Temperature control system for lubricant and fuel of a jet engine

• Main Authors: MAIGNAN, CLAUDE PAUL HENRI, LECORDIX, JEAN-LOIC, HERVE, HUGUES, MICHEL GEORGES, BEUTIN, BRUNO, ALBERT, CRETI, JOEL, MASSOT, GILLES CLAUDE GABRIEL, PINCEMIN,JEAN-MARIE,NOEL, THOREL, CHRISTOPHE JEAN FRANCOIS, DONNADIEU, JEAN-PIERRE, GARNIER, FRANCIS, GEORGES ALBERT, VENNIN, GERARD MARIE RENE MARCEL, TOURON, CAROLE CLAUDINE
• Format: Patent
• Language: English; French; German
• Published: 10.07.1996
• Edition: 6
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The system provides temperature control of oil and fuel in the turbojet engine (1) equipped with an alternator (2). It includes a first oil circuit (4) for cooling the engine oil, and a second oil circuit (10) for cooling the lubrication oil for the alternator. The first oil circuit (4) includes an air/oil heat exchanger (5) and a fuel/oil heat exchanger (7) as well as an oil/oil heat exchanger for the cooling the oil circulating in the second oil circuit (10). Controls (20-25) are provided for the flow of oil through the exchangers as a function of the flight conditions and the oil temperatures. L'invention concerne un système de régulation des températures d'huile et du carburant dans un turboréacteur (1) équipé, d'un alternateur (2), et comportant un premier circuit d'huile (4) pour le refroidissement de l'huile du moteur, un deuxième circuit d'huile (10) pour le refroidissement de l'huile de lubrification des moyens d'entraînement (3) de l'alternateur. Le premier circuit d'huile (4) comporte d'amont en aval un échangeur de chaleur air/huile (5), un échangeur de chaleur huile/carburant (7) et un échangeur huile/huile (8) pour le refroidissement de l'huile circulant dans le deuxième circuit (10).