System for regulating oil and fuel temperatures of a turbojet en

Power plants – Combustion products used as motive fluid – With lubricators

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Details

60 3983, 60736, F02C 706, F02C 7224

Patent

active

056155476

ABSTRACT:
A system is disclosed for regulating oil and fuel temperatures in a turbojet engine having an engine accessory driven at constant speed by a power transmission which is driven by the turbojet engine. The system has a first closed oil circuit for circulating oil through the turbojet engine, a second closed oil circuit for circulating oil through the power transmission, a fuel circuit for supplying fuel to the turbojet engine, an air/oil heat exchanger connected to the first closed oil circuit to pass oil in heat exchange relationship with air, an oil/fuel heat exchanger connected to the fuel circuit and to the first closed oil circuit downstream of the air/oil heat exchanger to pass oil and fuel in heat exchange relationship, and an oil/oil heat exchanger connected to the first and second closed oil circuits to pass oil in heat exchange relationship, the connection to the first closed oil circuit being downstream of the oil/fuel heat exchanger.

REFERENCES:
patent: 4474001 (1984-10-01), Griffin et al.
patent: 4705100 (1987-11-01), Black et al.
patent: 5105875 (1992-04-01), McArthur
patent: 5438823 (1995-08-01), Loxley et al.

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