초록 ▼

Disclosed are a starter and power generator which starts an engine and which is subsequently driven by the engine to generate power, and a motor used in the starter, in particular, a self-controlled commutatorless motor in which a rotating magnetic field is developed across the stator in accordance

Disclosed are a starter and power generator which starts an engine and which is subsequently driven by the engine to generate power, and a motor used in the starter, in particular, a self-controlled commutatorless motor in which a rotating magnetic field is developed across the stator in accordance with an angle of rotation of the rotor. Normally, output matching means is connected to the three phase windings of the stator, whereby an alternator is defined by the combination of the rotor, the stator and the output matching means. However, in response to a starting command, energizing means is substituted for the output matching means, whereby a combination of the rotor, the stator, timing means and energizing means form a commutatorless motor. Thus, subsequent to starting the engine, the motor is driven by the engine to generate power. When the arrangement functions as a commutatorless motor and when a single phase excitation is employed for a lap winding of plurality of phases to define the individual magnetic poles of the stator, a forced starting operation is achieved by causing an energization of at least one of the phases of the stator coils if the starting command is issued at a timing where the energization of all the phases of the stator coils is interrupted.

대표청구항 ▼

A starter and power generator comprising: a rotor including a plurality of magnetic poles, a rotor winding for exciting said magnetic poles, and a rotary shaft; a plurality of slip rings installed on said rotary shaft of said rotor and being connected to said rotor winding; a plurality of brushes, w

A starter and power generator comprising: a rotor including a plurality of magnetic poles, a rotor winding for exciting said magnetic poles, and a rotary shaft; a plurality of slip rings installed on said rotary shaft of said rotor and being connected to said rotor winding; a plurality of brushes, which are in contact with said slip rings, for supplying an exciting current to said rotor winding through said slip rings; first supporting means for rotatably supporting said rotary shaft of the rotor; engaging means for engaging said rotary shaft of the rotor with a rotary shaft of an engine; a stator including three phase windings which are arranged to surround an outer peripheral surface of said rotor; second support means for fixedly supporting the stator in a surrounding relationship with the rotor; timing means for establishing a timing to energize each of the three phase windings of the stator for generating with said three phase windings a rotating magnetic field at the said outer peripheral surface of the rotor; energizing means for energizing the three phase windings of the stator in accordance with the timing established by the timing means; output matching means for receiving individual outputs from the three phase windings of the stator; input means for supplying a command to start the engine; and connection means for connecting the output matching means to the three phase windings of the stator to form an alternator and for substituting the energizing means for the output matching means for connection as a motor in response to a starting command.