A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

A pilot-operated relief valve assembly can include a relief valve, and a pressure detection assembly. A valve lift factor or indicator of relief flow can be determined based on pressure measurements gathered by the pressure detection assembly.

A shaft-hub connection, in particular for a gearbox of a motor vehicle, comprising a shaft, at least one hub which is connected to the shaft, wherein the hub is of tubular design and a shaft end of the shaft engages on a first hub end of the hub, and a closure element is arranged on a second hub end of the hub. A cavity is formed between the closure element and the shaft end of the shaft. The closure element is designed in such a manner that gaseous medium can escape via the closure element in the event of a positive pressure in the cavity.

A shaft-hub connection, in particular for a gearbox of a motor vehicle, comprising a shaft, at least one hub which is connected to the shaft, wherein the hub is of tubular design and a shaft end of the shaft engages on a first hub end of the hub, and a closure element is arranged on a second hub end of the hub. A cavity is formed between the closure element and the shaft end of the shaft. The closure element is designed in such a manner that gaseous medium can escape via the closure element in the event of a positive pressure in the cavity.

A pressure relief valve includes a valve body, a valve seat, a bonnet, and a valve actuator. The valve body has an open top, a bottom, a back and a front with a cavity formed within. A cap with a first vent is removably attached to the open top. An inlet opening and a discharge opening are in fluid communication with the cavity is formed at the bottom and front of the valve body respectively. The valve seat is circumferentially disposed around the inlet opening within the cavity. A recessed area is formed on a surface on the distal end of the valve seat that is configured to receive a lip seal. The bonnet has a closed top end with a second vent. The valve actuator is coupled within the bonnet to a set-pressure enabling means that is not a mechanical spring.

A pressure relief valve includes a valve body, a valve seat, a bonnet, and a valve actuator. The valve body has an open top, a bottom, a back and a front with a cavity formed within. A cap with a first vent is removably attached to the open top. An inlet opening and a discharge opening are in fluid communication with the cavity is formed at the bottom and front of the valve body respectively. The valve seat is circumferentially disposed around the inlet opening within the cavity. A recessed area is formed on a surface on the distal end of the valve seat that is configured to receive a lip seal. The bonnet has a closed top end with a second vent. The valve actuator is coupled within the bonnet to a set-pressure enabling means that is not a mechanical spring.

A fire escape chamber includes a hermetically sealable outer cage with outer side wall elements, with an outer floor element and with an outer ceiling element. Fire protection insulation layers are provided on the inner sides of the outer elements with some fastened by pin elements, which protrude from the outer side wall elements and from the outer ceiling element into the respective fire protection insulation layers. An inner cage has inner side wall elements, an inner ceiling element and an inner floor element. The inner floor element is mounted in a supporting manner on the fire protection insulation layer of the outer floor element. The inner side wall elements and the inner ceiling element are formed by a plurality of support structure elements, on the inner sides of which panels are, in turn, fastened. The support structure elements are located at spaced locations from the pin elements.

A fire escape chamber includes a hermetically sealable outer cage with outer side wall elements, with an outer floor element and with an outer ceiling element. Fire protection insulation layers are provided on the inner sides of the outer elements with some fastened by pin elements, which protrude from the outer side wall elements and from the outer ceiling element into the respective fire protection insulation layers. An inner cage has inner side wall elements, an inner ceiling element and an inner floor element. The inner floor element is mounted in a supporting manner on the fire protection insulation layer of the outer floor element. The inner side wall elements and the inner ceiling element are formed by a plurality of support structure elements, on the inner sides of which panels are, in turn, fastened. The support structure elements are located at spaced locations from the pin elements.