VACUUM PUMP FOR APPLICATIONS IN VACUUM PACKAGING MACHINES

摘要

The invention relates to a vacuum pump for applications in vacuum packaging machines, comprising: a cylinder (11) consisting of the envelope of two parallel, transversely intersected cylindrical chambers, the axes of said chambers lying in the same plane and one of the faces of said chambers being a wall on which the suction opening (17) is provided, and also of the outer envelope surrounding the envelope of two parallel cylindrical chambers in order to form a confined space provided with an inlet and an outlet, enabling a fluid carrying out the heat exchange to circulate; and a driving housing (12) containing the motor and the components for driving and synchronising the pumping rotors, that hold said rotors in an overhanging manner and are used to support and centre the cylinder (11).