Cranking device for internal combustion engines
First Claim
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1. A cranking device for internal combustion engine, comprising a permanently excited starter motor having two brushes with respective connecting lines;
- a switching device having a change-over contact; and
an engaging relay for actuating said change-over contact and having a braking impedance element arranged in said engaging relay, said change-over contact being movable between a first position in which it connects during a starting phase of said starter motor, the connecting lines of said two brushes to a voltage supply, and a second position in which it connects, during a rundown phase of said starting motor, the connecting lines of said two brushes to each other via said braking impedance element of said engaging relay.
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Abstract
A cranking device for internal combustion engines includes a permanently excited cranking motor and an electrical run-down brake, having a switching device (25) which, during the run-down phase of the cranking device, connects the connecting leads of the brushes (4, 4'"'"') of the cranking motor (1) to one another via a resistor (24). An additional winding of the engaging relay (15) of the cranking device is used as the resistor.
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Citations
15 Claims
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1. A cranking device for internal combustion engine, comprising a permanently excited starter motor having two brushes with respective connecting lines;
- a switching device having a change-over contact; and
an engaging relay for actuating said change-over contact and having a braking impedance element arranged in said engaging relay, said change-over contact being movable between a first position in which it connects during a starting phase of said starter motor, the connecting lines of said two brushes to a voltage supply, and a second position in which it connects, during a rundown phase of said starting motor, the connecting lines of said two brushes to each other via said braking impedance element of said engaging relay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a switching device having a change-over contact; and
Specification