Battery heating system
First Claim
1. A battery heating system comprising at least one storage battery, an alternator connected to supply alternating current to the battery and having output means the effective impedance of which is significantly higher that the maximum internal resistance of the battery, a prime mover for driving the alternator, and means for maintaining the current supplied to the battery at a substantially constant value over the normal working speed range of the prime mover.
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Accused Products
Abstract
A battery heating system comprises a number of storage batteries and an alternator driven by a variable speed prime mover connected to supply AC heating current to the batteries. The system is arranged so that the AC current is substantially constant over the working speed range of the prime mover.
42 Citations
8 Claims
- 1. A battery heating system comprising at least one storage battery, an alternator connected to supply alternating current to the battery and having output means the effective impedance of which is significantly higher that the maximum internal resistance of the battery, a prime mover for driving the alternator, and means for maintaining the current supplied to the battery at a substantially constant value over the normal working speed range of the prime mover.
Specification