Heating systems – Heat and power plants – Vehicle
Patent
1980-06-09
1982-10-05
Capossela, Ronald C.
Heating systems
Heat and power plants
Vehicle
122 26, 126247, B60H 102
Patent
active
043524567
ABSTRACT:
A cab heating system for material handling equipment which maximizes energy savings by utilizing the heat generated during hydraulic operation. The cab heating system has a hydraulic control unit which controls a material handling implement. A heat exchanger is positioned downstream of the hydraulic control unit. Air flowing through the heat exchanger is heated by the hydraulic fluid and blown by a fan into the interior of the cab. The heating system can also have an auxiliary heat exchanger to further heat the hydraulic fluid. In one embodiment, the auxiliary heat exchanger utilizes engine coolant heated by the vehicle's engine. In another embodiment, the auxiliary heat exchanger utilizes hot exhaust gases from the vehicle's engine. A cooler can be provided to cool the hydraulic fluid. A control valve assembly with a temperature sensor can also be provided to sense the temperature of the hydraulic fluid entering the control valve assembly and to direct the hydraulic fluid to the auxiliary heat exchanger when the temperature of the hydraulic fluid is below a predetermined level or to the cooler when the temperature of the hydraulic fluid is above the predetermined level.
REFERENCES:
patent: 2118884 (1938-05-01), Fuchs
patent: 3112002 (1963-11-01), van der Lely
patent: 3214100 (1965-10-01), Aronson et al.
patent: 3259317 (1966-07-01), Aronson et al.
patent: 3909961 (1975-10-01), Lamer et al.
patent: 4192456 (1980-03-01), Shields et al.
patent: 4197712 (1980-04-01), Zwick et al.
patent: 4211364 (1980-07-01), Sickler
Capossela Ronald C.
J. I. Case Company
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