Pump housing with an interior for accommodating a pump rotor
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorsLars Bredenbreuker, Joerg Schumacher
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Abstract
In a pump housing having an interior for accommodating a pump rotor, which may be transferred from a radially compressed state into a radially expanded state, and comprises a housing skin revolving in circumferential direction, as well as at least one reinforcement element, a stretch-resistant element revolving in circumferential direction is provided, which is stretched less than 5% in the expanded state as opposed to the force-free state in circumferential direction, and which limits any further expansion of the pump housing in radial direction.
Claims13
A pump housing having an interior for accommodating a compressible and an expandable pump rotor, the pump housing comprising;
- a stretch-resistant, radially compressible pump housing skin extending in a circumferential direction, the pump housing skin formed of a stretch-resistant material, wherein a fully expanded housing skin defines a maximum expanded state of the pump housing;
- at least one reinforcement, the at least one reinforcement configured to expand in the circumferential direction along with expansion of the pump housing skin;
- and
- wherein the stretch-resistant material comprises at least one stretch-resistant fiber extending in the circumferential direction.
Dependencies are inferred from the claim text.