Diaphragm pump having a gas venting surface
View Patent ↗A scarred surface structure on the cover curvature of a diaphragm compressor is created by shot blasting. The scarred surface structure hinders the sealing effect between the cover curvature and the diaphragm and thereby counteracts the formation of gas cushions.
1. A diaphragm compressor with a diaphragm hydraulically driven by a piston against a cover curvature progressively from the outward edge region toward the inward center, characterized by the cover curvature having a scarred or stippled surface structure ( 10 ).
2. A diaphragm compressor as defined in claim 1 wherein the scarred or stippled surface structure ( 10 ) is formed by shot blasting.
3. A method for optimizing the gas flow within a diaphragm compressor with a diaphragm hydraulically driven by a piston against a cover curvature from the outward edge region toward the inward center, characterized by creating the cover curvature with a scarred surface structure ( 10 ) by means of shot blasting.
4. A diaphragm compressor comprising:
a cover having a cover curvature with a scarred or stippled surface structure; and
a generally planar diaphragm hydraulically driven against the cover curvature progressively from an outward edge region toward an inward center of the cover curvature;
wherein the scarred or stippled surface structure of the cover curvature is configured for preventing a sealing effect between the diaphragm and cover curvature, over their entire engagement surfaces, when the diaphragm is driven against the cover curvature.