Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a pump, a pump manifold, and a flexible hose coupled between the pump and the pump manifold. The flexible hose includes a first end coupled to the pump and a second end coupled to the pump manifold. The first end of the flexible hose includes a first end fitting coupled to the pump, and the first end fitting is oriented at an angle relative to a horizontal plane. The second end of the flexible hose includes a second end fitting coupled to the pump manifold, and the second end fitting is oriented vertically and perpendicularly to the horizontal plane.

A fluid nozzle includes an inlet housing configured for connection with a tanker aircraft boom, an outlet housing connected with the inlet and configured for connection with a receiving aircraft receptacle, and/or a sensor configured for determining at least one of a ready status, a contact status, and an articulation angle. The sensor may include a ready sensor, a contact sensor, and/or an articulation angle sensor. A method of connecting a fluid nozzle with a receptacle may include providing a fluid nozzle, providing a receptacle, moving the fluid nozzle toward the receptacle, sensing contact between the fluid nozzle and the receptacle via a contact sensor, and/or sensing, via a ready sensor, that the receptacle is latched with the fluid nozzle.

An apparatus for injecting an additive in a pressurized air conditioning or refrigeration system having a service valve includes a cartridge with a piston, an adapter configured to be connected to the service valve, and a bending unit interposed between the adapter and the cartridge. The bending unit includes a flexible capillary tube having a first end fitting adapted to be connected to the cartridge. The flexible capillary tube has a second end fitting adapted to be connected to the adapter. The flexible capillary tube is adapted to be bent at least at 90° without kinking.

A manifold has a fluid inlet, a plurality of fluid outlets, a movable conduit member, a first drive mechanism, and a control module in which the conduit member has a fluid path therethrough, in which the fluid inlet is fluidly connected to a first end of the fluid path, in which the conduit member is mounted for movement on a support member, and in which the first drive mechanism is configured to move the conduit member on the support member to selectively associate a second end of the fluid path with one of the plurality of fluid outlets according to commands issued by the control module.

Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a pump, a pump manifold, and a flexible hose coupled between the pump and the pump manifold. The flexible hose includes a first end coupled to the pump and a second end coupled to the pump manifold. The first end of the flexible hose includes a first end fitting coupled to the pump, and the first end fitting is oriented at an angle relative to a horizontal plane. The second end of the flexible hose includes a second end fitting coupled to the pump manifold, and the second end fitting is oriented vertically and perpendicularly to the horizontal plane.

An object is to propose a fluid handling device for liquid hydrogen that prevents evaporation of liquid hydrogen, and moreover affords excellent heat insulation without liquefying oxygen in the vicinity. In a fluid handling device for liquid hydrogen, piping sections (1) have a heat insulation structure, a swivel joint section (2) is configured with helium gas sealed into a boundary relative-rotation section (6) between an outer ring section (3) and an inner ring section (4) with a bearing section (5) interposed, and moreover, between an outside-air-contacting wall section (7) that is in contact with the outside air and a liquid-hydrogen-contacting wall section (8) that is in contact with liquid hydrogen, a vacuum section (9) extends in the axial direction and moreover a heat-conducting extended path section (10) is provided with one end connected to the outside-air-contacting wall section (7) and the other end connected to the liquid-hydrogen-contacting wall section (8), extending the heat conduction distance between the outside-air-contacting wall section (7) and the liquid-hydrogen-contacting wall section (8), and reducing heat conductivity between the outside-air-contacting wall section (7) and the liquid-hydrogen-contacting wall section (8).

Disclosed is a valve apparatus of a urea tank for a vehicle, the valve apparatus configured such that a urea solution injection pipe is flexibly bent and has a float so that a urea injection valve provided at the urea solution injection pipe is prevented from being immersed in the urea solution in the urea tank. Thus, the urea solution can be prevented from being damaged upon freezing in a winter season. Further, when a urea solution is injected, the urea solution injection pipe is straightened by flow pressure of the urea solution such that the float is forced to be immersed in the urea solution in the urea tank, and accordingly the urea solution injection valve is immersed therein. Thus, the urea solution can be efficiently injected into the urea tank.

Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a platform, a pump manifold mounted to the platform, and a pair of rails mounted to the platform. The fluid injection system includes a trolley disposed between the pair of rails and above the pump manifold. The trolley is movable along the pair of rails. The fluid injection system includes an articulation arm device mounted to the trolley. The articulation arm device includes one or more pivot joints coupled between two or more arms, and a connection device coupled to an end arm of the two or more arms.

A fluid nozzle includes an inlet housing configured for connection with a tanker aircraft boom, an outlet housing connected with the inlet and configured for connection with a receiving aircraft receptacle, and/or a sensor configured for determining at least one of a ready status, a contact status, and an articulation angle. The sensor may include a ready sensor, a contact sensor, and/or an articulation angle sensor. A method of connecting a fluid nozzle with a receptacle may include providing a fluid nozzle, providing a receptacle, moving the fluid nozzle toward the receptacle, sensing contact between the fluid nozzle and the receptacle via a contact sensor, and/or sensing, via a ready sensor, that the receptacle is latched with the fluid nozzle.

An apparatus for injecting an additive in a pressurized air conditioning or refrigeration system having a service valve includes a cartridge with a piston, an adapter configured to be connected to the service valve, and a bending unit interposed between the adapter and the cartridge. The bending unit includes a flexible capillary tube having a first end fitting adapted to be connected to the cartridge. The flexible capillary tube has a second end fitting adapted to be connected to the adapter. The flexible capillary tube is adapted to be bent at least at 90 without kinking.