A pump includes a casing defining an interior volume. The pump casing includes at least one balancing plate that can be part of a wall of the pump casing with each balancing plate including a protruding portion having two recesses. Each recess is configured to accept one end of a fluid driver. The balancing plate aligns the fluid displacement members with respect to each other such that the fluid displacement members can pump the fluid when rotated. The balancing plates can include cooling grooves connecting the respective recesses. The cooling grooves ensure that some of the liquid being transferred in the internal volume is directed to bearings disposed in the recesses as the fluid drivers rotate.

An electric oil pump apparatus includes a housing, an electric motor, an oil pump, a shaft, a first bearing, and a second bearing. The electric motor is housed in the housing. The oil pump is provided in the housing and positioned on a first side in an axial direction with respect to the electric motor so as to be adjacent to the electric motor, and includes a pump rotational element rotatable coaxially with a motor rotor. The motor rotor and the pump rotational element are fitted to the shaft to be rotatable together with the shaft. The first bearing is disposed on the first side with respect to the pump rotational element, and supports the shaft while allowing rotation relative to the housing. The second bearing is disposed on a second side with respect to the pump rotational element, and supports the shaft while allowing rotation relative to the housing.

A turbomachine comprises a rotating spool comprising a drive shaft delivering mechanical power. The turbomachine comprises an electromagnetic pump mechanically decoupled from the drive shaft. The electromagnetic pump comprises at least one stator delimiting an annular internal volume in which is present a rotor able to drive a fluid, a plurality of magnets distributed annularly on the rotor and at least one plurality of coils distributed annularly inside the rotor. The coils of the plurality of coils face magnets along an axial direction.

A multi-pump apparatus can include a pump unit including two or more motorized pumps, wherein each of the two or more motorized pumps can include a stator and a stator exit. The multi-pump apparatus can further include a plurality of stator exits including each stator exit of each stator of the two or more motorized pumps, and a group of adjustable hoses, wherein the two or more motorized pumps of the pump unit are operable to inject a dense fluid from the plurality of stator exits through the group of adjustable hoses.

Gerotor pump comprising an inner gerotor and an outer gerotor and an electric motor in a pump housing, and the outer gerotor is formed integrally with the rotor of the electric motor, wherein magnets are integrated into the outer gerotor, and the rotor is rotatably mounted on a shaft that is fixed on one side to a housing or a housing base of the pump housing.

Positive displacement machine such as a compressor, expander, pump or the like, for displacing a gaseous or liquid medium, the machine containing an element with at least one inlet and at least one outlet for the medium and at least two cooperating driven moving parts. The mutual periodic movement of the moving parts displaces the medium from the inlet to the outlet. Each of the at least two driven cooperating moving parts is provided with its own individual drive. The element is provided with a kinematic synchronisation coupling between the at least two cooperating moving parts for the mutual kinematic synchronisation of their movements.

A transmission actuator for a vehicle includes a housing, a first rocker for engaging a toothed wheel, a second rocker for rotating the first rocker to engage the toothed wheel, an engagement rod for rotating the second rocker, a solenoid arranged to displace the engagement rod, and a solenoid control circuit. The solenoid includes an iron core, a wire coil wrapped around the iron core, and a ferromagnetic plunger. The plunger is arranged to linearly displace in a first direction when a first directional current is applied to the wire coil, and linearly displace in a second direction when a second directional current is applied to the wire coil. The solenoid control circuit is arranged supply the first directional current when energized by a power source, and supply a decaying alternating current that includes the first directional current and the second directional current when the solenoid control circuit is de-energized.

A gerotor pump includes a pump head including a configuration of gerotors for pumping in operation a fluid medium from an input port arrangement to an output port arrangement, and a motor arrangement for providing mechanical power in operation for actuating the configuration of gerotors. The configuration of gerotors includes an outer gerotor and an inner gerotor that are operable to cooperate to entrap and propel the fluid medium from the input port arrangement to the output port arrangement. At least one of the outer gerotor and the inner gerotor are fabricated from a flexible material and/or are internally structured so as to exhibit a flexible peripheral exterior surface in operation. Moreover, the outer gerotor and the inner gerotor are loaded and/or are assembled together in a preloaded state, within the pump head, so that a gap formed between the gerotors whereat they mutually cooperate for entrapping and propelling the fluid medium is maintained in a flexibly compressed state when the pump is in operation. Optionally, at least one of the outer and inner gerotors is fabricated as a hybrid component including regions of a flexible material therein, and regions of an inflexible material therein. More optionally, the flexible material has a Young's modulus in a range of 1 MegaPascal (MPa) to 5 GigaPascals (GPa), and the inflexible material has a Young's modulus in a range of 2 GPa to 420 GPa.

This pump comprises: a housing; a stator which is disposed in the housing and comprises a coil; and pump gears disposed so as to correspond to the stator, wherein the pump gears comprise an outer gear and an inner gear, which is disposed inside the outer gear, and the outer gear is formed of magnetic material.

A fluid pumping system for a vehicle having an internal combustion engine comprises a housing, an electric motor, a rotatable first input adapted to be driven by the internal combustion engine, a rotatable second input driven by the electric motor, and a pump. The pump includes a drum selectively rotated about a drum axis of rotation by one of the first input and the second input, and a pump rotor selectively rotated by the other of the first input and the second input. The drum includes a cam ring having a cavity in receipt of the pump rotor. The drum includes a first fluid inlet port and a second fluid inlet port on opposite sides of the drum such that fluid entering the cavity through the first and second fluid ports flows axially in a direction parallel to the drum axis of rotation. The drum includes a radially extending outlet port such that pumped fluid flows radially out of the cavity. The housing contains the electric motor and the pump.