Modular automatic speed changing system
First Claim
1. An automatic speed changing system for a device that powers a load, said device having a device output connector, and said load having a load input connector that is detachably connectable to said device output connector, said speed changing system comprising:
- a housing;
a first input connector, interconnected with said housing, that is detachably connectable to said device output connector;
a first output connector, interconnected with said housing, that is detachably connectable to said load input connector;
means for sensing a parameter functionally related to said load; and
means for generating an output signal to said device to change the speed of said device if said sensed parameter differs from a threshold value.
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Accused Products
Abstract
The modular, automatic idle down system is plugged in series between the 120 VAC output connector of a generator and the input plug of the load device. One prong of the load'"'"'s input plug may be received directly in a load sensor, such as a Hall effect sensor. The self-contained modular unit is connectable to the mechanical or electronic governor of the generator'"'"'s engine. The idling system provides two time delays which delay the idling down of the engine upon initial starting and when the load is removed from the generator. When the sensed load current falls below a threshold value, the idling system generates an output signal, after the predetermined time delays, to override the engine'"'"'s mechanical or electronic governor. The speed-of the engine is thereby reduced from the governed speed to an idle speed.
42 Citations
15 Claims
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1. An automatic speed changing system for a device that powers a load, said device having a device output connector, and said load having a load input connector that is detachably connectable to said device output connector, said speed changing system comprising:
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a housing; a first input connector, interconnected with said housing, that is detachably connectable to said device output connector; a first output connector, interconnected with said housing, that is detachably connectable to said load input connector; means for sensing a parameter functionally related to said load; and means for generating an output signal to said device to change the speed of said device if said sensed parameter differs from a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification