초록 ▼

An integrated emergency lubrication system is provided to lubricate the bearings of a gas turbine engine in the event that the normal lubrication system for the engine fails for any reason. The emergency system includes an accumulator for storing oil, derived from the normal lubrication system, that

An integrated emergency lubrication system is provided to lubricate the bearings of a gas turbine engine in the event that the normal lubrication system for the engine fails for any reason. The emergency system includes an accumulator for storing oil, derived from the normal lubrication system, that is released in a controlled manner to lubricate the engine\s bearings for several minutes after the normal lubrication system fails. During that time, the operator of the engine has an opportunity to cope with the situation. Energy for operating the emergency lubrication system is derived from compressed air bled form the compressor section of the engine, the compressed air also being combined with oil from the accumulator to form an air/oil mist that is sprayed over the bearings to be lubricated. A plurality of valves provided to control the flow of the oil and the air and to regulate the pressure of the air, all valves and associated elements being integrated in an assembly that is relatively inexpensive to manufacture, highly reliable, and easily maintained. The configuration also minimizes vulnerability to extraneous forces and has the further benefit of not being attitude sensitive, rendering it particularly useful in aircraft employing gas turbine engines.

대표청구항 ▼

An integrated emergency lubricating system for lubricating the bearings of a gas turbine engine when its normal lubrication system fails comprising: an oil accumulator for storing an emergency oil supply derived from the normal lubrication system when the gas turbine engine is operating normally; a

An integrated emergency lubricating system for lubricating the bearings of a gas turbine engine when its normal lubrication system fails comprising: an oil accumulator for storing an emergency oil supply derived from the normal lubrication system when the gas turbine engine is operating normally; a source of compressed air; and oil pressure sensitive valve means responsive to the normal pressure of oil in the normal lubrication system for blocking the flow of oil from said accumulator to said bearings during normal operation, and responsive to a drop in the normal oil pressure in the normal lubricating system for permitting air to flow from said source to said oil accumulator when the normal lubrication system fails whereby oil in said oil accumulator is displaced by the air and supplied to the bearings requiring emergency lubrication.