Abstract: A disconnect mechanism is provided which, upon a suitable trigger event, such as excess temperature causes a camming element 40 having a tapered head 52 to move under the urging of a compression spring 60 such that the tapered head 52 becomes trapped between a rotating element 32 and a support 42. This gives rise to frictional inter-engagement which prevents further rotation of the rotating element 32 and thereby locks the rotating machine against further rotation. This is turn causes the shear region to fail thereby drivingly disconnecting the machine from its prime mover.

Abstract: A drive disconnect device is provided in which a drive transfer element (12) is axially movable with respect to input and output shafts (2, 14) so as to selectively disconnect them. A collar (50) is disposed in spaced apart configuration around the drive transfer element so that they do not touch except when the disconnect device is operated to disconnect the drive. When the disconnect operation is initiated, force is provided from a resilient element (56) to move the drive transfer element.

Abstract: A drive disconnect device is provided in which a drive transfer element (12) is axially movable with respect to input and output shafts (2, 14) so as to selectively disconnect them. A collar (50) is disposed in spaced apart configuration around the drive transfer element so that they do not touch except when the disconnect device is operated to disconnect the drive. When the disconnect operation is initiated, force is provided from a resilient element (56) to move the drive transfer element.

Abstract: A drive disconnect mechanism is provided where a drive transfer element 12 can be moved to a disconnect position by a hydraulic actuator which itself is controlled by an electrically operated valve.

Abstract: A pump system is provided where low pressure (4) and high pressure (6) pumps are coaxially mounted to receive motive power from a shared drive (300). The drive shafts are arranged such that one extends within a void in the other and both have shear regions such that, in the event of torque overload, either shaft can shear so as to disconnect the drive to it's associated pump while the other pump and shaft can continue to work.

Abstract: A deaerator is provided in which the oil to be deaerated is supplied to first and second chambers and, respectively, arranged in a side by side manner. The oil is introduced tangentially so that a rotary motion is introduced therein. The rotary motion causes the oil and air entrained therein to separate out due to centrifugal/centripetal forces. Air is removed via a centrally disposed tube.

Abstract: An oil system is provided for use with a rotating machine, for example an aircraft generator and associated transmission. The oil system allows the generator to be run without lubrication for a short period of time. Such a situation is likely to occur when the aircraft is inverted or experiences zero G conditions.

Abstract: An oil reservoir is described, and more specifically an oil reservoir used to supply first and second oil circuits within a device that may be subject to inversion, such as an electrical generator fitted to an aircraft. The reservoir has a first outlet 102 from which oil must be available irrespective of the orientation of the reservoir and a second outlet 104 from which oil flow must be interrupted if the generator is inverted. A feed to the first outlet is positioned in a central region of the reservoir where it remains immersed in fluid irrespective of the orientation of the reservoir. A second feed to the second outlet is located adjacent a normally lowermost region of the reservoir such that it is not in fluid flow communication with the reservoir when the reservoir is inverted.

Abstract: A pump system is provided where low pressure (4) and high pressure (6) pumps are coaxially mounted to receive motive power from a shared drive (300). The drive shafts are arranged such that one extends within a void in the other and both have shear regions such that, in the event of torque overload, either shaft can shear so as to disconnect the drive to it's associated pump while the other pump and shaft can continue to work.