Electric current generator arrangements
AssigneeLucas Industries Limited
InventorsRaymond Sharpe, Kenneth Darnbrough
Life of this patent
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Abstract
An electrical generator arrangement includes a variable-ratio drive device, an alternator driven by the drive device and a generator which is separately excited by the alternator output. An over-running clutch connects the alternator and generator rotors so that in the event of an alteration in the driving output from the drive device the generator can continue to rotate with its normal speed and direction but the frequency of the alternator output provides an indication of the operating state of the drive device.
Claims8
An electric current generator arrangement comprising a continuously-variable-ratio transmission device having input and output shafts, an electric alternator having a rotor drivingly connected to said output shaft, an electrical generator having a first winding excitable by a voltage derived from the alternating output from said alternator and a second winding from which an output current of said generator can be derived, and an over-running clutch connecting said output shaft and the rotor of said generator so that the speed of said output shaft may be less than that of siad rotor, and means responsive to the frequency of an electrical output from said alternator for providing an indication of the speed of the output shaft of said transmission.
An electric current generator arrangement comprising a continuously-variable-ratio transmission device having input and output shafts, an electric alternator having a rotor drivingly connected to said output shaft, an electrical generator having a first winding excitable by a voltage derived from the alternating output from said alternator and a second winding from which an output current of said generator can be derived, and an over-running clutch for connecting said output shaft and the rotor of said generator so that the speed of said output shaft may be less than that of said rotor, and means responsive to the frequency of said alternating output and to a further frequency, for providing a control signal when said frequencies differ by more than a predetermined amount.
Dependencies are inferred from the claim text.