Motorized brake actuator, especially for rail vehicles

Details Motorized brake actuator, especially for rail vehicles Motorized brake actuator, especially for rail vehicles

1997-01-31

1998-09-08

Oberleitner, Robert J.

Brakes

Operators

Spring

188180, B60T 1304

Patent

active

058032118

ABSTRACT:
A brake system for gradual, uniform and jerk-free deceleration of a load, such as a railway car, can have a motor which is operable to store force in a spring and which force is applied in a force-transmitting chain including a measuring spring to a brake element. The displacement of the measuring spring is translated into a displacement of the wiper of a variable resistor connected in a common adjustable branch of a Wheatstone bridge with a setpoint resistor and with an inverse characteristic resistor. The two latter resistors have pairs of terminals to which control currents are applied and a switch is provided to alternatively shunt one or the other of the two pairs of terminals.

REFERENCES:
patent: 4327414 (1982-04-01), Klein
patent: 4557355 (1985-12-01), Wilke
patent: 4658939 (1987-04-01), Kircher
patent: 4805740 (1989-02-01), Wilke
patent: 5620077 (1997-04-01), Richard

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