Patent application number | Description | Published |
20080264726 | Isolation Valve For The Oil Circuit Of An Airplane Engine - The present invention relates to a turbomachine comprising an air compressor ( | 10-30-2008 |
20090159139 | Recirculation Valve In An Aircraft Engine - The present invention relates to an installation for lubricating and/or cooling in an aircraft engine comprising an oil tank ( | 06-25-2009 |
20090159246 | Heat Exchange System In A Turbomachine - The present invention relates to a heat exchange system in a turbine engine comprising a number of units and equipment ( | 06-25-2009 |
20090165995 | AIR-OIL HEAT EXCHANGER PLACED AT THE LOCATION OF THE AIR SEPARATOR NOSE OF A TURBOJET, AND A TURBOJET INCLUDING SUCH AN AIR-OIL HEAT EXCHANGER - The invention relates to an air-oil heat exchanger located at the inner shroud of the secondary duct of a turbojet. In characteristic manner, it comprises an oil circuit placed inside the separator nose and fins placed outside the top wall of the separator nose, between the leading edge of the separator nose and the outlet guide vanes. | 07-02-2009 |
20100028127 | TURBINE ENGINE LUBRICATION METHOD AND SYSTEM - A method and a system for lubricating a turbomachine including an oil tank, an oil feed pump, an oil/air separator, and at least two enclosures closed by air flow rate seals, each including a low outlet and housing shaft-supporting rolling bearings. The method injects oil from the tank into the enclosures by the pump to lubricate the bearings, introduces compressed air at a low flow rate into the enclosures via the seals to pressurize the enclosures, recuperates all of the air and the oil introduced into the enclosures via their low outlet, uses gravity and the pressurization of the enclosures to convey the oil/air mixture as recovered in this way to the oil/air separator, separates the oil and the air of the mixture by the oil/air separator, returns the oil to the tank, and exhausts the air to outside the turbomachine. | 02-04-2010 |
20100162889 | Combined Pumping And Separating Machine For The Oil Circuit Of A Turbojet - The present invention relates to a combined machine for pumping and separating into two distinct and purified phases a two-phase liquid/gas mixture or fluid, preferably oil/air, entering the machine, comprising means for the suction, pumping and partial separation of the two-phase fluid, means for drying and extracting the separated gas and means for degassing and forcing back the separated liquid, comprising at least three physically separated stages (A,B,C) intended to be activated by a means that is internal or external to the machine, and built into a single casing:
| 07-01-2010 |
20100213010 | Automatic Shut-Off Valve For The Oil Circuit In An Airplane Engine - The present invention concerns a lubrication system in a closed circuit provided with a valve comprising a first position and a second position, as well as an IN inlet, a first BP outlet and a second M outlet, said IN inlet being connected to the outlet of the feed pump, the first BP outlet being connected to the bypass circuit and the second M outlet being connected to the feed circuit. In the first position of the valve, the flow entering via the IN inlet is diverted to the first BP outlet and in the second position, the incoming flow is diverted to the second M outlet, said valve switching from the first position to the second position and vice versa, when the incoming flow rate exceeds a predetermined threshold upwards and downwards respectively. | 08-26-2010 |
20110079378 | METHOD FOR MANUFACTURING A HEAT EXCHANGER AND EXCHANGER OBTAINED BY THE METHOD - The present invention relates to a method for manufacturing an air/fluid heat exchanger ( | 04-07-2011 |
20120128466 | ADVANCED AIR AND OIL CIRCUIT ARCHITECTURE FOR TURBOMACHINE - The present invention relates to a system for lubricating a turbomachine comprising at least one enclosure, called non-ventilated, with members to be lubricated and an air-oil mixture, said enclosure being closed and pressurized using dynamic pressure seals supplied with compressed air to create an airflow from the outside toward the inside of the enclosure, said enclosure comprising an outlet for conveying the air-oil mixture toward an air/oil separator, said separator being provided with an suction function favoring the flow of the air-oil mixture between the enclosure and the separator, characterized in that the lubrication system comprises additional suction means. | 05-24-2012 |
20120130617 | METHOD FOR MONITORING THE OIL SYSTEM OF A TURBOMACHINE - The present invention relates to an overall monitoring method allowing to calculate the autonomy of a lubrication system of an airplane engine and also allowing the diagnosis and prognosis of a plurality of problems and breakdowns of the engine and of its lubrication system by means of measurements taken by sensors arranged in said lubrication system, the method comprising the step of calculating the status of the lubrication system at a given moment and calculating its evolution over time in order to determine the remaining lifetime before a breakdown. | 05-24-2012 |
20120143436 | Monitoring Device for Aircraft Equipment - A device for monitoring aircraft equipment is adapted to be arranged on said equipment and to measure and memorize at least one operation parameter of said equipment. The monitoring device is configured to be activated only in the presence of one or more parameters, representative of said equipment. | 06-07-2012 |
20120168115 | INTEGRATION OF A SURFACE HEAT-EXCHANGER WITH REGULATED AIR FLOW IN AN AIRPLANE ENGINE - The present invention relates to a surface air-cooled oil cooler ( | 07-05-2012 |
20120251373 | Gas Flow Separator with a Thermal Bridge De-Icer - The invention relates to a gas flow separator dividing the flow into a primary and a secondary stream, especially for a dual rotor axial turbomachine. The separator comprises a splitter nose of the turbomachine and includes a generally wedge-shaped leading edge in the gas flow to be split. The flow separator also comprises a metal blade having a longitudinal section in the form of an “S” and located in the nose in contact with the back of the leading edge and extending from the leading edge to a rear end of the separator at some distance from the leading edge, so as to be in contact with a heat source, such as a heat exchanger, located at some distance from the leading edge. | 10-04-2012 |
20130068562 | Monitoring Overfilling In An Aeroplane Engine Lubrication System - The present disclosure relates to lubrication systems for a jet aircraft engine. The system includes an oil tank with a high level sensor and a unit for monitoring the level of oil in a lubricating system. The monitoring unit includes a first input for a high oil level oil level signal, and a second input for a signal that the engine is running, and an output capable of generating an alarm signal. The monitoring unit is configured to generate an overfilling alarm signal, provided that the engine is running and the oil level is equal to or greater than the high level over a given period. This double condition avoids false positives, especially for engines subject to the phenomenon of “gulping”. For these engines the oil level in normal operation is significantly lower than when stopped. These measures can thus provide a reliable means of detecting overfilling. | 03-21-2013 |
20140331639 | Turbomachine Lubrication System with an Anti-Siphon Valve for Windmilling - The present application relates an oil feed system for a turbomachine having a tank designed to contain a volume of oil, a pump designed to suck the oil from the tank and discharge it to at least one device on the turbomachine, and an anti-siphon valve designed to prevent the flow of oil to the device or devices. The anti-siphon valve is located upstream of the pump and is designed to allow the flow of oil when the speed of the pump becomes higher than a speed R1. The present application also relates to a turbojet fitted with a fan and two anti-siphon valves designed to open at different rotational speeds of the first pump. | 11-13-2014 |
20140345247 | Tank and Method for Manufacturing Same - The present invention relates to a method for manufacturing a tank ( | 11-27-2014 |
20140373939 | Piston-Controlled Anti-Siphon Valve - The present application relates to an anti-siphon valve for a tank including a body with an inlet, an outlet, and a passage for the fluid, the passage connecting the inlet to the outlet. The anti-siphon valve further includes a movable cut-off device interacting with a seat to close the passage. The cut-off device normally remains in the closed position and is designed to open the passage in the presence of a positive pressure difference between the inlet and the outlet. The anti-siphon valve further includes an auxiliary control mechanism for the cut-off device towards the passage opening, the control mechanism being designed to act on the cut-off device only to open the passage, so as to enable the cut-off device to move under the effect of pressure at the outlet independently of the mechanism. | 12-25-2014 |