Abstract: A fluid treatment device has a treatment unit and a connection head. A detachable bayonet-type connection device connects the connection head and the treatment unit to each other about a connection axis of the treatment device by a housing connection part of the treatment unit and a head connection part of the connection head that operatively engage each other to form the connection of the detachable bayonet-type connection device. A pretension element is provided for realizing a mechanical pretension pressing the connection head and the treatment unit against each other. A splash guard part is provided that covers at least the detachable bayonet-type connection device.

Abstract: A fluid treatment device has an exchangeable treatment unit and a connection head. A bayonet-type connection device connects connection head and treatment unit to each other by a plug-in/rotation movement about a connection axis of the treatment device and is provided with a housing connection part and a head connection part that operatively engage each other to form a connection of the bayonet-type connection device. Housing connection part and head connection part each have a mutually complementary functional element extending circumferentially about the connection axis and operatively connectable to each other. The bayonet-type connection device has a pretension element for realizing a mechanical pretension pressing the functional elements against each other. A splash guard part is provided that covers at least the connection device.

Abstract: A fluid treatment device has an exchangeable treatment unit and a connection head. A bayonet-type connection device connects connection head and treatment unit to each other by a plug-in/rotation movement about a connection axis of the treatment device and is provided with a housing connection part and a head connection part that operatively engage each other to form a connection of the bayonet-type connection device. Housing connection part and head connection part each have a mutually complementary functional element extending circumferentially about the connection axis and operatively connectable to each other. The bayonet-type connection device has a pretension element for realizing a mechanical pretension pressing the functional elements against each other. A splash guard part is provided that covers at least the connection device.

Abstract: The present invention is directed to an automatic impact inducing device for inducing an impact on an object wherein, in particular on a machine tool.

Abstract: A method for predicting status of machining operation, in particular chatter occurrence comprising the following steps: training a neural network having an input layer, at least one hidden layer, an output layer and a plurality of weights in a pre-training phase and a final-training phase, wherein in the pre-training phase a pre-training data set is provided to the neural network to obtain a pre-trained neural network and in the final-training phase a final-training data set is fed to the pre-trained neural network to obtain a final-trained neural network, wherein the pre-training data set comprises simulated data and the final-training data set comprises experimental data; and performing prediction by utilizing the final-trained neural network to derive prediction data.

Abstract: The present invention is directed to a system for determining the structural characteristics of a machine tool. The system comprises an excitation device configured to induce a dynamic excitation in a tool of the machine tool, a preloading device configured to generate a static force on the tool, and a sensing device for acquiring a set of data based on which the structural characteristics of the tool can be determined.

Abstract: The present invention is directed to a method for predicting chatter of a machine tool. The method comprises the following steps: Feeding first input data into an artificial neural network, which includes a plurality of weights; Determining first output data at the output of artificial neural network based on the first input data and the plurality of weights; Providing the first output data into a stability model to generate prediction data; Comparing the prediction data with measurement stability data and adjusting the plurality of weights of the artificial neural network.

Abstract: The present invention is directed to an automatic impact inducing device for inducing an impact on an object wherein, in particular on a machine tool.

Abstract: The present invention is directed to a system for determining the structural characteristics of a machine tool. The system comprises an excitation device configured to induce a dynamic excitation in a tool of the machine tool, a preloading device configured to generate a static force on the tool, and a sensing device for acquiring a set of data based on which the structural characteristics of the tool can be determined.

Abstract: A filter element has a filter material defining a raw side and a clean side of the filter element and to be flowed through by a medium to be filtered from the raw side to the clean side. A non-return element is disposed on the filter material. The non-return element allows a return flow of the filtered medium from the clean side back to the raw side and prevents a flow of the unfiltered medium from the raw side to the clean side. A filter and a filter system with such a filter element are disclosed. The filter system has a pump to supply medium to be filtered to the filter.

Abstract: A filter element has a filter material defining a raw side and a clean side of the filter element and to be flowed through by a medium to be filtered from the raw side to the clean side. A non-return element is disposed on the filter material. The non-return element allows a return flow of the filtered medium from the clean side back to the raw side and prevents a flow of the unfiltered medium from the raw side to the clean side. A filter and a filter system with such a filter element are disclosed. The filter system has a pump to supply medium to be filtered to the filter.

Abstract: A liquid filter for liquid, a function module, a connecting part, a filter element, and a filter module of a liquid filter are described. The liquid filter includes at least one fluid passage, in particular at least one inlet for liquid to be filtered and/or at least one outlet for filtered liquid and/or at least one separation medium outlet for any medium separated from the liquid. In addition, the liquid filter has at least one filter element which separates at least one inlet from at least one outlet. Furthermore, the liquid filter has at least one replaceable function module which is fluidically connected to at least one fluid passage. At least two functionally different fluid passages, in particular at least one inlet and at least one outlet, are fluidically connected to separate function modules.

Abstract: A filter head for a pre-filtration filter for fuel has an electric pump received in a pump channel. A connecting channel connects the pump at a suction side with a clean side of the filter. An outlet channel connects the pump at a pressure side with a main filter for the pre-filtered fuel. The pump is alternatingly operated in at least two of the following operating modes: a feed or follow-up operation in which, before switching on or after switching off an ignition of the internal combustion engine, the pump supplies fuel to the outlet channel; a venting operation in which the pump pumps air out of the filter and/or a fuel line of the filter head; and a support operation in which, with switched-on ignition, the pump supplies fuel at a pressure suitable as input pressure for a high-pressure pump arranged downstream of the main filter.