A fuel system includes a fuel pump and a jet pump assembly. The jet pump assembly includes a first fuel passage defined by a first tube. The jet pump assembly also includes a second fuel passage which receives pressurized fuel from the fuel pump, the second fuel passage having a primary orifice centered about and extending along a primary orifice axis such that the primary orifice axis is directed into the first fuel passage and such that the primary orifice introduces a first flow of fuel into the first fuel passage. The second fuel passage also has a secondary orifice centered about and extending along a secondary orifice axis which is not coincident with the primary orifice axis and which is directed at an inner surface of the first tube and the secondary orifice introduces a second flow of fuel into the first fuel passage which impinges the inner surface.

A fluid-conveying device for conveying a fluid from a tank includes: a first fluid-conveying pump; a swirl pot; and a second fluid-conveying pump having a drive region and a conveying region coupled to the drive region. The fluid is conveyable from the swirl pot by the first fluid-conveying pump, and the conveying region is configured and arranged so as to be drivable by the drive region.

There is provided a center fuel tank assembly for an aircraft. The assembly includes a center fuel tank disposed in a central part of the aircraft. The assembly further includes one or more fuel barrier members partitioning the center fuel tank into two or more separate volume sections comprising two or more separate sub-tanks arranged in a fore-to-aft alignment to form a partitioned center fuel tank. The assembly further includes a fuel flow control assembly coupled to each of the two or more separate sub-tanks, each fuel flow control assembly operating independently. A sequential fuel burn of fuel in the two or more separate sub-tanks is made in a fore-to-aft sequence while the aircraft is in flight, to assist in shifting aftward a center of gravity (CG) of the aircraft, to reduce aircraft drag.

Methods and systems are described for a fuel system in an engine comprising two lift pumps. One example method comprises deactivating one of a first lift pump and a second lift pump if fuel fill level in a common reservoir decreases below a threshold fill level, wherein the first lift pump and the second lift pump are positioned in the common reservoir. By deactivating one of the two lift pumps, the two lift pumps may be protected from degradation due to fuel starvation.

A fuel system for a motor vehicle includes a fuel pump having a first pump outlet connectable to an engine fuel inlet and a second pump outlet, a fuel pump module including an internal volume, a fuel pump module outlet is arranged in the internal volume fluidically connected to the second pump outlet, and a fuel valve is fluidically connected to the second pump outlet. The fuel valve is operable to fluidically isolate the fuel pump from the fuel pump module when fuel in the internal volume reaches a selected fuel level.

A system for housing a fuel pump and a fuel filter including a stem body having a first surface and an opposing second surface. A first, third, and fifth orifice may be located in the first surface. A second, fourth and sixth orifice may be located in the second surface. The second orifice may carry the fuel filter, and be in fluid communication with the first orifice. The fourth orifice may interface with an inlet to the fuel pump, and be in fluid communication with the third orifice. The sixth orifice may be in fluid communication with the fifth orifice. A first channel may be adapted to place the first orifice in fluid communication with the third orifice. A second channel may be adapted to place the fifth orifice, located at a first end of the second channel, in fluid communication with a second end of the second channel.

A fuel storage assembly for a vehicle includes a fuel tank defining a fuel chamber, a fuel pump module and a vapor pressure detection system. The fuel pump module includes a flange engaged to the fuel tank and a fuel pump assembly supported by the flange and disposed in the fuel chamber. The vapor pressure detection system includes a vapor pressure sensor attached to the flange, a vapor pressure inlet device disposed in the fuel chamber, and a conduit communicating between the vapor pressure inlet device and the vapor pressure sensor.

The disclosure relates to an assembly for a vehicle, in particular for a hybrid electric vehicle. The assembly includes at least one fuel tank having the form of a saddle tank. The assembly further includes at least one traction battery that is arranged outside the fuel tank and is thermally connected to the fuel tank, and at least one fuel pump arranged in the fuel tank. The fuel pump can convey a fuel from within the fuel tank to an internal-combustion engine of the hybrid electric vehicle. To provide a cooling system for the traction battery, the traction battery can be thermally connected to an active tank portion of the fuel tank, in which the fuel pump is arranged. The traction battery can be connected to the active tank portion via a bridge portion of the fuel tank, which is connected in a communicating manner to a passive tank portion of the fuel tank. Fuel in the passive tank portion can be conveyed into the active tank portion.

A vehicle fuel pump module includes a jet pump assembly and feed tube that delivers fuel to the assembly. The module includes a jet pump choke that is disposed in the jet pump assembly and provides a reduction of pressure of fluid within the jet pump assembly. The jet pump choke includes include a choke housing that defines a passageway that extends between a fluid inlet and outlet, and a slot that is formed in a surface of the passageway. A ball is fixed within and obstructs the passageway, and abuts the slot. A fluid path defined between the ball and surfaces of the slot provides fluid communication between the fluid inlet and outlet of the choke housing.

A vehicle fuel pump module includes a jet pump assembly and feed tube that delivers fuel to the assembly. The module includes a first choke and a second choke. The first choke is disposed in the feed tube and provides filtering of the fluid and a reduction of pressure within the feed tube. The second choke is disposed in the jet pump assembly and provides a reduction of pressure of fluid within the jet pump assembly. The first and second chokes each include a choke housing that defines a passageway that extends between a fluid inlet and outlet, and a slot that is formed in a surface of the passageway. A ball is fixed within and obstructs the passageway, and abuts the slot. A fluid path defined between the ball and surfaces of the slot provides fluid communication between the fluid inlet and outlet of the choke housing.