Is there a possibility to display the delivery informations from the ACRIS plugin "Control delivery information and delivery times with rules and dynamic product groups" at the partial deliveries?

Yes, this functionality was added in the plugin version 10.3.0 and now it is possible to use TWIG variables inside the partial delivery info text. Here is an example to view the longest delivery time of all products inside the partial delivery:

{% set minDeliveryDays = 0 %}
{% set maxDeliveryDays = 0 %}
{% if delivery.positions is defined and delivery.positions.elements|length > 0 %}
    {% for deliveryPosition in delivery.positions %}
        {% set calculatedDeliveryTime = null %}
        {% if deliveryPosition.lineItem is defined and deliveryPosition.lineItem.payload and deliveryPosition.lineItem.payload.acrisDeliveryTimeConfiguration and deliveryPosition.lineItem.payload.acrisDeliveryTimeConfiguration.calculatedDeliveryTime is defined and deliveryPosition.lineItem.payload.acrisDeliveryTimeConfiguration.calculatedDeliveryTime|length > 0 %}
            {% set calculatedDeliveryTime = deliveryPosition.lineItem.payload.acrisDeliveryTimeConfiguration.calculatedDeliveryTime %}
        {% elseif deliveryPosition.orderLineItem is defined and deliveryPosition.orderLineItem.payload and deliveryPosition.orderLineItem.payload.acrisDeliveryTimeConfiguration and deliveryPosition.orderLineItem.payload.acrisDeliveryTimeConfiguration.calculatedDeliveryTime is defined and deliveryPosition.orderLineItem.payload.acrisDeliveryTimeConfiguration.calculatedDeliveryTime|length > 0 %}
            {% set calculatedDeliveryTime = deliveryPosition.orderLineItem.payload.acrisDeliveryTimeConfiguration.calculatedDeliveryTime %}
        {% endif %}
        {% if calculatedDeliveryTime is not empty %}
            {% for deliveryTimeConfig in calculatedDeliveryTime %}
                {% if deliveryTimeConfig.minDeliveryDays is defined and deliveryTimeConfig.maxDeliveryDays is defined and deliveryTimeConfig.maxDeliveryDays > maxDeliveryDays %}
                    {% set minDeliveryDays = deliveryTimeConfig.minDeliveryDays %}
                    {% set maxDeliveryDays = deliveryTimeConfig.maxDeliveryDays %}
                {% endif %}
            {% endfor %}
        {% endif %}
    {% endfor %}
{% endif %}
Delivery time {{ minDeliveryDays }}-{{ maxDeliveryDays }} days.