How a Closed Loop Hydraulic Transmission Works.

Ahora si podré entender mejor el diagrama hidráulico, por que la bomba impulsora que es movida por el motor de la máquina a pesar de girar en un solo sentido aparece con dos salidas. Las dos salidas se deben a que existe un mecanismo que la succión la convierte en salida para cuando se requiere cambiar de marcha, lo que se logra cambiando el flujo del aceite en el motor de marcha, Thank you very much guys!!!!!!

Dear Adward,
External engine or electric motor is connected to variable displacement piston pump on the left which is running at CONSTANT speed. The rotation speed of the motor on the right is controlled by the amount of oil send it through variable displacement piston pump. This is adjusted by changing the position of the swash plate. When the arm is up position motor rotates in CW direction, when it is in the middle position no flow goes to the motor and when the arm is in down position, motor rotates CCW direction. When the location of the arm changes, depending on position, the amount of oil and its direction can be changed.