank singly through an installation opening, and are then connected to one another. This means that only a single installation opening is required in the fuel tank for two anti-surge pots.

Abstract: A reservoir assembly for a fuel pump module includes a plurality of sections. The sections include at least a bottom section and a top section joined together to provide a predetermined height and volume.

Abstract: A pump station including a structure that includes at least one inlet chamber and at least one discharge chamber arranged on a different level. A separating wall is arranged within the structure between the two chambers, and at least one pump delivers a liquid from the inlet chamber through the separating wall into the discharge chamber. The discharge chamber includes a discharge opening having an upper edge which is below the liquid level that is present in a discharge downstream of the discharge chamber. The pump is provided with an upwardly extending liquid conveying device which ends in an open outlet that opens into the discharge chamber above the upper edge of the discharge opening.

Abstract: A fitting structure for attaching a fuel pump in a fuel tank, which includes a gasket surrounding a pump insertion hole of the fuel tank. The gasket is collapsed by a presser ring through a flange portion of the fuel pump, thus enabling the gasket to provide an effective seal between the fuel pump and the fuel tank. A nut fastened onto a bolt is used to bring a second valley portion of the presser ring into close contact with a first mount portion of a fixed side ring that has been preliminarily welded to the fuel tank, thus securely fitting the fuel pump to the fuel tank. As compared with a conventional fitting structure using a bayonet or snap fit connection, wherein the fitting structure must be turned against the gasket to be fitted into a secure position, this new fitting structure presses the gasket into place, thus avoiding the turning motion and the resulting damage that may be caused to the gasket.

Abstract: In order to provide a simply-structured fuel filter which permits soaking at least part of a filter unit all the time in fuel in a reservoir, a reservoir unit is configured of a resin-built cylindrical reservoir having a bottom arranged on the bottom of a fuel tank, a primary filter installed near the inner bottom of that reservoir and a fuel pump sucking fuel in the reservoir through the primary filter, wherein projections protruding upward from the inner bottom of the reservoir are integrally molded and engaging holes to engage with those projections are bored in the circumference of the primary filter.

Abstract: Method and multipurpose apparatus for internally cleaning a hydraulic control system are disclosed. The method is carried out by establishing a turbulent flow of cleaning fluid through the hydraulic control system and maintaining the turbulent flow until the hydraulic control system has been cleaned without diverting a portion of cleaning fluid through a bypass valve, by use of a variable speed pump coupled to a fluid accumulator. The apparatus comprises a filtration system for cleaning up recovered fluid, a primary pump, an accumulator, a first manifold for fluid injection, a second manifold for fluid recovery, and a return conduit from the second manifold to the filter.

Abstract: A holding structure for holding a device on a fuel tank can be manufactured by small man-hours, and is simple in construction and excellent in vibration isolating performance. The holding structure holds a device (11) inserted in a fuel tank (10) on the fuel tank (10). The holding structure includes a holding tube (19) formed integrally with the fuel tank (10) so as to surround an opening (18) formed in the fuel tank (10), an elastic boot (21) put on the holding tube (19) so as to be in close contact with the outer circumference (19a) of the holding tube (19) and the outer circumference (15a) of a part of the device (11), extending outside from the holding tube (19), and a fastening device (22, 23) for fastening the elastic boot (21) to the respective outer circumferences (19a, 15a) of the holding tube (19) and the device (11).

Abstract: A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The fluid pump also provides fluid outflow when the rotational direction of the input drive is reversed.

Abstract: This invention provides a low profile fuel tank assembly having an elongated fuel delivery module mounted horizontally within the fuel tank and independent from a flange which covers a sole fuel tank access hole. An integrated fuel pump and associated motor of the module dictates the length of the module. The motor and pump has a rotational axis preferably disposed substantially horizontal within the fuel tank. Because the fuel delivery module is supported by the fuel tank shell or bottom, independent of the flange, the access hole can be located anywhere on the fuel tank in order to simplify fuel tank ingress and minimize repair procedures. During assembly, the module is inserted into the fuel tank through the access hole, and is then placed and snap-locked preferably into a bracket structure permanently engaged to an inside surface of the fuel tank.

Abstract: A method and an apparatus, the apparatus including appropriate valves and conduits, for increasing throughput in pressurized fluid processing including storing in a storage chamber of the apparatus a quantity of fluid at a pressure higher than a pressure at which an operation is to take place, while a processing chamber is depressurized to allow reception of a new object; sealing the processing chamber; and allowing fluid stored in the storage chamber to pass to the processing chamber to re-pressurize the processing chamber before performing the operation. The fluid may be preheated in the storage chamber to further reduce processing times.

Abstract: A system for returning residual liquid remaining in a loading line to a liquid cargo container after loading or unloading of the cargo container. This system includes a liquid return line extending between the loading line and the cargo container. A pump is positioned to move liquid from the loading line, through the liquid return line, and into the cargo container. A vapor line communicates between a vapor space in the cargo container and the loading line. The system may include an optical liquid level sensor. The level sensor includes a light tube having two substantially straight sections joined by a substantially continuous curvature bend. The bend has a rounded cross-section and the light pipe is formed of a light conducting material. An optical emitter is positioned at the end of one of the straight sections of the pipe and an optical detector is positioned at the other straight section of the pipe. A micro-controller activates the optical emitter and monitors the optical sensor.

Abstract: A precompression control arrangement for the supply of fuel from a fuel pump arranged in a fuel tank to a fuel line and then to a fuel distributer of an internal combustion engine. A pressure-regulating valve is arranged in the fuel tank, which diverts fuel from the fuel line when the valve is opened and returns the fuel to the fuel tank. The pressure-regulating valve has first and second chambers, separated in a liquid-tight manner by a membrane which actuates a valve closing member. The first chamber has at least one inlet, connected to the fuel line by a first branch line, and at least one outlet, which leads into the fuel tank. The second chamber has a spring which biasses the valve closing member in the closing direction. The second chamber has a second inlet, which is connected to the fuel line by a second branch line which incorporates a switch such that different pressure levels can be adjusted in the second chamber.

Abstract: A tank which is primarily intended for spraying applications and mountable on an all terrain vehicle (“ATV”). The tank (10) includes a main tank section (11) which, in use, extends laterally of the ATV and at least one longitudinally extending arm 12. The pump assembly is located in a cavity (14) in the underside of the main tank section (11). A cover (15) can cover the cavity (14) to mount the pump assembly in place. The tank (10) can include a removable auxiliary tank (21).

Abstract: A method and an apparatus, the apparatus including appropriate valves and conduits, for increasing throughput in pressurized fluid processing including storing in a storage chamber of the apparatus a quantity of fluid at a pressure higher than a pressure at which an operation is to take place, while a processing chamber is depressurized to allow reception of a new object; sealing the processing chamber; and allowing fluid stored in the storage chamber to pass to the processing chamber to re-pressurize the processing chamber before performing the operation. The fluid may be preheated in the storage chamber to further reduce processing times.

Abstract: An evaporative emission control apparatus for a motor vehicle includes a fuel tank having a tank shell to store fuel therein, a canister disposed completely within the fuel tank to adsorb and temporarily store evaporative fuel generated in the fuel tank, and a bracket that is secured to the fuel tank to support the canister apart from the tank shell. The outer surface of the canister is set apart from the inner surface of the tank shell, so that the canister is less influenced by the environment temperature around the fuel tank, and so that the adsorption of the evaporative fuel is kept stable.

Abstract: A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The fluid pump also provides fluid outflow when the rotational direction of the input drive is reversed.

Abstract: The invention provides an apparatus for outputting compressed air in a compressor to a plurality of pneumatic tools at a plurality of pressures. The apparatus includes: an air tank storing compressed air compressed by the compressor at a high pressure; a pressure adjusting portion connected to said air tank and adjusting a pressure value of the compressed air in a region from the high pressure to zero; a pressure outputting portion connected to a secondary side of said pressure adjusting portion and outputting the adjusted compressed air to at least one of a first pneumatic tool driven at a first pressure and a second pneumatic tool driven at a second pressure. The first pressure is larger than the second pressure, and the adjusted compressed air is not output to the second pneumatic tool at the first pressure.

Abstract: A fitting structure for attaching a fuel pump in a fuel tank, which includes a gasket surrounding a pump insertion hole of the fuel tank. The gasket is collapsed by a presser ring through a flange portion of the fuel pump, thus enabling the gasket to provide an effective seal between the fuel pump and the fuel tank. A nut fastened onto a bolt is used to bring a second valley portion of the presser ring into close contact with a first mount portion of a fixed side ring that has been preliminarily welded to the fuel tank, thus securely fitting the fuel pump to the fuel tank. As compared with a conventional fitting structure using a bayonet or snap fit connection, wherein the fitting structure must be turned against the gasket to be fitted into a secure position, this new fitting structure presses the gasket into place, thus avoiding the turning motion and the resulting damage that may be caused to the gasket.

Abstract: An evaporation control apparatus is provided that reliably suppresses the emission of fuel components into the atmosphere. The evaporation control apparatus has a canister 2 and a control valve 20 that are configured as a unit to be disposed within the fuel tank 1 so that the connection path between the canister 2 and the control valve 20 is completely enclosed within the fuel tank 1. Therefore, fuel components are prevented from permeating the hoses and joints connecting the canister 2 and the control valve 20. In the unlikely event that fuel components should permeate the case body 20A of the control valve 20, emission of the fuel components into the atmosphere will be suppressed.

Abstract: A holding structure for holding a device on a fuel tank can be manufactured by small man-hours, and is simple in construction and excellent in vibration isolating performance. The holding structure holds a device (11) inserted in a fuel tank (10) on the fuel tank (10). The holding structure includes a holding tube (19) formed integrally with the fuel tank (10) so as to surround an opening (18) formed in the fuel tank (10), an elastic boot (21) put on the holding tube (19) so as to be in close contact with the outer circumference (19a) of the holding tube (19) and the outer circumference (15a) of a part of the device (11), extending outside from the holding tube (19), and a fastening device (22, 23) for fastening the elastic boot (21) to the respective outer circumferences (19a, 15a) of the holding tube (19) and the device (11).

Abstract: A template is provided for pump feet cups that is separately formed from the sump basin, positioned therein via sump basin flats to have a predetermined orientation with respect to the sump basin cover, and then attached to the sump basin to maintain a fixed position therein. A single template can be used with a variety of pump feet orientations by forming the template from a plurality of cups joined by a separable web. Foam or like material can be placed within the cups to receive the pump feet. Where the sump basin is formed from polyethylene material, the template can be molded from like material and then fixed to the lower interior surface of the sump basin by ultrasonic welding.

Abstract: A sewage ejector system includes a basin and top cover. The basin body includes a generally cylindrical wall, a closed bottom, and an open top. Several features assist in installation, handling and/or performance of the basin. An annular collar projecting from the outer surface of the wall is useful for inhibiting flotation of the basin. Diametrically opposed recesses formed in the outer wall surface facilitate handling of the basin during transport and installation. A raised annular edge at the top of the basin body protects outer edges of the top cover.

Abstract: A vehicle fuel system has an electronic control module received within a fuel tank to send data to and receive data from the electronic control unit (ECU) for the vehicle engine and other vehicle control systems, to provide an electronic control of the vehicle fuel system and to receive signals from one or more sensors mounted within the fuel tank which provide information about the operation of the fuel system. The fuel system integrates a plurality of components into the vehicle fuel tank to reduce the number of openings through the vehicle fuel tank and the number of external connections which must be made in assembly of the fuel system into a vehicle. By disposing a fuel vapor canister within the fuel tank, each vapor vent valve within the fuel tank can communicate completely within the tank with the vapor canister with a single outlet extending from the fuel tank to communicate fuel vapor from the canister with an intake manifold of the engine.

Abstract: A fuel tank assembly for a motorcycle and a method for assembly thereof, in which a fuel pump can reliably suck in fuel when a fuel level fluctuates in response to acceleration, deceleration or changing posture of the motorcycle, and when there is little fuel in the tank. The invention provides a cup disposed on the bottom of the fuel tank which may house a fuel pump and a fuel suction filter. Because the fuel suction filter is mounted within the cup, it is not necessary to pass the filter through a hole in the bottom of the tank during assembly. This allows the use of a large filter without forming a large hole in the tank, and further increases the fuel capacity of the tank. A peripheral edge of the tank opening hinders the flow of fuel from the cup to the tank during changes in motorcycle posture, which maintains the fuel suction filter's submergence in fuel.

Abstract: A pressure limiting valve for the fuel return line connected to a tank of a motor vehicle is positioned in a flange which connects the fuel return line to the tank. The pressure limiting valve closes an outlet opening which branches off from a fuel passage of the flange.

Abstract: A system for transporting a quantity of highly viscous material comprising a vacuum chamber, a blower for creating a vacuum in the vacuum chamber, and a plurality of material suction lines for suctioning the viscous material to the chamber. A progressive cavity pump mounted to the vacuum chamber provides a continuous delivery of the viscous material from the vacuum chamber to a desired location at atmospheric pressure while the vacuum chamber is in a vacuum state. The system is skid mounted for portability.

Abstract: A pool, spa, hot tub or the like having a basin capable of retaining water, a first pump for recirculating a portion of the water within the basin to inlet jets within the side walls of the basin and a second pump for recirculating water from the basin to additional inlet jets in the side walls of the basin. Both the first pump and the second pump are driven by a single double-shaft electric motor.

Abstract: A vapor canister and fuel tank assembly for a vehicle includes a fuel tank having an interior chamber and a tank opening communicating with the interior chamber. The vapor canister and fuel tank assembly also includes an insert disposed in the interior chamber and the tank opening and forming a vapor plenum chamber in the tank opening and a canister chamber therein. The vapor canister and fuel tank assembly includes a canister bed disposed in the canister chamber to absorb vapor fuel in the vapor plenum chamber. The vapor canister and fuel tank assembly further includes a coaxial line having one end for connection to an engine of the vehicle and another end connected to the vapor plenum chamber to allow liquid fuel to communicate with the interior chamber and vapor fuel to communicate with the vapor plenum chamber.

Abstract: An apparatus is provided for replacing the fluid employed in a vehicle component, and includes a bi-directional pump having first and second ports to which service, supply and drain lines are connected. The service line is connected to the first port and includes a free end adapted for receipt in the reservoir of the vehicle. The supply line is connected to the second port and includes a free end adapted for receipt in a replacement-fluid container. In addition the supply line includes a check valve that permits fluid flow in a direction toward the pump while preventing the flow of fluid in a direction away from the pump. The drain line is connected to the second port and includes a check valve that permits fluid flow in a direction away from the pump while preventing the flow of fluid in a direction toward the pump.

Abstract: A power transfer pump includes a rotary pump disposed within connected body sections comprising a top body, a main body with two ports and a cylindrical chamber to house a rotary assembly, a supporting body fitted with a connecting head, and a mounting body. The mounting body has a flexible ring, a bolt and forms a drive motor chamber with the supporting body to receive and clamp a power source that engages with the rotary assembly to activate the pump. The power transfer pump integrates into an oil removal station whereby by means of the rotary pump assembly, an oil sucking and discharging effect is created.