Diaphragm chucking with elasticity adjustment
AssigneeLEWA Herbert Ott GmbH & Co.
InventorEberhard Schluecker
Life of this patent
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Abstract
A diaphragm pump with hydraulically powered diaphragm that is so chucked on a circulating rim between a pump lid and a pump housing in a predetermined radial chucking area and with a predetermined press-on force between the pump lid and the pump housing that the press-on force will be below a flow limit of the diaphragm material. At least one elastic part is provided additionally in the chucking area. That part is so designed that it will elastically compensate for any reductions occurring during the operation of the diaphragm pump in the press-on pressure in the chucking area of the diaphragm between the pump lid and the pump housing.
Claims12
Diaphragm pump comprising:
- hydraulically powered diaphragm chucked at a circulating rim between a pump lid and a pump housing in a predetermined radial chucking area and with a predetermined press-on force between the pump lid and the pump housing so that the press-on force will be below the flow limit of the diaphragm material, and in the chucking area, there is at least one elastic part that elastically compensates for any reductions occurring during the operation of the diaphragm pump in the press-on force in the chucking area of the diaphragm between the pump lid and the pump housing.
Dependencies are inferred from the claim text.