Temperature control system

Details Temperature control system Temperature control system

1990-07-30

1991-12-17

Tapolcai, William E.

Heat exchange

Structural installation

236 80E, B60H 102

Patent

active

050727818

ABSTRACT:
An improved temperature control system is disclosed that provides an aircraft working or supply fluid within a desired temperature range for anti-icing, air conditioning and other aircraft subsystems. The supply fluid is bled from compressor stages of a gas turbine engine and passes through a precooler in a heat exchange relationship with a cooling fluid, bled from a fan stage of the engine. A single temperature sensor includes a pair of control poppet or variable orifice ball valves that are adjustably actuated in response to temperature changes of the supply fluid downstream of the precooler. The control poppet valves pneumatically regulate flow of the supply fluid and cooling fluid upstream of the precooler, to keep the supply fluid within the desired temperature range.

REFERENCES:
patent: 1508938 (1924-09-01), Powers et al.
patent: 2152028 (1939-03-01), Church
patent: 2424891 (1947-07-01), Kirchhoff
patent: 2449766 (1948-09-01), Brown
patent: 3352489 (1967-11-01), Coulombe et al.
patent: 3561483 (1971-02-01), Taplin
patent: 4318509 (1982-03-01), Patrick et al.

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