Abstract: The piezo drive is provided with a piezo actuator which can be reversibly expanded with respect to its longitudinal extent and has two ends which are averted from one another and also has two lateral sides which are averted from one another. A conversion transmission is coupled to the piezo actuator for converting an expansion and a subsequent contraction of the piezo actuator into in each case a movement which is directed at an angle which is not equal to 0 degrees, in particular of 90° in relation to the longitudinal extent of the piezo actuator. The conversion transmission has an elastic clip which has two receiving legs, which are situated opposite one another and are at a distance from another, and a connecting which extends between said receiving legs and has at least one section which is directed away from the piezo actuator with respect to the position of said piezo actuator or a section which is bent in the direction of said piezo actuator.

Abstract: A heating device is provided with plates stacked one on top of another. At least one first fluid channel is formed in a fluid-tight manner between a first plate package with a first and a second plate. An electrical heating element is arranged between a first plate of the first plate package and an additional plate. The electrical heating element is accommodated between the two plates in a sealed manner and is electrically insulated, wherein an inlet-side and an outlet side fluid connection of the first fluid channel is arranged on the second plate of the first plate package. The electrical heating element has a connection device for electrical contacting, which is connected to the electrical heating element and protrudes through a window in the second plate of the first plate package, wherein the fluid connections and the window are arranged adjacent to opposing lateral edges of the second plate.

Abstract: The application relates to an induction heating device having a housing and a fluid duct. The fluid duct is arranged in the housing and has a fluid inlet and a fluid outlet. Inside the housing is an induction element which generates an alternating magnetic field and which is separated from the fluid duct in a sealed manner by at least one wall. The device also includes at least one metallic areal heating element arranged in the fluid duct which can be heated by the alternating magnetic field.

Abstract: A heating device is provided with plates stacked one on top of another. At least one first fluid channel is formed in a fluid-tight manner between a first plate package with a first and a second plate. An electrical heating element is arranged between a first plate of the first plate package and an additional plate. The electrical heating element is accommodated between the two plates in a sealed manner and is electrically insulated, wherein an inlet-side and an outlet side fluid connection of the first fluid channel is arranged on the second plate of the first plate package. The electrical heating element has a connection device for electrical contacting, which is connected to the electrical heating element and protrudes through a window in the second plate of the first plate package, wherein the fluid connections and the window are arranged adjacent to opposing lateral edges of the second plate.

Abstract: The invention relates to a heating device having a housing and having a fluid duct which is arranged in said housing and which has a fluid inlet and a fluid outlet, wherein, in the housing, there is provided an element which generates an alternating magnetic field and which is separated from the fluid duct in a sealed manner by at least one wall, wherein furthermore, at least one metallic areal heating element is provided which can be heated by the alternating magnetic field, wherein the at least one areal heating element is arranged in the fluid duct.