A system includes sensors for monitoring pressure, flow, pump speed, temperature, and/or other signals at the output of a main hydraulic pump, and a processing system executes one or more methods for identification of hydraulic system events, from the signals, corresponding to state changes and performance of the system and/or its subcomponents. Event identification is performed with classification and/or other machine learning algorithms, with generation of novel training data sets. The sensor(s) can also be used to determine power consumption information about the system and/or its subcomponents. The system processes event-associated outputs for execution of actions for improving system performance, along with other downstream applications.

A volumetric flow meter, including a casing (10) fitted into a duct (C; 51, 62, 63) and including a base body (11) and a cap (13) cooperating to define a housing chamber (15), the housing chamber (15) being on opposite sides delimited by a base plane (11c) formed in the base body (11) and by a cap plane (13d) formed in the cap (13). Through the cap (13) there is formed an inlet passage (13e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). Through a bottom (11d) of the base body (11) there is an outlet passage (11e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). The flow meter has rotors (17, 18) mounted rotatably within the housing chamber (15), a permanent magnet (19) arranged on board one of the rotors (17), and a magnetic sensor (20).

A volumetric flow meter, including a casing (10) fitted into a duct (C; 51, 62, 63) and including a base body (11) and a cap (13) cooperating to define a housing chamber (15), the housing chamber (15) being on opposite sides delimited by a base plane (11c) formed in the base body (11) and by a cap plane (13d) formed in the cap (13). Through the cap (13) there is formed an inlet passage (13e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). Through a bottom (11d) of the base body (11) there is an outlet passage (11e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). The flow meter has rotors (17, 18) mounted rotatably within the housing chamber (15), a permanent magnet (19) arranged on board one of the rotors (17), and a magnetic sensor (20).

A flowmeter system that includes a flowmeter body defining a central bore. A plurality of flanges couple to the flowmeter body. The flowmeter body and the plurality of flanges form a one-piece structure without welded joints. A rotor within the central bore of the flowmeter body. A first vane within the central bore of the flowmeter body. The first vane couples to and supports the rotor within the flowmeter body. The flowmeter body, the flanges, the rotor, and the first vane comprise additive structures.

A flowmeter system that includes a flowmeter body defining a central bore. A plurality of flanges couple to the flowmeter body. The flowmeter body and the plurality of flanges form a one-piece structure without welded joints. A rotor within the central bore of the flowmeter body. A first vane within the central bore of the flowmeter body. The first vane couples to and supports the rotor within the flowmeter body. The flowmeter body, the flanges, the rotor, and the first vane comprise additive structures.

A turbine wheel used in a turbine flow meter includes a hub configured to be freely rotatably fixed in position inside a fluid pipe section. A first cylindrical rim is centered about the hub and the longitudinal axis and spaced a distance apart from the hub. A first vane set extends outwardly from the hub to the first cylindrical rim, wherein a root of each vane of the first vane set is attached to the hub and a tip of each vane of the first vane set is attached to the first cylindrical rim. The first vane set may consist of one or two individual vanes. An external vane set may extend outwardly from the first cylindrical rim, wherein a root of each vane is attached to the first cylindrical rim and a tip of each vane is not attached to any cylindrical rim.

A turbine wheel used in a turbine flow meter includes a hub configured to be freely rotatably fixed in position inside a fluid pipe section. A first cylindrical rim is centered about the hub and the longitudinal axis and spaced a distance apart from the hub. A first vane set extends outwardly from the hub to the first cylindrical rim, wherein a root of each vane of the first vane set is attached to the hub and a tip of each vane of the first vane set is attached to the first cylindrical rim. The first vane set may consist of one or two individual vanes. An external vane set may extend outwardly from the first cylindrical rim, wherein a root of each vane is attached to the first cylindrical rim and a tip of each vane is not attached to any cylindrical rim.

A fire truck pump flow prediction system includes a pump, an inlet pipe connected to the pump, a discharge pipe connected to the pump, an intake pressure sensor connected to the inlet pipe, a discharge pressure sensor connected to the discharge pipe, a rotational sensor associated with the pump and a central processor connected to the intake pressure sensor, the discharge pressure sensor and the rotational sensor. The intake pressure sensor is configured to detect fire suppressant inlet pressure and the discharge pressure sensor is configured to detect fire suppressant discharge pressure. The rotational sensor configured to detect a rotational speed of the pump. The central processor configured to determine a flow through the pump and into the discharge pipe based on the inlet pressure, the discharge pressure and the rotational speed.

A dosing device for dispensing a predetermined amount of liquid, in particular a predetermined amount of water, has a housing with a liquid inlet, a liquid outlet, and a flow channel therebetween. A valve element in the flow path can be opened and closed. A measuring device measures the flow rate through the flow channel in the direction of the liquid outlet. A controller has an operating unit or is coupled to an operating unit for signal transmission. The dosing device is actuatable by the operating unit. The controller is further coupled in terms of control technology to the valve element and to the measuring device, the controller holding the valve element in an open position or moving it to an open position when the dosing device is actuated.

A hinge assembly and a method of additively manufacturing the same are provided. The hinge assembly includes a hub defining a body and a first mounting arm and a second mounting arm each projecting from the body. The first mounting arm and the second mounting arm are spaced from one another and define a hinge axis. The hinge assembly also includes a rotatable member or vane rotatably coupled with the hub and positioned between the first mounting arm and the second mounting arm. The rotatable member defines a vane hinge member or hinge member having a first nesting feature shaped complementary to a portion the first mounting arm and a second nesting feature shaped complementary to a portion of the second mounting arm of the hub to nest the hinge member between the first mounting arm and the second mounting arm. The hub and the rotatable member are simultaneously additively manufactured as distinct, but inseparable monolithic components.