Vacuum pump with wear adjustment
OwnerDavid Muhs, Douglas S. Prairieinventors
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Abstract
A vacuum pump having components that are subject to wear may be adjusted to compensate for the wear. In some instances, a vacuum pump may include a housing and an impeller disposed at least partially within the housing. A gap between the housing and the impeller may be adjustable to compensate for wear. In some cases, the housing may include a ring that may be moved to adjust a tolerance (or gap) between the ring and the impeller. In some instances, the ring may be rotated to adjust this gap. In other instances, the ring may be translated to adjust the tolerance.
Claims20
A liquid ring vacuum pump comprising:
- a base plate;
- an eccentric ring disposed adjacent the base plate such that the eccentric ring may be rotated relative to the base plate;
- an impeller disposed within the eccentric ring;
- and
- a cover plate disposed over the eccentric ring, the cover plate secured to the base plate.
A liquid ring vacuum pump comprising:
- a base plate;
- an eccentric ring disposed adjacent to the base plate;
- and
- an impeller disposed within the eccentric ring;
- wherein the eccentric ring is rotatable relative to the impeller to define an adjustable tolerance therebetween.
A method of compensating for wear within a liquid ring vacuum pump comprising a base plate, an eccentric ring disposed proximate the base plate, an impeller disposed within the eccentric ring and a cover plate disposed over the eccentric ring, the method comprising the steps of:
- loosening the cover plate;
- rotating the eccentric ring;
- and
- tightening the cover plate.
Dependencies are inferred from the claim text.