Abstract: A pump system includes a pressure compensator and a speed compensator for controlling the displacement of a variable displacement pump having an inlet and an outlet. The variable displacement pump is driven by a drive shaft powered by an electric motor. The pressure compensator adjusts the displacement of the variable displacement pump based on a pump pressure at the pump outlet. The speed compensator adjusts a maximum magnitude of the displacement of the variable displacement pump based on a speed of the electric motor.

Abstract: A pump system includes a pressure compensator and a speed compensator for controlling the displacement of a variable displacement pump having an inlet and an outlet. The variable displacement pump is driven by a drive shaft powered by an electric motor. The pressure compensator adjusts the displacement of the variable displacement pump based on a pump pressure at the pump outlet. The speed compensator adjusts a maximum magnitude of the displacement of the variable displacement pump based on a speed of the electric motor.

Abstract: A fluid device includes a housing defining a fluid inlet and a fluid outlet. A variable displacement assembly is in fluid communication with the fluid inlet and the fluid outlet. The variable displacement assembly includes a rotor assembly, a flexible ring, and a plurality of ring supports. The rotor assembly includes a rotor having a plurality of reciprocating members. The flexible ring is disposed about the rotor assembly. The flexible ring includes an inner surface, which is adapted for engagement with the plurality of reciprocating members, and an outer surface. The plurality of ring supports is disposed about the flexible ring. Each of the plurality of ring supports includes a support portion and a pivot portion about which the ring support selectively pivots. The support portion is adapted for engagement with the outer surface of the flexible ring.

Abstract: Example fluid circuits (e.g., within aircrafts) include first and second pump assemblies. The first pump assembly has an electric motor and a first fluid pump. The first fluid pump is coupled to the electric motor and has a case drain port that is in fluid communication with a case drain region of the first fluid pump. The second pump assembly is powered by hydraulic pressure from the first fluid outlet of the first fluid pump and functions to augment flow through the case drain region of the first fluid pump.

Abstract: Example fluid circuits (e.g., within aircrafts) include first and second pump assemblies. The first pump assembly has an electric motor and a first fluid pump. The first fluid pump is coupled to the electric motor and has a case drain port that is in fluid communication with a case drain region of the first fluid pump. The second pump assembly is powered by hydraulic pressure from the first fluid outlet of the first fluid pump and functions to augment flow through the case drain region of the first fluid pump.

Abstract: A bleed valve assembly includes a control assembly having a fluid inlet and a fluid outlet. The control assembly defines a fluid passageway in fluid communication with the fluid inlet and the fluid outlet. An electromechanical valve is engaged with the control assembly. The electromechanical valve provides selective fluid communication between the passageway and the fluid outlet. A fluid sensor is in fluid communication with the passageway. The fluid sensor includes a sensing tip and is in electrical communication with the electromechanical valve. A valve is disposed in the passageway of the control assembly. The valve prevents fluid communication of non-gaseous fluid between the fluid inlet and the fluid outlet.

Abstract: A fluid device includes a housing defining a fluid inlet and a fluid outlet. A variable displacement assembly is in fluid communication with the fluid inlet and the fluid outlet. The variable displacement assembly includes a rotor assembly, a flexible ring, and a plurality of ring supports. The rotor assembly includes a rotor having a plurality of reciprocating members. The flexible ring is disposed about the rotor assembly. The flexible ring includes an inner surface, which is adapted for engagement with the plurality of reciprocating members, and an outer surface. The plurality of ring supports is disposed about the flexible ring. Each of the plurality of ring supports includes a support portion and a pivot portion about which the ring support selectively pivots. The support portion is adapted for engagement with the outer surface of the flexible ring.

Abstract: A bleed valve assembly includes a control assembly having a fluid inlet and a fluid outlet. The control assembly defines a fluid passageway in fluid communication with the fluid inlet and the fluid outlet. An electromechanical valve is engaged with the control assembly. The electromechanical valve provides selective fluid communication between the passageway and the fluid outlet. A fluid sensor is in fluid communication with the passageway. The fluid sensor includes a sensing tip and is in electrical communication with the electromechanical valve. A valve is disposed in the passageway of the control assembly. The valve prevents fluid communication of non-gaseous fluid between the fluid inlet and the fluid outlet.