Delivery unit for operating liquid container

The present invention discloses a conveyor unit (19) for motor vehicle operating liquid container (10) having the following features: - the conveyor unit (19) comprises a hollow-shaped stiffening element (20) and an inside of the reinforcing member (20) arranged operating fluid pump (16); - the stiffening element (20) comprises a closure member (22) for closing a container in a wall (11) arranged in the container opening (12) of the working fluid container (10); - the stiffening element (20) is at least indirectly connectable to the container wall by means of the closure element (22) (11); - the stiffening member (20) comprises at its the closing element (22) opposite end a fastening means, by means of which the stiffening element (20) having a container bottom (14) of the working fluid container (10) is at least indirectly connectable; and - connected with the container wall by means of the fastening means with the container bottom (14) and by means of the closure element (22) (11) conveying unit (19) counteracts an internal pressure of the working fluid container conditional (10) deformation.