Vacuum pumps – basic information

Information on the product

Why do we need vacuum pumps? What types of vacuum pumps are there? How does a single-vane vacuum pump work? What are the advantages of electric vacuum pumps? The following article provides an overview.

Application area

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Conventional diesel engines are fitted with a vacuum pump as standard, as they have no throttle valve and therefore cannot generate a vacuum. Vacuum pumps are also used in petrol engines if there is an insufficient vacuum in the intake manifold after the throttle valve.

Vacuum pump variants

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Vacuum pumps that move a piston or diaphragm back and forth have long proven their worth in the field. A more recent development is vane-type vacuum pumps with a rotary drive.

Drive variants

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Vacuum pumps can be driven by means of cams, tappets, chains, belts or cam discs. Single-vane vacuum pumps are state-of-the-art: they are mostly mounted to the cylinder head and are driven by the camshaft. Electric vacuum pumps can be switched on independently of the vehicle engine as and when needed.

Video - Vacuum pumps -- Basic information

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