Importance

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Abstract

Pump device has pump housing with annular portion; a deformable pump ring that defines annular pump chamber; a first connection and a second connection in fluid communication with the-pump chamber; an eccentric rotatable relative to the pump housing and arranged such that the eccentric deforms the-pump ring and pump ring presses against the annular to pump fluid along the-pump chamber from the-first to the-second connection depending on the current rotational position of the eccentric. A clamping element presses the-pump ring against the-annular portion of the pump housing in a clamping link region. The pump ring has at least one recess for accommodating at least part of the clamping element and is dimensioned to provide a distance between the radially inner side of the clamping element and the-pump ring.

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First Claim