Abstract: A governor for use in an engine provided with an overspeed protection device arranged to trip in the event that engine speed exceeds a predetermined speed. The governor comprises a centrifugal weight mechanism comprising at least one weight coupled to an angularly adjustable metering valve member through a lever member, the metering valve member being operable to control the level of fuelling of the associated engine depending on engine speed. The governor further comprises a damping arrangement associated with the lever member which is arranged to damp oscillatory movement of the lever member, in use, and a prevention arrangement for preventing the overspeed protection device associated with the engine tripping upon engine start up.

Abstract: A metering valve arrangement comprises a metering valve member which is angularly adjustable within a metering valve bore provided in a metering valve housing and an adjustment arrangement for adjusting the axial position of the metering valve member within the metering valve bore. The metering valve arrangement includes a first opening provided in the metering valve member which is registerable with a first outlet provided in the metering valve housing to control a first rate of flow of fluid through the first outlet depending on the angular position of the metering valve member within the bore, and a second opening provided in the metering valve member which is registerable with a second outlet provided in the metering valve housing to control a second rate of flow of fluid through the second outlet.

Abstract: A metering valve arrangement comprises a metering valve member which is angularly adjustable within a metering valve bore provided in a metering valve housing and an adjustment arrangement for adjusting the axial position of the metering valve member within the metering valve bore. The metering valve arrangement includes a first opening provided in the metering valve member which is registerable with a first outlet provided in the metering valve housing to control a first rate of flow of fluid through the first outlet depending on the angular position of the metering valve member within the bore, and a second opening provided in the metering valve member which is registerable with a second outlet provided in the metering valve housing to control a second rate of flow of fluid through the second outlet.

Abstract: A governor for use in an engine provided with an overspeed protection device arranged to trip in the event that engine speed exceeds a predetermined speed. The governor comprises a centrifugal weight mechanism comprising at least one weight coupled to an angularly adjustable metering valve member through a lever member, the metering valve member being operable to control the level of fuelling of the associated engine depending on engine speed. The governor further comprises a damping arrangement associated with the lever member which is arranged to damp oscillatory movement of the lever member, in use, and a prevention arrangement for preventing the overspeed protection device associated with the engine tripping upon engine start up.

Abstract: A governor comprising a metering valve member slidable within a bore to control the degree by which an outlet is obscured, the valve member and bore together defining first and second chambers. The governor also comprises a restricted flow passage whereby fuel can flow from the first chamber to the second chamber at a restricted rate, and a control valve controlling communication between the second chamber and a low pressure reservoir. The control valve is adjustable by means of a centrifugal weight mechanism.