A non-pressure valve is provided, and includes a tubular housing having an inlet and an outlet, and a flow-through support mount disposed in the outlet. The non-pressure valve also includes a poppet slideably coupled with the flow-through support mount and extending towards the inlet, and an outlet fitting extending through the flow-through support mount and the first poppet, the outlet fitting forming a slide guide for first poppet. The non-pressure valve also includes a sliding bell disposed around a portion of the first poppet and configured to slide independently of the first poppet. The non-pressure valve functions to divert a portion of the fuel flow through a hose to the remote fuel vent.

The present invention relates to a female cartridge coupling of the type suitable for being inserted into a support block, or manifold, which is connectable to a pressurized oil circuit on board the machine.

The female cartridge coupling in accordance with the present invention is characterized in that although it is configured to be inserted into a support block, it is suitable for being connected to Standard ISO 16028-compliant flush-face male couplings.

The cartridge in accordance with the present invention further comprises a system for mechanically locking the decompression valve which allows the connection of a male coupling.

The present invention relates to a female cartridge coupling of the type suitable for being inserted into a support block, or manifold, which is connectable to a pressurized oil circuit on board the machine.

The female cartridge coupling in accordance with the present invention is characterized in that although it is configured to be inserted into a support block, it is suitable for being connected to Standard ISO 16028-compliant flush-face male couplings.

The cartridge in accordance with the present invention further comprises a system for mechanically locking the decompression valve which allows the connection of a male coupling.

A coaxial coupling 10 includes a female coupling half 50 and a male coupling half 130. The coupling 10 is used in a hydraulic circuit 100 that includes a multistage hydraulic pump 101 and a hydraulic machine 102. The coupling is used in the circuit 100 to connect components when the pump is running. The coupling halves have a disconnected configuration (FIG. 1), a connection initiation configuration (FIG. 2), and a fully connected configuration (FIG. 3). Coupling half 50 includes a manually actuated restrictor 1 that signals the pump 101 to move to a low flow condition independently of load demand from the machine 102 in the connection initiation configuration. This reduces the forces required to move the coupling halves from the connection initiation configuration to the fully connected configuration.

A coaxial coupling 10 includes a female coupling half 50 and a male coupling half 130. The coupling 10 is used in a hydraulic circuit 100 that includes a multistage hydraulic pump 101 and a hydraulic machine 102. The coupling is used in the circuit 100 to connect components when the pump is running. The coupling halves have a disconnected configuration (FIG. 1), a connection initiation configuration (FIG. 2), and a fully connected configuration (FIG. 3). Coupling half 50 includes a manually actuated restrictor 1 that signals the pump 101 to move to a low flow condition independently of load demand from the machine 102 in the connection initiation configuration. This reduces the forces required to move the coupling halves from the connection initiation configuration to the fully connected configuration.

The quick coupling for fluid under pressure, comprising a hollow valve body, an obturator stem slidable along an axis of the valve body in contrast and by the action of elastic means configured and arranged to automatically arrange said obturator stem in a closing position of the valve body, and hydraulic sealing means between the valve body and a cylindrical terminal of the obturator stem, the hydraulic sealing means comprising at least one hollow plain bearing for reducing friction having an internal cylindrical surface mateable with the terminal of the obturator stem, and a plurality of elastic elements independent from one another configured and arranged to strain the bearing at a radial compression force for the uniform hydraulic seal against the terminal, the elastic elements being distributed at least mainly along the extension of the bearing in the direction of the axis.

The quick coupling for fluid under pressure, comprising a hollow valve body, an obturator stem slidable along an axis of the valve body in contrast and by the action of elastic means configured and arranged to automatically arrange said obturator stem in a closing position of the valve body, and hydraulic sealing means between the valve body and a cylindrical terminal of the obturator stem, the hydraulic sealing means comprising at least one hollow plain bearing for reducing friction having an internal cylindrical surface mateable with the terminal of the obturator stem, and a plurality of elastic elements independent from one another configured and arranged to strain the bearing at a radial compression force for the uniform hydraulic seal against the terminal, the elastic elements being distributed at least mainly along the extension of the bearing in the direction of the axis.

A coupling arrangement for a hydraulic device, in particular for a brake hose of a hydraulic brake of a vehicle. The coupling arrangement includes first and second coupling components, and the first and second coupling components can be transferred from an uncoupled state into a coupled state. The first coupling component has a hydraulic chamber which is prefilled with a first hydraulic liquid, and the second coupling component has a hydraulic cylinder which is prefilled with a second hydraulic liquid. The hydraulic chamber and the hydraulic cylinder are fluidically connected to one another in the coupled, a first flow opening is incorporated in the hydraulic chamber, and the first coupling component has a first sealing device which closes the first flow opening in a flow-tight manner in the uncoupled state and frees it in the coupled state.

A coupling arrangement for a hydraulic device, in particular for a brake hose of a hydraulic brake of a vehicle. The coupling arrangement includes first and second coupling components, and the first and second coupling components can be transferred from an uncoupled state into a coupled state. The first coupling component has a hydraulic chamber which is prefilled with a first hydraulic liquid, and the second coupling component has a hydraulic cylinder which is prefilled with a second hydraulic liquid. The hydraulic chamber and the hydraulic cylinder are fluidically connected to one another in the coupled, a first flow opening is incorporated in the hydraulic chamber, and the first coupling component has a first sealing device which closes the first flow opening in a flow-tight manner in the uncoupled state and frees it in the coupled state.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a sterile connection for drug delivery. In some embodiments, the fluid coupling devices can be implemented as multi-use, sterile fluid coupling devices that are configured to reduce the likelihood of fluid spillage when being disconnected.