Air heating and cooling system for aircraft batteries
First Claim
Patent Images
1. A heating and cooling system for an aircraft battery, said system comprising:
- a battery case for holding a plurality of cells, said cells being spaced from one another to provide at least one air passageway between each of said cells, said passageway having first and second ends, said battery case also defining an air inlet plenum opening to the first end of said air passageway and an air exhaust plenum opening to the second end of said air passageway;
air inlet means for providing air to said inlet plenum and air exhaust means for exhausting air from said exhaust plenum;
means for providing an air pressure differential to circulate air from said air inlet means through said battery case to said air exhaust means;
air heating means operatively mounted with said battery case to heat air prior to said air passing to said air inlet means; and
means responsive to the temperature in said battery case to alter the air flow of said system from a flow through system to a recirculating system, said means recirculating air from said air exhaust means through said air heating means to said air inlet means when the temperature in the battery case drops to an undesirably low level.
6 Assignments
0 Petitions
Accused Products
Abstract
The disclosure relates to a system for maintaining an aircraft battery at its optimum operating temperature. A continuous air flow around the batteries is provided. When cooling the batteries, the system operates in a flow-through mode. When heating the batteries, the system may operate in either a flow-through mode or in a closed loop recirculating mode. A thermostat may determine the crossover point between cooling and heating. Several valve and thermostat arrangements are disclosed to convert the air flow from a flow-through system to a recirculating system.
59 Citations
12 Claims
-
1. A heating and cooling system for an aircraft battery, said system comprising:
-
a battery case for holding a plurality of cells, said cells being spaced from one another to provide at least one air passageway between each of said cells, said passageway having first and second ends, said battery case also defining an air inlet plenum opening to the first end of said air passageway and an air exhaust plenum opening to the second end of said air passageway; air inlet means for providing air to said inlet plenum and air exhaust means for exhausting air from said exhaust plenum; means for providing an air pressure differential to circulate air from said air inlet means through said battery case to said air exhaust means; air heating means operatively mounted with said battery case to heat air prior to said air passing to said air inlet means; and means responsive to the temperature in said battery case to alter the air flow of said system from a flow through system to a recirculating system, said means recirculating air from said air exhaust means through said air heating means to said air inlet means when the temperature in the battery case drops to an undesirably low level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification