An injection apparatus (1) for automatically expelling a dose of injection liquid from a container (5) has a housing (2) having a central longitudinal axis (50) and a first component and a second component. The first component and the second component move relative to each other when injection liquid is expelled. A spring (9) is provided which is tensioned as a dose of injection liquid to be injected is set. When the injection liquid is expelled, the force accumulated in the spring at least partially released. In order to set the injection speed, the injection apparatus (1) has a setting device (41) which influences the force which is necessary for moving the second component relative to the first component.
