Diaphragm pump for e.g. supercharging oil engine in vehicle, has pump body formed by two rigid shrouds and deformable membrane that is placed between shrouds, where adjustment units adjust distance between shrouds to vary flow of pump

摘要

The pump has a pump body (10) formed by two rigid shrouds (31, 32) and a deformable membrane (33) that is placed between the rigid shrouds. Adjustment units adjust distance between the rigid shrouds to vary flow of the pump. The shrouds include symmetry of revolution around axis, and an axial outlet opening (29) is provided on the shroud (31). The adjustment units displace the shroud (32) parallel to the revolution axis. The pump body is placed in a chamber including a lateral inlet conduit that opens into a peripheral inlet opening (27) of the pump body.