Aeronautics and astronautics – Aircraft structure – Ice prevention
Patent
1987-07-10
1992-03-24
Barefoot, Galen
Aeronautics and astronautics
Aircraft structure
Ice prevention
122 26, 237 121, 165 32, B64D 1500
Patent
active
050980360
ABSTRACT:
A single nonfired heat source, such as a diesel engine, drives a hydraulic pump. The hydraulic pump in turn is coupled in a hydraulic circuit with a back-pressure valve which loads the hydraulic pump and hence the diesel engine. The engine also circulates a heat exchanging fluid, such as engine coolant through a second circuit. Water or engine coolant is circulated through the second circuit by means of a pump driven by the diesel engine. An exhaust gas heat exchanger coupled to the exhaust gases from the engine may also be included within the water coolant, the exhaust gases or both, and is then transferred to noncirculating deicing fluid in a storage tank. Heat developed within the hydraulic circuit which loads the engine is also transferred to the noncirculating fluid in the storage tank. The heated noncirculating fluid may be gently stirred to increase heat exchange efficiency and then either pumped directly to the utilization site from the storage tank or pumped in a single pass through a heat exchanger thermally coupled through the water coolant heat exchanger, hydraulic heat exchanger, or both, and then to the utilization site.
REFERENCES:
patent: 2764147 (1956-09-01), Brunner
patent: 3243123 (1966-03-01), Inghram et al.
patent: 3276517 (1966-10-01), Lowe
patent: 3813036 (1974-05-01), Lutz
patent: 4109340 (1978-08-01), Bates
patent: 4191348 (1980-03-01), Holwanda
patent: 4197712 (1990-04-01), Zwick et al.
patent: 4264826 (1981-04-01), Ullmann
patent: 4344567 (1982-08-01), Horne
patent: 4728029 (1988-03-01), Griebel et al.
Brigham William D.
Dinh Nguyen D.
Barefoot Galen
Zwick Energy Research Organization, Inc.
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